The CP semaphore queue on CIK has a bug that triggers if uncompleted
waits use the same address while a signal is still pending. Work around
this by using different addresses for each sync.
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Static checkers complain that probably curly braces were intended here,
but actually it makes more sense to remove the extra tab.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Most laptops seems to have a vblank period of less than
300 and mclk switching works fine. Drop the quirk and
set the default threshold to 200.
bug:
https://bugzilla.kernel.org/show_bug.cgi?id=70701
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Some hardware may not support standard 64x64 cursors. Add
a drm cap to query the cursor size from the kernel. Some examples
include radeon CIK parts (128x128 cursors) and armada (32x64 or 64x32).
This allows things like device specific ddxes to remove asics specific
logic and also allows xf86-video-modesetting to work properly with hw
cursors on this hardware. Default to 64 if the driver doesn't specify
a size.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
We were already storing the bpc (bits per color) information
in radeon_crtc, so just use that everywhere rather than
calculating it everywhere we use it. This also allows us
to change it in one place if we ever want to override it.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Miscellaneous ext4 bug fixes for v3.14"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
jbd2: fix use after free in jbd2_journal_start_reserved()
ext4: don't leave i_crtime.tv_sec uninitialized
ext4: fix online resize with a non-standard blocks per group setting
ext4: fix online resize with very large inode tables
ext4: don't try to modify s_flags if the the file system is read-only
ext4: fix error paths in swap_inode_boot_loader()
ext4: fix xfstest generic/299 block validity failures
This patch fix a memory leak found by cppcheck.
[drivers/gpu/drm/ttm/ttm_agp_backend.c:129]:
(error) Memory leak: agp_be
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Declare 'struct device' explicitly in ttm_page_alloc.h as this file
does not include any file declaring it. This removes the following
warning:
warning: 'struct device' declared inside parameter list
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Nothing too exciting, mostly fixes for ancient boards, but a pretty important fix for DP on some systems.
Thanks,
* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau: fix TTM_PL_TT memtype on pre-nv50
drm/nv50/disp: use correct register to determine DP display bpp
drm/nouveau/fb: use correct ram oclass for nv1a hardware
drm/nv50/gr: add missing nv_error parameter priv
drm/nouveau: fix ENG_RUNLIST register address
drm/nv4c/bios: disallow retrieving from prom on nv4x igp's
drm/nv4c/vga: decode register is in a different place on nv4x igp's
drm/nv4c/mc: nv4x igp's have a different msi rearm register
drm/nouveau: set irq_enabled manually
3 fixes plus 1 prep patch, all four cc: stable. Jani will take over from
here and the plan is that he'll do 3.14-fixes for the entire release just
to work things out a bit.
* tag 'drm-intel-fixes-2014-02-14' of ssh://git.freedesktop.org/git/drm-intel:
drm/i915/dp: add native aux defer retry limit
drm/i915/dp: increase native aux defer retry timeout
drm/i915: Prevent MI_DISPLAY_FLIP straddling two cachelines on IVB
drm/i915: Add intel_ring_cachline_align()
fix for leak in tda998x
* 'tda998x-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox:
drm/i2c: tda998x: Fix memory leak in tda998x_encoder_init error path.
If start_this_handle() fails then it leads to a use after free of
"handle".
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
Commit a55409066 ("drm/nv50-: map TTM_PL_SYSTEM through a BAR for CPU
access") made it possible to work with tiled memory. However
mem->mm_node is not a nouveau_mem for AGP-using pre-NV50 cards, but a
drm_mm_node, as created by the ttm_bo_manager_func. As such, extend the
untiled check to explicitly include all pre-nv50 cards.
Reported-by: Ronald <ronald645@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74613
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Tested-by: Ronald Uitermark <ronald645@gmail.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Commit 0a0afd282f ("drm/nv50-/disp: move DP link training to core and
train from supervisor") added code that uses the wrong register for
computing the display bpp, used for bandwidth calculation. Adjust to use
the same register as used by exec_clkcmp and nv50_disp_intr_unk20_2_dp.
Reported-by: Torsten Wagner <torsten.wagner@gmail.com>
Reported-by: Michael Gulick <mgulick@mathworks.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67628
Cc: stable@vger.kernel.org # 3.9+
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
commit 8613e7314a
Author: Ben Skeggs <bskeggs@redhat.com>
Date: Mon Oct 21 08:50:25 2013 +1000
drm/nouveau/fb: remove ram oclass argument from base fb constructor
Introduced a unfortunate regression by using nv10 ram oclass for nv1a
hardware, causing corruption and eventually system lockup.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74866
Reported-by: John F. Godfrey <jfgodfrey@gmail.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Cc: stable@vger.kernel.org # 3.13+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Commit ea7dce901 ("drm/nv50/gr: print mpc trap name when it's not an mp
trap") added an nv_error call that was missing the priv parameter. This
causes GPFs if the error is ever hit.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Address of the ENG_RUNLIST register should be 0x002284 + (engine * 8),
not 0x002284 + (engine * 4).
