drm/amdgpu: add uvd enc command in header

Add UVD encode command interface definition for uvd6.3 HEVC encoding

Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-and-Tested-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/vid.h

@@ -465,6 +465,16 @@
 #define VCE_CMD_UPDATE_PTB      0x00000107
 #define VCE_CMD_FLUSH_TLB       0x00000108
 
+/* HEVC ENC */
+#define HEVC_ENC_CMD_NO_OP         0x00000000
+#define HEVC_ENC_CMD_END           0x00000001
+#define HEVC_ENC_CMD_FENCE         0x00000003
+#define HEVC_ENC_CMD_TRAP          0x00000004
+#define HEVC_ENC_CMD_IB_VM         0x00000102
+#define HEVC_ENC_CMD_WAIT_GE       0x00000106
+#define HEVC_ENC_CMD_UPDATE_PTB    0x00000107
+#define HEVC_ENC_CMD_FLUSH_TLB     0x00000108
+
 /* mmPA_SC_RASTER_CONFIG mask */
 #define RB_MAP_PKR0(x)				((x) << 0)
 #define RB_MAP_PKR0_MASK			(0x3 << 0)