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Author SHA1 Message Date
Eric Huang
22dd871e2b drm/amdkfd: add asic support for SDMA 6.0.2
It is inherited from SDMA 6.0.0.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-05-05 16:52:30 -04:00
Mukul Joshi
cc009e613d drm/amdkfd: Add KFD support for soc21 v3
Add initial support for soc21 in KFD compute
driver (Mukul)
- Add new definition for soc21 device.
- Add new file for amdgpu-kfd interface for GFX11 family.
- Add new file for queue management, interrupt handling,
  mqd management for GFX11 family in KFD driver.
- Related changes/updates for soc21 device in
  KFD driver.
- Repurpose last 2 entries of SDMA MQD for driver use.

v2: Add an optional argument into update queue operation (Mukul)

v3: Switch to ip version check, replace kgd_dev with
    amdgpu_device (Hawking)

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-05-04 10:43:54 -04:00
Alex Deucher
3b9186fa86 drm/amdkfd: add helper to generate cache info from gfx config
Rather than using hardcoded tables, we can use the gfx and
gmc config pulled from the IP discovery table to generate the
cache configuration.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-05-04 10:43:54 -04:00
Mukul Joshi
b179fc28d5 drm/amdkfd: Fix circular lock dependency warning
[  168.544078] ======================================================
[  168.550309] WARNING: possible circular locking dependency detected
[  168.556523] 5.16.0-kfd-fkuehlin #148 Tainted: G            E
[  168.562558] ------------------------------------------------------
[  168.568764] kfdtest/3479 is trying to acquire lock:
[  168.573672] ffffffffc0927a70 (&topology_lock){++++}-{3:3}, at:
		kfd_topology_device_by_id+0x16/0x60 [amdgpu] [  168.583663]
                but task is already holding lock:
[  168.589529] ffff97d303dee668 (&mm->mmap_lock#2){++++}-{3:3}, at:
		vm_mmap_pgoff+0xa9/0x180 [  168.597755]
                which lock already depends on the new lock.

[  168.605970]
                the existing dependency chain (in reverse order) is:
[  168.613487]
                -> #3 (&mm->mmap_lock#2){++++}-{3:3}:
[  168.619700]        lock_acquire+0xca/0x2e0
[  168.623814]        down_read+0x3e/0x140
[  168.627676]        do_user_addr_fault+0x40d/0x690
[  168.632399]        exc_page_fault+0x6f/0x270
[  168.636692]        asm_exc_page_fault+0x1e/0x30
[  168.641249]        filldir64+0xc8/0x1e0
[  168.645115]        call_filldir+0x7c/0x110
[  168.649238]        ext4_readdir+0x58e/0x940
[  168.653442]        iterate_dir+0x16a/0x1b0
[  168.657558]        __x64_sys_getdents64+0x83/0x140
[  168.662375]        do_syscall_64+0x35/0x80
[  168.666492]        entry_SYSCALL_64_after_hwframe+0x44/0xae
[  168.672095]
                -> #2 (&type->i_mutex_dir_key#6){++++}-{3:3}:
[  168.679008]        lock_acquire+0xca/0x2e0
[  168.683122]        down_read+0x3e/0x140
[  168.686982]        path_openat+0x5b2/0xa50
[  168.691095]        do_file_open_root+0xfc/0x190
[  168.695652]        file_open_root+0xd8/0x1b0
[  168.702010]        kernel_read_file_from_path_initns+0xc4/0x140
[  168.709542]        _request_firmware+0x2e9/0x5e0
[  168.715741]        request_firmware+0x32/0x50
[  168.721667]        amdgpu_cgs_get_firmware_info+0x370/0xdd0 [amdgpu]
[  168.730060]        smu7_upload_smu_firmware_image+0x53/0x190 [amdgpu]
[  168.738414]        fiji_start_smu+0xcf/0x4e0 [amdgpu]
[  168.745539]        pp_dpm_load_fw+0x21/0x30 [amdgpu]
[  168.752503]        amdgpu_pm_load_smu_firmware+0x4b/0x80 [amdgpu]
[  168.760698]        amdgpu_device_fw_loading+0xb8/0x140 [amdgpu]
[  168.768412]        amdgpu_device_init.cold+0xdf6/0x1716 [amdgpu]
[  168.776285]        amdgpu_driver_load_kms+0x15/0x120 [amdgpu]
[  168.784034]        amdgpu_pci_probe+0x19b/0x3a0 [amdgpu]
[  168.791161]        local_pci_probe+0x40/0x80
[  168.797027]        work_for_cpu_fn+0x10/0x20
[  168.802839]        process_one_work+0x273/0x5b0
[  168.808903]        worker_thread+0x20f/0x3d0
[  168.814700]        kthread+0x176/0x1a0
[  168.819968]        ret_from_fork+0x1f/0x30
[  168.825563]
                -> #1 (&adev->pm.mutex){+.+.}-{3:3}:
[  168.834721]        lock_acquire+0xca/0x2e0
[  168.840364]        __mutex_lock+0xa2/0x930
[  168.846020]        amdgpu_dpm_get_mclk+0x37/0x60 [amdgpu]
[  168.853257]        amdgpu_amdkfd_get_local_mem_info+0xba/0xe0 [amdgpu]
[  168.861547]        kfd_create_vcrat_image_gpu+0x1b1/0xbb0 [amdgpu]
[  168.869478]        kfd_create_crat_image_virtual+0x447/0x510 [amdgpu]
[  168.877884]        kfd_topology_add_device+0x5c8/0x6f0 [amdgpu]
[  168.885556]        kgd2kfd_device_init.cold+0x385/0x4c5 [amdgpu]
[  168.893347]        amdgpu_amdkfd_device_init+0x138/0x180 [amdgpu]
[  168.901177]        amdgpu_device_init.cold+0x141b/0x1716 [amdgpu]
[  168.909025]        amdgpu_driver_load_kms+0x15/0x120 [amdgpu]
[  168.916458]        amdgpu_pci_probe+0x19b/0x3a0 [amdgpu]
[  168.923442]        local_pci_probe+0x40/0x80
[  168.929249]        work_for_cpu_fn+0x10/0x20
[  168.935008]        process_one_work+0x273/0x5b0
[  168.940944]        worker_thread+0x20f/0x3d0
[  168.946623]        kthread+0x176/0x1a0
[  168.951765]        ret_from_fork+0x1f/0x30
[  168.957277]
                -> #0 (&topology_lock){++++}-{3:3}:
[  168.965993]        check_prev_add+0x8f/0xbf0
[  168.971613]        __lock_acquire+0x1299/0x1ca0
[  168.977485]        lock_acquire+0xca/0x2e0
[  168.982877]        down_read+0x3e/0x140
[  168.987975]        kfd_topology_device_by_id+0x16/0x60 [amdgpu]
[  168.995583]        kfd_device_by_id+0xa/0x20 [amdgpu]
[  169.002180]        kfd_mmap+0x95/0x200 [amdgpu]
[  169.008293]        mmap_region+0x337/0x5a0
[  169.013679]        do_mmap+0x3aa/0x540
[  169.018678]        vm_mmap_pgoff+0xdc/0x180
[  169.024095]        ksys_mmap_pgoff+0x186/0x1f0
[  169.029734]        do_syscall_64+0x35/0x80
[  169.035005]        entry_SYSCALL_64_after_hwframe+0x44/0xae
[  169.041754]
                other info that might help us debug this:

