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drm/amdkfd: Not restore userptr buffer if kfd process has been removed

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When kfd process has been terminated not restore userptr buffer after mmu
notifier invalidates a range.

Signed-off-by: Xiaogang Chen <xiaogang.chen@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiaogang Chen
2024-10-17 00:01:24 -05:00
committed by Alex Deucher
parent 7d9af459f4
commit 10112bf828
1 changed files with 7 additions and 4 deletions
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11
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
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@@ -2524,11 +2524,14 @@ int amdgpu_amdkfd_evict_userptr(struct mmu_interval_notifier *mni,
/* First eviction, stop the queues */
r = kgd2kfd_quiesce_mm(mni->mm,
KFD_QUEUE_EVICTION_TRIGGER_USERPTR);
if (r)
if (r && r != -ESRCH)
pr_err("Failed to quiesce KFD\n");
queue_delayed_work(system_freezable_wq,
&process_info->restore_userptr_work,
msecs_to_jiffies(AMDGPU_USERPTR_RESTORE_DELAY_MS));
if (r != -ESRCH)
queue_delayed_work(system_freezable_wq,
&process_info->restore_userptr_work,
msecs_to_jiffies(AMDGPU_USERPTR_RESTORE_DELAY_MS));
}
mutex_unlock(&process_info->notifier_lock);