Commit Graph

548 Commits

Author SHA1 Message Date
Oak Zeng
47a7fe5316 drm/amdkfd: Increase vcrat size for GPU
GPU cache info (part of virtual CRAT) size depends on CU number.
For arcturus, CU number has been increased. So the required memory
for vcrat also increases.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Yong Zhao <Yong.Zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:07 -05:00
Jay Cornwall
37f86a9b36 drm/amdkfd: Merge gfx9/arcturus trap handlers, add ACC VGPR save
ACC VGPRs are a secondary VGPR set of same size as the primary VGPRs.
Save them as a block immediately following VGPRs.

Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:06 -05:00
Oak Zeng
e30d90fca3 drm/amdkfd: Add device id for real asics
Add pci device ids.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Yong Zhao <Yong.Zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:06 -05:00
Oak Zeng
3baa24f0fc drm/amdkfd: Add arcturus CWSR trap handler
CWSR (compute wave save/restore) is used for
preempting compute queues.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:06 -05:00
Oak Zeng
b6689cf7b9 drm/amdkfd: Set number of xgmi optimized SDMA engines for arcturus
some sdma engines are optimized for xgmi on arcturus.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Yong Zhao <Yong.Zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:05 -05:00
Yong Zhao
0ad8c5e296 drm/amdkfd: Support MMHUB1 in kfd interrupt path
Handle interrupts for second mmhub.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:04 -05:00
Oak Zeng
35cdc81bfa drm/amdkfd: Fix sdma_bitmap overflow issue
In the original formula, when sdma queue number is 64,
the left shift overflows. Use an equivalence that won't
overflow.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:04 -05:00
Oak Zeng
3a68a638a9 drm/amdkfd: Change arcturus sdma engines number
Arcturus has 8 sdma engines

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:04 -05:00
Yong Zhao
49adcf8a6f amd/amdkfd: Add ASIC ARCTURUS to kfd
Add initial support for ARCTURUS to kfd.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:03 -05:00
Oak Zeng
2fb1e49fda drm/amdkfd: Support bigger gds size
Extend map_process and set_resources pm4 packet to support
bigger gds size for arcturus.

v2: Only make the change for v9

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:03 -05:00
Oak Zeng
3a65d14d25 drm/amdkfd: Extend PM4 packets to support 8 SDMA
Extend map_queue and unmap_queue PM4 packets to support 8
SDMA engines. The new format is backward compatible.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:03 -05:00
Joseph Greathouse
6a5d487754 drm/amdkfd: Remove GWS from process during uninit
If we shut down a process without having destroyed its GWS-using
queues, it is possible that GWS BO will still be in the process
BO list during the gpuvm destruction. This list should be empty
at that time, so we should remove the GWS allocation at the
process uninit point if it is still around.

Signed-off-by: Joseph Greathouse <Joseph.Greathouse@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-17 13:34:31 -05:00
Felix Kuehling
75ee64875e drm/amdkfd: Consistently apply noretry setting
Apply the same setting to SH_MEM_CONFIG and VM_CONTEXT1_CNTL. This
makes the noretry param no longer KFD-specific. On GFX10 I'm not
changing SH_MEM_CONFIG in this commit because GFX10 has different
retry behaviour in the SQ and I don't have a way to test it at the
moment.

Suggested-by: Christian König <Christian.Koenig@amd.com>
CC: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by : Shaoyun.liu < Shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-16 13:02:55 -05:00
Eric Huang
70df8273ca drm/amdkfd: fix cp hang in eviction
The cp hang occurs in OCL conformance test only on supermicro
platform which has 40 cores and the test generates 40 threads.
The root cause is race condition in non-protected flags.

The fix is to add flags of is_evicted and is_active(init_mqd())
into protected area.

Signed-off-by: Eric Huang <JinhuiEric.Huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-11 14:37:24 -05:00
Felix Kuehling
a5b1615529 drm/amdkfd: Disable idle optimization for chained runlist
This works around difficult-to-reproduce soft hangs on oversubscribed
runlists.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-03 14:32:10 -05:00
Felix Kuehling
7a049244a0 drm/amdkfd: Add chained_runlist_idle_disable flag to pm4_mes_runlist
New flag to disable an idle runlist optimization that is causing soft
hangs with some diffult-to-reproduce customer workloads. This will
serve as a workaround until the problem can be reproduced and the
root-cause determined.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-03 14:32:04 -05:00
Felix Kuehling
819ec5acf7 drm/amdkfd: Print a warning when the runlist becomes oversubscribed
Oversubscription of queues or processes results in poor performance
mostly because HWS blinbly schedules busy and idle queues, resulting
in poor occupancy if many queues are idle.