[  169.053276] Chain exists of:
                  &topology_lock --> &type->i_mutex_dir_key#6 --> &mm->mmap_lock#2

[  169.068389]  Possible unsafe locking scenario:

[  169.076661]        CPU0                    CPU1
[  169.082383]        ----                    ----
[  169.088087]   lock(&mm->mmap_lock#2);
[  169.092922]                                lock(&type->i_mutex_dir_key#6);
[  169.100975]                                lock(&mm->mmap_lock#2);
[  169.108320]   lock(&topology_lock);
[  169.112957]
                 *** DEADLOCK ***

This commit fixes the deadlock warning by ensuring pm.mutex is not
held while holding the topology lock. For this, kfd_local_mem_info
is moved into the KFD dev struct and filled during device init.
This cached value can then be used instead of querying the value
again and again.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-28 17:45:40 -04:00
Mukul Joshi
98447635b5 drm/amdkfd: Fix updating IO links during device removal
The logic to update the IO links when a KFD device
is removed was not correct as it would miss updating
the proximity domain values for some nodes where the
node_from and node_to both were greater values than the
proximity domain value of the KFD device being removed
from topology.

Fixes: 46d18d510d ("drm/amdkfd: Cleanup IO links during KFD device removal")
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-28 17:44:35 -04:00
Christophe JAILLET
b8b9ba58b6 drm/amdkfd: Use non-atomic bitmap functions when possible
All uses of the 'kfd->gtt_sa_bitmap' bitmap are protected with the
'kfd->gtt_sa_lock' mutex.

So:
   - prefer the non-atomic '__set_bit()' function
   - use the non-atomic 'bitmap_[set|clear]()' functions instead of
     equivalent 'for' loops. These functions can work on several bits at a
     time

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-28 17:44:29 -04:00
Christophe JAILLET
f43a9f18e0 drm/amdkfd: Use bitmap_zalloc() when applicable
'kfd->gtt_sa_bitmap' is a bitmap. So use 'bitmap_zalloc()' to simplify
code, improve the semantic and avoid some open-coded arithmetic in
allocator arguments.

Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
consistency.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-28 17:44:23 -04:00
Dave Airlie
4eaf02db9c Merge tag 'amd-drm-next-5.19-2022-04-22' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-5.19-2022-04-22:

amdgpu:
- SMU message documentation update
- Misc code cleanups
- Documenation updates
- PSP TA updates
- Runtime PM regression fix
- SR-IOV header cleanup
- Misc fixes

amdkfd:
- TLB flush fixes
- GWS fixes
- CRIU GWS support

radeon:
- Misc code cleanups

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220422150049.5859-1-alexander.deucher@amd.com
2022-04-28 14:56:04 +10:00
Dave Airlie
dbe946287e Merge tag 'amd-drm-next-5.19-2022-04-15' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-5.19-2022-04-15:

amdgpu:
- USB-C updates
- GPUVM updates
- TMZ fixes for RV
- DCN 3.1 pstate fixes
- Display z state fixes
- RAS fixes
- Misc code cleanups and spelling fixes
- More DC FP rework
- GPUVM TLB handling rework
- Power management sysfs code cleanup
- Add RAS support for VCN
- Backlight fix
- Add unique id support for more asics
- Misc display updates
- SR-IOV fixes
- Extend CG and PG flags to 64 bits
- Enable VCN clk sysfs nodes for navi12

amdkfd:
- Fix IO link cleanup during device removal
- RAS fixes
- Retry fault fixes
- Asynchronously free events
- SVM fixes

radeon:
- Drop some dead code
- Misc code cleanups

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220415135144.5700-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
2022-04-28 14:33:20 +10:00
Philip Yang
601354f344 drm/amdkfd: Update mapping if range attributes changed
Change SVM range mapping flags or access attributes don't trigger
migration, if range is already mapped on GPUs we should update GPU
mapping and pass flush_tlb flag true to amdgpu vm.

Change SVM range preferred_loc or migration granularity don't need
update GPU mapping, skip the validate_and_map.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-26 11:42:59 -04:00
Philip Yang
6b9c63a6eb drm/amdkfd: Add SVM range mapped_to_gpu flag
To avoid unnecessary unmap SVM range from GPUs if range is not mapped on
GPUs when migrating the range. This flag will also be used to flush TLB
when updating the existing mapping on GPUs.

It is protected by prange->migrate_mutex and mmap read lock in MMU
notifier callback.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-26 11:42:44 -04:00
Felix Kuehling
c3eb12dff0 drm/amdkfd: Ignore bogus signals from MEC efficiently
MEC firmware sometimes sends signal interrupts without a valid context ID
on end of pipe events that don't intend to signal any HSA signals.
This triggers the slow path in kfd_signal_event_interrupt that scans the
entire event page for signaled events. Detect these signals in the top
half interrupt handler to stop processing them as early as possible.

Because we now always treat event ID 0 as invalid, reserve that ID during
process initialization.

v2: Update firmware version checks to support more GPUs

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-25 17:05:48 -04:00
Yang Wang
cc9d82fc96 drm/amdkfd: use kvcalloc() instead of kvmalloc() in kfd_migrate
simplify programming with existing functions.

Signed-off-by: Yang Wang <KevinYang.Wang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-22 14:49:54 -04:00
Lang Yu
515d7cebc2 Revert "drm/amdkfd: only allow heavy-weight TLB flush on some ASICs for SVM too"
This reverts commit 36bf93216e.

It causes SVM regressions on Vega10 with XNACK-ON. Just revert it
at the moment.

./kfdtest --gtest_filter=KFDSVMRangeTest.MigratePolicyTest

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Philip Yang<Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-21 15:58:31 -04:00
David Yat Sin
747eea0732 drm/amdkfd: CRIU add support for GWS queues
Add support to checkpoint/restore GWS (Global Wave Sync) queues.

Signed-off-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-21 11:32:38 -04:00
David Yat Sin
ab4d51d47f drm/amdkfd: Fix GWS queue count
dqm->gws_queue_count and pdd->qpd.mapped_gws_queue need to be updated
each time the queue gets evicted.

Fixes: b8020b0304 ("drm/amdkfd: Enable over-subscription with >1 GWS queue")
Signed-off-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-21 11:30:42 -04:00
Lang Yu
36bf93216e drm/amdkfd: only allow heavy-weight TLB flush on some ASICs for SVM too
The idea is from
commit a50fe70780 ("drm/amdkfd: Only apply heavy-weight TLB flush on Aldebaran")
and
commit f61c40c075 ("drm/amdkfd: enable heavy-weight TLB flush on Arcturus").

At the moment, heavy-weight TLB could cause problems on ASICs except
Aldebaran and Arcturus.

A simple hipMallocManaged/hipFree program could trigger this issue.