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
See https://bugs.freedesktop.org/show_bug.cgi?id=74492
Reported-by: Ronald <ronald645@gmail.com>
Suggested-by: Marcin Kościelnicki <koriakin@0x04.net>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Since commit 0fa9061ae8 ("drm/nouveau/mc: handle irq-related setup
ourselves"), drm_device->irq_enabled remained unset. This is needed in
order to properly wait for a vblank event in the generic drm code.
See https://bugs.freedesktop.org/show_bug.cgi?id=74195
Reported-by: Jan Janecek <janjanjanx@gmail.com>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Add DSB after icache flush to complete the cache maintenance operation.
Signed-off-by: Vinayak Kale <vkale@apm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
We must use a 64-bit for this, otherwise overflowed bits get lost, and
that can result in a lower than intended value set.
Fixes: 8e0cb8a1f6 ("ARM: 7797/1: mmc: Use dma_max_pfn(dev) helper for bounce_limit calculations")
Fixes: 7d35496dd9 ("ARM: 7796/1: scsi: Use dma_max_pfn(dev) helper for bounce_limit calculations")
Tested-Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ERROR: spaces required and "(foo*)" should be "(foo *)"
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace two magic numbers which intialize clgstate::state.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
since commit 89aef8921bf("ipv4: Delete routing cache."), the counter
in_slow_tot can't work correctly.
The counter in_slow_tot increase by one when fib_lookup() return successfully
in ip_route_input_slow(), but actually the dst struct maybe not be created and
cached, so we can increase in_slow_tot after the dst struct is created.
Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull Ceph fixes from Sage Weil:
"We have some patches fixing up ACL support issues from Zheng and
Guangliang and a mount option to enable/disable this support. (These
fixes were somewhat delayed by the Chinese holiday.)
There is also a small fix for cached readdir handling when directories
are fragmented"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: fix __dcache_readdir()
ceph: add acl, noacl options for cephfs mount
ceph: make ceph_forget_all_cached_acls() static inline
ceph: add missing init_acl() for mkdir() and atomic_open()
ceph: fix ceph_set_acl()
ceph: fix ceph_removexattr()
ceph: remove xattr when null value is given to setxattr()
ceph: properly handle XATTR_CREATE and XATTR_REPLACE
Pull CIFS fixes from Steve French:
"Three cifs fixes, the most important fixing the problem with passing
bogus pointers with writev (CVE-2014-0069).
Two additional cifs fixes are still in review (including the fix for
an append problem which Al also discovered)"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: Fix too big maxBuf size for SMB3 mounts
cifs: ensure that uncached writes handle unmapped areas correctly
[CIFS] Fix cifsacl mounts over smb2 to not call cifs
When FS-Cache allocates an object, the following sequence of events can
occur:
-->fscache_alloc_object()
-->cachefiles_alloc_object() [via cache->ops->alloc_object]
<--[returns new object]
-->fscache_attach_object()
<--[failed]
-->cachefiles_put_object() [via cache->ops->put_object]
-->fscache_object_destroy()
-->fscache_objlist_remove()
-->rb_erase() to remove the object from fscache_object_list.
resulting in a crash in the rbtree code.
The problem is that the object is only added to fscache_object_list on
the success path of fscache_attach_object() where it calls
fscache_objlist_add().
So if fscache_attach_object() fails, the object won't have been added to
the objlist rbtree. We do, however, unconditionally try to remove the
object from the tree.
Thanks to NeilBrown for finding this and suggesting this solution.
Reported-by: NeilBrown <neilb@suse.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: (a customer of) NeilBrown <neilb@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This has been this way for years, and every time I stumble across it I
lose my lunch. After coming across it for the nth time in the Coverity
results, I had to overcome the bystander effect and do something about
it.
This ignores the 79 column limit in favor of making it look like C
instead of gibberish.
The correct thing to do here would be to lose some of the indentation by
breaking this function up into several smaller ones. I might do that at
some point if I have the stomach to look at this again.
(Also some of those overlong ternary operations would likely be more
readable as regular if's)
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Phoebe Buckheister says:
====================
ieee802154: support rf212 and extended mac features
this patch set adds support for the RF212 radio chip to the existing
at86rf230 driver and adds support for numerous features of the RF212
chips to the ieee802154 stack. These features include CSMA parameter
configuration, transmit power control, CCA parameter configuration, and
automatic retransmission of frames. Netlink APIs are provided for all
new options introduced in this set.
Many features might also work for RF230, but since I have no such chips
at my disposal, most new features are implemented only for RF212.
Changes since v2:
* Indentation
Changes since v1:
* CodingStyle compliance. Thanks Sergei Shtylyov
* Add CSMA parameters to netlink phy list that were forgotten in v1
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch does multiple things:
* add .set_csma_params and .set_frame_retries for the RF212 radio.