Let users know with a warning message when transitioning from a
non-oversubscribed to an oversubscribed runlist.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-03 14:31:26 -05:00
Jack Xiao
ba9e93c5fa drm/amdkfd: remove an unused variable
Just for cleanup.

Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-02 16:14:22 -05:00
Jack Xiao
aabf3a951c drm/amdkfd: remove duplicated PCIE atomics request
Since amdgpu has always requested PCIE atomics, kfd don't
need duplicated PCIE atomics enablement. Referring to amdgpu
request result is enough.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-01 14:54:47 -05:00
shaoyunl
a864e29d94 drm/amdkfd: remove unnecessary warning message on gpu reset
In XGMI configuration, more than one asic can be reset at same time,
kfd is able to handle this and no need to trigger the warning

Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-27 11:22:41 -05:00
Oak Zeng
d9848e149d drm/amdkfd: Set gws_mask to 64 bit 1s
Previous kfd doesn't use gws so this mask was set to 0.
Set it to 64 bit 1s because now kfd can use all 64 gws
resources.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-22 09:34:14 -05:00
Philip Cox
14328aa58c drm/amdkfd: Add navi10 support to amdkfd. (v3)
KFD (kernel fusion driver) is the kernel driver
for the compute backend for usermode compute
stack.

v2: squash in updates (Alex)
v3: squash in rebase fixes (Alex)

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Philip Cox <Philip.Cox@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-21 18:59:24 -05:00
Kent Russell
de9f26bbd3 drm/amdkfd: Add procfs-style information for KFD processes
Add a folder structure to /sys/class/kfd/kfd/ called proc which contains
subfolders, each representing an active KFD process' PID, containing 1
file: pasid.

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-20 11:34:00 -05:00
Oak Zeng
38bb4226ff drm/amdkfd: Fix sdma queue allocate race condition
SDMA queue allocation requires the dqm lock as it modify
the global dqm members. Enclose it in the dqm_lock.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Philip Yang <philip.yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-17 11:01:41 -05:00
Oak Zeng
6a6ef5ee25 drm/amdkfd: Fix a circular lock dependency
The idea to break the circular lock dependency is to temporarily drop
dqm lock before calling allocate_mqd. See callstack #1 below.

[   59.510149] [drm] Initialized amdgpu 3.30.0 20150101 for 0000:04:00.0 on minor 0

[  513.604034] ======================================================
[  513.604205] WARNING: possible circular locking dependency detected
[  513.604375] 4.18.0-kfd-root #2 Tainted: G        W
[  513.604530] ------------------------------------------------------
[  513.604699] kswapd0/611 is trying to acquire lock:
[  513.604840] 00000000d254022e (&dqm->lock_hidden){+.+.}, at: evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.605150]
               but task is already holding lock:
[  513.605307] 00000000961547fc (&anon_vma->rwsem){++++}, at: page_lock_anon_vma_read+0xe4/0x250
[  513.605540]
               which lock already depends on the new lock.