[   97.787657] amdgpu 0000:01:00.0: amdgpu: wait for kiq fence error: 0.
[  106.868758] amdgpu: qcm fence wait loop timeout expired
[  106.868966] amdgpu: The cp might be in an unrecoverable state due to an unsuccessful queues preemption
[  106.869203] amdgpu: Failed to evict process queues
[  106.869261] amdgpu: Failed to quiesce KFD

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-19 13:58:07 -04:00
Lang Yu
459ccca5f7 drm/amdkfd: move kfd_flush_tlb_after_unmap into kfd_priv.h
To make kfd_flush_tlb_after_unmap visible in kfd_svm.c,
move it into kfd_priv.h. And change it to an inline function.

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-19 13:55:37 -04:00
Felix Kuehling
250e64a3f0 drm/amdkfd: fix race condition in kfd_wait_on_events
Add the waiters to the wait queue during initialization, while holding the
event spinlock. Otherwise the waiter will not get activated if the event
signals before being added to the wait queue.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Philip Yang<Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-14 15:29:13 -04:00
Dan Carpenter
abb5bc5949 drm/amdkfd: potential NULL dereference in kfd_set/reset_event()
If lookup_event_by_id() returns a NULL "ev" pointer then the
spin_lock(&ev->lock) will crash.  This was detected by Smatch:

    drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_events.c:644 kfd_set_event()
    error: we previously assumed 'ev' could be null (see line 639)

Fixes: 5273e82c5f ("drm/amdkfd: Improve concurrency of event handling")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.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>
2022-04-14 15:24:22 -04:00
Mukul Joshi
46d18d510d drm/amdkfd: Cleanup IO links during KFD device removal
Currently, the IO-links to the device being removed from topology,
are not cleared. As a result, there would be dangling links left in
the KFD topology. This patch aims to fix the following:
1. Cleanup all IO links to the device being removed.
2. Ensure that node numbering in sysfs and nodes proximity domain
   values are consistent after the device is removed:
   a. Adding a device and removing a GPU device are made mutually
      exclusive.
   b. The global proximity domain counter is no longer required to be
      an atomic counter. A normal 32-bit counter can be used instead.
3. Update generation_count to let user-mode know that topology has
   changed due to device removal.

CC: Shuotao Xu <shuotaoxu@microsoft.com>
Reviewed-by: Shuotao Xu <shuotaoxu@microsoft.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-13 09:14:22 -04:00
Lang Yu
3925f9b4fe drm/amdkfd: shrink bitmap size in struct svm_validate_context
A MAX_GPU_INSTANCE bits bitmap will suffice.

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-13 09:14:22 -04:00
Felix Kuehling
34d292d579 drm/amdkfd: Asynchronously free events
The synchronize_rcu call in destroy_events can take several ms, which
noticeably slows down applications destroying many events. Use kfree_rcu
to free the event structure asynchronously and eliminate the
synchronize_rcu call in the user thread.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-12 14:20:13 -04:00
Dave Airlie
b85ffe47c4 drm-misc-next for 5.19:
UAPI Changes:
 
 Cross-subsystem Changes:
 
 Core Changes:
   - atomic: Add atomic_print_state to private objects
   - edid: Constify the EDID parsing API, rework of the API
   - dma-buf: Add dma_resv_replace_fences, dma_resv_get_singleton, make
     dma_resv_excl_fence private
   - format: Support monochrome formats
   - fbdev: fixes for cfb_imageblit and sys_imageblit, pagelist
     corruption fix
   - selftests: several small fixes
   - ttm: Rework bulk move handling
 
 Driver Changes:
   - Switch all relevant drivers to drm_mode_copy or drm_mode_duplicate
   - bridge: conversions to devm_drm_of_get_bridge and panel_bridge,
     autosuspend for analogix_dp, audio support for it66121, DSI to DPI
     support for tc358767, PLL fixes and I2C support for icn6211
   - bridge_connector: Enable HPD if supported
   - etnaviv: fencing improvements
   - gma500: GEM and GTT improvements, connector handling fixes
   - komeda: switch to plane reset helper
   - mediatek: MIPI DSI improvements
   - omapdrm: GEM improvements
   - panel: DT bindings fixes for st7735r, few fixes for ssd130x, new
     panels: ltk035c5444t, B133UAN01, NV3052C
   - qxl: Allow to run on arm64
   - sysfb: Kconfig rework, support for VESA graphic mode selection
   - vc4: Add a tracepoint for CL submissions, HDMI YUV output,
     HDMI and clock improvements
   - virtio: Remove restriction of non-zero blob_flags,
   - vmwgfx: support for CursorMob and CursorBypass 4, various
     improvements and small fixes
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Merge tag 'drm-misc-next-2022-04-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.19:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:
  - atomic: Add atomic_print_state to private objects
  - edid: Constify the EDID parsing API, rework of the API
  - dma-buf: Add dma_resv_replace_fences, dma_resv_get_singleton, make
    dma_resv_excl_fence private
  - format: Support monochrome formats
  - fbdev: fixes for cfb_imageblit and sys_imageblit, pagelist
    corruption fix
  - selftests: several small fixes
  - ttm: Rework bulk move handling

