From 03efed8a2a1b8e00164eb4720a82a7dd5e368a8e Mon Sep 17 00:00:00 2001 From: Tiger Yang Date: Sat, 28 May 2011 00:34:19 +0800 Subject: [PATCH 001/207] ocfs2: Bugfix for hard readonly mount ocfs2 cannot currently mount a device that is readonly at the media ("hard readonly"). Fix the broken places. see detail: http://oss.oracle.com/bugzilla/show_bug.cgi?id=1322 [ Description edited -- Joel ] Signed-off-by: Tiger Yang Reviewed-by: Sunil Mushran Signed-off-by: Joel Becker --- fs/ocfs2/dlmglue.c | 21 +++++++++++++++------ fs/ocfs2/super.c | 3 ++- 2 files changed, 17 insertions(+), 7 deletions(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 7642d7ca73e5..da103f555a62 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -1692,7 +1692,7 @@ int ocfs2_open_lock(struct inode *inode) mlog(0, "inode %llu take PRMODE open lock\n", (unsigned long long)OCFS2_I(inode)->ip_blkno); - if (ocfs2_mount_local(osb)) + if (ocfs2_is_hard_readonly(osb) || ocfs2_mount_local(osb)) goto out; lockres = &OCFS2_I(inode)->ip_open_lockres; @@ -1718,6 +1718,12 @@ int ocfs2_try_open_lock(struct inode *inode, int write) (unsigned long long)OCFS2_I(inode)->ip_blkno, write ? "EXMODE" : "PRMODE"); + if (ocfs2_is_hard_readonly(osb)) { + if (write) + status = -EROFS; + goto out; + } + if (ocfs2_mount_local(osb)) goto out; @@ -2298,7 +2304,7 @@ int ocfs2_inode_lock_full_nested(struct inode *inode, if (ocfs2_is_hard_readonly(osb)) { if (ex) status = -EROFS; - goto bail; + goto getbh; } if (ocfs2_mount_local(osb)) @@ -2356,7 +2362,7 @@ int ocfs2_inode_lock_full_nested(struct inode *inode, mlog_errno(status); goto bail; } - +getbh: if (ret_bh) { status = ocfs2_assign_bh(inode, ret_bh, local_bh); if (status < 0) { @@ -2628,8 +2634,11 @@ int ocfs2_dentry_lock(struct dentry *dentry, int ex) BUG_ON(!dl); - if (ocfs2_is_hard_readonly(osb)) - return -EROFS; + if (ocfs2_is_hard_readonly(osb)) { + if (ex) + return -EROFS; + return 0; + } if (ocfs2_mount_local(osb)) return 0; @@ -2647,7 +2656,7 @@ void ocfs2_dentry_unlock(struct dentry *dentry, int ex) struct ocfs2_dentry_lock *dl = dentry->d_fsdata; struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb); - if (!ocfs2_mount_local(osb)) + if (!ocfs2_is_hard_readonly(osb) && !ocfs2_mount_local(osb)) ocfs2_cluster_unlock(osb, &dl->dl_lockres, level); } diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index cdbaf5e97308..029c4cd8a691 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1974,7 +1974,8 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) * If we failed before we got a uuid_str yet, we can't stop * heartbeat. Otherwise, do it. */ - if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) + if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str && + !ocfs2_is_hard_readonly(osb)) hangup_needed = 1; if (osb->cconn) From 3d75be7c4771c7e4d5b5fa586a599af8473de32c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 29 May 2011 22:56:31 +0300 Subject: [PATCH 002/207] ocfs2: checking the wrong variable in ocfs2_move_extent() "new_phys_cpos" is always a valid pointer here. ocfs2_probe_alloc_group() allocates "*new_phys_cpos". Signed-off-by: Dan Carpenter Signed-off-by: Joel Becker --- fs/ocfs2/move_extents.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c index cd9427023d2e..d3433d60dbb9 100644 --- a/fs/ocfs2/move_extents.c +++ b/fs/ocfs2/move_extents.c @@ -746,7 +746,7 @@ static int ocfs2_move_extent(struct ocfs2_move_extents_context *context, */ ocfs2_probe_alloc_group(inode, gd_bh, &goal_bit, len, move_max_hop, new_phys_cpos); - if (!new_phys_cpos) { + if (!*new_phys_cpos) { ret = -ENOSPC; goto out_commit; } From 87f0d5c8db7aad85b9120c26723fdc63cd84a460 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 29 May 2011 22:57:16 +0300 Subject: [PATCH 003/207] ocfs2: null deref on allocation error The original code had a null derefence in the error handling. Signed-off-by: Dan Carpenter Signed-off-by: Joel Becker --- fs/ocfs2/ioctl.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index bc91072b7219..d9a6ce779266 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -381,7 +381,7 @@ int ocfs2_info_handle_freeinode(struct inode *inode, if (!oifi) { status = -ENOMEM; mlog_errno(status); - goto bail; + goto out_err; } if (o2info_from_user(*oifi, req)) @@ -431,7 +431,7 @@ int ocfs2_info_handle_freeinode(struct inode *inode, o2info_set_request_error(&oifi->ifi_req, req); kfree(oifi); - +out_err: return status; } @@ -666,7 +666,7 @@ int ocfs2_info_handle_freefrag(struct inode *inode, if (!oiff) { status = -ENOMEM; mlog_errno(status); - goto bail; + goto out_err; } if (o2info_from_user(*oiff, req)) @@ -716,7 +716,7 @@ int ocfs2_info_handle_freefrag(struct inode *inode, o2info_set_request_error(&oiff->iff_req, req); kfree(oiff); - +out_err: return status; } From 730e663bd82c1a10a85ff00728d34152a5a67ec8 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 30 May 2011 21:58:05 +0900 Subject: [PATCH 004/207] ocfs2: use proper little-endian bitops Using __test_and_{set,clear}_bit_le() with ignoring its return value can be replaced with __{set,clear}_bit_le(). Signed-off-by: Akinobu Mita Cc: Joel Becker Cc: Mark Fasheh Cc: ocfs2-devel@oss.oracle.com Signed-off-by: Joel Becker --- fs/ocfs2/ocfs2.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index 409285854f64..bcde467acca3 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -836,13 +836,13 @@ static inline unsigned int ocfs2_clusters_to_megabytes(struct super_block *sb, static inline void _ocfs2_set_bit(unsigned int bit, unsigned long *bitmap) { - __test_and_set_bit_le(bit, bitmap); + __set_bit_le(bit, bitmap); } #define ocfs2_set_bit(bit, addr) _ocfs2_set_bit((bit), (unsigned long *)(addr)) static inline void _ocfs2_clear_bit(unsigned int bit, unsigned long *bitmap) { - __test_and_clear_bit_le(bit, bitmap); + __clear_bit_le(bit, bitmap); } #define ocfs2_clear_bit(bit, addr) _ocfs2_clear_bit((bit), (unsigned long *)(addr)) From d2eece376648d2f7ba0a7d78f3c4d0421e608ac2 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:21:54 -0700 Subject: [PATCH 005/207] ocfs2/cluster: Abort heartbeat start on hard-ro devices Currently if the heartbeat device is hard-ro, the o2hb thread keeps chugging along and dumping errors along the way. The user needs to manually stop the heartbeat. The patch addresses this shortcoming by adding a limit to the number of times the hb thread will iterate in an unsteady state. If the hb thread does not ready steady state in that many interation, the start is aborted. Signed-off-by: Sunil Mushran --- fs/ocfs2/cluster/heartbeat.c | 187 ++++++++++++++++++++++------------- 1 file changed, 117 insertions(+), 70 deletions(-) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 9a3e6bbff27b..4728a746281d 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -216,6 +216,7 @@ struct o2hb_region { struct list_head hr_all_item; unsigned hr_unclean_stop:1, + hr_aborted_start:1, hr_item_pinned:1, hr_item_dropped:1; @@ -254,6 +255,10 @@ struct o2hb_region { * a more complete api that doesn't lead to this sort of fragility. */ atomic_t hr_steady_iterations; + /* terminate o2hb thread if it does not reach steady state + * (hr_steady_iterations == 0) within hr_unsteady_iterations */ + atomic_t hr_unsteady_iterations; + char hr_dev_name[BDEVNAME_SIZE]; unsigned int hr_timeout_ms; @@ -324,6 +329,10 @@ static void o2hb_write_timeout(struct work_struct *work) static void o2hb_arm_write_timeout(struct o2hb_region *reg) { + /* Arm writeout only after thread reaches steady state */ + if (atomic_read(®->hr_steady_iterations) != 0) + return; + mlog(ML_HEARTBEAT, "Queue write timeout for %u ms\n", O2HB_MAX_WRITE_TIMEOUT_MS); @@ -537,9 +546,14 @@ static int o2hb_verify_crc(struct o2hb_region *reg, return read == computed; } -/* We want to make sure that nobody is heartbeating on top of us -- - * this will help detect an invalid configuration. */ -static void o2hb_check_last_timestamp(struct o2hb_region *reg) +/* + * Compare the slot data with what we wrote in the last iteration. + * If the match fails, print an appropriate error message. This is to + * detect errors like... another node hearting on the same slot, + * flaky device that is losing writes, etc. + * Returns 1 if check succeeds, 0 otherwise. + */ +static int o2hb_check_own_slot(struct o2hb_region *reg) { struct o2hb_disk_slot *slot; struct o2hb_disk_heartbeat_block *hb_block; @@ -548,13 +562,13 @@ static void o2hb_check_last_timestamp(struct o2hb_region *reg) slot = ®->hr_slots[o2nm_this_node()]; /* Don't check on our 1st timestamp */ if (!slot->ds_last_time) - return; + return 0; hb_block = slot->ds_raw_block; if (le64_to_cpu(hb_block->hb_seq) == slot->ds_last_time && le64_to_cpu(hb_block->hb_generation) == slot->ds_last_generation && hb_block->hb_node == slot->ds_node_num) - return; + return 1; #define ERRSTR1 "Another node is heartbeating on device" #define ERRSTR2 "Heartbeat generation mismatch on device" @@ -574,6 +588,8 @@ static void o2hb_check_last_timestamp(struct o2hb_region *reg) (unsigned long long)slot->ds_last_time, hb_block->hb_node, (unsigned long long)le64_to_cpu(hb_block->hb_generation), (unsigned long long)le64_to_cpu(hb_block->hb_seq)); + + return 0; } static inline void o2hb_prepare_block(struct o2hb_region *reg, @@ -719,17 +735,24 @@ static void o2hb_shutdown_slot(struct o2hb_disk_slot *slot) o2nm_node_put(node); } -static void o2hb_set_quorum_device(struct o2hb_region *reg, - struct o2hb_disk_slot *slot) +static void o2hb_set_quorum_device(struct o2hb_region *reg) { - assert_spin_locked(&o2hb_live_lock); - if (!o2hb_global_heartbeat_active()) return; - if (test_bit(reg->hr_region_num, o2hb_quorum_region_bitmap)) + /* Prevent race with o2hb_heartbeat_group_drop_item() */ + if (kthread_should_stop()) return; + /* Tag region as quorum only after thread reaches steady state */ + if (atomic_read(®->hr_steady_iterations) != 0) + return; + + spin_lock(&o2hb_live_lock); + + if (test_bit(reg->hr_region_num, o2hb_quorum_region_bitmap)) + goto unlock; + /* * A region can be added to the quorum only when it sees all * live nodes heartbeat on it. In other words, the region has been @@ -737,13 +760,10 @@ static void o2hb_set_quorum_device(struct o2hb_region *reg, */ if (memcmp(reg->hr_live_node_bitmap, o2hb_live_node_bitmap, sizeof(o2hb_live_node_bitmap))) - return; + goto unlock; - if (slot->ds_changed_samples < O2HB_LIVE_THRESHOLD) - return; - - printk(KERN_NOTICE "o2hb: Region %s is now a quorum device\n", - config_item_name(®->hr_item)); + printk(KERN_NOTICE "o2hb: Region %s (%s) is now a quorum device\n", + config_item_name(®->hr_item), reg->hr_dev_name); set_bit(reg->hr_region_num, o2hb_quorum_region_bitmap); @@ -754,6 +774,8 @@ static void o2hb_set_quorum_device(struct o2hb_region *reg, if (o2hb_pop_count(&o2hb_quorum_region_bitmap, O2NM_MAX_REGIONS) > O2HB_PIN_CUT_OFF) o2hb_region_unpin(NULL); +unlock: + spin_unlock(&o2hb_live_lock); } static int o2hb_check_slot(struct o2hb_region *reg, @@ -925,8 +947,6 @@ static int o2hb_check_slot(struct o2hb_region *reg, slot->ds_equal_samples = 0; } out: - o2hb_set_quorum_device(reg, slot); - spin_unlock(&o2hb_live_lock); o2hb_run_event_list(&event); @@ -957,7 +977,8 @@ static int o2hb_highest_node(unsigned long *nodes, static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) { - int i, ret, highest_node, change = 0; + int i, ret, highest_node; + int membership_change = 0, own_slot_ok = 0; unsigned long configured_nodes[BITS_TO_LONGS(O2NM_MAX_NODES)]; unsigned long live_node_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)]; struct o2hb_bio_wait_ctxt write_wc; @@ -966,7 +987,7 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) sizeof(configured_nodes)); if (ret) { mlog_errno(ret); - return ret; + goto bail; } /* @@ -982,8 +1003,9 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) highest_node = o2hb_highest_node(configured_nodes, O2NM_MAX_NODES); if (highest_node >= O2NM_MAX_NODES) { - mlog(ML_NOTICE, "ocfs2_heartbeat: no configured nodes found!\n"); - return -EINVAL; + mlog(ML_NOTICE, "o2hb: No configured nodes found!\n"); + ret = -EINVAL; + goto bail; } /* No sense in reading the slots of nodes that don't exist @@ -993,29 +1015,27 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) ret = o2hb_read_slots(reg, highest_node + 1); if (ret < 0) { mlog_errno(ret); - return ret; + goto bail; } /* With an up to date view of the slots, we can check that no * other node has been improperly configured to heartbeat in * our slot. */ - o2hb_check_last_timestamp(reg); + own_slot_ok = o2hb_check_own_slot(reg); /* fill in the proper info for our next heartbeat */ o2hb_prepare_block(reg, reg->hr_generation); - /* And fire off the write. Note that we don't wait on this I/O - * until later. */ ret = o2hb_issue_node_write(reg, &write_wc); if (ret < 0) { mlog_errno(ret); - return ret; + goto bail; } i = -1; while((i = find_next_bit(configured_nodes, O2NM_MAX_NODES, i + 1)) < O2NM_MAX_NODES) { - change |= o2hb_check_slot(reg, ®->hr_slots[i]); + membership_change |= o2hb_check_slot(reg, ®->hr_slots[i]); } /* @@ -1030,18 +1050,39 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) * disk */ mlog(ML_ERROR, "Write error %d on device \"%s\"\n", write_wc.wc_error, reg->hr_dev_name); - return write_wc.wc_error; + ret = write_wc.wc_error; + goto bail; } - o2hb_arm_write_timeout(reg); + /* Skip disarming the timeout if own slot has stale/bad data */ + if (own_slot_ok) { + o2hb_set_quorum_device(reg); + o2hb_arm_write_timeout(reg); + } +bail: /* let the person who launched us know when things are steady */ - if (!change && (atomic_read(®->hr_steady_iterations) != 0)) { - if (atomic_dec_and_test(®->hr_steady_iterations)) - wake_up(&o2hb_steady_queue); + if (atomic_read(®->hr_steady_iterations) != 0) { + if (!ret && own_slot_ok && !membership_change) { + if (atomic_dec_and_test(®->hr_steady_iterations)) + wake_up(&o2hb_steady_queue); + } } - return 0; + if (atomic_read(®->hr_steady_iterations) != 0) { + if (atomic_dec_and_test(®->hr_unsteady_iterations)) { + printk(KERN_NOTICE "o2hb: Unable to stabilize " + "heartbeart on region %s (%s)\n", + config_item_name(®->hr_item), + reg->hr_dev_name); + atomic_set(®->hr_steady_iterations, 0); + reg->hr_aborted_start = 1; + wake_up(&o2hb_steady_queue); + ret = -EIO; + } + } + + return ret; } /* Subtract b from a, storing the result in a. a *must* have a larger @@ -1095,7 +1136,8 @@ static int o2hb_thread(void *data) /* Pin node */ o2nm_depend_this_node(); - while (!kthread_should_stop() && !reg->hr_unclean_stop) { + while (!kthread_should_stop() && + !reg->hr_unclean_stop && !reg->hr_aborted_start) { /* We track the time spent inside * o2hb_do_disk_heartbeat so that we avoid more than * hr_timeout_ms between disk writes. On busy systems @@ -1103,10 +1145,7 @@ static int o2hb_thread(void *data) * likely to time itself out. */ do_gettimeofday(&before_hb); - i = 0; - do { - ret = o2hb_do_disk_heartbeat(reg); - } while (ret && ++i < 2); + ret = o2hb_do_disk_heartbeat(reg); do_gettimeofday(&after_hb); elapsed_msec = o2hb_elapsed_msecs(&before_hb, &after_hb); @@ -1117,7 +1156,8 @@ static int o2hb_thread(void *data) after_hb.tv_sec, (unsigned long) after_hb.tv_usec, elapsed_msec); - if (elapsed_msec < reg->hr_timeout_ms) { + if (!kthread_should_stop() && + elapsed_msec < reg->hr_timeout_ms) { /* the kthread api has blocked signals for us so no * need to record the return value. */ msleep_interruptible(reg->hr_timeout_ms - elapsed_msec); @@ -1134,20 +1174,20 @@ static int o2hb_thread(void *data) * to timeout on this region when we could just as easily * write a clear generation - thus indicating to them that * this node has left this region. - * - * XXX: Should we skip this on unclean_stop? */ - o2hb_prepare_block(reg, 0); - ret = o2hb_issue_node_write(reg, &write_wc); - if (ret == 0) { - o2hb_wait_on_io(reg, &write_wc); - } else { - mlog_errno(ret); + */ + if (!reg->hr_unclean_stop && !reg->hr_aborted_start) { + o2hb_prepare_block(reg, 0); + ret = o2hb_issue_node_write(reg, &write_wc); + if (ret == 0) + o2hb_wait_on_io(reg, &write_wc); + else + mlog_errno(ret); } /* Unpin node */ o2nm_undepend_this_node(); - mlog(ML_HEARTBEAT|ML_KTHREAD, "hb thread exiting\n"); + mlog(ML_HEARTBEAT|ML_KTHREAD, "o2hb thread exiting\n"); return 0; } @@ -1426,6 +1466,8 @@ static void o2hb_region_release(struct config_item *item) struct page *page; struct o2hb_region *reg = to_o2hb_region(item); + mlog(ML_HEARTBEAT, "hb region release (%s)\n", reg->hr_dev_name); + if (reg->hr_tmp_block) kfree(reg->hr_tmp_block); @@ -1792,7 +1834,10 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg, live_threshold <<= 1; spin_unlock(&o2hb_live_lock); } - atomic_set(®->hr_steady_iterations, live_threshold + 1); + ++live_threshold; + atomic_set(®->hr_steady_iterations, live_threshold); + /* unsteady_iterations is double the steady_iterations */ + atomic_set(®->hr_unsteady_iterations, (live_threshold << 1)); hb_task = kthread_run(o2hb_thread, reg, "o2hb-%s", reg->hr_item.ci_name); @@ -1809,14 +1854,12 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg, ret = wait_event_interruptible(o2hb_steady_queue, atomic_read(®->hr_steady_iterations) == 0); if (ret) { - /* We got interrupted (hello ptrace!). Clean up */ - spin_lock(&o2hb_live_lock); - hb_task = reg->hr_task; - reg->hr_task = NULL; - spin_unlock(&o2hb_live_lock); + atomic_set(®->hr_steady_iterations, 0); + reg->hr_aborted_start = 1; + } - if (hb_task) - kthread_stop(hb_task); + if (reg->hr_aborted_start) { + ret = -EIO; goto out; } @@ -1833,8 +1876,8 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg, ret = -EIO; if (hb_task && o2hb_global_heartbeat_active()) - printk(KERN_NOTICE "o2hb: Heartbeat started on region %s\n", - config_item_name(®->hr_item)); + printk(KERN_NOTICE "o2hb: Heartbeat started on region %s (%s)\n", + config_item_name(®->hr_item), reg->hr_dev_name); out: if (filp) @@ -2092,13 +2135,6 @@ static void o2hb_heartbeat_group_drop_item(struct config_group *group, /* stop the thread when the user removes the region dir */ spin_lock(&o2hb_live_lock); - if (o2hb_global_heartbeat_active()) { - clear_bit(reg->hr_region_num, o2hb_region_bitmap); - clear_bit(reg->hr_region_num, o2hb_live_region_bitmap); - if (test_bit(reg->hr_region_num, o2hb_quorum_region_bitmap)) - quorum_region = 1; - clear_bit(reg->hr_region_num, o2hb_quorum_region_bitmap); - } hb_task = reg->hr_task; reg->hr_task = NULL; reg->hr_item_dropped = 1; @@ -2107,19 +2143,30 @@ static void o2hb_heartbeat_group_drop_item(struct config_group *group, if (hb_task) kthread_stop(hb_task); + if (o2hb_global_heartbeat_active()) { + spin_lock(&o2hb_live_lock); + clear_bit(reg->hr_region_num, o2hb_region_bitmap); + clear_bit(reg->hr_region_num, o2hb_live_region_bitmap); + if (test_bit(reg->hr_region_num, o2hb_quorum_region_bitmap)) + quorum_region = 1; + clear_bit(reg->hr_region_num, o2hb_quorum_region_bitmap); + spin_unlock(&o2hb_live_lock); + printk(KERN_NOTICE "o2hb: Heartbeat %s on region %s (%s)\n", + ((atomic_read(®->hr_steady_iterations) == 0) ? + "stopped" : "start aborted"), config_item_name(item), + reg->hr_dev_name); + } + /* * If we're racing a dev_write(), we need to wake them. They will * check reg->hr_task */ if (atomic_read(®->hr_steady_iterations) != 0) { + reg->hr_aborted_start = 1; atomic_set(®->hr_steady_iterations, 0); wake_up(&o2hb_steady_queue); } - if (o2hb_global_heartbeat_active()) - printk(KERN_NOTICE "o2hb: Heartbeat stopped on region %s\n", - config_item_name(®->hr_item)); - config_item_put(item); if (!o2hb_global_heartbeat_active() || !quorum_region) From 1dfecf810e0eacb35987905082f23e5c2cd26e91 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:22:54 -0700 Subject: [PATCH 006/207] ocfs2/cluster: Clean up messages in o2net o2net messages needed a facelift. Signed-off-by: Sunil Mushran --- fs/ocfs2/cluster/tcp.c | 119 ++++++++++++++++++----------------------- 1 file changed, 53 insertions(+), 66 deletions(-) diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index db5ee4b4f47a..6e97895ecf24 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -545,7 +545,7 @@ static void o2net_set_nn_state(struct o2net_node *nn, } if (was_valid && !valid) { - printk(KERN_NOTICE "o2net: no longer connected to " + printk(KERN_NOTICE "o2net: No longer connected to " SC_NODEF_FMT "\n", SC_NODEF_ARGS(old_sc)); o2net_complete_nodes_nsw(nn); } @@ -555,7 +555,7 @@ static void o2net_set_nn_state(struct o2net_node *nn, cancel_delayed_work(&nn->nn_connect_expired); printk(KERN_NOTICE "o2net: %s " SC_NODEF_FMT "\n", o2nm_this_node() > sc->sc_node->nd_num ? - "connected to" : "accepted connection from", + "Connected to" : "Accepted connection from", SC_NODEF_ARGS(sc)); } @@ -643,7 +643,7 @@ static void o2net_state_change(struct sock *sk) o2net_sc_queue_work(sc, &sc->sc_connect_work); break; default: - printk(KERN_INFO "o2net: connection to " SC_NODEF_FMT + printk(KERN_INFO "o2net: Connection to " SC_NODEF_FMT " shutdown, state %d\n", SC_NODEF_ARGS(sc), sk->sk_state); o2net_sc_queue_work(sc, &sc->sc_shutdown_work); @@ -1284,11 +1284,11 @@ static int o2net_check_handshake(struct o2net_sock_container *sc) struct o2net_node *nn = o2net_nn_from_num(sc->sc_node->nd_num); if (hand->protocol_version != cpu_to_be64(O2NET_PROTOCOL_VERSION)) { - mlog(ML_NOTICE, SC_NODEF_FMT " advertised net protocol " - "version %llu but %llu is required, disconnecting\n", - SC_NODEF_ARGS(sc), - (unsigned long long)be64_to_cpu(hand->protocol_version), - O2NET_PROTOCOL_VERSION); + printk(KERN_NOTICE "o2net: " SC_NODEF_FMT " Advertised net " + "protocol version %llu but %llu is required. " + "Disconnecting.\n", SC_NODEF_ARGS(sc), + (unsigned long long)be64_to_cpu(hand->protocol_version), + O2NET_PROTOCOL_VERSION); /* don't bother reconnecting if its the wrong version. */ o2net_ensure_shutdown(nn, sc, -ENOTCONN); @@ -1302,33 +1302,33 @@ static int o2net_check_handshake(struct o2net_sock_container *sc) */ if (be32_to_cpu(hand->o2net_idle_timeout_ms) != o2net_idle_timeout()) { - mlog(ML_NOTICE, SC_NODEF_FMT " uses a network idle timeout of " - "%u ms, but we use %u ms locally. disconnecting\n", - SC_NODEF_ARGS(sc), - be32_to_cpu(hand->o2net_idle_timeout_ms), - o2net_idle_timeout()); + printk(KERN_NOTICE "o2net: " SC_NODEF_FMT " uses a network " + "idle timeout of %u ms, but we use %u ms locally. " + "Disconnecting.\n", SC_NODEF_ARGS(sc), + be32_to_cpu(hand->o2net_idle_timeout_ms), + o2net_idle_timeout()); o2net_ensure_shutdown(nn, sc, -ENOTCONN); return -1; } if (be32_to_cpu(hand->o2net_keepalive_delay_ms) != o2net_keepalive_delay()) { - mlog(ML_NOTICE, SC_NODEF_FMT " uses a keepalive delay of " - "%u ms, but we use %u ms locally. disconnecting\n", - SC_NODEF_ARGS(sc), - be32_to_cpu(hand->o2net_keepalive_delay_ms), - o2net_keepalive_delay()); + printk(KERN_NOTICE "o2net: " SC_NODEF_FMT " uses a keepalive " + "delay of %u ms, but we use %u ms locally. " + "Disconnecting.\n", SC_NODEF_ARGS(sc), + be32_to_cpu(hand->o2net_keepalive_delay_ms), + o2net_keepalive_delay()); o2net_ensure_shutdown(nn, sc, -ENOTCONN); return -1; } if (be32_to_cpu(hand->o2hb_heartbeat_timeout_ms) != O2HB_MAX_WRITE_TIMEOUT_MS) { - mlog(ML_NOTICE, SC_NODEF_FMT " uses a heartbeat timeout of " - "%u ms, but we use %u ms locally. disconnecting\n", - SC_NODEF_ARGS(sc), - be32_to_cpu(hand->o2hb_heartbeat_timeout_ms), - O2HB_MAX_WRITE_TIMEOUT_MS); + printk(KERN_NOTICE "o2net: " SC_NODEF_FMT " uses a heartbeat " + "timeout of %u ms, but we use %u ms locally. " + "Disconnecting.\n", SC_NODEF_ARGS(sc), + be32_to_cpu(hand->o2hb_heartbeat_timeout_ms), + O2HB_MAX_WRITE_TIMEOUT_MS); o2net_ensure_shutdown(nn, sc, -ENOTCONN); return -1; } @@ -1539,28 +1539,16 @@ static void o2net_idle_timer(unsigned long data) { struct o2net_sock_container *sc = (struct o2net_sock_container *)data; struct o2net_node *nn = o2net_nn_from_num(sc->sc_node->nd_num); - #ifdef CONFIG_DEBUG_FS - ktime_t now = ktime_get(); + unsigned long msecs = ktime_to_ms(ktime_get()) - + ktime_to_ms(sc->sc_tv_timer); +#else + unsigned long msecs = o2net_idle_timeout(); #endif - printk(KERN_NOTICE "o2net: connection to " SC_NODEF_FMT " has been idle for %u.%u " - "seconds, shutting it down.\n", SC_NODEF_ARGS(sc), - o2net_idle_timeout() / 1000, - o2net_idle_timeout() % 1000); - -#ifdef CONFIG_DEBUG_FS - mlog(ML_NOTICE, "Here are some times that might help debug the " - "situation: (Timer: %lld, Now %lld, DataReady %lld, Advance %lld-%lld, " - "Key 0x%08x, Func %u, FuncTime %lld-%lld)\n", - (long long)ktime_to_us(sc->sc_tv_timer), (long long)ktime_to_us(now), - (long long)ktime_to_us(sc->sc_tv_data_ready), - (long long)ktime_to_us(sc->sc_tv_advance_start), - (long long)ktime_to_us(sc->sc_tv_advance_stop), - sc->sc_msg_key, sc->sc_msg_type, - (long long)ktime_to_us(sc->sc_tv_func_start), - (long long)ktime_to_us(sc->sc_tv_func_stop)); -#endif + printk(KERN_NOTICE "o2net: Connection to " SC_NODEF_FMT " has been " + "idle for %lu.%lu secs, shutting it down.\n", SC_NODEF_ARGS(sc), + msecs / 1000, msecs % 1000); /* * Initialize the nn_timeout so that the next connection attempt @@ -1693,8 +1681,8 @@ static void o2net_start_connect(struct work_struct *work) out: if (ret) { - mlog(ML_NOTICE, "connect attempt to " SC_NODEF_FMT " failed " - "with errno %d\n", SC_NODEF_ARGS(sc), ret); + printk(KERN_NOTICE "o2net: Connect attempt to " SC_NODEF_FMT + " failed with errno %d\n", SC_NODEF_ARGS(sc), ret); /* 0 err so that another will be queued and attempted * from set_nn_state */ if (sc) @@ -1717,8 +1705,8 @@ static void o2net_connect_expired(struct work_struct *work) spin_lock(&nn->nn_lock); if (!nn->nn_sc_valid) { - mlog(ML_ERROR, "no connection established with node %u after " - "%u.%u seconds, giving up and returning errors.\n", + printk(KERN_NOTICE "o2net: No connection established with " + "node %u after %u.%u seconds, giving up.\n", o2net_num_from_nn(nn), o2net_idle_timeout() / 1000, o2net_idle_timeout() % 1000); @@ -1861,21 +1849,21 @@ static int o2net_accept_one(struct socket *sock) node = o2nm_get_node_by_ip(sin.sin_addr.s_addr); if (node == NULL) { - mlog(ML_NOTICE, "attempt to connect from unknown node at %pI4:%d\n", - &sin.sin_addr.s_addr, ntohs(sin.sin_port)); + printk(KERN_NOTICE "o2net: Attempt to connect from unknown " + "node at %pI4:%d\n", &sin.sin_addr.s_addr, + ntohs(sin.sin_port)); ret = -EINVAL; goto out; } if (o2nm_this_node() >= node->nd_num) { local_node = o2nm_get_node_by_num(o2nm_this_node()); - mlog(ML_NOTICE, "unexpected connect attempt seen at node '%s' (" - "%u, %pI4:%d) from node '%s' (%u, %pI4:%d)\n", - local_node->nd_name, local_node->nd_num, - &(local_node->nd_ipv4_address), - ntohs(local_node->nd_ipv4_port), - node->nd_name, node->nd_num, &sin.sin_addr.s_addr, - ntohs(sin.sin_port)); + printk(KERN_NOTICE "o2net: Unexpected connect attempt seen " + "at node '%s' (%u, %pI4:%d) from node '%s' (%u, " + "%pI4:%d)\n", local_node->nd_name, local_node->nd_num, + &(local_node->nd_ipv4_address), + ntohs(local_node->nd_ipv4_port), node->nd_name, + node->nd_num, &sin.sin_addr.s_addr, ntohs(sin.sin_port)); ret = -EINVAL; goto out; } @@ -1900,10 +1888,10 @@ static int o2net_accept_one(struct socket *sock) ret = 0; spin_unlock(&nn->nn_lock); if (ret) { - mlog(ML_NOTICE, "attempt to connect from node '%s' at " - "%pI4:%d but it already has an open connection\n", - node->nd_name, &sin.sin_addr.s_addr, - ntohs(sin.sin_port)); + printk(KERN_NOTICE "o2net: Attempt to connect from node '%s' " + "at %pI4:%d but it already has an open connection\n", + node->nd_name, &sin.sin_addr.s_addr, + ntohs(sin.sin_port)); goto out; } @@ -1983,7 +1971,7 @@ static int o2net_open_listening_sock(__be32 addr, __be16 port) ret = sock_create(PF_INET, SOCK_STREAM, IPPROTO_TCP, &sock); if (ret < 0) { - mlog(ML_ERROR, "unable to create socket, ret=%d\n", ret); + printk(KERN_ERR "o2net: Error %d while creating socket\n", ret); goto out; } @@ -2000,16 +1988,15 @@ static int o2net_open_listening_sock(__be32 addr, __be16 port) sock->sk->sk_reuse = 1; ret = sock->ops->bind(sock, (struct sockaddr *)&sin, sizeof(sin)); if (ret < 0) { - mlog(ML_ERROR, "unable to bind socket at %pI4:%u, " - "ret=%d\n", &addr, ntohs(port), ret); + printk(KERN_ERR "o2net: Error %d while binding socket at " + "%pI4:%u\n", ret, &addr, ntohs(port)); goto out; } ret = sock->ops->listen(sock, 64); - if (ret < 0) { - mlog(ML_ERROR, "unable to listen on %pI4:%u, ret=%d\n", - &addr, ntohs(port), ret); - } + if (ret < 0) + printk(KERN_ERR "o2net: Error %d while listening on %pI4:%u\n", + ret, &addr, ntohs(port)); out: if (ret) { From 8decab3c8dadcdf4f54ffb30df6e6f67b398b6e0 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:23:54 -0700 Subject: [PATCH 007/207] ocfs2/dlm: Clean up messages in o2dlm o2dlm messages needed a facelift. Signed-off-by: Sunil Mushran --- fs/ocfs2/dlm/dlmdomain.c | 18 +++++++------ fs/ocfs2/dlm/dlmlock.c | 22 +++++++--------- fs/ocfs2/dlm/dlmmaster.c | 46 +++++++++++++++------------------ fs/ocfs2/dlm/dlmrecovery.c | 53 ++++++++++++++++++++++---------------- fs/ocfs2/dlm/dlmthread.c | 2 -- 5 files changed, 71 insertions(+), 70 deletions(-) diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 6ed6b95dcf93..ce225fb0cea7 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -539,17 +539,17 @@ static void dlm_mark_domain_leaving(struct dlm_ctxt *dlm) static void __dlm_print_nodes(struct dlm_ctxt *dlm) { - int node = -1; + int node = -1, num = 0; assert_spin_locked(&dlm->spinlock); - printk(KERN_NOTICE "o2dlm: Nodes in domain %s: ", dlm->name); - + printk("( "); while ((node = find_next_bit(dlm->domain_map, O2NM_MAX_NODES, node + 1)) < O2NM_MAX_NODES) { printk("%d ", node); + ++num; } - printk("\n"); + printk(") %u nodes\n", num); } static int dlm_exit_domain_handler(struct o2net_msg *msg, u32 len, void *data, @@ -566,11 +566,10 @@ static int dlm_exit_domain_handler(struct o2net_msg *msg, u32 len, void *data, node = exit_msg->node_idx; - printk(KERN_NOTICE "o2dlm: Node %u leaves domain %s\n", node, dlm->name); - spin_lock(&dlm->spinlock); clear_bit(node, dlm->domain_map); clear_bit(node, dlm->exit_domain_map); + printk(KERN_NOTICE "o2dlm: Node %u leaves domain %s ", node, dlm->name); __dlm_print_nodes(dlm); /* notify anything attached to the heartbeat events */ @@ -755,6 +754,7 @@ void dlm_unregister_domain(struct dlm_ctxt *dlm) dlm_mark_domain_leaving(dlm); dlm_leave_domain(dlm); + printk(KERN_NOTICE "o2dlm: Leaving domain %s\n", dlm->name); dlm_force_free_mles(dlm); dlm_complete_dlm_shutdown(dlm); } @@ -970,7 +970,7 @@ static int dlm_assert_joined_handler(struct o2net_msg *msg, u32 len, void *data, clear_bit(assert->node_idx, dlm->exit_domain_map); __dlm_set_joining_node(dlm, DLM_LOCK_RES_OWNER_UNKNOWN); - printk(KERN_NOTICE "o2dlm: Node %u joins domain %s\n", + printk(KERN_NOTICE "o2dlm: Node %u joins domain %s ", assert->node_idx, dlm->name); __dlm_print_nodes(dlm); @@ -1701,8 +1701,10 @@ static int dlm_try_to_join_domain(struct dlm_ctxt *dlm) bail: spin_lock(&dlm->spinlock); __dlm_set_joining_node(dlm, DLM_LOCK_RES_OWNER_UNKNOWN); - if (!status) + if (!status) { + printk(KERN_NOTICE "o2dlm: Joining domain %s ", dlm->name); __dlm_print_nodes(dlm); + } spin_unlock(&dlm->spinlock); if (ctxt) { diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index 8d39e0fd66f7..c7f3e22bda1e 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -319,27 +319,23 @@ static enum dlm_status dlm_send_remote_lock_request(struct dlm_ctxt *dlm, tmpret = o2net_send_message(DLM_CREATE_LOCK_MSG, dlm->key, &create, sizeof(create), res->owner, &status); if (tmpret >= 0) { - // successfully sent and received - ret = status; // this is already a dlm_status + ret = status; if (ret == DLM_REJECTED) { - mlog(ML_ERROR, "%s:%.*s: BUG. this is a stale lockres " - "no longer owned by %u. that node is coming back " - "up currently.\n", dlm->name, create.namelen, + mlog(ML_ERROR, "%s: res %.*s, Stale lockres no longer " + "owned by node %u. That node is coming back up " + "currently.\n", dlm->name, create.namelen, create.name, res->owner); dlm_print_one_lock_resource(res); BUG(); } } else { - mlog(ML_ERROR, "Error %d when sending message %u (key 0x%x) to " - "node %u\n", tmpret, DLM_CREATE_LOCK_MSG, dlm->key, - res->owner); - if (dlm_is_host_down(tmpret)) { + mlog(ML_ERROR, "%s: res %.*s, Error %d send CREATE LOCK to " + "node %u\n", dlm->name, create.namelen, create.name, + tmpret, res->owner); + if (dlm_is_host_down(tmpret)) ret = DLM_RECOVERING; - mlog(0, "node %u died so returning DLM_RECOVERING " - "from lock message!\n", res->owner); - } else { + else ret = dlm_err_to_dlm_status(tmpret); - } } return ret; diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index 11eefb8c12e9..9f3b093b629a 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -829,8 +829,8 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, * but they might own this lockres. wait on them. */ bit = find_next_bit(dlm->recovery_map, O2NM_MAX_NODES, 0); if (bit < O2NM_MAX_NODES) { - mlog(ML_NOTICE, "%s:%.*s: at least one node (%d) to " - "recover before lock mastery can begin\n", + mlog(0, "%s: res %.*s, At least one node (%d) " + "to recover before lock mastery can begin\n", dlm->name, namelen, (char *)lockid, bit); wait_on_recovery = 1; } @@ -864,8 +864,8 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, * dlm spinlock would be detectable be a change on the mle, * so we only need to clear out the recovery map once. */ if (dlm_is_recovery_lock(lockid, namelen)) { - mlog(ML_NOTICE, "%s: recovery map is not empty, but " - "must master $RECOVERY lock now\n", dlm->name); + mlog(0, "%s: Recovery map is not empty, but must " + "master $RECOVERY lock now\n", dlm->name); if (!dlm_pre_master_reco_lockres(dlm, res)) wait_on_recovery = 0; else { @@ -883,8 +883,8 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, spin_lock(&dlm->spinlock); bit = find_next_bit(dlm->recovery_map, O2NM_MAX_NODES, 0); if (bit < O2NM_MAX_NODES) { - mlog(ML_NOTICE, "%s:%.*s: at least one node (%d) to " - "recover before lock mastery can begin\n", + mlog(0, "%s: res %.*s, At least one node (%d) " + "to recover before lock mastery can begin\n", dlm->name, namelen, (char *)lockid, bit); wait_on_recovery = 1; } else @@ -913,8 +913,8 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, * yet, keep going until it does. this is how the * master will know that asserts are needed back to * the lower nodes. */ - mlog(0, "%s:%.*s: requests only up to %u but master " - "is %u, keep going\n", dlm->name, namelen, + mlog(0, "%s: res %.*s, Requests only up to %u but " + "master is %u, keep going\n", dlm->name, namelen, lockid, nodenum, mle->master); } } @@ -924,13 +924,12 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, ret = dlm_wait_for_lock_mastery(dlm, res, mle, &blocked); if (ret < 0) { wait_on_recovery = 1; - mlog(0, "%s:%.*s: node map changed, redo the " - "master request now, blocked=%d\n", - dlm->name, res->lockname.len, + mlog(0, "%s: res %.*s, Node map changed, redo the master " + "request now, blocked=%d\n", dlm->name, res->lockname.len, res->lockname.name, blocked); if (++tries > 20) { - mlog(ML_ERROR, "%s:%.*s: spinning on " - "dlm_wait_for_lock_mastery, blocked=%d\n", + mlog(ML_ERROR, "%s: res %.*s, Spinning on " + "dlm_wait_for_lock_mastery, blocked = %d\n", dlm->name, res->lockname.len, res->lockname.name, blocked); dlm_print_one_lock_resource(res); @@ -940,7 +939,8 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, goto redo_request; } - mlog(0, "lockres mastered by %u\n", res->owner); + mlog(0, "%s: res %.*s, Mastered by %u\n", dlm->name, res->lockname.len, + res->lockname.name, res->owner); /* make sure we never continue without this */ BUG_ON(res->owner == O2NM_MAX_NODES); @@ -2187,8 +2187,6 @@ int dlm_drop_lockres_ref(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) namelen = res->lockname.len; BUG_ON(namelen > O2NM_MAX_NAME_LEN); - mlog(0, "%s:%.*s: sending deref to %d\n", - dlm->name, namelen, lockname, res->owner); memset(&deref, 0, sizeof(deref)); deref.node_idx = dlm->node_num; deref.namelen = namelen; @@ -2197,14 +2195,12 @@ int dlm_drop_lockres_ref(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) ret = o2net_send_message(DLM_DEREF_LOCKRES_MSG, dlm->key, &deref, sizeof(deref), res->owner, &r); if (ret < 0) - mlog(ML_ERROR, "Error %d when sending message %u (key 0x%x) to " - "node %u\n", ret, DLM_DEREF_LOCKRES_MSG, dlm->key, - res->owner); + mlog(ML_ERROR, "%s: res %.*s, error %d send DEREF to node %u\n", + dlm->name, namelen, lockname, ret, res->owner); else if (r < 0) { /* BAD. other node says I did not have a ref. */ - mlog(ML_ERROR,"while dropping ref on %s:%.*s " - "(master=%u) got %d.\n", dlm->name, namelen, - lockname, res->owner, r); + mlog(ML_ERROR, "%s: res %.*s, DEREF to node %u got %d\n", + dlm->name, namelen, lockname, res->owner, r); dlm_print_one_lock_resource(res); BUG(); } @@ -2916,9 +2912,9 @@ static int dlm_do_migrate_request(struct dlm_ctxt *dlm, &migrate, sizeof(migrate), nodenum, &status); if (ret < 0) { - mlog(ML_ERROR, "Error %d when sending message %u (key " - "0x%x) to node %u\n", ret, DLM_MIGRATE_REQUEST_MSG, - dlm->key, nodenum); + mlog(ML_ERROR, "%s: res %.*s, Error %d send " + "MIGRATE_REQUEST to node %u\n", dlm->name, + migrate.namelen, migrate.name, ret, nodenum); if (!dlm_is_host_down(ret)) { mlog(ML_ERROR, "unhandled error=%d!\n", ret); BUG(); diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 7efab6d28a21..a3c312c43b90 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -430,6 +430,8 @@ static void dlm_begin_recovery(struct dlm_ctxt *dlm) { spin_lock(&dlm->spinlock); BUG_ON(dlm->reco.state & DLM_RECO_STATE_ACTIVE); + printk(KERN_NOTICE "o2dlm: Begin recovery on domain %s for node %u\n", + dlm->name, dlm->reco.dead_node); dlm->reco.state |= DLM_RECO_STATE_ACTIVE; spin_unlock(&dlm->spinlock); } @@ -440,9 +442,18 @@ static void dlm_end_recovery(struct dlm_ctxt *dlm) BUG_ON(!(dlm->reco.state & DLM_RECO_STATE_ACTIVE)); dlm->reco.state &= ~DLM_RECO_STATE_ACTIVE; spin_unlock(&dlm->spinlock); + printk(KERN_NOTICE "o2dlm: End recovery on domain %s\n", dlm->name); wake_up(&dlm->reco.event); } +static void dlm_print_recovery_master(struct dlm_ctxt *dlm) +{ + printk(KERN_NOTICE "o2dlm: Node %u (%s) is the Recovery Master for the " + "dead node %u in domain %s\n", dlm->reco.new_master, + (dlm->node_num == dlm->reco.new_master ? "me" : "he"), + dlm->reco.dead_node, dlm->name); +} + static int dlm_do_recovery(struct dlm_ctxt *dlm) { int status = 0; @@ -505,9 +516,8 @@ static int dlm_do_recovery(struct dlm_ctxt *dlm) } mlog(0, "another node will master this recovery session.\n"); } - mlog(0, "dlm=%s (%d), new_master=%u, this node=%u, dead_node=%u\n", - dlm->name, task_pid_nr(dlm->dlm_reco_thread_task), dlm->reco.new_master, - dlm->node_num, dlm->reco.dead_node); + + dlm_print_recovery_master(dlm); /* it is safe to start everything back up here * because all of the dead node's lock resources @@ -518,15 +528,13 @@ static int dlm_do_recovery(struct dlm_ctxt *dlm) return 0; master_here: - mlog(ML_NOTICE, "(%d) Node %u is the Recovery Master for the Dead Node " - "%u for Domain %s\n", task_pid_nr(dlm->dlm_reco_thread_task), - dlm->node_num, dlm->reco.dead_node, dlm->name); + dlm_print_recovery_master(dlm); status = dlm_remaster_locks(dlm, dlm->reco.dead_node); if (status < 0) { /* we should never hit this anymore */ - mlog(ML_ERROR, "error %d remastering locks for node %u, " - "retrying.\n", status, dlm->reco.dead_node); + mlog(ML_ERROR, "%s: Error %d remastering locks for node %u, " + "retrying.\n", dlm->name, status, dlm->reco.dead_node); /* yield a bit to allow any final network messages * to get handled on remaining nodes */ msleep(100); @@ -567,7 +575,7 @@ static int dlm_remaster_locks(struct dlm_ctxt *dlm, u8 dead_node) BUG_ON(ndata->state != DLM_RECO_NODE_DATA_INIT); ndata->state = DLM_RECO_NODE_DATA_REQUESTING; - mlog(0, "requesting lock info from node %u\n", + mlog(0, "%s: Requesting lock info from node %u\n", dlm->name, ndata->node_num); if (ndata->node_num == dlm->node_num) { @@ -640,7 +648,7 @@ static int dlm_remaster_locks(struct dlm_ctxt *dlm, u8 dead_node) spin_unlock(&dlm_reco_state_lock); } - mlog(0, "done requesting all lock info\n"); + mlog(0, "%s: Done requesting all lock info\n", dlm->name); /* nodes should be sending reco data now * just need to wait */ @@ -802,10 +810,9 @@ static int dlm_request_all_locks(struct dlm_ctxt *dlm, u8 request_from, /* negative status is handled by caller */ if (ret < 0) - mlog(ML_ERROR, "Error %d when sending message %u (key " - "0x%x) to node %u\n", ret, DLM_LOCK_REQUEST_MSG, - dlm->key, request_from); - + mlog(ML_ERROR, "%s: Error %d send LOCK_REQUEST to node %u " + "to recover dead node %u\n", dlm->name, ret, + request_from, dead_node); // return from here, then // sleep until all received or error return ret; @@ -956,9 +963,9 @@ static int dlm_send_all_done_msg(struct dlm_ctxt *dlm, u8 dead_node, u8 send_to) ret = o2net_send_message(DLM_RECO_DATA_DONE_MSG, dlm->key, &done_msg, sizeof(done_msg), send_to, &tmpret); if (ret < 0) { - mlog(ML_ERROR, "Error %d when sending message %u (key " - "0x%x) to node %u\n", ret, DLM_RECO_DATA_DONE_MSG, - dlm->key, send_to); + mlog(ML_ERROR, "%s: Error %d send RECO_DATA_DONE to node %u " + "to recover dead node %u\n", dlm->name, ret, send_to, + dead_node); if (!dlm_is_host_down(ret)) { BUG(); } @@ -1127,9 +1134,11 @@ static int dlm_send_mig_lockres_msg(struct dlm_ctxt *dlm, if (ret < 0) { /* XXX: negative status is not handled. * this will end up killing this node. */ - mlog(ML_ERROR, "Error %d when sending message %u (key " - "0x%x) to node %u\n", ret, DLM_MIG_LOCKRES_MSG, - dlm->key, send_to); + mlog(ML_ERROR, "%s: res %.*s, Error %d send MIG_LOCKRES to " + "node %u (%s)\n", dlm->name, mres->lockname_len, + mres->lockname, ret, send_to, + (orig_flags & DLM_MRES_MIGRATION ? + "migration" : "recovery")); } else { /* might get an -ENOMEM back here */ ret = status; @@ -2324,9 +2333,9 @@ static void dlm_do_local_recovery_cleanup(struct dlm_ctxt *dlm, u8 dead_node) dlm_revalidate_lvb(dlm, res, dead_node); if (res->owner == dead_node) { if (res->state & DLM_LOCK_RES_DROPPING_REF) { - mlog(ML_NOTICE, "Ignore %.*s for " + mlog(ML_NOTICE, "%s: res %.*s, Skip " "recovery as it is being freed\n", - res->lockname.len, + dlm->name, res->lockname.len, res->lockname.name); } else dlm_move_lockres_to_recovery_list(dlm, diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c index 1d6d1d22c471..46faac20f16c 100644 --- a/fs/ocfs2/dlm/dlmthread.c +++ b/fs/ocfs2/dlm/dlmthread.c @@ -185,8 +185,6 @@ static void dlm_purge_lockres(struct dlm_ctxt *dlm, /* clear our bit from the master's refmap, ignore errors */ ret = dlm_drop_lockres_ref(dlm, res); if (ret < 0) { - mlog(ML_ERROR, "%s: deref %.*s failed %d\n", dlm->name, - res->lockname.len, res->lockname.name, ret); if (!dlm_is_host_down(ret)) BUG(); } From 394eb3d38a3ecc549cc34a3040103a9164be516b Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:24:54 -0700 Subject: [PATCH 008/207] ocfs2: Clean up messages in stack_o2cb.c o2cb messages needed a facelift. Signed-off-by: Sunil Mushran --- fs/ocfs2/stack_o2cb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index 19965b00c43c..be935d89a4e8 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c @@ -263,8 +263,8 @@ static void o2dlm_eviction_cb(int node_num, void *data) { struct ocfs2_cluster_connection *conn = data; - mlog(ML_NOTICE, "o2dlm has evicted node %d from group %.*s\n", - node_num, conn->cc_namelen, conn->cc_name); + printk(KERN_NOTICE "o2cb: o2dlm has evicted node %d from domain %.*s\n", + node_num, conn->cc_namelen, conn->cc_name); conn->cc_recovery_handler(node_num, conn->cc_recovery_data); } From 0afbba13226fcdbd4327f6b13a42f6efbb8c9caf Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:25:54 -0700 Subject: [PATCH 009/207] ocfs2/dlm: Cleanup up dlm_finish_local_lockres_recovery() dlm_finish_local_lockres_recovery() needed a facelift. Signed-off-by: Sunil Mushran --- fs/ocfs2/dlm/dlmrecovery.c | 57 +++++++++++++++++--------------------- 1 file changed, 25 insertions(+), 32 deletions(-) diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index a3c312c43b90..41e74f0e2d35 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -2093,6 +2093,9 @@ static void dlm_finish_local_lockres_recovery(struct dlm_ctxt *dlm, list_for_each_entry_safe(res, next, &dlm->reco.resources, recovering) { if (res->owner == dead_node) { + mlog(0, "%s: res %.*s, Changing owner from %u to %u\n", + dlm->name, res->lockname.len, res->lockname.name, + res->owner, new_master); list_del_init(&res->recovering); spin_lock(&res->spinlock); /* new_master has our reference from @@ -2114,40 +2117,30 @@ static void dlm_finish_local_lockres_recovery(struct dlm_ctxt *dlm, for (i = 0; i < DLM_HASH_BUCKETS; i++) { bucket = dlm_lockres_hash(dlm, i); hlist_for_each_entry(res, hash_iter, bucket, hash_node) { - if (res->state & DLM_LOCK_RES_RECOVERING) { - if (res->owner == dead_node) { - mlog(0, "(this=%u) res %.*s owner=%u " - "was not on recovering list, but " - "clearing state anyway\n", - dlm->node_num, res->lockname.len, - res->lockname.name, new_master); - } else if (res->owner == dlm->node_num) { - mlog(0, "(this=%u) res %.*s owner=%u " - "was not on recovering list, " - "owner is THIS node, clearing\n", - dlm->node_num, res->lockname.len, - res->lockname.name, new_master); - } else - continue; + if (!(res->state & DLM_LOCK_RES_RECOVERING)) + continue; - if (!list_empty(&res->recovering)) { - mlog(0, "%s:%.*s: lockres was " - "marked RECOVERING, owner=%u\n", - dlm->name, res->lockname.len, - res->lockname.name, res->owner); - list_del_init(&res->recovering); - dlm_lockres_put(res); - } - spin_lock(&res->spinlock); - /* new_master has our reference from - * the lock state sent during recovery */ - dlm_change_lockres_owner(dlm, res, new_master); - res->state &= ~DLM_LOCK_RES_RECOVERING; - if (__dlm_lockres_has_locks(res)) - __dlm_dirty_lockres(dlm, res); - spin_unlock(&res->spinlock); - wake_up(&res->wq); + if (res->owner != dead_node && + res->owner != dlm->node_num) + continue; + + if (!list_empty(&res->recovering)) { + list_del_init(&res->recovering); + dlm_lockres_put(res); } + + /* new_master has our reference from + * the lock state sent during recovery */ + mlog(0, "%s: res %.*s, Changing owner from %u to %u\n", + dlm->name, res->lockname.len, res->lockname.name, + res->owner, new_master); + spin_lock(&res->spinlock); + dlm_change_lockres_owner(dlm, res, new_master); + res->state &= ~DLM_LOCK_RES_RECOVERING; + if (__dlm_lockres_has_locks(res)) + __dlm_dirty_lockres(dlm, res); + spin_unlock(&res->spinlock); + wake_up(&res->wq); } } } From 8d400b81cc83b171ff872587723a37eb7fae9abe Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:26:54 -0700 Subject: [PATCH 010/207] ocfs2/dlm: Clean up refmap helpers Patch cleans up helpers that set/clear refmap bits and grab/drop inflight lock ref counts. Signed-off-by: Sunil Mushran --- fs/ocfs2/dlm/dlmcommon.h | 47 ++++---------------- fs/ocfs2/dlm/dlmmaster.c | 88 +++++++++++++++++++++++--------------- fs/ocfs2/dlm/dlmrecovery.c | 8 ++-- 3 files changed, 65 insertions(+), 78 deletions(-) diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index d602abb51b61..4a5d5804b130 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -902,46 +902,15 @@ struct dlm_lock_resource *dlm_new_lockres(struct dlm_ctxt *dlm, const char *name, unsigned int namelen); -#define dlm_lockres_set_refmap_bit(bit,res) \ - __dlm_lockres_set_refmap_bit(bit,res,__FILE__,__LINE__) -#define dlm_lockres_clear_refmap_bit(bit,res) \ - __dlm_lockres_clear_refmap_bit(bit,res,__FILE__,__LINE__) +void dlm_lockres_set_refmap_bit(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res, int bit); +void dlm_lockres_clear_refmap_bit(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res, int bit); -static inline void __dlm_lockres_set_refmap_bit(int bit, - struct dlm_lock_resource *res, - const char *file, - int line) -{ - //printk("%s:%d:%.*s: setting bit %d\n", file, line, - // res->lockname.len, res->lockname.name, bit); - set_bit(bit, res->refmap); -} - -static inline void __dlm_lockres_clear_refmap_bit(int bit, - struct dlm_lock_resource *res, - const char *file, - int line) -{ - //printk("%s:%d:%.*s: clearing bit %d\n", file, line, - // res->lockname.len, res->lockname.name, bit); - clear_bit(bit, res->refmap); -} - -void __dlm_lockres_drop_inflight_ref(struct dlm_ctxt *dlm, - struct dlm_lock_resource *res, - const char *file, - int line); -void __dlm_lockres_grab_inflight_ref(struct dlm_ctxt *dlm, - struct dlm_lock_resource *res, - int new_lockres, - const char *file, - int line); -#define dlm_lockres_drop_inflight_ref(d,r) \ - __dlm_lockres_drop_inflight_ref(d,r,__FILE__,__LINE__) -#define dlm_lockres_grab_inflight_ref(d,r) \ - __dlm_lockres_grab_inflight_ref(d,r,0,__FILE__,__LINE__) -#define dlm_lockres_grab_inflight_ref_new(d,r) \ - __dlm_lockres_grab_inflight_ref(d,r,1,__FILE__,__LINE__) +void dlm_lockres_drop_inflight_ref(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res); +void dlm_lockres_grab_inflight_ref(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res); void dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock); void dlm_queue_bast(struct dlm_ctxt *dlm, struct dlm_lock *lock); diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index 9f3b093b629a..11e446ffb67a 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -631,39 +631,58 @@ struct dlm_lock_resource *dlm_new_lockres(struct dlm_ctxt *dlm, return NULL; } -void __dlm_lockres_grab_inflight_ref(struct dlm_ctxt *dlm, - struct dlm_lock_resource *res, - int new_lockres, - const char *file, - int line) +void dlm_lockres_set_refmap_bit(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res, int bit) { - if (!new_lockres) - assert_spin_locked(&res->spinlock); + assert_spin_locked(&res->spinlock); + + mlog(0, "res %.*s, set node %u, %ps()\n", res->lockname.len, + res->lockname.name, bit, __builtin_return_address(0)); + + set_bit(bit, res->refmap); +} + +void dlm_lockres_clear_refmap_bit(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res, int bit) +{ + assert_spin_locked(&res->spinlock); + + mlog(0, "res %.*s, clr node %u, %ps()\n", res->lockname.len, + res->lockname.name, bit, __builtin_return_address(0)); + + clear_bit(bit, res->refmap); +} + + +void dlm_lockres_grab_inflight_ref(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res) +{ + assert_spin_locked(&res->spinlock); if (!test_bit(dlm->node_num, res->refmap)) { BUG_ON(res->inflight_locks != 0); - dlm_lockres_set_refmap_bit(dlm->node_num, res); + dlm_lockres_set_refmap_bit(dlm, res, dlm->node_num); } res->inflight_locks++; - mlog(0, "%s:%.*s: inflight++: now %u\n", - dlm->name, res->lockname.len, res->lockname.name, - res->inflight_locks); + mlog(0, "%s: res %.*s, inflight++: now %u, %ps()\n", dlm->name, + res->lockname.len, res->lockname.name, res->inflight_locks, + __builtin_return_address(0)); } -void __dlm_lockres_drop_inflight_ref(struct dlm_ctxt *dlm, - struct dlm_lock_resource *res, - const char *file, - int line) +void dlm_lockres_drop_inflight_ref(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res) { assert_spin_locked(&res->spinlock); BUG_ON(res->inflight_locks == 0); + res->inflight_locks--; - mlog(0, "%s:%.*s: inflight--: now %u\n", - dlm->name, res->lockname.len, res->lockname.name, - res->inflight_locks); + mlog(0, "%s: res %.*s, inflight--: now %u, %ps()\n", dlm->name, + res->lockname.len, res->lockname.name, res->inflight_locks, + __builtin_return_address(0)); + if (res->inflight_locks == 0) - dlm_lockres_clear_refmap_bit(dlm->node_num, res); + dlm_lockres_clear_refmap_bit(dlm, res, dlm->node_num); wake_up(&res->wq); } @@ -843,8 +862,10 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, /* finally add the lockres to its hash bucket */ __dlm_insert_lockres(dlm, res); - /* since this lockres is new it doesn't not require the spinlock */ - dlm_lockres_grab_inflight_ref_new(dlm, res); + + spin_lock(&res->spinlock); + dlm_lockres_grab_inflight_ref(dlm, res); + spin_unlock(&res->spinlock); /* if this node does not become the master make sure to drop * this inflight reference below */ @@ -1426,9 +1447,7 @@ int dlm_master_request_handler(struct o2net_msg *msg, u32 len, void *data, } if (res->owner == dlm->node_num) { - mlog(0, "%s:%.*s: setting bit %u in refmap\n", - dlm->name, namelen, name, request->node_idx); - dlm_lockres_set_refmap_bit(request->node_idx, res); + dlm_lockres_set_refmap_bit(dlm, res, request->node_idx); spin_unlock(&res->spinlock); response = DLM_MASTER_RESP_YES; if (mle) @@ -1493,10 +1512,8 @@ int dlm_master_request_handler(struct o2net_msg *msg, u32 len, void *data, * go back and clean the mles on any * other nodes */ dispatch_assert = 1; - dlm_lockres_set_refmap_bit(request->node_idx, res); - mlog(0, "%s:%.*s: setting bit %u in refmap\n", - dlm->name, namelen, name, - request->node_idx); + dlm_lockres_set_refmap_bit(dlm, res, + request->node_idx); } else response = DLM_MASTER_RESP_NO; } else { @@ -1702,7 +1719,7 @@ static int dlm_do_assert_master(struct dlm_ctxt *dlm, "lockres, set the bit in the refmap\n", namelen, lockname, to); spin_lock(&res->spinlock); - dlm_lockres_set_refmap_bit(to, res); + dlm_lockres_set_refmap_bit(dlm, res, to); spin_unlock(&res->spinlock); } } @@ -2256,7 +2273,7 @@ int dlm_deref_lockres_handler(struct o2net_msg *msg, u32 len, void *data, else { BUG_ON(res->state & DLM_LOCK_RES_DROPPING_REF); if (test_bit(node, res->refmap)) { - dlm_lockres_clear_refmap_bit(node, res); + dlm_lockres_clear_refmap_bit(dlm, res, node); cleared = 1; } } @@ -2316,7 +2333,7 @@ static void dlm_deref_lockres_worker(struct dlm_work_item *item, void *data) BUG_ON(res->state & DLM_LOCK_RES_DROPPING_REF); if (test_bit(node, res->refmap)) { __dlm_wait_on_lockres_flags(res, DLM_LOCK_RES_SETREF_INPROG); - dlm_lockres_clear_refmap_bit(node, res); + dlm_lockres_clear_refmap_bit(dlm, res, node); cleared = 1; } spin_unlock(&res->spinlock); @@ -2798,7 +2815,8 @@ static void dlm_remove_nonlocal_locks(struct dlm_ctxt *dlm, BUG_ON(!list_empty(&lock->bast_list)); BUG_ON(lock->ast_pending); BUG_ON(lock->bast_pending); - dlm_lockres_clear_refmap_bit(lock->ml.node, res); + dlm_lockres_clear_refmap_bit(dlm, res, + lock->ml.node); list_del_init(&lock->list); dlm_lock_put(lock); /* In a normal unlock, we would have added a @@ -2819,7 +2837,7 @@ static void dlm_remove_nonlocal_locks(struct dlm_ctxt *dlm, mlog(0, "%s:%.*s: node %u had a ref to this " "migrating lockres, clearing\n", dlm->name, res->lockname.len, res->lockname.name, bit); - dlm_lockres_clear_refmap_bit(bit, res); + dlm_lockres_clear_refmap_bit(dlm, res, bit); } bit++; } @@ -2933,7 +2951,7 @@ static int dlm_do_migrate_request(struct dlm_ctxt *dlm, dlm->name, res->lockname.len, res->lockname.name, nodenum); spin_lock(&res->spinlock); - dlm_lockres_set_refmap_bit(nodenum, res); + dlm_lockres_set_refmap_bit(dlm, res, nodenum); spin_unlock(&res->spinlock); } } @@ -3267,7 +3285,7 @@ int dlm_finish_migration(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, * mastery reference here since old_master will briefly have * a reference after the migration completes */ spin_lock(&res->spinlock); - dlm_lockres_set_refmap_bit(old_master, res); + dlm_lockres_set_refmap_bit(dlm, res, old_master); spin_unlock(&res->spinlock); mlog(0, "now time to do a migrate request to other nodes\n"); diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 41e74f0e2d35..f1a3aa84ad89 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -1776,7 +1776,7 @@ static int dlm_process_recovery_data(struct dlm_ctxt *dlm, dlm->name, mres->lockname_len, mres->lockname, from); spin_lock(&res->spinlock); - dlm_lockres_set_refmap_bit(from, res); + dlm_lockres_set_refmap_bit(dlm, res, from); spin_unlock(&res->spinlock); added++; break; @@ -1974,7 +1974,7 @@ static int dlm_process_recovery_data(struct dlm_ctxt *dlm, mlog(0, "%s:%.*s: added lock for node %u, " "setting refmap bit\n", dlm->name, res->lockname.len, res->lockname.name, ml->node); - dlm_lockres_set_refmap_bit(ml->node, res); + dlm_lockres_set_refmap_bit(dlm, res, ml->node); added++; } spin_unlock(&res->spinlock); @@ -2254,12 +2254,12 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm, res->lockname.len, res->lockname.name, freed, dead_node); __dlm_print_one_lock_resource(res); } - dlm_lockres_clear_refmap_bit(dead_node, res); + dlm_lockres_clear_refmap_bit(dlm, res, dead_node); } else if (test_bit(dead_node, res->refmap)) { mlog(0, "%s:%.*s: dead node %u had a ref, but had " "no locks and had not purged before dying\n", dlm->name, res->lockname.len, res->lockname.name, dead_node); - dlm_lockres_clear_refmap_bit(dead_node, res); + dlm_lockres_clear_refmap_bit(dlm, res, dead_node); } /* do not kick thread yet */ From e9f0b6a6233105c188064328c3f15e21942d0241 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:27:54 -0700 Subject: [PATCH 011/207] ocfs2/dlm: Trace insert/remove of resource to/from hash Add mlog to trace adding and removing the resource from/to the hash table. Signed-off-by: Sunil Mushran --- fs/ocfs2/dlm/dlmcommon.h | 5 ++--- fs/ocfs2/dlm/dlmdomain.c | 19 ++++++++++++------- fs/ocfs2/dlm/dlmthread.c | 2 +- 3 files changed, 15 insertions(+), 11 deletions(-) diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index 4a5d5804b130..b1748ac74751 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -877,9 +877,8 @@ static inline void dlm_lockres_get(struct dlm_lock_resource *res) kref_get(&res->refs); } void dlm_lockres_put(struct dlm_lock_resource *res); -void __dlm_unhash_lockres(struct dlm_lock_resource *res); -void __dlm_insert_lockres(struct dlm_ctxt *dlm, - struct dlm_lock_resource *res); +void __dlm_unhash_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res); +void __dlm_insert_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res); struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm, const char *name, unsigned int len, diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index ce225fb0cea7..200d9888ffee 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -157,16 +157,18 @@ static int dlm_protocol_compare(struct dlm_protocol_version *existing, static void dlm_unregister_domain_handlers(struct dlm_ctxt *dlm); -void __dlm_unhash_lockres(struct dlm_lock_resource *lockres) +void __dlm_unhash_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) { - if (!hlist_unhashed(&lockres->hash_node)) { - hlist_del_init(&lockres->hash_node); - dlm_lockres_put(lockres); - } + if (hlist_unhashed(&res->hash_node)) + return; + + mlog(0, "%s: Unhash res %.*s\n", dlm->name, res->lockname.len, + res->lockname.name); + hlist_del_init(&res->hash_node); + dlm_lockres_put(res); } -void __dlm_insert_lockres(struct dlm_ctxt *dlm, - struct dlm_lock_resource *res) +void __dlm_insert_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res) { struct hlist_head *bucket; struct qstr *q; @@ -180,6 +182,9 @@ void __dlm_insert_lockres(struct dlm_ctxt *dlm, dlm_lockres_get(res); hlist_add_head(&res->hash_node, bucket); + + mlog(0, "%s: Hash res %.*s\n", dlm->name, res->lockname.len, + res->lockname.name); } struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm, diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c index 46faac20f16c..4eff65e7e59e 100644 --- a/fs/ocfs2/dlm/dlmthread.c +++ b/fs/ocfs2/dlm/dlmthread.c @@ -207,7 +207,7 @@ static void dlm_purge_lockres(struct dlm_ctxt *dlm, BUG(); } - __dlm_unhash_lockres(res); + __dlm_unhash_lockres(dlm, res); /* lockres is not in the hash now. drop the flag and wake up * any processes waiting in dlm_get_lock_resource. */ From ed8625c6fb93d750ed022db571a8a7b7a6724b3b Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:28:54 -0700 Subject: [PATCH 012/207] ocfs2/dlm: Cleanup dlm_wait_for_node_death() and dlm_wait_for_node_recovery() dlm_wait_for_node_death() and dlm_wait_for_node_recovery() needed a facelift. Signed-off-by: Sunil Mushran --- fs/ocfs2/dlm/dlmcommon.h | 4 ++-- fs/ocfs2/dlm/dlmrecovery.c | 46 ++++++++++++++++++-------------------- 2 files changed, 24 insertions(+), 26 deletions(-) diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index b1748ac74751..a5952ceecba5 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -859,8 +859,8 @@ void dlm_complete_recovery_thread(struct dlm_ctxt *dlm); void dlm_wait_for_recovery(struct dlm_ctxt *dlm); void dlm_kick_recovery_thread(struct dlm_ctxt *dlm); int dlm_is_node_dead(struct dlm_ctxt *dlm, u8 node); -int dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout); -int dlm_wait_for_node_recovery(struct dlm_ctxt *dlm, u8 node, int timeout); +void dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout); +void dlm_wait_for_node_recovery(struct dlm_ctxt *dlm, u8 node, int timeout); void dlm_put(struct dlm_ctxt *dlm); struct dlm_ctxt *dlm_grab(struct dlm_ctxt *dlm); diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index f1a3aa84ad89..01ebfd0bdad7 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -362,40 +362,38 @@ static int dlm_is_node_recovered(struct dlm_ctxt *dlm, u8 node) } -int dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout) +void dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout) { - if (timeout) { - mlog(ML_NOTICE, "%s: waiting %dms for notification of " - "death of node %u\n", dlm->name, timeout, node); + if (dlm_is_node_dead(dlm, node)) + return; + + printk(KERN_NOTICE "o2dlm: Waiting on the death of node %u in " + "domain %s\n", node, dlm->name); + + if (timeout) wait_event_timeout(dlm->dlm_reco_thread_wq, - dlm_is_node_dead(dlm, node), - msecs_to_jiffies(timeout)); - } else { - mlog(ML_NOTICE, "%s: waiting indefinitely for notification " - "of death of node %u\n", dlm->name, node); + dlm_is_node_dead(dlm, node), + msecs_to_jiffies(timeout)); + else wait_event(dlm->dlm_reco_thread_wq, dlm_is_node_dead(dlm, node)); - } - /* for now, return 0 */ - return 0; } -int dlm_wait_for_node_recovery(struct dlm_ctxt *dlm, u8 node, int timeout) +void dlm_wait_for_node_recovery(struct dlm_ctxt *dlm, u8 node, int timeout) { - if (timeout) { - mlog(0, "%s: waiting %dms for notification of " - "recovery of node %u\n", dlm->name, timeout, node); + if (dlm_is_node_recovered(dlm, node)) + return; + + printk(KERN_NOTICE "o2dlm: Waiting on the recovery of node %u in " + "domain %s\n", node, dlm->name); + + if (timeout) wait_event_timeout(dlm->dlm_reco_thread_wq, - dlm_is_node_recovered(dlm, node), - msecs_to_jiffies(timeout)); - } else { - mlog(0, "%s: waiting indefinitely for notification " - "of recovery of node %u\n", dlm->name, node); + dlm_is_node_recovered(dlm, node), + msecs_to_jiffies(timeout)); + else wait_event(dlm->dlm_reco_thread_wq, dlm_is_node_recovered(dlm, node)); - } - /* for now, return 0 */ - return 0; } /* callers of the top-level api calls (dlmlock/dlmunlock) should From ff0a522e7db79625aa27a433467eb94c5e255718 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:29:54 -0700 Subject: [PATCH 013/207] ocfs2/dlm: Take inflight reference count for remotely mastered resources too The inflight reference count, in the lock resource, is taken to pin the resource in memory. We take it when a new resource is created and release it after a lock is attached to it. We do this to prevent the resource from getting purged prematurely. Earlier this reference count was being taken for locally mastered resources only. This patch extends the same functionality for remotely mastered ones. We are doing this because the same premature purging could occur for remotely mastered resources if the remote node were to die before completion of the create lock. Fix for Oracle bug#12405575. Signed-off-by: Sunil Mushran --- fs/ocfs2/dlm/dlmlock.c | 12 ++++++---- fs/ocfs2/dlm/dlmmaster.c | 51 +++++++++++++++------------------------- fs/ocfs2/dlm/dlmthread.c | 12 ++++++---- 3 files changed, 34 insertions(+), 41 deletions(-) diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index c7f3e22bda1e..3ef2c1adfb8f 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -183,10 +183,6 @@ static enum dlm_status dlmlock_master(struct dlm_ctxt *dlm, kick_thread = 1; } } - /* reduce the inflight count, this may result in the lockres - * being purged below during calc_usage */ - if (lock->ml.node == dlm->node_num) - dlm_lockres_drop_inflight_ref(dlm, res); spin_unlock(&res->spinlock); wake_up(&res->wq); @@ -737,6 +733,14 @@ enum dlm_status dlmlock(struct dlm_ctxt *dlm, int mode, } } + /* Inflight taken in dlm_get_lock_resource() is dropped here */ + spin_lock(&res->spinlock); + dlm_lockres_drop_inflight_ref(dlm, res); + spin_unlock(&res->spinlock); + + dlm_lockres_calc_usage(dlm, res); + dlm_kick_thread(dlm, res); + if (status != DLM_NORMAL) { lock->lksb->flags &= ~DLM_LKSB_GET_LVB; if (status != DLM_NOTQUEUED) diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index 11e446ffb67a..005261c333b0 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -659,11 +659,8 @@ void dlm_lockres_grab_inflight_ref(struct dlm_ctxt *dlm, { assert_spin_locked(&res->spinlock); - if (!test_bit(dlm->node_num, res->refmap)) { - BUG_ON(res->inflight_locks != 0); - dlm_lockres_set_refmap_bit(dlm, res, dlm->node_num); - } res->inflight_locks++; + mlog(0, "%s: res %.*s, inflight++: now %u, %ps()\n", dlm->name, res->lockname.len, res->lockname.name, res->inflight_locks, __builtin_return_address(0)); @@ -677,12 +674,11 @@ void dlm_lockres_drop_inflight_ref(struct dlm_ctxt *dlm, BUG_ON(res->inflight_locks == 0); res->inflight_locks--; + mlog(0, "%s: res %.*s, inflight--: now %u, %ps()\n", dlm->name, res->lockname.len, res->lockname.name, res->inflight_locks, __builtin_return_address(0)); - if (res->inflight_locks == 0) - dlm_lockres_clear_refmap_bit(dlm, res, dlm->node_num); wake_up(&res->wq); } @@ -716,7 +712,6 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, unsigned int hash; int tries = 0; int bit, wait_on_recovery = 0; - int drop_inflight_if_nonlocal = 0; BUG_ON(!lockid); @@ -728,36 +723,33 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, spin_lock(&dlm->spinlock); tmpres = __dlm_lookup_lockres_full(dlm, lockid, namelen, hash); if (tmpres) { - int dropping_ref = 0; - spin_unlock(&dlm->spinlock); - spin_lock(&tmpres->spinlock); - /* We wait for the other thread that is mastering the resource */ + /* Wait on the thread that is mastering the resource */ if (tmpres->owner == DLM_LOCK_RES_OWNER_UNKNOWN) { __dlm_wait_on_lockres(tmpres); BUG_ON(tmpres->owner == DLM_LOCK_RES_OWNER_UNKNOWN); - } - - if (tmpres->owner == dlm->node_num) { - BUG_ON(tmpres->state & DLM_LOCK_RES_DROPPING_REF); - dlm_lockres_grab_inflight_ref(dlm, tmpres); - } else if (tmpres->state & DLM_LOCK_RES_DROPPING_REF) - dropping_ref = 1; - spin_unlock(&tmpres->spinlock); - - /* wait until done messaging the master, drop our ref to allow - * the lockres to be purged, start over. */ - if (dropping_ref) { - spin_lock(&tmpres->spinlock); - __dlm_wait_on_lockres_flags(tmpres, DLM_LOCK_RES_DROPPING_REF); spin_unlock(&tmpres->spinlock); dlm_lockres_put(tmpres); tmpres = NULL; goto lookup; } - mlog(0, "found in hash!