[  513.605747]
               the existing dependency chain (in reverse order) is:
[  513.605944]
               -> #4 (&anon_vma->rwsem){++++}:
[  513.606106]        __vma_adjust+0x147/0x7f0
[  513.606231]        __split_vma+0x179/0x190
[  513.606353]        mprotect_fixup+0x217/0x260
[  513.606553]        do_mprotect_pkey+0x211/0x380
[  513.606752]        __x64_sys_mprotect+0x1b/0x20
[  513.606954]        do_syscall_64+0x50/0x1a0
[  513.607149]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  513.607380]
               -> #3 (&mapping->i_mmap_rwsem){++++}:
[  513.607678]        rmap_walk_file+0x1f0/0x280
[  513.607887]        page_referenced+0xdd/0x180
[  513.608081]        shrink_page_list+0x853/0xcb0
[  513.608279]        shrink_inactive_list+0x33b/0x700
[  513.608483]        shrink_node_memcg+0x37a/0x7f0
[  513.608682]        shrink_node+0xd8/0x490
[  513.608869]        balance_pgdat+0x18b/0x3b0
[  513.609062]        kswapd+0x203/0x5c0
[  513.609241]        kthread+0x100/0x140
[  513.609420]        ret_from_fork+0x24/0x30
[  513.609607]
               -> #2 (fs_reclaim){+.+.}:
[  513.609883]        kmem_cache_alloc_trace+0x34/0x2e0
[  513.610093]        reservation_object_reserve_shared+0x139/0x300
[  513.610326]        ttm_bo_init_reserved+0x291/0x480 [ttm]
[  513.610567]        amdgpu_bo_do_create+0x1d2/0x650 [amdgpu]
[  513.610811]        amdgpu_bo_create+0x40/0x1f0 [amdgpu]
[  513.611041]        amdgpu_bo_create_reserved+0x249/0x2d0 [amdgpu]
[  513.611290]        amdgpu_bo_create_kernel+0x12/0x70 [amdgpu]
[  513.611584]        amdgpu_ttm_init+0x2cb/0x560 [amdgpu]
[  513.611823]        gmc_v9_0_sw_init+0x400/0x750 [amdgpu]
[  513.612491]        amdgpu_device_init+0x14eb/0x1990 [amdgpu]
[  513.612730]        amdgpu_driver_load_kms+0x78/0x290 [amdgpu]
[  513.612958]        drm_dev_register+0x111/0x1a0
[  513.613171]        amdgpu_pci_probe+0x11c/0x1e0 [amdgpu]
[  513.613389]        local_pci_probe+0x3f/0x90
[  513.613581]        pci_device_probe+0x102/0x1c0
[  513.613779]        driver_probe_device+0x2a7/0x480
[  513.613984]        __driver_attach+0x10a/0x110
[  513.614179]        bus_for_each_dev+0x67/0xc0
[  513.614372]        bus_add_driver+0x1eb/0x260
[  513.614565]        driver_register+0x5b/0xe0
[  513.614756]        do_one_initcall+0xac/0x357
[  513.614952]        do_init_module+0x5b/0x213
[  513.615145]        load_module+0x2542/0x2d30
[  513.615337]        __do_sys_finit_module+0xd2/0x100
[  513.615541]        do_syscall_64+0x50/0x1a0
[  513.615731]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  513.615963]
               -> #1 (reservation_ww_class_mutex){+.+.}:
[  513.616293]        amdgpu_amdkfd_alloc_gtt_mem+0xcf/0x2c0 [amdgpu]
[  513.616554]        init_mqd+0x223/0x260 [amdgpu]
[  513.616779]        create_queue_nocpsch+0x4d9/0x600 [amdgpu]
[  513.617031]        pqm_create_queue+0x37c/0x520 [amdgpu]
[  513.617270]        kfd_ioctl_create_queue+0x2f9/0x650 [amdgpu]
[  513.617522]        kfd_ioctl+0x202/0x350 [amdgpu]
[  513.617724]        do_vfs_ioctl+0x9f/0x6c0
[  513.617914]        ksys_ioctl+0x66/0x70
[  513.618095]        __x64_sys_ioctl+0x16/0x20
[  513.618286]        do_syscall_64+0x50/0x1a0
[  513.618476]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  513.618695]
               -> #0 (&dqm->lock_hidden){+.+.}:
[  513.618984]        __mutex_lock+0x98/0x970
[  513.619197]        evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.619459]        kfd_process_evict_queues+0x3b/0xb0 [amdgpu]
[  513.619710]        kgd2kfd_quiesce_mm+0x1c/0x40 [amdgpu]
[  513.620103]        amdgpu_amdkfd_evict_userptr+0x38/0x70 [amdgpu]
[  513.620363]        amdgpu_mn_invalidate_range_start_hsa+0xa6/0xc0 [amdgpu]
[  513.620614]        __mmu_notifier_invalidate_range_start+0x70/0xb0
[  513.620851]        try_to_unmap_one+0x7fc/0x8f0
[  513.621049]        rmap_walk_anon+0x121/0x290
[  513.621242]        try_to_unmap+0x93/0xf0
[  513.621428]        shrink_page_list+0x606/0xcb0
[  513.621625]        shrink_inactive_list+0x33b/0x700
[  513.621835]        shrink_node_memcg+0x37a/0x7f0
[  513.622034]        shrink_node+0xd8/0x490
[  513.622219]        balance_pgdat+0x18b/0x3b0
[  513.622410]        kswapd+0x203/0x5c0
[  513.622589]        kthread+0x100/0x140
[  513.622769]        ret_from_fork+0x24/0x30
[  513.622957]
               other info that might help us debug this:

[  513.623354] Chain exists of:
                 &dqm->lock_hidden --> &mapping->i_mmap_rwsem --> &anon_vma->rwsem

[  513.623900]  Possible unsafe locking scenario:

[  513.624189]        CPU0                    CPU1
[  513.624397]        ----                    ----
[  513.624594]   lock(&anon_vma->rwsem);
[  513.624771]                                lock(&mapping->i_mmap_rwsem);
[  513.625020]                                lock(&anon_vma->rwsem);
[  513.625253]   lock(&dqm->lock_hidden);
[  513.625433]
                *** DEADLOCK ***

[  513.625783] 3 locks held by kswapd0/611:
[  513.625967]  #0: 00000000f14edf84 (fs_reclaim){+.+.}, at: __fs_reclaim_acquire+0x5/0x30
[  513.626309]  #1: 00000000961547fc (&anon_vma->rwsem){++++}, at: page_lock_anon_vma_read+0xe4/0x250
[  513.626671]  #2: 0000000067b5cd12 (srcu){....}, at: __mmu_notifier_invalidate_range_start+0x5/0xb0
[  513.627037]
               stack backtrace:
[  513.627292] CPU: 0 PID: 611 Comm: kswapd0 Tainted: G        W         4.18.0-kfd-root #2
[  513.627632] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[  513.627990] Call Trace:
[  513.628143]  dump_stack+0x7c/0xbb
[  513.628315]  print_circular_bug.isra.37+0x21b/0x228
[  513.628581]  __lock_acquire+0xf7d/0x1470
[  513.628782]  ? unwind_next_frame+0x6c/0x4f0
[  513.628974]  ? lock_acquire+0xec/0x1e0
[  513.629154]  lock_acquire+0xec/0x1e0
[  513.629357]  ? evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.629587]  __mutex_lock+0x98/0x970
[  513.629790]  ? evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.630047]  ? evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.630309]  ? evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.630562]  evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.630816]  kfd_process_evict_queues+0x3b/0xb0 [amdgpu]
[  513.631057]  kgd2kfd_quiesce_mm+0x1c/0x40 [amdgpu]
[  513.631288]  amdgpu_amdkfd_evict_userptr+0x38/0x70 [amdgpu]
[  513.631536]  amdgpu_mn_invalidate_range_start_hsa+0xa6/0xc0 [amdgpu]
[  513.632076]  __mmu_notifier_invalidate_range_start+0x70/0xb0
[  513.632299]  try_to_unmap_one+0x7fc/0x8f0
[  513.632487]  ? page_lock_anon_vma_read+0x68/0x250
[  513.632690]  rmap_walk_anon+0x121/0x290
[  513.632875]  try_to_unmap+0x93/0xf0
[  513.633050]  ? page_remove_rmap+0x330/0x330
[  513.633239]  ? rcu_read_unlock+0x60/0x60
[  513.633422]  ? page_get_anon_vma+0x160/0x160
[  513.633613]  shrink_page_list+0x606/0xcb0
[  513.633800]  shrink_inactive_list+0x33b/0x700
[  513.633997]  shrink_node_memcg+0x37a/0x7f0
[  513.634186]  ? shrink_node+0xd8/0x490
[  513.634363]  shrink_node+0xd8/0x490
[  513.634537]  balance_pgdat+0x18b/0x3b0
[  513.634718]  kswapd+0x203/0x5c0
[  513.634887]  ? wait_woken+0xb0/0xb0
[  513.635062]  kthread+0x100/0x140
[  513.635231]  ? balance_pgdat+0x3b0/0x3b0
[  513.635414]  ? kthread_delayed_work_timer_fn+0x80/0x80
[  513.635626]  ret_from_fork+0x24/0x30
[  513.636042] Evicting PASID 32768 queues
[  513.936236] Restoring PASID 32768 queues
[  524.708912] Evicting PASID 32768 queues
[  524.999875] Restoring PASID 32768 queues