Driver Changes:
  - Switch all relevant drivers to drm_mode_copy or drm_mode_duplicate
  - bridge: conversions to devm_drm_of_get_bridge and panel_bridge,
    autosuspend for analogix_dp, audio support for it66121, DSI to DPI
    support for tc358767, PLL fixes and I2C support for icn6211
  - bridge_connector: Enable HPD if supported
  - etnaviv: fencing improvements
  - gma500: GEM and GTT improvements, connector handling fixes
  - komeda: switch to plane reset helper
  - mediatek: MIPI DSI improvements
  - omapdrm: GEM improvements
  - panel: DT bindings fixes for st7735r, few fixes for ssd130x, new
    panels: ltk035c5444t, B133UAN01, NV3052C
  - qxl: Allow to run on arm64
  - sysfb: Kconfig rework, support for VESA graphic mode selection
  - vc4: Add a tracepoint for CL submissions, HDMI YUV output,
    HDMI and clock improvements
  - virtio: Remove restriction of non-zero blob_flags,
  - vmwgfx: support for CursorMob and CursorBypass 4, various
    improvements and small fixes

[airlied: fixup conflict with newvision panel callbacks]
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220407085940.pnflvjojs4qw4b77@houat
2022-04-12 17:44:27 +10:00
Philip Yang
edd11922e3 drm/amdkfd: Handle drain retry fault race with XNACK mode change
Application could change XNACK enabled to disabled while KFD is draining
stale retry fault, therefore the check for whether to drain retry faults
must be before the check for whether xnack_enabled, to avoid report
incorrect vm fault after application changes XNACK mode.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-11 13:50:35 -04:00
Felix Kuehling
5273e82c5f drm/amdkfd: Improve concurrency of event handling
Use rcu_read_lock to read p->event_idr concurrently with other readers
and writers. Use p->event_mutex only for creating and destroying events
and in kfd_wait_on_events.

Protect the contents of the kfd_event structure with a per-event
spinlock that can be taken inside the rcu_read_lock critical section.

This eliminates contention of p->event_mutex in set_event, which tends
to be on the critical path for dispatch latency even when busy waiting
is used. It also eliminates lock contention in event interrupt handlers.
Since the p->event_mutex is now used much less, the impact of requiring
it in kfd_wait_on_events should also be much smaller.

This should improve event handling latency for processes using multiple
GPUs concurrently.

v2: Reschedule the worker periodically to avoid soft lockup warnings

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Sean Keely <Sean.Keely@amd.com> # v1
Tested-by: Sanjay Tripathi <sanjay.tripathi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-07 16:34:24 -04:00
Dave Airlie
dc7d19d27d Merge tag 'amd-drm-fixes-5.18-2022-04-06' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.18-2022-04-06:

amdgpu:
- VCN 3.0 fixes
- DCN 3.1.5 fix
- Misc display fixes
- GC 10.3 golden register fix
- Suspend fix
- SMU 10 fix

amdkfd:
- Event fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220406170441.5779-1-alexander.deucher@amd.com
2022-04-07 10:23:23 +10:00
Dave Airlie
72cfb835e5 Merge tag 'amd-drm-next-5.18-2022-03-25' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-next-5.18-2022-03-25:

amdgpu:
- GFX 10.3.7 fixes
- noretry updates
- VCN fixes
- TMDS fix
- zstate fix for freesync video
- DCN 3.1.5 fix
- Display stack size fix
- Audio fix
- DCN 3.1 pstate fix
- TMZ VCN fix
- APU passthrough fix
- Misc other fixes

amdkfd:
- Error handling fix
- xgmi p2p fix
- HWS VMIDs fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220325183602.5718-1-alexander.deucher@amd.com
2022-04-07 10:21:54 +10:00
Lee Jones
e79a2398e1 drm/amdkfd: Create file descriptor after client is added to smi_clients list
This ensures userspace cannot prematurely clean-up the client before
it is fully initialised which has been proven to cause issues in the
past.

Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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>
Cc: stable@vger.kernel.org
2022-04-06 12:02:57 -04:00
Christian König
c8d4c18bfb dma-buf/drivers: make reserving a shared slot mandatory v4
Audit all the users of dma_resv_add_excl_fence() and make sure they
reserve a shared slot also when only trying to add an exclusive fence.

This is the next step towards handling the exclusive fence like a
shared one.

v2: fix missed case in amdgpu
v3: and two more radeon, rename function
v4: add one more case to TTM, fix i915 after rebase

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220406075132.3263-2-christian.koenig@amd.com
2022-04-06 17:38:25 +02:00
Philip Yang
96621ca578 drm/amdkfd: Add missing NULL check in svm_range_map_to_gpu
bo_adev is NULL for system memory mapping to GPU.

