Record the gpu reset count in vmid to identify if gpu reset happened.
Change-Id: Iebfc093a3fdc79adc9b8f54453f1d2135a31e74b
Signed-off-by: Chunming Zhou <David1.Zhou at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 4 +++-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 475a151..0474450 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -895,6 +895,8 @@ 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;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 35db766..1e6a897 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -250,6 +250,8 @@ 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;
@@ -303,7 +305,7 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
id->flushed_updates = fence_get(updates);
id->pd_gpu_addr = pd_addr;
-
+ id->current_gpu_reset_count = atomic_read(&adev->gpu_reset_counter);
list_move_tail(&id->list, &adev->vm_manager.ids_lru);
atomic64_set(&id->owner, vm->client_id);
vm->ids[ring->idx] = id;
--
1.9.1