This should work fine with RF230, but since I have no RF230 radios to
test with, RF230 does not implement these right now
* enable TX_ARET for frame retransmission limits greater than -1
Since RF230 has no operations to change CSMA parameters or frame retry
limits, RF230 will not be able to enter TX_ARET with this patch.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce new netlink attributes for SET_PHY_ATTRS:
* CSMA minimal backoff exponent
* CSMA maximal backoff exponent
* CSMA retry limit
* frame retransmission limit
The CSMA attributes shall correspond to minBE, maxBE and maxCSMABackoffs of
802.15.4, respectively. The frame retransmission shall correspond to
maxFrameRetries of 802.15.4, unless given as -1: then the old behaviour
of the stack shall apply. For RF2xy, the old behaviour is to not do
channel sensing at all and simply send *right now*, which is not
intended behaviour for most applications and actually prohibited for
some channel/page combinations.
For all values except frame retransmission limit, the defaults of
802.15.4 apply. Frame retransmission limits are set to -1 to indicate
backward-compatible behaviour.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
A documented erratum of the RF212 chip describes that some versions of
RF212 may not be properly reset by the standard reset procedure. The
described workaround seems to not fully work either; my RF212 chips will
not correctly receive any frames unless they are taken from RX mode to
TRX_OFF and back to RX mode, effectively forcing a up-down-up-cycle.
Going to TRX_OFF and to RX without intermediate state changes at least
once fixes this.
The same transition is allowed for RF230, so simply do it all the time.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since three of the four clear channel assesment modes make use of energy
detection, provide an API to set the energy detection threshold.
Driver support for this is available in at86rf230 for the RF212 chips.
Since for these chips the minimal energy detection threshold depends on
page and channel used, add a field to struct at86rf230_local that stores
the minimal threshold. Actual ED thresholds are configured as offsets
from this value.
For RF212, setting the ED threshold will not work before a channel/page
has been set due to the dependency of energy detection in the chip and
the actual channel/page selected.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The standard describes four modes of clear channel assesment: "energy
above threshold", "carrier found", and the logical and/or of these two.
Support for CCA mode setting is included in the at86rf230 driver,
predicated for RF212 chips.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Listen-before-talk is an alternative to CSMA in uncoordinated networks
and prescribed by european regulations if one wants to have a device
with radio duty cycles above 10% (or less in some bands). Add a phy
property to enable/disable LBT in the phy, including support in the
at86rf230 driver for RF212 chips.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The standard assigns channel 0 on page 2 to be 100kbps QPSK in the
868.3MHz band. Add support to the at86rf230 driver for this channel and
page, at the moment predicated only for the RF212 chip.
Per the datasheet, configurations for page 0, channels 0 to 10 and page
2, channels 0 to 10 differ only in the BPSK_QPSK bit. Support for
channels 1 to 10 is untested.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace the current u8 transmit_power in wpan_phy with s8 transmit_power.
The u8 field contained the actual tx power and a tolerance field,
which no physical radio every used. Adjust sysfs entries to keep
compatibility with userspace, give tolerances of +-1dB statically there.
This patch only adds support for this in the at86rf230 driver and the
RF212 chip. Configuration calculation for RF212 is also somewhat basic,
but does the job - the RF212 datasheet gives a large table with
suggested values for combinations of TX power and page/channel, if this
does not work well, we might have to copy the whole table.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current IEEE802.15.4 stack assumes that a radio will never deliver
packets with a bad CRC into the stack, as required by the standard.
at86rf230 driven radios violates this assumption because of another
incompatibility: devices are required to send ACKs if requested by a
sender, but RF2xx will only send ACKs from a special receive mode that
is currently not used by the driver.
Enable this receive mode to fix both bugs. Frames with bad CRCs will not
be received at all, and ACKs will be sent if so requested.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since the AT86RF2xy chips are mostly compatible, this is only a small
change to the actual driver code. The at86rf230 driver already supports the
RF212 in most places, only three small adjustments are required:
* force the initial state after P_ON to FORCE_TRX_OFF to work around a
documented erratum
* channels_supported depends on the frequency of the transceiver, and
thus is_rf212
* do early detection of chip version select an appropriate _ops struct
based on the chip version.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: phy: soft reset rework for 10G PHYs
As reported by Shaohui, 10G PHYs may have a slightly more complex reset
sequence for which a BMCR_RESET software reset might not suffice. This
patchset offers a solution for those by allowing them to implement their
own soft_reset() callback. Finally there is an update to the PHY library
Documentation to cover for the newly added callbacks of the PHY driver
structure.
Changes in v2:
- fixed callback testing
- fixed typo in Documentation
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The PHY library was missing a bunch of newly added PHY driver callbacks
along with a smallish description of what they do, fix that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As pointed out by Shaohui, most 10G PHYs out there have a non-standard
compliant software reset sequence, eventually something much more
complex than just toggling the BMCR_RESET bit. Allow PHY driver to
implement their own soft_reset() callback to deal with that. If no
callback is provided, call into genphy_soft_reset() which makes sure the
existing behavior is kept intact.
Reported-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
