Commit 10112bf8 authored by Xiaogang Chen's avatar Xiaogang Chen Committed by Alex Deucher
Browse files

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



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

Signed-off-by: default avatarXiaogang Chen <xiaogang.chen@amd.com>
Reviewed-by: default avatarFelix Kuehling <felix.kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 7d9af459

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c

+7 −4
Original line number Diff line number Diff line
@@ -2524,8 +2524,11 @@ 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");



		if (r != -ESRCH)

			queue_delayed_work(system_freezable_wq,

				&process_info->restore_userptr_work,

				msecs_to_jiffies(AMDGPU_USERPTR_RESTORE_DELAY_MS));