\n"); + /* Wait on the resource purge to complete before continuing */ + if (tmpres->state & DLM_LOCK_RES_DROPPING_REF) { + BUG_ON(tmpres->owner == dlm->node_num); + __dlm_wait_on_lockres_flags(tmpres, + DLM_LOCK_RES_DROPPING_REF); + spin_unlock(&tmpres->spinlock); + dlm_lockres_put(tmpres); + tmpres = NULL; + goto lookup; + } + + /* Grab inflight ref to pin the resource */ + dlm_lockres_grab_inflight_ref(dlm, tmpres); + + spin_unlock(&tmpres->spinlock); if (res) dlm_lockres_put(res); res = tmpres; @@ -863,14 +855,11 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, /* finally add the lockres to its hash bucket */ __dlm_insert_lockres(dlm, res); + /* Grab inflight ref to pin the resource */ spin_lock(&res->spinlock); dlm_lockres_grab_inflight_ref(dlm, res); spin_unlock(&res->spinlock); - /* if this node does not become the master make sure to drop - * this inflight reference below */ - drop_inflight_if_nonlocal = 1; - /* get an extra ref on the mle in case this is a BLOCK * if so, the creator of the BLOCK may try to put the last * ref at this time in the assert master handler, so we @@ -973,8 +962,6 @@ struct dlm_lock_resource * dlm_get_lock_resource(struct dlm_ctxt *dlm, wake_waiters: spin_lock(&res->spinlock); - if (res->owner != dlm->node_num && drop_inflight_if_nonlocal) - dlm_lockres_drop_inflight_ref(dlm, res); res->state &= ~DLM_LOCK_RES_IN_PROGRESS; spin_unlock(&res->spinlock); wake_up(&res->wq); diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c index 4eff65e7e59e..e73c833fc2a1 100644 --- a/fs/ocfs2/dlm/dlmthread.c +++ b/fs/ocfs2/dlm/dlmthread.c @@ -94,24 +94,26 @@ int __dlm_lockres_unused(struct dlm_lock_resource *res) { int bit; + assert_spin_locked(&res->spinlock); + if (__dlm_lockres_has_locks(res)) return 0; + /* Locks are in the process of being created */ + if (res->inflight_locks) + return 0; + if (!list_empty(&res->dirty) || res->state & DLM_LOCK_RES_DIRTY) return 0; if (res->state & DLM_LOCK_RES_RECOVERING) return 0; + /* Another node has this resource with this node as the master */ bit = find_next_bit(res->refmap, O2NM_MAX_NODES, 0); if (bit < O2NM_MAX_NODES) return 0; - /* - * since the bit for dlm->node_num is not set, inflight_locks better - * be zero - */ - BUG_ON(res->inflight_locks != 0); return 1; } From a2c0cc1579176bd0808ef7deea456767dfa80217 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:30:54 -0700 Subject: [PATCH 014/207] ocfs2/dlm: dlmlock_remote() needs to account for remastery In dlmlock_remote(), we wait for the resource to stop being active before setting the inprogress flag. Active includes recovery, migration, etc. The problem here is that if the resource was being recovered or migrated, the new owner could very well be that node itself (and thus not a remote node). This problem was observed in Oracle bug#12583620. The error messages observed were as follows: dlm_send_remote_lock_request:337 ERROR: Error -40 (ELOOP) when sending message 503 (key 0xd6d8c7) to node 2 dlmlock_remote:271 ERROR: dlm status = DLM_BADARGS dlmlock:751 ERROR: dlm status = DLM_BADARGS Signed-off-by: Sunil Mushran --- fs/ocfs2/dlm/dlmlock.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index 3ef2c1adfb8f..f32fcba04923 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -227,10 +227,16 @@ static enum dlm_status dlmlock_remote(struct dlm_ctxt *dlm, lock->ml.type, res->lockname.len, res->lockname.name, flags); + /* + * Wait if resource is getting recovered, remastered, etc. + * If the resource was remastered and new owner is self, then exit. + */ spin_lock(&res->spinlock); - - /* will exit this call with spinlock held */ __dlm_wait_on_lockres(res); + if (res->owner == dlm->node_num) { + spin_unlock(&res->spinlock); + return DLM_RECOVERING; + } res->state |= DLM_LOCK_RES_IN_PROGRESS; /* add lock to local (secondary) queue */ @@ -710,18 +716,10 @@ enum dlm_status dlmlock(struct dlm_ctxt *dlm, int mode, if (status == DLM_RECOVERING || status == DLM_MIGRATING || status == DLM_FORWARD) { - mlog(0, "retrying lock with migration/" - "recovery/in progress\n"); msleep(100); - /* no waiting for dlm_reco_thread */ if (recovery) { if (status != DLM_RECOVERING) goto retry_lock; - - mlog(0, "%s: got RECOVERING " - "for $RECOVERY lock, master " - "was %u\n", dlm->name, - res->owner); /* wait to see the node go down, then * drop down and allow the lockres to * get cleaned up. need to remaster. */ From bb570a5d9e74f71d32751823052db4a97d6a5e7c Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:31:54 -0700 Subject: [PATCH 015/207] ocfs2/cluster: Fix output in file elapsed_time_in_ms The o2hb debugfs file, elapsed_time_in_ms, should return values only after the timer is armed atleast once. Signed-off-by: Sunil Mushran --- fs/ocfs2/cluster/heartbeat.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 4728a746281d..a4e855e3690e 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -1198,6 +1198,7 @@ static int o2hb_debug_open(struct inode *inode, struct file *file) struct o2hb_debug_buf *db = inode->i_private; struct o2hb_region *reg; unsigned long map[BITS_TO_LONGS(O2NM_MAX_NODES)]; + unsigned long lts; char *buf = NULL; int i = -1; int out = 0; @@ -1234,9 +1235,11 @@ static int o2hb_debug_open(struct inode *inode, struct file *file) case O2HB_DB_TYPE_REGION_ELAPSED_TIME: reg = (struct o2hb_region *)db->db_data; - out += snprintf(buf + out, PAGE_SIZE - out, "%u\n", - jiffies_to_msecs(jiffies - - reg->hr_last_timeout_start)); + lts = reg->hr_last_timeout_start; + /* If 0, it has never been set before */ + if (lts) + lts = jiffies_to_msecs(jiffies - lts); + out += snprintf(buf + out, PAGE_SIZE - out, "%lu\n", lts); goto done; case O2HB_DB_TYPE_REGION_PINNED: From 3ba169ccec1c5ad0f678e04fd29b990197fdfe79 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:32:54 -0700 Subject: [PATCH 016/207] ocfs2/cluster: Add new function o2net_fill_node_map() Patch adds function o2net_fill_node_map() to return the bitmap of nodes that it is connected to. This bitmap is also accessible by the user via the debugfs file, /sys/kernel/debug/o2net/connected_nodes. Signed-off-by: Sunil Mushran --- fs/ocfs2/cluster/netdebug.c | 102 ++++++++++++++++++++++++------------ fs/ocfs2/cluster/tcp.c | 19 +++++++ fs/ocfs2/cluster/tcp.h | 2 + 3 files changed, 90 insertions(+), 33 deletions(-) diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c index 3a5835904b3d..dc45deb19e68 100644 --- a/fs/ocfs2/cluster/netdebug.c +++ b/fs/ocfs2/cluster/netdebug.c @@ -47,6 +47,7 @@ #define SC_DEBUG_NAME "sock_containers" #define NST_DEBUG_NAME "send_tracking" #define STATS_DEBUG_NAME "stats" +#define NODES_DEBUG_NAME "connected_nodes" #define SHOW_SOCK_CONTAINERS 0 #define SHOW_SOCK_STATS 1 @@ -55,6 +56,7 @@ static struct dentry *o2net_dentry; static struct dentry *sc_dentry; static struct dentry *nst_dentry; static struct dentry *stats_dentry; +static struct dentry *nodes_dentry; static DEFINE_SPINLOCK(o2net_debug_lock); @@ -491,53 +493,87 @@ static const struct file_operations sc_seq_fops = { .release = sc_fop_release, }; -int o2net_debugfs_init(void) +static int o2net_fill_bitmap(char *buf, int len) { - o2net_dentry = debugfs_create_dir(O2NET_DEBUG_DIR, NULL); - if (!o2net_dentry) { - mlog_errno(-ENOMEM); - goto bail; - } + unsigned long map[BITS_TO_LONGS(O2NM_MAX_NODES)]; + int i = -1, out = 0; - nst_dentry = debugfs_create_file(NST_DEBUG_NAME, S_IFREG|S_IRUSR, - o2net_dentry, NULL, - &nst_seq_fops); - if (!nst_dentry) { - mlog_errno(-ENOMEM); - goto bail; - } + o2net_fill_node_map(map, sizeof(map)); - sc_dentry = debugfs_create_file(SC_DEBUG_NAME, S_IFREG|S_IRUSR, - o2net_dentry, NULL, - &sc_seq_fops); - if (!sc_dentry) { - mlog_errno(-ENOMEM); - goto bail; - } + while ((i = find_next_bit(map, O2NM_MAX_NODES, i + 1)) < O2NM_MAX_NODES) + out += snprintf(buf + out, PAGE_SIZE - out, "%d ", i); + out += snprintf(buf + out, PAGE_SIZE - out, "\n"); - stats_dentry = debugfs_create_file(STATS_DEBUG_NAME, S_IFREG|S_IRUSR, - o2net_dentry, NULL, - &stats_seq_fops); - if (!stats_dentry) { - mlog_errno(-ENOMEM); - goto bail; - } + return out; +} + +static int nodes_fop_open(struct inode *inode, struct file *file) +{ + char *buf; + + buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + i_size_write(inode, o2net_fill_bitmap(buf, PAGE_SIZE)); + + file->private_data = buf; return 0; -bail: - debugfs_remove(stats_dentry); - debugfs_remove(sc_dentry); - debugfs_remove(nst_dentry); - debugfs_remove(o2net_dentry); - return -ENOMEM; } +static int o2net_debug_release(struct inode *inode, struct file *file) +{ + kfree(file->private_data); + return 0; +} + +static ssize_t o2net_debug_read(struct file *file, char __user *buf, + size_t nbytes, loff_t *ppos) +{ + return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, + i_size_read(file->f_mapping->host)); +} + +static const struct file_operations nodes_fops = { + .open = nodes_fop_open, + .release = o2net_debug_release, + .read = o2net_debug_read, + .llseek = generic_file_llseek, +}; + void o2net_debugfs_exit(void) { + debugfs_remove(nodes_dentry); debugfs_remove(stats_dentry); debugfs_remove(sc_dentry); debugfs_remove(nst_dentry); debugfs_remove(o2net_dentry); } +int o2net_debugfs_init(void) +{ + mode_t mode = S_IFREG|S_IRUSR; + + o2net_dentry = debugfs_create_dir(O2NET_DEBUG_DIR, NULL); + if (o2net_dentry) + nst_dentry = debugfs_create_file(NST_DEBUG_NAME, mode, + o2net_dentry, NULL, &nst_seq_fops); + if (nst_dentry) + sc_dentry = debugfs_create_file(SC_DEBUG_NAME, mode, + o2net_dentry, NULL, &sc_seq_fops); + if (sc_dentry) + stats_dentry = debugfs_create_file(STATS_DEBUG_NAME, mode, + o2net_dentry, NULL, &stats_seq_fops); + if (stats_dentry) + nodes_dentry = debugfs_create_file(NODES_DEBUG_NAME, mode, + o2net_dentry, NULL, &nodes_fops); + if (nodes_dentry) + return 0; + + o2net_debugfs_exit(); + mlog_errno(-ENOMEM); + return -ENOMEM; +} + #endif /* CONFIG_DEBUG_FS */ diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index 6e97895ecf24..ae13d5ca7908 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -1034,6 +1034,25 @@ static int o2net_tx_can_proceed(struct o2net_node *nn, return ret; } +/* Get a map of all nodes to which this node is currently connected to */ +void o2net_fill_node_map(unsigned long *map, unsigned bytes) +{ + struct o2net_sock_container *sc; + int node, ret; + + BUG_ON(bytes < (BITS_TO_LONGS(O2NM_MAX_NODES) * sizeof(unsigned long))); + + memset(map, 0, bytes); + for (node = 0; node < O2NM_MAX_NODES; ++node) { + o2net_tx_can_proceed(o2net_nn_from_num(node), &sc, &ret); + if (!ret) { + set_bit(node, map); + sc_put(sc); + } + } +} +EXPORT_SYMBOL_GPL(o2net_fill_node_map); + int o2net_send_message_vec(u32 msg_type, u32 key, struct kvec *caller_vec, size_t caller_veclen, u8 target_node, int *status) { diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h index fd6179eb26d4..5bada2a69b50 100644 --- a/fs/ocfs2/cluster/tcp.h +++ b/fs/ocfs2/cluster/tcp.h @@ -106,6 +106,8 @@ int o2net_register_handler(u32 msg_type, u32 key, u32 max_len, struct list_head *unreg_list); void o2net_unregister_handler_list(struct list_head *list); +void o2net_fill_node_map(unsigned long *map, unsigned bytes); + struct o2nm_node; int o2net_register_hb_callbacks(void); void o2net_unregister_hb_callbacks(void); From 6b27f62fc750d85bc6fc3718b3b38ec60edc2d74 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:33:54 -0700 Subject: [PATCH 017/207] ocfs2/cluster: Cluster up now includes network connections too The cluster up check only checks to see if the node is heartbeating or not. If yes it continues assuming that the node is connected to all the nodes. But if that is not the case, the cluster join aborts with a stack of errors that are not easy to comprehend. This patch adds the network connect check upfront and prints the nodes that the node is not yet connected to, before aborting. Signed-off-by: Sunil Mushran --- fs/ocfs2/dlm/dlmdomain.c | 7 ----- fs/ocfs2/stack_o2cb.c | 67 ++++++++++++++++++++++++++++++++++++---- 2 files changed, 61 insertions(+), 13 deletions(-) diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 200d9888ffee..92f2ead0fab6 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -2138,13 +2138,6 @@ struct dlm_ctxt * dlm_register_domain(const char *domain, goto leave; } - if (!o2hb_check_local_node_heartbeating()) { - mlog(ML_ERROR, "the local node has not been configured, or is " - "not heartbeating\n"); - ret = -EPROTO; - goto leave; - } - mlog(0, "register called for domain \"%s\"\n", domain); retry: diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c index be935d89a4e8..94368017edb3 100644 --- a/fs/ocfs2/stack_o2cb.c +++ b/fs/ocfs2/stack_o2cb.c @@ -28,6 +28,7 @@ #include "cluster/masklog.h" #include "cluster/nodemanager.h" #include "cluster/heartbeat.h" +#include "cluster/tcp.h" #include "stackglue.h" @@ -255,6 +256,61 @@ static void o2cb_dump_lksb(struct ocfs2_dlm_lksb *lksb) dlm_print_one_lock(lksb->lksb_o2dlm.lockid); } +/* + * Check if this node is heartbeating and is connected to all other + * heartbeating nodes. + */ +static int o2cb_cluster_check(void) +{ + u8 node_num; + int i; + unsigned long hbmap[BITS_TO_LONGS(O2NM_MAX_NODES)]; + unsigned long netmap[BITS_TO_LONGS(O2NM_MAX_NODES)]; + + node_num = o2nm_this_node(); + if (node_num == O2NM_MAX_NODES) { + printk(KERN_ERR "o2cb: This node has not been configured.\n"); + return -EINVAL; + } + + /* + * o2dlm expects o2net sockets to be created. If not, then + * dlm_join_domain() fails with a stack of errors which are both cryptic + * and incomplete. The idea here is to detect upfront whether we have + * managed to connect to all nodes or not. If not, then list the nodes + * to allow the user to check the configuration (incorrect IP, firewall, + * etc.) Yes, this is racy. But its not the end of the world. + */ +#define O2CB_MAP_STABILIZE_COUNT 60 + for (i = 0; i < O2CB_MAP_STABILIZE_COUNT; ++i) { + o2hb_fill_node_map(hbmap, sizeof(hbmap)); + if (!test_bit(node_num, hbmap)) { + printk(KERN_ERR "o2cb: %s heartbeat has not been " + "started.\n", (o2hb_global_heartbeat_active() ? + "Global" : "Local")); + return -EINVAL; + } + o2net_fill_node_map(netmap, sizeof(netmap)); + /* Force set the current node to allow easy compare */ + set_bit(node_num, netmap); + if (!memcmp(hbmap, netmap, sizeof(hbmap))) + return 0; + if (i < O2CB_MAP_STABILIZE_COUNT) + msleep(1000); + } + + printk(KERN_ERR "o2cb: This node could not connect to nodes:"); + i = -1; + while ((i = find_next_bit(hbmap, O2NM_MAX_NODES, + i + 1)) < O2NM_MAX_NODES) { + if (!test_bit(i, netmap)) + printk(" %u", i); + } + printk(".\n"); + + return -ENOTCONN; +} + /* * Called from the dlm when it's about to evict a node. This is how the * classic stack signals node death. @@ -280,12 +336,11 @@ static int o2cb_cluster_connect(struct ocfs2_cluster_connection *conn) BUG_ON(conn == NULL); BUG_ON(conn->cc_proto == NULL); - /* for now we only have one cluster/node, make sure we see it - * in the heartbeat universe */ - if (!o2hb_check_local_node_heartbeating()) { - if (o2hb_global_heartbeat_active()) - mlog(ML_ERROR, "Global heartbeat not started\n"); - rc = -EINVAL; + /* Ensure cluster stack is up and all nodes are connected */ + rc = o2cb_cluster_check(); + if (rc) { + printk(KERN_ERR "o2cb: Cluster check failed. Fix errors " + "before retrying.\n"); goto out; } From 619c200de144b44f5e405305241bcd7edbb8c6cf Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:34:54 -0700 Subject: [PATCH 018/207] ocfs2: Clean up messages in the fs Convert useful messages from ML_NOTICE to KERN_NOTICE to improve readability. Signed-off-by: Sunil Mushran --- fs/ocfs2/journal.c | 9 ++++++--- fs/ocfs2/quota_local.c | 13 +++++++++---- fs/ocfs2/slot_map.c | 4 ++-- fs/ocfs2/super.c | 10 +++++----- 4 files changed, 22 insertions(+), 14 deletions(-) diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index 295d56454e8b..8eaaa7854409 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -1544,9 +1544,9 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb, /* we need to run complete recovery for offline orphan slots */ ocfs2_replay_map_set_state(osb, REPLAY_NEEDED); - mlog(ML_NOTICE, "Recovering node %d from slot %d on device (%u,%u)\n", - node_num, slot_num, - MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); + printk(KERN_NOTICE "ocfs2: Begin replay journal (node %d, slot %d) on "\ + "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), + MINOR(osb->sb->s_dev)); OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); @@ -1601,6 +1601,9 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb, jbd2_journal_destroy(journal); + printk(KERN_NOTICE "ocfs2: End replay journal (node %d, slot %d) on "\ + "device (%u,%u)\n", node_num, slot_num, MAJOR(osb->sb->s_dev), + MINOR(osb->sb->s_dev)); done: /* drop the lock on this nodes journal */ if (got_lock) diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index dc8007fc9247..942fd65bdad3 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -404,7 +404,9 @@ struct ocfs2_quota_recovery *ocfs2_begin_quota_recovery( int status = 0; struct ocfs2_quota_recovery *rec; - mlog(ML_NOTICE, "Beginning quota recovery in slot %u\n", slot_num); + printk(KERN_NOTICE "ocfs2: Beginning quota recovery on device (%s) for " + "slot %u\n", osb->dev_str, slot_num); + rec = ocfs2_alloc_quota_recovery(); if (!rec) return ERR_PTR(-ENOMEM); @@ -596,7 +598,9 @@ int ocfs2_finish_quota_recovery(struct ocfs2_super *osb, struct inode *lqinode; unsigned int flags; - mlog(ML_NOTICE, "Finishing quota recovery in slot %u\n", slot_num); + printk(KERN_NOTICE "ocfs2: Finishing quota recovery on device (%s) for " + "slot %u\n", osb->dev_str, slot_num); + mutex_lock(&sb_dqopt(sb)->dqonoff_mutex); for (type = 0; type < MAXQUOTAS; type++) { if (list_empty(&(rec->r_list[type]))) @@ -612,8 +616,9 @@ int ocfs2_finish_quota_recovery(struct ocfs2_super *osb, /* Someone else is holding the lock? Then he must be * doing the recovery. Just skip the file... */ if (status == -EAGAIN) { - mlog(ML_NOTICE, "skipping quota recovery for slot %d " - "because quota file is locked.\n", slot_num); + printk(KERN_NOTICE "ocfs2: Skipping quota recovery on " + "device (%s) for slot %d because quota file is " + "locked.\n", osb->dev_str, slot_num); status = 0; goto out_put; } else if (status < 0) { diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c index 26fc0014d509..1424c151cccc 100644 --- a/fs/ocfs2/slot_map.c +++ b/fs/ocfs2/slot_map.c @@ -493,8 +493,8 @@ int ocfs2_find_slot(struct ocfs2_super *osb) goto bail; } } else - mlog(ML_NOTICE, "slot %d is already allocated to this node!\n", - slot); + printk(KERN_INFO "ocfs2: Slot %d on device (%s) was already " + "allocated to this node!\n", slot, osb->dev_str); ocfs2_set_slot(si, slot, osb->node_num); osb->slot_num = slot; diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 56f61027236b..3e7850380d2b 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1107,9 +1107,9 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) ocfs2_set_ro_flag(osb, 1); - printk(KERN_NOTICE "Readonly device detected. No cluster " - "services will be utilized for this mount. Recovery " - "will be skipped.\n"); + printk(KERN_NOTICE "ocfs2: Readonly device (%s) detected. " + "Cluster services will not be used for this mount. " + "Recovery will be skipped.\n", osb->dev_str); } if (!ocfs2_is_hard_readonly(osb)) { @@ -2462,8 +2462,8 @@ static int ocfs2_check_volume(struct ocfs2_super *osb) goto finally; } } else { - mlog(ML_NOTICE, "File system was not unmounted cleanly, " - "recovering volume.\n"); + printk(KERN_NOTICE "ocfs2: File system on device (%s) was not " + "unmounted cleanly, recovering it.\n", osb->dev_str); } local = ocfs2_mount_local(osb); From a035bff6b82aca89c1223e2c614adc2d17ec8aa2 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Sun, 24 Jul 2011 10:35:54 -0700 Subject: [PATCH 019/207] ocfs2: Add comment about orphan scanning Add a comment that explains the reason as to why orphan scan scans all the slots. Signed-off-by: Sunil Mushran --- fs/ocfs2/journal.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index 8eaaa7854409..0a42ae96dca7 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -1811,6 +1811,20 @@ static inline unsigned long ocfs2_orphan_scan_timeout(void) * every slot, queuing a recovery of the slot on the ocfs2_wq thread. This * is done to catch any orphans that are left over in orphan directories. * + * It scans all slots, even ones that are in use. It does so to handle the + * case described below: + * + * Node 1 has an inode it was using. The dentry went away due to memory + * pressure. Node 1 closes the inode, but it's on the free list. The node + * has the open lock. + * Node 2 unlinks the inode. It grabs the dentry lock to notify others, + * but node 1 has no dentry and doesn't get the message. It trylocks the + * open lock, sees that another node has a PR, and does nothing. + * Later node 2 runs its orphan dir. It igets the inode, trylocks the + * open lock, sees the PR still, and does nothing. + * Basically, we have to trigger an orphan iput on node 1. The only way + * for this to happen is if node 1 runs node 2's orphan dir. + * * ocfs2_queue_orphan_scan gets called every ORPHAN_SCAN_SCHEDULE_TIMEOUT * seconds. It gets an EX lock on os_lockres and checks sequence number * stored in LVB. If the sequence number has changed, it means some other From 5cffff9e29866a3de98c2c25135b3199491f93b0 Mon Sep 17 00:00:00 2001 From: Wengang Wang Date: Sun, 24 Jul 2011 10:36:54 -0700 Subject: [PATCH 020/207] ocfs2: Fix ocfs2_page_mkwrite() This patch address two shortcomings in ocfs2_page_mkwrite(): 1. Makes the function return better VM_FAULT_* errors. 2. It handles a error that is triggered when a page is dropped from the mapping due to memory pressure. This patch locks the page to prevent that. [Patch was cleaned up by Sunil Mushran.] Signed-off-by: Wengang Wang Signed-off-by: Sunil Mushran --- fs/ocfs2/aops.c | 51 +++++++++++++++++++++++++++++++++++++++-------- fs/ocfs2/mmap.c | 53 ++++++++++++++++++++++--------------------------- 2 files changed, 67 insertions(+), 37 deletions(-) diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index c1efe939c774..ff98c169b631 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -862,6 +862,12 @@ struct ocfs2_write_ctxt { struct page *w_pages[OCFS2_MAX_CTXT_PAGES]; struct page *w_target_page; + /* + * w_target_locked is used for page_mkwrite path indicating no unlocking + * against w_target_page in ocfs2_write_end_nolock. + */ + unsigned int w_target_locked:1; + /* * ocfs2_write_end() uses this to know what the real range to * write in the target should be. @@ -895,6 +901,24 @@ void ocfs2_unlock_and_free_pages(struct page **pages, int num_pages) static void ocfs2_free_write_ctxt(struct ocfs2_write_ctxt *wc) { + int i; + + /* + * w_target_locked is only set to true in the page_mkwrite() case. + * The intent is to allow us to lock the target page from write_begin() + * to write_end(). The caller must hold a ref on w_target_page. + */ + if (wc->w_target_locked) { + BUG_ON(!wc->w_target_page); + for (i = 0; i < wc->w_num_pages; i++) { + if (wc->w_target_page == wc->w_pages[i]) { + wc->w_pages[i] = NULL; + break; + } + } + mark_page_accessed(wc->w_target_page); + page_cache_release(wc->w_target_page); + } ocfs2_unlock_and_free_pages(wc->w_pages, wc->w_num_pages); brelse(wc->w_di_bh); @@ -1132,20 +1156,17 @@ static int ocfs2_grab_pages_for_write(struct address_space *mapping, */ lock_page(mmap_page); + /* Exit and let the caller retry */ if (mmap_page->mapping != mapping) { + WARN_ON(mmap_page->mapping); unlock_page(mmap_page); - /* - * Sanity check - the locking in - * ocfs2_pagemkwrite() should ensure - * that this code doesn't trigger. - */ - ret = -EINVAL; - mlog_errno(ret); + ret = -EAGAIN; goto out; } page_cache_get(mmap_page); wc->w_pages[i] = mmap_page; + wc->w_target_locked = true; } else { wc->w_pages[i] = find_or_create_page(mapping, index, GFP_NOFS); @@ -1160,6 +1181,8 @@ static int ocfs2_grab_pages_for_write(struct address_space *mapping, wc->w_target_page = wc->w_pages[i]; } out: + if (ret) + wc->w_target_locked = false; return ret; } @@ -1817,11 +1840,23 @@ int ocfs2_write_begin_nolock(struct file *filp, */ ret = ocfs2_grab_pages_for_write(mapping, wc, wc->w_cpos, pos, len, cluster_of_pages, mmap_page); - if (ret) { + if (ret && ret != -EAGAIN) { mlog_errno(ret); goto out_quota; } + /* + * ocfs2_grab_pages_for_write() returns -EAGAIN if it could not lock + * the target page. In this case, we exit with no error and no target + * page. This will trigger the caller, page_mkwrite(), to re-try + * the operation. + */ + if (ret == -EAGAIN) { + BUG_ON(wc->w_target_page); + ret = 0; + goto out_quota; + } + ret = ocfs2_write_cluster_by_desc(mapping, data_ac, meta_ac, wc, pos, len); if (ret) { diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c index 3e9393ca39eb..9cd41083e991 100644 --- a/fs/ocfs2/mmap.c +++ b/fs/ocfs2/mmap.c @@ -61,7 +61,7 @@ static int ocfs2_fault(struct vm_area_struct *area, struct vm_fault *vmf) static int __ocfs2_page_mkwrite(struct file *file, struct buffer_head *di_bh, struct page *page) { - int ret; + int ret = VM_FAULT_NOPAGE; struct inode *inode = file->f_path.dentry->d_inode; struct address_space *mapping = inode->i_mapping; loff_t pos = page_offset(page); @@ -71,32 +71,25 @@ static int __ocfs2_page_mkwrite(struct file *file, struct buffer_head *di_bh, void *fsdata; loff_t size = i_size_read(inode); - /* - * Another node might have truncated while we were waiting on - * cluster locks. - * We don't check size == 0 before the shift. This is borrowed - * from do_generic_file_read. - */ last_index = (size - 1) >> PAGE_CACHE_SHIFT; - if (unlikely(!size || page->index > last_index)) { - ret = -EINVAL; - goto out; - } /* - * The i_size check above doesn't catch the case where nodes - * truncated and then re-extended the file. We'll re-check the - * page mapping after taking the page lock inside of - * ocfs2_write_begin_nolock(). + * There are cases that lead to the page no longer bebongs to the + * mapping. + * 1) pagecache truncates locally due to memory pressure. + * 2) pagecache truncates when another is taking EX lock against + * inode lock. see ocfs2_data_convert_worker. + * + * The i_size check doesn't catch the case where nodes truncated and + * then re-extended the file. We'll re-check the page mapping after + * taking the page lock inside of ocfs2_write_begin_nolock(). + * + * Let VM retry with these cases. */ - if (!PageUptodate(page) || page->mapping != inode->i_mapping) { - /* - * the page has been umapped in ocfs2_data_downconvert_worker. - * So return 0 here and let VFS retry. - */ - ret = 0; + if ((page->mapping != inode->i_mapping) || + (!PageUptodate(page)) || + (page_offset(page) >= size)) goto out; - } /* * Call ocfs2_write_begin() and ocfs2_write_end() to take @@ -116,17 +109,21 @@ static int __ocfs2_page_mkwrite(struct file *file, struct buffer_head *di_bh, if (ret) { if (ret != -ENOSPC) mlog_errno(ret); + if (ret == -ENOMEM) + ret = VM_FAULT_OOM; + else + ret = VM_FAULT_SIGBUS; goto out; } - ret = ocfs2_write_end_nolock(mapping, pos, len, len, locked_page, - fsdata); - if (ret < 0) { - mlog_errno(ret); + if (!locked_page) { + ret = VM_FAULT_NOPAGE; goto out; } + ret = ocfs2_write_end_nolock(mapping, pos, len, len, locked_page, + fsdata); BUG_ON(ret != len); - ret = 0; + ret = VM_FAULT_LOCKED; out: return ret; } @@ -168,8 +165,6 @@ static int ocfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) out: ocfs2_unblock_signals(&oldset); - if (ret) - ret = VM_FAULT_SIGBUS; return ret; } From 93862d5e1ab875664c6cc95254fc365028a48bb1 Mon Sep 17 00:00:00 2001 From: Sunil Mushran Date: Mon, 25 Jul 2011 14:58:15 -0700 Subject: [PATCH 021/207] ocfs2: Implement llseek() ocfs2 implements its own llseek() to provide the SEEK_HOLE/SEEK_DATA functionality. SEEK_HOLE sets the file pointer to the start of either a hole or an unwritten (preallocated) extent, that is greater than or equal to the supplied offset. SEEK_DATA sets the file pointer to the start of an allocated extent (not unwritten) that is greater than or equal to the supplied offset. If the supplied offset is on a desired region, then the file pointer is set to it. Offsets greater than or equal to the file size return -ENXIO. Unwritten (preallocated) extents are considered holes because the file system treats reads to such regions in the same way as it does to holes. Signed-off-by: Sunil Mushran --- fs/ocfs2/extent_map.c | 96 +++++++++++++++++++++++++++++++++++++++++++ fs/ocfs2/extent_map.h | 2 + fs/ocfs2/file.c | 55 ++++++++++++++++++++++++- 3 files changed, 151 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c index 23457b491e8c..2f5b92ef0e53 100644 --- a/fs/ocfs2/extent_map.c +++ b/fs/ocfs2/extent_map.c @@ -832,6 +832,102 @@ int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, return ret; } +int ocfs2_seek_data_hole_offset(struct file *file, loff_t *offset, int origin) +{ + struct inode *inode = file->f_mapping->host; + int ret; + unsigned int is_last = 0, is_data = 0; + u16 cs_bits = OCFS2_SB(inode->i_sb)->s_clustersize_bits; + u32 cpos, cend, clen, hole_size; + u64 extoff, extlen; + struct buffer_head *di_bh = NULL; + struct ocfs2_extent_rec rec; + + BUG_ON(origin != SEEK_DATA && origin != SEEK_HOLE); + + ret = ocfs2_inode_lock(inode, &di_bh, 0); + if (ret) { + mlog_errno(ret); + goto out; + } + + down_read(&OCFS2_I(inode)->ip_alloc_sem); + + if (*offset >= inode->i_size) { + ret = -ENXIO; + goto out_unlock; + } + + if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) { + if (origin == SEEK_HOLE) + *offset = inode->i_size; + goto out_unlock; + } + + clen = 0; + cpos = *offset >> cs_bits; + cend = ocfs2_clusters_for_bytes(inode->i_sb, inode->i_size); + + while (cpos < cend && !is_last) { + ret = ocfs2_get_clusters_nocache(inode, di_bh, cpos, &hole_size, + &rec, &is_last); + if (ret) { + mlog_errno(ret); + goto out_unlock; + } + + extoff = cpos; + extoff <<= cs_bits; + + if (rec.e_blkno == 0ULL) { + clen = hole_size; + is_data = 0; + } else { + clen = le16_to_cpu(rec.e_leaf_clusters) - + (cpos - le32_to_cpu(rec.e_cpos)); + is_data = (rec.e_flags & OCFS2_EXT_UNWRITTEN) ? 0 : 1; + } + + if ((!is_data && origin == SEEK_HOLE) || + (is_data && origin == SEEK_DATA)) { + if (extoff > *offset) + *offset = extoff; + goto out_unlock; + } + + if (!is_last) + cpos += clen; + } + + if (origin == SEEK_HOLE) { + extoff = cpos; + extoff <<= cs_bits; + extlen = clen; + extlen <<= cs_bits; + + if ((extoff + extlen) > inode->i_size) + extlen = inode->i_size - extoff; + extoff += extlen; + if (extoff > *offset) + *offset = extoff; + goto out_unlock; + } + + ret = -ENXIO; + +out_unlock: + + brelse(di_bh); + + up_read(&OCFS2_I(inode)->ip_alloc_sem); + + ocfs2_inode_unlock(inode, 0); +out: + if (ret && ret != -ENXIO) + ret = -ENXIO; + return ret; +} + int ocfs2_read_virt_blocks(struct inode *inode, u64 v_block, int nr, struct buffer_head *bhs[], int flags, int (*validate)(struct super_block *sb, diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h index e79d41c2c909..67ea57d2fd59 100644 --- a/fs/ocfs2/extent_map.h +++ b/fs/ocfs2/extent_map.h @@ -53,6 +53,8 @@ int ocfs2_extent_map_get_blocks(struct inode *inode, u64 v_blkno, u64 *p_blkno, int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 map_start, u64 map_len); +int ocfs2_seek_data_hole_offset(struct file *file, loff_t *offset, int origin); + int ocfs2_xattr_get_clusters(struct inode *inode, u32 v_cluster, u32 *p_cluster, u32 *num_clusters, struct ocfs2_extent_list *el, diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 0fc2bd34039d..c0f015e11c28 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2591,6 +2591,57 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb, return ret; } +/* Refer generic_file_llseek_unlocked() */ +static loff_t ocfs2_file_llseek(struct file *file, loff_t offset, int origin) +{ + struct inode *inode = file->f_mapping->host; + int ret = 0; + + mutex_lock(&inode->i_mutex); + + switch (origin) { + case SEEK_SET: + break; + case SEEK_END: + offset += inode->i_size; + break; + case SEEK_CUR: + if (offset == 0) { + offset = file->f_pos; + goto out; + } + offset += file->f_pos; + break; + case SEEK_DATA: + case SEEK_HOLE: + ret = ocfs2_seek_data_hole_offset(file, &offset, origin); + if (ret) + goto out; + break; + default: + ret = -EINVAL; + goto out; + } + + if (offset < 0 && !(file->f_mode & FMODE_UNSIGNED_OFFSET)) + ret = -EINVAL; + if (!ret && offset > inode->i_sb->s_maxbytes) + ret = -EINVAL; + if (ret) + goto out; + + if (offset != file->f_pos) { + file->f_pos = offset; + file->f_version = 0; + } + +out: + mutex_unlock(&inode->i_mutex); + if (ret) + return ret; + return offset; +} + const struct inode_operations ocfs2_file_iops = { .setattr = ocfs2_setattr, .getattr = ocfs2_getattr, @@ -2615,7 +2666,7 @@ const struct inode_operations ocfs2_special_file_iops = { * ocfs2_fops_no_plocks and ocfs2_dops_no_plocks! */ const struct file_operations ocfs2_fops = { - .llseek = generic_file_llseek, + .llseek = ocfs2_file_llseek, .read = do_sync_read, .write = do_sync_write, .mmap = ocfs2_mmap, @@ -2663,7 +2714,7 @@ const struct file_operations ocfs2_dops = { * the cluster. */ const struct file_operations ocfs2_fops_no_plocks = { - .llseek = generic_file_llseek, + .llseek = ocfs2_file_llseek, .read = do_sync_read, .write = do_sync_write, .mmap = ocfs2_mmap, From a11f7e63c59810a81494d4c4b028af707d4c7ca4 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Wed, 22 Jun 2011 14:23:38 -0700 Subject: [PATCH 022/207] ocfs2: serialize unaligned aio Fix a corruption that can happen when we have (two or more) outstanding aio's to an overlapping unaligned region. Ext4 (e9e3bcecf44c04b9e6b505fd8e2eb9cea58fb94d) and xfs recently had to fix similar issues. In our case what happens is that we can have an outstanding aio on a region and if a write comes in with some bytes overlapping the original aio we may decide to read that region into a page before continuing (typically because of buffered-io fallback). Since we have no ordering guarantees with the aio, we can read stale or bad data into the page and then write it back out. If the i/o is page and block aligned, then we avoid this issue as there won't be any need to read data from disk. I took the same approach as Eric in the ext4 patch and introduced some serialization of unaligned async direct i/o. I don't expect this to have an effect on the most common cases of AIO. Unaligned aio will be slower though, but that's far more acceptable than data corruption. Signed-off-by: Mark Fasheh Signed-off-by: Joel Becker --- fs/ocfs2/aops.c | 10 ++++++++++ fs/ocfs2/aops.h | 14 ++++++++++++++ fs/ocfs2/file.c | 38 ++++++++++++++++++++++++++++++++++++++ fs/ocfs2/inode.h | 3 +++ fs/ocfs2/super.c | 10 ++++++++-- 5 files changed, 73 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index ac97bca282d2..4c1ec8f2d8c1 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -564,6 +564,7 @@ static void ocfs2_dio_end_io(struct kiocb *iocb, { struct inode *inode = iocb->ki_filp->f_path.dentry->d_inode; int level; + wait_queue_head_t *wq = ocfs2_ioend_wq(inode); /* this io's submitter should not have unlocked this before we could */ BUG_ON(!ocfs2_iocb_is_rw_locked(iocb)); @@ -573,6 +574,15 @@ static void ocfs2_dio_end_io(struct kiocb *iocb, ocfs2_iocb_clear_sem_locked(iocb); } + if (ocfs2_iocb_is_unaligned_aio(iocb)) { + ocfs2_iocb_clear_unaligned_aio(iocb); + + if (atomic_dec_and_test(&OCFS2_I(inode)->ip_unaligned_aio) && + waitqueue_active(wq)) { + wake_up_all(wq); + } + } + ocfs2_iocb_clear_rw_locked(iocb); level = ocfs2_iocb_rw_locked_level(iocb); diff --git a/fs/ocfs2/aops.h b/fs/ocfs2/aops.h index 75cf3ad987a6..ffb2da370a99 100644 --- a/fs/ocfs2/aops.h +++ b/fs/ocfs2/aops.h @@ -78,6 +78,7 @@ enum ocfs2_iocb_lock_bits { OCFS2_IOCB_RW_LOCK = 0, OCFS2_IOCB_RW_LOCK_LEVEL, OCFS2_IOCB_SEM, + OCFS2_IOCB_UNALIGNED_IO, OCFS2_IOCB_NUM_LOCKS }; @@ -91,4 +92,17 @@ enum ocfs2_iocb_lock_bits { clear_bit(OCFS2_IOCB_SEM, (unsigned long *)&iocb->private) #define ocfs2_iocb_is_sem_locked(iocb) \ test_bit(OCFS2_IOCB_SEM, (unsigned long *)&iocb->private) + +#define ocfs2_iocb_set_unaligned_aio(iocb) \ + set_bit(OCFS2_IOCB_UNALIGNED_IO, (unsigned long *)&iocb->private) +#define ocfs2_iocb_clear_unaligned_aio(iocb) \ + clear_bit(OCFS2_IOCB_UNALIGNED_IO, (unsigned long *)&iocb->private) +#define ocfs2_iocb_is_unaligned_aio(iocb) \ + test_bit(OCFS2_IOCB_UNALIGNED_IO, (unsigned long *)&iocb->private) + +#define OCFS2_IOEND_WQ_HASH_SZ 37 +#define ocfs2_ioend_wq(v) (&ocfs2__ioend_wq[((unsigned long)(v)) %\ + OCFS2_IOEND_WQ_HASH_SZ]) +extern wait_queue_head_t ocfs2__ioend_wq[OCFS2_IOEND_WQ_HASH_SZ]; + #endif /* OCFS2_FILE_H */ diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index b1e35a392ca5..145f4533a936 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2038,6 +2038,23 @@ int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos, return ret; } +static void ocfs2_aiodio_wait(struct inode *inode) +{ + wait_queue_head_t *wq = ocfs2_ioend_wq(inode); + + wait_event(*wq, (atomic_read(&OCFS2_I(inode)->ip_unaligned_aio) == 0)); +} + +static int ocfs2_is_io_unaligned(struct inode *inode, size_t count, loff_t pos) +{ + int blockmask = inode->i_sb->s_blocksize - 1; + loff_t final_size = pos + count; + + if ((pos & blockmask) || (final_size & blockmask)) + return 1; + return 0; +} + static int ocfs2_prepare_inode_for_refcount(struct inode *inode, struct file *file, loff_t pos, size_t count, @@ -2216,6 +2233,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); int full_coherency = !(osb->s_mount_opt & OCFS2_MOUNT_COHERENCY_BUFFERED); + int unaligned_dio = 0; trace_ocfs2_file_aio_write(inode, file, file->f_path.dentry, (unsigned long long)OCFS2_I(inode)->ip_blkno, @@ -2284,6 +2302,10 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, goto out; } + if (direct_io && !is_sync_kiocb(iocb)) + unaligned_dio = ocfs2_is_io_unaligned(inode, iocb->ki_left, + *ppos); + /* * We can't complete the direct I/O as requested, fall back to * buffered I/O. @@ -2299,6 +2321,18 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, goto relock; } + if (unaligned_dio) { + /* + * Wait on previous unaligned aio to complete before + * proceeding. + */ + ocfs2_aiodio_wait(inode); + + /* Mark the iocb as needing a decrement in ocfs2_dio_end_io */ + atomic_inc(&OCFS2_I(inode)->ip_unaligned_aio); + ocfs2_iocb_set_unaligned_aio(iocb); + } + /* * To later detect whether a journal commit for sync writes is * necessary, we sample i_size, and cluster count here. @@ -2371,8 +2405,12 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, if ((ret == -EIOCBQUEUED) || (!ocfs2_iocb_is_rw_locked(iocb))) { rw_level = -1; have_alloc_sem = 0; + unaligned_dio = 0; } + if (unaligned_dio) + atomic_dec(&OCFS2_I(inode)->ip_unaligned_aio); + out: if (rw_level != -1) ocfs2_rw_unlock(inode, rw_level); diff --git a/fs/ocfs2/inode.h b/fs/ocfs2/inode.h index 1c508b149b3a..88924a3133fa 100644 --- a/fs/ocfs2/inode.h +++ b/fs/ocfs2/inode.h @@ -43,6 +43,9 @@ struct ocfs2_inode_info /* protects extended attribute changes on this inode */ struct rw_semaphore ip_xattr_sem; + /* Number of outstanding AIO's which are not page aligned */ + atomic_t ip_unaligned_aio; + /* These fields are protected by ip_lock */ spinlock_t ip_lock; u32 ip_open_count; diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 029c4cd8a691..603f5fe9f816 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -54,6 +54,7 @@ #include "ocfs1_fs_compat.h" #include "alloc.h" +#include "aops.h" #include "blockcheck.h" #include "dlmglue.h" #include "export.h" @@ -1616,12 +1617,17 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) return 0; } +wait_queue_head_t ocfs2__ioend_wq[OCFS2_IOEND_WQ_HASH_SZ]; + static int __init ocfs2_init(void) { - int status; + int status, i; ocfs2_print_version(); + for (i = 0; i < OCFS2_IOEND_WQ_HASH_SZ; i++) + init_waitqueue_head(&ocfs2__ioend_wq[i]); + status = init_ocfs2_uptodate_cache(); if (status < 0) { mlog_errno(status); @@ -1760,7 +1766,7 @@ static void ocfs2_inode_init_once(void *data) ocfs2_extent_map_init(&oi->vfs_inode); INIT_LIST_HEAD(&oi->ip_io_markers); oi->ip_dir_start_lookup = 0; - + atomic_set(&oi->ip_unaligned_aio, 0); init_rwsem(&oi->ip_alloc_sem); init_rwsem(&oi->ip_xattr_sem); mutex_init(&oi->ip_io_mutex); From c7e25e6e0b0486492c5faaf6312b37413642c48e Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 23 Jun 2011 22:51:47 +0200 Subject: [PATCH 023/207] ocfs2: Avoid livelock in ocfs2_readpage() When someone writes to an inode, readers accessing the same inode via ocfs2_readpage() just busyloop trying to get ip_alloc_sem because do_generic_file_read() looks up the page again and retries ->readpage() when previous attempt failed with AOP_TRUNCATED_PAGE. When there are enough readers, they can occupy all CPUs and in non-preempt kernel the system is deadlocked because writer holding ip_alloc_sem is never run to release the semaphore. Fix the problem by making reader block on ip_alloc_sem to break the busy loop. Signed-off-by: Jan Kara Signed-off-by: Joel Becker --- fs/ocfs2/aops.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 4c1ec8f2d8c1..ba3ca1e63b51 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -290,7 +290,15 @@ static int ocfs2_readpage(struct file *file, struct page *page) } if (down_read_trylock(&oi->ip_alloc_sem) == 0) { + /* + * Unlock the page and cycle ip_alloc_sem so that we don't + * busyloop waiting for ip_alloc_sem to unlock + */ ret = AOP_TRUNCATED_PAGE; + unlock_page(page); + unlock = 0; + down_read(&oi->ip_alloc_sem); + up_read(&oi->ip_alloc_sem); goto out_inode_unlock; } From c2bc11113c50449f23c40b724fe410fc2380a8e9 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Thu, 27 Oct 2011 18:12:42 -0700 Subject: [PATCH 024/207] time: Improve documentation of timekeeeping_adjust() After getting a number of questions in private emails about the math around admittedly very complex timekeeping_adjust() and timekeeping_big_adjust(), I figure the code needs some better comments. Hopefully the explanations are clear enough and don't muddy the water any worse. Still needs documentation for ntp_error, but I couldn't recall exactly the full explanation behind the code that's there (although I do recall once working it out when Roman first proposed it). Given a bit more time I can probably work it out, but I don't want to hold back this documentation until then. Signed-off-by: John Stultz Cc: Chen Jie Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1319764362-32367-1-git-send-email-john.stultz@linaro.org Signed-off-by: Ingo Molnar --- kernel/time/timekeeping.c | 81 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 80 insertions(+), 1 deletion(-) diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 2b021b0e8507..025e136f3881 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -802,14 +802,44 @@ static void timekeeping_adjust(s64 offset) s64 error, interval = timekeeper.cycle_interval; int adj; + /* + * The point of this is to check if the error is greater then half + * an interval. + * + * First we shift it down from NTP_SHIFT to clocksource->shifted nsecs. + * + * Note we subtract one in the shift, so that error is really error*2. + * This "saves" dividing(shifting) intererval twice, but keeps the + * (error > interval) comparision as still measuring if error is + * larger then half an interval. + * + * Note: It does not "save" on aggrivation when reading the code. + */ error = timekeeper.ntp_error >> (timekeeper.ntp_error_shift - 1); if (error > interval) { + /* + * We now divide error by 4(via shift), which checks if + * the error is greater then twice the interval. + * If it is greater, we need a bigadjust, if its smaller, + * we can adjust by 1. + */ error >>= 2; + /* + * XXX - In update_wall_time, we round up to the next + * nanosecond, and store the amount rounded up into + * the error. This causes the likely below to be unlikely. + * + * The properfix is to avoid rounding up by using + * the high precision timekeeper.xtime_nsec instead of + * xtime.tv_nsec everywhere. Fixing this will take some + * time. + */ if (likely(error <= interval)) adj = 1; else adj = timekeeping_bigadjust(error, &interval, &offset); } else if (error < -interval) { + /* See comment above, this is just switched for the negative */ error >>= 2; if (likely(error >= -interval)) { adj = -1; @@ -817,9 +847,58 @@ static void timekeeping_adjust(s64 offset) offset = -offset; } else adj = timekeeping_bigadjust(error, &interval, &offset); - } else + } else /* No adjustment needed */ return; + /* + * So the following can be confusing. + * + * To keep things simple, lets assume adj == 1 for now. + * + * When adj != 1, remember that the interval and offset values + * have been appropriately scaled so the math is the same. + * + * The basic idea here is that we're increasing the multiplier + * by one, this causes the xtime_interval to be incremented by + * one cycle_interval. This is because: + * xtime_interval = cycle_interval * mult + * So if mult is being incremented by one: + * xtime_interval = cycle_interval * (mult + 1) + * Its the same as: + * xtime_interval = (cycle_interval * mult) + cycle_interval + * Which can be shortened to: + * xtime_interval += cycle_interval + * + * So offset stores the non-accumulated cycles. Thus the current + * time (in shifted nanoseconds) is: + * now = (offset * adj) + xtime_nsec + * Now, even though we're adjusting the clock frequency, we have + * to keep time consistent. In other words, we can't jump back + * in time, and we also want to avoid jumping forward in time. + * + * So given the same offset value, we need the time to be the same + * both before and after the freq adjustment. + * now = (offset * adj_1) + xtime_nsec_1 + * now = (offset * adj_2) + xtime_nsec_2 + * So: + * (offset * adj_1) + xtime_nsec_1 = + * (offset * adj_2) + xtime_nsec_2 + * And we know: + * adj_2 = adj_1 + 1 + * So: + * (offset * adj_1) + xtime_nsec_1 = + * (offset * (adj_1+1)) + xtime_nsec_2 + * (offset * adj_1) + xtime_nsec_1 = + * (offset * adj_1) + offset + xtime_nsec_2 + * Canceling the sides: + * xtime_nsec_1 = offset + xtime_nsec_2 + * Which gives us: + * xtime_nsec_2 = xtime_nsec_1 - offset + * Which simplfies to: + * xtime_nsec -= offset + * + * XXX - TODO: Doc ntp_error calculation. + */ timekeeper.mult += adj; timekeeper.xtime_interval += interval; timekeeper.xtime_nsec -= offset; From a9866a0975881ba5e819b0a02324ba683b5cdb81 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Fri, 21 Oct 2011 11:53:34 +0800 Subject: [PATCH 025/207] MAINTAINERS: add ARM/FREESCALE MXS entry As suggested by Pengutronix, they want to get Sascha relieved from the burden of maintaining MXS sub-architecture. Since I brought the most of MXS core code to mainline (with the great help from Pengutronix people, thanks!), I would like to step up for maintaining MXS. Signed-off-by: Shawn Guo Acked-by: Sascha Hauer --- MAINTAINERS | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index ab7767001286..8fe3f0184990 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -804,6 +804,13 @@ S: Maintained T: git git://git.linaro.org/people/shawnguo/linux-2.6.git F: arch/arm/mach-imx/*imx6* +ARM/FREESCALE MXS ARM ARCHITECTURE +M: Shawn Guo +L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) +S: Maintained +T: git git://git.linaro.org/people/shawnguo/linux-2.6.git +F: arch/arm/mach-mxs/ + ARM/GLOMATION GESBC9312SX MACHINE SUPPORT M: Lennert Buytenhek L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) From 5698eb4eda657fd4a74612a65cd5d583f35a5bdb Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Mon, 7 Nov 2011 15:58:40 -0800 Subject: [PATCH 026/207] ARM: OMAP3: CPUidle: include The CPUidle use THIS_MODULE, so needs Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/cpuidle34xx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index 4bf6e6e8b100..2e0fa5a4aaeb 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -24,6 +24,7 @@ #include #include +#include #include #include From 1258ea596fe0422272525d9ec8a25b703de4623f Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 03:16:09 -0700 Subject: [PATCH 027/207] ARM: OMAP2xxx: HWMOD: Fix DSS reset DSS needs all DSS clocks to be enabled to be able to finish reset properly. Before v3.1-rc1 the omapdss driver was managing clocks and resets correctly. However, when omapdss started using runtime PM at v3.1-rc1, the responsibility for the reset moved to HWMOD framework. HWMOD framework does not currently enable all the DSS clocks when resetting the DSS hardware. This hasn't caused any problems so far, but we may just have been lucky. This patch sets HWMOD_CONTROL_OPT_CLKS_IN_RESET for dss_core in OMAP2xxx HWMOD data, fixing the issue. Signed-off-by: Tomi Valkeinen [paul@pwsan.com: merged duplicate .flags fields] Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_2420_data.c | 6 +++++- arch/arm/mach-omap2/omap_hwmod_2430_data.c | 6 +++++- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c index 6d7206213525..5160e3509d5d 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -875,6 +875,10 @@ static struct omap_hwmod_ocp_if *omap2420_dss_slaves[] = { }; static struct omap_hwmod_opt_clk dss_opt_clks[] = { + /* + * The DSS HW needs all DSS clocks enabled during reset. The dss_core + * driver does not use these clocks. + */ { .role = "tv_clk", .clk = "dss_54m_fck" }, { .role = "sys_clk", .clk = "dss2_fck" }, }; @@ -899,7 +903,7 @@ static struct omap_hwmod omap2420_dss_core_hwmod = { .slaves_cnt = ARRAY_SIZE(omap2420_dss_slaves), .masters = omap2420_dss_masters, .masters_cnt = ARRAY_SIZE(omap2420_dss_masters), - .flags = HWMOD_NO_IDLEST, + .flags = HWMOD_NO_IDLEST | HWMOD_CONTROL_OPT_CLKS_IN_RESET, }; /* l4_core -> dss_dispc */ diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c index a2580d01c3ff..d02a44ea7f9b 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c @@ -942,6 +942,10 @@ static struct omap_hwmod_ocp_if *omap2430_dss_slaves[] = { }; static struct omap_hwmod_opt_clk dss_opt_clks[] = { + /* + * The DSS HW needs all DSS clocks enabled during reset. The dss_core + * driver does not use these clocks. + */ { .role = "tv_clk", .clk = "dss_54m_fck" }, { .role = "sys_clk", .clk = "dss2_fck" }, }; @@ -966,7 +970,7 @@ static struct omap_hwmod omap2430_dss_core_hwmod = { .slaves_cnt = ARRAY_SIZE(omap2430_dss_slaves), .masters = omap2430_dss_masters, .masters_cnt = ARRAY_SIZE(omap2430_dss_masters), - .flags = HWMOD_NO_IDLEST, + .flags = HWMOD_NO_IDLEST | HWMOD_CONTROL_OPT_CLKS_IN_RESET, }; /* l4_core -> dss_dispc */ From b8ac10d8b75843c9ddd6aadf70a0cdf8aa783659 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 03:16:09 -0700 Subject: [PATCH 028/207] ARM: OMAP2xxx: HWMOD: fix DSS clock data The OMAP2xxx HWMOD data currently contains two errors with DSS clocks: - dss_rfbi is missing ick opt-clock, which is needed for RFBI to calculate timings - dss_venc's interface and main clocks are wrong, causing VENC to fail to start These problems were temporarily fixed with a DSS patch 9ede365aa6f74428a1f69c21ca1cf21213167576 ("HACK: OMAP: DSS2: clk hack for OMAP2/3"), which can be reverted after this patch (and the similar patches for other OMAPs). Signed-off-by: Tomi Valkeinen Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_2420_data.c | 10 ++++++++-- arch/arm/mach-omap2/omap_hwmod_2430_data.c | 10 ++++++++-- 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c index 5160e3509d5d..74037a5807af 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -965,6 +965,10 @@ static struct omap_hwmod_ocp_if *omap2420_dss_rfbi_slaves[] = { &omap2420_l4_core__dss_rfbi, }; +static struct omap_hwmod_opt_clk dss_rfbi_opt_clks[] = { + { .role = "ick", .clk = "dss_ick" }, +}; + static struct omap_hwmod omap2420_dss_rfbi_hwmod = { .name = "dss_rfbi", .class = &omap2_rfbi_hwmod_class, @@ -976,6 +980,8 @@ static struct omap_hwmod omap2420_dss_rfbi_hwmod = { .module_offs = CORE_MOD, }, }, + .opt_clks = dss_rfbi_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_rfbi_opt_clks), .slaves = omap2420_dss_rfbi_slaves, .slaves_cnt = ARRAY_SIZE(omap2420_dss_rfbi_slaves), .flags = HWMOD_NO_IDLEST, @@ -985,7 +991,7 @@ static struct omap_hwmod omap2420_dss_rfbi_hwmod = { static struct omap_hwmod_ocp_if omap2420_l4_core__dss_venc = { .master = &omap2420_l4_core_hwmod, .slave = &omap2420_dss_venc_hwmod, - .clk = "dss_54m_fck", + .clk = "dss_ick", .addr = omap2_dss_venc_addrs, .fw = { .omap2 = { @@ -1005,7 +1011,7 @@ static struct omap_hwmod_ocp_if *omap2420_dss_venc_slaves[] = { static struct omap_hwmod omap2420_dss_venc_hwmod = { .name = "dss_venc", .class = &omap2_venc_hwmod_class, - .main_clk = "dss1_fck", + .main_clk = "dss_54m_fck", .prcm = { .omap2 = { .prcm_reg_id = 1, diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c index d02a44ea7f9b..6f0365388dfc 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c @@ -1020,6 +1020,10 @@ static struct omap_hwmod_ocp_if *omap2430_dss_rfbi_slaves[] = { &omap2430_l4_core__dss_rfbi, }; +static struct omap_hwmod_opt_clk dss_rfbi_opt_clks[] = { + { .role = "ick", .clk = "dss_ick" }, +}; + static struct omap_hwmod omap2430_dss_rfbi_hwmod = { .name = "dss_rfbi", .class = &omap2_rfbi_hwmod_class, @@ -1031,6 +1035,8 @@ static struct omap_hwmod omap2430_dss_rfbi_hwmod = { .module_offs = CORE_MOD, }, }, + .opt_clks = dss_rfbi_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_rfbi_opt_clks), .slaves = omap2430_dss_rfbi_slaves, .slaves_cnt = ARRAY_SIZE(omap2430_dss_rfbi_slaves), .flags = HWMOD_NO_IDLEST, @@ -1040,7 +1046,7 @@ static struct omap_hwmod omap2430_dss_rfbi_hwmod = { static struct omap_hwmod_ocp_if omap2430_l4_core__dss_venc = { .master = &omap2430_l4_core_hwmod, .slave = &omap2430_dss_venc_hwmod, - .clk = "dss_54m_fck", + .clk = "dss_ick", .addr = omap2_dss_venc_addrs, .flags = OCPIF_SWSUP_IDLE, .user = OCP_USER_MPU | OCP_USER_SDMA, @@ -1054,7 +1060,7 @@ static struct omap_hwmod_ocp_if *omap2430_dss_venc_slaves[] = { static struct omap_hwmod omap2430_dss_venc_hwmod = { .name = "dss_venc", .class = &omap2_venc_hwmod_class, - .main_clk = "dss1_fck", + .main_clk = "dss_54m_fck", .prcm = { .omap2 = { .prcm_reg_id = 1, From 8c3105ca1a42783b13930fbd375484ec8c72e608 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 03:16:10 -0700 Subject: [PATCH 029/207] ARM: OMAP3: HWMOD: Fix DSS reset DSS needs all DSS clocks to be enabled to be able to finish reset properly. Before v3.1-rc1 the omapdss driver was managing clocks and resets correctly. However, when omapdss started using runtime PM at v3.1-rc1, the responsibility for the reset moved to HWMOD framework. HWMOD framework does not currently enable all the DSS clocks when resetting the DSS hardware. This hasn't caused any problems so far, but we may just have been lucky. dss_core's opt-clocks is also missing dss_96m_fck, which is a DSS clock present only on OMAP3430, and thus required on OMAP3430 to finish the reset. This patch sets HWMOD_CONTROL_OPT_CLKS_IN_RESET and adds the dss_96m_fck opt-clock for dss_core in OMAP3 HWMOD data, fixing the issue. Signed-off-by: Tomi Valkeinen [paul@pwsan.com: merged duplicate .flags fields] Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index bc9035ec87fc..45ccd4f07cff 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -1369,9 +1369,14 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_slaves[] = { }; static struct omap_hwmod_opt_clk dss_opt_clks[] = { - { .role = "tv_clk", .clk = "dss_tv_fck" }, - { .role = "video_clk", .clk = "dss_96m_fck" }, + /* + * The DSS HW needs all DSS clocks enabled during reset. The dss_core + * driver does not use these clocks. + */ { .role = "sys_clk", .clk = "dss2_alwon_fck" }, + { .role = "tv_clk", .clk = "dss_tv_fck" }, + /* required only on OMAP3430 */ + { .role = "tv_dac_clk", .clk = "dss_96m_fck" }, }; static struct omap_hwmod omap3430es1_dss_core_hwmod = { @@ -1394,11 +1399,12 @@ static struct omap_hwmod omap3430es1_dss_core_hwmod = { .slaves_cnt = ARRAY_SIZE(omap3430es1_dss_slaves), .masters = omap3xxx_dss_masters, .masters_cnt = ARRAY_SIZE(omap3xxx_dss_masters), - .flags = HWMOD_NO_IDLEST, + .flags = HWMOD_NO_IDLEST | HWMOD_CONTROL_OPT_CLKS_IN_RESET, }; static struct omap_hwmod omap3xxx_dss_core_hwmod = { .name = "dss_core", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, .class = &omap2_dss_hwmod_class, .main_clk = "dss1_alwon_fck", /* instead of dss_fck */ .sdma_reqs = omap3xxx_dss_sdma_chs, From 6c3d7e34d68ffae888d33bf364f447e0b415591f Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 03:16:10 -0700 Subject: [PATCH 030/207] ARM: OMAP3: HWMOD: fix DSS clock data The OMAP3 HWMOD data currently contains these errors with DSS clocks: - dss_rfbi is missing ick opt-clock, which is needed for RFBI to calculate timings - dss_dsi is missing ick and sys_clk - dss_venc is missing dss_96m_fck opt-clock, which is required on OMAP3430 - dss_venc's interface and main clocks are wrong, causing VENC to fail to start These problems were temporarily fixed with a DSS patch 9ede365aa6f74428a1f69c21ca1cf21213167576 ("HACK: OMAP: DSS2: clk hack for OMAP2/3"), which can be reverted after this patch (and the similar patches for other OMAPs). Signed-off-by: Tomi Valkeinen Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 24 ++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index 45ccd4f07cff..4aaf0caaf3cc 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -1492,6 +1492,7 @@ static struct omap_hwmod_addr_space omap3xxx_dss_dsi1_addrs[] = { static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_dsi1 = { .master = &omap3xxx_l4_core_hwmod, .slave = &omap3xxx_dss_dsi1_hwmod, + .clk = "dss_ick", .addr = omap3xxx_dss_dsi1_addrs, .fw = { .omap2 = { @@ -1508,6 +1509,10 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_dsi1_slaves[] = { &omap3xxx_l4_core__dss_dsi1, }; +static struct omap_hwmod_opt_clk dss_dsi1_opt_clks[] = { + { .role = "sys_clk", .clk = "dss2_alwon_fck" }, +}; + static struct omap_hwmod omap3xxx_dss_dsi1_hwmod = { .name = "dss_dsi1", .class = &omap3xxx_dsi_hwmod_class, @@ -1520,6 +1525,8 @@ static struct omap_hwmod omap3xxx_dss_dsi1_hwmod = { .module_offs = OMAP3430_DSS_MOD, }, }, + .opt_clks = dss_dsi1_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_dsi1_opt_clks), .slaves = omap3xxx_dss_dsi1_slaves, .slaves_cnt = ARRAY_SIZE(omap3xxx_dss_dsi1_slaves), .flags = HWMOD_NO_IDLEST, @@ -1546,6 +1553,10 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_rfbi_slaves[] = { &omap3xxx_l4_core__dss_rfbi, }; +static struct omap_hwmod_opt_clk dss_rfbi_opt_clks[] = { + { .role = "ick", .clk = "dss_ick" }, +}; + static struct omap_hwmod omap3xxx_dss_rfbi_hwmod = { .name = "dss_rfbi", .class = &omap2_rfbi_hwmod_class, @@ -1557,6 +1568,8 @@ static struct omap_hwmod omap3xxx_dss_rfbi_hwmod = { .module_offs = OMAP3430_DSS_MOD, }, }, + .opt_clks = dss_rfbi_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_rfbi_opt_clks), .slaves = omap3xxx_dss_rfbi_slaves, .slaves_cnt = ARRAY_SIZE(omap3xxx_dss_rfbi_slaves), .flags = HWMOD_NO_IDLEST, @@ -1566,7 +1579,7 @@ static struct omap_hwmod omap3xxx_dss_rfbi_hwmod = { static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_venc = { .master = &omap3xxx_l4_core_hwmod, .slave = &omap3xxx_dss_venc_hwmod, - .clk = "dss_tv_fck", + .clk = "dss_ick", .addr = omap2_dss_venc_addrs, .fw = { .omap2 = { @@ -1584,10 +1597,15 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_venc_slaves[] = { &omap3xxx_l4_core__dss_venc, }; +static struct omap_hwmod_opt_clk dss_venc_opt_clks[] = { + /* required only on OMAP3430 */ + { .role = "tv_dac_clk", .clk = "dss_96m_fck" }, +}; + static struct omap_hwmod omap3xxx_dss_venc_hwmod = { .name = "dss_venc", .class = &omap2_venc_hwmod_class, - .main_clk = "dss1_alwon_fck", + .main_clk = "dss_tv_fck", .prcm = { .omap2 = { .prcm_reg_id = 1, @@ -1595,6 +1613,8 @@ static struct omap_hwmod omap3xxx_dss_venc_hwmod = { .module_offs = OMAP3430_DSS_MOD, }, }, + .opt_clks = dss_venc_opt_clks, + .opt_clks_cnt = ARRAY_SIZE(dss_venc_opt_clks), .slaves = omap3xxx_dss_venc_slaves, .slaves_cnt = ARRAY_SIZE(omap3xxx_dss_venc_slaves), .flags = HWMOD_NO_IDLEST, From 4247878efca76143aa015ed1142652056052abb8 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 03:16:11 -0700 Subject: [PATCH 031/207] ARM: OMAP4: HWMOD: remove extra clocks Remove the dss_dss_clk from dss_core's opt-clocks. dss_dss_clk already defined as the dss main_clk, and thus is not needed as an opt-clock. Remove opt-clocks for dss_dispc, as dispc only uses the main_clk. Signed-off-by: Tomi Valkeinen Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 7695e5d43316..3b9f2d9f1471 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -1240,7 +1240,6 @@ static struct omap_hwmod_ocp_if *omap44xx_dss_slaves[] = { static struct omap_hwmod_opt_clk dss_opt_clks[] = { { .role = "sys_clk", .clk = "dss_sys_clk" }, { .role = "tv_clk", .clk = "dss_tv_clk" }, - { .role = "dss_clk", .clk = "dss_dss_clk" }, { .role = "video_clk", .clk = "dss_48mhz_clk" }, }; @@ -1340,12 +1339,6 @@ static struct omap_hwmod_ocp_if *omap44xx_dss_dispc_slaves[] = { &omap44xx_l4_per__dss_dispc, }; -static struct omap_hwmod_opt_clk dss_dispc_opt_clks[] = { - { .role = "sys_clk", .clk = "dss_sys_clk" }, - { .role = "tv_clk", .clk = "dss_tv_clk" }, - { .role = "hdmi_clk", .clk = "dss_48mhz_clk" }, -}; - static struct omap_hwmod omap44xx_dss_dispc_hwmod = { .name = "dss_dispc", .class = &omap44xx_dispc_hwmod_class, @@ -1359,8 +1352,6 @@ static struct omap_hwmod omap44xx_dss_dispc_hwmod = { .context_offs = OMAP4_RM_DSS_DSS_CONTEXT_OFFSET, }, }, - .opt_clks = dss_dispc_opt_clks, - .opt_clks_cnt = ARRAY_SIZE(dss_dispc_opt_clks), .slaves = omap44xx_dss_dispc_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_dss_dispc_slaves), }; From 37ad085527860397438f27c81a2cb13272378458 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 03:16:11 -0700 Subject: [PATCH 032/207] ARM: OMAP4: HWMOD: Add HWMOD_CONTROL_OPT_CLKS_IN_RESET for dss_core DSS needs all DSS clocks to be enabled to be able to finish reset properly. Before v3.1-rc1 the omapdss driver was managing clocks and resets correctly. However, when omapdss started using runtime PM at v3.1-rc1, the responsibility for the reset moved to HWMOD framework. HWMOD framework does not currently enable all the DSS clocks when resetting the DSS hardware. This causes the HWMOD frameworks boot-time reset to fail, possibly leaving the DSS hardware in undefined state. This patch sets HWMOD_CONTROL_OPT_CLKS_IN_RESET for dss_core. The flag is actually not used on OMAP4, because dss_core hardware does not have soft-reset functionality and thus the HWMOD framework never resets nor waits for the reset to finish. However, while the flag is not strictly needed currently, I think it represents the HW correctly: all the DSS clocks should be enabled after power-on to allow DSS hardware to finish its reset. A custom reset function will be added in the following patches which manages this correctly for OMAP4. Signed-off-by: Tomi Valkeinen Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 3b9f2d9f1471..b82720abf210 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -1245,6 +1245,7 @@ static struct omap_hwmod_opt_clk dss_opt_clks[] = { static struct omap_hwmod omap44xx_dss_hwmod = { .name = "dss_core", + .flags = HWMOD_CONTROL_OPT_CLKS_IN_RESET, .class = &omap44xx_dss_hwmod_class, .clkdm_name = "l3_dss_clkdm", .main_clk = "dss_dss_clk", From 4d0698d98f501b86d3bef38c46a54a702e0469a0 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 03:16:12 -0700 Subject: [PATCH 033/207] ARM: OMAP4: HWMOD: fix DSS clock data The OMAP4 HWMOD data currently contains errors with DSS clocks: dss_hdmi and dss_venc have their main_clks wrong. The clocks should be dss_48mhz_clk and dss_tv_clk, respectively. These problems were temporarily fixed with the DSS patches 9ede365aa6f74428a1f69c21ca1cf21213167576 ("HACK: OMAP: DSS2: clk hack for OMAP2/3"), and df5d3ed23cf73ee0763a8963003bda9b69d9620f ("OMAP: DSS2: HDMI: fix hdmi clock name"), which can be reverted after this patch. Signed-off-by: Tomi Valkeinen Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index b82720abf210..cadf0bb2d3b7 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -1240,7 +1240,7 @@ static struct omap_hwmod_ocp_if *omap44xx_dss_slaves[] = { static struct omap_hwmod_opt_clk dss_opt_clks[] = { { .role = "sys_clk", .clk = "dss_sys_clk" }, { .role = "tv_clk", .clk = "dss_tv_clk" }, - { .role = "video_clk", .clk = "dss_48mhz_clk" }, + { .role = "hdmi_clk", .clk = "dss_48mhz_clk" }, }; static struct omap_hwmod omap44xx_dss_hwmod = { @@ -1616,7 +1616,7 @@ static struct omap_hwmod omap44xx_dss_hdmi_hwmod = { .clkdm_name = "l3_dss_clkdm", .mpu_irqs = omap44xx_dss_hdmi_irqs, .sdma_reqs = omap44xx_dss_hdmi_sdma_reqs, - .main_clk = "dss_dss_clk", + .main_clk = "dss_48mhz_clk", .prcm = { .omap4 = { .clkctrl_offs = OMAP4_CM_DSS_DSS_CLKCTRL_OFFSET, @@ -1777,7 +1777,7 @@ static struct omap_hwmod omap44xx_dss_venc_hwmod = { .name = "dss_venc", .class = &omap44xx_venc_hwmod_class, .clkdm_name = "l3_dss_clkdm", - .main_clk = "dss_dss_clk", + .main_clk = "dss_tv_clk", .prcm = { .omap4 = { .clkctrl_offs = OMAP4_CM_DSS_DSS_CLKCTRL_OFFSET, From 3ce32676bb355420ceeda57b73dd84df0ff5ad6f Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 03:16:12 -0700 Subject: [PATCH 034/207] ARM: OMAP2/3: HWMOD: Add SYSS_HAS_RESET_STATUS for dss OMAP2/3 dss_core has a reset status flag in sysstatus register. Add SYSS_HAS_RESET_STATUS flag to HWMOD data so it can be used. Signed-off-by: Tomi Valkeinen Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c index c451729d289a..d78c1324ae59 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c @@ -43,7 +43,8 @@ static struct omap_hwmod_class_sysconfig omap2_dss_sysc = { .rev_offs = 0x0000, .sysc_offs = 0x0010, .syss_offs = 0x0014, - .sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE), + .sysc_flags = (SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), .sysc_fields = &omap_hwmod_sysc_type1, }; From 13662dc5b177d68885695ef513dd4ae0e4d2a099 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 03:16:13 -0700 Subject: [PATCH 035/207] ARM: OMAP: HWMOD: Unify DSS resets for OMAPs This patch adds a custom DSS reset function used on OMAPs from OMAP2 forward. The function doesn't actually do a reset, it only waits for the reset to complete. The reason for this is that on OMAP4 there is no possibility to do a SW reset, and on OMAP2/3 doing a SW reset for dss_core resets all the other DSS modules also, thus breaking the HWMOD model where every DSS module is handled independently. This fixes the problem with DSS reset on OMAP4, caused by the fact that because there's no SW reset for dss_core on OMAP4, the HWMOD framework doesn't try to reset dss_core and thus the DSS clocks were never enabled at the same time. This causes causes the HWMOD reset to fail for dss_dispc and dss_rfbi. The common reset function will also allow us to fix another problem in the future: before doing a reset we need to disable DSS outputs, which are in some cases enabled by the bootloader, as otherwise DSS HW seems to get more or less stuck, requiring a power reset to recover. Signed-off-by: Tomi Valkeinen [paul@pwsan.com: modified to build arch/arm/mach-omap2/display.o unconditionally to avoid an error when !CONFIG_OMAP2_DSS] Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/Makefile | 5 +-- arch/arm/mach-omap2/display.c | 35 +++++++++++++++++++ .../omap_hwmod_2xxx_3xxx_ipblock_data.c | 2 ++ arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 2 ++ arch/arm/plat-omap/include/plat/common.h | 3 ++ include/video/omapdss.h | 7 ---- 6 files changed, 43 insertions(+), 11 deletions(-) diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 69ab1c069134..b009f17dee56 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -4,7 +4,7 @@ # Common support obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer.o pm.o \ - common.o gpio.o dma.o wd_timer.o + common.o gpio.o dma.o wd_timer.o display.o omap-2-3-common = irq.o sdrc.o hwmod-common = omap_hwmod.o \ @@ -264,7 +264,4 @@ smsc911x-$(CONFIG_SMSC911X) := gpmc-smsc911x.o obj-y += $(smsc911x-m) $(smsc911x-y) obj-$(CONFIG_ARCH_OMAP4) += hwspinlock.o -disp-$(CONFIG_OMAP2_DSS) := display.o -obj-y += $(disp-m) $(disp-y) - obj-y += common-board-devices.o twl-common.o diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index adb2756e242f..941b5459707f 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -27,6 +27,7 @@ #include #include #include +#include #include "control.h" @@ -172,3 +173,37 @@ int __init omap_display_init(struct omap_dss_board_info *board_data) return r; } + +#define MAX_MODULE_SOFTRESET_WAIT 10000 +int omap_dss_reset(struct omap_hwmod *oh) +{ + struct omap_hwmod_opt_clk *oc; + int c = 0; + int i, r; + + if (!(oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS)) { + pr_err("dss_core: hwmod data doesn't contain reset data\n"); + return -EINVAL; + } + + for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) + if (oc->_clk) + clk_enable(oc->_clk); + + omap_test_timeout((omap_hwmod_read(oh, oh->class->sysc->syss_offs) + & SYSS_RESETDONE_MASK), + MAX_MODULE_SOFTRESET_WAIT, c); + + if (c == MAX_MODULE_SOFTRESET_WAIT) + pr_warning("dss_core: waiting for reset to finish failed\n"); + else + pr_debug("dss_core: softreset done\n"); + + for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) + if (oc->_clk) + clk_disable(oc->_clk); + + r = (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT : 0; + + return r; +} diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c index d78c1324ae59..c11273da5dcc 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c @@ -11,6 +11,7 @@ #include #include #include +#include #include @@ -51,6 +52,7 @@ static struct omap_hwmod_class_sysconfig omap2_dss_sysc = { struct omap_hwmod_class omap2_dss_hwmod_class = { .name = "dss", .sysc = &omap2_dss_sysc, + .reset = omap_dss_reset, }; /* diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index cadf0bb2d3b7..3b04d63316f5 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -30,6 +30,7 @@ #include #include #include +#include #include "omap_hwmod_common_data.h" @@ -1187,6 +1188,7 @@ static struct omap_hwmod_class_sysconfig omap44xx_dss_sysc = { static struct omap_hwmod_class omap44xx_dss_hwmod_class = { .name = "dss", .sysc = &omap44xx_dss_sysc, + .reset = omap_dss_reset, }; /* dss */ diff --git a/arch/arm/plat-omap/include/plat/common.h b/arch/arm/plat-omap/include/plat/common.h index c50df4814f6f..3ff3e36580f2 100644 --- a/arch/arm/plat-omap/include/plat/common.h +++ b/arch/arm/plat-omap/include/plat/common.h @@ -30,6 +30,7 @@ #include #include +#include struct sys_timer; @@ -55,6 +56,8 @@ void am35xx_init_early(void); void ti816x_init_early(void); void omap4430_init_early(void); +extern int omap_dss_reset(struct omap_hwmod *); + void omap_sram_init(void); /* diff --git a/include/video/omapdss.h b/include/video/omapdss.h index b66ebb2032c6..378c7ed6760b 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -307,15 +307,8 @@ struct omap_dss_board_info { void (*dsi_disable_pads)(int dsi_id, unsigned lane_mask); }; -#if defined(CONFIG_OMAP2_DSS_MODULE) || defined(CONFIG_OMAP2_DSS) /* Init with the board info */ extern int omap_display_init(struct omap_dss_board_info *board_data); -#else -static inline int omap_display_init(struct omap_dss_board_info *board_data) -{ - return 0; -} -#endif struct omap_display_platform_data { struct omap_dss_board_info *board_data; From b923d40dd4211c4ef7d4efa2bd81b7ca1d8744c1 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Thu, 6 Oct 2011 18:04:08 -0600 Subject: [PATCH 036/207] ARM: OMAP2PLUS: DSS: Ensure DSS works correctly if display is enabled in bootloader Resetting DISPC when a DISPC output is enabled causes the DSS to go into an inconsistent state. Thus if the bootloader has enabled a display, the hwmod code cannot reset the DISPC module just like that, but the outputs need to be disabled first. Add function dispc_disable_outputs() which disables all active overlay manager and ensure all frame transfers are completed. Modify omap_dss_reset() to call this function and clear DSS_CONTROL, DSS_SDI_CONTROL and DSS_PLL_CONTROL so that DSS is in a clean state when the DSS2 driver starts. This resolves the hang issue(caused by a L3 error during boot) seen on the beagle board C3, which has a factory bootloader that enables display. The issue is resolved with this patch. Thanks to Tomi and Sricharan for some additional testing. Acked-by: Tomi Valkeinen Tested-by: R, Sricharan Signed-off-by: Archit Taneja [paul@pwsan.com: restructured code, removed omap_{read,write}l(), removed cpu_is_omap*() calls and converted to dev_attr] Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/display.c | 124 +++++++++++++++++++ arch/arm/mach-omap2/display.h | 29 +++++ arch/arm/mach-omap2/omap_hwmod_2420_data.c | 1 + arch/arm/mach-omap2/omap_hwmod_2430_data.c | 1 + arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 1 + arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 6 + arch/arm/mach-omap2/omap_hwmod_common_data.c | 4 + arch/arm/mach-omap2/omap_hwmod_common_data.h | 4 + 8 files changed, 170 insertions(+) create mode 100644 arch/arm/mach-omap2/display.h diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 941b5459707f..dce9905d64bb 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -30,6 +30,32 @@ #include #include "control.h" +#include "display.h" + +#define DISPC_CONTROL 0x0040 +#define DISPC_CONTROL2 0x0238 +#define DISPC_IRQSTATUS 0x0018 + +#define DSS_SYSCONFIG 0x10 +#define DSS_SYSSTATUS 0x14 +#define DSS_CONTROL 0x40 +#define DSS_SDI_CONTROL 0x44 +#define DSS_PLL_CONTROL 0x48 + +#define LCD_EN_MASK (0x1 << 0) +#define DIGIT_EN_MASK (0x1 << 1) + +#define FRAMEDONE_IRQ_SHIFT 0 +#define EVSYNC_EVEN_IRQ_SHIFT 2 +#define EVSYNC_ODD_IRQ_SHIFT 3 +#define FRAMEDONE2_IRQ_SHIFT 22 +#define FRAMEDONETV_IRQ_SHIFT 24 + +/* + * FRAMEDONE_IRQ_TIMEOUT: how long (in milliseconds) to wait during DISPC + * reset before deciding that something has gone wrong + */ +#define FRAMEDONE_IRQ_TIMEOUT 100 static struct platform_device omap_display_device = { .name = "omapdss", @@ -174,6 +200,90 @@ int __init omap_display_init(struct omap_dss_board_info *board_data) return r; } +static void dispc_disable_outputs(void) +{ + u32 v, irq_mask = 0; + bool lcd_en, digit_en, lcd2_en = false; + int i; + struct omap_dss_dispc_dev_attr *da; + struct omap_hwmod *oh; + + oh = omap_hwmod_lookup("dss_dispc"); + if (!oh) { + WARN(1, "display: could not disable outputs during reset - could not find dss_dispc hwmod\n"); + return; + } + + if (!oh->dev_attr) { + pr_err("display: could not disable outputs during reset due to missing dev_attr\n"); + return; + } + + da = (struct omap_dss_dispc_dev_attr *)oh->dev_attr; + + /* store value of LCDENABLE and DIGITENABLE bits */ + v = omap_hwmod_read(oh, DISPC_CONTROL); + lcd_en = v & LCD_EN_MASK; + digit_en = v & DIGIT_EN_MASK; + + /* store value of LCDENABLE for LCD2 */ + if (da->manager_count > 2) { + v = omap_hwmod_read(oh, DISPC_CONTROL2); + lcd2_en = v & LCD_EN_MASK; + } + + if (!(lcd_en | digit_en | lcd2_en)) + return; /* no managers currently enabled */ + + /* + * If any manager was enabled, we need to disable it before + * DSS clocks are disabled or DISPC module is reset + */ + if (lcd_en) + irq_mask |= 1 << FRAMEDONE_IRQ_SHIFT; + + if (digit_en) { + if (da->has_framedonetv_irq) { + irq_mask |= 1 << FRAMEDONETV_IRQ_SHIFT; + } else { + irq_mask |= 1 << EVSYNC_EVEN_IRQ_SHIFT | + 1 << EVSYNC_ODD_IRQ_SHIFT; + } + } + + if (lcd2_en) + irq_mask |= 1 << FRAMEDONE2_IRQ_SHIFT; + + /* + * clear any previous FRAMEDONE, FRAMEDONETV, + * EVSYNC_EVEN/ODD or FRAMEDONE2 interrupts + */ + omap_hwmod_write(irq_mask, oh, DISPC_IRQSTATUS); + + /* disable LCD and TV managers */ + v = omap_hwmod_read(oh, DISPC_CONTROL); + v &= ~(LCD_EN_MASK | DIGIT_EN_MASK); + omap_hwmod_write(v, oh, DISPC_CONTROL); + + /* disable LCD2 manager */ + if (da->manager_count > 2) { + v = omap_hwmod_read(oh, DISPC_CONTROL2); + v &= ~LCD_EN_MASK; + omap_hwmod_write(v, oh, DISPC_CONTROL2); + } + + i = 0; + while ((omap_hwmod_read(oh, DISPC_IRQSTATUS) & irq_mask) != + irq_mask) { + i++; + if (i > FRAMEDONE_IRQ_TIMEOUT) { + pr_err("didn't get FRAMEDONE1/2 or TV interrupt\n"); + break; + } + mdelay(1); + } +} + #define MAX_MODULE_SOFTRESET_WAIT 10000 int omap_dss_reset(struct omap_hwmod *oh) { @@ -190,6 +300,20 @@ int omap_dss_reset(struct omap_hwmod *oh) if (oc->_clk) clk_enable(oc->_clk); + dispc_disable_outputs(); + + /* clear SDI registers */ + if (cpu_is_omap3430()) { + omap_hwmod_write(0x0, oh, DSS_SDI_CONTROL); + omap_hwmod_write(0x0, oh, DSS_PLL_CONTROL); + } + + /* + * clear DSS_CONTROL register to switch DSS clock sources to + * PRCM clock, if any + */ + omap_hwmod_write(0x0, oh, DSS_CONTROL); + omap_test_timeout((omap_hwmod_read(oh, oh->class->sysc->syss_offs) & SYSS_RESETDONE_MASK), MAX_MODULE_SOFTRESET_WAIT, c); diff --git a/arch/arm/mach-omap2/display.h b/arch/arm/mach-omap2/display.h new file mode 100644 index 000000000000..b871b017b352 --- /dev/null +++ b/arch/arm/mach-omap2/display.h @@ -0,0 +1,29 @@ +/* + * display.h - OMAP2+ integration-specific DSS header + * + * Copyright (C) 2011 Texas Instruments, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#ifndef __ARCH_ARM_MACH_OMAP2_DISPLAY_H +#define __ARCH_ARM_MACH_OMAP2_DISPLAY_H + +#include + +struct omap_dss_dispc_dev_attr { + u8 manager_count; + bool has_framedonetv_irq; +}; + +#endif diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c index 74037a5807af..a5409ce3f323 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -943,6 +943,7 @@ static struct omap_hwmod omap2420_dss_dispc_hwmod = { .slaves = omap2420_dss_dispc_slaves, .slaves_cnt = ARRAY_SIZE(omap2420_dss_dispc_slaves), .flags = HWMOD_NO_IDLEST, + .dev_attr = &omap2_3_dss_dispc_dev_attr }; /* l4_core -> dss_rfbi */ diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c index 6f0365388dfc..c4f56cb60d7d 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c @@ -1004,6 +1004,7 @@ static struct omap_hwmod omap2430_dss_dispc_hwmod = { .slaves = omap2430_dss_dispc_slaves, .slaves_cnt = ARRAY_SIZE(omap2430_dss_dispc_slaves), .flags = HWMOD_NO_IDLEST, + .dev_attr = &omap2_3_dss_dispc_dev_attr }; /* l4_core -> dss_rfbi */ diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index 4aaf0caaf3cc..7f8915ad5099 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -1462,6 +1462,7 @@ static struct omap_hwmod omap3xxx_dss_dispc_hwmod = { .slaves = omap3xxx_dss_dispc_slaves, .slaves_cnt = ARRAY_SIZE(omap3xxx_dss_dispc_slaves), .flags = HWMOD_NO_IDLEST, + .dev_attr = &omap2_3_dss_dispc_dev_attr }; /* diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 3b04d63316f5..daaf165af696 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -1327,6 +1327,11 @@ static struct omap_hwmod_addr_space omap44xx_dss_dispc_addrs[] = { { } }; +static struct omap_dss_dispc_dev_attr omap44xx_dss_dispc_dev_attr = { + .manager_count = 3, + .has_framedonetv_irq = 1 +}; + /* l4_per -> dss_dispc */ static struct omap_hwmod_ocp_if omap44xx_l4_per__dss_dispc = { .master = &omap44xx_l4_per_hwmod, @@ -1357,6 +1362,7 @@ static struct omap_hwmod omap44xx_dss_dispc_hwmod = { }, .slaves = omap44xx_dss_dispc_slaves, .slaves_cnt = ARRAY_SIZE(omap44xx_dss_dispc_slaves), + .dev_attr = &omap44xx_dss_dispc_dev_attr }; /* diff --git a/arch/arm/mach-omap2/omap_hwmod_common_data.c b/arch/arm/mach-omap2/omap_hwmod_common_data.c index de832ebc93a9..51e5418899fb 100644 --- a/arch/arm/mach-omap2/omap_hwmod_common_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_common_data.c @@ -49,3 +49,7 @@ struct omap_hwmod_sysc_fields omap_hwmod_sysc_type2 = { .srst_shift = SYSC_TYPE2_SOFTRESET_SHIFT, }; +struct omap_dss_dispc_dev_attr omap2_3_dss_dispc_dev_attr = { + .manager_count = 2, + .has_framedonetv_irq = 0 +}; diff --git a/arch/arm/mach-omap2/omap_hwmod_common_data.h b/arch/arm/mach-omap2/omap_hwmod_common_data.h index 39a7c37f4587..ad5d8f04c0b8 100644 --- a/arch/arm/mach-omap2/omap_hwmod_common_data.h +++ b/arch/arm/mach-omap2/omap_hwmod_common_data.h @@ -16,6 +16,8 @@ #include +#include "display.h" + /* Common address space across OMAP2xxx */ extern struct omap_hwmod_addr_space omap2xxx_uart1_addr_space[]; extern struct omap_hwmod_addr_space omap2xxx_uart2_addr_space[]; @@ -111,4 +113,6 @@ extern struct omap_hwmod_class omap2xxx_dma_hwmod_class; extern struct omap_hwmod_class omap2xxx_mailbox_hwmod_class; extern struct omap_hwmod_class omap2xxx_mcspi_class; +extern struct omap_dss_dispc_dev_attr omap2_3_dss_dispc_dev_attr; + #endif From f1e10354fc2a12773e5e8efcf841380aa57d4aa5 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 5 Nov 2011 14:47:19 +0800 Subject: [PATCH 037/207] ASoC: wm9081: Fix reading wrong register for setting VMID 2*240k VMID Divider Enable and Select is controlled by BIT[2:1] of WM9081_VMID_CONTROL register (04h). Current code reads wrong register (WM9081_BIAS_CONTROL_1) for setting VMID 2*240k. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- sound/soc/codecs/wm9081.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c index 3cd35a02c28c..fe6561885f39 100644 --- a/sound/soc/codecs/wm9081.c +++ b/sound/soc/codecs/wm9081.c @@ -818,7 +818,7 @@ static int wm9081_set_bias_level(struct snd_soc_codec *codec, } /* VMID 2*240k */ - reg = snd_soc_read(codec, WM9081_BIAS_CONTROL_1); + reg = snd_soc_read(codec, WM9081_VMID_CONTROL); reg &= ~WM9081_VMID_SEL_MASK; reg |= 0x04; snd_soc_write(codec, WM9081_VMID_CONTROL, reg); From adf463626ad8e0a2cdbe17d8bb64c1d9d0ac160d Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 5 Nov 2011 14:49:21 +0800 Subject: [PATCH 038/207] ASoC: wm9081: Don't write WM9081_BIAS_ENA bit to WM9081_VMID_CONTROL register WM9081_BIAS_ENA is the bit[1] of WM9081_BIAS_CONTROL_1 register (05h). Current code incorrectly write it to WM9081_VMID_CONTROL(04h) register. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- sound/soc/codecs/wm9081.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c index fe6561885f39..4a398c3bfe84 100644 --- a/sound/soc/codecs/wm9081.c +++ b/sound/soc/codecs/wm9081.c @@ -807,7 +807,6 @@ static int wm9081_set_bias_level(struct snd_soc_codec *codec, mdelay(100); /* Normal bias enable & soft start off */ - reg |= WM9081_BIAS_ENA; reg &= ~WM9081_VMID_RAMP; snd_soc_write(codec, WM9081_VMID_CONTROL, reg); @@ -830,14 +829,15 @@ static int wm9081_set_bias_level(struct snd_soc_codec *codec, break; case SND_SOC_BIAS_OFF: - /* Startup bias source */ + /* Startup bias source and disable bias */ reg = snd_soc_read(codec, WM9081_BIAS_CONTROL_1); reg |= WM9081_BIAS_SRC; + reg &= ~WM9081_BIAS_ENA; snd_soc_write(codec, WM9081_BIAS_CONTROL_1, reg); - /* Disable VMID and biases with soft ramping */ + /* Disable VMID with soft ramping */ reg = snd_soc_read(codec, WM9081_VMID_CONTROL); - reg &= ~(WM9081_VMID_SEL_MASK | WM9081_BIAS_ENA); + reg &= ~WM9081_VMID_SEL_MASK; reg |= WM9081_VMID_RAMP; snd_soc_write(codec, WM9081_VMID_CONTROL, reg); From 042f36e1560cedfe524607791fa44607a3121f63 Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Tue, 8 Nov 2011 13:27:31 -0500 Subject: [PATCH 039/207] IB/qib: Don't use schedule_work() It was mistakenly introduced by dde05cbdf8b1 ("IB/qib: Hold links until tuning data is available"). Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- drivers/infiniband/hw/qib/qib_iba7322.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index 5bd2162b95dc..8b46b608c02f 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -5241,7 +5241,7 @@ static int qib_7322_ib_updown(struct qib_pportdata *ppd, int ibup, u64 ibcs) off */ if (ppd->dd->flags & QIB_HAS_QSFP) { qd->t_insert = get_jiffies_64(); - schedule_work(&qd->work); + queue_work(ib_wq, &qd->work); } spin_lock_irqsave(&ppd->sdma_lock, flags); if (__qib_sdma_running(ppd)) From 76ee4557137ce12a60a1e1a070ed341182163a64 Mon Sep 17 00:00:00 2001 From: Kyungmin Park Date: Tue, 8 Nov 2011 19:57:59 +0900 Subject: [PATCH 040/207] ARM: EXYNOS: Fix compiler error with THIS_MODULE CC arch/arm/mach-exynos/cpuidle.o arch/arm/mach-exynos/cpuidle.c:36: error: 'THIS_MODULE' undeclared here (not in a function) arch/arm/mach-exynos/cpuidle.c: In function 'exynos4_enter_idle': arch/arm/mach-exynos/cpuidle.c:42: error: storage size of 'before' isn't known arch/arm/mach-exynos/cpuidle.c:42: error: storage size of 'after' isn't known arch/arm/mach-exynos/cpuidle.c:46: error: implicit declaration of function 'do_gettimeofday' arch/arm/mach-exynos/cpuidle.c:52: error: 'USEC_PER_SEC' undeclared (first use in this function) arch/arm/mach-exynos/cpuidle.c:52: error: (Each undeclared identifier is reported only once arch/arm/mach-exynos/cpuidle.c:52: error: for each function it appears in.) arch/arm/mach-exynos/cpuidle.c:42: warning: unused variable 'after' arch/arm/mach-exynos/cpuidle.c:42: warning: unused variable 'before' make[1]: *** [arch/arm/mach-exynos/cpuidle.o] Error 1 Signed-off-by: Kyungmin Park [kgene.kim@samsung.com: Fixed as per Stephen's suggestion] Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/cpuidle.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c index 35f6502144ae..4ebb382c5979 100644 --- a/arch/arm/mach-exynos/cpuidle.c +++ b/arch/arm/mach-exynos/cpuidle.c @@ -12,6 +12,8 @@ #include #include #include +#include +#include #include From 5bb01a991897d74295ff8de548d350400d7370a9 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 9 Nov 2011 15:29:31 -0800 Subject: [PATCH 041/207] ARM: OMAP: Fix map_io for Amstrad E3 Commit 7b88e62f5d219a86d81bdf4388012c97dc42e8f8 (ARM: OMAP1: Use generic map_io, init_early and init_irq) changed omap1 to use generic map_io. Looks like I missed one board though. Fix this by adding a custom map_io for Amstrad E3. Reported-by: Aaro Koskinen Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/board-ams-delta.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c index 51bae31cf361..b0f15d234a12 100644 --- a/arch/arm/mach-omap1/board-ams-delta.c +++ b/arch/arm/mach-omap1/board-ams-delta.c @@ -302,8 +302,6 @@ static void __init ams_delta_init(void) omap_cfg_reg(J19_1610_CAM_D6); omap_cfg_reg(J18_1610_CAM_D7); - iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc)); - omap_board_config = ams_delta_config; omap_board_config_size = ARRAY_SIZE(ams_delta_config); omap_serial_init(); @@ -373,10 +371,16 @@ static int __init ams_delta_modem_init(void) } arch_initcall(ams_delta_modem_init); +static void __init ams_delta_map_io(void) +{ + omap15xx_map_io(); + iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc)); +} + MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)") /* Maintainer: Jonathan McDowell */ .atag_offset = 0x100, - .map_io = omap15xx_map_io, + .map_io = ams_delta_map_io, .init_early = omap1_init_early, .reserve = omap_reserve, .init_irq = omap1_init_irq, From c0a39151a4055332897cba615623d3de2f3896df Mon Sep 17 00:00:00 2001 From: Haojian Zhuang Date: Thu, 10 Nov 2011 07:13:07 +0800 Subject: [PATCH 042/207] ARM: pxa: fix inconsistent CONFIG_USB_PXA27X Since CONFIG_USB_GADGET_PXA27X and other macros are renamed to CONFIG_USB_PXA27X. Update them in arch/arm/mach-pxa and arch/arm/configs to keep consistent. Cc: stable@kernel.org Signed-off-by: Haojian Zhuang Acked-by: Felipe Balbi Signed-off-by: Eric Miao --- arch/arm/configs/ezx_defconfig | 2 +- arch/arm/configs/imote2_defconfig | 2 +- arch/arm/configs/magician_defconfig | 2 +- arch/arm/configs/zeus_defconfig | 2 +- arch/arm/mach-pxa/balloon3.c | 2 +- arch/arm/mach-pxa/colibri-pxa320.c | 2 +- arch/arm/mach-pxa/gumstix.c | 2 +- arch/arm/mach-pxa/include/mach/palm27x.h | 4 ++-- arch/arm/mach-pxa/palm27x.c | 4 ++-- arch/arm/mach-pxa/palmtc.c | 2 +- arch/arm/mach-pxa/vpac270.c | 2 +- 11 files changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/arm/configs/ezx_defconfig b/arch/arm/configs/ezx_defconfig index 227a477346ed..d95763d5f0d8 100644 --- a/arch/arm/configs/ezx_defconfig +++ b/arch/arm/configs/ezx_defconfig @@ -287,7 +287,7 @@ CONFIG_USB=y # CONFIG_USB_DEVICE_CLASS is not set CONFIG_USB_OHCI_HCD=y CONFIG_USB_GADGET=y -CONFIG_USB_GADGET_PXA27X=y +CONFIG_USB_PXA27X=y CONFIG_USB_ETH=m # CONFIG_USB_ETH_RNDIS is not set CONFIG_MMC=y diff --git a/arch/arm/configs/imote2_defconfig b/arch/arm/configs/imote2_defconfig index 176ec22af034..fd996bb13022 100644 --- a/arch/arm/configs/imote2_defconfig +++ b/arch/arm/configs/imote2_defconfig @@ -263,7 +263,7 @@ CONFIG_USB=y # CONFIG_USB_DEVICE_CLASS is not set CONFIG_USB_OHCI_HCD=y CONFIG_USB_GADGET=y -CONFIG_USB_GADGET_PXA27X=y +CONFIG_USB_PXA27X=y CONFIG_USB_ETH=m # CONFIG_USB_ETH_RNDIS is not set CONFIG_MMC=y diff --git a/arch/arm/configs/magician_defconfig b/arch/arm/configs/magician_defconfig index a88e64d4e9a5..443675d317e6 100644 --- a/arch/arm/configs/magician_defconfig +++ b/arch/arm/configs/magician_defconfig @@ -132,7 +132,7 @@ CONFIG_USB_MON=m CONFIG_USB_OHCI_HCD=y CONFIG_USB_GADGET=y CONFIG_USB_GADGET_VBUS_DRAW=500 -CONFIG_USB_GADGET_PXA27X=y +CONFIG_USB_PXA27X=y CONFIG_USB_ETH=m # CONFIG_USB_ETH_RNDIS is not set CONFIG_USB_GADGETFS=m diff --git a/arch/arm/configs/zeus_defconfig b/arch/arm/configs/zeus_defconfig index 59577ad3f4ef..547a3c1e59db 100644 --- a/arch/arm/configs/zeus_defconfig +++ b/arch/arm/configs/zeus_defconfig @@ -140,7 +140,7 @@ CONFIG_USB_SERIAL=m CONFIG_USB_SERIAL_GENERIC=y CONFIG_USB_SERIAL_MCT_U232=m CONFIG_USB_GADGET=m -CONFIG_USB_GADGET_PXA27X=y +CONFIG_USB_PXA27X=y CONFIG_USB_ETH=m CONFIG_USB_GADGETFS=m CONFIG_USB_FILE_STORAGE=m diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c index fc0b8544e174..4b81f59a4cba 100644 --- a/arch/arm/mach-pxa/balloon3.c +++ b/arch/arm/mach-pxa/balloon3.c @@ -307,7 +307,7 @@ static inline void balloon3_mmc_init(void) {} /****************************************************************************** * USB Gadget ******************************************************************************/ -#if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE) +#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE) static void balloon3_udc_command(int cmd) { if (cmd == PXA2XX_UDC_CMD_CONNECT) diff --git a/arch/arm/mach-pxa/colibri-pxa320.c b/arch/arm/mach-pxa/colibri-pxa320.c index 692e1ffc5586..d23b92b80488 100644 --- a/arch/arm/mach-pxa/colibri-pxa320.c +++ b/arch/arm/mach-pxa/colibri-pxa320.c @@ -146,7 +146,7 @@ static void __init colibri_pxa320_init_eth(void) static inline void __init colibri_pxa320_init_eth(void) {} #endif /* CONFIG_AX88796 */ -#if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE) +#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE) static struct gpio_vbus_mach_info colibri_pxa320_gpio_vbus_info = { .gpio_vbus = mfp_to_gpio(MFP_PIN_GPIO96), .gpio_pullup = -1, diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c index 9c8208ca0415..ffdd70dad327 100644 --- a/arch/arm/mach-pxa/gumstix.c +++ b/arch/arm/mach-pxa/gumstix.c @@ -106,7 +106,7 @@ static void __init gumstix_mmc_init(void) } #endif -#ifdef CONFIG_USB_GADGET_PXA25X +#ifdef CONFIG_USB_PXA25X static struct gpio_vbus_mach_info gumstix_udc_info = { .gpio_vbus = GPIO_GUMSTIX_USB_GPIOn, .gpio_pullup = GPIO_GUMSTIX_USB_GPIOx, diff --git a/arch/arm/mach-pxa/include/mach/palm27x.h b/arch/arm/mach-pxa/include/mach/palm27x.h index f80bbe246afe..d4eac3d6ffb5 100644 --- a/arch/arm/mach-pxa/include/mach/palm27x.h +++ b/arch/arm/mach-pxa/include/mach/palm27x.h @@ -37,8 +37,8 @@ extern void __init palm27x_lcd_init(int power, #define palm27x_lcd_init(power, mode) do {} while (0) #endif -#if defined(CONFIG_USB_GADGET_PXA27X) || \ - defined(CONFIG_USB_GADGET_PXA27X_MODULE) +#if defined(CONFIG_USB_PXA27X) || \ + defined(CONFIG_USB_PXA27X_MODULE) extern void __init palm27x_udc_init(int vbus, int pullup, int vbus_inverted); #else diff --git a/arch/arm/mach-pxa/palm27x.c b/arch/arm/mach-pxa/palm27x.c index 325c245c0a0d..fbc10d7b95d1 100644 --- a/arch/arm/mach-pxa/palm27x.c +++ b/arch/arm/mach-pxa/palm27x.c @@ -164,8 +164,8 @@ void __init palm27x_lcd_init(int power, struct pxafb_mode_info *mode) /****************************************************************************** * USB Gadget ******************************************************************************/ -#if defined(CONFIG_USB_GADGET_PXA27X) || \ - defined(CONFIG_USB_GADGET_PXA27X_MODULE) +#if defined(CONFIG_USB_PXA27X) || \ + defined(CONFIG_USB_PXA27X_MODULE) static struct gpio_vbus_mach_info palm27x_udc_info = { .gpio_vbus_inverted = 1, }; diff --git a/arch/arm/mach-pxa/palmtc.c b/arch/arm/mach-pxa/palmtc.c index 6ec7caefb37c..2c24c67fd92b 100644 --- a/arch/arm/mach-pxa/palmtc.c +++ b/arch/arm/mach-pxa/palmtc.c @@ -338,7 +338,7 @@ static inline void palmtc_mkp_init(void) {} /****************************************************************************** * UDC ******************************************************************************/ -#if defined(CONFIG_USB_GADGET_PXA25X)||defined(CONFIG_USB_GADGET_PXA25X_MODULE) +#if defined(CONFIG_USB_PXA25X)||defined(CONFIG_USB_PXA25X_MODULE) static struct gpio_vbus_mach_info palmtc_udc_info = { .gpio_vbus = GPIO_NR_PALMTC_USB_DETECT_N, .gpio_vbus_inverted = 1, diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c index a7539a6ed1ff..ca0c6615028c 100644 --- a/arch/arm/mach-pxa/vpac270.c +++ b/arch/arm/mach-pxa/vpac270.c @@ -343,7 +343,7 @@ static inline void vpac270_uhc_init(void) {} /****************************************************************************** * USB Gadget ******************************************************************************/ -#if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE) +#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE) static struct gpio_vbus_mach_info vpac270_gpio_vbus_info = { .gpio_vbus = GPIO41_VPAC270_UDC_DETECT, .gpio_pullup = -1, From 98d97019c88bd832da1457729739cf739ece493f Mon Sep 17 00:00:00 2001 From: Jassi Brar Date: Thu, 10 Nov 2011 17:19:07 +0530 Subject: [PATCH 043/207] MAINTAINERS: Drop inactive Samsung ASoC maintainer Signed-off-by: Jassi Brar Signed-off-by: Mark Brown --- MAINTAINERS | 1 - 1 file changed, 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index c802e5fa2d11..fd7e441b5ea7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5648,7 +5648,6 @@ F: drivers/media/video/*7146* F: include/media/*7146* SAMSUNG AUDIO (ASoC) DRIVERS -M: Jassi Brar M: Sangbeom Kim L: alsa-devel@alsa-project.org (moderated for non-subscribers) S: Supported From d65670a78cdbfae94f20a9e05ec705871d7cdf2b Mon Sep 17 00:00:00 2001 From: John Stultz Date: Mon, 31 Oct 2011 17:06:35 -0400 Subject: [PATCH 044/207] clocksource: Avoid selecting mult values that might overflow when adjusted For some frequencies, the clocks_calc_mult_shift() function will unfortunately select mult values very close to 0xffffffff. This has the potential to overflow when NTP adjusts the clock, adding to the mult value. This patch adds a clocksource.maxadj value, which provides an approximation of an 11% adjustment(NTP limits adjustments to 500ppm and the tick adjustment is limited to 10%), which could be made to the clocksource.mult value. This is then used to both check that the current mult value won't overflow/underflow, as well as warning us if the timekeeping_adjust() code pushes over that 11% boundary. v2: Fix max_adjustment calculation, and improve WARN_ONCE messages. v3: Don't warn before maxadj has actually been set CC: Yong Zhang CC: David Daney CC: Thomas Gleixner CC: Chen Jie CC: zhangfx CC: stable@kernel.org Reported-by: Chen Jie Reported-by: zhangfx Tested-by: Yong Zhang Signed-off-by: John Stultz --- include/linux/clocksource.h | 3 +- kernel/time/clocksource.c | 58 ++++++++++++++++++++++++++++++------- kernel/time/timekeeping.c | 7 +++++ 3 files changed, 57 insertions(+), 11 deletions(-) diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 139c4db55f17..c86c940d1de3 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -156,6 +156,7 @@ extern u64 timecounter_cyc2time(struct timecounter *tc, * @mult: cycle to nanosecond multiplier * @shift: cycle to nanosecond divisor (power of two) * @max_idle_ns: max idle time permitted by the clocksource (nsecs) + * @maxadj maximum adjustment value to mult (~11%) * @flags: flags describing special properties * @archdata: arch-specific data * @suspend: suspend function for the clocksource, if necessary @@ -172,7 +173,7 @@ struct clocksource { u32 mult; u32 shift; u64 max_idle_ns; - + u32 maxadj; #ifdef CONFIG_ARCH_CLOCKSOURCE_DATA struct arch_clocksource_data archdata; #endif diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index cf52fda2e096..cfc65e1eb9fb 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -491,6 +491,22 @@ void clocksource_touch_watchdog(void) clocksource_resume_watchdog(); } +/** + * clocksource_max_adjustment- Returns max adjustment amount + * @cs: Pointer to clocksource + * + */ +static u32 clocksource_max_adjustment(struct clocksource *cs) +{ + u64 ret; + /* + * We won't try to correct for more then 11% adjustments (110,000 ppm), + */ + ret = (u64)cs->mult * 11; + do_div(ret,100); + return (u32)ret; +} + /** * clocksource_max_deferment - Returns max time the clocksource can be deferred * @cs: Pointer to clocksource @@ -503,25 +519,28 @@ static u64 clocksource_max_deferment(struct clocksource *cs) /* * Calculate the maximum number of cycles that we can pass to the * cyc2ns function without overflowing a 64-bit signed result. The - * maximum number of cycles is equal to ULLONG_MAX/cs->mult which - * is equivalent to the below. - * max_cycles < (2^63)/cs->mult - * max_cycles < 2^(log2((2^63)/cs->mult)) - * max_cycles < 2^(log2(2^63) - log2(cs->mult)) - * max_cycles < 2^(63 - log2(cs->mult)) - * max_cycles < 1 << (63 - log2(cs->mult)) + * maximum number of cycles is equal to ULLONG_MAX/(cs->mult+cs->maxadj) + * which is equivalent to the below. + * max_cycles < (2^63)/(cs->mult + cs->maxadj) + * max_cycles < 2^(log2((2^63)/(cs->mult + cs->maxadj))) + * max_cycles < 2^(log2(2^63) - log2(cs->mult + cs->maxadj)) + * max_cycles < 2^(63 - log2(cs->mult + cs->maxadj)) + * max_cycles < 1 << (63 - log2(cs->mult + cs->maxadj)) * Please note that we add 1 to the result of the log2 to account for * any rounding errors, ensure the above inequality is satisfied and * no overflow will occur. */ - max_cycles = 1ULL << (63 - (ilog2(cs->mult) + 1)); + max_cycles = 1ULL << (63 - (ilog2(cs->mult + cs->maxadj) + 1)); /* * The actual maximum number of cycles we can defer the clocksource is * determined by the minimum of max_cycles and cs->mask. + * Note: Here we subtract the maxadj to make sure we don't sleep for + * too long if there's a large negative adjustment. */ max_cycles = min_t(u64, max_cycles, (u64) cs->mask); - max_nsecs = clocksource_cyc2ns(max_cycles, cs->mult, cs->shift); + max_nsecs = clocksource_cyc2ns(max_cycles, cs->mult - cs->maxadj, + cs->shift); /* * To ensure that the clocksource does not wrap whilst we are idle, @@ -640,7 +659,6 @@ static void clocksource_enqueue(struct clocksource *cs) void __clocksource_updatefreq_scale(struct clocksource *cs, u32 scale, u32 freq) { u64 sec; - /* * Calc the maximum number of seconds which we can run before * wrapping around. For clocksources which have a mask > 32bit @@ -661,6 +679,20 @@ void __clocksource_updatefreq_scale(struct clocksource *cs, u32 scale, u32 freq) clocks_calc_mult_shift(&cs->mult, &cs->shift, freq, NSEC_PER_SEC / scale, sec * scale); + + /* + * for clocksources that have large mults, to avoid overflow. + * Since mult may be adjusted by ntp, add an safety extra margin + * + */ + cs->maxadj = clocksource_max_adjustment(cs); + while ((cs->mult + cs->maxadj < cs->mult) + || (cs->mult - cs->maxadj > cs->mult)) { + cs->mult >>= 1; + cs->shift--; + cs->maxadj = clocksource_max_adjustment(cs); + } + cs->max_idle_ns = clocksource_max_deferment(cs); } EXPORT_SYMBOL_GPL(__clocksource_updatefreq_scale); @@ -701,6 +733,12 @@ EXPORT_SYMBOL_GPL(__clocksource_register_scale); */ int clocksource_register(struct clocksource *cs) { + /* calculate max adjustment for given mult/shift */ + cs->maxadj = clocksource_max_adjustment(cs); + WARN_ONCE(cs->mult + cs->maxadj < cs->mult, + "Clocksource %s might overflow on 11%% adjustment\n", + cs->name); + /* calculate max idle time permitted for this clocksource */ cs->max_idle_ns = clocksource_max_deferment(cs); diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 2b021b0e8507..e65ff3171102 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -820,6 +820,13 @@ static void timekeeping_adjust(s64 offset) } else return; + WARN_ONCE(timekeeper.clock->maxadj && + (timekeeper.mult + adj > timekeeper.clock->mult + + timekeeper.clock->maxadj), + "Adjusting %s more then 11%% (%ld vs %ld)\n", + timekeeper.clock->name, (long)timekeeper.mult + adj, + (long)timekeeper.clock->mult + + timekeeper.clock->maxadj); timekeeper.mult += adj; timekeeper.xtime_interval += interval; timekeeper.xtime_nsec -= offset; From 7be620f79714b6598275bd5c71d89bb24dfe332e Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 10 Nov 2011 12:12:55 -0800 Subject: [PATCH 045/207] ARM: OMAP: Fix dpll_data compile error when omap2 only is selected Without this patch we get the following error: arch/arm/mach-omap2/clkt_dpll.c: In function '_dpll_test_fint': arch/arm/mach-omap2/clkt_dpll.c:98: error: 'struct dpll_data' has no member named 'flags' Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/plat/clock.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h index 197ca03c3f7d..eb73ab40e955 100644 --- a/arch/arm/plat-omap/include/plat/clock.h +++ b/arch/arm/plat-omap/include/plat/clock.h @@ -165,8 +165,8 @@ struct dpll_data { u8 auto_recal_bit; u8 recal_en_bit; u8 recal_st_bit; - u8 flags; # endif + u8 flags; }; #endif From 6a53fc531dcf4719e80d0152ca044e35b0f92591 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 25 Aug 2011 08:52:36 -0300 Subject: [PATCH 046/207] ARM: imx: Remove unused chip revision strings Since commit (167a19d2: ARM: imx: Introduce generic function for displaying silicon revision) we no longer need the chip revision strings, so remove them. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer --- arch/arm/plat-mxc/include/mach/mxc.h | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h index 00a78193c681..a4d36d601d55 100644 --- a/arch/arm/plat-mxc/include/mach/mxc.h +++ b/arch/arm/plat-mxc/include/mach/mxc.h @@ -50,20 +50,6 @@ #define IMX_CHIP_REVISION_3_3 0x33 #define IMX_CHIP_REVISION_UNKNOWN 0xff -#define IMX_CHIP_REVISION_1_0_STRING "1.0" -#define IMX_CHIP_REVISION_1_1_STRING "1.1" -#define IMX_CHIP_REVISION_1_2_STRING "1.2" -#define IMX_CHIP_REVISION_1_3_STRING "1.3" -#define IMX_CHIP_REVISION_2_0_STRING "2.0" -#define IMX_CHIP_REVISION_2_1_STRING "2.1" -#define IMX_CHIP_REVISION_2_2_STRING "2.2" -#define IMX_CHIP_REVISION_2_3_STRING "2.3" -#define IMX_CHIP_REVISION_3_0_STRING "3.0" -#define IMX_CHIP_REVISION_3_1_STRING "3.1" -#define IMX_CHIP_REVISION_3_2_STRING "3.2" -#define IMX_CHIP_REVISION_3_3_STRING "3.3" -#define IMX_CHIP_REVISION_UNKNOWN_STRING "unknown" - #ifndef __ASSEMBLY__ extern unsigned int __mxc_cpu_type; #endif From 8c6d8319eca370f804fb8e1fcf7070b587d1b81d Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Fri, 11 Nov 2011 13:09:18 +0800 Subject: [PATCH 047/207] arm/imx: remove imx_idle hook and use pm_idle instead The patch removes imx_idle hook and use pm_idle instead to get imx arch_idle prepared for the cleanup. It's suggested by Russel King as below. > The final removal of mach/system.h depends on getting rid of the arch_idle > thing. While going through these headers, I was dismayed to find these: > > arch/arm/mach-s3c2410/include/mach/system.h:void (*s3c24xx_idle)(void); > arch/arm/plat-mxc/include/mach/system.h:extern void (*imx_idle)(void); > > when we have a perfectly good pm_idle hook already in place - so there's > no excuse for these especially when other platforms are already using > pm_idle to hook their platform specific idle function into. This is > something that better be gone at the next merge window! Suggested-by: Russell King Signed-off-by: Shawn Guo Acked-by: Russell King Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mm-imx3.c | 53 +++++++++++++------------ arch/arm/mach-mx5/mm.c | 6 ++- arch/arm/plat-mxc/include/mach/common.h | 1 - arch/arm/plat-mxc/include/mach/system.h | 7 +--- arch/arm/plat-mxc/system.c | 1 - 5 files changed, 33 insertions(+), 35 deletions(-) diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index 9f0e82ec3398..6d01de326f90 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -33,29 +33,32 @@ static void imx3_idle(void) { unsigned long reg = 0; - __asm__ __volatile__( - /* disable I and D cache */ - "mrc p15, 0, %0, c1, c0, 0\n" - "bic %0, %0, #0x00001000\n" - "bic %0, %0, #0x00000004\n" - "mcr p15, 0, %0, c1, c0, 0\n" - /* invalidate I cache */ - "mov %0, #0\n" - "mcr p15, 0, %0, c7, c5, 0\n" - /* clear and invalidate D cache */ - "mov %0, #0\n" - "mcr p15, 0, %0, c7, c14, 0\n" - /* WFI */ - "mov %0, #0\n" - "mcr p15, 0, %0, c7, c0, 4\n" - "nop\n" "nop\n" "nop\n" "nop\n" - "nop\n" "nop\n" "nop\n" - /* enable I and D cache */ - "mrc p15, 0, %0, c1, c0, 0\n" - "orr %0, %0, #0x00001000\n" - "orr %0, %0, #0x00000004\n" - "mcr p15, 0, %0, c1, c0, 0\n" - : "=r" (reg)); + + if (!need_resched()) + __asm__ __volatile__( + /* disable I and D cache */ + "mrc p15, 0, %0, c1, c0, 0\n" + "bic %0, %0, #0x00001000\n" + "bic %0, %0, #0x00000004\n" + "mcr p15, 0, %0, c1, c0, 0\n" + /* invalidate I cache */ + "mov %0, #0\n" + "mcr p15, 0, %0, c7, c5, 0\n" + /* clear and invalidate D cache */ + "mov %0, #0\n" + "mcr p15, 0, %0, c7, c14, 0\n" + /* WFI */ + "mov %0, #0\n" + "mcr p15, 0, %0, c7, c0, 4\n" + "nop\n" "nop\n" "nop\n" "nop\n" + "nop\n" "nop\n" "nop\n" + /* enable I and D cache */ + "mrc p15, 0, %0, c1, c0, 0\n" + "orr %0, %0, #0x00001000\n" + "orr %0, %0, #0x00000004\n" + "mcr p15, 0, %0, c1, c0, 0\n" + : "=r" (reg)); + local_irq_enable(); } static void __iomem *imx3_ioremap(unsigned long phys_addr, size_t size, @@ -143,7 +146,7 @@ void __init imx31_init_early(void) { mxc_set_cpu_type(MXC_CPU_MX31); mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR)); - imx_idle = imx3_idle; + pm_idle = imx3_idle; imx_ioremap = imx3_ioremap; } @@ -152,7 +155,7 @@ void __init imx35_init_early(void) mxc_set_cpu_type(MXC_CPU_MX35); mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR)); mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR)); - imx_idle = imx3_idle; + pm_idle = imx3_idle; imx_ioremap = imx3_ioremap; } diff --git a/arch/arm/mach-mx5/mm.c b/arch/arm/mach-mx5/mm.c index 26eacc9d0d90..df4a508f240a 100644 --- a/arch/arm/mach-mx5/mm.c +++ b/arch/arm/mach-mx5/mm.c @@ -23,7 +23,9 @@ static void imx5_idle(void) { - mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF); + if (!need_resched()) + mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF); + local_irq_enable(); } /* @@ -89,7 +91,7 @@ void __init imx51_init_early(void) mxc_set_cpu_type(MXC_CPU_MX51); mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR)); mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG1_BASE_ADDR)); - imx_idle = imx5_idle; + pm_idle = imx5_idle; } void __init imx53_init_early(void) diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 83b745a5e1b7..7143d52c25e1 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -85,7 +85,6 @@ enum mxc_cpu_pwr_mode { }; extern void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode); -extern void (*imx_idle)(void); extern void imx_print_silicon_rev(const char *cpu, int srev); void avic_handle_irq(struct pt_regs *); diff --git a/arch/arm/plat-mxc/include/mach/system.h b/arch/arm/plat-mxc/include/mach/system.h index cf88b3593fba..b9895d250167 100644 --- a/arch/arm/plat-mxc/include/mach/system.h +++ b/arch/arm/plat-mxc/include/mach/system.h @@ -17,14 +17,9 @@ #ifndef __ASM_ARCH_MXC_SYSTEM_H__ #define __ASM_ARCH_MXC_SYSTEM_H__ -extern void (*imx_idle)(void); - static inline void arch_idle(void) { - if (imx_idle != NULL) - (imx_idle)(); - else - cpu_do_idle(); + cpu_do_idle(); } void arch_reset(char mode, const char *cmd); diff --git a/arch/arm/plat-mxc/system.c b/arch/arm/plat-mxc/system.c index 9dad8dcc2ea9..a0bcccf9b640 100644 --- a/arch/arm/plat-mxc/system.c +++ b/arch/arm/plat-mxc/system.c @@ -28,7 +28,6 @@ #include #include -void (*imx_idle)(void) = NULL; void __iomem *(*imx_ioremap)(unsigned long, size_t, unsigned int) = NULL; static void __iomem *wdog_base; From e9b7086b80c4d9e354f4edc9e280ae85a60df408 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 11 Nov 2011 10:15:11 -0800 Subject: [PATCH 048/207] ARM: OMAP: Fix reprogramming of dpll1 rate Commit a66cb3454f220f49f900646ebdc76cb943319eb7 (ARM: OMAP: Map SRAM later on with ioremap_exec()) moved the SRAM init to happen later to remove a dependency to early SoC detection for map_io. This broke booting on some boards not using Kconfig option for OMAP_CLOCKS_SET_BY_BOOTLOADER as the dpll1 reprogramming would cause the following error: kernel BUG at arch/arm/plat-omap/sram.c:226! Internal error: Oops - undefined instruction: 0 [#1] PREEMPT Modules linked in: CPU: 0 Not tainted (3.2.0-rc1-e3 #9) PC is at omap_sram_reprogram_clock+0x28/0x30 LR is at omap1_select_table_rate+0x88/0xb4 pc : [] lr : [] psr: 600000d3 sp : c035bf10 ip : c035bf20 fp : c035bf1c r10: c035bfd4 r9 : 54029252 r8 : c03f8120 r7 : c0362b50 r6 : 00b71b00 r5 : c03873cc r4 : c0362b40 r3 : 00000000 r2 : c0362b40 r1 : 0000010a r0 : 00002cb0 Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel Control: 0000317f Table: 10004000 DAC: 00000017 Process swapper (pid: 0, stack limit = 0xc035a270) Stack: (0xc035bf10 to 0xc035c000) bf00: c035bf3c c035bf20 c0019f54 c001b0ac bf20: 00001000 00002cb3 00000004 c035ed4c c035bf74 c035bf40 c033ea24 c0019edc bf40: c02f526c 00000002 00000015 bc058c9b 93111a16 c035335c 02000000 c035ed4c bf60: c035ed4c c03f8120 c035bf84 c035bf78 c00194c4 c033e8ec c035bfc4 c035bf88 bf80: c033bc24 c00194a0 c035bf90 c035bf98 00000000 00000000 00000000 00000000 bfa0: 00000001 00000000 c0354678 c035ece4 10004000 103532f4 c035bff4 c035bfc8 bfc0: c0338574 c033b598 00000000 00000000 00000000 c035467c 0000317d c035c03c bfe0: c0354678 c035ece4 00000000 c035bff8 10008040 c0338508 00000000 00000000 Backtrace: [] (omap_sram_reprogram_clock+0x0/0x30) from [] (omap1_select_table_rate+0x88/0xb4) [] (omap1_select_table_rate+0x0/0xb4) from [] (omap1_clk_init+0x148/0x334) r7:c035ed4c r6:00000004 r5:00002cb3 r4:00001000 [] (omap1_clk_init+0x0/0x334) from [] (omap1_init_early+0x34/0x48) r8:c03f8120 r7:c035ed4c r6:c035ed4c r5:02000000 r4:c035335c [] (omap1_init_early+0x0/0x48) from [] (setup_arch+0x69c/0x79c) [] (setup_arch+0x0/0x79c) from [] (start_kernel+0x7c/0x2f4) [] (start_kernel+0x0/0x2f4) from [<10008040>] (0x10008040) r7:c035ece4 r6:c0354678 r5:c035c03c r4:0000317d Code: 0a000002 e1a0e00f e12fff13 e89da800 (e7f001f2) Fix this by adding omap1_clk_late_init() that only reprograms dpll1 if the bootloader rate is less than 60MHz. This also allows removing of the OMAP_CLOCKS_SET_BY_BOOTLOADER option. Reported-by: Aaro Koskinen Tested-by: Aaro Koskinen Signed-off-by: Tony Lindgren --- arch/arm/configs/omap1_defconfig | 1 - arch/arm/mach-omap1/Kconfig | 8 ----- arch/arm/mach-omap1/clock.h | 3 +- arch/arm/mach-omap1/clock_data.c | 53 ++++++++++++++++++++------------ arch/arm/mach-omap1/devices.c | 3 ++ 5 files changed, 39 insertions(+), 29 deletions(-) diff --git a/arch/arm/configs/omap1_defconfig b/arch/arm/configs/omap1_defconfig index 7b63462b349d..a7e777581378 100644 --- a/arch/arm/configs/omap1_defconfig +++ b/arch/arm/configs/omap1_defconfig @@ -48,7 +48,6 @@ CONFIG_MACH_SX1=y CONFIG_MACH_NOKIA770=y CONFIG_MACH_AMS_DELTA=y CONFIG_MACH_OMAP_GENERIC=y -CONFIG_OMAP_CLOCKS_SET_BY_BOOTLOADER=y CONFIG_OMAP_ARM_216MHZ=y CONFIG_OMAP_ARM_195MHZ=y CONFIG_OMAP_ARM_192MHZ=y diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig index e0a028161dde..73f287d6429b 100644 --- a/arch/arm/mach-omap1/Kconfig +++ b/arch/arm/mach-omap1/Kconfig @@ -171,14 +171,6 @@ config MACH_OMAP_GENERIC comment "OMAP CPU Speed" depends on ARCH_OMAP1 -config OMAP_CLOCKS_SET_BY_BOOTLOADER - bool "OMAP clocks set by bootloader" - depends on ARCH_OMAP1 - help - Enable this option to prevent the kernel from overriding the clock - frequencies programmed by bootloader for MPU, DSP, MMUs, TC, - internal LCD controller and MPU peripherals. - config OMAP_ARM_216MHZ bool "OMAP ARM 216 MHz CPU (1710 only)" depends on ARCH_OMAP1 && ARCH_OMAP16XX diff --git a/arch/arm/mach-omap1/clock.h b/arch/arm/mach-omap1/clock.h index eaf09efb91ca..16b1423b454a 100644 --- a/arch/arm/mach-omap1/clock.h +++ b/arch/arm/mach-omap1/clock.h @@ -17,7 +17,8 @@ #include -extern int __init omap1_clk_init(void); +int omap1_clk_init(void); +void omap1_clk_late_init(void); extern int omap1_clk_enable(struct clk *clk); extern void omap1_clk_disable(struct clk *clk); extern long omap1_clk_round_rate(struct clk *clk, unsigned long rate); diff --git a/arch/arm/mach-omap1/clock_data.c b/arch/arm/mach-omap1/clock_data.c index 92400b9eb69f..1297bb58869c 100644 --- a/arch/arm/mach-omap1/clock_data.c +++ b/arch/arm/mach-omap1/clock_data.c @@ -767,6 +767,15 @@ static struct clk_functions omap1_clk_functions = { .clk_disable_unused = omap1_clk_disable_unused, }; +static void __init omap1_show_rates(void) +{ + pr_notice("Clocking rate (xtal/DPLL1/MPU): " + "%ld.%01ld/%ld.%01ld/%ld.%01ld MHz\n", + ck_ref.rate / 1000000, (ck_ref.rate / 100000) % 10, + ck_dpll1.rate / 1000000, (ck_dpll1.rate / 100000) % 10, + arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10); +} + int __init omap1_clk_init(void) { struct omap_clk *c; @@ -835,9 +844,12 @@ int __init omap1_clk_init(void) /* We want to be in syncronous scalable mode */ omap_writew(0x1000, ARM_SYSST); -#ifdef CONFIG_OMAP_CLOCKS_SET_BY_BOOTLOADER - /* Use values set by bootloader. Determine PLL rate and recalculate - * dependent clocks as if kernel had changed PLL or divisors. + + /* + * Initially use the values set by bootloader. Determine PLL rate and + * recalculate dependent clocks as if kernel had changed PLL or + * divisors. See also omap1_clk_late_init() that can reprogram dpll1 + * after the SRAM is initialized. */ { unsigned pll_ctl_val = omap_readw(DPLL_CTL); @@ -862,25 +874,10 @@ int __init omap1_clk_init(void) } } } -#else - /* Find the highest supported frequency and enable it */ - if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) { - printk(KERN_ERR "System frequencies not set. Check your config.\n"); - /* Guess sane values (60MHz) */ - omap_writew(0x2290, DPLL_CTL); - omap_writew(cpu_is_omap7xx() ? 0x3005 : 0x1005, ARM_CKCTL); - ck_dpll1.rate = 60000000; - } -#endif propagate_rate(&ck_dpll1); /* Cache rates for clocks connected to ck_ref (not dpll1) */ propagate_rate(&ck_ref); - printk(KERN_INFO "Clocking rate (xtal/DPLL1/MPU): " - "%ld.%01ld/%ld.%01ld/%ld.%01ld MHz\n", - ck_ref.rate / 1000000, (ck_ref.rate / 100000) % 10, - ck_dpll1.rate / 1000000, (ck_dpll1.rate / 100000) % 10, - arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10); - + omap1_show_rates(); if (machine_is_omap_perseus2() || machine_is_omap_fsample()) { /* Select slicer output as OMAP input clock */ omap_writew(omap_readw(OMAP7XX_PCC_UPLD_CTRL) & ~0x1, @@ -925,3 +922,21 @@ int __init omap1_clk_init(void) return 0; } + +#define OMAP1_DPLL1_SANE_VALUE 60000000 + +void __init omap1_clk_late_init(void) +{ + if (ck_dpll1.rate >= OMAP1_DPLL1_SANE_VALUE) + return; + + /* Find the highest supported frequency and enable it */ + if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) { + pr_err("System frequencies not set, using default. Check your config.\n"); + omap_writew(0x2290, DPLL_CTL); + omap_writew(cpu_is_omap7xx() ? 0x3005 : 0x1005, ARM_CKCTL); + ck_dpll1.rate = OMAP1_DPLL1_SANE_VALUE; + } + propagate_rate(&ck_dpll1); + omap1_show_rates(); +} diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c index 48ef9888e820..475cb2f50d87 100644 --- a/arch/arm/mach-omap1/devices.c +++ b/arch/arm/mach-omap1/devices.c @@ -30,6 +30,8 @@ #include #include +#include "clock.h" + /*-------------------------------------------------------------------------*/ #if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE) @@ -293,6 +295,7 @@ static int __init omap1_init_devices(void) return -ENODEV; omap_sram_init(); + omap1_clk_late_init(); /* please keep these calls, and their implementations above, * in alphabetical order so they're easier to sort through. From 22f4cb4bd06db14912f69039917422fe0c5b11fb Mon Sep 17 00:00:00 2001 From: Haojian Zhuang Date: Wed, 9 Nov 2011 10:47:21 +0800 Subject: [PATCH 049/207] ARM: mmp: fix build error on gpio MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Parameters of GPIO_REG() should be assigned as volatile. arch/arm/plat-pxa/include/plat/gpio.h: In function ‘gpio_get_value’: arch/arm/plat-pxa/include/plat/gpio.h:12:21: error: invalid operands to binary & (have ‘void *’ and ‘int’) arch/arm/plat-pxa/include/plat/gpio.h: In function ‘gpio_set_value’: arch/arm/plat-pxa/include/plat/gpio.h:21:4: error: lvalue required as left operand of assignment arch/arm/plat-pxa/include/plat/gpio.h:23:4: error: lvalue required as left operand of assignment Signed-off-by: Haojian Zhuang Signed-off-by: Eric Miao --- arch/arm/mach-mmp/include/mach/gpio-pxa.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-mmp/include/mach/gpio-pxa.h b/arch/arm/mach-mmp/include/mach/gpio-pxa.h index d14eeaf16322..99b4ce1b6562 100644 --- a/arch/arm/mach-mmp/include/mach/gpio-pxa.h +++ b/arch/arm/mach-mmp/include/mach/gpio-pxa.h @@ -7,7 +7,7 @@ #define GPIO_REGS_VIRT (APB_VIRT_BASE + 0x19000) #define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) -#define GPIO_REG(x) (GPIO_REGS_VIRT + (x)) +#define GPIO_REG(x) (*(volatile u32 *)(GPIO_REGS_VIRT + (x))) #define NR_BUILTIN_GPIO IRQ_GPIO_NUM From 54dc6cabe684375b3cf549c7b0545613d694aba8 Mon Sep 17 00:00:00 2001 From: Johannes Stezenbach Date: Mon, 14 Nov 2011 17:23:16 +0100 Subject: [PATCH 050/207] ASoC: sta32x: preserve coefficient RAM The coefficient RAM must be saved in a shadow so it can be restored when the codec is powered on using regulator_bulk_enable(). Signed-off-by: Johannes Stezenbach Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- sound/soc/codecs/sta32x.c | 63 ++++++++++++++++++++++++++++++++++++++- sound/soc/codecs/sta32x.h | 1 + 2 files changed, 63 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c index bb82408ab8e1..d2f37152f940 100644 --- a/sound/soc/codecs/sta32x.c +++ b/sound/soc/codecs/sta32x.c @@ -76,6 +76,8 @@ struct sta32x_priv { unsigned int mclk; unsigned int format; + + u32 coef_shadow[STA32X_COEF_COUNT]; }; static const DECLARE_TLV_DB_SCALE(mvol_tlv, -12700, 50, 1); @@ -227,6 +229,7 @@ static int sta32x_coefficient_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec); int numcoef = kcontrol->private_value >> 16; int index = kcontrol->private_value & 0xffff; unsigned int cfud; @@ -239,6 +242,11 @@ static int sta32x_coefficient_put(struct snd_kcontrol *kcontrol, snd_soc_write(codec, STA32X_CFUD, cfud); snd_soc_write(codec, STA32X_CFADDR2, index); + for (i = 0; i < numcoef && (index + i < STA32X_COEF_COUNT); i++) + sta32x->coef_shadow[index + i] = + (ucontrol->value.bytes.data[3 * i] << 16) + | (ucontrol->value.bytes.data[3 * i + 1] << 8) + | (ucontrol->value.bytes.data[3 * i + 2]); for (i = 0; i < 3 * numcoef; i++) snd_soc_write(codec, STA32X_B1CF1 + i, ucontrol->value.bytes.data[i]); @@ -252,6 +260,48 @@ static int sta32x_coefficient_put(struct snd_kcontrol *kcontrol, return 0; } +int sta32x_sync_coef_shadow(struct snd_soc_codec *codec) +{ + struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec); + unsigned int cfud; + int i; + + /* preserve reserved bits in STA32X_CFUD */ + cfud = snd_soc_read(codec, STA32X_CFUD) & 0xf0; + + for (i = 0; i < STA32X_COEF_COUNT; i++) { + snd_soc_write(codec, STA32X_CFADDR2, i); + snd_soc_write(codec, STA32X_B1CF1, + (sta32x->coef_shadow[i] >> 16) & 0xff); + snd_soc_write(codec, STA32X_B1CF2, + (sta32x->coef_shadow[i] >> 8) & 0xff); + snd_soc_write(codec, STA32X_B1CF3, + (sta32x->coef_shadow[i]) & 0xff); + /* chip documentation does not say if the bits are + * self-clearing, so do it explicitly */ + snd_soc_write(codec, STA32X_CFUD, cfud); + snd_soc_write(codec, STA32X_CFUD, cfud | 0x01); + } + return 0; +} + +int sta32x_cache_sync(struct snd_soc_codec *codec) +{ + unsigned int mute; + int rc; + + if (!codec->cache_sync) + return 0; + + /* mute during register sync */ + mute = snd_soc_read(codec, STA32X_MMUTE); + snd_soc_write(codec, STA32X_MMUTE, mute | STA32X_MMUTE_MMUTE); + sta32x_sync_coef_shadow(codec); + rc = snd_soc_cache_sync(codec); + snd_soc_write(codec, STA32X_MMUTE, mute); + return rc; +} + #define SINGLE_COEF(xname, index) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = sta32x_coefficient_info, \ @@ -661,7 +711,7 @@ static int sta32x_set_bias_level(struct snd_soc_codec *codec, return ret; } - snd_soc_cache_sync(codec); + sta32x_cache_sync(codec); } /* Power up to mute */ @@ -790,6 +840,17 @@ static int sta32x_probe(struct snd_soc_codec *codec) STA32X_CxCFG_OM_MASK, 2 << STA32X_CxCFG_OM_SHIFT); + /* initialize coefficient shadow RAM with reset values */ + for (i = 4; i <= 49; i += 5) + sta32x->coef_shadow[i] = 0x400000; + for (i = 50; i <= 54; i++) + sta32x->coef_shadow[i] = 0x7fffff; + sta32x->coef_shadow[55] = 0x5a9df7; + sta32x->coef_shadow[56] = 0x7fffff; + sta32x->coef_shadow[59] = 0x7fffff; + sta32x->coef_shadow[60] = 0x400000; + sta32x->coef_shadow[61] = 0x400000; + sta32x_set_bias_level(codec, SND_SOC_BIAS_STANDBY); /* Bias level configuration will have done an extra enable */ regulator_bulk_disable(ARRAY_SIZE(sta32x->supplies), sta32x->supplies); diff --git a/sound/soc/codecs/sta32x.h b/sound/soc/codecs/sta32x.h index b97ee5a75667..d8e32a6262ee 100644 --- a/sound/soc/codecs/sta32x.h +++ b/sound/soc/codecs/sta32x.h @@ -19,6 +19,7 @@ /* STA326 register addresses */ #define STA32X_REGISTER_COUNT 0x2d +#define STA32X_COEF_COUNT 62 #define STA32X_CONFA 0x00 #define STA32X_CONFB 0x01 From 7db3eba6bf84ab744e39dcce24b7e06d01bab913 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Tue, 18 Oct 2011 16:58:05 +0900 Subject: [PATCH 051/207] drm/exynos: added kms poll for handling hpd event this patch adds kms poll infrastructure to handle hotplug detection event Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_drv.c | 5 +++++ drivers/gpu/drm/exynos/exynos_drm_fb.c | 12 ++++++++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index 83810cbe3c17..53e2216de61d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -27,6 +27,7 @@ #include "drmP.h" #include "drm.h" +#include "drm_crtc_helper.h" #include @@ -61,6 +62,9 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags) drm_mode_config_init(dev); + /* init kms poll for handling hpd */ + drm_kms_helper_poll_init(dev); + exynos_drm_mode_config_init(dev); /* @@ -116,6 +120,7 @@ static int exynos_drm_unload(struct drm_device *dev) exynos_drm_fbdev_fini(dev); exynos_drm_device_unregister(dev); drm_vblank_cleanup(dev); + drm_kms_helper_poll_fini(dev); drm_mode_config_cleanup(dev); kfree(dev->dev_private); diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c index 48d29cfd5240..7d91a542c756 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fb.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c @@ -29,7 +29,9 @@ #include "drmP.h" #include "drm_crtc.h" #include "drm_crtc_helper.h" +#include "drm_fb_helper.h" +#include "exynos_drm_drv.h" #include "exynos_drm_fb.h" #include "exynos_drm_buf.h" #include "exynos_drm_gem.h" @@ -238,8 +240,18 @@ struct exynos_drm_buf_entry *exynos_drm_fb_get_buf(struct drm_framebuffer *fb) return entry; } +static void exynos_drm_output_poll_changed(struct drm_device *dev) +{ + struct exynos_drm_private *private = dev->dev_private; + struct drm_fb_helper *fb_helper = private->fb_helper; + + if (fb_helper) + drm_fb_helper_hotplug_event(fb_helper); +} + static struct drm_mode_config_funcs exynos_drm_mode_config_funcs = { .fb_create = exynos_drm_fb_create, + .output_poll_changed = exynos_drm_output_poll_changed, }; void exynos_drm_mode_config_init(struct drm_device *dev) From 1b17b206560c433ae9e8f8409f3f3842949a74c8 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Wed, 19 Oct 2011 15:10:10 +0900 Subject: [PATCH 052/207] drm/exynos: fixed connector flag with hpd and interlace scan for hdmi hdmi display in exynos supports hotplug event and interlace scan mode Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_connector.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c index 985d9e768728..d1a459fdbe92 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_connector.c +++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c @@ -254,6 +254,8 @@ struct drm_connector *exynos_drm_connector_create(struct drm_device *dev, switch (manager->display->type) { case EXYNOS_DISPLAY_TYPE_HDMI: type = DRM_MODE_CONNECTOR_HDMIA; + connector->interlace_allowed = true; + connector->polled = DRM_CONNECTOR_POLL_HPD; break; default: type = DRM_MODE_CONNECTOR_Unknown; From 8b58dfe0290cb57e3f8601b197f00c23fa39a60d Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Wed, 19 Oct 2011 15:11:55 +0900 Subject: [PATCH 053/207] drm/exynos: fixed converting between display mode and timing missing members are added into converting function between timing and display mode and refresh rate of display mode is calculated by drm mode function. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_connector.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c index d1a459fdbe92..7ca1274775b7 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_connector.c +++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c @@ -47,6 +47,7 @@ convert_to_display_mode(struct drm_display_mode *mode, DRM_DEBUG_KMS("%s\n", __FILE__); mode->clock = timing->pixclock / 1000; + mode->vrefresh = timing->refresh; mode->hdisplay = timing->xres; mode->hsync_start = mode->hdisplay + timing->left_margin; @@ -57,6 +58,12 @@ convert_to_display_mode(struct drm_display_mode *mode, mode->vsync_start = mode->vdisplay + timing->upper_margin; mode->vsync_end = mode->vsync_start + timing->vsync_len; mode->vtotal = mode->vsync_end + timing->lower_margin; + + if (timing->vmode & FB_VMODE_INTERLACED) + mode->flags |= DRM_MODE_FLAG_INTERLACE; + + if (timing->vmode & FB_VMODE_DOUBLE) + mode->flags |= DRM_MODE_FLAG_DBLSCAN; } /* convert drm_display_mode to exynos_video_timings */ @@ -69,7 +76,7 @@ convert_to_video_timing(struct fb_videomode *timing, memset(timing, 0, sizeof(*timing)); timing->pixclock = mode->clock * 1000; - timing->refresh = mode->vrefresh; + timing->refresh = drm_mode_vrefresh(mode); timing->xres = mode->hdisplay; timing->left_margin = mode->hsync_start - mode->hdisplay; From adb6b1596743e93e50fad2ff26d9604cda4361ab Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Wed, 19 Oct 2011 17:16:55 +0900 Subject: [PATCH 054/207] drm/exynos: added manager object to connector connector contains some contents for display controller so the connector also should be able to access controller through manager. Signed-off-by: Inki Dae Signed-off-by: Seung-Woo Kim Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_connector.c | 38 +++++++++++++++---- drivers/gpu/drm/exynos/exynos_drm_encoder.c | 3 +- 2 files changed, 33 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c index 7ca1274775b7..d33f8039a882 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_connector.c +++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c @@ -37,6 +37,8 @@ struct exynos_drm_connector { struct drm_connector drm_connector; + uint32_t encoder_id; + struct exynos_drm_manager *manager; }; /* convert exynos_video_timings to drm_display_mode */ @@ -99,8 +101,9 @@ convert_to_video_timing(struct fb_videomode *timing, static int exynos_drm_connector_get_modes(struct drm_connector *connector) { - struct exynos_drm_manager *manager = - exynos_drm_get_manager(connector->encoder); + struct exynos_drm_connector *exynos_connector = + to_exynos_connector(connector); + struct exynos_drm_manager *manager = exynos_connector->manager; struct exynos_drm_display *display = manager->display; unsigned int count; @@ -169,8 +172,9 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector) static int exynos_drm_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { - struct exynos_drm_manager *manager = - exynos_drm_get_manager(connector->encoder); + struct exynos_drm_connector *exynos_connector = + to_exynos_connector(connector); + struct exynos_drm_manager *manager = exynos_connector->manager; struct exynos_drm_display *display = manager->display; struct fb_videomode timing; int ret = MODE_BAD; @@ -188,9 +192,25 @@ static int exynos_drm_connector_mode_valid(struct drm_connector *connector, struct drm_encoder *exynos_drm_best_encoder(struct drm_connector *connector) { + struct drm_device *dev = connector->dev; + struct exynos_drm_connector *exynos_connector = + to_exynos_connector(connector); + struct drm_mode_object *obj; + struct drm_encoder *encoder; + DRM_DEBUG_KMS("%s\n", __FILE__); - return connector->encoder; + obj = drm_mode_object_find(dev, exynos_connector->encoder_id, + DRM_MODE_OBJECT_ENCODER); + if (!obj) { + DRM_DEBUG_KMS("Unknown ENCODER ID %d\n", + exynos_connector->encoder_id); + return NULL; + } + + encoder = obj_to_encoder(obj); + + return encoder; } static struct drm_connector_helper_funcs exynos_connector_helper_funcs = { @@ -203,8 +223,9 @@ static struct drm_connector_helper_funcs exynos_connector_helper_funcs = { static enum drm_connector_status exynos_drm_connector_detect(struct drm_connector *connector, bool force) { - struct exynos_drm_manager *manager = - exynos_drm_get_manager(connector->encoder); + struct exynos_drm_connector *exynos_connector = + to_exynos_connector(connector); + struct exynos_drm_manager *manager = exynos_connector->manager; struct exynos_drm_display *display = manager->display; enum drm_connector_status status = connector_status_disconnected; @@ -276,7 +297,10 @@ struct drm_connector *exynos_drm_connector_create(struct drm_device *dev, if (err) goto err_connector; + exynos_connector->encoder_id = encoder->base.id; + exynos_connector->manager = manager; connector->encoder = encoder; + err = drm_mode_connector_attach_encoder(connector, encoder); if (err) { DRM_ERROR("failed to attach a connector to a encoder\n"); diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index 7cf6fa86a67e..4e5535b2b8e3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -58,7 +58,8 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) list_for_each_entry(connector, &dev->mode_config.connector_list, head) { if (connector->encoder == encoder) { - struct exynos_drm_display *display = manager->display; + struct exynos_drm_display *display = + manager->display; if (display && display->power_on) display->power_on(manager->dev, mode); From 74ccc539bcebdb24afb74194223f92a96a7285ed Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Wed, 19 Oct 2011 17:23:07 +0900 Subject: [PATCH 055/207] drm/exynos: changed exynos_drm_display to exynos_drm_display_ops exynos_drm_display has function pointes so exynos_drm_display_ops is better to describe. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_connector.c | 29 ++++++++++--------- drivers/gpu/drm/exynos/exynos_drm_drv.h | 4 +-- drivers/gpu/drm/exynos/exynos_drm_encoder.c | 8 ++--- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 4 +-- 4 files changed, 23 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c index d33f8039a882..d620b0784257 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_connector.c +++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c @@ -104,13 +104,13 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector) struct exynos_drm_connector *exynos_connector = to_exynos_connector(connector); struct exynos_drm_manager *manager = exynos_connector->manager; - struct exynos_drm_display *display = manager->display; + struct exynos_drm_display_ops *display_ops = manager->display_ops; unsigned int count; DRM_DEBUG_KMS("%s\n", __FILE__); - if (!display) { - DRM_DEBUG_KMS("display is null.\n"); + if (!display_ops) { + DRM_DEBUG_KMS("display_ops is null.\n"); return 0; } @@ -122,7 +122,7 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector) * P.S. in case of lcd panel, count is always 1 if success * because lcd panel has only one mode. */ - if (display->get_edid) { + if (display_ops->get_edid) { int ret; void *edid; @@ -132,7 +132,7 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector) return 0; } - ret = display->get_edid(manager->dev, connector, + ret = display_ops->get_edid(manager->dev, connector, edid, MAX_EDID); if (ret < 0) { DRM_ERROR("failed to get edid data.