[PATCH 1/4] drm/amdgpu: add support for UVD_NO_OP register

[Alex Deucher]

Writes to this register are the preferred way to do NOPs.

Bump the driver version as well.

Reviewed-by: Christian König <christian.koenig at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c              | 3 ++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c              | 1 +
 drivers/gpu/drm/amd/include/asic_reg/uvd/uvd_4_2_d.h | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 2b57d68..79c00c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -54,9 +54,10 @@
  *           at the end of IBs.
  * - 3.3.0 - Add VM support for UVD on supported hardware.
  * - 3.4.0 - Add AMDGPU_INFO_NUM_EVICTIONS.
+ * - 3.5.0 - Add support for new UVD_NO_OP register.
  */
 #define KMS_DRIVER_MAJOR	3
-#define KMS_DRIVER_MINOR	4
+#define KMS_DRIVER_MINOR	5
 #define KMS_DRIVER_PATCHLEVEL	0
 
 int amdgpu_vram_limit = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index bf59354..811fe98 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -818,6 +818,7 @@ static int amdgpu_uvd_cs_reg(struct amdgpu_uvd_cs_ctx *ctx,
 				return r;
 			break;
 		case mmUVD_ENGINE_CNTL:
+		case mmUVD_NO_OP:
 			break;
 		default:
 			DRM_ERROR("Invalid reg 0x%X!\n", reg);
diff --git a/drivers/gpu/drm/amd/include/asic_reg/uvd/uvd_4_2_d.h b/drivers/gpu/drm/amd/include/asic_reg/uvd/uvd_4_2_d.h
index f3e53b1..19802e9 100644
--- a/drivers/gpu/drm/amd/include/asic_reg/uvd/uvd_4_2_d.h
+++ b/drivers/gpu/drm/amd/include/asic_reg/uvd/uvd_4_2_d.h
@@ -34,6 +34,7 @@
 #define mmUVD_UDEC_ADDR_CONFIG                                                  0x3bd3
 #define mmUVD_UDEC_DB_ADDR_CONFIG                                               0x3bd4
 #define mmUVD_UDEC_DBW_ADDR_CONFIG                                              0x3bd5
+#define mmUVD_NO_OP                                                             0x3bff
 #define mmUVD_SEMA_CNTL                                                         0x3d00
 #define mmUVD_LMI_EXT40_ADDR                                                    0x3d26
 #define mmUVD_CTX_INDEX                                                         0x3d28
-- 
2.5.5