diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 143d11afe0e5..c5c5f2eb76c5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -34,6 +34,7 @@ #include <drm/amdgpu_drm.h> #include <drm/drm_drv.h> #include <drm/ttm/ttm_tt.h> +#include <drm/drm_exec.h> #include "amdgpu.h" #include "amdgpu_trace.h" #include "amdgpu_amdkfd.h" @@ -361,6 +362,23 @@ void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm, } /** + * amdgpu_vm_lock_pd - lock PD in drm_exec + * + * @vm: vm providing the BOs + * @exec: drm execution context + * @num_fences: number of extra fences to reserve + * + * Lock the VM root PD in the DRM execution context. + */ +int amdgpu_vm_lock_pd(struct amdgpu_vm *vm, struct drm_exec *exec, + unsigned int num_fences) +{ + /* We need at least two fences for the VM PD/PT updates */ + return drm_exec_prepare_obj(exec, &vm->root.bo->tbo.base, + 2 + num_fences); +} + +/** * amdgpu_vm_move_to_lru_tail - move all BOs to the end of LRU * * @adev: amdgpu device pointer |