\n"); @@ -150,8 +150,8 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector) struct drm_display_mode *mode = drm_mode_create(connector->dev); struct fb_videomode *timing; - if (display->get_timing) - timing = display->get_timing(manager->dev); + if (display_ops->get_timing) + timing = display_ops->get_timing(manager->dev); else { drm_mode_destroy(connector->dev, mode); return 0; @@ -175,7 +175,7 @@ static int exynos_drm_connector_mode_valid(struct drm_connector *connector, struct exynos_drm_connector *exynos_connector = to_exynos_connector(connector); struct exynos_drm_manager *manager = exynos_connector->manager; - struct exynos_drm_display *display = manager->display; + struct exynos_drm_display_ops *display_ops = manager->display_ops; struct fb_videomode timing; int ret = MODE_BAD; @@ -183,8 +183,8 @@ static int exynos_drm_connector_mode_valid(struct drm_connector *connector, convert_to_video_timing(&timing, mode); - if (display && display->check_timing) - if (!display->check_timing(manager->dev, (void *)&timing)) + if (display_ops && display_ops->check_timing) + if (!display_ops->check_timing(manager->dev, (void *)&timing)) ret = MODE_OK; return ret; @@ -226,13 +226,14 @@ exynos_drm_connector_detect(struct drm_connector *connector, bool force) struct exynos_drm_connector *exynos_connector = to_exynos_connector(connector); struct exynos_drm_manager *manager = exynos_connector->manager; - struct exynos_drm_display *display = manager->display; + struct exynos_drm_display_ops *display_ops = + manager->display_ops; enum drm_connector_status status = connector_status_disconnected; DRM_DEBUG_KMS("%s\n", __FILE__); - if (display && display->is_connected) { - if (display->is_connected(manager->dev)) + if (display_ops && display_ops->is_connected) { + if (display_ops->is_connected(manager->dev)) status = connector_status_connected; else status = connector_status_disconnected; @@ -279,7 +280,7 @@ struct drm_connector *exynos_drm_connector_create(struct drm_device *dev, connector = &exynos_connector->drm_connector; - switch (manager->display->type) { + switch (manager->display_ops->type) { case EXYNOS_DISPLAY_TYPE_HDMI: type = DRM_MODE_CONNECTOR_HDMIA; connector->interlace_allowed = true; diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index c03683f2ae72..1575e5fef51e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -130,7 +130,7 @@ struct exynos_drm_overlay { * @check_timing: check if timing is valid or not. * @power_on: display device on or off. */ -struct exynos_drm_display { +struct exynos_drm_display_ops { enum exynos_drm_output_type type; bool (*is_connected)(struct device *dev); int (*get_edid)(struct device *dev, struct drm_connector *connector, @@ -178,7 +178,7 @@ struct exynos_drm_manager { int pipe; struct exynos_drm_manager_ops *ops; struct exynos_drm_overlay_ops *overlay_ops; - struct exynos_drm_display *display; + struct exynos_drm_display_ops *display_ops; }; /* diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index 4e5535b2b8e3..0034fa7a58db 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -58,11 +58,11 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) list_for_each_entry(connector, &dev->mode_config.connector_list, head) { if (connector->encoder == encoder) { - struct exynos_drm_display *display = - manager->display; + struct exynos_drm_display_ops *display_ops = + manager->display_ops; - if (display && display->power_on) - display->power_on(manager->dev, mode); + if (display_ops && display_ops->power_on) + display_ops->power_on(manager->dev, mode); } } } diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 4659c88cdd9b..f2d883f2999e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -124,7 +124,7 @@ static int fimd_display_power_on(struct device *dev, int mode) return 0; } -static struct exynos_drm_display fimd_display = { +static struct exynos_drm_display_ops fimd_display_ops = { .type = EXYNOS_DISPLAY_TYPE_LCD, .is_connected = fimd_display_is_connected, .get_timing = fimd_get_timing, @@ -731,7 +731,7 @@ static int __devinit fimd_probe(struct platform_device *pdev) subdrv->manager.pipe = -1; subdrv->manager.ops = &fimd_manager_ops; subdrv->manager.overlay_ops = &fimd_overlay_ops; - subdrv->manager.display = &fimd_display; + subdrv->manager.display_ops = &fimd_display_ops; subdrv->manager.dev = dev; platform_set_drvdata(pdev, ctx); From 84b46990cb2caf8efe20d5626e1d7e2e40bab832 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Fri, 4 Nov 2011 13:41:46 +0900 Subject: [PATCH 056/207] drm/exynos: restored kernel_fb_list when reiniting fb_helper during recreating exynos_drm_fbdev as a new display device probes, fb_helper is reinitialized but kernel fb is not changed so kernel_fb_list should be restored after fb_helper is reinitialized. Signed-off-by: Joonyoung Shim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 1f4b3d1a7713..74092a81c180 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -405,6 +405,18 @@ int exynos_drm_fbdev_reinit(struct drm_device *dev) fb_helper = private->fb_helper; if (fb_helper) { + struct list_head temp_list; + + INIT_LIST_HEAD(&temp_list); + + /* + * fb_helper is reintialized but kernel fb is reused + * so kernel_fb_list need to be backuped and restored + */ + if (!list_empty(&fb_helper->kernel_fb_list)) + list_replace_init(&fb_helper->kernel_fb_list, + &temp_list); + drm_fb_helper_fini(fb_helper); ret = drm_fb_helper_init(dev, fb_helper, @@ -414,6 +426,9 @@ int exynos_drm_fbdev_reinit(struct drm_device *dev) return ret; } + if (!list_empty(&temp_list)) + list_replace(&temp_list, &fb_helper->kernel_fb_list); + ret = drm_fb_helper_single_add_all_connectors(fb_helper); if (ret < 0) { DRM_ERROR("failed to add fb helper to connectors\n"); From aa6b2b6cd43e4a23c2a220382a8b385b087d8bca Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Fri, 4 Nov 2011 13:44:38 +0900 Subject: [PATCH 057/207] drm/exynos: removed meaningless parameter from fbdev update drm_framebuffer already has width and height so they are meaningless as parameters when updating fb_info. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 74092a81c180..0effd77d569b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -85,15 +85,13 @@ static struct fb_ops exynos_drm_fb_ops = { }; static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, - struct drm_framebuffer *fb, - unsigned int fb_width, - unsigned int fb_height) + struct drm_framebuffer *fb) { struct fb_info *fbi = helper->fbdev; struct drm_device *dev = helper->dev; struct exynos_drm_fbdev *exynos_fb = to_exynos_fbdev(helper); struct exynos_drm_buf_entry *entry; - unsigned int size = fb_width * fb_height * (fb->bits_per_pixel >> 3); + unsigned int size = fb->width * fb->height * (fb->bits_per_pixel >> 3); unsigned long offset; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -101,7 +99,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, exynos_fb->fb = fb; drm_fb_helper_fill_fix(fbi, fb->pitch, fb->depth); - drm_fb_helper_fill_var(fbi, helper, fb_width, fb_height); + drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height); entry = exynos_drm_fb_get_buf(fb); if (!entry) { @@ -171,8 +169,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper, goto out; } - ret = exynos_drm_fbdev_update(helper, helper->fb, sizes->fb_width, - sizes->fb_height); + ret = exynos_drm_fbdev_update(helper, helper->fb); if (ret < 0) fb_dealloc_cmap(&fbi->cmap); @@ -235,8 +232,7 @@ static int exynos_drm_fbdev_recreate(struct drm_fb_helper *helper, } helper->fb = exynos_fbdev->fb; - return exynos_drm_fbdev_update(helper, helper->fb, sizes->fb_width, - sizes->fb_height); + return exynos_drm_fbdev_update(helper, helper->fb); } static int exynos_drm_fbdev_probe(struct drm_fb_helper *helper, From d2716c896d305fb5d3d0d7f58394c17841ed2967 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Fri, 4 Nov 2011 17:04:45 +0900 Subject: [PATCH 058/207] drm/exynos: added crtc dpms for disable crtc crtc dpms is called as destroying attached fb so dpms off sould be processed. crtc dpms also can be called after crtc is detached from encoder so pipe value of manager is used to find display controller for this case Signed-off-by: Joonyoung Shim Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_crtc.c | 29 +++++++++-- drivers/gpu/drm/exynos/exynos_drm_encoder.c | 54 ++++++++++++++++++--- drivers/gpu/drm/exynos/exynos_drm_encoder.h | 1 + 3 files changed, 73 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index 9337e5e2dbb6..b1d6526340bb 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -85,7 +85,8 @@ static void exynos_drm_crtc_apply(struct drm_crtc *crtc) exynos_drm_fn_encoder(crtc, overlay, exynos_drm_encoder_crtc_mode_set); - exynos_drm_fn_encoder(crtc, NULL, exynos_drm_encoder_crtc_commit); + exynos_drm_fn_encoder(crtc, &exynos_crtc->pipe, + exynos_drm_encoder_crtc_commit); } static int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay, @@ -171,9 +172,26 @@ static int exynos_drm_crtc_update(struct drm_crtc *crtc) static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode) { - DRM_DEBUG_KMS("%s\n", __FILE__); + struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); - /* TODO */ + DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode); + + switch (mode) { + case DRM_MODE_DPMS_ON: + exynos_drm_fn_encoder(crtc, &exynos_crtc->pipe, + exynos_drm_encoder_crtc_commit); + break; + case DRM_MODE_DPMS_STANDBY: + case DRM_MODE_DPMS_SUSPEND: + case DRM_MODE_DPMS_OFF: + /* TODO */ + exynos_drm_fn_encoder(crtc, NULL, + exynos_drm_encoder_crtc_disable); + break; + default: + DRM_DEBUG_KMS("unspecified mode %d\n", mode); + break; + } } static void exynos_drm_crtc_prepare(struct drm_crtc *crtc) @@ -185,9 +203,12 @@ static void exynos_drm_crtc_prepare(struct drm_crtc *crtc) static void exynos_drm_crtc_commit(struct drm_crtc *crtc) { + struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); + DRM_DEBUG_KMS("%s\n", __FILE__); - /* drm framework doesn't check NULL. */ + exynos_drm_fn_encoder(crtc, &exynos_crtc->pipe, + exynos_drm_encoder_crtc_commit); } static bool diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index 0034fa7a58db..f15da9581a1e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -61,6 +61,8 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) struct exynos_drm_display_ops *display_ops = manager->display_ops; + DRM_DEBUG_KMS("connector[%d] dpms[%d]\n", + connector->base.id, mode); if (display_ops && display_ops->power_on) display_ops->power_on(manager->dev, mode); } @@ -117,15 +119,11 @@ static void exynos_drm_encoder_commit(struct drm_encoder *encoder) { struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); struct exynos_drm_manager_ops *manager_ops = manager->ops; - struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops; DRM_DEBUG_KMS("%s\n", __FILE__); if (manager_ops && manager_ops->commit) manager_ops->commit(manager->dev); - - if (overlay_ops && overlay_ops->commit) - overlay_ops->commit(manager->dev); } static struct drm_crtc * @@ -209,10 +207,23 @@ void exynos_drm_fn_encoder(struct drm_crtc *crtc, void *data, { struct drm_device *dev = crtc->dev; struct drm_encoder *encoder; + struct exynos_drm_private *private = dev->dev_private; + struct exynos_drm_manager *manager; list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - if (encoder->crtc != crtc) - continue; + /* + * if crtc is detached from encoder, check pipe, + * otherwise check crtc attached to encoder + */ + if (!encoder->crtc) { + manager = to_exynos_encoder(encoder)->manager; + if (manager->pipe < 0 || + private->crtc[manager->pipe] != crtc) + continue; + } else { + if (encoder->crtc != crtc) + continue; + } fn(encoder, data); } @@ -251,8 +262,18 @@ void exynos_drm_encoder_crtc_commit(struct drm_encoder *encoder, void *data) struct exynos_drm_manager *manager = to_exynos_encoder(encoder)->manager; struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops; + int crtc = *(int *)data; - overlay_ops->commit(manager->dev); + DRM_DEBUG_KMS("%s\n", __FILE__); + + /* + * when crtc is detached from encoder, this pipe is used + * to select manager operation + */ + manager->pipe = crtc; + + if (overlay_ops && overlay_ops->commit) + overlay_ops->commit(manager->dev); } void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data) @@ -265,6 +286,25 @@ void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data) overlay_ops->mode_set(manager->dev, overlay); } +void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data) +{ + struct exynos_drm_manager *manager = + to_exynos_encoder(encoder)->manager; + struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops; + + DRM_DEBUG_KMS("\n"); + + overlay_ops->disable(manager->dev); + + /* + * crtc is already detached from encoder and last + * function for detaching is properly done, so + * clear pipe from manager to prevent repeated call + */ + if (!encoder->crtc) + manager->pipe = -1; +} + MODULE_AUTHOR("Inki Dae "); MODULE_AUTHOR("Joonyoung Shim "); MODULE_AUTHOR("Seung-Woo Kim "); diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.h b/drivers/gpu/drm/exynos/exynos_drm_encoder.h index 5ecd645d06a9..a22acfbf0e4e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.h +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.h @@ -41,5 +41,6 @@ void exynos_drm_enable_vblank(struct drm_encoder *encoder, void *data); void exynos_drm_disable_vblank(struct drm_encoder *encoder, void *data); void exynos_drm_encoder_crtc_commit(struct drm_encoder *encoder, void *data); void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data); +void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data); #endif From b0e0f85631f9d905095d2896a952430f5eb0aba1 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Fri, 4 Nov 2011 17:31:41 +0900 Subject: [PATCH 059/207] drm/exynos: checked for null pointer Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_encoder.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index f15da9581a1e..866f419f485b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -283,7 +283,8 @@ void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data) struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops; struct exynos_drm_overlay *overlay = data; - overlay_ops->mode_set(manager->dev, overlay); + if (overlay_ops && overlay_ops->mode_set) + overlay_ops->mode_set(manager->dev, overlay); } void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data) @@ -294,7 +295,8 @@ void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data) DRM_DEBUG_KMS("\n"); - overlay_ops->disable(manager->dev); + if (overlay_ops && overlay_ops->disable) + overlay_ops->disable(manager->dev); /* * crtc is already detached from encoder and last From f088d5a9c5dd22b6559fa3f3939973bc374c977b Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Sat, 12 Nov 2011 14:51:23 +0900 Subject: [PATCH 060/207] drm/exynos: use gem create function generically this patch addes exynos_drm_gem_init() creating and initialzing a gem. allocation functions could use this function to create new gem and it changes size type of exynos_drm_gem_create structure to 64bit and also corrects comments to exynos_drm_gem_create structure. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_fb.c | 6 +- drivers/gpu/drm/exynos/exynos_drm_gem.c | 79 +++++++++++++++---------- drivers/gpu/drm/exynos/exynos_drm_gem.h | 6 +- include/drm/exynos_drm.h | 9 ++- 4 files changed, 59 insertions(+), 41 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c index 7d91a542c756..8d0f66224045 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fb.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c @@ -165,9 +165,9 @@ exynos_drm_fb_init(struct drm_file *file_priv, struct drm_device *dev, goto out; } else { - exynos_gem_obj = exynos_drm_gem_create(file_priv, dev, - size, - &mode_cmd->handle); + exynos_gem_obj = exynos_drm_gem_create(dev, file_priv, + &mode_cmd->handle, + size); if (IS_ERR(exynos_gem_obj)) { ret = PTR_ERR(exynos_gem_obj); goto err_buffer; diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index a8e7a88906ed..bd6ede83b684 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -62,40 +62,28 @@ static unsigned int get_gem_mmap_offset(struct drm_gem_object *obj) return (unsigned int)obj->map_list.hash.key << PAGE_SHIFT; } -struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_file *file_priv, - struct drm_device *dev, unsigned int size, - unsigned int *handle) +static struct exynos_drm_gem_obj + *exynos_drm_gem_init(struct drm_device *drm_dev, + struct drm_file *file_priv, unsigned int *handle, + unsigned int size) { struct exynos_drm_gem_obj *exynos_gem_obj; - struct exynos_drm_buf_entry *entry; struct drm_gem_object *obj; int ret; - DRM_DEBUG_KMS("%s\n", __FILE__); - - size = roundup(size, PAGE_SIZE); - exynos_gem_obj = kzalloc(sizeof(*exynos_gem_obj), GFP_KERNEL); if (!exynos_gem_obj) { DRM_ERROR("failed to allocate exynos gem object.\n"); return ERR_PTR(-ENOMEM); } - /* allocate the new buffer object and memory region. */ - entry = exynos_drm_buf_create(dev, size); - if (!entry) { - kfree(exynos_gem_obj); - return ERR_PTR(-ENOMEM); - } - - exynos_gem_obj->entry = entry; - obj = &exynos_gem_obj->base; - ret = drm_gem_object_init(dev, obj, size); + ret = drm_gem_object_init(drm_dev, obj, size); if (ret < 0) { - DRM_ERROR("failed to initailize gem object.\n"); - goto err_obj_init; + DRM_ERROR("failed to initialize gem object.\n"); + ret = -EINVAL; + goto err_object_init; } DRM_DEBUG_KMS("created file object = 0x%x\n", (unsigned int)obj->filp); @@ -127,24 +115,55 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_file *file_priv, err_create_mmap_offset: drm_gem_object_release(obj); -err_obj_init: - exynos_drm_buf_destroy(dev, exynos_gem_obj->entry); - +err_object_init: kfree(exynos_gem_obj); return ERR_PTR(ret); } +struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, + struct drm_file *file_priv, + unsigned int *handle, unsigned long size) +{ + + struct exynos_drm_gem_obj *exynos_gem_obj = NULL; + struct exynos_drm_buf_entry *entry; + int ret; + + size = roundup(size, PAGE_SIZE); + + DRM_DEBUG_KMS("%s: size = 0x%lx\n", __FILE__, size); + + entry = exynos_drm_buf_create(dev, size); + if (!entry) + return ERR_PTR(-ENOMEM); + + exynos_gem_obj = exynos_drm_gem_init(dev, file_priv, handle, size); + if (IS_ERR(exynos_gem_obj)) { + ret = PTR_ERR(exynos_gem_obj); + goto err_gem_init; + } + + exynos_gem_obj->entry = entry; + + return exynos_gem_obj; + +err_gem_init: + exynos_drm_buf_destroy(dev, exynos_gem_obj->entry); + + return ERR_PTR(ret); +} + int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) + struct drm_file *file_priv) { struct drm_exynos_gem_create *args = data; - struct exynos_drm_gem_obj *exynos_gem_obj; + struct exynos_drm_gem_obj *exynos_gem_obj = NULL; - DRM_DEBUG_KMS("%s : size = 0x%x\n", __FILE__, args->size); + DRM_DEBUG_KMS("%s\n", __FILE__); - exynos_gem_obj = exynos_drm_gem_create(file_priv, dev, args->size, - &args->handle); + exynos_gem_obj = exynos_drm_gem_create(dev, file_priv, + &args->handle, args->size); if (IS_ERR(exynos_gem_obj)) return PTR_ERR(exynos_gem_obj); @@ -302,8 +321,8 @@ int exynos_drm_gem_dumb_create(struct drm_file *file_priv, args->pitch = args->width * args->bpp >> 3; args->size = args->pitch * args->height; - exynos_gem_obj = exynos_drm_gem_create(file_priv, dev, args->size, - &args->handle); + exynos_gem_obj = exynos_drm_gem_create(dev, file_priv, &args->handle, + args->size); if (IS_ERR(exynos_gem_obj)) return PTR_ERR(exynos_gem_obj); diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h index e5fc0148277b..213838d9606e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h @@ -49,9 +49,9 @@ struct exynos_drm_gem_obj { }; /* create a new buffer and get a new gem handle. */ -struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_file *file_priv, - struct drm_device *dev, unsigned int size, - unsigned int *handle); +struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, + struct drm_file *file_priv, + unsigned int *handle, unsigned long size); /* * request gem object creation and buffer allocation as the size diff --git a/include/drm/exynos_drm.h b/include/drm/exynos_drm.h index 1d161cb3aca5..12050434d57a 100644 --- a/include/drm/exynos_drm.h +++ b/include/drm/exynos_drm.h @@ -32,17 +32,16 @@ /** * User-desired buffer creation information structure. * - * @size: requested size for the object. + * @size: user-desired memory allocation size. * - this size value would be page-aligned internally. * @flags: user request for setting memory type or cache attributes. - * @handle: returned handle for the object. - * @pad: just padding to be 64-bit aligned. + * @handle: returned a handle to created gem object. + * - this handle will be set by gem module of kernel side. */ struct drm_exynos_gem_create { - unsigned int size; + uint64_t size; unsigned int flags; unsigned int handle; - unsigned int pad; }; /** From c7493668eeced636afabfed57dfead8329c3d7fa Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Wed, 9 Nov 2011 16:50:30 +0900 Subject: [PATCH 061/207] drm/exynos: removed unnecessary variable. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_buf.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c index 6f8afea94fc9..303189c78cf1 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c @@ -29,8 +29,6 @@ #include "exynos_drm_drv.h" #include "exynos_drm_buf.h" -static DEFINE_MUTEX(exynos_drm_buf_lock); - static int lowlevel_buffer_allocate(struct drm_device *dev, struct exynos_drm_buf_entry *entry) { From 2c871127e994a678b82104a4110eb7fcc87f05ad Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Sat, 12 Nov 2011 15:23:32 +0900 Subject: [PATCH 062/207] drm/exynos: changed buffer structure. the purpose of this patch is to consider IOMMU support in the future. EXYNOS4 SoC supports IOMMU also so the address for DMA could be physical address with IOMMU or device address with IOMMU. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_buf.c | 60 ++++++++++++----------- drivers/gpu/drm/exynos/exynos_drm_buf.h | 21 ++------ drivers/gpu/drm/exynos/exynos_drm_crtc.c | 47 ++++++------------ drivers/gpu/drm/exynos/exynos_drm_crtc.h | 25 ++++++++++ drivers/gpu/drm/exynos/exynos_drm_drv.h | 6 +-- drivers/gpu/drm/exynos/exynos_drm_fb.c | 48 +++++++++--------- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 15 +++--- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 12 ++--- drivers/gpu/drm/exynos/exynos_drm_gem.c | 25 +++++----- drivers/gpu/drm/exynos/exynos_drm_gem.h | 22 +++++++-- 10 files changed, 148 insertions(+), 133 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c index 303189c78cf1..2bb07bca511a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c @@ -27,80 +27,84 @@ #include "drm.h" #include "exynos_drm_drv.h" +#include "exynos_drm_gem.h" #include "exynos_drm_buf.h" static int lowlevel_buffer_allocate(struct drm_device *dev, - struct exynos_drm_buf_entry *entry) + struct exynos_drm_gem_buf *buffer) { DRM_DEBUG_KMS("%s\n", __FILE__); - entry->vaddr = dma_alloc_writecombine(dev->dev, entry->size, - (dma_addr_t *)&entry->paddr, GFP_KERNEL); - if (!entry->paddr) { + buffer->kvaddr = dma_alloc_writecombine(dev->dev, buffer->size, + &buffer->dma_addr, GFP_KERNEL); + if (!buffer->kvaddr) { DRM_ERROR("failed to allocate buffer.\n"); return -ENOMEM; } - DRM_DEBUG_KMS("allocated : vaddr(0x%x), paddr(0x%x), size(0x%x)\n", - (unsigned int)entry->vaddr, entry->paddr, entry->size); + DRM_DEBUG_KMS("vaddr(0x%lx), dma_addr(0x%lx), size(0x%lx)\n", + (unsigned long)buffer->kvaddr, + (unsigned long)buffer->dma_addr, + buffer->size); return 0; } static void lowlevel_buffer_deallocate(struct drm_device *dev, - struct exynos_drm_buf_entry *entry) + struct exynos_drm_gem_buf *buffer) { DRM_DEBUG_KMS("%s.\n", __FILE__); - if (entry->paddr && entry->vaddr && entry->size) - dma_free_writecombine(dev->dev, entry->size, entry->vaddr, - entry->paddr); + if (buffer->dma_addr && buffer->size) + dma_free_writecombine(dev->dev, buffer->size, buffer->kvaddr, + (dma_addr_t)buffer->dma_addr); else - DRM_DEBUG_KMS("entry data is null.\n"); + DRM_DEBUG_KMS("buffer data are invalid.\n"); } -struct exynos_drm_buf_entry *exynos_drm_buf_create(struct drm_device *dev, +struct exynos_drm_gem_buf *exynos_drm_buf_create(struct drm_device *dev, unsigned int size) { - struct exynos_drm_buf_entry *entry; + struct exynos_drm_gem_buf *buffer; DRM_DEBUG_KMS("%s.\n", __FILE__); + DRM_DEBUG_KMS("desired size = 0x%x\n", size); - entry = kzalloc(sizeof(*entry), GFP_KERNEL); - if (!entry) { - DRM_ERROR("failed to allocate exynos_drm_buf_entry.\n"); + buffer = kzalloc(sizeof(*buffer), GFP_KERNEL); + if (!buffer) { + DRM_ERROR("failed to allocate exynos_drm_gem_buf.\n"); return ERR_PTR(-ENOMEM); } - entry->size = size; + buffer->size = size; /* * allocate memory region with size and set the memory information - * to vaddr and paddr of a entry object. + * to vaddr and dma_addr of a buffer object. */ - if (lowlevel_buffer_allocate(dev, entry) < 0) { - kfree(entry); - entry = NULL; + if (lowlevel_buffer_allocate(dev, buffer) < 0) { + kfree(buffer); + buffer = NULL; return ERR_PTR(-ENOMEM); } - return entry; + return buffer; } void exynos_drm_buf_destroy(struct drm_device *dev, - struct exynos_drm_buf_entry *entry) + struct exynos_drm_gem_buf *buffer) { DRM_DEBUG_KMS("%s.\n", __FILE__); - if (!entry) { - DRM_DEBUG_KMS("entry is null.\n"); + if (!buffer) { + DRM_DEBUG_KMS("buffer is null.\n"); return; } - lowlevel_buffer_deallocate(dev, entry); + lowlevel_buffer_deallocate(dev, buffer); - kfree(entry); - entry = NULL; + kfree(buffer); + buffer = NULL; } MODULE_AUTHOR("Inki Dae "); diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.h b/drivers/gpu/drm/exynos/exynos_drm_buf.h index 045d59eab01a..6e91f9caa5db 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.h +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.h @@ -26,28 +26,15 @@ #ifndef _EXYNOS_DRM_BUF_H_ #define _EXYNOS_DRM_BUF_H_ -/* - * exynos drm buffer entry structure. - * - * @paddr: physical address of allocated memory. - * @vaddr: kernel virtual address of allocated memory. - * @size: size of allocated memory. - */ -struct exynos_drm_buf_entry { - dma_addr_t paddr; - void __iomem *vaddr; - unsigned int size; -}; - /* allocate physical memory. */ -struct exynos_drm_buf_entry *exynos_drm_buf_create(struct drm_device *dev, +struct exynos_drm_gem_buf *exynos_drm_buf_create(struct drm_device *dev, unsigned int size); -/* get physical memory information of a drm framebuffer. */ -struct exynos_drm_buf_entry *exynos_drm_fb_get_buf(struct drm_framebuffer *fb); +/* get memory information of a drm framebuffer. */ +struct exynos_drm_gem_buf *exynos_drm_fb_get_buf(struct drm_framebuffer *fb); /* remove allocated physical memory. */ void exynos_drm_buf_destroy(struct drm_device *dev, - struct exynos_drm_buf_entry *entry); + struct exynos_drm_gem_buf *buffer); #endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index b1d6526340bb..ee43cc220853 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -29,35 +29,16 @@ #include "drmP.h" #include "drm_crtc_helper.h" +#include "exynos_drm_crtc.h" #include "exynos_drm_drv.h" #include "exynos_drm_fb.h" #include "exynos_drm_encoder.h" +#include "exynos_drm_gem.h" #include "exynos_drm_buf.h" #define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc,\ drm_crtc) -/* - * Exynos specific crtc postion structure. - * - * @fb_x: offset x on a framebuffer to be displyed - * - the unit is screen coordinates. - * @fb_y: offset y on a framebuffer to be displayed - * - the unit is screen coordinates. - * @crtc_x: offset x on hardware screen. - * @crtc_y: offset y on hardware screen. - * @crtc_w: width of hardware screen. - * @crtc_h: height of hardware screen. - */ -struct exynos_drm_crtc_pos { - unsigned int fb_x; - unsigned int fb_y; - unsigned int crtc_x; - unsigned int crtc_y; - unsigned int crtc_w; - unsigned int crtc_h; -}; - /* * Exynos specific crtc structure. * @@ -89,27 +70,27 @@ static void exynos_drm_crtc_apply(struct drm_crtc *crtc) exynos_drm_encoder_crtc_commit); } -static int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay, - struct drm_framebuffer *fb, - struct drm_display_mode *mode, - struct exynos_drm_crtc_pos *pos) +int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay, + struct drm_framebuffer *fb, + struct drm_display_mode *mode, + struct exynos_drm_crtc_pos *pos) { - struct exynos_drm_buf_entry *entry; + struct exynos_drm_gem_buf *buffer; unsigned int actual_w; unsigned int actual_h; - entry = exynos_drm_fb_get_buf(fb); - if (!entry) { - DRM_LOG_KMS("entry is null.\n"); + buffer = exynos_drm_fb_get_buf(fb); + if (!buffer) { + DRM_LOG_KMS("buffer is null.\n"); return -EFAULT; } - overlay->paddr = entry->paddr; - overlay->vaddr = entry->vaddr; + overlay->dma_addr = buffer->dma_addr; + overlay->vaddr = buffer->kvaddr; - DRM_DEBUG_KMS("vaddr = 0x%lx, paddr = 0x%lx\n", + DRM_DEBUG_KMS("vaddr = 0x%lx, dma_addr = 0x%lx\n", (unsigned long)overlay->vaddr, - (unsigned long)overlay->paddr); + (unsigned long)overlay->dma_addr); actual_w = min((mode->hdisplay - pos->crtc_x), pos->crtc_w); actual_h = min((mode->vdisplay - pos->crtc_y), pos->crtc_h); diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.h b/drivers/gpu/drm/exynos/exynos_drm_crtc.h index c584042d6d2c..25f72a62cb88 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.h +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.h @@ -35,4 +35,29 @@ int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr); int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int crtc); void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc); +/* + * Exynos specific crtc postion structure. + * + * @fb_x: offset x on a framebuffer to be displyed + * - the unit is screen coordinates. + * @fb_y: offset y on a framebuffer to be displayed + * - the unit is screen coordinates. + * @crtc_x: offset x on hardware screen. + * @crtc_y: offset y on hardware screen. + * @crtc_w: width of hardware screen. + * @crtc_h: height of hardware screen. + */ +struct exynos_drm_crtc_pos { + unsigned int fb_x; + unsigned int fb_y; + unsigned int crtc_x; + unsigned int crtc_y; + unsigned int crtc_w; + unsigned int crtc_h; +}; + +int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay, + struct drm_framebuffer *fb, + struct drm_display_mode *mode, + struct exynos_drm_crtc_pos *pos); #endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 1575e5fef51e..38a6f1df75c6 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -79,8 +79,8 @@ struct exynos_drm_overlay_ops { * @scan_flag: interlace or progressive way. * (it could be DRM_MODE_FLAG_*) * @bpp: pixel size.(in bit) - * @paddr: bus(accessed by dma) physical memory address to this overlay - * and this is physically continuous. + * @dma_addr: bus(accessed by dma) address to the memory region allocated + * for a overlay. * @vaddr: virtual memory addresss to this overlay. * @default_win: a window to be enabled. * @color_key: color key on or off. @@ -108,7 +108,7 @@ struct exynos_drm_overlay { unsigned int scan_flag; unsigned int bpp; unsigned int pitch; - dma_addr_t paddr; + dma_addr_t dma_addr; void __iomem *vaddr; bool default_win; diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c index 8d0f66224045..5bf4a1ac7f82 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fb.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c @@ -43,14 +43,14 @@ * * @fb: drm framebuffer obejct. * @exynos_gem_obj: exynos specific gem object containing a gem object. - * @entry: pointer to exynos drm buffer entry object. - * - containing only the information to physically continuous memory - * region allocated at default framebuffer creation. + * @buffer: pointer to exynos_drm_gem_buffer object. + * - contain the memory information to memory region allocated + * at default framebuffer creation. */ struct exynos_drm_fb { struct drm_framebuffer fb; struct exynos_drm_gem_obj *exynos_gem_obj; - struct exynos_drm_buf_entry *entry; + struct exynos_drm_gem_buf *buffer; }; static void exynos_drm_fb_destroy(struct drm_framebuffer *fb) @@ -65,8 +65,8 @@ static void exynos_drm_fb_destroy(struct drm_framebuffer *fb) * default framebuffer has no gem object so * a buffer of the default framebuffer should be released at here. */ - if (!exynos_fb->exynos_gem_obj && exynos_fb->entry) - exynos_drm_buf_destroy(fb->dev, exynos_fb->entry); + if (!exynos_fb->exynos_gem_obj && exynos_fb->buffer) + exynos_drm_buf_destroy(fb->dev, exynos_fb->buffer); kfree(exynos_fb); exynos_fb = NULL; @@ -145,23 +145,23 @@ exynos_drm_fb_init(struct drm_file *file_priv, struct drm_device *dev, */ if (!mode_cmd->handle) { if (!file_priv) { - struct exynos_drm_buf_entry *entry; + struct exynos_drm_gem_buf *buffer; /* * in case that file_priv is NULL, it allocates * only buffer and this buffer would be used * for default framebuffer. */ - entry = exynos_drm_buf_create(dev, size); - if (IS_ERR(entry)) { - ret = PTR_ERR(entry); + buffer = exynos_drm_buf_create(dev, size); + if (IS_ERR(buffer)) { + ret = PTR_ERR(buffer); goto err_buffer; } - exynos_fb->entry = entry; + exynos_fb->buffer = buffer; - DRM_LOG_KMS("default fb: paddr = 0x%lx, size = 0x%x\n", - (unsigned long)entry->paddr, size); + DRM_LOG_KMS("default: dma_addr = 0x%lx, size = 0x%x\n", + (unsigned long)buffer->dma_addr, size); goto out; } else { @@ -191,10 +191,10 @@ exynos_drm_fb_init(struct drm_file *file_priv, struct drm_device *dev, * so that default framebuffer has no its own gem object, * only its own buffer object. */ - exynos_fb->entry = exynos_gem_obj->entry; + exynos_fb->buffer = exynos_gem_obj->buffer; - DRM_LOG_KMS("paddr = 0x%lx, size = 0x%x, gem object = 0x%x\n", - (unsigned long)exynos_fb->entry->paddr, size, + DRM_LOG_KMS("dma_addr = 0x%lx, size = 0x%x, gem object = 0x%x\n", + (unsigned long)exynos_fb->buffer->dma_addr, size, (unsigned int)&exynos_gem_obj->base); out: @@ -222,22 +222,22 @@ struct drm_framebuffer *exynos_drm_fb_create(struct drm_device *dev, return exynos_drm_fb_init(file_priv, dev, mode_cmd); } -struct exynos_drm_buf_entry *exynos_drm_fb_get_buf(struct drm_framebuffer *fb) +struct exynos_drm_gem_buf *exynos_drm_fb_get_buf(struct drm_framebuffer *fb) { struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb); - struct exynos_drm_buf_entry *entry; + struct exynos_drm_gem_buf *buffer; DRM_DEBUG_KMS("%s\n", __FILE__); - entry = exynos_fb->entry; - if (!entry) + buffer = exynos_fb->buffer; + if (!buffer) return NULL; - DRM_DEBUG_KMS("vaddr = 0x%lx, paddr = 0x%lx\n", - (unsigned long)entry->vaddr, - (unsigned long)entry->paddr); + DRM_DEBUG_KMS("vaddr = 0x%lx, dma_addr = 0x%lx\n", + (unsigned long)buffer->kvaddr, + (unsigned long)buffer->dma_addr); - return entry; + return buffer; } static void exynos_drm_output_poll_changed(struct drm_device *dev) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 0effd77d569b..836f41008187 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -33,6 +33,7 @@ #include "exynos_drm_drv.h" #include "exynos_drm_fb.h" +#include "exynos_drm_gem.h" #include "exynos_drm_buf.h" #define MAX_CONNECTOR 4 @@ -90,7 +91,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, struct fb_info *fbi = helper->fbdev; struct drm_device *dev = helper->dev; struct exynos_drm_fbdev *exynos_fb = to_exynos_fbdev(helper); - struct exynos_drm_buf_entry *entry; + struct exynos_drm_gem_buf *buffer; unsigned int size = fb->width * fb->height * (fb->bits_per_pixel >> 3); unsigned long offset; @@ -101,18 +102,18 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, drm_fb_helper_fill_fix(fbi, fb->pitch, fb->depth); drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height); - entry = exynos_drm_fb_get_buf(fb); - if (!entry) { - DRM_LOG_KMS("entry is null.\n"); + buffer = exynos_drm_fb_get_buf(fb); + if (!buffer) { + DRM_LOG_KMS("buffer is null.\n"); return -EFAULT; } offset = fbi->var.xoffset * (fb->bits_per_pixel >> 3); offset += fbi->var.yoffset * fb->pitch; - dev->mode_config.fb_base = entry->paddr; - fbi->screen_base = entry->vaddr + offset; - fbi->fix.smem_start = entry->paddr + offset; + dev->mode_config.fb_base = (resource_size_t)buffer->dma_addr; + fbi->screen_base = buffer->kvaddr + offset; + fbi->fix.smem_start = (unsigned long)(buffer->dma_addr + offset); fbi->screen_size = size; fbi->fix.smem_len = size; diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index f2d883f2999e..f5c8b072e497 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -64,7 +64,7 @@ struct fimd_win_data { unsigned int fb_width; unsigned int fb_height; unsigned int bpp; - dma_addr_t paddr; + dma_addr_t dma_addr; void __iomem *vaddr; unsigned int buf_offsize; unsigned int line_size; /* bytes */ @@ -251,7 +251,7 @@ static void fimd_win_mode_set(struct device *dev, win_data->ovl_height = overlay->crtc_height; win_data->fb_width = overlay->fb_width; win_data->fb_height = overlay->fb_height; - win_data->paddr = overlay->paddr + offset; + win_data->dma_addr = overlay->dma_addr + offset; win_data->vaddr = overlay->vaddr + offset; win_data->bpp = overlay->bpp; win_data->buf_offsize = (overlay->fb_width - overlay->crtc_width) * @@ -263,7 +263,7 @@ static void fimd_win_mode_set(struct device *dev, DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n", win_data->ovl_width, win_data->ovl_height); DRM_DEBUG_KMS("paddr = 0x%lx, vaddr = 0x%lx\n", - (unsigned long)win_data->paddr, + (unsigned long)win_data->dma_addr, (unsigned long)win_data->vaddr); DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n", overlay->fb_width, overlay->crtc_width); @@ -376,16 +376,16 @@ static void fimd_win_commit(struct device *dev) writel(val, ctx->regs + SHADOWCON); /* buffer start address */ - val = win_data->paddr; + val = (unsigned long)win_data->dma_addr; writel(val, ctx->regs + VIDWx_BUF_START(win, 0)); /* buffer end address */ size = win_data->fb_width * win_data->ovl_height * (win_data->bpp >> 3); - val = win_data->paddr + size; + val = (unsigned long)(win_data->dma_addr + size); writel(val, ctx->regs + VIDWx_BUF_END(win, 0)); DRM_DEBUG_KMS("start addr = 0x%lx, end addr = 0x%lx, size = 0x%lx\n", - (unsigned long)win_data->paddr, val, size); + (unsigned long)win_data->dma_addr, val, size); DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n", win_data->ovl_width, win_data->ovl_height); diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index bd6ede83b684..b1b94b1e4400 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -127,15 +127,15 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, { struct exynos_drm_gem_obj *exynos_gem_obj = NULL; - struct exynos_drm_buf_entry *entry; + struct exynos_drm_gem_buf *buffer; int ret; size = roundup(size, PAGE_SIZE); DRM_DEBUG_KMS("%s: size = 0x%lx\n", __FILE__, size); - entry = exynos_drm_buf_create(dev, size); - if (!entry) + buffer = exynos_drm_buf_create(dev, size); + if (!buffer) return ERR_PTR(-ENOMEM); exynos_gem_obj = exynos_drm_gem_init(dev, file_priv, handle, size); @@ -144,12 +144,12 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, goto err_gem_init; } - exynos_gem_obj->entry = entry; + exynos_gem_obj->buffer = buffer; return exynos_gem_obj; err_gem_init: - exynos_drm_buf_destroy(dev, exynos_gem_obj->entry); + exynos_drm_buf_destroy(dev, exynos_gem_obj->buffer); return ERR_PTR(ret); } @@ -194,7 +194,7 @@ static int exynos_drm_gem_mmap_buffer(struct file *filp, { struct drm_gem_object *obj = filp->private_data; struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj); - struct exynos_drm_buf_entry *entry; + struct exynos_drm_gem_buf *buffer; unsigned long pfn, vm_size; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -206,20 +206,20 @@ static int exynos_drm_gem_mmap_buffer(struct file *filp, vm_size = vma->vm_end - vma->vm_start; /* - * a entry contains information to physically continuous memory + * a buffer contains information to physically continuous memory * allocated by user request or at framebuffer creation. */ - entry = exynos_gem_obj->entry; + buffer = exynos_gem_obj->buffer; /* check if user-requested size is valid. */ - if (vm_size > entry->size) + if (vm_size > buffer->size) return -EINVAL; /* * get page frame number to physical memory to be mapped * to user space. */ - pfn = exynos_gem_obj->entry->paddr >> PAGE_SHIFT; + pfn = ((unsigned long)exynos_gem_obj->buffer->dma_addr) >> PAGE_SHIFT; DRM_DEBUG_KMS("pfn = 0x%lx\n", pfn); @@ -300,7 +300,7 @@ void exynos_drm_gem_free_object(struct drm_gem_object *gem_obj) exynos_gem_obj = to_exynos_gem_obj(gem_obj); - exynos_drm_buf_destroy(gem_obj->dev, exynos_gem_obj->entry); + exynos_drm_buf_destroy(gem_obj->dev, exynos_gem_obj->buffer); kfree(exynos_gem_obj); } @@ -379,7 +379,8 @@ int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) mutex_lock(&dev->struct_mutex); - pfn = (exynos_gem_obj->entry->paddr >> PAGE_SHIFT) + page_offset; + pfn = (((unsigned long)exynos_gem_obj->buffer->dma_addr) >> + PAGE_SHIFT) + page_offset; ret = vm_insert_mixed(vma, (unsigned long)vmf->virtual_address, pfn); diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h index 213838d9606e..ef8797334e6d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h @@ -29,14 +29,30 @@ #define to_exynos_gem_obj(x) container_of(x,\ struct exynos_drm_gem_obj, base) +/* + * exynos drm gem buffer structure. + * + * @kvaddr: kernel virtual address to allocated memory region. + * @dma_addr: bus address(accessed by dma) to allocated memory region. + * - this address could be physical address without IOMMU and + * device address with IOMMU. + * @size: size of allocated memory region. + */ +struct exynos_drm_gem_buf { + void __iomem *kvaddr; + dma_addr_t dma_addr; + unsigned long size; +}; + /* * exynos drm buffer structure. * * @base: a gem object. * - a new handle to this gem object would be created * by drm_gem_handle_create(). - * @entry: pointer to exynos drm buffer entry object. - * - containing the information to physically + * @buffer: a pointer to exynos_drm_gem_buffer object. + * - contain the information to memory region allocated + * by user request or at framebuffer creation. * continuous memory region allocated by user request * or at framebuffer creation. * @@ -45,7 +61,7 @@ */ struct exynos_drm_gem_obj { struct drm_gem_object base; - struct exynos_drm_buf_entry *entry; + struct exynos_drm_gem_buf *buffer; }; /* create a new buffer and get a new gem handle. */ From 483b88f86e1682241bfa0848e348aa175257c6e7 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Fri, 11 Nov 2011 21:28:00 +0900 Subject: [PATCH 063/207] drm/exynos: fix vblank bug. In case that vblank_disable_allowed is 1, the problem that manager->pipe could be -1 at vsync interrupt handler could be induced so this patch fixes that. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 46 ++++++++++++++++++------ 1 file changed, 36 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index f5c8b072e497..272c3b53c062 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -447,7 +447,9 @@ static void fimd_win_commit(struct device *dev) static void fimd_win_disable(struct device *dev) { struct fimd_context *ctx = get_fimd_context(dev); - struct fimd_win_data *win_data; + struct exynos_drm_subdrv *subdrv = &ctx->subdrv; + struct drm_device *drm_dev = subdrv->drm_dev; + struct exynos_drm_manager *manager = &subdrv->manager; int win = ctx->default_win; u32 val; @@ -456,8 +458,6 @@ static void fimd_win_disable(struct device *dev) if (win < 0 || win > WINDOWS_NR) return; - win_data = &ctx->win_data[win]; - /* protect windows */ val = readl(ctx->regs + SHADOWCON); val |= SHADOWCON_WINx_PROTECT(win); @@ -473,6 +473,29 @@ static void fimd_win_disable(struct device *dev) val &= ~SHADOWCON_CHx_ENABLE(win); val &= ~SHADOWCON_WINx_PROTECT(win); writel(val, ctx->regs + SHADOWCON); + + /* fimd dma off. */ + val = readl(ctx->regs + VIDCON0); + val &= ~(VIDCON0_ENVID | VIDCON0_ENVID_F); + writel(val, ctx->regs + VIDCON0); + + /* + * if vblank is enabled status with dma off then + * it disables vsync interrupt. + */ + if (drm_dev->vblank_enabled[manager->pipe] && + atomic_read(&drm_dev->vblank_refcount[manager->pipe])) { + drm_vblank_put(drm_dev, manager->pipe); + + /* + * if vblank_disable_allowed is 0 then disable vsync interrupt + * right now else the vsync interrupt would be disabled by drm + * timer once a current process gives up ownershop of + * vblank event. + */ + if (!drm_dev->vblank_disable_allowed) + drm_vblank_off(drm_dev, manager->pipe); + } } static struct exynos_drm_overlay_ops fimd_overlay_ops = { @@ -528,6 +551,16 @@ static irqreturn_t fimd_irq_handler(int irq, void *dev_id) /* VSYNC interrupt */ writel(VIDINTCON1_INT_FRAME, ctx->regs + VIDINTCON1); + /* + * in case that vblank_disable_allowed is 1, it could induce + * the problem that manager->pipe could be -1 because with + * disable callback, vsync interrupt isn't disabled and at this moment, + * vsync interrupt could occur. the vsync interrupt would be disabled + * by timer handler later. + */ + if (manager->pipe == -1) + return IRQ_HANDLED; + drm_handle_vblank(drm_dev, manager->pipe); fimd_finish_pageflip(drm_dev, manager->pipe); @@ -548,13 +581,6 @@ static int fimd_subdrv_probe(struct drm_device *drm_dev, struct device *dev) */ drm_dev->irq_enabled = 1; - /* - * with vblank_disable_allowed = 1, vblank interrupt will be disabled - * by drm timer once a current process gives up ownership of - * vblank event.(drm_vblank_put function was called) - */ - drm_dev->vblank_disable_allowed = 1; - return 0; } From 4f9eb94f7be3d357e811ec74a53027bd27f1748f Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Sat, 12 Nov 2011 16:57:42 +0900 Subject: [PATCH 064/207] drm/exynos: include linux/module.h Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_drv.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 38a6f1df75c6..2d74f8550e20 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -29,6 +29,7 @@ #ifndef _EXYNOS_DRM_DRV_H_ #define _EXYNOS_DRM_DRV_H_ +#include #include "drm.h" #define MAX_CRTC 2 From 0f768a7235d3dfb6f4833030a95a06419df089cb Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Mon, 14 Nov 2011 16:35:26 -0600 Subject: [PATCH 065/207] ASoC: fsl_ssi: properly initialize the sysfs attribute object Commit 6992f533 ("sysfs: Use one lockdep class per sysfs attribute") requires 'struct attribute' objects to be initialized with sysfs_attr_init(). Signed-off-by: Timur Tabi Signed-off-by: Mark Brown Cc: stable@kernel.org --- sound/soc/fsl/fsl_ssi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 0268cf989736..83c4bd5b2dd7 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -694,6 +694,7 @@ static int __devinit fsl_ssi_probe(struct platform_device *pdev) /* Initialize the the device_attribute structure */ dev_attr = &ssi_private->dev_attr; + sysfs_attr_init(&dev_attr->attr); dev_attr->attr.name = "statistics"; dev_attr->attr.mode = S_IRUGO; dev_attr->show = fsl_sysfs_ssi_show; From f64ae042d94d376b54e7a343d93c48561e9d2e16 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Fri, 11 Nov 2011 08:33:48 +0800 Subject: [PATCH 066/207] slub: use correct parameter to add a page to partial list tail unfreeze_partials() needs add the page to partial list tail, since such page hasn't too many free objects. We now explictly use DEACTIVATE_TO_TAIL for this, while DEACTIVATE_TO_TAIL != 1. This will cause performance regression (eg, more lock contention in node->list_lock) without below fix. Signed-off-by: Shaohua Li Acked-by: Christoph Lameter Acked-by: David Rientjes Signed-off-by: Pekka Enberg --- mm/slub.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index 7d2a996c307e..60e16c43f88c 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1904,7 +1904,8 @@ static void unfreeze_partials(struct kmem_cache *s) if (l == M_PARTIAL) remove_partial(n, page); else - add_partial(n, page, 1); + add_partial(n, page, + DEACTIVATE_TO_TAIL); l = m; } From 9ada19342b2441f290f0043ed7c562682c8c4ede Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Mon, 14 Nov 2011 13:34:13 +0800 Subject: [PATCH 067/207] slub: move discard_slab out of node lock Lockdep reports there is potential deadlock for slub node list_lock. discard_slab() is called with the lock hold in unfreeze_partials(), which could trigger a slab allocation, which could hold the lock again. discard_slab() doesn't need hold the lock actually, if the slab is already removed from partial list. Acked-by: Christoph Lameter Reported-and-tested-by: Yong Zhang Reported-and-tested-by: Julie Sullivan Signed-off-by: Shaohua Li Signed-off-by: Pekka Enberg --- mm/slub.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 60e16c43f88c..00efbb56a268 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1862,7 +1862,7 @@ static void unfreeze_partials(struct kmem_cache *s) { struct kmem_cache_node *n = NULL; struct kmem_cache_cpu *c = this_cpu_ptr(s->cpu_slab); - struct page *page; + struct page *page, *discard_page = NULL; while ((page = c->partial)) { enum slab_modes { M_PARTIAL, M_FREE }; @@ -1916,14 +1916,22 @@ static void unfreeze_partials(struct kmem_cache *s) "unfreezing slab")); if (m == M_FREE) { - stat(s, DEACTIVATE_EMPTY); - discard_slab(s, page); - stat(s, FREE_SLAB); + page->next = discard_page; + discard_page = page; } } if (n) spin_unlock(&n->list_lock); + + while (discard_page) { + page = discard_page; + discard_page = discard_page->next; + + stat(s, DEACTIVATE_EMPTY); + discard_slab(s, page); + stat(s, FREE_SLAB); + } } /* From ec84d529b689f4ae31813cf74673f3271c36c83a Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 14 Nov 2011 16:12:52 +0000 Subject: [PATCH 068/207] ARM: PMU: re-export release_pmu symbol to modules Commit b0e89590 ("ARM: PMU: move CPU PMU platform device handling and init into perf") inadvertently removed the EXPORT_SYMBOL_GPL on release_pmu, so out-of-tree modules can no longer play nice with perf, even if they tried in the first place. This patch re-exports the symbol. Reported-by: Jon Medhurst (Tixy) Signed-off-by: Will Deacon --- arch/arm/kernel/pmu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/kernel/pmu.c b/arch/arm/kernel/pmu.c index 2c3407ee8576..2334bf8a650a 100644 --- a/arch/arm/kernel/pmu.c +++ b/arch/arm/kernel/pmu.c @@ -33,3 +33,4 @@ release_pmu(enum arm_pmu_type type) { clear_bit_unlock(type, pmu_lock); } +EXPORT_SYMBOL_GPL(release_pmu); From 14e25c5eeb90d4f61cc94933307d04a19738ad2f Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 16 Nov 2011 10:05:18 +0000 Subject: [PATCH 069/207] ARM: PMU: remove pmu_init declaration pmu_init no longer exists, so don't declare it in asm/pmu.h. Reported-by: Pawel Moll Signed-off-by: Will Deacon --- arch/arm/include/asm/pmu.h | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h index 71d99b83cdb9..0bda22c094a6 100644 --- a/arch/arm/include/asm/pmu.h +++ b/arch/arm/include/asm/pmu.h @@ -55,16 +55,6 @@ reserve_pmu(enum arm_pmu_type type); extern void release_pmu(enum arm_pmu_type type); -/** - * init_pmu() - Initialise the PMU. - * - * Initialise the system ready for PMU enabling. This should typically set the - * IRQ affinity and nothing else. The users (oprofile/perf events etc) will do - * the actual hardware initialisation. - */ -extern int -init_pmu(enum arm_pmu_type type); - #else /* CONFIG_CPU_HAS_PMU */ #include From bf14fc54d6386ccd1ef3f1b0ff69e7a765cf8ded Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 6 Jun 2011 12:35:46 +0100 Subject: [PATCH 070/207] ARM: highbank: convert logical CPU numbers to physical numbers This patch uses the new cpu_logical_map() macro for converting logical CPU numbers into physical numbers when releasing CPUs during the SMP boot and CPU hotplug paths. Acked-by: Rob Herring Signed-off-by: Will Deacon --- arch/arm/mach-highbank/highbank.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index b82dcf08e747..88660d500f5b 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include @@ -72,6 +73,9 @@ static void __init highbank_map_io(void) void highbank_set_cpu_jump(int cpu, void *jump_addr) { +#ifdef CONFIG_SMP + cpu = cpu_logical_map(cpu); +#endif writel(BSYM(virt_to_phys(jump_addr)), HB_JUMP_TABLE_VIRT(cpu)); __cpuc_flush_dcache_area(HB_JUMP_TABLE_VIRT(cpu), 16); outer_clean_range(HB_JUMP_TABLE_PHYS(cpu), From eaa142ca3dee1478aca1a645bb0e5a249a33241a Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 9 Aug 2011 12:24:07 +0100 Subject: [PATCH 071/207] ARM: mach-imx: convert logical CPU numbers to physical numbers This patch uses the new cpu_logical_map() macro for converting logical CPU numbers into physical numbers when releasing CPUs during the SMP boot and CPU hotplug paths. Cc: Sascha Hauer Acked-by: Shawn Guo Signed-off-by: Will Deacon --- arch/arm/mach-imx/src.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c index 36cacbd0dcc2..a8e33681b732 100644 --- a/arch/arm/mach-imx/src.c +++ b/arch/arm/mach-imx/src.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #define SRC_SCR 0x000 @@ -23,10 +24,15 @@ static void __iomem *src_base; +#ifndef CONFIG_SMP +#define cpu_logical_map(cpu) 0 +#endif + void imx_enable_cpu(int cpu, bool enable) { u32 mask, val; + cpu = cpu_logical_map(cpu); mask = 1 << (BP_SRC_SCR_CORE1_ENABLE + cpu - 1); val = readl_relaxed(src_base + SRC_SCR); val = enable ? val | mask : val & ~mask; @@ -35,6 +41,7 @@ void imx_enable_cpu(int cpu, bool enable) void imx_set_cpu_jump(int cpu, void *jump_addr) { + cpu = cpu_logical_map(cpu); writel_relaxed(BSYM(virt_to_phys(jump_addr)), src_base + SRC_GPR1 + cpu * 8); } From 12b248eba4fd189216cad14b7dd1cfdacdf90cdf Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Thu, 17 Nov 2011 01:13:34 +0900 Subject: [PATCH 072/207] ARM: S5P: Fix export.h inclusion Commit 32aaeffbd4a7 ("Merge branch 'modsplit-Oct31 2011'...") breaks build like following and this fixes it to add inclusion . arch/arm/plat-s5p/sysmmu.c:302: error: 'THIS_MODULE' undeclared here (not in a function) Signed-off-by: Kukjin Kim --- arch/arm/plat-s5p/sysmmu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/plat-s5p/sysmmu.c b/arch/arm/plat-s5p/sysmmu.c index e1cbc728c775..c8bec9c7655d 100644 --- a/arch/arm/plat-s5p/sysmmu.c +++ b/arch/arm/plat-s5p/sysmmu.c @@ -11,6 +11,7 @@ #include #include #include +#include #include From a69e4c28b2bddc21b5752b1da8f43ab0a817305c Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Thu, 17 Nov 2011 01:14:38 +0900 Subject: [PATCH 073/207] ARM: SAMSUNG: inclusion export.h instead of module.h Only for THIS_MODULE, the file should be added instead of . Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c64xx/mach-crag6410-module.c | 2 +- arch/arm/plat-s3c24xx/cpu-freq-debugfs.c | 2 +- arch/arm/plat-samsung/pd.c | 2 +- arch/arm/plat-samsung/pwm.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-s3c64xx/mach-crag6410-module.c b/arch/arm/mach-s3c64xx/mach-crag6410-module.c index 66668565ee75..f208154b1382 100644 --- a/arch/arm/mach-s3c64xx/mach-crag6410-module.c +++ b/arch/arm/mach-s3c64xx/mach-crag6410-module.c @@ -8,7 +8,7 @@ * published by the Free Software Foundation. */ -#include +#include #include #include diff --git a/arch/arm/plat-s3c24xx/cpu-freq-debugfs.c b/arch/arm/plat-s3c24xx/cpu-freq-debugfs.c index a9276667c2fb..c7adad0e8de0 100644 --- a/arch/arm/plat-s3c24xx/cpu-freq-debugfs.c +++ b/arch/arm/plat-s3c24xx/cpu-freq-debugfs.c @@ -12,7 +12,7 @@ */ #include -#include +#include #include #include #include diff --git a/arch/arm/plat-samsung/pd.c b/arch/arm/plat-samsung/pd.c index efe1d564473e..312b510d86b7 100644 --- a/arch/arm/plat-samsung/pd.c +++ b/arch/arm/plat-samsung/pd.c @@ -11,7 +11,7 @@ */ #include -#include +#include #include #include #include diff --git a/arch/arm/plat-samsung/pwm.c b/arch/arm/plat-samsung/pwm.c index dc1185dcf80d..c559d8438c70 100644 --- a/arch/arm/plat-samsung/pwm.c +++ b/arch/arm/plat-samsung/pwm.c @@ -11,7 +11,7 @@ * the Free Software Foundation; either version 2 of the License. */ -#include +#include #include #include #include From dc2c83582eac2682808b80e9dce7d2cac2b20596 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 17 Nov 2011 01:17:18 +0900 Subject: [PATCH 074/207] ARM: SAMSUNG: include linux/types.h at gpio-cfg.h Include linux/types.h to fix below build error: CC drivers/power/max8903_charger.o In file included from arch/arm/plat-samsung/include/plat/gpio-fns.h:27, from arch/arm/mach-s3c2410/include/mach/gpio-fns.h:1, from arch/arm/mach-s3c2410/include/mach/gpio.h:27, from /home/axel/repos/git/linux-2.6/arch/arm/include/asm/gpio.h:5, from include/linux/gpio.h:30, from drivers/power/max8903_charger.c:23: arch/arm/plat-samsung/include/plat/gpio-cfg.h:27: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'samsung_gpio_pull_t' arch/arm/plat-samsung/include/plat/gpio-cfg.h:28: error: expected '=', ',', ';', 'asm' or '__attribute__' before 's5p_gpio_drvstr_t' arch/arm/plat-samsung/include/plat/gpio-cfg.h:55: error: expected specifier-qualifier-list before 'samsung_gpio_pull_t' arch/arm/plat-samsung/include/plat/gpio-cfg.h:146: error: expected declaration specifiers or '...' before 'samsung_gpio_pull_t' arch/arm/plat-samsung/include/plat/gpio-cfg.h:154: error: expected '=', ',', ';', 'asm' or '__attribute__' before 's3c_gpio_getpull' arch/arm/plat-samsung/include/plat/gpio-cfg.h:173: error: expected declaration specifiers or '...' before 'samsung_gpio_pull_t' arch/arm/plat-samsung/include/plat/gpio-cfg.h: In function 's3c_gpio_cfgrange_nopull': arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: '__force' undeclared (first use in this function) arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: (Each undeclared identifier is reported only once arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: for each function it appears in.) arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: expected ')' before 'samsung_gpio_pull_t' arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: expected ')' before numeric constant arch/arm/plat-samsung/include/plat/gpio-cfg.h:178: error: too many arguments to function 's3c_gpio_cfgall_range' arch/arm/plat-samsung/include/plat/gpio-cfg.h: At top level: arch/arm/plat-samsung/include/plat/gpio-cfg.h:197: error: expected '=', ',', ';', 'asm' or '__attribute__' before 's5p_gpio_get_drvstr' arch/arm/plat-samsung/include/plat/gpio-cfg.h:208: error: expected declaration specifiers or '...' before 's5p_gpio_drvstr_t' make[2]: *** [drivers/power/max8903_charger.o] Error 1 make[1]: *** [drivers/power] Error 2 make: *** [drivers] Error 2 Signed-off-by: Axel Lin Cc: stable@kernel.org Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/include/plat/gpio-cfg.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg.h b/arch/arm/plat-samsung/include/plat/gpio-cfg.h index d48245bb02b3..df8155b9d4d1 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-cfg.h +++ b/arch/arm/plat-samsung/include/plat/gpio-cfg.h @@ -24,6 +24,8 @@ #ifndef __PLAT_GPIO_CFG_H #define __PLAT_GPIO_CFG_H __FILE__ +#include + typedef unsigned int __bitwise__ samsung_gpio_pull_t; typedef unsigned int __bitwise__ s5p_gpio_drvstr_t; From 9b7c547f7747991fe62f622698ea1bf470f256f4 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Wed, 16 Nov 2011 21:44:33 +0800 Subject: [PATCH 075/207] ARM: Update mach-types to fix mxs build breakage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add entry m28evk to fix the following mxs build breakage. CHK include/generated/compile.h CC arch/arm/mach-mxs/clock-mx28.o arch/arm/mach-mxs/clock-mx28.c: In function 'clk_misc_init': arch/arm/mach-mxs/clock-mx28.c:748: error: implicit declaration of function 'machine_is_m28evk' make[1]: *** [arch/arm/mach-mxs/clock-mx28.o] Error 1 make: *** [arch/arm/mach-mxs] Error 2 Signed-off-by: Shawn Guo Acked-by: Uwe Kleine-König --- arch/arm/tools/mach-types | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/tools/mach-types b/arch/arm/tools/mach-types index 5bdeef969847..ccbe16f47227 100644 --- a/arch/arm/tools/mach-types +++ b/arch/arm/tools/mach-types @@ -1123,5 +1123,6 @@ blissc MACH_BLISSC BLISSC 3491 thales_adc MACH_THALES_ADC THALES_ADC 3492 ubisys_p9d_evp MACH_UBISYS_P9D_EVP UBISYS_P9D_EVP 3493 atdgp318 MACH_ATDGP318 ATDGP318 3494 +m28evk MACH_M28EVK M28EVK 3613 smdk4212 MACH_SMDK4212 SMDK4212 3638 smdk4412 MACH_SMDK4412 SMDK4412 3765 From e4b3bbe31d9a1e9540c6e9c95f5e7fd92acbcacf Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Fri, 11 Nov 2011 20:11:14 +0800 Subject: [PATCH 076/207] ARM: pxa168/gplugd: add the correct SSP device There is no SSP0, but SSP1 is used on gplugd as an I2S port. Acked-by: Tanmay Upadhyay Signed-off-by: Eric Miao --- arch/arm/mach-mmp/gplugd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c index 69156568bc41..4665767a4f79 100644 --- a/arch/arm/mach-mmp/gplugd.c +++ b/arch/arm/mach-mmp/gplugd.c @@ -182,7 +182,7 @@ static void __init gplugd_init(void) /* on-chip devices */ pxa168_add_uart(3); - pxa168_add_ssp(0); + pxa168_add_ssp(1); pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info)); pxa168_add_eth(&gplugd_eth_platform_data); From 396464dfbba8f734c57346489b871e7ed64dcdd1 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Mon, 14 Nov 2011 15:20:49 +0900 Subject: [PATCH 077/207] drm/exynos: Add disable of manager Signed-off-by: Joonyoung Shim Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_drv.h | 2 + drivers/gpu/drm/exynos/exynos_drm_encoder.c | 18 ++++++ drivers/gpu/drm/exynos/exynos_drm_fimd.c | 61 ++++++++++++--------- 3 files changed, 55 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 2d74f8550e20..5e02e6ecc2e0 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -147,12 +147,14 @@ struct exynos_drm_display_ops { * @mode_set: convert drm_display_mode to hw specific display mode and * would be called by encoder->mode_set(). * @commit: set current hw specific display mode to hw. + * @disable: disable hardware specific display mode. * @enable_vblank: specific driver callback for enabling vblank interrupt. * @disable_vblank: specific driver callback for disabling vblank interrupt. */ struct exynos_drm_manager_ops { void (*mode_set)(struct device *subdrv_dev, void *mode); void (*commit)(struct device *subdrv_dev); + void (*disable)(struct device *subdrv_dev); int (*enable_vblank)(struct device *subdrv_dev); void (*disable_vblank)(struct device *subdrv_dev); }; diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index 866f419f485b..153061415baf 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -53,9 +53,27 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) struct drm_device *dev = encoder->dev; struct drm_connector *connector; struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); + struct exynos_drm_manager_ops *manager_ops = manager->ops; DRM_DEBUG_KMS("%s, encoder dpms: %d\n", __FILE__, mode); + switch (mode) { + case DRM_MODE_DPMS_ON: + if (manager_ops && manager_ops->commit) + manager_ops->commit(manager->dev); + break; + case DRM_MODE_DPMS_STANDBY: + case DRM_MODE_DPMS_SUSPEND: + case DRM_MODE_DPMS_OFF: + /* TODO */ + if (manager_ops && manager_ops->disable) + manager_ops->disable(manager->dev); + break; + default: + DRM_ERROR("unspecified mode %d\n", mode); + break; + } + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { if (connector->encoder == encoder) { struct exynos_drm_display_ops *display_ops = diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 272c3b53c062..db3b3d9e731d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -177,6 +177,40 @@ static void fimd_commit(struct device *dev) writel(val, ctx->regs + VIDCON0); } +static void fimd_disable(struct device *dev) +{ + struct fimd_context *ctx = get_fimd_context(dev); + struct exynos_drm_subdrv *subdrv = &ctx->subdrv; + struct drm_device *drm_dev = subdrv->drm_dev; + struct exynos_drm_manager *manager = &subdrv->manager; + u32 val; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + /* fimd dma off */ + val = readl(ctx->regs + VIDCON0); + val &= ~(VIDCON0_ENVID | VIDCON0_ENVID_F); + writel(val, ctx->regs + VIDCON0); + + /* + * if vblank is enabled status with dma off then + * it disables vsync interrupt. + */ + if (drm_dev->vblank_enabled[manager->pipe] && + atomic_read(&drm_dev->vblank_refcount[manager->pipe])) { + drm_vblank_put(drm_dev, manager->pipe); + + /* + * if vblank_disable_allowed is 0 then disable + * vsync interrupt right now else the vsync interrupt + * would be disabled by drm timer once a current process + * gives up ownershop of vblank event. + */ + if (!drm_dev->vblank_disable_allowed) + drm_vblank_off(drm_dev, manager->pipe); + } +} + static int fimd_enable_vblank(struct device *dev) { struct fimd_context *ctx = get_fimd_context(dev); @@ -220,6 +254,7 @@ static void fimd_disable_vblank(struct device *dev) static struct exynos_drm_manager_ops fimd_manager_ops = { .commit = fimd_commit, + .disable = fimd_disable, .enable_vblank = fimd_enable_vblank, .disable_vblank = fimd_disable_vblank, }; @@ -447,9 +482,6 @@ static void fimd_win_commit(struct device *dev) static void fimd_win_disable(struct device *dev) { struct fimd_context *ctx = get_fimd_context(dev); - struct exynos_drm_subdrv *subdrv = &ctx->subdrv; - struct drm_device *drm_dev = subdrv->drm_dev; - struct exynos_drm_manager *manager = &subdrv->manager; int win = ctx->default_win; u32 val; @@ -473,29 +505,6 @@ static void fimd_win_disable(struct device *dev) val &= ~SHADOWCON_CHx_ENABLE(win); val &= ~SHADOWCON_WINx_PROTECT(win); writel(val, ctx->regs + SHADOWCON); - - /* fimd dma off. */ - val = readl(ctx->regs + VIDCON0); - val &= ~(VIDCON0_ENVID | VIDCON0_ENVID_F); - writel(val, ctx->regs + VIDCON0); - - /* - * if vblank is enabled status with dma off then - * it disables vsync interrupt. - */ - if (drm_dev->vblank_enabled[manager->pipe] && - atomic_read(&drm_dev->vblank_refcount[manager->pipe])) { - drm_vblank_put(drm_dev, manager->pipe); - - /* - * if vblank_disable_allowed is 0 then disable vsync interrupt - * right now else the vsync interrupt would be disabled by drm - * timer once a current process gives up ownershop of - * vblank event. - */ - if (!drm_dev->vblank_disable_allowed) - drm_vblank_off(drm_dev, manager->pipe); - } } static struct exynos_drm_overlay_ops fimd_overlay_ops = { From ca22e3cc25f180859561f36d51bf21278db5ae11 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Tue, 15 Nov 2011 16:25:39 +0900 Subject: [PATCH 078/207] drm/exynos: fixed wrong err ptr usage and destroy call in exeception - exynos_drm_buf_create() returns err pointer so NULL check is wrong. - Case that exynos_gem_obj is not created, destroy call in exception handle lable uses this pointer. so instead buffer is directly used. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_gem.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index b1b94b1e4400..aba0fe47f7ea 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -128,30 +128,25 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev, struct exynos_drm_gem_obj *exynos_gem_obj = NULL; struct exynos_drm_gem_buf *buffer; - int ret; size = roundup(size, PAGE_SIZE); DRM_DEBUG_KMS("%s: size = 0x%lx\n", __FILE__, size); buffer = exynos_drm_buf_create(dev, size); - if (!buffer) - return ERR_PTR(-ENOMEM); + if (IS_ERR(buffer)) { + return ERR_CAST(buffer); + } exynos_gem_obj = exynos_drm_gem_init(dev, file_priv, handle, size); if (IS_ERR(exynos_gem_obj)) { - ret = PTR_ERR(exynos_gem_obj); - goto err_gem_init; + exynos_drm_buf_destroy(dev, buffer); + return exynos_gem_obj; } exynos_gem_obj->buffer = buffer; return exynos_gem_obj; - -err_gem_init: - exynos_drm_buf_destroy(dev, exynos_gem_obj->buffer); - - return ERR_PTR(ret); } int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data, From fc9f899483435935c1cd7005df29681929d1c99b Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 9 Jul 2011 18:04:39 +0200 Subject: [PATCH 079/207] fs/ocfs2/dlm/dlmlock.c: free kmem_cache_zalloc'd data using kmem_cache_free Memory allocated using kmem_cache_zalloc should be freed using kmem_cache_free, not kfree. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // @@ expression x,e,e1,e2; @@ x = kmem_cache_zalloc(e1,e2) ... when != x = e ?-kfree(x) +kmem_cache_free(e1,x) // Signed-off-by: Julia Lawall Signed-off-by: Joel Becker --- fs/ocfs2/dlm/dlmlock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index f32fcba04923..975810b98492 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -438,7 +438,7 @@ struct dlm_lock * dlm_new_lock(int type, u8 node, u64 cookie, /* zero memory only if kernel-allocated */ lksb = kzalloc(sizeof(*lksb), GFP_NOFS); if (!lksb) { - kfree(lock); + kmem_cache_free(dlm_lock_cache, lock); return NULL; } kernel_allocated = 1; From 8298524803339a9a8df053ebdfebc2975ec55be9 Mon Sep 17 00:00:00 2001 From: Wengang Wang Date: Tue, 12 Jul 2011 16:43:14 +0800 Subject: [PATCH 080/207] ocfs2: make direntry invalid when deleting it When we deleting a direntry from a directory, if it's the first in a block we invalid it by setting inode to 0; otherwise, we merge the deleted one to the prior and contiguous direntry. And we don't truncate directories. There is a problem for the later case since inode is not set to 0. This problem happens when the caller passes a file position as parameter to ocfs2_dir_foreach_blk(). If the position happens to point to a stale(not the first, deleted in betweens of ocfs2_dir_foreach_blk()s) direntry, we are not able to recognize its staleness. So that we treat it as a live one wrongly. The fix is to set inode to 0 in both cases indicating the direntry is stale. This won't introduce additional IOs. Signed-off-by: Wengang Wang Signed-off-by: Joel Becker --- fs/ocfs2/dir.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index 8582e3f4f120..3302088e1f04 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -1184,8 +1184,7 @@ static int __ocfs2_delete_entry(handle_t *handle, struct inode *dir, if (pde) le16_add_cpu(&pde->rec_len, le16_to_cpu(de->rec_len)); - else - de->inode = 0; + de->inode = 0; dir->i_version++; ocfs2_journal_dirty(handle, bh); goto bail; From b8a0ae579fb8d9b21008ac386be08b9428902455 Mon Sep 17 00:00:00 2001 From: Wengang Wang Date: Wed, 12 Oct 2011 15:22:15 +0800 Subject: [PATCH 081/207] ocfs2: Commit transactions in error cases -v2 There are three cases found that in error cases, journal transactions are not committed nor aborted. We should take care of these case by committing the transactions. Otherwise, there would left a journal handle which will lead to , in same process context, the comming ocfs2_start_trans() gets wrong credits. Signed-off-by: Wengang Wang Signed-off-by: Joel Becker --- fs/ocfs2/alloc.c | 2 +- fs/ocfs2/ioctl.c | 3 ++- fs/ocfs2/xattr.c | 10 ++++++---- 3 files changed, 9 insertions(+), 6 deletions(-) diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index ed553c60de82..3165aebb43c8 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -5699,7 +5699,7 @@ int ocfs2_remove_btree_range(struct inode *inode, OCFS2_JOURNAL_ACCESS_WRITE); if (ret) { mlog_errno(ret); - goto out; + goto out_commit; } dquot_free_space_nodirty(inode, diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index d9a6ce779266..726ff265b296 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -122,7 +122,7 @@ static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags, if ((oldflags & OCFS2_IMMUTABLE_FL) || ((flags ^ oldflags) & (OCFS2_APPEND_FL | OCFS2_IMMUTABLE_FL))) { if (!capable(CAP_LINUX_IMMUTABLE)) - goto bail_unlock; + goto bail_commit; } ocfs2_inode->ip_attr = flags; @@ -132,6 +132,7 @@ static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags, if (status < 0) mlog_errno(status); +bail_commit: ocfs2_commit_trans(osb, handle); bail_unlock: ocfs2_inode_unlock(inode, 1); diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index 81ecf9c0bf0a..93d6c80b3922 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -2376,16 +2376,18 @@ static int ocfs2_remove_value_outside(struct inode*inode, } ret = ocfs2_xattr_value_truncate(inode, vb, 0, &ctxt); - if (ret < 0) { - mlog_errno(ret); - break; - } ocfs2_commit_trans(osb, ctxt.handle); if (ctxt.meta_ac) { ocfs2_free_alloc_context(ctxt.meta_ac); ctxt.meta_ac = NULL; } + + if (ret < 0) { + mlog_errno(ret); + break; + } + } if (ctxt.meta_ac) From e41d33af7c037a6f7350f8410b45ce83b50d1b80 Mon Sep 17 00:00:00 2001 From: Dan Magenheimer Date: Mon, 17 Oct 2011 16:47:17 -0700 Subject: [PATCH 082/207] ocfs2: send correct UUID to cleancache initialization ocfs2: Fix cleancache initialization call to correctly pass uuid As reported by Steven Whitehouse in https://lkml.org/lkml/2011/5/27/221 the ocfs2 volume UUID is incorrectly passed to cleancache. As a result, shared-ephemeral tmem pools will not actually be created; instead they will be private (unshared) which misses out on a major benefit of tmem. Reported-by: Steven Whitehouse Signed-off-by: Dan Magenheimer Signed-off-by: Joel Becker --- fs/ocfs2/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 938e2b2b0c9c..4994f8b0e604 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -2360,7 +2360,7 @@ static int ocfs2_initialize_super(struct super_block *sb, mlog_errno(status); goto bail; } - cleancache_init_shared_fs((char *)&uuid_net_key, sb); + cleancache_init_shared_fs((char *)&di->id2.i_super.s_uuid, sb); bail: return status; From 0393afea31874947b1d149b82d17b7dccac4f210 Mon Sep 17 00:00:00 2001 From: "Xiaowei.Hu" Date: Wed, 19 Oct 2011 09:34:19 +0800 Subject: [PATCH 083/207] ocfs2: Add a missing journal credit in ocfs2_link_credits() -v2 With indexed_dir enabled, ocfs2 maintains a list of dirblocks having space. The credit calculation in ocfs2_link_credits() did not correctly account for adding an entry that exactly fills a dirblock that triggers removing that dirblock by changing the pointer in the previous block in the list. The credit calculation did not account for that previous block. To expose, do: mkfs.ocfs2 -b 512 -M local /dev/sdX mount /dev/sdX /ocfs2 mkdir /ocfs2/linkdir touch /ocfs2/linkdir/file1 for i in `seq 1 29` ; do link /ocfs2/linkdir/file1 /ocfs2/linkdir/linklinklinklinklinklink$i; done rm -f /ocfs2/linkdir/linklinklinklinklinklink10 sleep 8 link /ocfs2/linkdir/file1 /ocfs2/linkdir/linklinklinklinklinklinkaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa Note: The link names have been crafted for a 512 byte blocksize. Reproducing with a larger blocksize will require longer (or more) links. The sleep is important. We want jbd2 to commit the transaction so that the missing block does not piggy back on account of the previous transaction. Signed-off-by: XiaoweiHu Reviewed-by: WengangWang Reviewed-by: Sunil.Mushran Signed-off-by: Joel Becker --- fs/ocfs2/journal.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h index 68cf2f6d3c6a..a3385b63ff5e 100644 --- a/fs/ocfs2/journal.h +++ b/fs/ocfs2/journal.h @@ -441,10 +441,11 @@ static inline int ocfs2_mknod_credits(struct super_block *sb, int is_dir, #define OCFS2_SIMPLE_DIR_EXTEND_CREDITS (2) /* file update (nlink, etc) + directory mtime/ctime + dir entry block + quota - * update on dir + index leaf + dx root update for free list */ + * update on dir + index leaf + dx root update for free list + + * previous dirblock update in the free list */ static inline int ocfs2_link_credits(struct super_block *sb) { - return 2*OCFS2_INODE_UPDATE_CREDITS + 3 + + return 2*OCFS2_INODE_UPDATE_CREDITS + 4 + ocfs2_quota_trans_credits(sb); } From df295d4a4b3c98af1a2445a82aef169e7e5d96b8 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Wed, 16 Nov 2011 12:03:10 -0800 Subject: [PATCH 084/207] ocfs2: honor O_(D)SYNC flag in fallocate We need to sync the transaction which updates i_size if the file is marked as needing sync semantics. Signed-off-by: Mark Fasheh Signed-off-by: Joel Becker --- fs/ocfs2/file.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 5c4a74e04ab4..09e3de57cdee 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1950,6 +1950,9 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, if (ret < 0) mlog_errno(ret); + if (file->f_flags & O_SYNC) + handle->h_sync = 1; + ocfs2_commit_trans(osb, handle); out_inode_unlock: From 249ec93c01db8898058899a80ffb537c8d27f86f Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 8 Nov 2011 00:20:39 +0100 Subject: [PATCH 085/207] ocfs2: Use filemap_write_and_wait() instead of write_inode_now() Since ocfs2 has no ->write_inode method, there's no point in calling write_inode_now() from ocfs2_cleanup_delete_inode(). Use filemap_write_and_wait() instead. This helps us to cleanup inode writing interfaces... Signed-off-by: Jan Kara Signed-off-by: Joel Becker --- fs/ocfs2/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index b4c8bb6b8d28..c4bf6ac4a0bb 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c @@ -951,7 +951,7 @@ static void ocfs2_cleanup_delete_inode(struct inode *inode, trace_ocfs2_cleanup_delete_inode( (unsigned long long)OCFS2_I(inode)->ip_blkno, sync_data); if (sync_data) - write_inode_now(inode, 1); + filemap_write_and_wait(inode->i_mapping); truncate_inode_pages(&inode->i_data, 0); } From f475058f48d3acb3c3979311c9532f3113839468 Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Thu, 17 Nov 2011 18:54:29 +0800 Subject: [PATCH 086/207] ARM: imx6q: move clock register map to machine_desc.map_io map_io is the only place to call iotable_init. Signed-off-by: Richard Zhao [shawn.guo: rename imx_clock_map_io() to imx6q_clock_map_io()] Signed-off-by: Shawn Guo --- arch/arm/mach-imx/clock-imx6q.c | 7 +++++-- arch/arm/mach-imx/mach-imx6q.c | 1 + arch/arm/plat-mxc/include/mach/common.h | 1 + 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-imx/clock-imx6q.c b/arch/arm/mach-imx/clock-imx6q.c index 613a1b993bff..039a7abb165a 100644 --- a/arch/arm/mach-imx/clock-imx6q.c +++ b/arch/arm/mach-imx/clock-imx6q.c @@ -1953,14 +1953,17 @@ static struct map_desc imx6q_clock_desc[] = { imx_map_entry(MX6Q, ANATOP, MT_DEVICE), }; +void __init imx6q_clock_map_io(void) +{ + iotable_init(imx6q_clock_desc, ARRAY_SIZE(imx6q_clock_desc)); +} + int __init mx6q_clocks_init(void) { struct device_node *np; void __iomem *base; int i, irq; - iotable_init(imx6q_clock_desc, ARRAY_SIZE(imx6q_clock_desc)); - /* retrieve the freqency of fixed clocks from device tree */ for_each_compatible_node(np, NULL, "fixed-clock") { u32 rate; diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index 8bf5fa349484..9cd860a27af5 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -34,6 +34,7 @@ static void __init imx6q_map_io(void) { imx_lluart_map_io(); imx_scu_map_io(); + imx6q_clock_map_io(); } static void __init imx6q_gpio_add_irq_domain(struct device_node *np, diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 83b745a5e1b7..7a5b6afc0982 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -133,4 +133,5 @@ extern void imx53_qsb_common_init(void); extern void imx53_smd_common_init(void); extern int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode); extern void imx6q_pm_init(void); +extern void imx6q_clock_map_io(void); #endif From bce34d14428d35d9a06ddc10cd46ecef311764c9 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 17 Nov 2011 15:05:14 +0000 Subject: [PATCH 087/207] ARM: perf: initialise used_mask for fake PMU during validation When validating an event group, we call pmu->get_event_idx for each group member in order to check that the group can be scheduled as a unit on an empty PMU. As a result of 3fc2c830 ("ARM: perf: remove event limit from pmu_hw_events"), the used_mask member of struct cpu_hw_events must be setup explicitly, something which we don't do for the fake cpu_hw_events used for validation. This patch sets up an empty used_mask for the fake validation cpu_hw_events, preventing NULL deferences when trying to get the event index. Reported-by: Pawel Moll Signed-off-by: Will Deacon --- arch/arm/kernel/perf_event.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 24e2347be6b1..e508066d3d64 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -343,8 +343,14 @@ validate_group(struct perf_event *event) { struct perf_event *sibling, *leader = event->group_leader; struct pmu_hw_events fake_pmu; + DECLARE_BITMAP(fake_used_mask, ARMPMU_MAX_HWEVENTS); - memset(&fake_pmu, 0, sizeof(fake_pmu)); + /* + * Initialise the fake PMU. We only need to populate the + * used_mask for the purposes of validation. + */ + memset(fake_used_mask, 0, sizeof(fake_used_mask)); + fake_pmu.used_mask = fake_used_mask; if (!validate_event(&fake_pmu, leader)) return -ENOSPC; From 2ed0e645f358c26f4f4a7aed56a9488db0020ad1 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 16 Nov 2011 12:27:39 +0000 Subject: [PATCH 088/207] genirq: Don't allow per cpu interrupts to be suspended The power management functions related to interrupts do not know (yet) about per-cpu interrupts and end up calling the wrong low-level methods to enable/disable interrupts. This leads to all kind of interesting issues (action taken on one CPU only, updating a refcount which is not used otherwise...). The workaround for the time being is simply to flag these interrupts with IRQF_NO_SUSPEND. At least on ARM, these interrupts are actually dealt with at the architecture level. Reported-by: Santosh Shilimkar Tested-by: Santosh Shilimkar Signed-off-by: Marc Zyngier Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1321446459-31409-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner --- kernel/irq/manage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 67ce837ae52c..0e2b179bc7b3 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -1596,7 +1596,7 @@ int request_percpu_irq(unsigned int irq, irq_handler_t handler, return -ENOMEM; action->handler = handler; - action->flags = IRQF_PERCPU; + action->flags = IRQF_PERCPU | IRQF_NO_SUSPEND; action->name = devname; action->percpu_dev_id = dev_id; From 2391a0e06789a3f1718dee30b282562f7ed28c87 Mon Sep 17 00:00:00 2001 From: Timo Juhani Lindfors Date: Thu, 17 Nov 2011 02:52:50 +0200 Subject: [PATCH 089/207] ASoC: wm8753: Skip noop reconfiguration of DAI mode This patch makes it possible to set DAI mode to its currently applied value even if codec is active. This is necessary to allow aplay -t raw -r 44100 -f S16_LE -c 2 < /dev/urandom & alsactl store -f backup.state alsactl restore -f backup.state to work without returning errors. This patch is based on a patch sent by Klaus Kurzmann . Signed-off-by: Timo Juhani Lindfors Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- sound/soc/codecs/wm8753.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c index a9504710bb69..3a629d0d690e 100644 --- a/sound/soc/codecs/wm8753.c +++ b/sound/soc/codecs/wm8753.c @@ -190,6 +190,9 @@ static int wm8753_set_dai(struct snd_kcontrol *kcontrol, struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); u16 ioctl; + if (wm8753->dai_func == ucontrol->value.integer.value[0]) + return 0; + if (codec->active) return -EBUSY; From f6f8285132907757ef84ef8dae0a1244b8cde6ac Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 17 Nov 2011 12:58:07 -0800 Subject: [PATCH 090/207] pstore: pass allocated memory region back to caller The buf_lock cannot be held while populating the inodes, so make the backend pass forward an allocated and filled buffer instead. This solves the following backtrace. The effect is that "buf" is only ever used to notify the backends that something was written to it, and shouldn't be used in the read path. To replace the buf_lock during the read path, isolate the open/read/close loop with a separate mutex to maintain serialized access to the backend. Note that is is up to the pstore backend to cope if the (*write)() path is called in the middle of the read path. [ 59.691019] BUG: sleeping function called from invalid context at .../mm/slub.c:847 [ 59.691019] in_atomic(): 0, irqs_disabled(): 1, pid: 1819, name: mount [ 59.691019] Pid: 1819, comm: mount Not tainted 3.0.8 #1 [ 59.691019] Call Trace: [ 59.691019] [<810252d5>] __might_sleep+0xc3/0xca [ 59.691019] [<810a26e6>] kmem_cache_alloc+0x32/0xf3 [ 59.691019] [<810b53ac>] ? __d_lookup_rcu+0x6f/0xf4 [ 59.691019] [<810b68b1>] alloc_inode+0x2a/0x64 [ 59.691019] [<810b6903>] new_inode+0x18/0x43 [ 59.691019] [<81142447>] pstore_get_inode.isra.1+0x11/0x98 [ 59.691019] [<81142623>] pstore_mkfile+0xae/0x26f [ 59.691019] [<810a2a66>] ? kmem_cache_free+0x19/0xb1 [ 59.691019] [<8116c821>] ? ida_get_new_above+0x140/0x158 [ 59.691019] [<811708ea>] ? __init_rwsem+0x1e/0x2c [ 59.691019] [<810b67e8>] ? inode_init_always+0x111/0x1b0 [ 59.691019] [<8102127e>] ? should_resched+0xd/0x27 [ 59.691019] [<8137977f>] ? _cond_resched+0xd/0x21 [ 59.691019] [<81142abf>] pstore_get_records+0x52/0xa7 [ 59.691019] [<8114254b>] pstore_fill_super+0x7d/0x91 [ 59.691019] [<810a7ff5>] mount_single+0x46/0x82 [ 59.691019] [<8114231a>] pstore_mount+0x15/0x17 [ 59.691019] [<811424ce>] ? pstore_get_inode.isra.1+0x98/0x98 [ 59.691019] [<810a8199>] mount_fs+0x5a/0x12d [ 59.691019] [<810b9174>] ? alloc_vfsmnt+0xa4/0x14a [ 59.691019] [<810b9474>] vfs_kern_mount+0x4f/0x7d [ 59.691019] [<810b9d7e>] do_kern_mount+0x34/0xb2 [ 59.691019] [<810bb15f>] do_mount+0x5fc/0x64a [ 59.691019] [<810912fb>] ? strndup_user+0x2e/0x3f [ 59.691019] [<810bb3cb>] sys_mount+0x66/0x99 [ 59.691019] [<8137b537>] sysenter_do_call+0x12/0x26 Signed-off-by: Kees Cook Signed-off-by: Tony Luck --- drivers/acpi/apei/erst.c | 31 ++++++++++++++++++++++--------- drivers/firmware/efivars.c | 9 +++++++-- fs/pstore/platform.c | 13 ++++++++----- include/linux/pstore.h | 4 +++- 4 files changed, 40 insertions(+), 17 deletions(-) diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index 127408069ca7..631b9477b99c 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -932,7 +932,8 @@ static int erst_check_table(struct acpi_table_erst *erst_tab) static int erst_open_pstore(struct pstore_info *psi); static int erst_close_pstore(struct pstore_info *psi); static ssize_t erst_reader(u64 *id, enum pstore_type_id *type, - struct timespec *time, struct pstore_info *psi); + struct timespec *time, char **buf, + struct pstore_info *psi); static int erst_writer(enum pstore_type_id type, u64 *id, unsigned int part, size_t size, struct pstore_info *psi); static int erst_clearer(enum pstore_type_id type, u64 id, @@ -986,17 +987,23 @@ static int erst_close_pstore(struct pstore_info *psi) } static ssize_t erst_reader(u64 *id, enum pstore_type_id *type, - struct timespec *time, struct pstore_info *psi) + struct timespec *time, char **buf, + struct pstore_info *psi) { int rc; ssize_t len = 0; u64 record_id; - struct cper_pstore_record *rcd = (struct cper_pstore_record *) - (erst_info.buf - sizeof(*rcd)); + struct cper_pstore_record *rcd; + size_t rcd_len = sizeof(*rcd) + erst_info.bufsize; if (erst_disable) return -ENODEV; + rcd = kmalloc(rcd_len, GFP_KERNEL); + if (!rcd) { + rc = -ENOMEM; + goto out; + } skip: rc = erst_get_record_id_next(&reader_pos, &record_id); if (rc) @@ -1004,22 +1011,27 @@ static ssize_t erst_reader(u64 *id, enum pstore_type_id *type, /* no more record */ if (record_id == APEI_ERST_INVALID_RECORD_ID) { - rc = -1; + rc = -EINVAL; goto out; } - len = erst_read(record_id, &rcd->hdr, sizeof(*rcd) + - erst_info.bufsize); + len = erst_read(record_id, &rcd->hdr, rcd_len); /* The record may be cleared by others, try read next record */ if (len == -ENOENT) goto skip; - else if (len < 0) { - rc = -1; + else if (len < sizeof(*rcd)) { + rc = -EIO; goto out; } if (uuid_le_cmp(rcd->hdr.creator_id, CPER_CREATOR_PSTORE) != 0) goto skip; + *buf = kmalloc(len, GFP_KERNEL); + if (*buf == NULL) { + rc = -ENOMEM; + goto out; + } + memcpy(*buf, rcd->data, len - sizeof(*rcd)); *id = record_id; if (uuid_le_cmp(rcd->sec_hdr.section_type, CPER_SECTION_TYPE_DMESG) == 0) @@ -1037,6 +1049,7 @@ static ssize_t erst_reader(u64 *id, enum pstore_type_id *type, time->tv_nsec = 0; out: + kfree(rcd); return (rc < 0) ? rc : (len - sizeof(*rcd)); } diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 8370f72d87ff..a54a6b972ced 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -457,7 +457,8 @@ static int efi_pstore_close(struct pstore_info *psi) } static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type, - struct timespec *timespec, struct pstore_info *psi) + struct timespec *timespec, + char **buf, struct pstore_info *psi) { efi_guid_t vendor = LINUX_EFI_CRASH_GUID; struct efivars *efivars = psi->data; @@ -478,7 +479,11 @@ static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type, timespec->tv_nsec = 0; get_var_data_locked(efivars, &efivars->walk_entry->var); size = efivars->walk_entry->var.DataSize; - memcpy(psi->buf, efivars->walk_entry->var.Data, size); + *buf = kmalloc(size, GFP_KERNEL); + if (*buf == NULL) + return -ENOMEM; + memcpy(*buf, efivars->walk_entry->var.Data, + size); efivars->walk_entry = list_entry(efivars->walk_entry->list.next, struct efivar_entry, list); return size; diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 2bd620f0d796..57bbf9078ac8 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -167,6 +167,7 @@ int pstore_register(struct pstore_info *psi) } psinfo = psi; + mutex_init(&psinfo->read_mutex); spin_unlock(&pstore_lock); if (owner && !try_module_get(owner)) { @@ -195,30 +196,32 @@ EXPORT_SYMBOL_GPL(pstore_register); void pstore_get_records(int quiet) { struct pstore_info *psi = psinfo; + char *buf = NULL; ssize_t size; u64 id; enum pstore_type_id type; struct timespec time; int failed = 0, rc; - unsigned long flags; if (!psi) return; - spin_lock_irqsave(&psinfo->buf_lock, flags); + mutex_lock(&psi->read_mutex); rc = psi->open(psi); if (rc) goto out; - while ((size = psi->read(&id, &type, &time, psi)) > 0) { - rc = pstore_mkfile(type, psi->name, id, psi->buf, (size_t)size, + while ((size = psi->read(&id, &type, &time, &buf, psi)) > 0) { + rc = pstore_mkfile(type, psi->name, id, buf, (size_t)size, time, psi); + kfree(buf); + buf = NULL; if (rc && (rc != -EEXIST || !quiet)) failed++; } psi->close(psi); out: - spin_unlock_irqrestore(&psinfo->buf_lock, flags); + mutex_unlock(&psi->read_mutex); if (failed) printk(KERN_WARNING "pstore: failed to load %d record(s) from '%s'\n", diff --git a/include/linux/pstore.h b/include/linux/pstore.h index ea567321ae3c..2ca8cde5459d 100644 --- a/include/linux/pstore.h +++ b/include/linux/pstore.h @@ -35,10 +35,12 @@ struct pstore_info { spinlock_t buf_lock; /* serialize access to 'buf' */ char *buf; size_t bufsize; + struct mutex read_mutex; /* serialize open/read/close */ int (*open)(struct pstore_info *psi); int (*close)(struct pstore_info *psi); ssize_t (*read)(u64 *id, enum pstore_type_id *type, - struct timespec *time, struct pstore_info *psi); + struct timespec *time, char **buf, + struct pstore_info *psi); int (*write)(enum pstore_type_id type, u64 *id, unsigned int part, size_t size, struct pstore_info *psi); int (*erase)(enum pstore_type_id type, u64 id, From d004e024058a0eaca097513ce62cbcf978913e0a Mon Sep 17 00:00:00 2001 From: Hector Palacios Date: Mon, 14 Nov 2011 11:15:25 +0100 Subject: [PATCH 091/207] timekeeping: add arch_offset hook to ktime_get functions ktime_get and ktime_get_ts were calling timekeeping_get_ns() but later they were not calling arch_gettimeoffset() so architectures using this mechanism returned 0 ns when calling these functions. This happened for example when running Busybox's ping which calls syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts) which eventually calls ktime_get. As a result the returned ping travel time was zero. CC: stable@kernel.org Signed-off-by: Hector Palacios Signed-off-by: John Stultz --- kernel/time/timekeeping.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index e9f60d311436..237841378c03 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -249,6 +249,8 @@ ktime_t ktime_get(void) secs = xtime.tv_sec + wall_to_monotonic.tv_sec; nsecs = xtime.tv_nsec + wall_to_monotonic.tv_nsec; nsecs += timekeeping_get_ns(); + /* If arch requires, add in gettimeoffset() */ + nsecs += arch_gettimeoffset(); } while (read_seqretry(&xtime_lock, seq)); /* @@ -280,6 +282,8 @@ void ktime_get_ts(struct timespec *ts) *ts = xtime; tomono = wall_to_monotonic; nsecs = timekeeping_get_ns(); + /* If arch requires, add in gettimeoffset() */ + nsecs += arch_gettimeoffset(); } while (read_seqretry(&xtime_lock, seq)); From ef319c6e095676e0247fd24ef8ff7f085c19744f Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Thu, 20 Oct 2011 13:36:59 +0300 Subject: [PATCH 092/207] OMAPDSS: HDMI: fix returned HDMI pixel clock hdmi_get_pixel_clock() returns the pixel clock in Hz, but the pck is stored as kHz. This means the return value has to be multiplied by 1000, not by 10000 as the code did. Signed-off-by: Tomi Valkeinen --- drivers/video/omap2/dss/hdmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index 3262f0f1fa35..c56378c555b0 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -269,7 +269,7 @@ static void update_hdmi_timings(struct hdmi_config *cfg, unsigned long hdmi_get_pixel_clock(void) { /* HDMI Pixel Clock in Mhz */ - return hdmi.ip_data.cfg.timings.timings.pixel_clock * 10000; + return hdmi.ip_data.cfg.timings.timings.pixel_clock * 1000; } static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy, From 1c6bc899723ca8c0d58044c3661f13ac2369e55f Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 8 Nov 2011 09:54:50 +0200 Subject: [PATCH 093/207] OMAPFB: fix compilation warnings due to missing include Fix warnings similar to this by including module.h: drivers/video/omap/dispc.c:276:1: warning: data definition has no type or storage class drivers/video/omap/dispc.c:276:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' Signed-off-by: Tomi Valkeinen --- drivers/video/omap/dispc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c index 0ccd7adf47bb..6f61e781f15a 100644 --- a/drivers/video/omap/dispc.c +++ b/drivers/video/omap/dispc.c @@ -19,6 +19,7 @@ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include +#include #include #include #include From f95cb5ebd834117ff4829a460656095a0ae63921 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 1 Nov 2011 10:50:45 +0200 Subject: [PATCH 094/207] OMAPDSS: DISPC: skip scaling calculations when not scaling Current code calculates scaling factors for video overlays even when the overlays are not scaled. Change the code to skip calculations when not scaling. This optimizes the code a bit, but also fixes a problem when configuring an overlay for a disabled display: if the display is disabled we don't necessarily know the pixel clock used when the display is enabled, and in some cases (like HDMI) the pixel clock is set to zero until a proper video mode is set later. A wrong pixel clock will mess up the scaling calculations, causing an error like: omapdss DISPC error: failed to set up scaling, required fclk rate = 0 Hz, current fclk rate = 170666666 Hz A proper fix would be to check later whether the clocks are enough for the scaling, at the point when the overlay or display is actually enabled, but this patch removes the problem for now. Signed-off-by: Tomi Valkeinen --- drivers/video/omap2/dss/dispc.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 3532782551cb..5c81533eacaa 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -1720,12 +1720,11 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane, const int maxdownscale = dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE); unsigned long fclk = 0; - if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { - if (width != out_width || height != out_height) - return -EINVAL; - else - return 0; - } + if (width == out_width && height == out_height) + return 0; + + if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) + return -EINVAL; if (out_width < width / maxdownscale || out_width > width * 8) From dbd1b5473ce8ae40fe7385eacc9294355eec0676 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Sat, 19 Nov 2011 11:41:30 +0100 Subject: [PATCH 095/207] ALSA: hda - Add pin fix for Alienware M17x R3 Reported-by: Albert Pool Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_sigmatel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 470f6f286e81..f3658658548e 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -1641,6 +1641,8 @@ static const struct snd_pci_quirk stac92hd73xx_codec_id_cfg_tbl[] = { "Alienware M17x", STAC_ALIENWARE_M17X), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x043a, "Alienware M17x", STAC_ALIENWARE_M17X), + SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0490, + "Alienware M17x", STAC_ALIENWARE_M17X), {} /* terminator */ }; From 27c9cd7e601632b3794e1c3344d37b86917ffb43 Mon Sep 17 00:00:00 2001 From: Jeff Ohlstein Date: Fri, 18 Nov 2011 15:47:10 -0800 Subject: [PATCH 096/207] hrtimer: Fix extra wakeups from __remove_hrtimer() __remove_hrtimer() attempts to reprogram the clockevent device when the timer being removed is the next to expire. However, __remove_hrtimer() reprograms the clockevent *before* removing the timer from the timerqueue and thus when hrtimer_force_reprogram() finds the next timer to expire it finds the timer we're trying to remove. This is especially noticeable when the system switches to NOHz mode and the system tick is removed. The timer tick is removed from the system but the clockevent is programmed to wakeup in another HZ anyway. Silence the extra wakeup by removing the timer from the timerqueue before calling hrtimer_force_reprogram() so that we actually program the clockevent for the next timer to expire. This was broken by 998adc3 "hrtimers: Convert hrtimers to use timerlist infrastructure". Signed-off-by: Jeff Ohlstein Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1321660030-8520-1-git-send-email-johlstei@codeaurora.org Signed-off-by: Thomas Gleixner --- kernel/hrtimer.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index a9205e32a059..2043c08d36c8 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -885,10 +885,13 @@ static void __remove_hrtimer(struct hrtimer *timer, struct hrtimer_clock_base *base, unsigned long newstate, int reprogram) { + struct timerqueue_node *next_timer; if (!(timer->state & HRTIMER_STATE_ENQUEUED)) goto out; - if (&timer->node == timerqueue_getnext(&base->active)) { + next_timer = timerqueue_getnext(&base->active); + timerqueue_del(&base->active, &timer->node); + if (&timer->node == next_timer) { #ifdef CONFIG_HIGH_RES_TIMERS /* Reprogram the clock event device. if enabled */ if (reprogram && hrtimer_hres_active()) { @@ -901,7 +904,6 @@ static void __remove_hrtimer(struct hrtimer *timer, } #endif } - timerqueue_del(&base->active, &timer->node); if (!timerqueue_getnext(&base->active)) base->cpu_base->active_bases &= ~(1 << base->index); out: From 0aed4a95ce3b39acfceb38ab7f93c7906b4a27f8 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 20 Nov 2011 15:10:27 +0100 Subject: [PATCH 097/207] ASoC: adau1373: fix DB_RANGE size Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent reading more data than actually is in the array. Signed-off-by: Clemens Ladisch --- sound/soc/codecs/adau1373.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c index 1ccf8dd47576..45c63028b40d 100644 --- a/sound/soc/codecs/adau1373.c +++ b/sound/soc/codecs/adau1373.c @@ -245,7 +245,7 @@ static const char *adau1373_bass_hpf_cutoff_text[] = { }; static const unsigned int adau1373_bass_tlv[] = { - TLV_DB_RANGE_HEAD(4), + TLV_DB_RANGE_HEAD(3), 0, 2, TLV_DB_SCALE_ITEM(-600, 600, 1), 3, 4, TLV_DB_SCALE_ITEM(950, 250, 0), 5, 7, TLV_DB_SCALE_ITEM(1400, 150, 0), From a19ea0b8ec1f6892bf18f461d5023c9299e1417b Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 20 Nov 2011 15:11:54 +0100 Subject: [PATCH 098/207] ASoC: rt5631: fix DB_RANGE size Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent the last entry from being omitted. Signed-off-by: Clemens Ladisch --- sound/soc/codecs/rt5631.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/rt5631.c b/sound/soc/codecs/rt5631.c index 27a078cbb6eb..4646e808b90a 100644 --- a/sound/soc/codecs/rt5631.c +++ b/sound/soc/codecs/rt5631.c @@ -177,7 +177,7 @@ static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -95625, 375, 0); static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -3450, 150, 0); /* {0, +20, +24, +30, +35, +40, +44, +50, +52}dB */ static unsigned int mic_bst_tlv[] = { - TLV_DB_RANGE_HEAD(6), + TLV_DB_RANGE_HEAD(7), 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0), 1, 1, TLV_DB_SCALE_ITEM(2000, 0, 0), 2, 2, TLV_DB_SCALE_ITEM(2400, 0, 0), From 740fb9d512d91b1d6192ea13c109efa05b101424 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 20 Nov 2011 15:12:26 +0100 Subject: [PATCH 099/207] ASoC: sgtl5000: fix DB_RANGE size Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent reading more data than actually is in the array. Signed-off-by: Clemens Ladisch --- sound/soc/codecs/sgtl5000.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index d15695d1c273..bbcf921166f7 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -365,7 +365,7 @@ static const DECLARE_TLV_DB_SCALE(capture_6db_attenuate, -600, 600, 0); /* tlv for mic gain, 0db 20db 30db 40db */ static const unsigned int mic_gain_tlv[] = { - TLV_DB_RANGE_HEAD(4), + TLV_DB_RANGE_HEAD(2), 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0), 1, 3, TLV_DB_SCALE_ITEM(2000, 1000, 0), }; From 43e9dc7bce9f21355cd2aa493a99281eae03b156 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 20 Nov 2011 15:13:27 +0100 Subject: [PATCH 100/207] ASoC: wm8962: fix DB_RANGE size Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent reading more data than actually is in the arrays. Signed-off-by: Clemens Ladisch --- sound/soc/codecs/wm8962.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c index 91d3c6dbeba3..53edd9a8c758 100644 --- a/sound/soc/codecs/wm8962.c +++ b/sound/soc/codecs/wm8962.c @@ -1973,7 +1973,7 @@ static int wm8962_reset(struct snd_soc_codec *codec) static const DECLARE_TLV_DB_SCALE(inpga_tlv, -2325, 75, 0); static const DECLARE_TLV_DB_SCALE(mixin_tlv, -1500, 300, 0); static const unsigned int mixinpga_tlv[] = { - TLV_DB_RANGE_HEAD(7), + TLV_DB_RANGE_HEAD(5), 0, 1, TLV_DB_SCALE_ITEM(0, 600, 0), 2, 2, TLV_DB_SCALE_ITEM(1300, 1300, 0), 3, 4, TLV_DB_SCALE_ITEM(1800, 200, 0), @@ -1988,7 +1988,7 @@ static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); static const DECLARE_TLV_DB_SCALE(hp_tlv, -700, 100, 0); static const unsigned int classd_tlv[] = { - TLV_DB_RANGE_HEAD(7), + TLV_DB_RANGE_HEAD(2), 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0), 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0), }; From dac678f5c281fac55aadfa5f390c12a8d14bbc67 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 20 Nov 2011 15:14:11 +0100 Subject: [PATCH 101/207] ASoC: wm8993: fix DB_RANGE size Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent reading more data than actually is in the array. Signed-off-by: Clemens Ladisch --- sound/soc/codecs/wm8993.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/wm8993.c b/sound/soc/codecs/wm8993.c index eec8e1435116..d1a142f48b09 100644 --- a/sound/soc/codecs/wm8993.c +++ b/sound/soc/codecs/wm8993.c @@ -512,7 +512,7 @@ static const DECLARE_TLV_DB_SCALE(drc_comp_threash, -4500, 75, 0); static const DECLARE_TLV_DB_SCALE(drc_comp_amp, -2250, 75, 0); static const DECLARE_TLV_DB_SCALE(drc_min_tlv, -1800, 600, 0); static const unsigned int drc_max_tlv[] = { - TLV_DB_RANGE_HEAD(4), + TLV_DB_RANGE_HEAD(2), 0, 2, TLV_DB_SCALE_ITEM(1200, 600, 0), 3, 3, TLV_DB_SCALE_ITEM(3600, 0, 0), }; From a1320fee27352b608a82020a47a59bb15e6e5db8 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 20 Nov 2011 15:14:55 +0100 Subject: [PATCH 102/207] ASoC: wm9090: fix DB_RANGE size Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent reading more data than actually is in the arrays. Signed-off-by: Clemens Ladisch --- sound/soc/codecs/wm9090.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/wm9090.c b/sound/soc/codecs/wm9090.c index 2b5252c9e377..f94c06057c64 100644 --- a/sound/soc/codecs/wm9090.c +++ b/sound/soc/codecs/wm9090.c @@ -177,19 +177,19 @@ static void wait_for_dc_servo(struct snd_soc_codec *codec) } static const unsigned int in_tlv[] = { - TLV_DB_RANGE_HEAD(6), + TLV_DB_RANGE_HEAD(3), 0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0), 1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0), 4, 6, TLV_DB_SCALE_ITEM(600, 600, 0), }; static const unsigned int mix_tlv[] = { - TLV_DB_RANGE_HEAD(4), + TLV_DB_RANGE_HEAD(2), 0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0), 3, 3, TLV_DB_SCALE_ITEM(0, 0, 0), }; static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0); static const unsigned int spkboost_tlv[] = { - TLV_DB_RANGE_HEAD(7), + TLV_DB_RANGE_HEAD(2), 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0), 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0), }; From 028aa634e180107ac93b790c0fed7376c0402d1a Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 20 Nov 2011 15:15:31 +0100 Subject: [PATCH 103/207] ASoC: wm_hubs: fix DB_RANGE size Give the correct number of entries to TLV_DB_RANGE_HEAD to prevent reading more data than actually is in the array. Signed-off-by: Clemens Ladisch --- sound/soc/codecs/wm_hubs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c index 84f33d4ea2cd..48e61e912400 100644 --- a/sound/soc/codecs/wm_hubs.c +++ b/sound/soc/codecs/wm_hubs.c @@ -40,7 +40,7 @@ static const DECLARE_TLV_DB_SCALE(outmix_tlv, -2100, 300, 0); static const DECLARE_TLV_DB_SCALE(spkmixout_tlv, -1800, 600, 1); static const DECLARE_TLV_DB_SCALE(outpga_tlv, -5700, 100, 0); static const unsigned int spkboost_tlv[] = { - TLV_DB_RANGE_HEAD(7), + TLV_DB_RANGE_HEAD(2), 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0), 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0), }; From ef0cd47093a6c4b8a1f17d7be02a966f7805ff41 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 19 Nov 2011 14:41:07 +0800 Subject: [PATCH 104/207] ASoC: cs4271: Fix wrong mask parameter in some snd_soc_update_bits calls Signed-off-by: Axel Lin Acked-by: Alexander Sverdlin Signed-off-by: Mark Brown --- sound/soc/codecs/cs4271.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c index 23d1bd5dadda..69fde1506fe1 100644 --- a/sound/soc/codecs/cs4271.c +++ b/sound/soc/codecs/cs4271.c @@ -434,7 +434,8 @@ static int cs4271_soc_suspend(struct snd_soc_codec *codec, pm_message_t mesg) { int ret; /* Set power-down bit */ - ret = snd_soc_update_bits(codec, CS4271_MODE2, 0, CS4271_MODE2_PDN); + ret = snd_soc_update_bits(codec, CS4271_MODE2, CS4271_MODE2_PDN, + CS4271_MODE2_PDN); if (ret < 0) return ret; return 0; @@ -501,8 +502,9 @@ static int cs4271_probe(struct snd_soc_codec *codec) return ret; } - ret = snd_soc_update_bits(codec, CS4271_MODE2, 0, - CS4271_MODE2_PDN | CS4271_MODE2_CPEN); + ret = snd_soc_update_bits(codec, CS4271_MODE2, + CS4271_MODE2_PDN | CS4271_MODE2_CPEN, + CS4271_MODE2_PDN | CS4271_MODE2_CPEN); if (ret < 0) return ret; ret = snd_soc_update_bits(codec, CS4271_MODE2, CS4271_MODE2_PDN, 0); From 274252862f386b7868f35bf5ceaa5391a8ccfdf3 Mon Sep 17 00:00:00 2001 From: Phil Sutter Date: Wed, 16 Nov 2011 18:28:01 +0100 Subject: [PATCH 105/207] crypto: mv_cesa - fix hashing of chunks > 1920 bytes This was broken by commit 7759995c75ae0cbd4c861582908449f6b6208e7a (yes, myself). The basic problem here is since the digest state is only saved after the last chunk, the state array is only valid when handling the first chunk of the next buffer. Broken since linux-3.0. Signed-off-by: Phil Sutter Cc: # 3.1.x Signed-off-by: Herbert Xu --- drivers/crypto/mv_cesa.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c index 3cf303ee3fe3..38a3297ae2be 100644 --- a/drivers/crypto/mv_cesa.c +++ b/drivers/crypto/mv_cesa.c @@ -342,11 +342,13 @@ static void mv_process_hash_current(int first_block) else op.config |= CFG_MID_FRAG; - writel(req_ctx->state[0], cpg->reg + DIGEST_INITIAL_VAL_A); - writel(req_ctx->state[1], cpg->reg + DIGEST_INITIAL_VAL_B); - writel(req_ctx->state[2], cpg->reg + DIGEST_INITIAL_VAL_C); - writel(req_ctx->state[3], cpg->reg + DIGEST_INITIAL_VAL_D); - writel(req_ctx->state[4], cpg->reg + DIGEST_INITIAL_VAL_E); + if (first_block) { + writel(req_ctx->state[0], cpg->reg + DIGEST_INITIAL_VAL_A); + writel(req_ctx->state[1], cpg->reg + DIGEST_INITIAL_VAL_B); + writel(req_ctx->state[2], cpg->reg + DIGEST_INITIAL_VAL_C); + writel(req_ctx->state[3], cpg->reg + DIGEST_INITIAL_VAL_D); + writel(req_ctx->state[4], cpg->reg + DIGEST_INITIAL_VAL_E); + } } memcpy(cpg->sram + SRAM_CONFIG, &op, sizeof(struct sec_accel_config)); From 27533df80e93dc164e39d47281bbbd608f9014a6 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 20 Nov 2011 23:57:49 +0300 Subject: [PATCH 106/207] ALSA: cs5535 - Fix an endianness conversion desc->size is supposed to be a le16 type. On a big endian system the current code will set ->size to zero. We fixed a similar bug on the next line but missed this one. Signed-off-by: Dan Carpenter Signed-off-by: Takashi Iwai --- sound/pci/cs5535audio/cs5535audio_pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c index e083122ca55a..dbf94b189e75 100644 --- a/sound/pci/cs5535audio/cs5535audio_pcm.c +++ b/sound/pci/cs5535audio/cs5535audio_pcm.c @@ -148,7 +148,7 @@ static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au, struct cs5535audio_dma_desc *desc = &((struct cs5535audio_dma_desc *) dma->desc_buf.area)[i]; desc->addr = cpu_to_le32(addr); - desc->size = cpu_to_le32(period_bytes); + desc->size = cpu_to_le16(period_bytes); desc->ctlreserved = cpu_to_le16(PRD_EOP); desc_addr += sizeof(struct cs5535audio_dma_desc); addr += period_bytes; From 11ed0ba1754841316d4095478944300acf19acc3 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 14 Nov 2011 17:24:58 +0100 Subject: [PATCH 107/207] ARM: 7161/1: errata: no automatic store buffer drain This patch implements a workaround for PL310 erratum 769419. On revisions of the PL310 prior to r3p2, the Store Buffer does not automatically drain. This can cause normal, non-cacheable writes to be retained when the memory system is idle, leading to suboptimal I/O performance for drivers using coherent DMA. This patch adds an optional wmb() call to the cpu_idle loop. On systems with an outer cache, this causes an explicit flush of the store buffer. Cc: stable@vger.kernel.org Acked-by: Catalin Marinas Tested-by: Marc Zyngier Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/Kconfig | 12 ++++++++++++ arch/arm/kernel/process.c | 3 +++ 2 files changed, 15 insertions(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 44789eff983f..83aa746e71d6 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1352,6 +1352,18 @@ config ARM_ERRATA_764369 relevant cache maintenance functions and sets a specific bit in the diagnostic control register of the SCU. +config PL310_ERRATA_769419 + bool "PL310 errata: no automatic Store Buffer drain" + depends on CACHE_L2X0 + help + On revisions of the PL310 prior to r3p2, the Store Buffer does + not automatically drain. This can cause normal, non-cacheable + writes to be retained when the memory system is idle, leading + to suboptimal I/O performance for drivers using coherent DMA. + This option adds a write barrier to the cpu_idle loop so that, + on systems with an outer cache, the store buffer is drained + explicitly. + endmenu source "arch/arm/common/Kconfig" diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 75316f0dd02a..3d0c6fb74ae4 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -192,6 +192,9 @@ void cpu_idle(void) #endif local_irq_disable(); +#ifdef CONFIG_PL310_ERRATA_769419 + wmb(); +#endif if (hlt_counter) { local_irq_enable(); cpu_relax(); From fa0ce4035d4897b0642132866d896a906429f45e Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 14 Nov 2011 17:24:57 +0100 Subject: [PATCH 108/207] ARM: 7162/1: errata: tidy up Kconfig options for PL310 errata workarounds The Kconfig options for the PL310 errata workarounds do not use a consistent naming scheme for either the config option or the bool description. This patch tidies up the options by ensuring that the bool descriptions are prefixed with "PL310 errata:" and the config options are prefixed with PL310_ERRATA_, making it much clearer in menuconfig as to what the workarounds are for. Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/Kconfig | 8 ++++---- arch/arm/mm/cache-l2x0.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 83aa746e71d6..e084b7e981e8 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1231,7 +1231,7 @@ config ARM_ERRATA_742231 capabilities of the processor. config PL310_ERRATA_588369 - bool "Clean & Invalidate maintenance operations do not invalidate clean lines" + bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines" depends on CACHE_L2X0 help The PL310 L2 cache controller implements three types of Clean & @@ -1256,7 +1256,7 @@ config ARM_ERRATA_720789 entries regardless of the ASID. config PL310_ERRATA_727915 - bool "Background Clean & Invalidate by Way operation can cause data corruption" + bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption" depends on CACHE_L2X0 help PL310 implements the Clean & Invalidate by Way L2 cache maintenance @@ -1289,8 +1289,8 @@ config ARM_ERRATA_751472 operation is received by a CPU before the ICIALLUIS has completed, potentially leading to corrupted entries in the cache or TLB. -config ARM_ERRATA_753970 - bool "ARM errata: cache sync operation may be faulty" +config PL310_ERRATA_753970 + bool "PL310 errata: cache sync operation may be faulty" depends on CACHE_PL310 help This option enables the workaround for the 753970 PL310 (r3p0) erratum. diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 8ac9e9f84790..b1e192ba8c24 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -61,7 +61,7 @@ static inline void cache_sync(void) { void __iomem *base = l2x0_base; -#ifdef CONFIG_ARM_ERRATA_753970 +#ifdef CONFIG_PL310_ERRATA_753970 /* write to an unmmapped register */ writel_relaxed(0, base + L2X0_DUMMY_REG); #else From 2674dd0b1c07d8b8dfb4872fc7b41841f05cb957 Mon Sep 17 00:00:00 2001 From: Javi Merino Date: Wed, 16 Nov 2011 12:21:24 +0100 Subject: [PATCH 109/207] ARM: 7163/2: PL330: Only register usable channels When the manager is running non-secure, the only channels that can issue interrupts are the ones that have a 1 in their corresponding bit in Configuration Register 3. The other ones will generate an abort when trying to signal the end of the transaction so they are useless in non-secure mode. Reference: <1320244259-10496-2-git-send-email-javi.merino@arm.com> Signed-off-by: Javi Merino Acked-by: Jassi Brar Signed-off-by: Russell King --- arch/arm/common/pl330.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm/common/pl330.c b/arch/arm/common/pl330.c index 7129cfbdacd6..f748a385693f 100644 --- a/arch/arm/common/pl330.c +++ b/arch/arm/common/pl330.c @@ -1623,6 +1623,11 @@ static inline int _alloc_event(struct pl330_thread *thrd) return -1; } +static bool _chan_ns(const struct pl330_info *pi, int i) +{ + return pi->pcfg.irq_ns & (1 << i); +} + /* Upon success, returns IdentityToken for the * allocated channel, NULL otherwise. */ @@ -1647,7 +1652,8 @@ void *pl330_request_channel(const struct pl330_info *pi) for (i = 0; i < chans; i++) { thrd = &pl330->channels[i]; - if (thrd->free) { + if ((thrd->free) && (!_manager_ns(thrd) || + _chan_ns(pi, i))) { thrd->ev = _alloc_event(thrd); if (thrd->ev >= 0) { thrd->free = false; From 1c8a7c1fbfc7ae2362d26559df26b99c806b68b5 Mon Sep 17 00:00:00 2001 From: Javi Merino Date: Wed, 16 Nov 2011 12:45:39 +0100 Subject: [PATCH 110/207] ARM: 7165/2: PL330: Fix typo in _prepare_ccr() scctl should be shifted by CC_SRCCTRL_SHFT and dcctl by CC_DSTCCTRL_SHFT, not the other way round. Reference: <1320244259-10496-4-git-send-email-javi.merino@arm.com> Signed-off-by: Javi Merino Acked-by: Jassi Brar Signed-off-by: Russell King --- arch/arm/common/pl330.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/common/pl330.c b/arch/arm/common/pl330.c index f748a385693f..f407a6b35d3d 100644 --- a/arch/arm/common/pl330.c +++ b/arch/arm/common/pl330.c @@ -1211,8 +1211,8 @@ static inline u32 _prepare_ccr(const struct pl330_reqcfg *rqc) ccr |= (rqc->brst_size << CC_SRCBRSTSIZE_SHFT); ccr |= (rqc->brst_size << CC_DSTBRSTSIZE_SHFT); - ccr |= (rqc->dcctl << CC_SRCCCTRL_SHFT); - ccr |= (rqc->scctl << CC_DSTCCTRL_SHFT); + ccr |= (rqc->scctl << CC_SRCCCTRL_SHFT); + ccr |= (rqc->dcctl << CC_DSTCCTRL_SHFT); ccr |= (rqc->swap << CC_SWAP_SHFT); From 53cbcbcf4362ef39e0a692b1d23c395999397fca Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Thu, 17 Nov 2011 13:11:21 +0100 Subject: [PATCH 111/207] ARM: 7166/1: Use PMD_SHIFT instead of PGDIR_SHIFT in dma-consistent.c Commit 99d1717d (ARM: Add init_consistent_dma_size()) introduces dynamic allocation of the consistent_pte array. The number of PTEs should be calculated based on the number of PMD entries rather than PGD, hence the PMD_SHIFT. Signed-off-by: Catalin Marinas Cc: Jon Medhurst Acked-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/mm/dma-mapping.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index e4e7f6cba1ab..ab584569930e 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -168,7 +168,7 @@ static int __init consistent_init(void) pte_t *pte; int i = 0; unsigned long base = consistent_base; - unsigned long num_ptes = (CONSISTENT_END - base) >> PGDIR_SHIFT; + unsigned long num_ptes = (CONSISTENT_END - base) >> PMD_SHIFT; consistent_pte = kmalloc(num_ptes * sizeof(pte_t), GFP_KERNEL); if (!consistent_pte) { From ed3e80c4c991a52f9fce3421536a78e331ae0949 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 21 Nov 2011 11:55:41 +0000 Subject: [PATCH 112/207] ASoC: Ensure WM8731 register cache is synced when resuming from disabled Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- sound/soc/codecs/wm8731.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c index 7e5ec03f6f8d..a7c9ae17fc7e 100644 --- a/sound/soc/codecs/wm8731.c +++ b/sound/soc/codecs/wm8731.c @@ -453,6 +453,7 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec, snd_soc_write(codec, WM8731_PWR, 0xffff); regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); + codec->cache_sync = 1; break; } codec->dapm.bias_level = level; From 404ba2b8f611bea3228daf031f03901d0c34ecd7 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 21 Nov 2011 17:57:25 +0000 Subject: [PATCH 113/207] gpio: pca953x: Staticise pca953x_get_altdata() It's not used outside of the driver so doesn't need to be exported, and sparse notices this and complains about it. Signed-off-by: Mark Brown --- drivers/gpio/gpio-pca953x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 147df8ae79db..d3f3e8f54561 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -546,7 +546,7 @@ static void pca953x_irq_teardown(struct pca953x_chip *chip) * Translate OpenFirmware node properties into platform_data * WARNING: This is DEPRECATED and will be removed eventually! */ -void +static void pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert) { struct device_node *node; @@ -574,7 +574,7 @@ pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert) *invert = *val; } #else -void +static void pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert) { *gpio_base = -1; From 74a0efdef1df7f576116811234ebedd8a1255ebc Mon Sep 17 00:00:00 2001 From: "Manjunathappa, Prakash" Date: Tue, 15 Nov 2011 17:32:23 +0530 Subject: [PATCH 114/207] video:da8xx-fb: Disable and reset sequence on version2 of LCDC Patch follows the disable and software reset sequence specified in version2 to LCDC functional specification. Without this flicker is observed on re-enabling the LCDC. Signed-off-by: Manjunathappa, Prakash Signed-off-by: Florian Tobias Schandinat --- drivers/video/da8xx-fb.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c index 55f91d9ab00b..29577bf1f559 100644 --- a/drivers/video/da8xx-fb.c +++ b/drivers/video/da8xx-fb.c @@ -116,6 +116,7 @@ /* Clock registers available only on Version 2 */ #define LCD_CLK_ENABLE_REG 0x6c #define LCD_CLK_RESET_REG 0x70 +#define LCD_CLK_MAIN_RESET BIT(3) #define LCD_NUM_BUFFERS 2 @@ -244,6 +245,10 @@ static inline void lcd_enable_raster(void) { u32 reg; + /* Bring LCDC out of reset */ + if (lcd_revision == LCD_VERSION_2) + lcdc_write(0, LCD_CLK_RESET_REG); + reg = lcdc_read(LCD_RASTER_CTRL_REG); if (!(reg & LCD_RASTER_ENABLE)) lcdc_write(reg | LCD_RASTER_ENABLE, LCD_RASTER_CTRL_REG); @@ -257,6 +262,10 @@ static inline void lcd_disable_raster(void) reg = lcdc_read(LCD_RASTER_CTRL_REG); if (reg & LCD_RASTER_ENABLE) lcdc_write(reg & ~LCD_RASTER_ENABLE, LCD_RASTER_CTRL_REG); + + if (lcd_revision == LCD_VERSION_2) + /* Write 1 to reset LCDC */ + lcdc_write(LCD_CLK_MAIN_RESET, LCD_CLK_RESET_REG); } static void lcd_blit(int load_mode, struct da8xx_fb_par *par) @@ -584,8 +593,12 @@ static void lcd_reset(struct da8xx_fb_par *par) lcdc_write(0, LCD_DMA_CTRL_REG); lcdc_write(0, LCD_RASTER_CTRL_REG); - if (lcd_revision == LCD_VERSION_2) + if (lcd_revision == LCD_VERSION_2) { lcdc_write(0, LCD_INT_ENABLE_SET_REG); + /* Write 1 to reset */ + lcdc_write(LCD_CLK_MAIN_RESET, LCD_CLK_RESET_REG); + lcdc_write(0, LCD_CLK_RESET_REG); + } } static void lcd_calc_clk_divider(struct da8xx_fb_par *par) From a32839696a8eef813a1aff604fbad9a32dff6c95 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Mon, 21 Nov 2011 15:05:56 +0000 Subject: [PATCH 115/207] viafb: correct sync polarity for OLPC DCON While the OLPC display appears to be able to handle either positive or negative sync, the Display Controller only recognises positive sync. This brings viafb (for XO-1.5) in line with lxfb (for XO-1) and fixes a recent regression where the XO-1.5 DCON could no longer be frozen. Thanks to Florian Tobias Schandinat for helping identify the fix. Test case: from a vt, echo 1 > /sys/devices/platform/dcon/freeze should cause the current screen contents to freeze, rather than garbage being displayed. Signed-off-by: Daniel Drake Signed-off-by: Florian Tobias Schandinat Cc: stable@kernel.org --- drivers/video/via/share.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/via/share.h b/drivers/video/via/share.h index 69d882cbe709..c01c1c162726 100644 --- a/drivers/video/via/share.h +++ b/drivers/video/via/share.h @@ -559,8 +559,8 @@ #define M1200X720_R60_VSP POSITIVE /* 1200x900@60 Sync Polarity (DCON) */ -#define M1200X900_R60_HSP NEGATIVE -#define M1200X900_R60_VSP NEGATIVE +#define M1200X900_R60_HSP POSITIVE +#define M1200X900_R60_VSP POSITIVE /* 1280x600@60 Sync Polarity (GTF Mode) */ #define M1280x600_R60_HSP NEGATIVE From 05c7cc9ccab7d9229fdae68d7d6231edd2c93741 Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Mon, 21 Nov 2011 16:15:36 +0100 Subject: [PATCH 116/207] ALSA: hdspm - Fix PCI ID for PCIe RME MADI cards Commit c09403dcc5698abf214329fbbf3cf8dbb5558bea has introduced a regression: PCIe versions of RME MADI were no longer detected, because the MADIface ID (0xd5) was used instead of the correct 0xd2. This commit fixes the problem. Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai --- sound/pci/rme9652/hdspm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index e760adad9523..19ee2203cbb5 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -6518,7 +6518,7 @@ static int __devinit snd_hdspm_create(struct snd_card *card, hdspm->io_type = AES32; hdspm->card_name = "RME AES32"; hdspm->midiPorts = 2; - } else if ((hdspm->firmware_rev == 0xd5) || + } else if ((hdspm->firmware_rev == 0xd2) || ((hdspm->firmware_rev >= 0xc8) && (hdspm->firmware_rev <= 0xcf))) { hdspm->io_type = MADI; From e760b5260d39113794da17c64cbd6e6311155b66 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 21 Nov 2011 14:34:05 +0100 Subject: [PATCH 117/207] ARM: imx: drop 'ARCH_MX31' and 'ARCH_MX35' Commit 27ad4bf72a ("ARM: imx: move mx3 support to mach-imx") kept ARCH_MX31 and ARCH_MX35 'for compatibility'. Now that they aren't actually used anymore, they can be dropped entirely. Signed-off-by: Paul Bolle Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/Kconfig | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 5f7f9c2a34ae..c44aa974e79c 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -10,11 +10,6 @@ config HAVE_IMX_MMDC config HAVE_IMX_SRC bool -# -# ARCH_MX31 and ARCH_MX35 are left for compatibility -# Some usages assume that having one of them implies not having (e.g.) ARCH_MX2. -# To easily distinguish good and reviewed from unreviewed usages new (and IMHO -# more sensible) names are used: SOC_IMX31 and SOC_IMX35 config ARCH_MX1 bool @@ -27,12 +22,6 @@ config ARCH_MX25 config MACH_MX27 bool -config ARCH_MX31 - bool - -config ARCH_MX35 - bool - config SOC_IMX1 bool select ARCH_MX1 @@ -72,7 +61,6 @@ config SOC_IMX31 select CPU_V6 select IMX_HAVE_PLATFORM_MXC_RNGA select ARCH_MXC_AUDMUX_V2 - select ARCH_MX31 select MXC_AVIC select SMP_ON_UP if SMP @@ -82,7 +70,6 @@ config SOC_IMX35 select ARCH_MXC_IOMUX_V3 select ARCH_MXC_AUDMUX_V2 select HAVE_EPIT - select ARCH_MX35 select MXC_AVIC select SMP_ON_UP if SMP From adf792928d1c57f31b92b7908a5ba383e9f05373 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 22 Nov 2011 10:04:46 +0100 Subject: [PATCH 118/207] MAINTAINERS: Add missing directory arch/arm/mach-imx/ is part of the i.MX support. Add it. Signed-off-by: Sascha Hauer --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 071a99674347..c9ae02a522b8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -789,6 +789,7 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained T: git git://git.pengutronix.de/git/imx/linux-2.6.git F: arch/arm/mach-mx*/ +F: arch/arm/mach-imx/ F: arch/arm/plat-mxc/ ARM/FREESCALE IMX51 From ca06679d758933b726c2677b523a26bc581eadcf Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 21 Nov 2011 16:26:52 -0200 Subject: [PATCH 119/207] ARM: mx5: Fix checkpatch warnings in cpu-imx5.c Fix the following warnings reported by checkpatch: WARNING: Use #include instead of #19: FILE: arm/mach-imx/cpu-imx5.c:19: +#include WARNING: line over 80 characters #70: FILE: arm/mach-imx/cpu-imx5.c:70: + if (mx51_revision() < IMX_CHIP_REVISION_3_0 && (elf_hwcap & HWCAP_NEON)) { Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer --- arch/arm/mach-mx5/cpu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-mx5/cpu.c b/arch/arm/mach-mx5/cpu.c index 5c5328257dca..5e2e7a843860 100644 --- a/arch/arm/mach-mx5/cpu.c +++ b/arch/arm/mach-mx5/cpu.c @@ -16,7 +16,7 @@ #include #include #include -#include +#include static int mx5_cpu_rev = -1; @@ -67,7 +67,8 @@ static int __init mx51_neon_fixup(void) if (!cpu_is_mx51()) return 0; - if (mx51_revision() < IMX_CHIP_REVISION_3_0 && (elf_hwcap & HWCAP_NEON)) { + if (mx51_revision() < IMX_CHIP_REVISION_3_0 && + (elf_hwcap & HWCAP_NEON)) { elf_hwcap &= ~HWCAP_NEON; pr_info("Turning off NEON support, detected broken NEON implementation\n"); } From 87514fced7c347a7cdd8a7a346d935a168428ff7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 22 Nov 2011 10:07:26 +0100 Subject: [PATCH 120/207] ARM: imx/mm-imx3: conditionally compile i.MX31 and i.MX35 code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes building a kernel for only one of the two SOCs. Without this patch an i.MX31 only build fails with: arch/arm/mach-imx/built-in.o: In function `imx35_init_early': mach-bug.c:(.init.text+0x2c): undefined reference to `mxc_iomux_v3_init' arch/arm/mach-imx/built-in.o: In function `imx35_soc_init': mach-bug.c:(.init.text+0xe4): undefined reference to `mx35_revision' Signed-off-by: Uwe Kleine-König Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mm-imx3.c | 58 ++++++++++++++++++++----------------- 1 file changed, 31 insertions(+), 27 deletions(-) diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index 9f0e82ec3398..72613c4b0e72 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -108,6 +108,7 @@ void imx3_init_l2x0(void) l2x0_init(l2x0_base, 0x00030024, 0x00000000); } +#ifdef CONFIG_SOC_IMX31 static struct map_desc mx31_io_desc[] __initdata = { imx_map_entry(MX31, X_MEMC, MT_DEVICE), imx_map_entry(MX31, AVIC, MT_DEVICE_NONSHARED), @@ -126,19 +127,6 @@ void __init mx31_map_io(void) iotable_init(mx31_io_desc, ARRAY_SIZE(mx31_io_desc)); } -static struct map_desc mx35_io_desc[] __initdata = { - imx_map_entry(MX35, X_MEMC, MT_DEVICE), - imx_map_entry(MX35, AVIC, MT_DEVICE_NONSHARED), - imx_map_entry(MX35, AIPS1, MT_DEVICE_NONSHARED), - imx_map_entry(MX35, AIPS2, MT_DEVICE_NONSHARED), - imx_map_entry(MX35, SPBA0, MT_DEVICE_NONSHARED), -}; - -void __init mx35_map_io(void) -{ - iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc)); -} - void __init imx31_init_early(void) { mxc_set_cpu_type(MXC_CPU_MX31); @@ -147,25 +135,11 @@ void __init imx31_init_early(void) imx_ioremap = imx3_ioremap; } -void __init imx35_init_early(void) -{ - mxc_set_cpu_type(MXC_CPU_MX35); - mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR)); - mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR)); - imx_idle = imx3_idle; - imx_ioremap = imx3_ioremap; -} - void __init mx31_init_irq(void) { mxc_init_irq(MX31_IO_ADDRESS(MX31_AVIC_BASE_ADDR)); } -void __init mx35_init_irq(void) -{ - mxc_init_irq(MX35_IO_ADDRESS(MX35_AVIC_BASE_ADDR)); -} - static struct sdma_script_start_addrs imx31_to1_sdma_script __initdata = { .per_2_per_addr = 1677, }; @@ -199,6 +173,35 @@ void __init imx31_soc_init(void) imx_add_imx_sdma("imx31-sdma", MX31_SDMA_BASE_ADDR, MX31_INT_SDMA, &imx31_sdma_pdata); } +#endif /* ifdef CONFIG_SOC_IMX31 */ + +#ifdef CONFIG_SOC_IMX35 +static struct map_desc mx35_io_desc[] __initdata = { + imx_map_entry(MX35, X_MEMC, MT_DEVICE), + imx_map_entry(MX35, AVIC, MT_DEVICE_NONSHARED), + imx_map_entry(MX35, AIPS1, MT_DEVICE_NONSHARED), + imx_map_entry(MX35, AIPS2, MT_DEVICE_NONSHARED), + imx_map_entry(MX35, SPBA0, MT_DEVICE_NONSHARED), +}; + +void __init mx35_map_io(void) +{ + iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc)); +} + +void __init imx35_init_early(void) +{ + mxc_set_cpu_type(MXC_CPU_MX35); + mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR)); + mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR)); + imx_idle = imx3_idle; + imx_ioremap = imx3_ioremap; +} + +void __init mx35_init_irq(void) +{ + mxc_init_irq(MX35_IO_ADDRESS(MX35_AVIC_BASE_ADDR)); +} static struct sdma_script_start_addrs imx35_to1_sdma_script __initdata = { .ap_2_ap_addr = 642, @@ -254,3 +257,4 @@ void __init imx35_soc_init(void) imx_add_imx_sdma("imx35-sdma", MX35_SDMA_BASE_ADDR, MX35_INT_SDMA, &imx35_sdma_pdata); } +#endif /* ifdef CONFIG_SOC_IMX35 */ From 807dfe7041fb1ff2b076b999800553440e61234d Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sat, 8 Oct 2011 17:16:49 +0200 Subject: [PATCH 121/207] ARM: imx: export imx_ioremap The arch_ioremap function on i.MX is now an indirect function pointer. In order to use it from any loadable module, the pointer itself has to be exported. ERROR: "imx_ioremap" [drivers/video/tmiofb.ko] undefined! ERROR: "imx_ioremap" [drivers/usb/host/sl811-hcd.ko] undefined! ERROR: "imx_ioremap" [drivers/usb/host/r8a66597-hcd.ko] undefined! ERROR: "imx_ioremap" [drivers/usb/host/oxu210hp-hcd.ko] undefined! ERROR: "imx_ioremap" [drivers/usb/gadget/r8a66597-udc.ko] undefined! Signed-off-by: Arnd Bergmann Acked-by: Shawn Guo Signed-off-by: Sascha Hauer --- arch/arm/plat-mxc/system.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/plat-mxc/system.c b/arch/arm/plat-mxc/system.c index 9dad8dcc2ea9..45e1b5f6be44 100644 --- a/arch/arm/plat-mxc/system.c +++ b/arch/arm/plat-mxc/system.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include @@ -30,6 +31,7 @@ void (*imx_idle)(void) = NULL; void __iomem *(*imx_ioremap)(unsigned long, size_t, unsigned int) = NULL; +EXPORT_SYMBOL_GPL(imx_ioremap); static void __iomem *wdog_base; From c6e8453e7511001e453f8b20b9ceefd231946867 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Fri, 18 Nov 2011 16:59:32 -0600 Subject: [PATCH 122/207] ALSA: hda - repoll ELD content for multiple times Improve the one-shot ELD repoll to up to 6 retries. Up to now the 300ms looks sufficient for the test boxes. However I'm a bit worried about how well it can fit the wider user base. Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_hdmi.