drm/amdgpu/vcn:Add DPG mode Register XX check

Add Dynamic Power Gate mode Register XX check
Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c

@@ -37,6 +37,11 @@
 
 #include "ivsrcid/vcn/irqsrcs_vcn_1_0.h"
 
+#define mmUVD_RBC_XX_IB_REG_CHECK				0x05ab
+#define mmUVD_RBC_XX_IB_REG_CHECK_BASE_IDX	1
+#define mmUVD_REG_XX_MASK							0x05ac
+#define mmUVD_REG_XX_MASK_BASE_IDX				1
+
 static int vcn_v1_0_stop(struct amdgpu_device *adev);
 static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev);
 static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev);
@@ -1031,6 +1036,9 @@ static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
 
 	vcn_v1_0_mc_resume_dpg_mode(adev);
 
+	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_REG_XX_MASK, 0x10, 0xFFFFFFFF, 0);
+	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_RBC_XX_IB_REG_CHECK, 0x3, 0xFFFFFFFF, 0);
+
 	/* take all subblocks out of reset, except VCPU */
 	WREG32_SOC15_DPG_MODE(UVD, 0, mmUVD_SOFT_RESET,
 			UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK, 0xFFFFFFFF, 0);