Fixes: 30671b44aa ("drm/amdgpu: fix TLB flushing during eviction")
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-06 10:14:46 -04:00
Christian König
30671b44aa drm/amdgpu: fix TLB flushing during eviction
Testing the valid bit is not enough to figure out if we
need to invalidate the TLB or not.

During eviction it is quite likely that we move a BO from VRAM to GTT and
update the page tables immediately to the new GTT address.

Rework the whole function to get all the necessary parameters directly as
value.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-04-05 10:26:20 -04:00
Lee Jones
e45422695c drm/amdkfd: Create file descriptor after client is added to smi_clients list
This ensures userspace cannot prematurely clean-up the client before
it is fully initialised which has been proven to cause issues in the
past.

Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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>
2022-03-31 23:05:55 -04:00
Philip Yang
8fde0248a3 drm/amdkfd: Use atomic64_t type for pdd->tlb_seq
To support multi-thread update page table.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-31 23:05:54 -04:00
Christian König
8f8cc3fb43 drm/amdgpu: remove table_freed param from the VM code
Better to leave the decision when to flush the VM changes in the TLB to
the VM code.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Philip Yang<Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25 12:40:52 -04:00
Christian König
4d30a83c74 drm/amdkfd: use tlb_seq from the VM subsystem for SVM as well v2
Instead of hand rolling the table_freed parameter.

v2: add some changes suggested by Philip

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Philip Yang<Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25 12:40:52 -04:00
Christian König
bffa91dadf drm/amdkfd: start using tlb_seq from the VM subsystem
Instead of trying to figure out if a TLB flush is necessary or not use
the information provided by the VM subsystem now.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Philip Yang<Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25 12:40:51 -04:00
Tao Zhou
ed94aca6db drm/amdkfd: print unmap queue status for RAS poison consumption (v3)
Print the status out when it passes, and also tell user gpu reset
is triggered when we fall back to legacy way.

v2: make the message more explicit.
v3: change succeeds to succeeded.
    replace pr_warn with dev_warn.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25 12:40:26 -04:00
Tao Zhou
1990e29b19 drm/amdkfd: add RAS poison consumption handling for UTCL2 (v2)
Do RAS page retirement and use gpu reset as fallback in UTCL2 fault
handler.

v2: replace vm fault event with posion consumed event in UTCL2
poison consumption.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25 12:40:26 -04:00
Tao Zhou
9d8a8d78d9 drm/amdkfd: replace source_id with client_id for RAS poison consumption
Client ID is more accruate here and we can deal with more different
cases with client ID.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25 12:40:25 -04:00
Tao Zhou
eed4197530 drm/amdkfd: refine event_interrupt_poison_consumption
Combine reading and setting poison flag as one atomic operation
and add print message for the function.

Signed-off-by: Tao Zhou <tao.zhou1@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>
2022-03-25 12:40:25 -04:00
QintaoShen
ebbb7bb9e8 drm/amdkfd: Check for potential null return of kmalloc_array()
As the kmalloc_array() may return null, the 'event_waiters[i].wait' would lead to null-pointer dereference.
Therefore, it is better to check the return value of kmalloc_array() to avoid this confusion.

Signed-off-by: QintaoShen <unSimple1993@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25 12:40:25 -04:00
Divya Shikre
c5650327ab drm/amdkfd: Check use_xgmi_p2p before reporting hive_id
Recently introduced commit 158a05a0b8 ("drm/amdgpu: Add
use_xgmi_p2p module parameter") did not update XGMI iolinks
when use_xgmi_p2p is disabled. Add fix to not create XGMI
iolinks in KFD topology when this parameter is disabled.

Fixes: 158a05a0b8 ("drm/amdgpu: Add use_xgmi_p2p module parameter")
Signed-off-by: Divya Shikre <DivyaUday.Shikre@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25 12:40:25 -04:00
Tushar Patel
b7dfbd2e60 drm/amdkfd: Fix Incorrect VMIDs passed to HWS
Compute-only GPUs have more than 8 VMIDs allocated to KFD. Fix
this by passing correct number of VMIDs to HWS

v2: squash in warning fix (Alex)

Signed-off-by: Tushar Patel <tushar.patel@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25 12:40:25 -04:00
Linus Torvalds
b14ffae378 drm for 5.18-rc1
dma-buf:
 - rename dma-buf-map to iosys-map
 
 core:
 - move buddy allocator to core
 - add pci/platform init macros
 - improve EDID parser deep color handling
 - EDID timing type 7 support
 - add GPD Win Max quirk
 - add yes/no helpers to string_helpers
 - flatten syncobj chains
 - add nomodeset support to lots of drivers
 - improve fb-helper clipping support
 - add default property value interface
 
