drm/amdgpu/vcn:Always check all vcn ring status during dpg mode stop

Always check all vcn ring status during dpg mode stop, it will help
identify which vcn ring may cause the issue.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1161,21 +1161,29 @@ static int vcn_v1_0_stop_spg_mode(struct amdgpu_device *adev)
 static int vcn_v1_0_stop_dpg_mode(struct amdgpu_device *adev)
 {
 	int ret_code = 0;
+	uint32_t tmp;
 
 	/* Wait for power status to be UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF */
 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
 			UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
 			UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
 
-	if (!ret_code) {
-		int tmp = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF;
 	/* wait for read ptr to be equal to write ptr */
+	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR);
+	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR, tmp, 0xFFFFFFFF, ret_code);
+
+	tmp = RREG32_SOC15(UVD, 0, mmUVD_RB_WPTR2);
+	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RB_RPTR2, tmp, 0xFFFFFFFF, ret_code);
+
+	tmp = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
+	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_JRBC_RB_RPTR, tmp, 0xFFFFFFFF, ret_code);
+
+	tmp = RREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR) & 0x7FFFFFFF;
 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_RBC_RB_RPTR, tmp, 0xFFFFFFFF, ret_code);
 
 	SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
 		UVD_POWER_STATUS__UVD_POWER_STATUS_TILES_OFF,
 		UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
-	}
 
 	/* disable dynamic power gating mode */
 	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_POWER_STATUS), 0,