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drm/amdgpu: must update page table after gpu reset

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Record the gpu reset count in vmid to identify if gpu reset happened.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-06-27 17:06:01 +08:00 committed by Alex Deucher
parent 847b6cf9fb
commit 6adb0513a4
2 changed files with 5 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@ -897,6 +897,8 @@ struct amdgpu_vm_id {
/* last flushed PD/PT update */
struct fence *flushed_updates;
uint32_t current_gpu_reset_count;
uint32_t gds_base;
uint32_t gds_size;
uint32_t gws_base;

3
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View File

@ -255,6 +255,8 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
/* Check all the prerequisites to using this VMID */
if (!id)
continue;
if (id->current_gpu_reset_count != atomic_read(&adev->gpu_reset_counter))
continue;
if (atomic64_read(&id->owner) != vm->client_id)
continue;
@ -278,6 +280,7 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
if (r)
goto error;
id->current_gpu_reset_count = atomic_read(&adev->gpu_reset_counter);
list_move_tail(&id->list, &adev->vm_manager.ids_lru);
vm->ids[ring->idx] = id;