drm/msm/a6xx: add missing PC_DBG_ECO_CNTL bit for a640/a650

See downstream's "disable_tseskip" flag.
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20210608172808.11803-5-jonathan@marek.caSigned-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/adreno/a6xx_gpu.c

@@ -844,13 +844,15 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
 	/* Setting the mem pool size */
 	gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 128);
 
-	/* Setting the primFifo thresholds default values */
+	/* Setting the primFifo thresholds default values,
+	 * and vccCacheSkipDis=1 bit (0x200) for A640 and newer
+	*/
 	if (adreno_is_a650(adreno_gpu))
-		gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00300000);
+		gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00300200);
 	else if (adreno_is_a640(adreno_gpu))
-		gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00200000);
+		gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00200200);
 	else
-		gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, (0x300 << 11));
+		gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00180000);
 
 	/* Set the AHB default slave response to "ERROR" */
 	gpu_write(gpu, REG_A6XX_CP_AHB_CNTL, 0x1);