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 9850c5b481ea..c505fd5d338c 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -69,6 +69,7 @@ struct hdmi_spec_per_pin { struct hda_codec *codec; struct hdmi_eld sink_eld; struct delayed_work work; + int repoll_count; }; struct hdmi_spec { @@ -748,7 +749,7 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, int pin_idx, * Unsolicited events */ -static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, bool retry); +static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll); static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res) { @@ -766,7 +767,7 @@ static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res) if (pin_idx < 0) return; - hdmi_present_sense(&spec->pins[pin_idx], true); + hdmi_present_sense(&spec->pins[pin_idx], 1); } static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res) @@ -960,7 +961,7 @@ static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx) return 0; } -static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, bool retry) +static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll) { struct hda_codec *codec = per_pin->codec; struct hdmi_eld *eld = &per_pin->sink_eld; @@ -989,7 +990,7 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, bool retry) if (eld_valid) { if (!snd_hdmi_get_eld(eld, codec, pin_nid)) snd_hdmi_show_eld(eld); - else if (retry) { + else if (repoll) { queue_delayed_work(codec->bus->workq, &per_pin->work, msecs_to_jiffies(300)); @@ -1004,7 +1005,10 @@ static void hdmi_repoll_eld(struct work_struct *work) struct hdmi_spec_per_pin *per_pin = container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work); - hdmi_present_sense(per_pin, false); + if (per_pin->repoll_count++ > 6) + per_pin->repoll_count = 0; + + hdmi_present_sense(per_pin, per_pin->repoll_count); } static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid) @@ -1235,7 +1239,7 @@ static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx) if (err < 0) return err; - hdmi_present_sense(per_pin, false); + hdmi_present_sense(per_pin, 0); return 0; } From afd00d7235c1989d06d75cf8ac3d7722fcf2f394 Mon Sep 17 00:00:00 2001 From: Tim Blechmann Date: Tue, 22 Nov 2011 11:15:44 +0100 Subject: [PATCH 123/207] ALSA: lx6464es - command buffer API cleanup the command buffer is only accessed from one file, so we can declare the specific functions as static in that file Signed-off-by: Tim Blechmann Signed-off-by: Takashi Iwai --- sound/pci/lx6464es/lx_core.c | 7 ++++--- sound/pci/lx6464es/lx_core.h | 3 --- 2 files changed, 4 insertions(+), 6 deletions(-) diff --git a/sound/pci/lx6464es/lx_core.c b/sound/pci/lx6464es/lx_core.c index 5c8717e29eeb..ad52f4187e40 100644 --- a/sound/pci/lx6464es/lx_core.c +++ b/sound/pci/lx6464es/lx_core.c @@ -78,7 +78,8 @@ unsigned long lx_dsp_reg_read(struct lx6464es *chip, int port) return ioread32(address); } -void lx_dsp_reg_readbuf(struct lx6464es *chip, int port, u32 *data, u32 len) +static void lx_dsp_reg_readbuf(struct lx6464es *chip, int port, u32 *data, + u32 len) { void __iomem *address = lx_dsp_register(chip, port); memcpy_fromio(data, address, len*sizeof(u32)); @@ -91,8 +92,8 @@ void lx_dsp_reg_write(struct lx6464es *chip, int port, unsigned data) iowrite32(data, address); } -void lx_dsp_reg_writebuf(struct lx6464es *chip, int port, const u32 *data, - u32 len) +static void lx_dsp_reg_writebuf(struct lx6464es *chip, int port, + const u32 *data, u32 len) { void __iomem *address = lx_dsp_register(chip, port); memcpy_toio(address, data, len*sizeof(u32)); diff --git a/sound/pci/lx6464es/lx_core.h b/sound/pci/lx6464es/lx_core.h index 1dd562980b6c..4d7ff797a646 100644 --- a/sound/pci/lx6464es/lx_core.h +++ b/sound/pci/lx6464es/lx_core.h @@ -72,10 +72,7 @@ enum { }; unsigned long lx_dsp_reg_read(struct lx6464es *chip, int port); -void lx_dsp_reg_readbuf(struct lx6464es *chip, int port, u32 *data, u32 len); void lx_dsp_reg_write(struct lx6464es *chip, int port, unsigned data); -void lx_dsp_reg_writebuf(struct lx6464es *chip, int port, const u32 *data, - u32 len); /* plx register access */ enum { From a29878553a9a7b4c06f93c7e383527cf014d4ceb Mon Sep 17 00:00:00 2001 From: Tim Blechmann Date: Tue, 22 Nov 2011 11:15:45 +0100 Subject: [PATCH 124/207] ALSA: lx6464es - fix device communication via command bus commit 6175ddf06b6172046a329e3abfd9c901a43efd2e optimized the mem*io functions that have been used to send commands to the device. these optimizations somehow corrupted the communication with the lx6464es, that resulted the device to be unusable with kernels after 2.6.33. this patch emulates the memcpy_*_io functions via a loop to avoid these problems. Signed-off-by: Tim Blechmann LKML-Reference: <4ECB5257.4040600@ladisch.de> Cc: Signed-off-by: Takashi Iwai --- sound/pci/lx6464es/lx_core.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/sound/pci/lx6464es/lx_core.c b/sound/pci/lx6464es/lx_core.c index ad52f4187e40..8c3e7fcefd99 100644 --- a/sound/pci/lx6464es/lx_core.c +++ b/sound/pci/lx6464es/lx_core.c @@ -81,8 +81,12 @@ unsigned long lx_dsp_reg_read(struct lx6464es *chip, int port) static void lx_dsp_reg_readbuf(struct lx6464es *chip, int port, u32 *data, u32 len) { - void __iomem *address = lx_dsp_register(chip, port); - memcpy_fromio(data, address, len*sizeof(u32)); + u32 __iomem *address = lx_dsp_register(chip, port); + int i; + + /* we cannot use memcpy_fromio */ + for (i = 0; i != len; ++i) + data[i] = ioread32(address + i); } @@ -95,8 +99,12 @@ void lx_dsp_reg_write(struct lx6464es *chip, int port, unsigned data) static void lx_dsp_reg_writebuf(struct lx6464es *chip, int port, const u32 *data, u32 len) { - void __iomem *address = lx_dsp_register(chip, port); - memcpy_toio(address, data, len*sizeof(u32)); + u32 __iomem *address = lx_dsp_register(chip, port); + int i; + + /* we cannot use memcpy_to */ + for (i = 0; i != len; ++i) + iowrite32(data[i], address + i); } From a370fc62b9ad3f73abe2a721de6c03cdcce95b54 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Tue, 22 Nov 2011 16:46:23 +0800 Subject: [PATCH 125/207] ALSA: hda - fail ELD reading early With the ELD repoll mechanism, we can (and should) fail the ELD reading immediately when find something obviously wrong and let the caller retry after some delay. Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_eld.c | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-) diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 7ae7578bdcc0..c1da422e085a 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -347,18 +347,28 @@ int snd_hdmi_get_eld(struct hdmi_eld *eld, for (i = 0; i < size; i++) { unsigned int val = hdmi_get_eld_data(codec, nid, i); + /* + * Graphics driver might be writing to ELD buffer right now. + * Just abort. The caller will repoll after a while. + */ if (!(val & AC_ELDD_ELD_VALID)) { - if (!i) { - snd_printd(KERN_INFO - "HDMI: invalid ELD data\n"); - ret = -EINVAL; - goto error; - } snd_printd(KERN_INFO "HDMI: invalid ELD data byte %d\n", i); - val = 0; - } else - val &= AC_ELDD_ELD_DATA; + ret = -EINVAL; + goto error; + } + val &= AC_ELDD_ELD_DATA; + /* + * The first byte cannot be zero. This can happen on some DVI + * connections. Some Intel chips may also need some 250ms delay + * to return non-zero ELD data, even when the graphics driver + * correctly writes ELD content before setting ELD_valid bit. + */ + if (!val && !i) { + snd_printdd(KERN_INFO "HDMI: 0 ELD data\n"); + ret = -EINVAL; + goto error; + } buf[i] = val; } From 90459ce06f410b983540be56209c0abcbce23944 Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Thu, 4 Aug 2011 11:02:33 +0200 Subject: [PATCH 126/207] percpu: rename pcpu_mem_alloc to pcpu_mem_zalloc Currently pcpu_mem_alloc() is implemented always return zeroed memory. So rename it to make user like pcpu_get_pages_and_bitmap() know don't reinit it. Signed-off-by: Bob Liu Reviewed-by: Pekka Enberg Reviewed-by: Michal Hocko Signed-off-by: Tejun Heo --- mm/percpu-vm.c | 5 ++--- mm/percpu.c | 17 +++++++++-------- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/mm/percpu-vm.c b/mm/percpu-vm.c index ea534960a04b..29e3730d2ffd 100644 --- a/mm/percpu-vm.c +++ b/mm/percpu-vm.c @@ -50,14 +50,13 @@ static struct page **pcpu_get_pages_and_bitmap(struct pcpu_chunk *chunk, if (!pages || !bitmap) { if (may_alloc && !pages) - pages = pcpu_mem_alloc(pages_size); + pages = pcpu_mem_zalloc(pages_size); if (may_alloc && !bitmap) - bitmap = pcpu_mem_alloc(bitmap_size); + bitmap = pcpu_mem_zalloc(bitmap_size); if (!pages || !bitmap) return NULL; } - memset(pages, 0, pages_size); bitmap_copy(bitmap, chunk->populated, pcpu_unit_pages); *bitmapp = bitmap; diff --git a/mm/percpu.c b/mm/percpu.c index bf80e55dbed7..28c37a2e2de2 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -273,11 +273,11 @@ static void __maybe_unused pcpu_next_pop(struct pcpu_chunk *chunk, (rs) = (re) + 1, pcpu_next_pop((chunk), &(rs), &(re), (end))) /** - * pcpu_mem_alloc - allocate memory + * pcpu_mem_zalloc - allocate memory * @size: bytes to allocate * * Allocate @size bytes. If @size is smaller than PAGE_SIZE, - * kzalloc() is used; otherwise, vmalloc() is used. The returned + * kzalloc() is used; otherwise, vzalloc() is used. The returned * memory is always zeroed. * * CONTEXT: @@ -286,7 +286,7 @@ static void __maybe_unused pcpu_next_pop(struct pcpu_chunk *chunk, * RETURNS: * Pointer to the allocated area on success, NULL on failure. */ -static void *pcpu_mem_alloc(size_t size) +static void *pcpu_mem_zalloc(size_t size) { if (WARN_ON_ONCE(!slab_is_available())) return NULL; @@ -302,7 +302,7 @@ static void *pcpu_mem_alloc(size_t size) * @ptr: memory to free * @size: size of the area * - * Free @ptr. @ptr should have been allocated using pcpu_mem_alloc(). + * Free @ptr. @ptr should have been allocated using pcpu_mem_zalloc(). */ static void pcpu_mem_free(void *ptr, size_t size) { @@ -384,7 +384,7 @@ static int pcpu_extend_area_map(struct pcpu_chunk *chunk, int new_alloc) size_t old_size = 0, new_size = new_alloc * sizeof(new[0]); unsigned long flags; - new = pcpu_mem_alloc(new_size); + new = pcpu_mem_zalloc(new_size); if (!new) return -ENOMEM; @@ -604,11 +604,12 @@ static struct pcpu_chunk *pcpu_alloc_chunk(void) { struct pcpu_chunk *chunk; - chunk = pcpu_mem_alloc(pcpu_chunk_struct_size); + chunk = pcpu_mem_zalloc(pcpu_chunk_struct_size); if (!chunk) return NULL; - chunk->map = pcpu_mem_alloc(PCPU_DFL_MAP_ALLOC * sizeof(chunk->map[0])); + chunk->map = pcpu_mem_zalloc(PCPU_DFL_MAP_ALLOC * + sizeof(chunk->map[0])); if (!chunk->map) { kfree(chunk); return NULL; @@ -1889,7 +1890,7 @@ void __init percpu_init_late(void) BUILD_BUG_ON(size > PAGE_SIZE); - map = pcpu_mem_alloc(size); + map = pcpu_mem_zalloc(size); BUG_ON(!map); spin_lock_irqsave(&pcpu_lock, flags); From a855b84c3d8c73220d4d3cd392a7bee7c83de70e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 18 Nov 2011 10:55:35 -0800 Subject: [PATCH 127/207] percpu: fix chunk range calculation Percpu allocator recorded the cpus which map to the first and last units in pcpu_first/last_unit_cpu respectively and used them to determine the address range of a chunk - e.g. it assumed that the first unit has the lowest address in a chunk while the last unit has the highest address. This simply isn't true. Groups in a chunk can have arbitrary positive or negative offsets from the previous one and there is no guarantee that the first unit occupies the lowest offset while the last one the highest. Fix it by actually comparing unit offsets to determine cpus occupying the lowest and highest offsets. Also, rename pcu_first/last_unit_cpu to pcpu_low/high_unit_cpu to avoid confusion. The chunk address range is used to flush cache on vmalloc area map/unmap and decide whether a given address is in the first chunk by per_cpu_ptr_to_phys() and the bug was discovered by invalid per_cpu_ptr_to_phys() translation for crash_note. Kudos to Dave Young for tracking down the problem. Signed-off-by: Tejun Heo Reported-by: WANG Cong Reported-by: Dave Young Tested-by: Dave Young LKML-Reference: <4EC21F67.10905@redhat.com> Cc: stable @kernel.org --- mm/percpu-vm.c | 12 ++++++------ mm/percpu.c | 34 ++++++++++++++++++++-------------- 2 files changed, 26 insertions(+), 20 deletions(-) diff --git a/mm/percpu-vm.c b/mm/percpu-vm.c index 29e3730d2ffd..12a48a88c0d8 100644 --- a/mm/percpu-vm.c +++ b/mm/percpu-vm.c @@ -142,8 +142,8 @@ static void pcpu_pre_unmap_flush(struct pcpu_chunk *chunk, int page_start, int page_end) { flush_cache_vunmap( - pcpu_chunk_addr(chunk, pcpu_first_unit_cpu, page_start), - pcpu_chunk_addr(chunk, pcpu_last_unit_cpu, page_end)); + pcpu_chunk_addr(chunk, pcpu_low_unit_cpu, page_start), + pcpu_chunk_addr(chunk, pcpu_high_unit_cpu, page_end)); } static void __pcpu_unmap_pages(unsigned long addr, int nr_pages) @@ -205,8 +205,8 @@ static void pcpu_post_unmap_tlb_flush(struct pcpu_chunk *chunk, int page_start, int page_end) { flush_tlb_kernel_range( - pcpu_chunk_addr(chunk, pcpu_first_unit_cpu, page_start), - pcpu_chunk_addr(chunk, pcpu_last_unit_cpu, page_end)); + pcpu_chunk_addr(chunk, pcpu_low_unit_cpu, page_start), + pcpu_chunk_addr(chunk, pcpu_high_unit_cpu, page_end)); } static int __pcpu_map_pages(unsigned long addr, struct page **pages, @@ -283,8 +283,8 @@ static void pcpu_post_map_flush(struct pcpu_chunk *chunk, int page_start, int page_end) { flush_cache_vmap( - pcpu_chunk_addr(chunk, pcpu_first_unit_cpu, page_start), - pcpu_chunk_addr(chunk, pcpu_last_unit_cpu, page_end)); + pcpu_chunk_addr(chunk, pcpu_low_unit_cpu, page_start), + pcpu_chunk_addr(chunk, pcpu_high_unit_cpu, page_end)); } /** diff --git a/mm/percpu.c b/mm/percpu.c index 28c37a2e2de2..2473ff06dc76 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -116,9 +116,9 @@ static int pcpu_atom_size __read_mostly; static int pcpu_nr_slots __read_mostly; static size_t pcpu_chunk_struct_size __read_mostly; -/* cpus with the lowest and highest unit numbers */ -static unsigned int pcpu_first_unit_cpu __read_mostly; -static unsigned int pcpu_last_unit_cpu __read_mostly; +/* cpus with the lowest and highest unit addresses */ +static unsigned int pcpu_low_unit_cpu __read_mostly; +static unsigned int pcpu_high_unit_cpu __read_mostly; /* the address of the first chunk which starts with the kernel static area */ void *pcpu_base_addr __read_mostly; @@ -985,19 +985,19 @@ phys_addr_t per_cpu_ptr_to_phys(void *addr) { void __percpu *base = __addr_to_pcpu_ptr(pcpu_base_addr); bool in_first_chunk = false; - unsigned long first_start, first_end; + unsigned long first_low, first_high; unsigned int cpu; /* - * The following test on first_start/end isn't strictly + * The following test on unit_low/high isn't strictly * necessary but will speed up lookups of addresses which * aren't in the first chunk. */ - first_start = pcpu_chunk_addr(pcpu_first_chunk, pcpu_first_unit_cpu, 0); - first_end = pcpu_chunk_addr(pcpu_first_chunk, pcpu_last_unit_cpu, - pcpu_unit_pages); - if ((unsigned long)addr >= first_start && - (unsigned long)addr < first_end) { + first_low = pcpu_chunk_addr(pcpu_first_chunk, pcpu_low_unit_cpu, 0); + first_high = pcpu_chunk_addr(pcpu_first_chunk, pcpu_high_unit_cpu, + pcpu_unit_pages); + if ((unsigned long)addr >= first_low && + (unsigned long)addr < first_high) { for_each_possible_cpu(cpu) { void *start = per_cpu_ptr(base, cpu); @@ -1234,7 +1234,9 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, for (cpu = 0; cpu < nr_cpu_ids; cpu++) unit_map[cpu] = UINT_MAX; - pcpu_first_unit_cpu = NR_CPUS; + + pcpu_low_unit_cpu = NR_CPUS; + pcpu_high_unit_cpu = NR_CPUS; for (group = 0, unit = 0; group < ai->nr_groups; group++, unit += i) { const struct pcpu_group_info *gi = &ai->groups[group]; @@ -1254,9 +1256,13 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, unit_map[cpu] = unit + i; unit_off[cpu] = gi->base_offset + i * ai->unit_size; - if (pcpu_first_unit_cpu == NR_CPUS) - pcpu_first_unit_cpu = cpu; - pcpu_last_unit_cpu = cpu; + /* determine low/high unit_cpu */ + if (pcpu_low_unit_cpu == NR_CPUS || + unit_off[cpu] < unit_off[pcpu_low_unit_cpu]) + pcpu_low_unit_cpu = cpu; + if (pcpu_high_unit_cpu == NR_CPUS || + unit_off[cpu] > unit_off[pcpu_high_unit_cpu]) + pcpu_high_unit_cpu = cpu; } } pcpu_nr_units = unit; From e5a21327644adba32816f74a415114d11c57f2e9 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 22 Nov 2011 18:01:46 +0000 Subject: [PATCH 128/207] ARM: perf: check that we have a platform device when reserving PMU Attempting to use a hardware counter on a platform with a supported PMU but where the platform_device (defining the interrupts) has not been registered results in a NULL pointer dereference. This patch fixes the problem by checking that we actually have a platform device registered before attempting to grab the interrupts. Reported-by: Pawel Moll Signed-off-by: Will Deacon --- arch/arm/kernel/perf_event.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index e508066d3d64..c475379199b1 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -402,6 +402,9 @@ armpmu_reserve_hardware(struct arm_pmu *armpmu) int i, err, irq, irqs; struct platform_device *pmu_device = armpmu->plat_device; + if (!pmu_device) + return -ENODEV; + err = reserve_pmu(armpmu->type); if (err) { pr_warning("unable to reserve pmu\n"); From 24ca9a847791fd53d9b217330b15f3c285827a18 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 22 Nov 2011 14:44:28 +0200 Subject: [PATCH 129/207] SUNRPC: Ensure we return EAGAIN in xs_nospace if congestion is cleared By returning '0' instead of 'EAGAIN' when the tests in xs_nospace() fail to find evidence of socket congestion, we are making the RPC engine believe that the message was incorrectly sent and so it disconnects the socket instead of just retrying. The bug appears to have been introduced by commit 5e3771ce2d6a69e10fcc870cdf226d121d868491 (SUNRPC: Ensure that xs_nospace return values are propagated). Reported-by: Andrew Cooper Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org [>= 2.6.30] Tested-by: Andrew Cooper --- net/sunrpc/xprtsock.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 2d78d95955ab..55472c48825e 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -496,7 +496,7 @@ static int xs_nospace(struct rpc_task *task) struct rpc_rqst *req = task->tk_rqstp; struct rpc_xprt *xprt = req->rq_xprt; struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); - int ret = 0; + int ret = -EAGAIN; dprintk("RPC: %5u xmit incomplete (%u left of %u)\n", task->tk_pid, req->rq_slen - req->rq_bytes_sent, @@ -508,7 +508,6 @@ static int xs_nospace(struct rpc_task *task) /* Don't race with disconnect */ if (xprt_connected(xprt)) { if (test_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags)) { - ret = -EAGAIN; /* * Notify TCP that we're limited by the application * window size From e2301a4de22c438f5a962c7cefc3e9cba736991c Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 22 Nov 2011 19:58:56 +0100 Subject: [PATCH 130/207] ALSA: hda - Check subdevice mask in snd_hda_check_board_codec_sid_config() In snd_hda_check_board_codec_sid_config(), not only comparing with the exact value but allow the bit-mask comparison for vendor-only, etc. Tested-by: Linus Torvalds Tested-by: Dirk Hohndel Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index e44b107fdc75..4562e9de6a1a 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -4046,9 +4046,9 @@ int snd_hda_check_board_codec_sid_config(struct hda_codec *codec, /* Search for codec ID */ for (q = tbl; q->subvendor; q++) { - unsigned long vendorid = (q->subdevice) | (q->subvendor << 16); - - if (vendorid == codec->subsystem_id) + unsigned int mask = 0xffff0000 | q->subdevice_mask; + unsigned int id = (q->subdevice | (q->subvendor << 16)) & mask; + if ((codec->subsystem_id & mask) == id) break; } From 6dfeb703e386369d9f1585d29482efe7b2b4401d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 22 Nov 2011 20:00:31 +0100 Subject: [PATCH 131/207] ALSA: hda - Fix invalid pin and GPIO for Apple laptops with CS codecs The PCI SSID 8086:7270 is commonly used for multiple Apple machines, thus we can't use it as identifier for a unique model. Because of this conflict, some machines show weird behavior. For example, MacBook Air shows Front and Surround speakers although only Surround works due to the wrongly overridden pin-configuration for imac27. This patch fixes two things: - Stop the wrong pin-config override of imac27 by removing PCI SSID entry for avoiding the wrong mappings, - Add the generic GPIO setup for Apple machines by checking the codec SSID vendor bits Tested-by: Linus Torvalds Tested-by: Dirk Hohndel Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_cirrus.c | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-) diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c index 2fbab8e29576..7bd2a52f2bac 100644 --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -58,6 +58,8 @@ struct cs_spec { unsigned int gpio_mask; unsigned int gpio_dir; unsigned int gpio_data; + unsigned int gpio_eapd_hp; /* EAPD GPIO bit for headphones */ + unsigned int gpio_eapd_speaker; /* EAPD GPIO bit for speakers */ struct hda_pcm pcm_rec[2]; /* PCM information */ @@ -76,6 +78,7 @@ enum { CS420X_MBP53, CS420X_MBP55, CS420X_IMAC27, + CS420X_APPLE, CS420X_AUTO, CS420X_MODELS }; @@ -928,10 +931,9 @@ static void cs_automute(struct hda_codec *codec) spdif_present ? 0 : PIN_OUT); } } - if (spec->board_config == CS420X_MBP53 || - spec->board_config == CS420X_MBP55 || - spec->board_config == CS420X_IMAC27) { - unsigned int gpio = hp_present ? 0x02 : 0x08; + if (spec->gpio_eapd_hp) { + unsigned int gpio = hp_present ? + spec->gpio_eapd_hp : spec->gpio_eapd_speaker; snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DATA, gpio); } @@ -1276,6 +1278,7 @@ static const char * const cs420x_models[CS420X_MODELS] = { [CS420X_MBP53] = "mbp53", [CS420X_MBP55] = "mbp55", [CS420X_IMAC27] = "imac27", + [CS420X_IMAC27] = "apple", [CS420X_AUTO] = "auto", }; @@ -1285,7 +1288,13 @@ static const struct snd_pci_quirk cs420x_cfg_tbl[] = { SND_PCI_QUIRK(0x10de, 0x0d94, "MacBookAir 3,1(2)", CS420X_MBP55), SND_PCI_QUIRK(0x10de, 0xcb79, "MacBookPro 5,5", CS420X_MBP55), SND_PCI_QUIRK(0x10de, 0xcb89, "MacBookPro 7,1", CS420X_MBP55), - SND_PCI_QUIRK(0x8086, 0x7270, "IMac 27 Inch", CS420X_IMAC27), + /* this conflicts with too many other models */ + /*SND_PCI_QUIRK(0x8086, 0x7270, "IMac 27 Inch", CS420X_IMAC27),*/ + {} /* terminator */ +}; + +static const struct snd_pci_quirk cs420x_codec_cfg_tbl[] = { + SND_PCI_QUIRK_VENDOR(0x106b, "Apple", CS420X_APPLE), {} /* terminator */ }; @@ -1367,6 +1376,10 @@ static int patch_cs420x(struct hda_codec *codec) spec->board_config = snd_hda_check_board_config(codec, CS420X_MODELS, cs420x_models, cs420x_cfg_tbl); + if (spec->board_config < 0) + spec->board_config = + snd_hda_check_board_codec_sid_config(codec, + CS420X_MODELS, NULL, cs420x_codec_cfg_tbl); if (spec->board_config >= 0) fix_pincfg(codec, spec->board_config, cs_pincfgs); @@ -1374,10 +1387,11 @@ static int patch_cs420x(struct hda_codec *codec) case CS420X_IMAC27: case CS420X_MBP53: case CS420X_MBP55: - /* GPIO1 = headphones */ - /* GPIO3 = speakers */ - spec->gpio_mask = 0x0a; - spec->gpio_dir = 0x0a; + case CS420X_APPLE: + spec->gpio_eapd_hp = 2; /* GPIO1 = headphones */ + spec->gpio_eapd_speaker = 8; /* GPIO3 = speakers */ + spec->gpio_mask = spec->gpio_dir = + spec->gpio_eapd_hp | spec->gpio_eapd_speaker; break; } From 6759dc323826c2c806c998cd93945c5476688dd2 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 23 Nov 2011 07:38:59 +0100 Subject: [PATCH 132/207] ALSA: hda/realtek - Fix missing inits of item indices for auto-mic When the imux entries are rebuilt in alc_rebuild_imux_for_auto_mic(), the initialization of index field is missing. It may work without it casually when the original imux was created by the auto-parser, but it's definitely broken in the case of static configs where no imux was parsed beforehand. Because of this, the auto-mic switching doesn't work properly on some model options. This patch adds the missing initialization of index field. Reported-by: Dmitry Nezhevenko Cc: [v3.1] Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 336d14eb72af..06c0c12d4fec 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1054,8 +1054,20 @@ static bool alc_rebuild_imux_for_auto_mic(struct hda_codec *codec) spec->imux_pins[2] = spec->dock_mic_pin; for (i = 0; i < 3; i++) { strcpy(imux->items[i].label, texts[i]); - if (spec->imux_pins[i]) + if (spec->imux_pins[i]) { + hda_nid_t pin = spec->imux_pins[i]; + int c; + for (c = 0; c < spec->num_adc_nids; c++) { + hda_nid_t cap = spec->capsrc_nids ? + spec->capsrc_nids[c] : spec->adc_nids[c]; + int idx = get_connection_index(codec, cap, pin); + if (idx >= 0) { + imux->items[i].index = idx; + break; + } + } imux->num_items = i + 1; + } } spec->num_mux_defs = 1; spec->input_mux = imux; From 61071594f64ed12328046f94716d1d744bddc0a1 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 23 Nov 2011 07:52:15 +0100 Subject: [PATCH 133/207] ALSA: hda/realtek - Minor cleanup Use an inline function for the common pattern for assigning a capsrc. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 06c0c12d4fec..cbde019d3d52 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -277,6 +277,12 @@ static bool alc_dyn_adc_pcm_resetup(struct hda_codec *codec, int cur) return false; } +static inline hda_nid_t get_capsrc(struct alc_spec *spec, int idx) +{ + return spec->capsrc_nids ? + spec->capsrc_nids[idx] : spec->adc_nids[idx]; +} + /* select the given imux item; either unmute exclusively or select the route */ static int alc_mux_select(struct hda_codec *codec, unsigned int adc_idx, unsigned int idx, bool force) @@ -303,8 +309,7 @@ static int alc_mux_select(struct hda_codec *codec, unsigned int adc_idx, adc_idx = spec->dyn_adc_idx[idx]; } - nid = spec->capsrc_nids ? - spec->capsrc_nids[adc_idx] : spec->adc_nids[adc_idx]; + nid = get_capsrc(spec, adc_idx); /* no selection? */ num_conns = snd_hda_get_conn_list(codec, nid, NULL); @@ -1058,8 +1063,7 @@ static bool alc_rebuild_imux_for_auto_mic(struct hda_codec *codec) hda_nid_t pin = spec->imux_pins[i]; int c; for (c = 0; c < spec->num_adc_nids; c++) { - hda_nid_t cap = spec->capsrc_nids ? - spec->capsrc_nids[c] : spec->adc_nids[c]; + hda_nid_t cap = get_capsrc(spec, c); int idx = get_connection_index(codec, cap, pin); if (idx >= 0) { imux->items[i].index = idx; @@ -1969,10 +1973,8 @@ static int alc_build_controls(struct hda_codec *codec) if (!kctl) kctl = snd_hda_find_mixer_ctl(codec, "Input Source"); for (i = 0; kctl && i < kctl->count; i++) { - const hda_nid_t *nids = spec->capsrc_nids; - if (!nids) - nids = spec->adc_nids; - err = snd_hda_add_nid(codec, kctl, i, nids[i]); + err = snd_hda_add_nid(codec, kctl, i, + get_capsrc(spec, i)); if (err < 0) return err; } @@ -2759,8 +2761,7 @@ static int alc_auto_create_input_ctls(struct hda_codec *codec) } for (c = 0; c < num_adcs; c++) { - hda_nid_t cap = spec->capsrc_nids ? - spec->capsrc_nids[c] : spec->adc_nids[c]; + hda_nid_t cap = get_capsrc(spec, c); idx = get_connection_index(codec, cap, pin); if (idx >= 0) { spec->imux_pins[imux->num_items] = pin; @@ -3706,8 +3707,7 @@ static int init_capsrc_for_pin(struct hda_codec *codec, hda_nid_t pin) if (!pin) return 0; for (i = 0; i < spec->num_adc_nids; i++) { - hda_nid_t cap = spec->capsrc_nids ? - spec->capsrc_nids[i] : spec->adc_nids[i]; + hda_nid_t cap = get_capsrc(spec, i); int idx; idx = get_connection_index(codec, cap, pin); From 67589c71456b0346500629967292dea3802230b6 Mon Sep 17 00:00:00 2001 From: Dave Young Date: Wed, 23 Nov 2011 08:20:53 -0800 Subject: [PATCH 134/207] percpu: explain why per_cpu_ptr_to_phys() is more complicated than necessary Add comments about current per_cpu_ptr_to_phys implementation to explain why the logic is more complicated than necessary. -tj: relocated comment into kerneldoc comment Signed-off-by: Dave Young Signed-off-by: Tejun Heo --- mm/percpu.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/mm/percpu.c b/mm/percpu.c index 2473ff06dc76..3bb810a72006 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -978,6 +978,17 @@ bool is_kernel_percpu_address(unsigned long addr) * address. The caller is responsible for ensuring @addr stays valid * until this function finishes. * + * percpu allocator has special setup for the first chunk, which currently + * supports either embedding in linear address space or vmalloc mapping, + * and, from the second one, the backing allocator (currently either vm or + * km) provides translation. + * + * The addr can be tranlated simply without checking if it falls into the + * first chunk. But the current code reflects better how percpu allocator + * actually works, and the verification can discover both bugs in percpu + * allocator itself and per_cpu_ptr_to_phys() callers. So we keep current + * code. + * * RETURNS: * The physical address for @addr. */ From c2735391fbc68feae10d6d14e60956c8106e725f Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sat, 10 Sep 2011 12:26:07 +0200 Subject: [PATCH 135/207] arm: mx28: fix bit operation in clock setting reg | (1 << clk->enable_shift) always evaluates to true. Switch it to & which makes much more sense. Same fix as 13be9f00 (ARM i.MX28: fix bit operation) at a different location. Signed-off-by: Wolfram Sang Cc: Sascha Hauer Cc: Shawn Guo Signed-off-by: Shawn Guo Cc: stable@kernel.org Signed-off-by: Arnd Bergmann --- arch/arm/mach-mxs/clock-mx28.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c index 229ae3494216..da6e4aad177c 100644 --- a/arch/arm/mach-mxs/clock-mx28.c +++ b/arch/arm/mach-mxs/clock-mx28.c @@ -404,7 +404,7 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_##dr); \ reg &= ~BM_CLKCTRL_##dr##_DIV; \ reg |= div << BP_CLKCTRL_##dr##_DIV; \ - if (reg | (1 << clk->enable_shift)) { \ + if (reg & (1 << clk->enable_shift)) { \ pr_err("%s: clock is gated\n", __func__); \ return -EINVAL; \ } \ From bb58dd5d1ffad6c2d21c69698ba766dad4ae54e6 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 22 Nov 2011 23:08:10 +0100 Subject: [PATCH 136/207] PM / Hibernate: Do not leak memory in error/test code paths The hibernation core code forgets to release memory preallocated for hibernation if there's an error in its early stages or if test modes causing hibernation_snapshot() to return early are used. This causes the system to be hardly usable, because the amount of preallocated memory is usually huge. Fix this problem. Reported-by: Srivatsa S. Bhat Signed-off-by: Rafael J. Wysocki Acked-by: Srivatsa S. Bhat --- kernel/power/hibernate.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 196c01268ebd..a6b0503574ee 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -347,7 +347,7 @@ int hibernation_snapshot(int platform_mode) error = freeze_kernel_threads(); if (error) - goto Close; + goto Cleanup; if (hibernation_test(TEST_FREEZER) || hibernation_testmode(HIBERNATION_TESTPROC)) { @@ -357,12 +357,14 @@ int hibernation_snapshot(int platform_mode) * successful freezer test. */ freezer_test_done = true; - goto Close; + goto Cleanup; } error = dpm_prepare(PMSG_FREEZE); - if (error) - goto Complete_devices; + if (error) { + dpm_complete(msg); + goto Cleanup; + } suspend_console(); pm_restrict_gfp_mask(); @@ -391,8 +393,6 @@ int hibernation_snapshot(int platform_mode) pm_restore_gfp_mask(); resume_console(); - - Complete_devices: dpm_complete(msg); Close: @@ -402,6 +402,10 @@ int hibernation_snapshot(int platform_mode) Recover_platform: platform_recover(platform_mode); goto Resume_devices; + + Cleanup: + swsusp_free(); + goto Close; } /** From cc1b0765da6078b906772b79ff211b88cc0ae958 Mon Sep 17 00:00:00 2001 From: sricharan Date: Wed, 23 Nov 2011 14:35:07 -0800 Subject: [PATCH 137/207] ARM: OMAP: hwmod: Fix the addr space, irq, dma count APIs The address spaces, irqs and dma reqs count APIs return the number of corresponding entries in a hwmod including a additional null value or a -1 terminator in the structure introduced recently. More information here: - 212738a4: omap_hwmod: use a terminator record with omap_hwmod_mpu_irqs arrays - 78183f3f: omap_hwmod: use a null structure record to terminate omap_hwmod_addr_space arrays - bc614958: omap_hwmod: use a terminator record with omap_hwmod_dma_info arrays The issue with irqs and dma info was originally reported by Benoit Cousson. The devices which have multiple hwmods and use device_build_ss are broken with this, as their resources are populated with a extra null value, subsequently the probe fails. So fix the API not to include the array terminator in the count. Reported-by: Benoit Cousson Signed-off-by: Santosh Shilimkar Signed-off-by: sricharan Signed-off-by: Benoit Cousson Cc: Paul Walmsley Cc: stable@vger.kernel.org Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap_hwmod.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 6b3088db83b7..207a2ff9a8c4 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -749,7 +749,7 @@ static int _count_mpu_irqs(struct omap_hwmod *oh) ohii = &oh->mpu_irqs[i++]; } while (ohii->irq != -1); - return i; + return i-1; } /** @@ -772,7 +772,7 @@ static int _count_sdma_reqs(struct omap_hwmod *oh) ohdi = &oh->sdma_reqs[i++]; } while (ohdi->dma_req != -1); - return i; + return i-1; } /** @@ -795,7 +795,7 @@ static int _count_ocp_if_addr_spaces(struct omap_hwmod_ocp_if *os) mem = &os->addr[i++]; } while (mem->pa_start != mem->pa_end); - return i; + return i-1; } /** From 46232a3622c6e33605906ee6690dfef372925f53 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 23 Nov 2011 14:43:01 -0800 Subject: [PATCH 138/207] ARM: OMAP: PM: only register TWL with voltage layer when device is present Current code registers voltage layer details for TWL PMIC even when a TWL has not been registered. Fix this to only register the TWL with voltage layer when the TWL PMIC is initialized by board-level code. Signed-off-by: Kevin Hilman Cc: stable@vger.kernel.org Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/pm.c | 6 ++---- arch/arm/mach-omap2/twl-common.c | 11 +++++++++++ arch/arm/mach-omap2/twl-common.h | 3 +++ 3 files changed, 16 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c index 1e79bdf313e3..00bff46ca48b 100644 --- a/arch/arm/mach-omap2/pm.c +++ b/arch/arm/mach-omap2/pm.c @@ -24,6 +24,7 @@ #include "powerdomain.h" #include "clockdomain.h" #include "pm.h" +#include "twl-common.h" static struct omap_device_pm_latency *pm_lats; @@ -226,11 +227,8 @@ postcore_initcall(omap2_common_pm_init); static int __init omap2_common_pm_late_init(void) { - /* Init the OMAP TWL parameters */ - omap3_twl_init(); - omap4_twl_init(); - /* Init the voltage layer */ + omap_pmic_late_init(); omap_voltage_late_init(); /* Initialize the voltages */ diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c index 522435772168..10b20c652e5d 100644 --- a/arch/arm/mach-omap2/twl-common.c +++ b/arch/arm/mach-omap2/twl-common.c @@ -30,6 +30,7 @@ #include #include "twl-common.h" +#include "pm.h" static struct i2c_board_info __initdata pmic_i2c_board_info = { .addr = 0x48, @@ -48,6 +49,16 @@ void __init omap_pmic_init(int bus, u32 clkrate, omap_register_i2c_bus(bus, clkrate, &pmic_i2c_board_info, 1); } +void __init omap_pmic_late_init(void) +{ + /* Init the OMAP TWL parameters (if PMIC has been registerd) */ + if (!pmic_i2c_board_info.irq) + return; + + omap3_twl_init(); + omap4_twl_init(); +} + #if defined(CONFIG_ARCH_OMAP3) static struct twl4030_usb_data omap3_usb_pdata = { .usb_mode = T2_USB_MODE_ULPI, diff --git a/arch/arm/mach-omap2/twl-common.h b/arch/arm/mach-omap2/twl-common.h index 5e83a5bd37fb..275dde8cb27a 100644 --- a/arch/arm/mach-omap2/twl-common.h +++ b/arch/arm/mach-omap2/twl-common.h @@ -1,6 +1,8 @@ #ifndef __OMAP_PMIC_COMMON__ #define __OMAP_PMIC_COMMON__ +#include + #define TWL_COMMON_PDATA_USB (1 << 0) #define TWL_COMMON_PDATA_BCI (1 << 1) #define TWL_COMMON_PDATA_MADC (1 << 2) @@ -30,6 +32,7 @@ struct twl4030_platform_data; void omap_pmic_init(int bus, u32 clkrate, const char *pmic_type, int pmic_irq, struct twl4030_platform_data *pmic_data); +void omap_pmic_late_init(void); static inline void omap2_pmic_init(const char *pmic_type, struct twl4030_platform_data *pmic_data) From 5a4f1844c2ba21f804d7729306d9b16eaeb724a8 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 23 Nov 2011 14:43:37 -0800 Subject: [PATCH 139/207] ARM: OMAP: smartreflex: fix IRQ handling bug Fix a bug which has been on this driver since it was added by the original commit 984aa6db which would never clear IRQSTATUS bits. Signed-off-by: Felipe Balbi Signed-off-by: Kevin Hilman Cc: stable@vger.kernel.org Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/smartreflex.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c index 6a4f6839a7d9..cf246b39bac7 100644 --- a/arch/arm/mach-omap2/smartreflex.c +++ b/arch/arm/mach-omap2/smartreflex.c @@ -139,7 +139,7 @@ static irqreturn_t sr_interrupt(int irq, void *data) sr_write_reg(sr_info, ERRCONFIG_V1, status); } else if (sr_info->ip_type == SR_TYPE_V2) { /* Read the status bits */ - sr_read_reg(sr_info, IRQSTATUS); + status = sr_read_reg(sr_info, IRQSTATUS); /* Clear them by writing back */ sr_write_reg(sr_info, IRQSTATUS, status); From a8a6565c7615cab3608d75af95b5c8a3522cd7c4 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Wed, 23 Nov 2011 14:44:50 -0800 Subject: [PATCH 140/207] ARM: OMAP2: select ARM_AMBA if OMAP3_EMU is defined This patch selects ARM_AMBA if OMAP3_EMU is defined because OC_ETM depends on ARM_AMBA, so fix the link failure[1]. [1], arch/arm/kernel/built-in.o: In function `etm_remove': /home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:609: undefined reference to `amba_release_regions' arch/arm/kernel/built-in.o: In function `etb_remove': /home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:409: undefined reference to `amba_release_regions' arch/arm/kernel/built-in.o: In function `etm_init': /home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:640: undefined reference to `amba_driver_register' /home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:646: undefined reference to `amba_driver_register' /home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:648: undefined reference to `amba_driver_unregister' arch/arm/kernel/built-in.o: In function `etm_probe': /home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:545: undefined reference to `amba_request_regions' /home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:595: undefined reference to `amba_release_regions' arch/arm/kernel/built-in.o: In function `etb_probe': /home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:347: undefined reference to `amba_request_regions' /home/tom/git/omap/linux-2.6-omap/arch/arm/kernel/etm.c:392: undefined reference to `amba_release_regions' arch/arm/mach-omap2/built-in.o: In function `emu_init': /home/tom/git/omap/linux-2.6-omap/arch/arm/mach-omap2/emu.c:62: undefined reference to `amba_device_register' /home/tom/git/omap/linux-2.6-omap/arch/arm/mach-omap2/emu.c:63: undefined reference to `amba_device_register' make: *** [.tmp_vmlinux1] Error 1 making modules Signed-off-by: Ming Lei Cc: stable@vger.kernel.org Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 503414718905..e1293aa513d3 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -334,6 +334,7 @@ config MACH_OMAP4_PANDA config OMAP3_EMU bool "OMAP3 debugging peripherals" depends on ARCH_OMAP3 + select ARM_AMBA select OC_ETM help Say Y here to enable debugging hardware of omap3 From 52a2396249478018ea2e83d962a347d38d8cccbe Mon Sep 17 00:00:00 2001 From: Thomas Weber Date: Wed, 23 Nov 2011 14:45:22 -0800 Subject: [PATCH 141/207] ARM: OMAP2+: Remove empty io.h The file arch/arm/mach-omap2/io.h is empty, so we can remove it. Signed-off-by: Thomas Weber Acked-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/io.h | 0 1 file changed, 0 insertions(+), 0 deletions(-) delete mode 100644 arch/arm/mach-omap2/io.h diff --git a/arch/arm/mach-omap2/io.h b/arch/arm/mach-omap2/io.h deleted file mode 100644 index e69de29bb2d1..000000000000 From 8770b07c2dff3cec2c751b289ee690137c88ea54 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Wed, 23 Nov 2011 14:45:37 -0800 Subject: [PATCH 142/207] ARM: OMAP2+: Fix Compilation error when omap_l3_noc built as module Fix below compilation failure on mainline kernel 3.2-rc1 when omap_l3_noc.c is built as module. arch/arm/mach-omap2/omap_l3_noc.c:240: error: expected ',' or ';' before 'MODULE_DEVICE_TABLE' Signed-off-by: Govindraj.R Acked-by: Santosh Shilimkar Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap_l3_noc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap_l3_noc.c b/arch/arm/mach-omap2/omap_l3_noc.c index 6a66aa5e2a5b..d15225ff5c49 100644 --- a/arch/arm/mach-omap2/omap_l3_noc.c +++ b/arch/arm/mach-omap2/omap_l3_noc.c @@ -237,7 +237,7 @@ static int __devexit omap4_l3_remove(struct platform_device *pdev) static const struct of_device_id l3_noc_match[] = { {.compatible = "ti,omap4-l3-noc", }, {}, -} +}; MODULE_DEVICE_TABLE(of, l3_noc_match); #else #define l3_noc_match NULL From c3c3ced77fd1949af753be7731bfdadae88a226b Mon Sep 17 00:00:00 2001 From: Roy Zang Date: Mon, 7 Nov 2011 16:32:58 +0800 Subject: [PATCH 143/207] powerpc/p1023: set IRQ[4:6,11] to active-high level sensitive for PCIe P1023 external IRQ[4:6, 11] are not pin out, but the interrupts are utilized by the PCIe controllers. As they are not exposed as pins we need to set them as active-high (internal to the SoC these interrupts are pulled down). IRQs[0:3,7:10] are pulled up on the board so we have them set as active-low. Signed-off-by: Roy Zang Signed-off-by: Kumar Gala --- arch/powerpc/boot/dts/p1023rds.dts | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/boot/dts/p1023rds.dts b/arch/powerpc/boot/dts/p1023rds.dts index d9b776740a67..d3b478242ea9 100644 --- a/arch/powerpc/boot/dts/p1023rds.dts +++ b/arch/powerpc/boot/dts/p1023rds.dts @@ -449,6 +449,7 @@ pcie@0 { interrupt-parent = <&mpic>; interrupts = <16 2>; interrupt-map-mask = <0xf800 0 0 7>; + /* IRQ[0:3] are pulled up on board, set to active-low */ interrupt-map = < /* IDSEL 0x0 */ 0000 0 0 1 &mpic 0 1 @@ -488,11 +489,15 @@ pcie@0 { interrupt-parent = <&mpic>; interrupts = <16 2>; interrupt-map-mask = <0xf800 0 0 7>; + /* + * IRQ[4:6] only for PCIe, set to active-high, + * IRQ[7] is pulled up on board, set to active-low + */ interrupt-map = < /* IDSEL 0x0 */ - 0000 0 0 1 &mpic 4 1 - 0000 0 0 2 &mpic 5 1 - 0000 0 0 3 &mpic 6 1 + 0000 0 0 1 &mpic 4 2 + 0000 0 0 2 &mpic 5 2 + 0000 0 0 3 &mpic 6 2 0000 0 0 4 &mpic 7 1 >; ranges = <0x2000000 0x0 0xa0000000 @@ -527,12 +532,16 @@ pcie@0 { interrupt-parent = <&mpic>; interrupts = <16 2>; interrupt-map-mask = <0xf800 0 0 7>; + /* + * IRQ[8:10] are pulled up on board, set to active-low + * IRQ[11] only for PCIe, set to active-high, + */ interrupt-map = < /* IDSEL 0x0 */ 0000 0 0 1 &mpic 8 1 0000 0 0 2 &mpic 9 1 0000 0 0 3 &mpic 10 1 - 0000 0 0 4 &mpic 11 1 + 0000 0 0 4 &mpic 11 2 >; ranges = <0x2000000 0x0 0x80000000 0x2000000 0x0 0x80000000 From a92282524aee149de0014eef10a0771d1d19821f Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Sun, 13 Nov 2011 00:50:30 +0100 Subject: [PATCH 144/207] powerpc/p3060qds: Fix select of 'MPC8xxx_GPIO' The driver for the Freescale P3060 QDS got added by commit 96cc017c5b ("[...] Add support for P3060QDS board"). Its Kconfig entry selects MPC8xxx_GPIO. But at the time that driver got added MPC8xxx_GPIO was already renamed to GPIO_MPC8XXX, by commit c68308dd50c ("gpio: move mpc8xxx/512x gpio driver to drivers/gpio"). So make this driver select GPIO_MPC8XXX. Signed-off-by: Paul Bolle Acked-by: Wolfram Sang Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 45023e26aea3..d7946be298b6 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -203,7 +203,7 @@ config P3060_QDS select PPC_E500MC select PHYS_64BIT select SWIOTLB - select MPC8xxx_GPIO + select GPIO_MPC8XXX select HAS_RAPIDIO select PPC_EPAPR_HV_PIC help From 05011f370a4f549da69f3841e319043728f65542 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sun, 20 Nov 2011 09:58:11 -0600 Subject: [PATCH 145/207] powerpc/85xx: Fix compile error on p3060_qds.c arch/powerpc/platforms/85xx/p3060_qds.c: In function '__machine_initcall_p3060_qds_declare_of_platform_devices': arch/powerpc/platforms/85xx/p3060_qds.c:73:1: error: implicit declaration of function 'declare_of_platform_devices' declare_of_platform_devices should have been corenet_ds_publish_devices. Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/p3060_qds.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/85xx/p3060_qds.c b/arch/powerpc/platforms/85xx/p3060_qds.c index 01dcf44871e9..081cf4ac1881 100644 --- a/arch/powerpc/platforms/85xx/p3060_qds.c +++ b/arch/powerpc/platforms/85xx/p3060_qds.c @@ -70,7 +70,7 @@ define_machine(p3060_qds) { .power_save = e500_idle, }; -machine_device_initcall(p3060_qds, declare_of_platform_devices); +machine_device_initcall(p3060_qds, corenet_ds_publish_devices); #ifdef CONFIG_SWIOTLB machine_arch_initcall(p3060_qds, swiotlb_setup_bus_notifier); From 42d623a8cd08eb93ab221d22cee5a62618895bbf Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 23 Nov 2011 09:14:38 -0600 Subject: [PATCH 146/207] slub: use irqsafe_cpu_cmpxchg for put_cpu_partial The cmpxchg must be irq safe. The fallback for this_cpu_cmpxchg only disables preemption which results in per cpu partial page operation potentially failing on non x86 platforms. This patch fixes the following problem reported by Christian Kujau: I seem to hit it with heavy disk & cpu IO is in progress on this PowerBook G4. Full dmesg & .config: http://nerdbynature.de/bits/3.2.0-rc1/oops/ I've enabled some debug options and now it really points to slub.c:2166 http://nerdbynature.de/bits/3.2.0-rc1/oops/oops4m.jpg With debug options enabled I'm currently in the xmon debugger, not sure what to make of it yet, I'll try to get something useful out of it :) Reported-by: Christian Kujau Tested-by: Christian Kujau Acked-by: Eric Dumazet Acked-by: David Rientjes Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- mm/slub.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index 00efbb56a268..2a9cfd72a3d7 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1978,7 +1978,7 @@ int put_cpu_partial(struct kmem_cache *s, struct page *page, int drain) page->pobjects = pobjects; page->next = oldpage; - } while (this_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage); + } while (irqsafe_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage); stat(s, CPU_PARTIAL_FREE); return pobjects; } From bc6697d8a506dedf09e8e9974ffa3a316183e608 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 22 Nov 2011 16:02:02 +0100 Subject: [PATCH 147/207] slub: avoid potential NULL dereference or corruption show_slab_objects() can trigger NULL dereferences or memory corruption. Another cpu can change its c->page to NULL or c->node to NUMA_NO_NODE while we use them. Use ACCESS_ONCE(c->page) and ACCESS_ONCE(c->node) to make sure this cannot happen. Acked-by: Christoph Lameter Acked-by: David Rientjes Signed-off-by: Eric Dumazet Signed-off-by: Pekka Enberg --- mm/slub.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 2a9cfd72a3d7..ed3334d9b6da 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -4444,30 +4444,31 @@ static ssize_t show_slab_objects(struct kmem_cache *s, for_each_possible_cpu(cpu) { struct kmem_cache_cpu *c = per_cpu_ptr(s->cpu_slab, cpu); + int node = ACCESS_ONCE(c->node); struct page *page; - if (!c || c->node < 0) + if (node < 0) continue; - - if (c->page) { - if (flags & SO_TOTAL) - x = c->page->objects; + page = ACCESS_ONCE(c->page); + if (page) { + if (flags & SO_TOTAL) + x = page->objects; else if (flags & SO_OBJECTS) - x = c->page->inuse; + x = page->inuse; else x = 1; total += x; - nodes[c->node] += x; + nodes[node] += x; } page = c->partial; if (page) { x = page->pobjects; - total += x; - nodes[c->node] += x; + total += x; + nodes[node] += x; } - per_cpu[c->node]++; + per_cpu[node]++; } } From ae5f8c19827493e5a8d48c2c6a8a92201a94f08b Mon Sep 17 00:00:00 2001 From: Joakim Tjernlund Date: Tue, 23 Aug 2011 14:30:05 +0200 Subject: [PATCH 148/207] powerpc/qe: Fixup QE_General4 errata QE_General4 should only round up the divisor iff divisor is > 3. Rounding up lower divisors makes the error too big, causing USB on MPC832x to fail. Signed-off-by: Joakim Tjernlund Acked-by: Timur Tabi Signed-off-by: Kumar Gala --- arch/powerpc/sysdev/qe_lib/qe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index 3363fbc964f8..ceb09cbd2329 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -216,7 +216,7 @@ int qe_setbrg(enum qe_clock brg, unsigned int rate, unsigned int multiplier) /* Errata QE_General4, which affects some MPC832x and MPC836x SOCs, says that the BRG divisor must be even if you're not using divide-by-16 mode. */ - if (!div16 && (divisor & 1)) + if (!div16 && (divisor & 1) && (divisor > 3)) divisor++; tempval = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) | From 86f9a4330580b4ed3d5f7d5b0989ae69518c90f5 Mon Sep 17 00:00:00 2001 From: Shaohui Xie Date: Tue, 15 Nov 2011 14:52:22 -0800 Subject: [PATCH 149/207] drivers/edac/mpc85xx_edac.c: fix memory controller compatible for edac compatible in dts has been changed, so the driver needs to be updated accordingly. Signed-off-by: Shaohui Xie Cc: Grant Likely Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Kumar Gala --- drivers/edac/mpc85xx_edac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c index 8af8e864a9cf..73464a62adf7 100644 --- a/drivers/edac/mpc85xx_edac.c +++ b/drivers/edac/mpc85xx_edac.c @@ -1128,7 +1128,7 @@ static struct of_device_id mpc85xx_mc_err_of_match[] = { { .compatible = "fsl,p1020-memory-controller", }, { .compatible = "fsl,p1021-memory-controller", }, { .compatible = "fsl,p2020-memory-controller", }, - { .compatible = "fsl,p4080-memory-controller", }, + { .compatible = "fsl,qoriq-memory-controller", }, {}, }; MODULE_DEVICE_TABLE(of, mpc85xx_mc_err_of_match); From 7145cf12095265b8a292835d0f6da87f89fac1d1 Mon Sep 17 00:00:00 2001 From: Alexandre Rusev Date: Thu, 27 Oct 2011 18:18:37 +0400 Subject: [PATCH 150/207] powerpc/fsl-lbc: Fix for fsl_upm If Freescale LBC driver fails to initialise itself from device tree, then internal structure is freed only but not NULL-fied. As result functions fsl_lbc_find() after checking the structure is not NULL are trying to access device registers. Signed-off-by: Alexandre Rusev Signed-off-by: Kumar Gala --- arch/powerpc/sysdev/fsl_lbc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/sysdev/fsl_lbc.c b/arch/powerpc/sysdev/fsl_lbc.c index c4d96fa32ba5..d5c3c90ee698 100644 --- a/arch/powerpc/sysdev/fsl_lbc.c +++ b/arch/powerpc/sysdev/fsl_lbc.c @@ -328,6 +328,7 @@ static int __devinit fsl_lbc_ctrl_probe(struct platform_device *dev) err: iounmap(fsl_lbc_ctrl_dev->regs); kfree(fsl_lbc_ctrl_dev); + fsl_lbc_ctrl_dev = NULL; return ret; } From e3854b6e25d1b092c30c5f81a04fe6fc839b1e26 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 8 Aug 2011 13:18:02 +0200 Subject: [PATCH 151/207] arch/powerpc/sysdev/ehv_pic.c: add missing kfree At this point, ehv_pic has been allocated but not stored anywhere, so it should be freed before leaving the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @exists@ local idexpression x; statement S,S1; expression E; identifier fl; expression *ptr != NULL; @@ x = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...kfree(x)...+> } when any when != true x == NULL x->fl ...> ( if (x == NULL) S1 | if (...) { ... when != x when forall ( return \(0\|<+...x...+>\|ptr\); | * return ...; ) } ) // Signed-off-by: Julia Lawall Acked-by: Timur Tabi Signed-off-by: Kumar Gala --- arch/powerpc/sysdev/ehv_pic.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/sysdev/ehv_pic.c b/arch/powerpc/sysdev/ehv_pic.c index af1a5df46b3e..b6731e4a6646 100644 --- a/arch/powerpc/sysdev/ehv_pic.c +++ b/arch/powerpc/sysdev/ehv_pic.c @@ -280,6 +280,7 @@ void __init ehv_pic_init(void) if (!ehv_pic->irqhost) { of_node_put(np); + kfree(ehv_pic); return; } From 85d096db6764fd89cea232cf64b65a5f3b0f1ffc Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Sun, 16 Oct 2011 00:07:20 +0800 Subject: [PATCH 152/207] ARM: at91: rename defconfig files appropriately rename all Atmel reference board as soc defconfig Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Cc: Nicolas Ferre Signed-off-by: Arnd Bergmann --- arch/arm/configs/{at91cap9adk_defconfig => at91cap9_defconfig} | 0 .../configs/{at91sam9260ek_defconfig => at91sam9260_defconfig} | 0 .../configs/{at91sam9g20ek_defconfig => at91sam9g20_defconfig} | 0 arch/arm/configs/{at91sam9rlek_defconfig => at91sam9rl_defconfig} | 0 4 files changed, 0 insertions(+), 0 deletions(-) rename arch/arm/configs/{at91cap9adk_defconfig => at91cap9_defconfig} (100%) rename arch/arm/configs/{at91sam9260ek_defconfig => at91sam9260_defconfig} (100%) rename arch/arm/configs/{at91sam9g20ek_defconfig => at91sam9g20_defconfig} (100%) rename arch/arm/configs/{at91sam9rlek_defconfig => at91sam9rl_defconfig} (100%) diff --git a/arch/arm/configs/at91cap9adk_defconfig b/arch/arm/configs/at91cap9_defconfig similarity index 100% rename from arch/arm/configs/at91cap9adk_defconfig rename to arch/arm/configs/at91cap9_defconfig diff --git a/arch/arm/configs/at91sam9260ek_defconfig b/arch/arm/configs/at91sam9260_defconfig similarity index 100% rename from arch/arm/configs/at91sam9260ek_defconfig rename to arch/arm/configs/at91sam9260_defconfig diff --git a/arch/arm/configs/at91sam9g20ek_defconfig b/arch/arm/configs/at91sam9g20_defconfig similarity index 100% rename from arch/arm/configs/at91sam9g20ek_defconfig rename to arch/arm/configs/at91sam9g20_defconfig diff --git a/arch/arm/configs/at91sam9rlek_defconfig b/arch/arm/configs/at91sam9rl_defconfig similarity index 100% rename from arch/arm/configs/at91sam9rlek_defconfig rename to arch/arm/configs/at91sam9rl_defconfig From 9f939adeb2d0bcc079a8b2684761b34709d65407 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Sun, 16 Oct 2011 00:07:20 +0800 Subject: [PATCH 153/207] ARM: at91: refresh soc defconfig files for 3.2 Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Cc: Nicolas Ferre Signed-off-by: Arnd Bergmann --- arch/arm/configs/at91cap9_defconfig | 7 ---- arch/arm/configs/at91rm9200_defconfig | 47 ++++++++------------------ arch/arm/configs/at91sam9260_defconfig | 4 --- arch/arm/configs/at91sam9g20_defconfig | 12 +------ arch/arm/configs/at91sam9g45_defconfig | 6 +--- arch/arm/configs/at91sam9rl_defconfig | 5 --- 6 files changed, 16 insertions(+), 65 deletions(-) diff --git a/arch/arm/configs/at91cap9_defconfig b/arch/arm/configs/at91cap9_defconfig index ffb1edd93363..8826eb218e73 100644 --- a/arch/arm/configs/at91cap9_defconfig +++ b/arch/arm/configs/at91cap9_defconfig @@ -38,7 +38,6 @@ CONFIG_IP_PNP_RARP=y # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y @@ -52,16 +51,12 @@ CONFIG_MTD_NAND_ATMEL=y CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=8192 -CONFIG_ATMEL_SSC=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_SCSI_MULTI_LUN=y CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y CONFIG_MII=y CONFIG_MACB=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set # CONFIG_INPUT_MOUSEDEV_PSAUX is not set CONFIG_INPUT_EVDEV=y # CONFIG_INPUT_KEYBOARD is not set @@ -81,7 +76,6 @@ CONFIG_WATCHDOG=y CONFIG_WATCHDOG_NOWAYOUT=y CONFIG_FB=y CONFIG_FB_ATMEL=y -# CONFIG_VGA_CONSOLE is not set CONFIG_LOGO=y # CONFIG_LOGO_LINUX_MONO is not set # CONFIG_LOGO_LINUX_CLUT224 is not set @@ -99,7 +93,6 @@ CONFIG_MMC_AT91=m CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_AT91SAM9=y CONFIG_EXT2_FS=y -CONFIG_INOTIFY=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/arm/configs/at91rm9200_defconfig b/arch/arm/configs/at91rm9200_defconfig index 38cb7c985426..bbe4e1a1f5d8 100644 --- a/arch/arm/configs/at91rm9200_defconfig +++ b/arch/arm/configs/at91rm9200_defconfig @@ -5,7 +5,6 @@ CONFIG_SYSVIPC=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=14 -CONFIG_SYSFS_DEPRECATED_V2=y CONFIG_BLK_DEV_INITRD=y CONFIG_MODULES=y CONFIG_MODULE_FORCE_LOAD=y @@ -56,7 +55,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_NET_IPIP=m -CONFIG_NET_IPGRE=m CONFIG_INET_AH=m CONFIG_INET_ESP=m CONFIG_INET_IPCOMP=m @@ -75,18 +73,8 @@ CONFIG_IPV6_TUNNEL=m CONFIG_BRIDGE=m CONFIG_VLAN_8021Q=m CONFIG_BT=m -CONFIG_BT_L2CAP=m -CONFIG_BT_SCO=m -CONFIG_BT_RFCOMM=m -CONFIG_BT_RFCOMM_TTY=y -CONFIG_BT_BNEP=m -CONFIG_BT_BNEP_MC_FILTER=y -CONFIG_BT_BNEP_PROTO_FILTER=y -CONFIG_BT_HIDP=m CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_MTD=y -CONFIG_MTD_CONCAT=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_AFS_PARTS=y CONFIG_MTD_CHAR=y @@ -108,8 +96,6 @@ CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_NBD=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=8192 -CONFIG_ATMEL_TCLIB=y -CONFIG_EEPROM_LEGACY=m CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_BLK_DEV_SR=m @@ -119,14 +105,23 @@ CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_LOWLEVEL is not set CONFIG_NETDEVICES=y CONFIG_TUN=m +CONFIG_ARM_AT91_ETHER=y CONFIG_PHYLIB=y CONFIG_DAVICOM_PHY=y CONFIG_SMSC_PHY=y CONFIG_MICREL_PHY=y -CONFIG_NET_ETHERNET=y -CONFIG_ARM_AT91_ETHER=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set +CONFIG_PPP=y +CONFIG_PPP_BSDCOMP=y +CONFIG_PPP_DEFLATE=y +CONFIG_PPP_FILTER=y +CONFIG_PPP_MPPE=m +CONFIG_PPP_MULTILINK=y +CONFIG_PPPOE=m +CONFIG_PPP_ASYNC=y +CONFIG_SLIP=m +CONFIG_SLIP_COMPRESSED=y +CONFIG_SLIP_SMART=y +CONFIG_SLIP_MODE_SLIP6=y CONFIG_USB_CATC=m CONFIG_USB_KAWETH=m CONFIG_USB_PEGASUS=m @@ -139,18 +134,6 @@ CONFIG_USB_NET_RNDIS_HOST=m CONFIG_USB_ALI_M5632=y CONFIG_USB_AN2720=y CONFIG_USB_EPSON2888=y -CONFIG_PPP=y -CONFIG_PPP_MULTILINK=y -CONFIG_PPP_FILTER=y -CONFIG_PPP_ASYNC=y -CONFIG_PPP_DEFLATE=y -CONFIG_PPP_BSDCOMP=y -CONFIG_PPP_MPPE=m -CONFIG_PPPOE=m -CONFIG_SLIP=m -CONFIG_SLIP_COMPRESSED=y -CONFIG_SLIP_SMART=y -CONFIG_SLIP_MODE_SLIP6=y # CONFIG_INPUT_MOUSEDEV_PSAUX is not set CONFIG_INPUT_MOUSEDEV_SCREEN_X=640 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=480 @@ -158,9 +141,9 @@ CONFIG_INPUT_EVDEV=y CONFIG_KEYBOARD_GPIO=y # CONFIG_INPUT_MOUSE is not set CONFIG_INPUT_TOUCHSCREEN=y +CONFIG_LEGACY_PTY_COUNT=32 CONFIG_SERIAL_ATMEL=y CONFIG_SERIAL_ATMEL_CONSOLE=y -CONFIG_LEGACY_PTY_COUNT=32 CONFIG_HW_RANDOM=y CONFIG_I2C=y CONFIG_I2C_CHARDEV=y @@ -290,7 +273,6 @@ CONFIG_NFS_V3_ACL=y CONFIG_NFS_V4=y CONFIG_ROOT_NFS=y CONFIG_NFSD=y -CONFIG_SMB_FS=m CONFIG_CIFS=m CONFIG_PARTITION_ADVANCED=y CONFIG_MAC_PARTITION=y @@ -335,7 +317,6 @@ CONFIG_NLS_UTF8=y CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_FS=y CONFIG_DEBUG_KERNEL=y -# CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_FTRACE is not set CONFIG_CRYPTO_PCBC=y CONFIG_CRYPTO_SHA1=y diff --git a/arch/arm/configs/at91sam9260_defconfig b/arch/arm/configs/at91sam9260_defconfig index f8a9226413bf..8a4c22d7be61 100644 --- a/arch/arm/configs/at91sam9260_defconfig +++ b/arch/arm/configs/at91sam9260_defconfig @@ -33,12 +33,10 @@ CONFIG_IP_PNP_BOOTP=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=8192 -CONFIG_ATMEL_SSC=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_SCSI_MULTI_LUN=y CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y CONFIG_MII=y CONFIG_MACB=y # CONFIG_INPUT_MOUSEDEV_PSAUX is not set @@ -55,7 +53,6 @@ CONFIG_I2C_GPIO=y CONFIG_WATCHDOG=y CONFIG_WATCHDOG_NOWAYOUT=y CONFIG_AT91SAM9X_WATCHDOG=y -# CONFIG_VGA_CONSOLE is not set # CONFIG_USB_HID is not set CONFIG_USB=y CONFIG_USB_DEVICEFS=y @@ -71,7 +68,6 @@ CONFIG_USB_G_SERIAL=m CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_AT91SAM9=y CONFIG_EXT2_FS=y -CONFIG_INOTIFY=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y CONFIG_CRAMFS=y diff --git a/arch/arm/configs/at91sam9g20_defconfig b/arch/arm/configs/at91sam9g20_defconfig index 9e90e6d79297..23966c699065 100644 --- a/arch/arm/configs/at91sam9g20_defconfig +++ b/arch/arm/configs/at91sam9g20_defconfig @@ -23,7 +23,6 @@ CONFIG_ZBOOT_ROM_TEXT=0x0 CONFIG_ZBOOT_ROM_BSS=0x0 CONFIG_CMDLINE="mem=64M console=ttyS0,115200 initrd=0x21100000,3145728 root=/dev/ram0 rw" CONFIG_FPE_NWFPE=y -CONFIG_PM=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y @@ -37,8 +36,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_MTD=y -CONFIG_MTD_CONCAT=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y @@ -48,17 +45,13 @@ CONFIG_MTD_NAND_ATMEL=y CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=8192 -CONFIG_ATMEL_SSC=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_LOWLEVEL is not set CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y CONFIG_MII=y CONFIG_MACB=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set # CONFIG_INPUT_MOUSEDEV_PSAUX is not set CONFIG_INPUT_MOUSEDEV_SCREEN_X=320 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=240 @@ -66,15 +59,14 @@ CONFIG_INPUT_EVDEV=y # CONFIG_KEYBOARD_ATKBD is not set CONFIG_KEYBOARD_GPIO=y # CONFIG_INPUT_MOUSE is not set +CONFIG_LEGACY_PTY_COUNT=16 CONFIG_SERIAL_ATMEL=y CONFIG_SERIAL_ATMEL_CONSOLE=y -CONFIG_LEGACY_PTY_COUNT=16 CONFIG_HW_RANDOM=y CONFIG_SPI=y CONFIG_SPI_ATMEL=y CONFIG_SPI_SPIDEV=y # CONFIG_HWMON is not set -# CONFIG_VGA_CONSOLE is not set CONFIG_SOUND=y CONFIG_SND=y CONFIG_SND_SEQUENCER=y @@ -82,7 +74,6 @@ CONFIG_SND_MIXER_OSS=y CONFIG_SND_PCM_OSS=y CONFIG_SND_SEQUENCER_OSS=y # CONFIG_SND_VERBOSE_PROCFS is not set -CONFIG_SND_AT73C213=y CONFIG_USB=y CONFIG_USB_DEVICEFS=y # CONFIG_USB_DEVICE_CLASS is not set @@ -105,7 +96,6 @@ CONFIG_LEDS_TRIGGER_HEARTBEAT=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_AT91SAM9=y CONFIG_EXT2_FS=y -CONFIG_INOTIFY=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y diff --git a/arch/arm/configs/at91sam9g45_defconfig b/arch/arm/configs/at91sam9g45_defconfig index c5876d244f4b..7f8f99919d34 100644 --- a/arch/arm/configs/at91sam9g45_defconfig +++ b/arch/arm/configs/at91sam9g45_defconfig @@ -73,11 +73,8 @@ CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_LOWLEVEL is not set CONFIG_NETDEVICES=y CONFIG_MII=y -CONFIG_DAVICOM_PHY=y -CONFIG_NET_ETHERNET=y CONFIG_MACB=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set +CONFIG_DAVICOM_PHY=y CONFIG_LIBERTAS_THINFIRM=m CONFIG_LIBERTAS_THINFIRM_USB=m CONFIG_AT76C50X_USB=m @@ -131,7 +128,6 @@ CONFIG_I2C_GPIO=y CONFIG_SPI=y CONFIG_SPI_ATMEL=y # CONFIG_HWMON is not set -# CONFIG_MFD_SUPPORT is not set CONFIG_FB=y CONFIG_FB_ATMEL=y CONFIG_FB_UDL=m diff --git a/arch/arm/configs/at91sam9rl_defconfig b/arch/arm/configs/at91sam9rl_defconfig index 75621e4d03fc..ad562ee64209 100644 --- a/arch/arm/configs/at91sam9rl_defconfig +++ b/arch/arm/configs/at91sam9rl_defconfig @@ -23,8 +23,6 @@ CONFIG_NET=y CONFIG_UNIX=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_MTD=y -CONFIG_MTD_CONCAT=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y @@ -35,7 +33,6 @@ CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=4 CONFIG_BLK_DEV_RAM_SIZE=24576 -CONFIG_ATMEL_SSC=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_SCSI_MULTI_LUN=y @@ -62,13 +59,11 @@ CONFIG_WATCHDOG_NOWAYOUT=y CONFIG_AT91SAM9X_WATCHDOG=y CONFIG_FB=y CONFIG_FB_ATMEL=y -# CONFIG_VGA_CONSOLE is not set CONFIG_MMC=y CONFIG_MMC_AT91=m CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_AT91SAM9=y CONFIG_EXT2_FS=y -CONFIG_INOTIFY=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_TMPFS=y From db5509f0c2b7e7c02e1294a10a4d4b04f2720c28 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Sun, 16 Oct 2011 00:03:17 +0800 Subject: [PATCH 154/207] ARM: at91: enable additional boards in existing soc defconfig files Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Cc: Nicolas Ferre Signed-off-by: Arnd Bergmann --- arch/arm/configs/at91sam9260_defconfig | 12 ++++++++++++ arch/arm/configs/at91sam9g20_defconfig | 11 +++++++++++ arch/arm/configs/at91sam9g45_defconfig | 1 + 3 files changed, 24 insertions(+) diff --git a/arch/arm/configs/at91sam9260_defconfig b/arch/arm/configs/at91sam9260_defconfig index 8a4c22d7be61..505b3765f87e 100644 --- a/arch/arm/configs/at91sam9260_defconfig +++ b/arch/arm/configs/at91sam9260_defconfig @@ -12,11 +12,23 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_IOSCHED_CFQ is not set CONFIG_ARCH_AT91=y CONFIG_ARCH_AT91SAM9260=y +CONFIG_ARCH_AT91SAM9260_SAM9XE=y CONFIG_MACH_AT91SAM9260EK=y +CONFIG_MACH_CAM60=y +CONFIG_MACH_SAM9_L9260=y +CONFIG_MACH_AFEB9260=y +CONFIG_MACH_USB_A9260=y +CONFIG_MACH_QIL_A9260=y +CONFIG_MACH_CPU9260=y +CONFIG_MACH_FLEXIBITY=y +CONFIG_MACH_SNAPPER_9260=y +CONFIG_MACH_AT91SAM_DT=y CONFIG_AT91_PROGRAMMABLE_CLOCKS=y # CONFIG_ARM_THUMB is not set CONFIG_ZBOOT_ROM_TEXT=0x0 CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_ARM_APPENDED_DTB=y +CONFIG_ARM_ATAG_DTB_COMPAT=y CONFIG_CMDLINE="mem=64M console=ttyS0,115200 initrd=0x21100000,3145728 root=/dev/ram0 rw" CONFIG_FPE_NWFPE=y CONFIG_NET=y diff --git a/arch/arm/configs/at91sam9g20_defconfig b/arch/arm/configs/at91sam9g20_defconfig index 23966c699065..9123568d9a8d 100644 --- a/arch/arm/configs/at91sam9g20_defconfig +++ b/arch/arm/configs/at91sam9g20_defconfig @@ -14,6 +14,15 @@ CONFIG_ARCH_AT91=y CONFIG_ARCH_AT91SAM9G20=y CONFIG_MACH_AT91SAM9G20EK=y CONFIG_MACH_AT91SAM9G20EK_2MMC=y +CONFIG_MACH_CPU9G20=y +CONFIG_MACH_ACMENETUSFOXG20=y +CONFIG_MACH_PORTUXG20=y +CONFIG_MACH_STAMP9G20=y +CONFIG_MACH_PCONTROL_G20=y +CONFIG_MACH_GSIA18S=y +CONFIG_MACH_USB_A9G20=y +CONFIG_MACH_SNAPPER_9260=y +CONFIG_MACH_AT91SAM_DT=y CONFIG_AT91_PROGRAMMABLE_CLOCKS=y # CONFIG_ARM_THUMB is not set CONFIG_AEABI=y @@ -21,6 +30,8 @@ CONFIG_LEDS=y CONFIG_LEDS_CPU=y CONFIG_ZBOOT_ROM_TEXT=0x0 CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_ARM_APPENDED_DTB=y +CONFIG_ARM_ATAG_DTB_COMPAT=y CONFIG_CMDLINE="mem=64M console=ttyS0,115200 initrd=0x21100000,3145728 root=/dev/ram0 rw" CONFIG_FPE_NWFPE=y CONFIG_NET=y diff --git a/arch/arm/configs/at91sam9g45_defconfig b/arch/arm/configs/at91sam9g45_defconfig index 7f8f99919d34..606d48f3b8f8 100644 --- a/arch/arm/configs/at91sam9g45_defconfig +++ b/arch/arm/configs/at91sam9g45_defconfig @@ -18,6 +18,7 @@ CONFIG_MODULE_UNLOAD=y CONFIG_ARCH_AT91=y CONFIG_ARCH_AT91SAM9G45=y CONFIG_MACH_AT91SAM9M10G45EK=y +CONFIG_MACH_AT91SAM_DT=y CONFIG_AT91_PROGRAMMABLE_CLOCKS=y CONFIG_AT91_SLOW_CLOCK=y CONFIG_AEABI=y From 884a45d964dd395eda945842afff5e16bcaedf56 Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Tue, 22 Nov 2011 07:44:47 -0800 Subject: [PATCH 155/207] cgroup_freezer: fix freezing groups with stopped tasks 2d3cbf8b (cgroup_freezer: update_freezer_state() does incorrect state transitions) removed is_task_frozen_enough and replaced it with a simple frozen call. This, however, breaks freezing for a group with stopped tasks because those cannot be frozen and so the group remains in CGROUP_FREEZING state (update_if_frozen doesn't count stopped tasks) and never reaches CGROUP_FROZEN. Let's add is_task_frozen_enough back and use it at the original locations (update_if_frozen and try_to_freeze_cgroup). Semantically we consider stopped tasks as frozen enough so we should consider both cases when testing frozen tasks. Testcase: mkdir /dev/freezer mount -t cgroup -o freezer none /dev/freezer mkdir /dev/freezer/foo sleep 1h & pid=$! kill -STOP $pid echo $pid > /dev/freezer/foo/tasks echo FROZEN > /dev/freezer/foo/freezer.state while true do cat /dev/freezer/foo/freezer.state [ "`cat /dev/freezer/foo/freezer.state`" = "FROZEN" ] && break sleep 1 done echo OK Signed-off-by: Michal Hocko Acked-by: Li Zefan Cc: Tomasz Buchert Cc: Paul Menage Cc: Andrew Morton Cc: stable@kernel.org Signed-off-by: Tejun Heo --- kernel/cgroup_freezer.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/kernel/cgroup_freezer.c b/kernel/cgroup_freezer.c index 5e828a2ca8e6..213c0351dad8 100644 --- a/kernel/cgroup_freezer.c +++ b/kernel/cgroup_freezer.c @@ -153,6 +153,13 @@ static void freezer_destroy(struct cgroup_subsys *ss, kfree(cgroup_freezer(cgroup)); } +/* task is frozen or will freeze immediately when next it gets woken */ +static bool is_task_frozen_enough(struct task_struct *task) +{ + return frozen(task) || + (task_is_stopped_or_traced(task) && freezing(task)); +} + /* * The call to cgroup_lock() in the freezer.state write method prevents * a write to that file racing against an attach, and hence the @@ -231,7 +238,7 @@ static void update_if_frozen(struct cgroup *cgroup, cgroup_iter_start(cgroup, &it); while ((task = cgroup_iter_next(cgroup, &it))) { ntotal++; - if (frozen(task)) + if (is_task_frozen_enough(task)) nfrozen++; } @@ -284,7 +291,7 @@ static int try_to_freeze_cgroup(struct cgroup *cgroup, struct freezer *freezer) while ((task = cgroup_iter_next(cgroup, &it))) { if (!freeze_task(task, true)) continue; - if (frozen(task)) + if (is_task_frozen_enough(task)) continue; if (!freezing(task) && !freezer_should_skip(task)) num_cant_freeze_now++; From 13020be8be2d5843c3810169cdbcc51f07ff020f Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Thu, 24 Nov 2011 09:40:07 +0000 Subject: [PATCH 156/207] powerpc: Fix compiliation with hugetlbfs enabled arch/powerpc/mm/hugetlbpage.c: In function 'reserve_hugetlb_gpages': arch/powerpc/mm/hugetlbpage.c:312:2: error: implicit declaration of function 'parse_args' Signed-off-by: Kumar Gala Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/mm/hugetlbpage.