 fbdev:
 - improve fbdev ops speed
 
 ttm:
 - add a backpointer from ttm bo->ttm resource
 
 dp:
 - move displayport headers
 - add a dp helper module
 
 bridge:
 - anx7625 atomic support, HDCP support
 
 panel:
 - split out panel-lvds and lvds bindings
 - find panels in OF subnodes
 
 privacy:
 - add chromeos privacy screen support
 
 fb:
 - hot unplug fw fb on forced removal
 
 simpledrm:
 - request region instead of marking ioresource busy
 - add panel oreintation property
 
 udmabuf:
 - fix oops with 0 pages
 
 amdgpu:
 - power management code cleanup
 - Enable freesync video mode by default
 - RAS code cleanup
 - Improve VRAM access for debug using SDMA
 - SR-IOV rework special register access and fixes
 - profiling power state request ioctl
 - expose IP discovery via sysfs
 - Cyan skillfish updates
 - GC 10.3.7, SDMA 5.2.7, DCN 3.1.6 updates
 - expose benchmark tests via debugfs
 - add module param to disable XGMI for testing
 - GPU reset debugfs register dumping support
 
 amdkfd:
 - CRIU support
 - SDMA queue fixes
 
 radeon:
 - UVD suspend fix
 - iMac backlight fix
 
 i915:
 - minimal parallel submission for execlists
 - DG2-G12 subplatform added
 - DG2 programming workarounds
 - DG2 accelerated migration support
 - flat CCS and CCS engine support for XeHP
 - initial small BAR support
 - drop fake LMEM support
 - ADL-N PCH support
 - bigjoiner updates
 - introduce VMA resources and async unbinding
 - register definitions cleanups
 - multi-FBC refactoring
 - DG1 OPROM over SPI support
 - ADL-N platform enabling
 - opregion mailbox #5 support
 - DP MST ESI improvements
 - drm device based logging
 - async flip optimisation for DG2
 - CPU arch abstraction fixes
 - improve GuC ADS init to work on aarch64
 - tweak TTM LRU priority hint
 - GuC 69.0.3 support
 - remove short term execbuf pins
 
 nouveau:
 - higher DP/eDP bitrates
 - backlight fixes
 
 msm:
 - dpu + dp support for sc8180x
 - dp support for sm8350
 - dpu + dsi support for qcm2290
 - 10nm dsi phy tuning support
 - bridge support for dp encoder
 - gpu support for additional 7c3 SKUs
 
 ingenic:
 - HDMI support for JZ4780
 - aux channel EDID support
 
 ast:
 - AST2600 support
 - add wide screen support
 - create DP/DVI connectors
 
 omapdrm:
 - fix implicit dma_buf fencing
 
 vc4:
 - add CSC + full range support
 - better display firmware handoff
 
 panfrost:
 - add initial dual-core GPU support
 
 stm:
 - new revision support
 - fb handover support
 
 mediatek:
 - transfer display binding document to yaml format.
 - add mt8195 display device binding.
 - allow commands to be sent during video mode.
 - add wait_for_event for crtc disable by cmdq.
 
 tegra:
 - YUV format support
 
 rcar-du:
 - LVDS support for M3-W+ (R8A77961)
 
 exynos:
 - BGR pixel format for FIMD device
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Merge tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Lots of work all over, Intel improving DG2 support, amdkfd CRIU
  support, msm new hw support, and faster fbdev support.

  dma-buf:
   - rename dma-buf-map to iosys-map

  core:
   - move buddy allocator to core
   - add pci/platform init macros
   - improve EDID parser deep color handling
   - EDID timing type 7 support
   - add GPD Win Max quirk
   - add yes/no helpers to string_helpers
   - flatten syncobj chains
   - add nomodeset support to lots of drivers
   - improve fb-helper clipping support
   - add default property value interface

  fbdev:
   - improve fbdev ops speed

  ttm:
   - add a backpointer from ttm bo->ttm resource

  dp:
   - move displayport headers
   - add a dp helper module

  bridge:
   - anx7625 atomic support, HDCP support

  panel:
   - split out panel-lvds and lvds bindings
   - find panels in OF subnodes

  privacy:
   - add chromeos privacy screen support

  fb:
   - hot unplug fw fb on forced removal

  simpledrm:
   - request region instead of marking ioresource busy
   - add panel oreintation property

  udmabuf:
   - fix oops with 0 pages

  amdgpu:
   - power management code cleanup
   - Enable freesync video mode by default
   - RAS code cleanup
   - Improve VRAM access for debug using SDMA
   - SR-IOV rework special register access and fixes
   - profiling power state request ioctl
   - expose IP discovery via sysfs
   - Cyan skillfish updates
   - GC 10.3.7, SDMA 5.2.7, DCN 3.1.6 updates
   - expose benchmark tests via debugfs
   - add module param to disable XGMI for testing
   - GPU reset debugfs register dumping support

