mmUVD_RBC_RB_WPTR_CNTL
WREG32(mmUVD_RBC_RB_WPTR_CNTL, 0);
WREG32(mmUVD_RBC_RB_WPTR_CNTL, 0);
WREG32(mmUVD_RBC_RB_WPTR_CNTL, 0);
WREG32(mmUVD_RBC_RB_WPTR_CNTL, 0);
WREG32_SOC15(UVD, k, mmUVD_RBC_RB_WPTR_CNTL, 0);
WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR_CNTL, 0);
WREG32_SOC15(VCN, inst_idx, mmUVD_RBC_RB_WPTR_CNTL, 0);
WREG32_SOC15(VCN, inst_idx, mmUVD_RBC_RB_WPTR_CNTL, 0);