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 5964371303ac..8558b572e55d 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include From 49e44064d7e3f24f874a51dd513b83ef9994aa8a Mon Sep 17 00:00:00 2001 From: Tony Breeds Date: Tue, 22 Nov 2011 13:50:46 +0000 Subject: [PATCH 157/207] powerpc/44x: Add mtd ndfc to the ppx44x defconfig Signed-off-by: Tony Breeds Acked-by: Josh Boyer Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/configs/ppc44x_defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/configs/ppc44x_defconfig b/arch/powerpc/configs/ppc44x_defconfig index 6cdf1c0d2c8a..3b98d7354341 100644 --- a/arch/powerpc/configs/ppc44x_defconfig +++ b/arch/powerpc/configs/ppc44x_defconfig @@ -52,6 +52,8 @@ CONFIG_MTD_CFI=y CONFIG_MTD_JEDECPROBE=y CONFIG_MTD_CFI_AMDSTD=y CONFIG_MTD_PHYSMAP_OF=y +CONFIG_MTD_NAND=m +CONFIG_MTD_NAND_NDFC=m CONFIG_MTD_UBI=m CONFIG_MTD_UBI_GLUEBI=m CONFIG_PROC_DEVICETREE=y From 4c81f045c0bd2cbb78cc6446a4cd98038fe11a2e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 24 Nov 2011 19:22:24 -0500 Subject: [PATCH 158/207] ext4: fix racy use-after-free in ext4_end_io_dio() ext4_end_io_dio() queues io_end->work and then clears iocb->private; however, io_end->work calls aio_complete() which frees the iocb object. If that slab object gets reallocated, then ext4_end_io_dio() can end up clearing someone else's iocb->private, this use-after-free can cause a leak of a struct ext4_io_end_t structure. Detected and tested with slab poisoning. [ Note: Can also reproduce using 12 fio's against 12 file systems with the following configuration file: [global] direct=1 ioengine=libaio iodepth=1 bs=4k ba=4k size=128m [create] filename=${TESTDIR} rw=write -- tytso ] Google-Bug-Id: 5354697 Signed-off-by: Tejun Heo Signed-off-by: "Theodore Ts'o" Reported-by: Kent Overstreet Tested-by: Kent Overstreet Cc: stable@kernel.org --- fs/ext4/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index fffec40d5996..848f436df29f 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2807,8 +2807,8 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset, spin_unlock_irqrestore(&ei->i_completed_io_lock, flags); /* queue the work to convert unwritten extents to written */ - queue_work(wq, &io_end->work); iocb->private = NULL; + queue_work(wq, &io_end->work); /* XXX: probably should move into the real I/O completion handler */ inode_dio_done(inode); From b52fabca369f433999837b73031bdd34feb6fca2 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 24 Nov 2011 10:29:14 -0500 Subject: [PATCH 159/207] hwmon: Remove redundant spi driver bus initialization In ancient times it was necessary to manually initialize the bus field of an spi_driver to spi_bus_type. These days this is done in spi_register_driver(), so we can drop the manual assignment. The patch was generated using the following coccinelle semantic patch: // @@ identifier _driver; @@ struct spi_driver _driver = { .driver = { - .bus = &spi_bus_type, }, }; // Signed-off-by: Lars-Peter Clausen Cc: Jean Delvare Cc: Guenter Roeck Cc: lm-sensors@lm-sensors.org Signed-off-by: Guenter Roeck --- drivers/hwmon/ad7314.c | 1 - drivers/hwmon/ads7871.c | 1 - 2 files changed, 2 deletions(-) diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c index 318e38e85376..5d760f3d21c2 100644 --- a/drivers/hwmon/ad7314.c +++ b/drivers/hwmon/ad7314.c @@ -160,7 +160,6 @@ MODULE_DEVICE_TABLE(spi, ad7314_id); static struct spi_driver ad7314_driver = { .driver = { .name = "ad7314", - .bus = &spi_bus_type, .owner = THIS_MODULE, }, .probe = ad7314_probe, diff --git a/drivers/hwmon/ads7871.c b/drivers/hwmon/ads7871.c index 52319340e182..04450f8bf5da 100644 --- a/drivers/hwmon/ads7871.c +++ b/drivers/hwmon/ads7871.c @@ -227,7 +227,6 @@ static int __devexit ads7871_remove(struct spi_device *spi) static struct spi_driver ads7871_driver = { .driver = { .name = DEVICE_NAME, - .bus = &spi_bus_type, .owner = THIS_MODULE, }, From 25a236a5dba47a16affb105525cfd75eaa03ceea Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 25 Nov 2011 02:31:00 -0500 Subject: [PATCH 160/207] hwmon: convert drivers/hwmon/* to use module_platform_driver() This patch converts the drivers in drivers/hwmon/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Cc: Donggeun Kim Cc: Simon Guinot Cc: Lars-Peter Clausen Cc: MyungJoo Ham Cc: Ben Dooks Cc: Hans de Goede Cc: J Keerthy Cc: David S. Miller Cc: Mark Brown Signed-off-by: Axel Lin Acked-by: Mark Brown Signed-off-by: Guenter Roeck --- drivers/hwmon/exynos4_tmu.c | 12 +----------- drivers/hwmon/gpio-fan.c | 13 +------------ drivers/hwmon/jz4740-hwmon.c | 12 +----------- drivers/hwmon/ntc_thermistor.c | 14 +------------- drivers/hwmon/s3c-hwmon.c | 13 +------------ drivers/hwmon/sch5627.c | 13 +------------ drivers/hwmon/sch5636.c | 13 +------------ drivers/hwmon/twl4030-madc-hwmon.c | 14 +------------- drivers/hwmon/ultra45_env.c | 13 +------------ drivers/hwmon/wm831x-hwmon.c | 12 +----------- drivers/hwmon/wm8350-hwmon.c | 12 +----------- 11 files changed, 11 insertions(+), 130 deletions(-) diff --git a/drivers/hwmon/exynos4_tmu.c b/drivers/hwmon/exynos4_tmu.c index faa0884f61f6..f2359a0093bd 100644 --- a/drivers/hwmon/exynos4_tmu.c +++ b/drivers/hwmon/exynos4_tmu.c @@ -506,17 +506,7 @@ static struct platform_driver exynos4_tmu_driver = { .resume = exynos4_tmu_resume, }; -static int __init exynos4_tmu_driver_init(void) -{ - return platform_driver_register(&exynos4_tmu_driver); -} -module_init(exynos4_tmu_driver_init); - -static void __exit exynos4_tmu_driver_exit(void) -{ - platform_driver_unregister(&exynos4_tmu_driver); -} -module_exit(exynos4_tmu_driver_exit); +module_platform_driver(exynos4_tmu_driver); MODULE_DESCRIPTION("EXYNOS4 TMU Driver"); MODULE_AUTHOR("Donggeun Kim "); diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index 89aa9fb743af..9ba38f318ffb 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -539,18 +539,7 @@ static struct platform_driver gpio_fan_driver = { }, }; -static int __init gpio_fan_init(void) -{ - return platform_driver_register(&gpio_fan_driver); -} - -static void __exit gpio_fan_exit(void) -{ - platform_driver_unregister(&gpio_fan_driver); -} - -module_init(gpio_fan_init); -module_exit(gpio_fan_exit); +module_platform_driver(gpio_fan_driver); MODULE_AUTHOR("Simon Guinot "); MODULE_DESCRIPTION("GPIO FAN driver"); diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c index fea292d43407..7a48b1eb4233 100644 --- a/drivers/hwmon/jz4740-hwmon.c +++ b/drivers/hwmon/jz4740-hwmon.c @@ -212,17 +212,7 @@ struct platform_driver jz4740_hwmon_driver = { }, }; -static int __init jz4740_hwmon_init(void) -{ - return platform_driver_register(&jz4740_hwmon_driver); -} -module_init(jz4740_hwmon_init); - -static void __exit jz4740_hwmon_exit(void) -{ - platform_driver_unregister(&jz4740_hwmon_driver); -} -module_exit(jz4740_hwmon_exit); +module_platform_driver(jz4740_hwmon_driver); MODULE_DESCRIPTION("JZ4740 SoC HWMON driver"); MODULE_AUTHOR("Lars-Peter Clausen "); diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c index eab11615dced..9b382ec2c3bd 100644 --- a/drivers/hwmon/ntc_thermistor.c +++ b/drivers/hwmon/ntc_thermistor.c @@ -432,19 +432,7 @@ static struct platform_driver ntc_thermistor_driver = { .id_table = ntc_thermistor_id, }; -static int __init ntc_thermistor_init(void) -{ - return platform_driver_register(&ntc_thermistor_driver); -} - -module_init(ntc_thermistor_init); - -static void __exit ntc_thermistor_cleanup(void) -{ - platform_driver_unregister(&ntc_thermistor_driver); -} - -module_exit(ntc_thermistor_cleanup); +module_platform_driver(ntc_thermistor_driver); MODULE_DESCRIPTION("NTC Thermistor Driver"); MODULE_AUTHOR("MyungJoo Ham "); diff --git a/drivers/hwmon/s3c-hwmon.c b/drivers/hwmon/s3c-hwmon.c index b39f52e2752a..f6c26d19f521 100644 --- a/drivers/hwmon/s3c-hwmon.c +++ b/drivers/hwmon/s3c-hwmon.c @@ -393,18 +393,7 @@ static struct platform_driver s3c_hwmon_driver = { .remove = __devexit_p(s3c_hwmon_remove), }; -static int __init s3c_hwmon_init(void) -{ - return platform_driver_register(&s3c_hwmon_driver); -} - -static void __exit s3c_hwmon_exit(void) -{ - platform_driver_unregister(&s3c_hwmon_driver); -} - -module_init(s3c_hwmon_init); -module_exit(s3c_hwmon_exit); +module_platform_driver(s3c_hwmon_driver); MODULE_AUTHOR("Ben Dooks "); MODULE_DESCRIPTION("S3C ADC HWMon driver"); diff --git a/drivers/hwmon/sch5627.c b/drivers/hwmon/sch5627.c index e3b5c6039c25..79b6dabe3161 100644 --- a/drivers/hwmon/sch5627.c +++ b/drivers/hwmon/sch5627.c @@ -590,19 +590,8 @@ static struct platform_driver sch5627_driver = { .remove = sch5627_remove, }; -static int __init sch5627_init(void) -{ - return platform_driver_register(&sch5627_driver); -} - -static void __exit sch5627_exit(void) -{ - platform_driver_unregister(&sch5627_driver); -} +module_platform_driver(sch5627_driver); MODULE_DESCRIPTION("SMSC SCH5627 Hardware Monitoring Driver"); MODULE_AUTHOR("Hans de Goede "); MODULE_LICENSE("GPL"); - -module_init(sch5627_init); -module_exit(sch5627_exit); diff --git a/drivers/hwmon/sch5636.c b/drivers/hwmon/sch5636.c index 244407aa79fc..9d5236fb09b4 100644 --- a/drivers/hwmon/sch5636.c +++ b/drivers/hwmon/sch5636.c @@ -521,19 +521,8 @@ static struct platform_driver sch5636_driver = { .remove = sch5636_remove, }; -static int __init sch5636_init(void) -{ - return platform_driver_register(&sch5636_driver); -} - -static void __exit sch5636_exit(void) -{ - platform_driver_unregister(&sch5636_driver); -} +module_platform_driver(sch5636_driver); MODULE_DESCRIPTION("SMSC SCH5636 Hardware Monitoring Driver"); MODULE_AUTHOR("Hans de Goede "); MODULE_LICENSE("GPL"); - -module_init(sch5636_init); -module_exit(sch5636_exit); diff --git a/drivers/hwmon/twl4030-madc-hwmon.c b/drivers/hwmon/twl4030-madc-hwmon.c index 57240740b161..0018c7dd0097 100644 --- a/drivers/hwmon/twl4030-madc-hwmon.c +++ b/drivers/hwmon/twl4030-madc-hwmon.c @@ -136,19 +136,7 @@ static struct platform_driver twl4030_madc_hwmon_driver = { }, }; -static int __init twl4030_madc_hwmon_init(void) -{ - return platform_driver_register(&twl4030_madc_hwmon_driver); -} - -module_init(twl4030_madc_hwmon_init); - -static void __exit twl4030_madc_hwmon_exit(void) -{ - platform_driver_unregister(&twl4030_madc_hwmon_driver); -} - -module_exit(twl4030_madc_hwmon_exit); +module_platform_driver(twl4030_madc_hwmon_driver); MODULE_DESCRIPTION("TWL4030 ADC Hwmon driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/ultra45_env.c b/drivers/hwmon/ultra45_env.c index 3cd07bf42dca..b9a87e89bab4 100644 --- a/drivers/hwmon/ultra45_env.c +++ b/drivers/hwmon/ultra45_env.c @@ -309,15 +309,4 @@ static struct platform_driver env_driver = { .remove = __devexit_p(env_remove), }; -static int __init env_init(void) -{ - return platform_driver_register(&env_driver); -} - -static void __exit env_exit(void) -{ - platform_driver_unregister(&env_driver); -} - -module_init(env_init); -module_exit(env_exit); +module_platform_driver(env_driver); diff --git a/drivers/hwmon/wm831x-hwmon.c b/drivers/hwmon/wm831x-hwmon.c index 97b1f834a471..9b598ed26020 100644 --- a/drivers/hwmon/wm831x-hwmon.c +++ b/drivers/hwmon/wm831x-hwmon.c @@ -209,17 +209,7 @@ static struct platform_driver wm831x_hwmon_driver = { }, }; -static int __init wm831x_hwmon_init(void) -{ - return platform_driver_register(&wm831x_hwmon_driver); -} -module_init(wm831x_hwmon_init); - -static void __exit wm831x_hwmon_exit(void) -{ - platform_driver_unregister(&wm831x_hwmon_driver); -} -module_exit(wm831x_hwmon_exit); +module_platform_driver(wm831x_hwmon_driver); MODULE_AUTHOR("Mark Brown "); MODULE_DESCRIPTION("WM831x Hardware Monitoring"); diff --git a/drivers/hwmon/wm8350-hwmon.c b/drivers/hwmon/wm8350-hwmon.c index 13290595ca86..3ff67edbdc44 100644 --- a/drivers/hwmon/wm8350-hwmon.c +++ b/drivers/hwmon/wm8350-hwmon.c @@ -133,17 +133,7 @@ static struct platform_driver wm8350_hwmon_driver = { }, }; -static int __init wm8350_hwmon_init(void) -{ - return platform_driver_register(&wm8350_hwmon_driver); -} -module_init(wm8350_hwmon_init); - -static void __exit wm8350_hwmon_exit(void) -{ - platform_driver_unregister(&wm8350_hwmon_driver); -} -module_exit(wm8350_hwmon_exit); +module_platform_driver(wm8350_hwmon_driver); MODULE_AUTHOR("Mark Brown "); MODULE_DESCRIPTION("WM8350 Hardware Monitoring"); From aaa0b4f00729d5530b7d983930e60255574b347b Mon Sep 17 00:00:00 2001 From: Andy Whitcroft Date: Fri, 25 Nov 2011 10:56:22 +0000 Subject: [PATCH 161/207] iio: iio_event_getfd -- fix ev_int build failure Fix build failure in staging iio driver: .../drivers/staging/iio/industrialio-core.c: In function 'iio_event_getfd': .../drivers/staging/iio/industrialio-core.c:262:32: error: 'ev_int' undeclared (first use in this function) Also convert the rest of the function to use the new variable. Signed-off-by: Andy Whitcroft Signed-off-by: Linus Torvalds --- drivers/staging/iio/industrialio-core.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c index 26564094e33b..aec9311b108c 100644 --- a/drivers/staging/iio/industrialio-core.c +++ b/drivers/staging/iio/industrialio-core.c @@ -242,25 +242,24 @@ static const struct file_operations iio_event_chrdev_fileops = { static int iio_event_getfd(struct iio_dev *indio_dev) { + struct iio_event_interface *ev_int = indio_dev->event_interface; int fd; - if (indio_dev->event_interface == NULL) + if (ev_int == NULL) return -ENODEV; - mutex_lock(&indio_dev->event_interface->event_list_lock); - if (test_and_set_bit(IIO_BUSY_BIT_POS, - &indio_dev->event_interface->flags)) { - mutex_unlock(&indio_dev->event_interface->event_list_lock); + mutex_lock(&ev_int->event_list_lock); + if (test_and_set_bit(IIO_BUSY_BIT_POS, &ev_int->flags)) { + mutex_unlock(&ev_int->event_list_lock); return -EBUSY; } - mutex_unlock(&indio_dev->event_interface->event_list_lock); + mutex_unlock(&ev_int->event_list_lock); fd = anon_inode_getfd("iio:event", - &iio_event_chrdev_fileops, - indio_dev->event_interface, O_RDONLY); + &iio_event_chrdev_fileops, ev_int, O_RDONLY); if (fd < 0) { - mutex_lock(&indio_dev->event_interface->event_list_lock); + mutex_lock(&ev_int->event_list_lock); clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags); - mutex_unlock(&indio_dev->event_interface->event_list_lock); + mutex_unlock(&ev_int->event_list_lock); } return fd; } From 41dfaa934c5d866d626de9bea785e6168524a47e Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 22 Nov 2011 04:01:06 +0100 Subject: [PATCH 162/207] ARM: 7168/1: use cache type functions for arch_get_unmapped_area There are already cache type decoding functions, so use those instead of custom decode code which only works for ARMv6. Signed-off-by: Rob Herring Acked-by: Nicolas Pitre Acked-by: Will Deacon Signed-off-by: Russell King --- arch/arm/mm/mmap.c | 23 ++++++----------------- 1 file changed, 6 insertions(+), 17 deletions(-) diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c index 74be05f3e03a..44b628e4d6ea 100644 --- a/arch/arm/mm/mmap.c +++ b/arch/arm/mm/mmap.c @@ -9,8 +9,7 @@ #include #include #include -#include -#include +#include #define COLOUR_ALIGN(addr,pgoff) \ ((((addr)+SHMLBA-1)&~(SHMLBA-1)) + \ @@ -32,25 +31,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, struct mm_struct *mm = current->mm; struct vm_area_struct *vma; unsigned long start_addr; -#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) - unsigned int cache_type; - int do_align = 0, aliasing = 0; + int do_align = 0; + int aliasing = cache_is_vipt_aliasing(); /* * We only need to do colour alignment if either the I or D - * caches alias. This is indicated by bits 9 and 21 of the - * cache type register. + * caches alias. */ - cache_type = read_cpuid_cachetype(); - if (cache_type != read_cpuid_id()) { - aliasing = (cache_type | cache_type >> 12) & (1 << 11); - if (aliasing) - do_align = filp || flags & MAP_SHARED; - } -#else -#define do_align 0 -#define aliasing 0 -#endif + if (aliasing) + do_align = filp || (flags & MAP_SHARED); /* * We enforce the MAP_FIXED case. From c89cefed35c8c5f53f36757f8a6768e390394ee3 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Tue, 22 Nov 2011 23:42:12 +0100 Subject: [PATCH 163/207] ARM: 7170/2: fix compilation breakage in entry-armv.S Fix compilation failure, when Thumb support is not enabled: arch/arm/kernel/entry-armv.S: Assembler messages: arch/arm/kernel/entry-armv.S:501: Error: backward ref to unknown label "2:" arch/arm/kernel/entry-armv.S:502: Error: backward ref to unknown label "3:" make[2]: *** [arch/arm/kernel/entry-armv.o] Error 1 Signed-off-by: Guennadi Liakhovetski Reviewed-by: Dave Martin Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 9ad50c4208ae..b145f16c91bc 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -497,7 +497,7 @@ ENDPROC(__und_usr) .popsection .pushsection __ex_table,"a" .long 1b, 4b -#if __LINUX_ARM_ARCH__ >= 7 +#if CONFIG_ARM_THUMB && __LINUX_ARM_ARCH__ >= 6 && CONFIG_CPU_V7 .long 2b, 4b .long 3b, 4b #endif From c36ef4b1762302a493c6cb754073bded084700e2 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 23 Nov 2011 11:28:25 +0100 Subject: [PATCH 164/207] ARM: 7171/1: unwind: add unwind directives to bitops assembly macros The bitops functions (e.g. _test_and_set_bit) on ARM do not have unwind annotations and therefore the kernel cannot backtrace out of them on a fatal error (for example, NULL pointer dereference). This patch annotates the bitops assembly macros with UNWIND annotations so that we can produce a meaningful backtrace on error. Callers of the macros are modified to pass their function name as a macro parameter, enforcing that the macros are used as standalone function implementations. Acked-by: Dave Martin Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/lib/bitops.h | 26 ++++++++++++++++++++++---- arch/arm/lib/changebit.S | 4 +--- arch/arm/lib/clearbit.S | 4 +--- arch/arm/lib/setbit.S | 4 +--- arch/arm/lib/testchangebit.S | 4 +--- arch/arm/lib/testclearbit.S | 4 +--- arch/arm/lib/testsetbit.S | 4 +--- 7 files changed, 28 insertions(+), 22 deletions(-) diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h index 10d868a5a481..d6408d1ee543 100644 --- a/arch/arm/lib/bitops.h +++ b/arch/arm/lib/bitops.h @@ -1,5 +1,9 @@ +#include + #if __LINUX_ARM_ARCH__ >= 6 - .macro bitop, instr + .macro bitop, name, instr +ENTRY( \name ) +UNWIND( .fnstart ) ands ip, r1, #3 strneb r1, [ip] @ assert word-aligned mov r2, #1 @@ -13,9 +17,13 @@ cmp r0, #0 bne 1b bx lr +UNWIND( .fnend ) +ENDPROC(\name ) .endm - .macro testop, instr, store + .macro testop, name, instr, store +ENTRY( \name ) +UNWIND( .fnstart ) ands ip, r1, #3 strneb r1, [ip] @ assert word-aligned mov r2, #1 @@ -34,9 +42,13 @@ cmp r0, #0 movne r0, #1 2: bx lr +UNWIND( .fnend ) +ENDPROC(\name ) .endm #else - .macro bitop, instr + .macro bitop, name, instr +ENTRY( \name ) +UNWIND( .fnstart ) ands ip, r1, #3 strneb r1, [ip] @ assert word-aligned and r2, r0, #31 @@ -49,6 +61,8 @@ str r2, [r1, r0, lsl #2] restore_irqs ip mov pc, lr +UNWIND( .fnend ) +ENDPROC(\name ) .endm /** @@ -59,7 +73,9 @@ * Note: we can trivially conditionalise the store instruction * to avoid dirtying the data cache. */ - .macro testop, instr, store + .macro testop, name, instr, store +ENTRY( \name ) +UNWIND( .fnstart ) ands ip, r1, #3 strneb r1, [ip] @ assert word-aligned and r3, r0, #31 @@ -73,5 +89,7 @@ moveq r0, #0 restore_irqs ip mov pc, lr +UNWIND( .fnend ) +ENDPROC(\name ) .endm #endif diff --git a/arch/arm/lib/changebit.S b/arch/arm/lib/changebit.S index 68ed5b62e839..f4027862172f 100644 --- a/arch/arm/lib/changebit.S +++ b/arch/arm/lib/changebit.S @@ -12,6 +12,4 @@ #include "bitops.h" .text -ENTRY(_change_bit) - bitop eor -ENDPROC(_change_bit) +bitop _change_bit, eor diff --git a/arch/arm/lib/clearbit.S b/arch/arm/lib/clearbit.S index 4c04c3b51eeb..f6b75fb64d30 100644 --- a/arch/arm/lib/clearbit.S +++ b/arch/arm/lib/clearbit.S @@ -12,6 +12,4 @@ #include "bitops.h" .text -ENTRY(_clear_bit) - bitop bic -ENDPROC(_clear_bit) +bitop _clear_bit, bic diff --git a/arch/arm/lib/setbit.S b/arch/arm/lib/setbit.S index bbee5c66a23e..618fedae4b37 100644 --- a/arch/arm/lib/setbit.S +++ b/arch/arm/lib/setbit.S @@ -12,6 +12,4 @@ #include "bitops.h" .text -ENTRY(_set_bit) - bitop orr -ENDPROC(_set_bit) +bitop _set_bit, orr diff --git a/arch/arm/lib/testchangebit.S b/arch/arm/lib/testchangebit.S index 15a4d431f229..4becdc3a59cb 100644 --- a/arch/arm/lib/testchangebit.S +++ b/arch/arm/lib/testchangebit.S @@ -12,6 +12,4 @@ #include "bitops.h" .text -ENTRY(_test_and_change_bit) - testop eor, str -ENDPROC(_test_and_change_bit) +testop _test_and_change_bit, eor, str diff --git a/arch/arm/lib/testclearbit.S b/arch/arm/lib/testclearbit.S index 521b66b5b95d..918841dcce7a 100644 --- a/arch/arm/lib/testclearbit.S +++ b/arch/arm/lib/testclearbit.S @@ -12,6 +12,4 @@ #include "bitops.h" .text -ENTRY(_test_and_clear_bit) - testop bicne, strne -ENDPROC(_test_and_clear_bit) +testop _test_and_clear_bit, bicne, strne diff --git a/arch/arm/lib/testsetbit.S b/arch/arm/lib/testsetbit.S index 1c98cc2185bb..8d1b2fe9e487 100644 --- a/arch/arm/lib/testsetbit.S +++ b/arch/arm/lib/testsetbit.S @@ -12,6 +12,4 @@ #include "bitops.h" .text -ENTRY(_test_and_set_bit) - testop orreq, streq -ENDPROC(_test_and_set_bit) +testop _test_and_set_bit, orreq, streq From ea2e7057c0234cfb8b09467d8f137760d371fc72 Mon Sep 17 00:00:00 2001 From: Sumit Bhattacharya Date: Thu, 24 Nov 2011 00:47:12 +0100 Subject: [PATCH 165/207] ARM: 7172/1: dma: Drop GFP_COMP for DMA memory allocations dma_alloc_coherent wants to split pages after allocation in order to reduce the memory footprint. This does not work well with GFP_COMP pages, so drop this flag before allocation. This patch is ported from arch/avr32 (commit 3611553ef985ef7c5863c8a94641738addd04cff). [swarren: s/HUGETLB_PAGE/HUGETLBFS/ in comment, minor comment cleanup] Signed-off-by: Sumit Bhattacharya Tested-by: Varun Colbert Signed-off-by: Stephen Warren Signed-off-by: Russell King --- arch/arm/mm/dma-mapping.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index ab584569930e..1aa664a1999f 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -332,6 +332,15 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, struct page *page; void *addr; + /* + * Following is a work-around (a.k.a. hack) to prevent pages + * with __GFP_COMP being passed to split_page() which cannot + * handle them. The real problem is that this flag probably + * should be 0 on ARM as it is not supported on this + * platform; see CONFIG_HUGETLBFS. + */ + gfp &= ~(__GFP_COMP); + *handle = ~0; size = PAGE_ALIGN(size); From 46589e2922509f9134ce79fa75180886c9765c58 Mon Sep 17 00:00:00 2001 From: Jon Medhurst Date: Thu, 24 Nov 2011 13:01:08 +0100 Subject: [PATCH 166/207] ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels When compiling kprobes-test-thumb.c an error like below may occur: /tmp/ccKcuJcG.s:19179: Error: offset out of range This is caused by the compiler underestimating the size of the inline assembler instructions containing ".space 0x1000" and failing to spill the literal pool in time to prevent the generation of PC relative load instruction with invalid offsets. The fix implemented by this patch is to replace a single large .space directive by a number of 4 byte .space's. This requires splitting the macros which generate test cases for branch instructions into two forms: one with, and one without support for inserting extra code between branch and target. Acked-by: Nicolas Pitre Signed-off-by: Jon Medhurst Signed-off-by: Russell King --- arch/arm/kernel/kprobes-test-thumb.c | 16 ++--- arch/arm/kernel/kprobes-test.h | 102 +++++++++++++++++++-------- 2 files changed, 79 insertions(+), 39 deletions(-) diff --git a/arch/arm/kernel/kprobes-test-thumb.c b/arch/arm/kernel/kprobes-test-thumb.c index 5e726c31c45a..5d8b85792222 100644 --- a/arch/arm/kernel/kprobes-test-thumb.c +++ b/arch/arm/kernel/kprobes-test-thumb.c @@ -222,8 +222,8 @@ void kprobe_thumb16_test_cases(void) DONT_TEST_IN_ITBLOCK( TEST_BF_R( "cbnz r",0,0, ", 2f") TEST_BF_R( "cbz r",2,-1,", 2f") - TEST_BF_RX( "cbnz r",4,1, ", 2f",0x20) - TEST_BF_RX( "cbz r",7,0, ", 2f",0x40) + TEST_BF_RX( "cbnz r",4,1, ", 2f", SPACE_0x20) + TEST_BF_RX( "cbz r",7,0, ", 2f", SPACE_0x40) ) TEST_R("sxth r0, r",7, HH1,"") TEST_R("sxth r7, r",0, HH2,"") @@ -246,7 +246,7 @@ DONT_TEST_IN_ITBLOCK( TESTCASE_START(code) \ TEST_ARG_PTR(13, offset) \ TEST_ARG_END("") \ - TEST_BRANCH_F(code,0) \ + TEST_BRANCH_F(code) \ TESTCASE_END TEST("push {r0}") @@ -319,8 +319,8 @@ CONDITION_INSTRUCTIONS(8, TEST_BF( "b 2f") TEST_BB( "b 2b") - TEST_BF_X("b 2f", 0x400) - TEST_BB_X("b 2b", 0x400) + TEST_BF_X("b 2f", SPACE_0x400) + TEST_BB_X("b 2b", SPACE_0x400) TEST_GROUP("Testing instructions in IT blocks") @@ -746,7 +746,7 @@ CONDITION_INSTRUCTIONS(22, TEST_BB("bne.w 2b") TEST_BF("bgt.w 2f") TEST_BB("blt.w 2b") - TEST_BF_X("bpl.w 2f",0x1000) + TEST_BF_X("bpl.w 2f", SPACE_0x1000) ) TEST_UNSUPPORTED("msr cpsr, r0") @@ -786,11 +786,11 @@ CONDITION_INSTRUCTIONS(22, TEST_BF( "b.w 2f") TEST_BB( "b.w 2b") - TEST_BF_X("b.w 2f", 0x1000) + TEST_BF_X("b.w 2f", SPACE_0x1000) TEST_BF( "bl.w 2f") TEST_BB( "bl.w 2b") - TEST_BB_X("bl.w 2b", 0x1000) + TEST_BB_X("bl.w 2b", SPACE_0x1000) TEST_X( "blx __dummy_arm_subroutine", ".arm \n\t" diff --git a/arch/arm/kernel/kprobes-test.h b/arch/arm/kernel/kprobes-test.h index 0dc5d77b9356..e28a869b1ae4 100644 --- a/arch/arm/kernel/kprobes-test.h +++ b/arch/arm/kernel/kprobes-test.h @@ -149,23 +149,31 @@ struct test_arg_end { "1: "instruction" \n\t" \ " nop \n\t" -#define TEST_BRANCH_F(instruction, xtra_dist) \ +#define TEST_BRANCH_F(instruction) \ TEST_INSTRUCTION(instruction) \ - ".if "#xtra_dist" \n\t" \ - " b 99f \n\t" \ - ".space "#xtra_dist" \n\t" \ - ".endif \n\t" \ " b 99f \n\t" \ "2: nop \n\t" -#define TEST_BRANCH_B(instruction, xtra_dist) \ +#define TEST_BRANCH_B(instruction) \ " b 50f \n\t" \ " b 99f \n\t" \ "2: nop \n\t" \ " b 99f \n\t" \ - ".if "#xtra_dist" \n\t" \ - ".space "#xtra_dist" \n\t" \ - ".endif \n\t" \ + TEST_INSTRUCTION(instruction) + +#define TEST_BRANCH_FX(instruction, codex) \ + TEST_INSTRUCTION(instruction) \ + " b 99f \n\t" \ + codex" \n\t" \ + " b 99f \n\t" \ + "2: nop \n\t" + +#define TEST_BRANCH_BX(instruction, codex) \ + " b 50f \n\t" \ + " b 99f \n\t" \ + "2: nop \n\t" \ + " b 99f \n\t" \ + codex" \n\t" \ TEST_INSTRUCTION(instruction) #define TESTCASE_END \ @@ -301,47 +309,60 @@ struct test_arg_end { TESTCASE_START(code1 #reg1 code2) \ TEST_ARG_PTR(reg1, val1) \ TEST_ARG_END("") \ - TEST_BRANCH_F(code1 #reg1 code2, 0) \ + TEST_BRANCH_F(code1 #reg1 code2) \ TESTCASE_END -#define TEST_BF_X(code, xtra_dist) \ +#define TEST_BF(code) \ TESTCASE_START(code) \ TEST_ARG_END("") \ - TEST_BRANCH_F(code, xtra_dist) \ + TEST_BRANCH_F(code) \ TESTCASE_END -#define TEST_BB_X(code, xtra_dist) \ +#define TEST_BB(code) \ TESTCASE_START(code) \ TEST_ARG_END("") \ - TEST_BRANCH_B(code, xtra_dist) \ + TEST_BRANCH_B(code) \ TESTCASE_END -#define TEST_BF_RX(code1, reg, val, code2, xtra_dist) \ - TESTCASE_START(code1 #reg code2) \ - TEST_ARG_REG(reg, val) \ - TEST_ARG_END("") \ - TEST_BRANCH_F(code1 #reg code2, xtra_dist) \ +#define TEST_BF_R(code1, reg, val, code2) \ + TESTCASE_START(code1 #reg code2) \ + TEST_ARG_REG(reg, val) \ + TEST_ARG_END("") \ + TEST_BRANCH_F(code1 #reg code2) \ TESTCASE_END -#define TEST_BB_RX(code1, reg, val, code2, xtra_dist) \ - TESTCASE_START(code1 #reg code2) \ - TEST_ARG_REG(reg, val) \ - TEST_ARG_END("") \ - TEST_BRANCH_B(code1 #reg code2, xtra_dist) \ +#define TEST_BB_R(code1, reg, val, code2) \ + TESTCASE_START(code1 #reg code2) \ + TEST_ARG_REG(reg, val) \ + TEST_ARG_END("") \ + TEST_BRANCH_B(code1 #reg code2) \ TESTCASE_END -#define TEST_BF(code) TEST_BF_X(code, 0) -#define TEST_BB(code) TEST_BB_X(code, 0) - -#define TEST_BF_R(code1, reg, val, code2) TEST_BF_RX(code1, reg, val, code2, 0) -#define TEST_BB_R(code1, reg, val, code2) TEST_BB_RX(code1, reg, val, code2, 0) - #define TEST_BF_RR(code1, reg1, val1, code2, reg2, val2, code3) \ TESTCASE_START(code1 #reg1 code2 #reg2 code3) \ TEST_ARG_REG(reg1, val1) \ TEST_ARG_REG(reg2, val2) \ TEST_ARG_END("") \ - TEST_BRANCH_F(code1 #reg1 code2 #reg2 code3, 0) \ + TEST_BRANCH_F(code1 #reg1 code2 #reg2 code3) \ + TESTCASE_END + +#define TEST_BF_X(code, codex) \ + TESTCASE_START(code) \ + TEST_ARG_END("") \ + TEST_BRANCH_FX(code, codex) \ + TESTCASE_END + +#define TEST_BB_X(code, codex) \ + TESTCASE_START(code) \ + TEST_ARG_END("") \ + TEST_BRANCH_BX(code, codex) \ + TESTCASE_END + +#define TEST_BF_RX(code1, reg, val, code2, codex) \ + TESTCASE_START(code1 #reg code2) \ + TEST_ARG_REG(reg, val) \ + TEST_ARG_END("") \ + TEST_BRANCH_FX(code1 #reg code2, codex) \ TESTCASE_END #define TEST_X(code, codex) \ @@ -372,6 +393,25 @@ struct test_arg_end { TESTCASE_END +/* + * Macros for defining space directives spread over multiple lines. + * These are required so the compiler guesses better the length of inline asm + * code and will spill the literal pool early enough to avoid generating PC + * relative loads with out of range offsets. + */ +#define TWICE(x) x x +#define SPACE_0x8 TWICE(".space 4\n\t") +#define SPACE_0x10 TWICE(SPACE_0x8) +#define SPACE_0x20 TWICE(SPACE_0x10) +#define SPACE_0x40 TWICE(SPACE_0x20) +#define SPACE_0x80 TWICE(SPACE_0x40) +#define SPACE_0x100 TWICE(SPACE_0x80) +#define SPACE_0x200 TWICE(SPACE_0x100) +#define SPACE_0x400 TWICE(SPACE_0x200) +#define SPACE_0x800 TWICE(SPACE_0x400) +#define SPACE_0x1000 TWICE(SPACE_0x800) + + /* Various values used in test cases... */ #define N(val) (val ^ 0xffffffff) #define VAL1 0x12345678 From 97371fa99c1900a84a5220639edd726b35d73931 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 25 Nov 2011 00:23:28 +0100 Subject: [PATCH 167/207] ARM: 7175/1: add subname parameter to mfp_set_groupg callers commit 798681bf "ARM: 7158/1: add new MFP implement for NUC900" adds subname parameter for mfp_set_groupg. Thus add subname parameter to the callers. Signed-off-by: Axel Lin Acked-by: Mark Brown Acked-by: Wan Zongshun Signed-off-by: Russell King --- drivers/i2c/busses/i2c-nuc900.c | 2 +- drivers/spi/spi-nuc900.c | 2 +- sound/soc/nuc900/nuc900-ac97.c | 3 ++- 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-nuc900.c b/drivers/i2c/busses/i2c-nuc900.c index 835e47b39bc2..03b615778887 100644 --- a/drivers/i2c/busses/i2c-nuc900.c +++ b/drivers/i2c/busses/i2c-nuc900.c @@ -593,7 +593,7 @@ static int __devinit nuc900_i2c_probe(struct platform_device *pdev) i2c->adap.algo_data = i2c; i2c->adap.dev.parent = &pdev->dev; - mfp_set_groupg(&pdev->dev); + mfp_set_groupg(&pdev->dev, NULL); clk_get_rate(i2c->clk); diff --git a/drivers/spi/spi-nuc900.c b/drivers/spi/spi-nuc900.c index e763254741c2..21c70b2b8311 100644 --- a/drivers/spi/spi-nuc900.c +++ b/drivers/spi/spi-nuc900.c @@ -426,7 +426,7 @@ static int __devinit nuc900_spi_probe(struct platform_device *pdev) goto err_clk; } - mfp_set_groupg(&pdev->dev); + mfp_set_groupg(&pdev->dev, NULL); nuc900_init_spi(hw); err = spi_bitbang_start(&hw->bitbang); diff --git a/sound/soc/nuc900/nuc900-ac97.c b/sound/soc/nuc900/nuc900-ac97.c index 9c0edad90d8b..a4e3237956e2 100644 --- a/sound/soc/nuc900/nuc900-ac97.c +++ b/sound/soc/nuc900/nuc900-ac97.c @@ -365,7 +365,8 @@ static int __devinit nuc900_ac97_drvprobe(struct platform_device *pdev) if (ret) goto out3; - mfp_set_groupg(nuc900_audio->dev); /* enbale ac97 multifunction pin*/ + /* enbale ac97 multifunction pin */ + mfp_set_groupg(nuc900_audio->dev, "nuc900-audio"); return 0; From abdd7b91dab2f8b2e32e90e4b7e809ffb462a662 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 25 Nov 2011 17:58:19 +0100 Subject: [PATCH 168/207] ARM: 7176/1: cpu_pm: register GIC PM notifier only once When multiple GICs exist on a platform (RealView PB1176/11MP), we must make sure the PM notifier block is only registered once, otherwise we end up corrupting the PM notifier list. The fix is to only register the notifier when initializing the first GIC, as the power management functions seem to iterate over all the registered GICs. Tested on PB11MP and PB1176. Reported-by: Will Deacon Tested-by: Will Deacon Cc: Colin Cross Signed-off-by: Marc Zyngier Signed-off-by: Russell King --- arch/arm/common/gic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c index 0e6ae470c94f..43240f315dea 100644 --- a/arch/arm/common/gic.c +++ b/arch/arm/common/gic.c @@ -526,7 +526,8 @@ static void __init gic_pm_init(struct gic_chip_data *gic) sizeof(u32)); BUG_ON(!gic->saved_ppi_conf); - cpu_pm_register_notifier(&gic_notifier_block); + if (gic == &gic_data[0]) + cpu_pm_register_notifier(&gic_notifier_block); } #else static void __init gic_pm_init(struct gic_chip_data *gic) From fe41db7b3aca512e19b8ef4fbd5ad55545005d25 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 25 Nov 2011 19:23:36 +0100 Subject: [PATCH 169/207] ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation Commit 4294f8baa ("ARM: gic: add irq_domain support") defines irq_start as irq_start = (irq_start & ~31) + 16; On a platform with a GIC and a CPU without PPIs, this results in irq_start being off by 16. This patch fixes gic_init so that we only carve out a PPI space when PPIs exist for the GIC being initialised. Cc: Rob Herring Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/common/gic.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c index 43240f315dea..410a546060a2 100644 --- a/arch/arm/common/gic.c +++ b/arch/arm/common/gic.c @@ -582,13 +582,16 @@ void __init gic_init(unsigned int gic_nr, int irq_start, * For primary GICs, skip over SGIs. * For secondary GICs, skip over PPIs, too. */ + domain->hwirq_base = 32; if (gic_nr == 0) { gic_cpu_base_addr = cpu_base; - domain->hwirq_base = 16; - if (irq_start > 0) - irq_start = (irq_start & ~31) + 16; - } else - domain->hwirq_base = 32; + + if ((irq_start & 31) > 0) { + domain->hwirq_base = 16; + if (irq_start != -1) + irq_start = (irq_start & ~31) + 16; + } + } /* * Find out how many interrupts are supported. From 92bb43e6aae3dbdb199feba93da5f2d05d7716d0 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 24 Nov 2011 14:48:24 +0300 Subject: [PATCH 170/207] ALSA: hda - cut and paste typo in cs420x_models[] The CS420X_IMAC27 was copied from the line before but CS420X_APPLE was clearly intented. Signed-off-by: Dan Carpenter Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_cirrus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c index 7bd2a52f2bac..70a7abda7e22 100644 --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -1278,7 +1278,7 @@ static const char * const cs420x_models[CS420X_MODELS] = { [CS420X_MBP53] = "mbp53", [CS420X_MBP55] = "mbp55", [CS420X_IMAC27] = "imac27", - [CS420X_IMAC27] = "apple", + [CS420X_APPLE] = "apple", [CS420X_AUTO] = "auto", }; From 187d333edc0a8e1bb507900ce89853ffe3bd2c84 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 24 Nov 2011 16:33:09 +0100 Subject: [PATCH 171/207] ALSA: hda - Fix jack-detection control of VT1708 VT1708 has no support for unsolicited events per jack-plug, the driver implements the workq for polling the jack-detection. The mixer element "Jack Detect" was supposed to control this behavior on/off, but this doesn't work properly as is now. The workq is always started and the HP automute is always enabled. This patch fixes the jack-detect control behavior by triggering / stopping the work appropriately at the state change. Also the work checks the internal state to continue scheduling or not. Cc: [v3.1] Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_via.c | 80 ++++++++++++++++++++++----------------- 1 file changed, 45 insertions(+), 35 deletions(-) diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index 431c0d417eeb..b5137629f8e9 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -208,6 +208,7 @@ struct via_spec { /* work to check hp jack state */ struct hda_codec *codec; struct delayed_work vt1708_hp_work; + int hp_work_active; int vt1708_jack_detect; int vt1708_hp_present; @@ -305,27 +306,35 @@ enum { static void analog_low_current_mode(struct hda_codec *codec); static bool is_aa_path_mute(struct hda_codec *codec); -static void vt1708_start_hp_work(struct via_spec *spec) -{ - if (spec->codec_type != VT1708 || spec->autocfg.hp_pins[0] == 0) - return; - snd_hda_codec_write(spec->codec, 0x1, 0, 0xf81, - !spec->vt1708_jack_detect); - if (!delayed_work_pending(&spec->vt1708_hp_work)) - schedule_delayed_work(&spec->vt1708_hp_work, - msecs_to_jiffies(100)); -} +#define hp_detect_with_aa(codec) \ + (snd_hda_get_bool_hint(codec, "analog_loopback_hp_detect") == 1 && \ + !is_aa_path_mute(codec)) static void vt1708_stop_hp_work(struct via_spec *spec) { if (spec->codec_type != VT1708 || spec->autocfg.hp_pins[0] == 0) return; - if (snd_hda_get_bool_hint(spec->codec, "analog_loopback_hp_detect") == 1 - && !is_aa_path_mute(spec->codec)) + if (spec->hp_work_active) { + snd_hda_codec_write(spec->codec, 0x1, 0, 0xf81, 1); + cancel_delayed_work_sync(&spec->vt1708_hp_work); + spec->hp_work_active = 0; + } +} + +static void vt1708_update_hp_work(struct via_spec *spec) +{ + if (spec->codec_type != VT1708 || spec->autocfg.hp_pins[0] == 0) return; - snd_hda_codec_write(spec->codec, 0x1, 0, 0xf81, - !spec->vt1708_jack_detect); - cancel_delayed_work_sync(&spec->vt1708_hp_work); + if (spec->vt1708_jack_detect && + (spec->active_streams || hp_detect_with_aa(spec->codec))) { + if (!spec->hp_work_active) { + snd_hda_codec_write(spec->codec, 0x1, 0, 0xf81, 0); + schedule_delayed_work(&spec->vt1708_hp_work, + msecs_to_jiffies(100)); + spec->hp_work_active = 1; + } + } else if (!hp_detect_with_aa(spec->codec)) + vt1708_stop_hp_work(spec); } static void set_widgets_power_state(struct hda_codec *codec) @@ -343,12 +352,7 @@ static int analog_input_switch_put(struct snd_kcontrol *kcontrol, set_widgets_power_state(codec); analog_low_current_mode(snd_kcontrol_chip(kcontrol)); - if (snd_hda_get_bool_hint(codec, "analog_loopback_hp_detect") == 1) { - if (is_aa_path_mute(codec)) - vt1708_start_hp_work(codec->spec); - else - vt1708_stop_hp_work(codec->spec); - } + vt1708_update_hp_work(codec->spec); return change; } @@ -1154,7 +1158,7 @@ static int via_playback_multi_pcm_prepare(struct hda_pcm_stream *hinfo, spec->cur_dac_stream_tag = stream_tag; spec->cur_dac_format = format; mutex_unlock(&spec->config_mutex); - vt1708_start_hp_work(spec); + vt1708_update_hp_work(spec); return 0; } @@ -1174,7 +1178,7 @@ static int via_playback_hp_pcm_prepare(struct hda_pcm_stream *hinfo, spec->cur_hp_stream_tag = stream_tag; spec->cur_hp_format = format; mutex_unlock(&spec->config_mutex); - vt1708_start_hp_work(spec); + vt1708_update_hp_work(spec); return 0; } @@ -1188,7 +1192,7 @@ static int via_playback_multi_pcm_cleanup(struct hda_pcm_stream *hinfo, snd_hda_multi_out_analog_cleanup(codec, &spec->multiout); spec->active_streams &= ~STREAM_MULTI_OUT; mutex_unlock(&spec->config_mutex); - vt1708_stop_hp_work(spec); + vt1708_update_hp_work(spec); return 0; } @@ -1203,7 +1207,7 @@ static int via_playback_hp_pcm_cleanup(struct hda_pcm_stream *hinfo, snd_hda_codec_setup_stream(codec, spec->hp_dac_nid, 0, 0, 0); spec->active_streams &= ~STREAM_INDEP_HP; mutex_unlock(&spec->config_mutex); - vt1708_stop_hp_work(spec); + vt1708_update_hp_work(spec); return 0; } @@ -1645,7 +1649,8 @@ static void via_hp_automute(struct hda_codec *codec) int nums; struct via_spec *spec = codec->spec; - if (!spec->hp_independent_mode && spec->autocfg.hp_pins[0]) + if (!spec->hp_independent_mode && spec->autocfg.hp_pins[0] && + (spec->codec_type != VT1708 || spec->vt1708_jack_detect)) present = snd_hda_jack_detect(codec, spec->autocfg.hp_pins[0]); if (spec->smart51_enabled) @@ -2612,8 +2617,6 @@ static int vt1708_jack_detect_get(struct snd_kcontrol *kcontrol, if (spec->codec_type != VT1708) return 0; - spec->vt1708_jack_detect = - !((snd_hda_codec_read(codec, 0x1, 0, 0xf84, 0) >> 8) & 0x1); ucontrol->value.integer.value[0] = spec->vt1708_jack_detect; return 0; } @@ -2623,18 +2626,22 @@ static int vt1708_jack_detect_put(struct snd_kcontrol *kcontrol, { struct hda_codec *codec = snd_kcontrol_chip(kcontrol); struct via_spec *spec = codec->spec; - int change; + int val; if (spec->codec_type != VT1708) return 0; - spec->vt1708_jack_detect = ucontrol->value.integer.value[0]; - change = (0x1 & (snd_hda_codec_read(codec, 0x1, 0, 0xf84, 0) >> 8)) - == !spec->vt1708_jack_detect; - if (spec->vt1708_jack_detect) { + val = !!ucontrol->value.integer.value[0]; + if (spec->vt1708_jack_detect == val) + return 0; + spec->vt1708_jack_detect = val; + if (spec->vt1708_jack_detect && + snd_hda_get_bool_hint(codec, "analog_loopback_hp_detect") != 1) { mute_aa_path(codec, 1); notify_aa_path_ctls(codec); } - return change; + via_hp_automute(codec); + vt1708_update_hp_work(spec); + return 1; } static const struct snd_kcontrol_new vt1708_jack_detect_ctl = { @@ -2771,6 +2778,7 @@ static int via_init(struct hda_codec *codec) via_auto_init_unsol_event(codec); via_hp_automute(codec); + vt1708_update_hp_work(spec); return 0; } @@ -2787,7 +2795,9 @@ static void vt1708_update_hp_jack_state(struct work_struct *work) spec->vt1708_hp_present ^= 1; via_hp_automute(spec->codec); } - vt1708_start_hp_work(spec); + if (spec->vt1708_jack_detect) + schedule_delayed_work(&spec->vt1708_hp_work, + msecs_to_jiffies(100)); } static int get_mux_nids(struct hda_codec *codec) From 06718f151144aa5eea97cdf2813fe7eb70e73d17 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 26 Nov 2011 23:37:43 +0100 Subject: [PATCH 172/207] ath9k: Revert change that broke AR928X on Acer Ferrari One Revert a hunk in drivers/net/wireless/ath/ath9k/hw.c introduced by commit 2577c6e8f232 ("ath9k_hw: Add support for AR946/8x chipsets") that caused a nasty regression to appear on my Acer Ferrari One (the box locks up entirely at random times after the wireless has been started without any way to get debug information out of it). Signed-off-by: Rafael J. Wysocki Acked-by: Felix Fietkau Signed-off-by: Linus Torvalds --- drivers/net/wireless/ath/ath9k/hw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 2f91acccb7db..8873c6e6fb96 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1827,7 +1827,8 @@ static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip) } /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */ - REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE); + if (AR_SREV_9300_20_OR_LATER(ah)) + REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE); } /* From d4d6373c1109b11c8118340be97ae31b8f94d66a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 28 Nov 2011 14:06:31 +0800 Subject: [PATCH 173/207] regulator: aat2870: Fix the logic of checking if no id is matched in aat2870_get_regulator In current implementation, the pointer ri is not NULL if no id is matched. Fix it by checking i == ARRAY_SIZE(aat2870_regulators) if no id is matched. Signed-off-by: Axel Lin Signed-off-by: Mark Brown Cc: stable@kernel.org --- drivers/regulator/aat2870-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/aat2870-regulator.c b/drivers/regulator/aat2870-regulator.c index 5abeb3ac3e8d..298c6c6a2795 100644 --- a/drivers/regulator/aat2870-regulator.c +++ b/drivers/regulator/aat2870-regulator.c @@ -160,7 +160,7 @@ static struct aat2870_regulator *aat2870_get_regulator(int id) break; } - if (!ri) + if (i == ARRAY_SIZE(aat2870_regulators)) return NULL; ri->enable_addr = AAT2870_LDO_EN; From 58fb5cf5d1edb7e306574833ee55d732918c89e3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Mon, 28 Nov 2011 15:38:37 +0100 Subject: [PATCH 174/207] regulator: fix use after free bug MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is caused by dereferencing 'rdev' after device_unregister() in the regulator_unregister() function. 'rdev' is freed by device_unregister(), so it must not be dereferenced after this call. [Edited commit message for legibility -- broonie] Signed-off-by: Lothar Waßmann Signed-off-by: Mark Brown --- drivers/regulator/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 669d02160221..938398f3e869 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2799,8 +2799,8 @@ void regulator_unregister(struct regulator_dev *rdev) list_del(&rdev->list); if (rdev->supply) regulator_put(rdev->supply); - device_unregister(&rdev->dev); kfree(rdev->constraints); + device_unregister(&rdev->dev); mutex_unlock(®ulator_list_mutex); } EXPORT_SYMBOL_GPL(regulator_unregister); From 52553ddffad76ccf192d4dd9ce88d5818f57f62a Mon Sep 17 00:00:00 2001 From: Edward Donovan Date: Sun, 27 Nov 2011 23:07:34 -0500 Subject: [PATCH 175/207] genirq: fix regression in irqfixup, irqpoll MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit fa27271bc8d2("genirq: Fixup poll handling") introduced a regression that broke irqfixup/irqpoll for some hardware configurations. Amidst reorganizing 'try_one_irq', that patch removed a test that checked for 'action->handler' returning IRQ_HANDLED, before acting on the interrupt. Restoring this test back returns the functionality lost since 2.6.39. In the current set of tests, after 'action' is set, it must precede '!action->next' to take effect. With this and my previous patch to irq/spurious.c, c75d720fca8a, all IRQ regressions that I have encountered are fixed. Signed-off-by: Edward Donovan Reported-and-tested-by: Rogério Brito Cc: Thomas Gleixner Cc: stable@kernel.org (2.6.39+) Signed-off-by: Linus Torvalds --- kernel/irq/spurious.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c index b5f4742693c0..dc813a948be2 100644 --- a/kernel/irq/spurious.c +++ b/kernel/irq/spurious.c @@ -84,7 +84,9 @@ static int try_one_irq(int irq, struct irq_desc *desc, bool force) */ action = desc->action; if (!action || !(action->flags & IRQF_SHARED) || - (action->flags & __IRQF_TIMER) || !action->next) + (action->flags & __IRQF_TIMER) || + (action->handler(irq, action->dev_id) == IRQ_HANDLED) || + !action->next) goto out; /* Already running on another processor */ From ba305e31e88ea5c2f598ff9fbc5424711a429e30 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 28 Nov 2011 16:53:19 +0200 Subject: [PATCH 176/207] regulator: twl: fix twl4030 support for smps regulators SMPS regulator voltage control differs from the one of the LDO ones. Current TWL code was using LDO regulator ops for controlling the SMPS regulators, which fails. This was fixed fixed by adding separate regulator type which uses correct logic and calculations for the voltage levels. Signed-off-by: Tero Kristo Signed-off-by: Mark Brown Cc: stable@kernel.org --- drivers/regulator/twl-regulator.c | 46 +++++++++++++++++++++++++++++-- 1 file changed, 44 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index ee8747f4fa08..11cc308d66e9 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -71,6 +71,7 @@ struct twlreg_info { #define VREG_TYPE 1 #define VREG_REMAP 2 #define VREG_DEDICATED 3 /* LDO control */ +#define VREG_VOLTAGE_SMPS_4030 9 /* TWL6030 register offsets */ #define VREG_TRANS 1 #define VREG_STATE 2 @@ -514,6 +515,32 @@ static struct regulator_ops twl4030ldo_ops = { .get_status = twl4030reg_get_status, }; +static int +twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, + unsigned *selector) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + int vsel = DIV_ROUND_UP(min_uV - 600000, 12500); + + twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS_4030, + vsel); + return 0; +} + +static int twl4030smps_get_voltage(struct regulator_dev *rdev) +{ + struct twlreg_info *info = rdev_get_drvdata(rdev); + int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, + VREG_VOLTAGE_SMPS_4030); + + return vsel * 12500 + 600000; +} + +static struct regulator_ops twl4030smps_ops = { + .set_voltage = twl4030smps_set_voltage, + .get_voltage = twl4030smps_get_voltage, +}; + static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned index) { struct twlreg_info *info = rdev_get_drvdata(rdev); @@ -856,6 +883,21 @@ static struct regulator_ops twlsmps_ops = { }, \ } +#define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \ + { \ + .base = offset, \ + .id = num, \ + .delay = turnon_delay, \ + .remap = remap_conf, \ + .desc = { \ + .name = #label, \ + .id = TWL4030_REG_##label, \ + .ops = &twl4030smps_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + }, \ + } + #define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) { \ .base = offset, \ .min_mV = min_mVolts, \ @@ -947,8 +989,8 @@ static struct twlreg_info twl_regs[] = { TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08), TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08), TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08), - TWL4030_ADJUSTABLE_LDO(VDD1, 0x55, 15, 1000, 0x08), - TWL4030_ADJUSTABLE_LDO(VDD2, 0x63, 16, 1000, 0x08), + TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08), + TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08), TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08), TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08), TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08), From c34c97ad8c7c3cdacab2327235c2df4454ff1a06 Mon Sep 17 00:00:00 2001 From: Jonathan Lallinger Date: Thu, 20 Oct 2011 13:25:14 -0500 Subject: [PATCH 177/207] RDMA/cxgb4: Fix iw_cxgb4 count_rcqes() logic Fix another place in the code where logic dealing with the t4_cqe was using the wrong QID. This fixes the counting logic so that it tests against the SQ QID instead of the RQ QID when counting RCQES. Signed-off by: Jonathan Lallinger Signed-off by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb4/cq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c index f35a935267e7..0f1607c8325a 100644 --- a/drivers/infiniband/hw/cxgb4/cq.c +++ b/drivers/infiniband/hw/cxgb4/cq.c @@ -311,7 +311,7 @@ void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count) while (ptr != cq->sw_pidx) { cqe = &cq->sw_queue[ptr]; if (RQ_TYPE(cqe) && (CQE_OPCODE(cqe) != FW_RI_READ_RESP) && - (CQE_QPID(cqe) == wq->rq.qid) && cqe_completes_wr(cqe, wq)) + (CQE_QPID(cqe) == wq->sq.qid) && cqe_completes_wr(cqe, wq)) (*count)++; if (++ptr == cq->size) ptr = 0; From 01b225e18fcb540c5d615ca79ef832473451f118 Mon Sep 17 00:00:00 2001 From: Kumar Sanghvi Date: Mon, 28 Nov 2011 22:09:15 +0530 Subject: [PATCH 178/207] RDMA/cxgb4: Fix retry with MPAv1 logic for MPAv2 Fix logic so that we don't retry with MPAv1 once we have done that already. Otherwise, we end up retrying with MPAv1 even when its not needed on getting peer aborts - and this could lead to kernel panic. Signed-off-by: Kumar Sanghvi Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb4/cm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index b36cdac9c558..760b2fe29365 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -542,8 +542,10 @@ static void send_mpa_req(struct c4iw_ep *ep, struct sk_buff *skb, (mpa_rev_to_use == 2 ? MPA_ENHANCED_RDMA_CONN : 0); mpa->private_data_size = htons(ep->plen); mpa->revision = mpa_rev_to_use; - if (mpa_rev_to_use == 1) + if (mpa_rev_to_use == 1) { ep->tried_with_mpa_v1 = 1; + ep->retry_with_mpa_v1 = 0; + } if (mpa_rev_to_use == 2) { mpa->private_data_size += From 8ee887d74b3d741991edaa1836d22636c28926d9 Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Wed, 9 Nov 2011 17:07:22 -0500 Subject: [PATCH 179/207] IB/qib: Fix over-scheduling of QSFP work Don't over-schedule QSFP work on driver initialization. It could end up being run simultaneously on two different CPUs resulting in bad EEPROM reads. In combination with setting the physical IB link state prior to the IBC being brought out of reset, this can cause the link state machine to start training early with wrong settings. Signed-off-by: Mitko Haralanov Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- drivers/infiniband/hw/qib/qib_iba7322.c | 16 ++++++++-------- drivers/infiniband/hw/qib/qib_qsfp.c | 12 ------------ 2 files changed, 8 insertions(+), 20 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index 8b46b608c02f..1d5895941e19 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -2307,19 +2307,11 @@ static int qib_7322_bringup_serdes(struct qib_pportdata *ppd) SYM_LSB(IBCCtrlA_0, MaxPktLen); ppd->cpspec->ibcctrl_a = ibc; /* without linkcmd or linkinitcmd! */ - /* initially come up waiting for TS1, without sending anything. */ - val = ppd->cpspec->ibcctrl_a | (QLOGIC_IB_IBCC_LINKINITCMD_DISABLE << - QLOGIC_IB_IBCC_LINKINITCMD_SHIFT); - - ppd->cpspec->ibcctrl_a = val; /* * Reset the PCS interface to the serdes (and also ibc, which is still * in reset from above). Writes new value of ibcctrl_a as last step. */ qib_7322_mini_pcs_reset(ppd); - qib_write_kreg(dd, kr_scratch, 0ULL); - /* clear the linkinit cmds */ - ppd->cpspec->ibcctrl_a &= ~SYM_MASK(IBCCtrlA_0, LinkInitCmd); if (!ppd->cpspec->ibcctrl_b) { unsigned lse = ppd->link_speed_enabled; @@ -2385,6 +2377,14 @@ static int qib_7322_bringup_serdes(struct qib_pportdata *ppd) ppd->cpspec->ibcctrl_a |= SYM_MASK(IBCCtrlA_0, IBLinkEn); set_vls(ppd); + /* initially come up DISABLED, without sending anything. */ + val = ppd->cpspec->ibcctrl_a | (QLOGIC_IB_IBCC_LINKINITCMD_DISABLE << + QLOGIC_IB_IBCC_LINKINITCMD_SHIFT); + qib_write_kreg_port(ppd, krp_ibcctrl_a, val); + qib_write_kreg(dd, kr_scratch, 0ULL); + /* clear the linkinit cmds */ + ppd->cpspec->ibcctrl_a = val & ~SYM_MASK(IBCCtrlA_0, LinkInitCmd); + /* be paranoid against later code motion, etc. */ spin_lock_irqsave(&dd->cspec->rcvmod_lock, flags); ppd->p_rcvctrl |= SYM_MASK(RcvCtrl_0, RcvIBPortEnable); diff --git a/drivers/infiniband/hw/qib/qib_qsfp.c b/drivers/infiniband/hw/qib/qib_qsfp.c index e06c4ed383f1..fa71b1e666c5 100644 --- a/drivers/infiniband/hw/qib/qib_qsfp.c +++ b/drivers/infiniband/hw/qib/qib_qsfp.c @@ -480,18 +480,6 @@ void qib_qsfp_init(struct qib_qsfp_data *qd, udelay(20); /* Generous RST dwell */ dd->f_gpio_mod(dd, mask, mask, mask); - /* Spec says module can take up to two seconds! */ - mask = QSFP_GPIO_MOD_PRS_N; - if (qd->ppd->hw_pidx) - mask <<= QSFP_GPIO_PORT2_SHIFT; - - /* Do not try to wait here. Better to let event handle it */ - if (!qib_qsfp_mod_present(qd->ppd)) - goto bail; - /* We see a module, but it may be unwise to look yet. Just schedule */ - qd->t_insert = get_jiffies_64(); - queue_work(ib_wq, &qd->work); -bail: return; } From 5841eb6402707a387b216373e65c9c28e8136663 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 23 Nov 2011 21:18:39 +0100 Subject: [PATCH 180/207] PM / Domains: Document how PM domains are used by the PM core The current power management documentation in Documentation/power/ either doesn't cover PM domains at all, or gives inaccurate information about them, so update the relevant files in there to follow the code. Signed-off-by: Rafael J. Wysocki --- Documentation/power/devices.txt | 42 +++++++++++++++++++----------- Documentation/power/runtime_pm.txt | 29 +++++++++++++-------- 2 files changed, 45 insertions(+), 26 deletions(-) diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index 646a89e0c07d..4342acbeee10 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -123,9 +123,10 @@ please refer directly to the source code for more information about it. Subsystem-Level Methods ----------------------- The core methods to suspend and resume devices reside in struct dev_pm_ops -pointed to by the pm member of struct bus_type, struct device_type and -struct class. They are mostly of interest to the people writing infrastructure -for buses, like PCI or USB, or device type and device class drivers. +pointed to by the ops member of struct dev_pm_domain, or by the pm member of +struct bus_type, struct device_type and struct class. They are mostly of +interest to the people writing infrastructure for platforms and buses, like PCI +or USB, or device type and device class drivers. Bus drivers implement these methods as appropriate for the hardware and the drivers using it; PCI works differently from USB, and so on. Not many people @@ -251,18 +252,29 @@ various phases always run after tasks have been frozen and before they are unfrozen. Furthermore, the *_noirq phases run at a time when IRQ handlers have been disabled (except for those marked with the IRQ_WAKEUP flag). -All phases use bus, type, or class callbacks (that is, methods defined in -dev->bus->pm, dev->type->pm, or dev->class->pm). These callbacks are mutually -exclusive, so if the device type provides a struct dev_pm_ops object pointed to -by its pm field (i.e. both dev->type and dev->type->pm are defined), the -callbacks included in that object (i.e. dev->type->pm) will be used. Otherwise, -if the class provides a struct dev_pm_ops object pointed to by its pm field -(i.e. both dev->class and dev->class->pm are defined), the PM core will use the -callbacks from that object (i.e. dev->class->pm). Finally, if the pm fields of -both the device type and class objects are NULL (or those objects do not exist), -the callbacks provided by the bus (that is, the callbacks from dev->bus->pm) -will be used (this allows device types to override callbacks provided by bus -types or classes if necessary). +All phases use PM domain, bus, type, or class callbacks (that is, methods +defined in dev->pm_domain->ops, dev->bus->pm, dev->type->pm, or dev->class->pm). +These callbacks are regarded by the PM core as mutually exclusive. Moreover, +PM domain callbacks always take precedence over bus, type and class callbacks, +while type callbacks take precedence over bus and class callbacks, and class +callbacks take precedence over bus callbacks. To be precise, the following +rules are used to determine which callback to execute in the given phase: + + 1. If dev->pm_domain is present, the PM core will attempt to execute the + callback included in dev->pm_domain->ops. If that callback is not + present, no action will be carried out for the given device. + + 2. Otherwise, if both dev->type and dev->type->pm are present, the callback + included in dev->type->pm will be executed. + + 3. Otherwise, if both dev->class and dev->class->pm are present, the + callback included in dev->class->pm will be executed. + + 4. Otherwise, if both dev->bus and dev->bus->pm are present, the callback + included in dev->bus->pm will be executed. + +This allows PM domains and device types to override callbacks provided by bus +types or device classes if necessary. These callbacks may in turn invoke device- or driver-specific methods stored in dev->driver->pm, but they don't have to. diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index 5336149f831b..79b10a090c9f 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -44,17 +44,24 @@ struct dev_pm_ops { }; The ->runtime_suspend(), ->runtime_resume() and ->runtime_idle() callbacks -are executed by the PM core for either the power domain, or the device type -(if the device power domain's struct dev_pm_ops does not exist), or the class -(if the device power domain's and type's struct dev_pm_ops object does not -exist), or the bus type (if the device power domain's, type's and class' -struct dev_pm_ops objects do not exist) of the given device, so the priority -order of callbacks from high to low is that power domain callbacks, device -type callbacks, class callbacks and bus type callbacks, and the high priority -one will take precedence over low priority one. The bus type, device type and -class callbacks are referred to as subsystem-level callbacks in what follows, -and generally speaking, the power domain callbacks are used for representing -power domains within a SoC. +are executed by the PM core for the device's subsystem that may be either of +the following: + + 1. PM domain of the device, if the device's PM domain object, dev->pm_domain, + is present. + + 2. Device type of the device, if both dev->type and dev->type->pm are present. + + 3. Device class of the device, if both dev->class and dev->class->pm are + present. + + 4. Bus type of the device, if both dev->bus and dev->bus->pm are present. + +The PM core always checks which callback to use in the order given above, so the +priority order of callbacks from high to low is: PM domain, device type, class +and bus type. Moreover, the high-priority one will always take precedence over +a low-priority one. The PM domain, bus type, device type and class callbacks +are referred to as subsystem-level callbacks in what follows. By default, the callbacks are always invoked in process context with interrupts enabled. However, subsystems can use the pm_runtime_irq_safe() helper function From fa8ce723936460fcf7e49f508fd5dbd5125e39c4 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 23 Nov 2011 21:19:57 +0100 Subject: [PATCH 181/207] PM / Sleep: Correct inaccurate information in devices.txt The documentation file Documentation/power/devices.txt contains some information that isn't correct any more due to code modifications made after that file had been created (or updated last time). Fix this. Signed-off-by: Rafael J. Wysocki --- Documentation/power/devices.txt | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index 4342acbeee10..ed3228884133 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -250,7 +250,7 @@ for every device before the next phase begins. Not all busses or classes support all these callbacks and not all drivers use all the callbacks. The various phases always run after tasks have been frozen and before they are unfrozen. Furthermore, the *_noirq phases run at a time when IRQ handlers have -been disabled (except for those marked with the IRQ_WAKEUP flag). +been disabled (except for those marked with the IRQF_NO_SUSPEND flag). All phases use PM domain, bus, type, or class callbacks (that is, methods defined in dev->pm_domain->ops, dev->bus->pm, dev->type->pm, or dev->class->pm). @@ -295,9 +295,8 @@ When the system goes into the standby or memory sleep state, the phases are: After the prepare callback method returns, no new children may be registered below the device. The method may also prepare the device or - driver in some way for the upcoming system power transition (for - example, by allocating additional memory required for this purpose), but - it should not put the device into a low-power state. + driver in some way for the upcoming system power transition, but it + should not put the device into a low-power state. 