  amdkfd:
   - CRIU support
   - SDMA queue fixes

  radeon:
   - UVD suspend fix
   - iMac backlight fix

  i915:
   - minimal parallel submission for execlists
   - DG2-G12 subplatform added
   - DG2 programming workarounds
   - DG2 accelerated migration support
   - flat CCS and CCS engine support for XeHP
   - initial small BAR support
   - drop fake LMEM support
   - ADL-N PCH support
   - bigjoiner updates
   - introduce VMA resources and async unbinding
   - register definitions cleanups
   - multi-FBC refactoring
   - DG1 OPROM over SPI support
   - ADL-N platform enabling
   - opregion mailbox #5 support
   - DP MST ESI improvements
   - drm device based logging
   - async flip optimisation for DG2
   - CPU arch abstraction fixes
   - improve GuC ADS init to work on aarch64
   - tweak TTM LRU priority hint
   - GuC 69.0.3 support
   - remove short term execbuf pins

  nouveau:
   - higher DP/eDP bitrates
   - backlight fixes

  msm:
   - dpu + dp support for sc8180x
   - dp support for sm8350
   - dpu + dsi support for qcm2290
   - 10nm dsi phy tuning support
   - bridge support for dp encoder
   - gpu support for additional 7c3 SKUs

  ingenic:
   - HDMI support for JZ4780
   - aux channel EDID support

  ast:
   - AST2600 support
   - add wide screen support
   - create DP/DVI connectors

  omapdrm:
   - fix implicit dma_buf fencing

  vc4:
   - add CSC + full range support
   - better display firmware handoff

  panfrost:
   - add initial dual-core GPU support

  stm:
   - new revision support
   - fb handover support

  mediatek:
   - transfer display binding document to yaml format.
   - add mt8195 display device binding.
   - allow commands to be sent during video mode.
   - add wait_for_event for crtc disable by cmdq.

  tegra:
   - YUV format support

  rcar-du:
   - LVDS support for M3-W+ (R8A77961)

  exynos:
   - BGR pixel format for FIMD device"

* tag 'drm-next-2022-03-24' of git://anongit.freedesktop.org/drm/drm: (1529 commits)
  drm/i915/display: Do not re-enable PSR after it was marked as not reliable
  drm/i915/display: Fix HPD short pulse handling for eDP
  drm/amdgpu: Use drm_mode_copy()
  drm/radeon: Use drm_mode_copy()
  drm/amdgpu: Use ternary operator in `vcn_v1_0_start()`
  drm/amdgpu: Remove pointless on stack mode copies
  drm/amd/pm: fix indenting in __smu_cmn_reg_print_error()
  drm/amdgpu/dc: fix typos in comments
  drm/amdgpu: fix typos in comments
  drm/amd/pm: fix typos in comments
  drm/amdgpu: Add stolen reserved memory for MI25 SRIOV.
  drm/amdgpu: Merge get_reserved_allocation to get_vbios_allocations.
  drm/amdkfd: evict svm bo worker handle error
  drm/amdgpu/vcn: fix vcn ring test failure in igt reload test
  drm/amdgpu: only allow secure submission on rings which support that
  drm/amdgpu: fixed the warnings reported by kernel test robot
  drm/amd/display: 3.2.177
  drm/amd/display: [FW Promotion] Release 0.0.108.0
  drm/amd/display: Add save/restore PANEL_PWRSEQ_REF_DIV2
  drm/amd/display: Wait for hubp read line for Pollock
  ...
2022-03-24 16:19:43 -07:00
Philip Yang
9527b9caf8 drm/amdkfd: evict svm bo worker handle error
Migrate vram to ram may fail to find the vma if process is exiting
and vma is removed, evict svm bo worker sets prange->svm_bo to NULL
and warn svm_bo ref count != 1 only if migrating vram to ram
successfully.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-15 15:01:12 -04:00
David Yat Sin
65722ff618 drm/amdkfd: CRIU export dmabuf handles for GTT BOs
Export dmabuf handles for GTT BOs so that their contents can be accessed
using SDMA during checkpoint/restore.

v2: Squash in fix from David to set dmabuf handle to invalid for BOs
that cannot be accessed using SDMA during checkpoint/restore.

Signed-off-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by : Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-15 14:25:17 -04:00
David Yat Sin
b38c074b2b drm/amdkfd: CRIU Refactor restore BO function
Refactor CRIU restore BO to reduce identation.

Signed-off-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-15 14:25:16 -04:00
David Yat Sin
67a359d85e drm/amdkfd: CRIU remove sync and TLB flush on restore
When the process is getting restored, the queues are not mapped yet, so
there is no VMID assigned for this process and no TLBs to flush.

Signed-off-by: David Yat Sin <david.yatsin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-15 14:25:16 -04:00
Yifan Zhang
d55957fb29 drm/amdkfd: bail out early if no get_atc_vmid_pasid_mapping_info
it makes no sense to continue with an undefined vmid.

Fixes: c8b0507f40 ("drm/amdkfd: judge get_atc_vmid_pasid_mapping_info before call")
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-09 17:27:50 -05:00