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Philip Yang <philip.yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-17 11:01:41 -05:00
Oak Zeng
d091bc0a70 Revert "drm/amdkfd: Fix a circular lock dependency"
This reverts commit 06b89b38f3.
This fix is not proper. allocate_mqd can't be moved before
allocate_sdma_queue as it depends on q->properties->sdma_id
set in later.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Philip Yang <philip.yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-17 11:01:41 -05:00
Oak Zeng
70d488fb3f Revert "drm/amdkfd: Fix sdma queue allocate race condition"
This reverts commit f77dac6cd6.
This fix is not proper. allocate_mqd can't be moved before
allocate_sdma_queue as it depends on q->properties->sdma_id
set in later.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Philip Yang <philip.yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-17 11:01:41 -05:00
Greg Kroah-Hartman
641d30035c amdkfd: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Oded Gabbay <oded.gabbay@gmail.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-13 13:59:49 -05:00
Oak Zeng
465ab9e02a drm/amdkfd: Add device to topology after it is completely inited
We can't have devices that are not completely initialized in kfd topology.
Otherwise it is a race condition when user access not completely
initialized device. This also addresses a kfd_topology_add_device accessing
NULL dqm pointer issue.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:57:33 -05:00
Oak Zeng
1ae99eab34 drm/amdkfd: Initialize HSA_CAP_ATS_PRESENT capability in topology codes
Move HSA_CAP_ATS_PRESENT initialization logic from kfd iommu codes to
kfd topology codes. This removes kfd_iommu_device_init's dependency
on kfd_topology_add_device. Also remove duplicate code setting the
same.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:57:25 -05:00
Oak Zeng
f77dac6cd6 drm/amdkfd: Fix sdma queue allocate race condition
SDMA queue allocation requires the dqm lock at it modify
the global dqm members. Move up the dqm_lock so sdma
queue allocation is enclosed in the critical section. Move
mqd allocation out of critical section to avoid circular
lock dependency.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:57:18 -05:00
Oak Zeng
06b89b38f3 drm/amdkfd: Fix a circular lock dependency
The idea to break the circular lock dependency is to move allocate_mqd
out of dqm lock protection. See callstack #1 below.

[   59.510149] [drm] Initialized amdgpu 3.30.0 20150101 for 0000:04:00.0 on minor 0

[  513.604034] ======================================================
[  513.604205] WARNING: possible circular locking dependency detected
[  513.604375] 4.18.0-kfd-root #2 Tainted: G        W
[  513.604530] ------------------------------------------------------
[  513.604699] kswapd0/611 is trying to acquire lock:
[  513.604840] 00000000d254022e (&dqm->lock_hidden){+.+.}, at: evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.605150]
               but task is already holding lock:
[  513.605307] 00000000961547fc (&anon_vma->rwsem){++++}, at: page_lock_anon_vma_read+0xe4/0x250
[  513.605540]
               which lock already depends on the new lock.

