drm/amdkfd: switch over to using drm_exec v3

[platform/kernel/linux-rpi.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_vm.c

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 143d11a..c5c5f2e 100644 (file)
--- 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