drm/amdgpu: add initial VCN2.0 support (v2)

VCN (Video Core Next) is the video encode/decode block.

Porting over the same functions from VCN1.0

v2: squash in updates (Alex)
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/Makefile

@@ -136,7 +136,8 @@ amdgpu-y += \
 # add VCN block
 amdgpu-y += \
 	amdgpu_vcn.o \
-	vcn_v1_0.o
+	vcn_v1_0.o \
+	vcn_v2_0.o
 
 # add ATHUB block
 amdgpu-y += \

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

@@ -75,6 +75,7 @@ enum engine_status_constants {
 	UVD_STATUS__BUSY = 0x5,
 	UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF = 0x1,
 	UVD_STATUS__RBC_BUSY = 0x1,
+	UVD_PGFSM_STATUS_UVDJ_PWR_ON = 0,
 };
 
 enum internal_dpg_state {

drivers/gpu/drm/amd/amdgpu/vcn_v2_0.h

+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __VCN_V2_0_H__
+#define __VCN_V2_0_H__
+
+extern const struct amdgpu_ip_block_version vcn_v2_0_ip_block;
+
+#endif /* __VCN_V2_0_H__ */