[  513.605747]
               the existing dependency chain (in reverse order) is:
[  513.605944]
               -> #4 (&anon_vma->rwsem){++++}:
[  513.606106]        __vma_adjust+0x147/0x7f0
[  513.606231]        __split_vma+0x179/0x190
[  513.606353]        mprotect_fixup+0x217/0x260
[  513.606553]        do_mprotect_pkey+0x211/0x380
[  513.606752]        __x64_sys_mprotect+0x1b/0x20
[  513.606954]        do_syscall_64+0x50/0x1a0
[  513.607149]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  513.607380]
               -> #3 (&mapping->i_mmap_rwsem){++++}:
[  513.607678]        rmap_walk_file+0x1f0/0x280
[  513.607887]        page_referenced+0xdd/0x180
[  513.608081]        shrink_page_list+0x853/0xcb0
[  513.608279]        shrink_inactive_list+0x33b/0x700
[  513.608483]        shrink_node_memcg+0x37a/0x7f0
[  513.608682]        shrink_node+0xd8/0x490
[  513.608869]        balance_pgdat+0x18b/0x3b0
[  513.609062]        kswapd+0x203/0x5c0
[  513.609241]        kthread+0x100/0x140
[  513.609420]        ret_from_fork+0x24/0x30
[  513.609607]
               -> #2 (fs_reclaim){+.+.}:
[  513.609883]        kmem_cache_alloc_trace+0x34/0x2e0
[  513.610093]        reservation_object_reserve_shared+0x139/0x300
[  513.610326]        ttm_bo_init_reserved+0x291/0x480 [ttm]
[  513.610567]        amdgpu_bo_do_create+0x1d2/0x650 [amdgpu]
[  513.610811]        amdgpu_bo_create+0x40/0x1f0 [amdgpu]
[  513.611041]        amdgpu_bo_create_reserved+0x249/0x2d0 [amdgpu]
[  513.611290]        amdgpu_bo_create_kernel+0x12/0x70 [amdgpu]
[  513.611584]        amdgpu_ttm_init+0x2cb/0x560 [amdgpu]
[  513.611823]        gmc_v9_0_sw_init+0x400/0x750 [amdgpu]
[  513.612491]        amdgpu_device_init+0x14eb/0x1990 [amdgpu]
[  513.612730]        amdgpu_driver_load_kms+0x78/0x290 [amdgpu]
[  513.612958]        drm_dev_register+0x111/0x1a0
[  513.613171]        amdgpu_pci_probe+0x11c/0x1e0 [amdgpu]
[  513.613389]        local_pci_probe+0x3f/0x90
[  513.613581]        pci_device_probe+0x102/0x1c0
[  513.613779]        driver_probe_device+0x2a7/0x480
[  513.613984]        __driver_attach+0x10a/0x110
[  513.614179]        bus_for_each_dev+0x67/0xc0
[  513.614372]        bus_add_driver+0x1eb/0x260
[  513.614565]        driver_register+0x5b/0xe0
[  513.614756]        do_one_initcall+0xac/0x357
[  513.614952]        do_init_module+0x5b/0x213
[  513.615145]        load_module+0x2542/0x2d30
[  513.615337]        __do_sys_finit_module+0xd2/0x100
[  513.615541]        do_syscall_64+0x50/0x1a0
[  513.615731]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  513.615963]
               -> #1 (reservation_ww_class_mutex){+.+.}:
[  513.616293]        amdgpu_amdkfd_alloc_gtt_mem+0xcf/0x2c0 [amdgpu]
[  513.616554]        init_mqd+0x223/0x260 [amdgpu]
[  513.616779]        create_queue_nocpsch+0x4d9/0x600 [amdgpu]
[  513.617031]        pqm_create_queue+0x37c/0x520 [amdgpu]
[  513.617270]        kfd_ioctl_create_queue+0x2f9/0x650 [amdgpu]
[  513.617522]        kfd_ioctl+0x202/0x350 [amdgpu]
[  513.617724]        do_vfs_ioctl+0x9f/0x6c0
[  513.617914]        ksys_ioctl+0x66/0x70
[  513.618095]        __x64_sys_ioctl+0x16/0x20
[  513.618286]        do_syscall_64+0x50/0x1a0
[  513.618476]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  513.618695]
               -> #0 (&dqm->lock_hidden){+.+.}:
[  513.618984]        __mutex_lock+0x98/0x970
[  513.619197]        evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.619459]        kfd_process_evict_queues+0x3b/0xb0 [amdgpu]
[  513.619710]        kgd2kfd_quiesce_mm+0x1c/0x40 [amdgpu]
[  513.620103]        amdgpu_amdkfd_evict_userptr+0x38/0x70 [amdgpu]
[  513.620363]        amdgpu_mn_invalidate_range_start_hsa+0xa6/0xc0 [amdgpu]
[  513.620614]        __mmu_notifier_invalidate_range_start+0x70/0xb0
[  513.620851]        try_to_unmap_one+0x7fc/0x8f0
[  513.621049]        rmap_walk_anon+0x121/0x290
[  513.621242]        try_to_unmap+0x93/0xf0
[  513.621428]        shrink_page_list+0x606/0xcb0
[  513.621625]        shrink_inactive_list+0x33b/0x700
[  513.621835]        shrink_node_memcg+0x37a/0x7f0
[  513.622034]        shrink_node+0xd8/0x490
[  513.622219]        balance_pgdat+0x18b/0x3b0
[  513.622410]        kswapd+0x203/0x5c0
[  513.622589]        kthread+0x100/0x140
[  513.622769]        ret_from_fork+0x24/0x30
[  513.622957]
               other info that might help us debug this:

[  513.623354] Chain exists of:
                 &dqm->lock_hidden --> &mapping->i_mmap_rwsem --> &anon_vma->rwsem

[  513.623900]  Possible unsafe locking scenario:

[  513.624189]        CPU0                    CPU1
[  513.624397]        ----                    ----
[  513.624594]   lock(&anon_vma->rwsem);
[  513.624771]                                lock(&mapping->i_mmap_rwsem);
[  513.625020]                                lock(&anon_vma->rwsem);
[  513.625253]   lock(&dqm->lock_hidden);
[  513.625433]
                *** DEADLOCK ***