2. The suspend methods should quiesce the device to stop it from performing I/O. They also may save the device registers and put it into the From 907565921966260921e4c4581ed8985ef4cf9a67 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 23 Nov 2011 21:20:07 +0100 Subject: [PATCH 182/207] PM / Runtime: Make documentation follow the new behavior of irq_safe The runtime PM core code behavior related to the power.irq_safe device flag has changed recently and the documentation should be modified to reflect it. Signed-off-by: Rafael J. Wysocki --- Documentation/power/runtime_pm.txt | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index 79b10a090c9f..c2ae8bf77d46 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -65,11 +65,12 @@ are referred to as subsystem-level callbacks in what follows. By default, the callbacks are always invoked in process context with interrupts enabled. However, subsystems can use the pm_runtime_irq_safe() helper function -to tell the PM core that a device's ->runtime_suspend() and ->runtime_resume() -callbacks should be invoked in atomic context with interrupts disabled. -This implies that these callback routines must not block or sleep, but it also -means that the synchronous helper functions listed at the end of Section 4 can -be used within an interrupt handler or in an atomic context. +to tell the PM core that their ->runtime_suspend(), ->runtime_resume() and +->runtime_idle() callbacks may be invoked in atomic context with interrupts +disabled for a given device. This implies that the callback routines in +question must not block or sleep, but it also means that the synchronous helper +functions listed at the end of Section 4 may be used for that device within an +interrupt handler or generally in an atomic context. The subsystem-level suspend callback is _entirely_ _responsible_ for handling the suspend of the device as appropriate, which may, but need not include From fafba48d4dd6fcbb1fd7ac4ab0ba22ef45b9796c Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 23 Nov 2011 21:20:15 +0100 Subject: [PATCH 183/207] PM / Sleep: Update documentation related to system wakeup The system wakeup section of Documentation/power/devices.txt is outdated, so make it agree with the current code. Signed-off-by: Rafael J. Wysocki --- Documentation/power/devices.txt | 56 +++++++++++++++++++++------------ 1 file changed, 36 insertions(+), 20 deletions(-) diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index ed3228884133..3139fb505dce 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -140,41 +140,57 @@ sequencing in the driver model tree. /sys/devices/.../power/wakeup files ----------------------------------- -All devices in the driver model have two flags to control handling of wakeup -events (hardware signals that can force the device and/or system out of a low -power state). These flags are initialized by bus or device driver code using +All device objects in the driver model contain fields that control the handling +of system wakeup events (hardware signals that can force the system out of a +sleep state). These fields are initialized by bus or device driver code using device_set_wakeup_capable() and device_set_wakeup_enable(), defined in include/linux/pm_wakeup.h. -The "can_wakeup" flag just records whether the device (and its driver) can +The "power.can_wakeup" flag just records whether the device (and its driver) can physically support wakeup events. The device_set_wakeup_capable() routine -affects this flag. The "should_wakeup" flag controls whether the device should -try to use its wakeup mechanism. device_set_wakeup_enable() affects this flag; -for the most part drivers should not change its value. The initial value of -should_wakeup is supposed to be false for the majority of devices; the major -exceptions are power buttons, keyboards, and Ethernet adapters whose WoL -(wake-on-LAN) feature has been set up with ethtool. It should also default -to true for devices that don't generate wakeup requests on their own but merely -forward wakeup requests from one bus to another (like PCI bridges). +affects this flag. The "power.wakeup" field is a pointer to an object of type +struct wakeup_source used for controlling whether or not the device should use +its system wakeup mechanism and for notifying the PM core of system wakeup +events signaled by the device. This object is only present for wakeup-capable +devices (i.e. devices whose "can_wakeup" flags are set) and is created (or +removed) by device_set_wakeup_capable(). Whether or not a device is capable of issuing wakeup events is a hardware matter, and the kernel is responsible for keeping track of it. By contrast, whether or not a wakeup-capable device should issue wakeup events is a policy decision, and it is managed by user space through a sysfs attribute: the -power/wakeup file. User space can write the strings "enabled" or "disabled" to -set or clear the "should_wakeup" flag, respectively. This file is only present -for wakeup-capable devices (i.e. devices whose "can_wakeup" flags are set) -and is created (or removed) by device_set_wakeup_capable(). Reads from the -file will return the corresponding string. +"power/wakeup" file. User space can write the strings "enabled" or "disabled" +to it to indicate whether or not, respectively, the device is supposed to signal +system wakeup. This file is only present if the "power.wakeup" object exists +for the given device and is created (or removed) along with that object, by +device_set_wakeup_capable(). Reads from the file will return the corresponding +string. -The device_may_wakeup() routine returns true only if both flags are set. +The "power/wakeup" file is supposed to contain the "disabled" string initially +for the majority of devices; the major exceptions are power buttons, keyboards, +and Ethernet adapters whose WoL (wake-on-LAN) feature has been set up with +ethtool. It should also default to "enabled" for devices that don't generate +wakeup requests on their own but merely forward wakeup requests from one bus to +another (like PCI Express ports). + +The device_may_wakeup() routine returns true only if the "power.wakeup" object +exists and the corresponding "power/wakeup" file contains the string "enabled". This information is used by subsystems, like the PCI bus type code, to see whether or not to enable the devices' wakeup mechanisms. If device wakeup mechanisms are enabled or disabled directly by drivers, they also should use device_may_wakeup() to decide what to do during a system sleep transition. -However for runtime power management, wakeup events should be enabled whenever -the device and driver both support them, regardless of the should_wakeup flag. +Device drivers, however, are not supposed to call device_set_wakeup_enable() +directly in any case. +It ought to be noted that system wakeup is conceptually different from "remote +wakeup" used by runtime power management, although it may be supported by the +same physical mechanism. Remote wakeup is a feature allowing devices in +low-power states to trigger specific interrupts to signal conditions in which +they should be put into the full-power state. Those interrupts may or may not +be used to signal system wakeup events, depending on the hardware design. On +some systems it is impossible to trigger them from system sleep states. In any +case, remote wakeup should always be enabled for runtime power management for +all devices and drivers that support it. /sys/devices/.../power/control files ------------------------------------ From f7bc83d87d242917ca0ee041ed509f57f361dd56 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 23 Nov 2011 21:20:32 +0100 Subject: [PATCH 184/207] PM: Update comments describing device power management callbacks The comments describing device power management callbacks in include/pm.h are outdated and somewhat confusing, so make them reflect the reality more accurately. Signed-off-by: Rafael J. Wysocki --- include/linux/pm.h | 215 ++++++++++++++++++++++++++------------------- 1 file changed, 127 insertions(+), 88 deletions(-) diff --git a/include/linux/pm.h b/include/linux/pm.h index 5c4c8b18c8b7..3f3ed83a9aa5 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -54,118 +54,145 @@ typedef struct pm_message { /** * struct dev_pm_ops - device PM callbacks * - * Several driver power state transitions are externally visible, affecting + * Several device power state transitions are externally visible, affecting * the state of pending I/O queues and (for drivers that touch hardware) * interrupts, wakeups, DMA, and other hardware state. There may also be - * internal transitions to various low power modes, which are transparent + * internal transitions to various low-power modes which are transparent * to the rest of the driver stack (such as a driver that's ON gating off * clocks which are not in active use). * - * The externally visible transitions are handled with the help of the following - * callbacks included in this structure: + * The externally visible transitions are handled with the help of callbacks + * included in this structure in such a way that two levels of callbacks are + * involved. First, the PM core executes callbacks provided by PM domains, + * device types, classes and bus types. They are the subsystem-level callbacks + * supposed to execute callbacks provided by device drivers, although they may + * choose not to do that. If the driver callbacks are executed, they have to + * collaborate with the subsystem-level callbacks to achieve the goals + * appropriate for the given system transition, given transition phase and the + * subsystem the device belongs to. * - * @prepare: Prepare the device for the upcoming transition, but do NOT change - * its hardware state. Prevent new children of the device from being - * registered after @prepare() returns (the driver's subsystem and - * generally the rest of the kernel is supposed to prevent new calls to the - * probe method from being made too once @prepare() has succeeded). If - * @prepare() detects a situation it cannot handle (e.g. registration of a - * child already in progress), it may return -EAGAIN, so that the PM core - * can execute it once again (e.g. after the new child has been registered) - * to recover from the race condition. This method is executed for all - * kinds of suspend transitions and is followed by one of the suspend - * callbacks: @suspend(), @freeze(), or @poweroff(). - * The PM core executes @prepare() for all devices before starting to - * execute suspend callbacks for any of them, so drivers may assume all of - * the other devices to be present and functional while @prepare() is being - * executed. In particular, it is safe to make GFP_KERNEL memory - * allocations from within @prepare(). However, drivers may NOT assume - * anything about the availability of the user space at that time and it - * is not correct to request firmware from within @prepare() (it's too - * late to do that). [To work around this limitation, drivers may - * register suspend and hibernation notifiers that are executed before the - * freezing of tasks.] + * @prepare: The principal role of this callback is to prevent new children of + * the device from being registered after it has returned (the driver's + * subsystem and generally the rest of the kernel is supposed to prevent + * new calls to the probe method from being made too once @prepare() has + * succeeded). If @prepare() detects a situation it cannot handle (e.g. + * registration of a child already in progress), it may return -EAGAIN, so + * that the PM core can execute it once again (e.g. after a new child has + * been registered) to recover from the race condition. + * This method is executed for all kinds of suspend transitions and is + * followed by one of the suspend callbacks: @suspend(), @freeze(), or + * @poweroff(). The PM core executes subsystem-level @prepare() for all + * devices before starting to invoke suspend callbacks for any of them, so + * generally devices may be assumed to be functional or to respond to + * runtime resume requests while @prepare() is being executed. However, + * device drivers may NOT assume anything about the availability of user + * space at that time and it is NOT valid to request firmware from within + * @prepare() (it's too late to do that). It also is NOT valid to allocate + * substantial amounts of memory from @prepare() in the GFP_KERNEL mode. + * [To work around these limitations, drivers may register suspend and + * hibernation notifiers to be executed before the freezing of tasks.] * * @complete: Undo the changes made by @prepare(). This method is executed for * all kinds of resume transitions, following one of the resume callbacks: * @resume(), @thaw(), @restore(). Also called if the state transition - * fails before the driver's suspend callback (@suspend(), @freeze(), - * @poweroff()) can be executed (e.g. if the suspend callback fails for one + * fails before the driver's suspend callback: @suspend(), @freeze() or + * @poweroff(), can be executed (e.g. if the suspend callback fails for one * of the other devices that the PM core has unsuccessfully attempted to * suspend earlier). - * The PM core executes @complete() after it has executed the appropriate - * resume callback for all devices. + * The PM core executes subsystem-level @complete() after it has executed + * the appropriate resume callbacks for all devices. * * @suspend: Executed before putting the system into a sleep state in which the - * contents of main memory are preserved. Quiesce the device, put it into - * a low power state appropriate for the upcoming system state (such as - * PCI_D3hot), and enable wakeup events as appropriate. + * contents of main memory are preserved. The exact action to perform + * depends on the device's subsystem (PM domain, device type, class or bus + * type), but generally the device must be quiescent after subsystem-level + * @suspend() has returned, so that it doesn't do any I/O or DMA. + * Subsystem-level @suspend() is executed for all devices after invoking + * subsystem-level @prepare() for all of them. * * @resume: Executed after waking the system up from a sleep state in which the - * contents of main memory were preserved. Put the device into the - * appropriate state, according to the information saved in memory by the - * preceding @suspend(). The driver starts working again, responding to - * hardware events and software requests. The hardware may have gone - * through a power-off reset, or it may have maintained state from the - * previous suspend() which the driver may rely on while resuming. On most - * platforms, there are no restrictions on availability of resources like - * clocks during @resume(). + * contents of main memory were preserved. The exact action to perform + * depends on the device's subsystem, but generally the driver is expected + * to start working again, responding to hardware events and software + * requests (the device itself may be left in a low-power state, waiting + * for a runtime resume to occur). The state of the device at the time its + * driver's @resume() callback is run depends on the platform and subsystem + * the device belongs to. On most platforms, there are no restrictions on + * availability of resources like clocks during @resume(). + * Subsystem-level @resume() is executed for all devices after invoking + * subsystem-level @resume_noirq() for all of them. * * @freeze: Hibernation-specific, executed before creating a hibernation image. - * Quiesce operations so that a consistent image can be created, but do NOT - * otherwise put the device into a low power device state and do NOT emit - * system wakeup events. Save in main memory the device settings to be - * used by @restore() during the subsequent resume from hibernation or by - * the subsequent @thaw(), if the creation of the image or the restoration - * of main memory contents from it fails. + * Analogous to @suspend(), but it should not enable the device to signal + * wakeup events or change its power state. The majority of subsystems + * (with the notable exception of the PCI bus type) expect the driver-level + * @freeze() to save the device settings in memory to be used by @restore() + * during the subsequent resume from hibernation. + * Subsystem-level @freeze() is executed for all devices after invoking + * subsystem-level @prepare() for all of them. * * @thaw: Hibernation-specific, executed after creating a hibernation image OR - * if the creation of the image fails. Also executed after a failing + * if the creation of an image has failed. Also executed after a failing * attempt to restore the contents of main memory from such an image. * Undo the changes made by the preceding @freeze(), so the device can be * operated in the same way as immediately before the call to @freeze(). + * Subsystem-level @thaw() is executed for all devices after invoking + * subsystem-level @thaw_noirq() for all of them. It also may be executed + * directly after @freeze() in case of a transition error. * * @poweroff: Hibernation-specific, executed after saving a hibernation image. - * Quiesce the device, put it into a low power state appropriate for the - * upcoming system state (such as PCI_D3hot), and enable wakeup events as - * appropriate. + * Analogous to @suspend(), but it need not save the device's settings in + * memory. + * Subsystem-level @poweroff() is executed for all devices after invoking + * subsystem-level @prepare() for all of them. * * @restore: Hibernation-specific, executed after restoring the contents of main - * memory from a hibernation image. Driver starts working again, - * responding to hardware events and software requests. Drivers may NOT - * make ANY assumptions about the hardware state right prior to @restore(). - * On most platforms, there are no restrictions on availability of - * resources like clocks during @restore(). + * memory from a hibernation image, analogous to @resume(). * - * @suspend_noirq: Complete the operations of ->suspend() by carrying out any - * actions required for suspending the device that need interrupts to be - * disabled + * @suspend_noirq: Complete the actions started by @suspend(). Carry out any + * additional operations required for suspending the device that might be + * racing with its driver's interrupt handler, which is guaranteed not to + * run while @suspend_noirq() is being executed. + * It generally is expected that the device will be in a low-power state + * (appropriate for the target system sleep state) after subsystem-level + * @suspend_noirq() has returned successfully. If the device can generate + * system wakeup signals and is enabled to wake up the system, it should be + * configured to do so at that time. However, depending on the platform + * and device's subsystem, @suspend() may be allowed to put the device into + * the low-power state and configure it to generate wakeup signals, in + * which case it generally is not necessary to define @suspend_noirq(). * - * @resume_noirq: Prepare for the execution of ->resume() by carrying out any - * actions required for resuming the device that need interrupts to be - * disabled + * @resume_noirq: Prepare for the execution of @resume() by carrying out any + * operations required for resuming the device that might be racing with + * its driver's interrupt handler, which is guaranteed not to run while + * @resume_noirq() is being executed. * - * @freeze_noirq: Complete the operations of ->freeze() by carrying out any - * actions required for freezing the device that need interrupts to be - * disabled + * @freeze_noirq: Complete the actions started by @freeze(). Carry out any + * additional operations required for freezing the device that might be + * racing with its driver's interrupt handler, which is guaranteed not to + * run while @freeze_noirq() is being executed. + * The power state of the device should not be changed by either @freeze() + * or @freeze_noirq() and it should not be configured to signal system + * wakeup by any of these callbacks. * - * @thaw_noirq: Prepare for the execution of ->thaw() by carrying out any - * actions required for thawing the device that need interrupts to be - * disabled + * @thaw_noirq: Prepare for the execution of @thaw() by carrying out any + * operations required for thawing the device that might be racing with its + * driver's interrupt handler, which is guaranteed not to run while + * @thaw_noirq() is being executed. * - * @poweroff_noirq: Complete the operations of ->poweroff() by carrying out any - * actions required for handling the device that need interrupts to be - * disabled + * @poweroff_noirq: Complete the actions started by @poweroff(). Analogous to + * @suspend_noirq(), but it need not save the device's settings in memory. * - * @restore_noirq: Prepare for the execution of ->restore() by carrying out any - * actions required for restoring the operations of the device that need - * interrupts to be disabled + * @restore_noirq: Prepare for the execution of @restore() by carrying out any + * operations required for thawing the device that might be racing with its + * driver's interrupt handler, which is guaranteed not to run while + * @restore_noirq() is being executed. Analogous to @resume_noirq(). * * All of the above callbacks, except for @complete(), return error codes. * However, the error codes returned by the resume operations, @resume(), - * @thaw(), @restore(), @resume_noirq(), @thaw_noirq(), and @restore_noirq() do + * @thaw(), @restore(), @resume_noirq(), @thaw_noirq(), and @restore_noirq(), do * not cause the PM core to abort the resume transition during which they are - * returned. The error codes returned in that cases are only printed by the PM + * returned. The error codes returned in those cases are only printed by the PM * core to the system logs for debugging purposes. Still, it is recommended * that drivers only return error codes from their resume methods in case of an * unrecoverable failure (i.e. when the device being handled refuses to resume @@ -174,31 +201,43 @@ typedef struct pm_message { * their children. * * It is allowed to unregister devices while the above callbacks are being - * executed. However, it is not allowed to unregister a device from within any - * of its own callbacks. + * executed. However, a callback routine must NOT try to unregister the device + * it was called for, although it may unregister children of that device (for + * example, if it detects that a child was unplugged while the system was + * asleep). * - * There also are the following callbacks related to run-time power management - * of devices: + * Refer to Documentation/power/devices.txt for more information about the role + * of the above callbacks in the system suspend process. + * + * There also are callbacks related to runtime power management of devices. + * Again, these callbacks are executed by the PM core only for subsystems + * (PM domains, device types, classes and bus types) and the subsystem-level + * callbacks are supposed to invoke the driver callbacks. Moreover, the exact + * actions to be performed by a device driver's callbacks generally depend on + * the platform and subsystem the device belongs to. * * @runtime_suspend: Prepare the device for a condition in which it won't be * able to communicate with the CPU(s) and RAM due to power management. - * This need not mean that the device should be put into a low power state. + * This need not mean that the device should be put into a low-power state. * For example, if the device is behind a link which is about to be turned * off, the device may remain at full power. If the device does go to low - * power and is capable of generating run-time wake-up events, remote - * wake-up (i.e., a hardware mechanism allowing the device to request a - * change of its power state via a wake-up event, such as PCI PME) should - * be enabled for it. + * power and is capable of generating runtime wakeup events, remote wakeup + * (i.e., a hardware mechanism allowing the device to request a change of + * its power state via an interrupt) should be enabled for it. * * @runtime_resume: Put the device into the fully active state in response to a - * wake-up event generated by hardware or at the request of software. If - * necessary, put the device into the full power state and restore its + * wakeup event generated by hardware or at the request of software. If + * necessary, put the device into the full-power state and restore its * registers, so that it is fully operational. * - * @runtime_idle: Device appears to be inactive and it might be put into a low - * power state if all of the necessary conditions are satisfied. Check + * @runtime_idle: Device appears to be inactive and it might be put into a + * low-power state if all of the necessary conditions are satisfied. Check * these conditions and handle the device as appropriate, possibly queueing * a suspend request for it. The return value is ignored by the PM core. + * + * Refer to Documentation/power/runtime_pm.txt for more information about the + * role of the above callbacks in device runtime power management. + * */ struct dev_pm_ops { From eee628da2ee3cbba6f14696278c92a464239eea6 Mon Sep 17 00:00:00 2001 From: Christoph Fritz Date: Mon, 28 Nov 2011 23:49:33 +0100 Subject: [PATCH 185/207] efivars: add missing parameter to efi_pstore_read() In the case where CONFIG_PSTORE=n, the function efi_pstore_read() doesn't have the correct list of parameters. This patch provides a definition of efi_pstore_read() with 'char **buf' added to fix this warning: "drivers/firmware/efivars.c:609: warning: initialization from". problem introduced in commit f6f8285132907757ef84ef8dae0a1244b8cde6ac Signed-off-by: Christoph Fritz Signed-off-by: Tony Luck --- drivers/firmware/efivars.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index a54a6b972ced..b0a81173a268 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -581,7 +581,8 @@ static int efi_pstore_close(struct pstore_info *psi) } static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type, - struct timespec *time, struct pstore_info *psi) + struct timespec *timespec, + char **buf, struct pstore_info *psi) { return -1; } From 58aa4ebe9c718f77f2003a9f815e070bdb4bff5e Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 16 Nov 2011 20:44:13 +0100 Subject: [PATCH 186/207] ARM: u300: update defconfig This updates the U300 defconfig to support some new drivers like FSMC, sets it to use the MMC clock gating scheme, and removes some stale config options. Signed-off-by: Linus Walleij --- arch/arm/configs/u300_defconfig | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/arm/configs/u300_defconfig b/arch/arm/configs/u300_defconfig index 4a5a12681be2..374000ec4e4e 100644 --- a/arch/arm/configs/u300_defconfig +++ b/arch/arm/configs/u300_defconfig @@ -14,8 +14,6 @@ CONFIG_MODULE_UNLOAD=y CONFIG_ARCH_U300=y CONFIG_MACH_U300=y CONFIG_MACH_U300_BS335=y -CONFIG_MACH_U300_DUAL_RAM=y -CONFIG_U300_DEBUG=y CONFIG_MACH_U300_SPIDUMMY=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y @@ -26,19 +24,21 @@ CONFIG_ZBOOT_ROM_BSS=0x0 CONFIG_CMDLINE="root=/dev/ram0 rw rootfstype=rootfs console=ttyAMA0,115200n8 lpj=515072" CONFIG_CPU_IDLE=y CONFIG_FPE_NWFPE=y -CONFIG_PM=y # CONFIG_SUSPEND is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set -# CONFIG_MISC_DEVICES is not set +CONFIG_MTD=y +CONFIG_MTD_CMDLINE_PARTS=y +CONFIG_MTD_NAND=y +CONFIG_MTD_NAND_FSMC=y # CONFIG_INPUT_MOUSEDEV is not set CONFIG_INPUT_EVDEV=y # CONFIG_KEYBOARD_ATKBD is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_SERIO is not set +CONFIG_LEGACY_PTY_COUNT=16 CONFIG_SERIAL_AMBA_PL011=y CONFIG_SERIAL_AMBA_PL011_CONSOLE=y -CONFIG_LEGACY_PTY_COUNT=16 # CONFIG_HW_RANDOM is not set CONFIG_I2C=y # CONFIG_HWMON is not set @@ -51,6 +51,7 @@ CONFIG_BACKLIGHT_CLASS_DEVICE=y # CONFIG_HID_SUPPORT is not set # CONFIG_USB_SUPPORT is not set CONFIG_MMC=y +CONFIG_MMC_CLKGATE=y CONFIG_MMC_ARMMMCI=y CONFIG_RTC_CLASS=y # CONFIG_RTC_HCTOSYS is not set @@ -65,10 +66,8 @@ CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_ISO8859_1=y CONFIG_PRINTK_TIME=y CONFIG_DEBUG_FS=y -CONFIG_DEBUG_KERNEL=y # CONFIG_SCHED_DEBUG is not set CONFIG_TIMER_STATS=y # CONFIG_DEBUG_PREEMPT is not set CONFIG_DEBUG_INFO=y -# CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_CRC32 is not set From 6e2a587eb99267367409097b70cb2d61b09e5269 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 16 Nov 2011 20:30:35 +0100 Subject: [PATCH 187/207] ARM: ux500: update defconfig This updates the Ux500 defconfig with the new drivers for HWSEM and AB5500 core that were merged in the 3.2 cycle. Signed-off-by: Linus Walleij --- arch/arm/configs/u8500_defconfig | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index 97d31a4663da..2d7b6e7b7271 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -10,7 +10,7 @@ CONFIG_MODULE_UNLOAD=y CONFIG_ARCH_U8500=y CONFIG_UX500_SOC_DB5500=y CONFIG_UX500_SOC_DB8500=y -CONFIG_MACH_U8500=y +CONFIG_MACH_HREFV60=y CONFIG_MACH_SNOWBALL=y CONFIG_MACH_U5500=y CONFIG_NO_HZ=y @@ -24,6 +24,7 @@ CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_VFP=y CONFIG_NEON=y +CONFIG_PM_RUNTIME=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y @@ -41,11 +42,8 @@ CONFIG_MISC_DEVICES=y CONFIG_AB8500_PWM=y CONFIG_SENSORS_BH1780=y CONFIG_NETDEVICES=y -CONFIG_SMSC_PHY=y -CONFIG_NET_ETHERNET=y CONFIG_SMSC911X=y -# CONFIG_NETDEV_1000 is not set -# CONFIG_NETDEV_10000 is not set +CONFIG_SMSC_PHY=y # CONFIG_WLAN is not set # CONFIG_INPUT_MOUSEDEV_PSAUX is not set CONFIG_INPUT_EVDEV=y @@ -72,15 +70,12 @@ CONFIG_SPI=y CONFIG_SPI_PL022=y CONFIG_GPIO_STMPE=y CONFIG_GPIO_TC3589X=y -# CONFIG_HWMON is not set CONFIG_MFD_STMPE=y CONFIG_MFD_TC3589X=y +CONFIG_AB5500_CORE=y CONFIG_AB8500_CORE=y CONFIG_REGULATOR_AB8500=y # CONFIG_HID_SUPPORT is not set -CONFIG_USB_MUSB_HDRC=y -CONFIG_USB_GADGET_MUSB_HDRC=y -CONFIG_MUSB_PIO_ONLY=y CONFIG_USB_GADGET=y CONFIG_AB8500_USB=y CONFIG_MMC=y @@ -97,6 +92,7 @@ CONFIG_DMADEVICES=y CONFIG_STE_DMA40=y CONFIG_STAGING=y CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4=y +CONFIG_HSEM_U8500=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y From d7fb6d0adb86ed1c5290e754092a5a1e3de76ee9 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Sun, 27 Nov 2011 20:16:33 -0600 Subject: [PATCH 188/207] of/irq: of_irq_init: add check for parent equal to child node With the revert of "of/irq: of_irq_find_parent: check for parent equal to child" (dc9372808412edb), we need another way to handle parent node equal to the child node. This can simply be handled in of_irq_init by checking for this condition. Signed-off-by: Rob Herring Tested-by: Pawel Moll Tested-by: Stephen Warren --- drivers/of/irq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 791270b8bd1c..19c0115092dd 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -424,6 +424,8 @@ void __init of_irq_init(const struct of_device_id *matches) desc->dev = np; desc->interrupt_parent = of_irq_find_parent(np); + if (desc->interrupt_parent == np) + desc->interrupt_parent = NULL; list_add_tail(&desc->list, &intc_desc_list); } From e43fce14088d9910b545c30c9a7127deb289d477 Mon Sep 17 00:00:00 2001 From: Pawel Moll Date: Tue, 8 Nov 2011 11:35:20 +0000 Subject: [PATCH 189/207] of: Add Silicon Image vendor prefix "sil" is the most commonly used abbreviation for Silicon Image products. Signed-off-by: Pawel Moll --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index e8552782b440..874921e97802 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -33,6 +33,7 @@ qcom Qualcomm, Inc. ramtron Ramtron International samsung Samsung Semiconductor schindler Schindler +sil Silicon Image simtek sirf SiRF Technology, Inc. stericsson ST-Ericsson From 3874397c0bdec3c21ce071711cd105165179b8eb Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Mon, 21 Nov 2011 08:43:54 -0500 Subject: [PATCH 190/207] IB/ipoib: Prevent hung task or softlockup processing multicast response This following can occur with ipoib when processing a multicast reponse: BUG: soft lockup - CPU#0 stuck for 67s! [ib_mad1:982] Modules linked in: ... CPU 0: Modules linked in: ... Pid: 982, comm: ib_mad1 Not tainted 2.6.32-131.0.15.el6.x86_64 #1 ProLiant DL160 G5 RIP: 0010:[] [] _spin_unlock_irqrestore+0x17/0x20 RSP: 0018:ffff8802119ed860 EFLAGS: 00000246 0000000000000004 RBX: ffff8802119ed860 RCX: 000000000000a299 RDX: ffff88021086c700 RSI: 0000000000000246 RDI: 0000000000000246 RBP: ffffffff8100bc8e R08: ffff880210ac229c R09: 0000000000000000 R10: ffff88021278aab8 R11: 0000000000000000 R12: ffff8802119ed860 R13: ffffffff8100be6e R14: 0000000000000001 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff880028200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 00000000006d4840 CR3: 0000000209aa5000 CR4: 00000000000406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: [] ? ipoib_mcast_send+0x157/0x480 [ib_ipoib] [] ? apic_timer_interrupt+0xe/0x20 [] ? apic_timer_interrupt+0xe/0x20 [] ? ipoib_path_lookup+0x124/0x2d0 [ib_ipoib] [] ? ipoib_start_xmit+0x17c/0x430 [ib_ipoib] [] ? dev_hard_start_xmit+0x2c8/0x3f0 [] ? sch_direct_xmit+0x15a/0x1c0 [] ? dev_queue_xmit+0x388/0x4d0 [] ? ipoib_mcast_join_finish+0x2c7/0x510 [ib_ipoib] [] ? ipoib_mcast_sendonly_join_complete+0x1b8/0x1f0 [ib_ipoib] [] ? mcast_work_handler+0x1a6/0x710 [ib_sa] [] ? ib_send_mad+0xfe/0x3c0 [ib_mad] [] ? ib_get_cached_lmc+0xa3/0xb0 [ib_core] [] ? join_handler+0xeb/0x200 [ib_sa] [] ? ib_sa_mcmember_rec_callback+0x5c/0xa0 [ib_sa] [] ? recv_handler+0x3c/0x70 [ib_sa] [] ? ib_mad_completion_handler+0x844/0x9d0 [ib_mad] [] ? ib_mad_completion_handler+0x0/0x9d0 [ib_mad] [] ? worker_thread+0x170/0x2a0 [] ? autoremove_wake_function+0x0/0x40 [] ? worker_thread+0x0/0x2a0 [] ? kthread+0x96/0xa0 [] ? child_rip+0xa/0x20 Coinciding with stack trace is the following message: ib0: ib_address_create failed The code below in ipoib_mcast_join_finish() will note the above failure in the address handle but otherwise continue: ah = ipoib_create_ah(dev, priv->pd, &av); if (!ah) { ipoib_warn(priv, "ib_address_create failed\n"); } else { The while loop at the bottom of ipoib_mcast_join_finish() will attempt to send queued multicast packets in mcast->pkt_queue and eventually end up in ipoib_mcast_send(): if (!mcast->ah) { if (skb_queue_len(&mcast->pkt_queue) < IPOIB_MAX_MCAST_QUEUE) skb_queue_tail(&mcast->pkt_queue, skb); else { ++dev->stats.tx_dropped; dev_kfree_skb_any(skb); } My read is that the code will requeue the packet and return to the ipoib_mcast_join_finish() while loop and the stage is set for the "hung" task diagnostic as the while loop never sees a non-NULL ah, and will do nothing to resolve. There are GFP_ATOMIC allocates in the provider routines, so this is possible and should be dealt with. The test that induced the failure is associated with a host SM on the same server during a shutdown. This patch causes ipoib_mcast_join_finish() to exit with an error which will flush the queued mcast packets. Nothing is done to unwind the QP attached state so that subsequent sends from above will retry the join. Reviewed-by: Ram Vepa Reviewed-by: Gary Leshner Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_ib.c | 13 ++++++++----- drivers/infiniband/ulp/ipoib/ipoib_main.c | 2 +- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 7 +++++-- 3 files changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 0ef9af94997d..4115be54ba3b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -57,21 +57,24 @@ struct ipoib_ah *ipoib_create_ah(struct net_device *dev, struct ib_pd *pd, struct ib_ah_attr *attr) { struct ipoib_ah *ah; + struct ib_ah *vah; ah = kmalloc(sizeof *ah, GFP_KERNEL); if (!ah) - return NULL; + return ERR_PTR(-ENOMEM); ah->dev = dev; ah->last_send = 0; kref_init(&ah->ref); - ah->ah = ib_create_ah(pd, attr); - if (IS_ERR(ah->ah)) { + vah = ib_create_ah(pd, attr); + if (IS_ERR(vah)) { kfree(ah); - ah = NULL; - } else + ah = (struct ipoib_ah *)vah; + } else { + ah->ah = vah; ipoib_dbg(netdev_priv(dev), "Created ah %p\n", ah->ah); + } return ah; } diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 7567b6000230..37c46c66b0f2 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -432,7 +432,7 @@ static void path_rec_completion(int status, spin_lock_irqsave(&priv->lock, flags); - if (ah) { + if (!IS_ERR_OR_NULL(ah)) { path->pathrec = *pathrec; old_ah = path->ah; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 1b7a97686356..30ca8f069a17 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -240,8 +240,11 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, av.grh.dgid = mcast->mcmember.mgid; ah = ipoib_create_ah(dev, priv->pd, &av); - if (!ah) { - ipoib_warn(priv, "ib_address_create failed\n"); + if (IS_ERR(ah)) { + ipoib_warn(priv, "ib_address_create failed %ld\n", + -PTR_ERR(ah)); + /* use original error */ + return PTR_ERR(ah); } else { spin_lock_irq(&priv->lock); mcast->ah = ah; From 580da35a31f91a594f3090b7a2c39b85cb051a12 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 29 Nov 2011 22:31:23 +0100 Subject: [PATCH 191/207] IB: Fix RCU lockdep splats Commit f2c31e32b37 ("net: fix NULL dereferences in check_peer_redir()") forgot to take care of infiniband uses of dst neighbours. Many thanks to Marc Aurele who provided a nice bug report and feedback. Reported-by: Marc Aurele La France Signed-off-by: Eric Dumazet Cc: David Miller Cc: Signed-off-by: Roland Dreier --- drivers/infiniband/core/addr.c | 9 ++++++--- drivers/infiniband/hw/cxgb3/iwch_cm.c | 4 ++++ drivers/infiniband/hw/cxgb4/cm.c | 6 ++++++ drivers/infiniband/hw/nes/nes_cm.c | 6 ++++-- drivers/infiniband/ulp/ipoib/ipoib_main.c | 18 +++++++++++------- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 6 ++++-- 6 files changed, 35 insertions(+), 14 deletions(-) diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c index 691276bafd78..e9cf51b1343b 100644 --- a/drivers/infiniband/core/addr.c +++ b/drivers/infiniband/core/addr.c @@ -216,7 +216,9 @@ static int addr4_resolve(struct sockaddr_in *src_in, neigh = neigh_lookup(&arp_tbl, &rt->rt_gateway, rt->dst.dev); if (!neigh || !(neigh->nud_state & NUD_VALID)) { + rcu_read_lock(); neigh_event_send(dst_get_neighbour(&rt->dst), NULL); + rcu_read_unlock(); ret = -ENODATA; if (neigh) goto release; @@ -274,15 +276,16 @@ static int addr6_resolve(struct sockaddr_in6 *src_in, goto put; } + rcu_read_lock(); neigh = dst_get_neighbour(dst); if (!neigh || !(neigh->nud_state & NUD_VALID)) { if (neigh) neigh_event_send(neigh, NULL); ret = -ENODATA; - goto put; + } else { + ret = rdma_copy_addr(addr, dst->dev, neigh->ha); } - - ret = rdma_copy_addr(addr, dst->dev, neigh->ha); + rcu_read_unlock(); put: dst_release(dst); return ret; diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index de6d0774e609..c88b12beef25 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -1375,8 +1375,10 @@ static int pass_accept_req(struct t3cdev *tdev, struct sk_buff *skb, void *ctx) goto reject; } dst = &rt->dst; + rcu_read_lock(); neigh = dst_get_neighbour(dst); l2t = t3_l2t_get(tdev, neigh, neigh->dev); + rcu_read_unlock(); if (!l2t) { printk(KERN_ERR MOD "%s - failed to allocate l2t entry!\n", __func__); @@ -1946,10 +1948,12 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) } ep->dst = &rt->dst; + rcu_read_lock(); neigh = dst_get_neighbour(ep->dst); /* get a l2t entry */ ep->l2t = t3_l2t_get(ep->com.tdev, neigh, neigh->dev); + rcu_read_unlock(); if (!ep->l2t) { printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__); err = -ENOMEM; diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index b36cdac9c558..75b57bee6622 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -1594,6 +1594,7 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb) goto reject; } dst = &rt->dst; + rcu_read_lock(); neigh = dst_get_neighbour(dst); if (neigh->dev->flags & IFF_LOOPBACK) { pdev = ip_dev_find(&init_net, peer_ip); @@ -1620,6 +1621,7 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb) rss_qid = dev->rdev.lldi.rxq_ids[ cxgb4_port_idx(neigh->dev) * step]; } + rcu_read_unlock(); if (!l2t) { printk(KERN_ERR MOD "%s - failed to allocate l2t entry!\n", __func__); @@ -1820,6 +1822,7 @@ static int c4iw_reconnect(struct c4iw_ep *ep) } ep->dst = &rt->dst; + rcu_read_lock(); neigh = dst_get_neighbour(ep->dst); /* get a l2t entry */ @@ -1856,6 +1859,7 @@ static int c4iw_reconnect(struct c4iw_ep *ep) ep->rss_qid = ep->com.dev->rdev.lldi.rxq_ids[ cxgb4_port_idx(neigh->dev) * step]; } + rcu_read_unlock(); if (!ep->l2t) { printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__); err = -ENOMEM; @@ -2301,6 +2305,7 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) } ep->dst = &rt->dst; + rcu_read_lock(); neigh = dst_get_neighbour(ep->dst); /* get a l2t entry */ @@ -2339,6 +2344,7 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ep->retry_with_mpa_v1 = 0; ep->tried_with_mpa_v1 = 0; } + rcu_read_unlock(); if (!ep->l2t) { printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__); err = -ENOMEM; diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index dfce9ea98a39..0a52d72371ee 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -1377,9 +1377,11 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi neigh_release(neigh); } - if ((neigh == NULL) || (!(neigh->nud_state & NUD_VALID))) + if ((neigh == NULL) || (!(neigh->nud_state & NUD_VALID))) { + rcu_read_lock(); neigh_event_send(dst_get_neighbour(&rt->dst), NULL); - + rcu_read_unlock(); + } ip_rt_put(rt); return rc; } diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 7567b6000230..ef38848d1b0e 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -555,6 +555,7 @@ static int path_rec_start(struct net_device *dev, return 0; } +/* called with rcu_read_lock */ static void neigh_add_path(struct sk_buff *skb, struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(dev); @@ -636,6 +637,7 @@ static void neigh_add_path(struct sk_buff *skb, struct net_device *dev) spin_unlock_irqrestore(&priv->lock, flags); } +/* called with rcu_read_lock */ static void ipoib_path_lookup(struct sk_buff *skb, struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(skb->dev); @@ -720,13 +722,14 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) struct neighbour *n = NULL; unsigned long flags; + rcu_read_lock(); if (likely(skb_dst(skb))) n = dst_get_neighbour(skb_dst(skb)); if (likely(n)) { if (unlikely(!*to_ipoib_neigh(n))) { ipoib_path_lookup(skb, dev); - return NETDEV_TX_OK; + goto unlock; } neigh = *to_ipoib_neigh(n); @@ -749,17 +752,17 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) ipoib_neigh_free(dev, neigh); spin_unlock_irqrestore(&priv->lock, flags); ipoib_path_lookup(skb, dev); - return NETDEV_TX_OK; + goto unlock; } if (ipoib_cm_get(neigh)) { if (ipoib_cm_up(neigh)) { ipoib_cm_send(dev, skb, ipoib_cm_get(neigh)); - return NETDEV_TX_OK; + goto unlock; } } else if (neigh->ah) { ipoib_send(dev, skb, neigh->ah, IPOIB_QPN(n->ha)); - return NETDEV_TX_OK; + goto unlock; } if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) { @@ -793,13 +796,14 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) phdr->hwaddr + 4); dev_kfree_skb_any(skb); ++dev->stats.tx_dropped; - return NETDEV_TX_OK; + goto unlock; } unicast_arp_send(skb, dev, phdr); } } - +unlock: + rcu_read_unlock(); return NETDEV_TX_OK; } @@ -837,7 +841,7 @@ static int ipoib_hard_header(struct sk_buff *skb, dst = skb_dst(skb); n = NULL; if (dst) - n = dst_get_neighbour(dst); + n = dst_get_neighbour_raw(dst); if ((!dst || !n) && daddr) { struct ipoib_pseudoheader *phdr = (struct ipoib_pseudoheader *) skb_push(skb, sizeof *phdr); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 1b7a97686356..cad1894594a8 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -266,7 +266,7 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, skb->dev = dev; if (dst) - n = dst_get_neighbour(dst); + n = dst_get_neighbour_raw(dst); if (!dst || !n) { /* put pseudoheader back on for next time */ skb_push(skb, sizeof (struct ipoib_pseudoheader)); @@ -722,6 +722,8 @@ void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb) if (mcast && mcast->ah) { struct dst_entry *dst = skb_dst(skb); struct neighbour *n = NULL; + + rcu_read_lock(); if (dst) n = dst_get_neighbour(dst); if (n && !*to_ipoib_neigh(n)) { @@ -734,7 +736,7 @@ void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb) list_add_tail(&neigh->list, &mcast->neigh_list); } } - + rcu_read_unlock(); spin_unlock_irqrestore(&priv->lock, flags); ipoib_send(dev, skb, mcast->ah, IB_MULTICAST_QPN); return; From 26bdef541d26fd6a5ddffdf8949ace22f94f809f Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 16 Nov 2011 11:28:01 +0300 Subject: [PATCH 192/207] btrfs scrub: handle -ENOMEM from init_ipath() init_ipath() can return an ERR_PTR(-ENOMEM). Signed-off-by: Dan Carpenter --- fs/btrfs/scrub.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index fab420db5121..c27bcb67f330 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -256,6 +256,11 @@ static int scrub_print_warning_inode(u64 inum, u64 offset, u64 root, void *ctx) btrfs_release_path(swarn->path); ipath = init_ipath(4096, local_root, swarn->path); + if (IS_ERR(ipath)) { + ret = PTR_ERR(ipath); + ipath = NULL; + goto err; + } ret = paths_from_inode(inum, ipath); if (ret < 0) From b52f75a595e8a70ee453bd6fb8023ee294f7a729 Mon Sep 17 00:00:00 2001 From: Arnd Hannemann Date: Wed, 16 Nov 2011 17:35:37 +0100 Subject: [PATCH 193/207] Fix URL of btrfs-progs git repository in docs The location of the btrfs-progs repository has been changed. This patch updates the documentation accordingly. Signed-off-by: Arnd Hannemann --- Documentation/filesystems/btrfs.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/filesystems/btrfs.txt b/Documentation/filesystems/btrfs.txt index 64087c34327f..7671352216f1 100644 --- a/Documentation/filesystems/btrfs.txt +++ b/Documentation/filesystems/btrfs.txt @@ -63,8 +63,8 @@ IRC network. Userspace tools for creating and manipulating Btrfs file systems are available from the git repository at the following location: - http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-progs-unstable.git - git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs-unstable.git + http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-progs.git + git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs.git These include the following tools: From aa38a711a893accf5b5192f3d705a120deaa81e0 Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Fri, 18 Nov 2011 17:43:00 +0800 Subject: [PATCH 194/207] Btrfs: fix deadlock on metadata reservation when evicting a inode When I ran the xfstests, I found the test tasks was blocked on meta-data reservation. By debugging, I found the reason of this bug: start transaction | v reserve meta-data space | v flush delay allocation -> iput inode -> evict inode ^ | | v wait for delay allocation flush <- reserve meta-data space And besides that, the flush on evicting inode will block the thread, which is reclaiming the memory, and make oom happen easily. Fix this bug by skipping the flush step when evicting inode. Signed-off-by: Miao Xie --- fs/btrfs/ctree.h | 3 +++ fs/btrfs/extent-tree.c | 22 ++++++++++++++++++---- fs/btrfs/inode.c | 2 +- 3 files changed, 22 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 04a5dfcee5a1..50634abef9b4 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2369,6 +2369,9 @@ int btrfs_block_rsv_check(struct btrfs_root *root, int btrfs_block_rsv_refill(struct btrfs_root *root, struct btrfs_block_rsv *block_rsv, u64 min_reserved); +int btrfs_block_rsv_refill_noflush(struct btrfs_root *root, + struct btrfs_block_rsv *block_rsv, + u64 min_reserved); int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv, struct btrfs_block_rsv *dst_rsv, u64 num_bytes); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 5d86877f10e1..b7e5f6898d07 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3887,9 +3887,9 @@ int btrfs_block_rsv_check(struct btrfs_root *root, return ret; } -int btrfs_block_rsv_refill(struct btrfs_root *root, - struct btrfs_block_rsv *block_rsv, - u64 min_reserved) +static inline int __btrfs_block_rsv_refill(struct btrfs_root *root, + struct btrfs_block_rsv *block_rsv, + u64 min_reserved, int flush) { u64 num_bytes = 0; int ret = -ENOSPC; @@ -3908,7 +3908,7 @@ int btrfs_block_rsv_refill(struct btrfs_root *root, if (!ret) return 0; - ret = reserve_metadata_bytes(root, block_rsv, num_bytes, 1); + ret = reserve_metadata_bytes(root, block_rsv, num_bytes, flush); if (!ret) { block_rsv_add_bytes(block_rsv, num_bytes, 0); return 0; @@ -3917,6 +3917,20 @@ int btrfs_block_rsv_refill(struct btrfs_root *root, return ret; } +int btrfs_block_rsv_refill(struct btrfs_root *root, + struct btrfs_block_rsv *block_rsv, + u64 min_reserved) +{ + return __btrfs_block_rsv_refill(root, block_rsv, min_reserved, 1); +} + +int btrfs_block_rsv_refill_noflush(struct btrfs_root *root, + struct btrfs_block_rsv *block_rsv, + u64 min_reserved) +{ + return __btrfs_block_rsv_refill(root, block_rsv, min_reserved, 0); +} + int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv, struct btrfs_block_rsv *dst_rsv, u64 num_bytes) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 8ad26b135a1c..c5ccec23984c 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3490,7 +3490,7 @@ void btrfs_evict_inode(struct inode *inode) * doing the truncate. */ while (1) { - ret = btrfs_block_rsv_refill(root, rsv, min_size); + ret = btrfs_block_rsv_refill_noflush(root, rsv, min_size); /* * Try and steal from the global reserve since we will From ece7d20e8be6730fbb29f4550de6b19b1a3a9387 Mon Sep 17 00:00:00 2001 From: Mike Fleetwood Date: Fri, 18 Nov 2011 18:55:01 +0000 Subject: [PATCH 195/207] Btrfs: Don't error on resizing FS to same size It seems overly harsh to fail a resize of a btrfs file system to the same size when a shrink or grow would succeed. User app GParted trips over this error. Allow it by bypassing the shrink or grow operation. Signed-off-by: Mike Fleetwood --- fs/btrfs/ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index a90e749ed6d2..72d461656f60 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1278,7 +1278,7 @@ static noinline int btrfs_ioctl_resize(struct btrfs_root *root, } ret = btrfs_grow_device(trans, device, new_size); btrfs_commit_transaction(trans, root); - } else { + } else if (new_size < old_size) { ret = btrfs_shrink_device(device, new_size); } From b772a86ea6d932ac29d5e50e67c977653c832f8a Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 28 Nov 2011 16:43:00 +0800 Subject: [PATCH 196/207] Btrfs: fix oops when calling statfs on readonly device To reproduce this bug: # dd if=/dev/zero of=img bs=1M count=256 # mkfs.btrfs img # losetup -r /dev/loop1 img # mount /dev/loop1 /mnt OOPS!! It triggered BUG_ON(!nr_devices) in btrfs_calc_avail_data_space(). To fix this, instead of checking write-only devices, we check all open deivces: # df -h /dev/loop1 Filesystem Size Used Avail Use% Mounted on /dev/loop1 250M 28K 238M 1% /mnt Signed-off-by: Li Zefan --- fs/btrfs/super.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 8bd9d6d0e07a..1a3ce9e0b495 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1083,7 +1083,7 @@ static int btrfs_calc_avail_data_space(struct btrfs_root *root, u64 *free_bytes) int i = 0, nr_devices; int ret; - nr_devices = fs_info->fs_devices->rw_devices; + nr_devices = fs_info->fs_devices->open_devices; BUG_ON(!nr_devices); devices_info = kmalloc(sizeof(*devices_info) * nr_devices, @@ -1105,8 +1105,8 @@ static int btrfs_calc_avail_data_space(struct btrfs_root *root, u64 *free_bytes) else min_stripe_size = BTRFS_STRIPE_LEN; - list_for_each_entry(device, &fs_devices->alloc_list, dev_alloc_list) { - if (!device->in_fs_metadata) + list_for_each_entry(device, &fs_devices->devices, dev_list) { + if (!device->in_fs_metadata || !device->bdev) continue; avail_space = device->total_bytes - device->bytes_used; From f2d0f6765d6332f9be732965a0c6f3b8a55082b4 Mon Sep 17 00:00:00 2001 From: Alexandre Oliva Date: Mon, 28 Nov 2011 12:04:43 -0200 Subject: [PATCH 197/207] Btrfs: initialize new bitmaps' list We're failing to create clusters with bitmaps because setup_cluster_no_bitmap checks that the list is empty before inserting the bitmap entry in the list for setup_cluster_bitmap, but the list field is only initialized when it is restored from the on-disk free space cache, or when it is written out to disk. Besides a potential race condition due to the multiple use of the list field, filesystem performance severely degrades over time: as we use up all non-bitmap free extents, the try-to-set-up-cluster dance is done at every metadata block allocation. For every block group, we fail to set up a cluster, and after failing on them all up to twice, we fall back to the much slower unclustered allocation. To make matters worse, before the unclustered allocation, we try to create new block groups until we reach the 1% threshold, which introduces additional bitmaps and thus block groups that we'll iterate over at each metadata block request. --- fs/btrfs/free-space-cache.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 6e5b7e463698..ff179b1e7423 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1470,6 +1470,7 @@ static void add_new_bitmap(struct btrfs_free_space_ctl *ctl, { info->offset = offset_to_bitmap(ctl, offset); info->bytes = 0; + INIT_LIST_HEAD(&info->list); link_free_space(ctl, info); ctl->total_bitmaps++; From b78d09bceb524ee6481c21b77bda22d766b10e6a Mon Sep 17 00:00:00 2001 From: Alexandre Oliva Date: Wed, 30 Nov 2011 13:43:00 -0500 Subject: [PATCH 198/207] Btrfs: reset cluster's max_size when creating bitmap The field that indicates the size of the largest contiguous chunk of free space in the cluster is not initialized when setting up bitmaps, it's only increased when we find a larger contiguous chunk. We end up retaining a larger value than appropriate for highly-fragmented clusters, which may cause pointless searches for large contiguous groups, and even cause clusters that do not meet the density requirements to be set up. Signed-off-by: Alexandre Oliva Signed-off-by: Chris Mason --- fs/btrfs/free-space-cache.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index ff179b1e7423..ec23d43d0c35 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -2320,6 +2320,7 @@ static int btrfs_bitmap_cluster(struct btrfs_block_group_cache *block_group, if (!found) { start = i; + cluster->max_size = 0; found = true; } From 1b22bad779be7fe07242be04749ec969164528b8 Mon Sep 17 00:00:00 2001 From: Alexandre Oliva Date: Wed, 30 Nov 2011 13:43:00 -0500 Subject: [PATCH 199/207] Btrfs: start search for new cluster at the beginning Instead of starting at zero (offset is always zero), request a cluster starting at search_start, that denotes the beginning of the current block group. Signed-off-by: Alexandre Oliva Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index b7e5f6898d07..97c12067a4b0 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5301,10 +5301,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, spin_lock(&last_ptr->refill_lock); if (last_ptr->block_group && (last_ptr->block_group->ro || - !block_group_bits(last_ptr->block_group, data))) { - offset = 0; + !block_group_bits(last_ptr->block_group, data))) goto refill_cluster; - } offset = btrfs_alloc_from_cluster(block_group, last_ptr, num_bytes, search_start); @@ -5355,7 +5353,7 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, /* allocate a cluster in this block group */ ret = btrfs_find_space_cluster(trans, root, block_group, last_ptr, - offset, num_bytes, + search_start, num_bytes, empty_cluster + empty_size); if (ret == 0) { /* From 425d83156ca27f74e2cc3f370138038c3c8947f8 Mon Sep 17 00:00:00 2001 From: Alexandre Oliva Date: Wed, 30 Nov 2011 13:43:00 -0500 Subject: [PATCH 200/207] Btrfs: skip block groups without enough space for a cluster We test whether a block group has enough free space to hold the requested block, but when we're doing clustered allocation, we can save some cycles by testing whether it has enough room for the cluster upfront, otherwise we end up attempting to set up a cluster and failing. Only in the NO_EMPTY_SIZE loop do we attempt an unclustered allocation, and by then we'll have zeroed the cluster size, so this patch won't stop us from using the block group as a last resort. Signed-off-by: Alexandre Oliva Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 97c12067a4b0..71c8e7049d0c 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5278,7 +5278,7 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, spin_lock(&block_group->free_space_ctl->tree_lock); if (cached && block_group->free_space_ctl->free_space < - num_bytes + empty_size) { + num_bytes + empty_cluster + empty_size) { spin_unlock(&block_group->free_space_ctl->tree_lock); goto loop; } From be064d113906f04ea13088a8260e1e68ae0a4050 Mon Sep 17 00:00:00 2001 From: Alexandre Oliva Date: Wed, 30 Nov 2011 13:43:00 -0500 Subject: [PATCH 201/207] Btrfs: skip allocation attempt from empty cluster If we don't have a cluster, don't bother trying to allocate from it, jumping right away to the attempt to allocate a new cluster. Signed-off-by: Alexandre Oliva Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 71c8e7049d0c..813c6bb96c9a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5299,9 +5299,9 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, * people trying to start a new cluster */ spin_lock(&last_ptr->refill_lock); - if (last_ptr->block_group && - (last_ptr->block_group->ro || - !block_group_bits(last_ptr->block_group, data))) + if (!last_ptr->block_group || + last_ptr->block_group->ro || + !block_group_bits(last_ptr->block_group, data)) goto refill_cluster; offset = btrfs_alloc_from_cluster(block_group, last_ptr, From 14383c295ab48178c449336f5d74e9e615e36723 Mon Sep 17 00:00:00 2001 From: "Jon Medhurst (Tixy)" Date: Tue, 29 Nov 2011 08:14:35 +0100 Subject: [PATCH 202/207] ARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction There is a kprobes testcase for the instruction "strd r2, [r3], r4". This has unpredictable behaviour as it uses r3 for register writeback addressing and also stores it to memory. On a cortex A9, this testcase would fail because the instruction writes the updated value of r3 to memory, whereas the kprobes emulation code writes the original value. Fix this by changing testcase to used r5 instead of r3. Reported-by: Leif Lindholm Tested-by: Leif Lindholm Acked-by: Nicolas Pitre Signed-off-by: Jon Medhurst Signed-off-by: Russell King --- arch/arm/kernel/kprobes-test-arm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/kprobes-test-arm.c b/arch/arm/kernel/kprobes-test-arm.c index fc82de8bdcce..edf9ad8d3c6b 100644 --- a/arch/arm/kernel/kprobes-test-arm.c +++ b/arch/arm/kernel/kprobes-test-arm.c @@ -550,7 +550,7 @@ void kprobe_arm_test_cases(void) TEST_RPR( "strccd r",8, VAL2,", [r",13,0, ", r",12,48,"]") TEST_RPR( "strd r",4, VAL1,", [r",2, 24,", r",3, 48,"]!") TEST_RPR( "strcsd r",12,VAL2,", [r",11,48,", -r",10,24,"]!") - TEST_RPR( "strd r",2, VAL1,", [r",3, 24,"], r",4,48,"") + TEST_RPR( "strd r",2, VAL1,", [r",5, 24,"], r",4,48,"") TEST_RPR( "strd r",10,VAL2,", [r",9, 48,"], -r",7,24,"") TEST_UNSUPPORTED(".word 0xe1afc0fa @ strd r12, [pc, r10]!") From b5bed7fe801d1460424b7aeb6b06464e23d2a1e6 Mon Sep 17 00:00:00 2001 From: "Jon Medhurst (Tixy)" Date: Tue, 29 Nov 2011 08:16:02 +0100 Subject: [PATCH 203/207] ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below The SWP instruction is deprecated on ARMv6 and with ARMv7 it will be UNDEFINED when CONFIG_SWP_EMULATE is selected. In this case, probing a SWP instruction will cause an oops when the kprobes emulation code executes an undefined instruction. As the SWP instruction should be rare or non-existent in kernels for ARMv6 and later, we can simply avoid these problems by not allowing probing of these. Reported-by: Leif Lindholm Tested-by: Leif Lindholm Acked-by: Nicolas Pitre Signed-off-by: Jon Medhurst Signed-off-by: Russell King --- arch/arm/kernel/kprobes-arm.c | 4 +++- arch/arm/kernel/kprobes-test-arm.c | 25 ++++++++++++++++--------- 2 files changed, 19 insertions(+), 10 deletions(-) diff --git a/arch/arm/kernel/kprobes-arm.c b/arch/arm/kernel/kprobes-arm.c index 9fe8910308af..8a30c89da70e 100644 --- a/arch/arm/kernel/kprobes-arm.c +++ b/arch/arm/kernel/kprobes-arm.c @@ -519,10 +519,12 @@ static const union decode_item arm_cccc_0000_____1001_table[] = { static const union decode_item arm_cccc_0001_____1001_table[] = { /* Synchronization primitives */ +#if __LINUX_ARM_ARCH__ < 6 + /* Deprecated on ARMv6 and may be UNDEFINED on v7 */ /* SMP/SWPB cccc 0001 0x00 xxxx xxxx xxxx 1001 xxxx */ DECODE_EMULATEX (0x0fb000f0, 0x01000090, emulate_rd12rn16rm0_rwflags_nopc, REGS(NOPC, NOPC, 0, 0, NOPC)), - +#endif /* LDREX/STREX{,D,B,H} cccc 0001 1xxx xxxx xxxx xxxx 1001 xxxx */ /* And unallocated instructions... */ DECODE_END diff --git a/arch/arm/kernel/kprobes-test-arm.c b/arch/arm/kernel/kprobes-test-arm.c index edf9ad8d3c6b..ba32b393b3f0 100644 --- a/arch/arm/kernel/kprobes-test-arm.c +++ b/arch/arm/kernel/kprobes-test-arm.c @@ -427,18 +427,25 @@ void kprobe_arm_test_cases(void) TEST_GROUP("Synchronization primitives") - /* - * Use hard coded constants for SWP instructions to avoid warnings - * about deprecated instructions. - */ - TEST_RP( ".word 0xe108e097 @ swp lr, r",7,VAL2,", [r",8,0,"]") - TEST_R( ".word 0x610d0091 @ swpvs r0, r",1,VAL1,", [sp]") - TEST_RP( ".word 0xe10cd09e @ swp sp, r",14,VAL2,", [r",12,13*4,"]") +#if __LINUX_ARM_ARCH__ < 6 + TEST_RP("swp lr, r",7,VAL2,", [r",8,0,"]") + TEST_R( "swpvs r0, r",1,VAL1,", [sp]") + TEST_RP("swp sp, r",14,VAL2,", [r",12,13*4,"]") +#else + TEST_UNSUPPORTED(".word 0xe108e097 @ swp lr, r7, [r8]") + TEST_UNSUPPORTED(".word 0x610d0091 @ swpvs r0, r1, [sp]") + TEST_UNSUPPORTED(".word 0xe10cd09e @ swp sp, r14 [r12]") +#endif TEST_UNSUPPORTED(".word 0xe102f091 @ swp pc, r1, [r2]") TEST_UNSUPPORTED(".word 0xe102009f @ swp r0, pc, [r2]") TEST_UNSUPPORTED(".word 0xe10f0091 @ swp r0, r1, [pc]") - TEST_RP( ".word 0xe148e097 @ swpb lr, r",7,VAL2,", [r",8,0,"]") - TEST_R( ".word 0x614d0091 @ swpvsb r0, r",1,VAL1,", [sp]") +#if __LINUX_ARM_ARCH__ < 6 + TEST_RP("swpb lr, r",7,VAL2,", [r",8,0,"]") + TEST_R( "swpvsb r0, r",1,VAL1,", [sp]") +#else + TEST_UNSUPPORTED(".word 0xe148e097 @ swpb lr, r7, [r8]") + TEST_UNSUPPORTED(".word 0x614d0091 @ swpvsb r0, r1, [sp]") +#endif TEST_UNSUPPORTED(".word 0xe142f091 @ swpb pc, r1, [r2]") TEST_UNSUPPORTED(".word 0xe1100090") /* Unallocated space */ From 4cbd6b167f9ed756ced970e0a95538f60ae3b9ab Mon Sep 17 00:00:00 2001 From: Vincent Guittot Date: Tue, 29 Nov 2011 15:50:20 +0100 Subject: [PATCH 204/207] ARM: 7182/1: ARM cpu topology: fix warning kernel/sched.c:7354:2: warning: initialization from incompatible pointer type Align cpu_coregroup_mask prototype interface with sched_domain_mask_f typedef use int cpu instead of unsigned int cpu Cc: Signed-off-by: Vincent Guittot Signed-off-by: Russell King --- arch/arm/include/asm/topology.h | 2 +- arch/arm/kernel/topology.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h index a7e457ed27c3..58b8b84adcd2 100644 --- a/arch/arm/include/asm/topology.h +++ b/arch/arm/include/asm/topology.h @@ -25,7 +25,7 @@ extern struct cputopo_arm cpu_topology[NR_CPUS]; void init_cpu_topology(void); void store_cpu_topology(unsigned int cpuid); -const struct cpumask *cpu_coregroup_mask(unsigned int cpu); +const struct cpumask *cpu_coregroup_mask(int cpu); #else diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c index 1040c00405d0..8200deaa14f6 100644 --- a/arch/arm/kernel/topology.c +++ b/arch/arm/kernel/topology.c @@ -43,7 +43,7 @@ struct cputopo_arm cpu_topology[NR_CPUS]; -const struct cpumask *cpu_coregroup_mask(unsigned int cpu) +const struct cpumask *cpu_coregroup_mask(int cpu) { return &cpu_topology[cpu].core_sibling; } From f4a8e6563ea5366f563cb741a27fe90c5fa7f0fc Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Thu, 1 Dec 2011 09:30:36 -0500 Subject: [PATCH 205/207] Btrfs: fix meta data raid-repair merge problem Commit 4a54c8c16 introduced raid-repair, killing the individual readpage_io_failed_hook entries from inode.c and disk-io.c. Commit 4bb31e92 introduced new readahead code, adding a readpage_io_failed_hook to disk-io.c. The raid-repair commit had logic to disable raid-repair, if readpage_io_failed_hook is set. Thus, the readahead commit effectively disabled raid-repair for meta data. This commit changes the logic to always attempt raid-repair when needed and call the readpage_io_failed_hook in case raid-repair fails. This is much more straight forward and should have been like that from the beginning. Signed-off-by: Jan Schmidt Reported-by: Stefan Behrens Signed-off-by: Chris Mason --- fs/btrfs/extent_io.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 9472d3de5e52..be1bf627a14b 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2287,14 +2287,20 @@ static void end_bio_extent_readpage(struct bio *bio, int err) if (!uptodate) { int failed_mirror; failed_mirror = (int)(unsigned long)bio->bi_bdev; - if (tree->ops && tree->ops->readpage_io_failed_hook) - ret = tree->ops->readpage_io_failed_hook( - bio, page, start, end, - failed_mirror, state); - else - ret = bio_readpage_error(bio, page, start, end, - failed_mirror, NULL); + /* + * The generic bio_readpage_error handles errors the + * following way: If possible, new read requests are + * created and submitted and will end up in + * end_bio_extent_readpage as well (if we're lucky, not + * in the !uptodate case). In that case it returns 0 and + * we just go on with the next page in our bio. If it + * can't handle the error it will return -EIO and we + * remain responsible for that page. + */ + ret = bio_readpage_error(bio, page, start, end, + failed_mirror, NULL); if (ret == 0) { +error_handled: uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); if (err) @@ -2302,6 +2308,13 @@ static void end_bio_extent_readpage(struct bio *bio, int err) uncache_state(&cached); continue; } + if (tree->ops && tree->ops->readpage_io_failed_hook) { + ret = tree->ops->readpage_io_failed_hook( + bio, page, start, end, + failed_mirror, state); + if (ret == 0) + goto error_handled; + } } if (uptodate) { From 939255798a468e1a92f03546de6e87be7b491e57 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Tue, 15 Nov 2011 14:56:34 -0800 Subject: [PATCH 206/207] ocfs2: avoid unaligned access to dqc_bitmap The dqc_bitmap field of struct ocfs2_local_disk_chunk is 32-bit aligned, but not 64-bit aligned. The dqc_bitmap is accessed by ocfs2_set_bit(), ocfs2_clear_bit(), ocfs2_test_bit(), or ocfs2_find_next_zero_bit(). These are wrapper macros for ext2_*_bit() which need to take an unsigned long aligned address (though some architectures are able to handle unaligned address correctly) So some 64bit architectures may not be able to access the dqc_bitmap correctly. This avoids such unaligned access by using another wrapper functions for ext2_*_bit(). The code is taken from fs/ext4/mballoc.c which also need to handle unaligned bitmap access. Signed-off-by: Akinobu Mita Acked-by: Joel Becker Cc: Mark Fasheh Signed-off-by: Andrew Morton Signed-off-by: Joel Becker --- fs/ocfs2/ocfs2.h | 47 ++++++++++++++++++++++++++++++++++++++++++ fs/ocfs2/quota_local.c | 10 ++++----- 2 files changed, 52 insertions(+), 5 deletions(-) diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index bcde467acca3..d355e6e36b36 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -849,5 +849,52 @@ static inline void _ocfs2_clear_bit(unsigned int bit, unsigned long *bitmap) #define ocfs2_test_bit test_bit_le #define ocfs2_find_next_zero_bit find_next_zero_bit_le #define ocfs2_find_next_bit find_next_bit_le + +static inline void *correct_addr_and_bit_unaligned(int *bit, void *addr) +{ +#if BITS_PER_LONG == 64 + *bit += ((unsigned long) addr & 7UL) << 3; + addr = (void *) ((unsigned long) addr & ~7UL); +#elif BITS_PER_LONG == 32 + *bit += ((unsigned long) addr & 3UL) << 3; + addr = (void *) ((unsigned long) addr & ~3UL); +#else +#error "how many bits you are?!" +#endif + return addr; +} + +static inline void ocfs2_set_bit_unaligned(int bit, void *bitmap) +{ + bitmap = correct_addr_and_bit_unaligned(&bit, bitmap); + ocfs2_set_bit(bit, bitmap); +} + +static inline void ocfs2_clear_bit_unaligned(int bit, void *bitmap) +{ + bitmap = correct_addr_and_bit_unaligned(&bit, bitmap); + ocfs2_clear_bit(bit, bitmap); +} + +static inline int ocfs2_test_bit_unaligned(int bit, void *bitmap) +{ + bitmap = correct_addr_and_bit_unaligned(&bit, bitmap); + return ocfs2_test_bit(bit, bitmap); +} + +static inline int ocfs2_find_next_zero_bit_unaligned(void *bitmap, int max, + int start) +{ + int fix = 0, ret, tmpmax; + bitmap = correct_addr_and_bit_unaligned(&fix, bitmap); + tmpmax = max + fix; + start += fix; + + ret = ocfs2_find_next_zero_bit(bitmap, tmpmax, start) - fix; + if (ret > max) + return max; + return ret; +} + #endif /* OCFS2_H */ diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index 942fd65bdad3..f100bf70a906 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -551,8 +551,8 @@ static int ocfs2_recover_local_quota_file(struct inode *lqinode, goto out_commit; } lock_buffer(qbh); - WARN_ON(!ocfs2_test_bit(bit, dchunk->dqc_bitmap)); - ocfs2_clear_bit(bit, dchunk->dqc_bitmap); + WARN_ON(!ocfs2_test_bit_unaligned(bit, dchunk->dqc_bitmap)); + ocfs2_clear_bit_unaligned(bit, dchunk->dqc_bitmap); le32_add_cpu(&dchunk->dqc_free, 1); unlock_buffer(qbh); ocfs2_journal_dirty(handle, qbh); @@ -949,7 +949,7 @@ static struct ocfs2_quota_chunk *ocfs2_find_free_entry(struct super_block *sb, * ol_quota_entries_per_block(sb); } - found = ocfs2_find_next_zero_bit(dchunk->dqc_bitmap, len, 0); + found = ocfs2_find_next_zero_bit_unaligned(dchunk->dqc_bitmap, len, 0); /* We failed? */ if (found == len) { mlog(ML_ERROR, "Did not find empty entry in chunk %d with %u" @@ -1213,7 +1213,7 @@ static void olq_alloc_dquot(struct buffer_head *bh, void *private) struct ocfs2_local_disk_chunk *dchunk; dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data; - ocfs2_set_bit(*offset, dchunk->dqc_bitmap); + ocfs2_set_bit_unaligned(*offset, dchunk->dqc_bitmap); le32_add_cpu(&dchunk->dqc_free, -1); } @@ -1294,7 +1294,7 @@ int ocfs2_local_release_dquot(handle_t *handle, struct dquot *dquot) (od->dq_chunk->qc_headerbh->b_data); /* Mark structure as freed */ lock_buffer(od->dq_chunk->qc_headerbh); - ocfs2_clear_bit(offset, dchunk->dqc_bitmap); + ocfs2_clear_bit_unaligned(offset, dchunk->dqc_bitmap); le32_add_cpu(&dchunk->dqc_free, 1); unlock_buffer(od->dq_chunk->qc_headerbh); ocfs2_journal_dirty(handle, od->dq_chunk->qc_headerbh); From 5611cc4572e889b62a7b4c72a413536bf6a9c416 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 1 Dec 2011 14:56:01 -0800 Subject: [PATCH 207/207] Linux 3.2-rc4 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 3a8f0640cda0..12aafc20efbd 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 2 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Saber-toothed Squirrel # *DOCUMENTATION*