[  513.625783] 3 locks held by kswapd0/611:
[  513.625967]  #0: 00000000f14edf84 (fs_reclaim){+.+.}, at: __fs_reclaim_acquire+0x5/0x30
[  513.626309]  #1: 00000000961547fc (&anon_vma->rwsem){++++}, at: page_lock_anon_vma_read+0xe4/0x250
[  513.626671]  #2: 0000000067b5cd12 (srcu){....}, at: __mmu_notifier_invalidate_range_start+0x5/0xb0
[  513.627037]
               stack backtrace:
[  513.627292] CPU: 0 PID: 611 Comm: kswapd0 Tainted: G        W         4.18.0-kfd-root #2
[  513.627632] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[  513.627990] Call Trace:
[  513.628143]  dump_stack+0x7c/0xbb
[  513.628315]  print_circular_bug.isra.37+0x21b/0x228
[  513.628581]  __lock_acquire+0xf7d/0x1470
[  513.628782]  ? unwind_next_frame+0x6c/0x4f0
[  513.628974]  ? lock_acquire+0xec/0x1e0
[  513.629154]  lock_acquire+0xec/0x1e0
[  513.629357]  ? evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.629587]  __mutex_lock+0x98/0x970
[  513.629790]  ? evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.630047]  ? evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.630309]  ? evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.630562]  evict_process_queues_nocpsch+0x26/0x140 [amdgpu]
[  513.630816]  kfd_process_evict_queues+0x3b/0xb0 [amdgpu]
[  513.631057]  kgd2kfd_quiesce_mm+0x1c/0x40 [amdgpu]
[  513.631288]  amdgpu_amdkfd_evict_userptr+0x38/0x70 [amdgpu]
[  513.631536]  amdgpu_mn_invalidate_range_start_hsa+0xa6/0xc0 [amdgpu]
[  513.632076]  __mmu_notifier_invalidate_range_start+0x70/0xb0
[  513.632299]  try_to_unmap_one+0x7fc/0x8f0
[  513.632487]  ? page_lock_anon_vma_read+0x68/0x250
[  513.632690]  rmap_walk_anon+0x121/0x290
[  513.632875]  try_to_unmap+0x93/0xf0
[  513.633050]  ? page_remove_rmap+0x330/0x330
[  513.633239]  ? rcu_read_unlock+0x60/0x60
[  513.633422]  ? page_get_anon_vma+0x160/0x160
[  513.633613]  shrink_page_list+0x606/0xcb0
[  513.633800]  shrink_inactive_list+0x33b/0x700
[  513.633997]  shrink_node_memcg+0x37a/0x7f0
[  513.634186]  ? shrink_node+0xd8/0x490
[  513.634363]  shrink_node+0xd8/0x490
[  513.634537]  balance_pgdat+0x18b/0x3b0
[  513.634718]  kswapd+0x203/0x5c0
[  513.634887]  ? wait_woken+0xb0/0xb0
[  513.635062]  kthread+0x100/0x140
[  513.635231]  ? balance_pgdat+0x3b0/0x3b0
[  513.635414]  ? kthread_delayed_work_timer_fn+0x80/0x80
[  513.635626]  ret_from_fork+0x24/0x30
[  513.636042] Evicting PASID 32768 queues
[  513.936236] Restoring PASID 32768 queues
[  524.708912] Evicting PASID 32768 queues
[  524.999875] Restoring PASID 32768 queues

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:57:07 -05:00
Oak Zeng
8636e53c47 drm/amdkfd: Separate mqd allocation and initialization
Introduce a new mqd allocation interface and split the original
init_mqd function into two functions: allocate_mqd and init_mqd.
Also renamed uninit_mqd to free_mqd. This is preparation work to
fix a circular lock dependency.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:56:59 -05:00
Oak Zeng
d39b773734 drm/amdkfd: Refactor create_queue_nocpsch
This is prepare work to fix a circular lock dependency.
No logic change

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:56:53 -05:00
Oak Zeng
2ff528190f drm/amdkfd: Only load sdma mqd when queue is active
Also calls load_mqd with current->mm struct. The mm
struct is used to read back user wptr of the queue.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:56:46 -05:00
Oak Zeng
eec0b4cf92 drm/amdkfd: Only initialize sdma vm for sdma queues
Don't do the same for compute queues

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:56:35 -05:00
Jay Cornwall
77866d5416 drm/amdkfd: Implement queue priority controls for gfx9
Ported from gfx8, no changes in register setup.

Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:35:25 -05:00
Oak Zeng
0ccbc7cdf5 drm/amdkfd: CP queue priority controls
Translate queue priority into pipe priority and write to MQDs.
The priority values are used to perform queue and pipe arbitration.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 12:35:15 -05:00
Felix Kuehling
bb2d2128a5 drm/amdkfd: Simplify eviction state logic
Always mark evicted queues with q->properties.is_evicted = true, even
queues that are inactive for other reason. This simplifies maintaining
the eviction state as it doesn't require updating is_evicted when other
queue activation conditions change.

On the other hand, we now need to check those other queue activation
conditions whenever an evicted queues is restored. To minimize code
duplication, move the queue activation check into a macro so it can be
maintained in one central place.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Philip Cox <Philip.Cox@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-11 11:57:45 -05:00
Oak Zeng
443e902eee drm/amdkfd: Return proper error code for gws alloc API
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-31 10:39:33 -05:00
Dave Airlie
91c1ead6ae Merge branch 'drm-next-5.3' of git://people.freedesktop.org/~agd5f/linux into drm-next
New stuff for 5.3:
- Add new thermal sensors for vega asics
- Various RAS fixes
- Add sysfs interface for memory interface utilization
- Use HMM rather than mmu notifier for user pages
- Expose xgmi topology via kfd
- SR-IOV fixes
- Fixes for manual driver reload
- Add unique identifier for vega asics
- Clean up user fence handling with UVD/VCE/VCN blocks
- Convert DC to use core bpc attribute rather than a custom one
- Add GWS support for KFD
- Vega powerplay improvements
- Add CRC support for DCE 12
- SR-IOV support for new security policy
- Various cleanups

From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190529220944.14464-1-alexander.deucher@amd.com
2019-05-31 10:04:39 +10:00
Colin Ian King
cf401e2856 drm/amdkfd: fix null pointer dereference on dev
The pointer dev is set to null yet it is being dereferenced when
checking dev->dqm->sched_policy.  Fix this by performing the check
on dev->dqm->sched_policy after dev has been assigned and null
checked.  Also remove the redundant null assignment to dev.

Addresses-Coverity: ("Explicit null dereference")
Fixes: 1a058c3376 ("drm/amdkfd: New IOCTL to allocate queue GWS")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-29 16:50:09 -05:00
Oak Zeng
0235097371 drm/amdkfd: PM4 packets change to support GWS
Add a field in map_queues packet to indicate whether
this is a gws control queue. Only one queue per process
can be gws control queue. Change num_gws field in
map_process packet to 7 bits

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-28 14:44:37 -05:00
Oak Zeng
1a058c3376 drm/amdkfd: New IOCTL to allocate queue GWS
Add a new kfd ioctl to allocate queue GWS. Queue
GWS is released on queue destroy.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-28 14:44:31 -05:00
Oak Zeng
eb82da1dc4 drm/amdkfd: Add function to set queue gws
Add functions in process queue manager to
set/unset queue gws. Also set process's number
of gws used. Currently only one queue in
process can use and use all gws.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-28 14:44:24 -05:00
Oak Zeng
e09d4fc8db drm/amdkfd: Allocate gws on device initialization
On device initialization, KFD allocates all (64) gws which
is shared by all KFD processes.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-28 14:44:11 -05:00
Oak Zeng
29e764621b drm/amdkfd: Add gws number to kfd topology node properties
Add amdgpu_amdkfd interface to get num_gws and add num_gws
to /sys/class/kfd/kfd/topology/nodes/x/properties. Only report
num_gws if MEC FW support GWS barriers. Currently it is
determined by a module parameter which will be replaced
with MEC FW version check when firmware is ready.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-28 14:43:58 -05:00
Oak Zeng
d33ea570bd drm/amdkfd: Use kfd fd to mmap mmio
TTM doesn't support CPU mapping of sg type bo (under which
mmio bo is created). Switch mmaping of mmio page to kfd
device file.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Acked-by: Christian Konig <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-28 14:43:51 -05:00
Amber Lin
460960587a drm/amdkfd: Add domain number into gpu_id
A multi-socket server can have multiple PCIe segments so BFD is not enough
to distingush each GPU. Also add domain number into account when generating
gpu_id.

Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-24 12:21:03 -05:00
Kent Russell
ed81cd6e0e drm/amdkfd: Add VegaM support
Add the VegaM information to KFD

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-24 12:21:03 -05:00