drm/msm: Expand UBWC config setting

According to downstream we should be setting RBBM_NC_MODE_CNTL to a
non-default value on a663 and a680, we don't support a663 and on a680
we're leaving it at the wrong (suboptimal) value. Just set it on all
GPUs. Similarly, plumb through level2_swizzling_dis which will be
necessary on a663.

ubwc_mode is expanded and renamed to ubwc_swizzle to match the name on
the display side. Similarly macrotile_mode should match the display
side.

Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/607397/
Signed-off-by: Rob Clark <robdclark@chromium.org>

1 files changed, 18 insertions, 16 deletions

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index bcaec86ac67a..7c2fdd1e7684 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -493,24 +493,17 @@ static void a6xx_set_cp_protect(struct msm_gpu *gpu)
 
 static void a6xx_calc_ubwc_config(struct adreno_gpu *gpu)
 {
-	/* Unknown, introduced with A650 family, related to UBWC mode/ver 4 */
 	gpu->ubwc_config.rgb565_predicator = 0;
-	/* Unknown, introduced with A650 family */
 	gpu->ubwc_config.uavflagprd_inv = 0;
-	/* Whether the minimum access length is 64 bits */
 	gpu->ubwc_config.min_acc_len = 0;
-	/* Entirely magic, per-GPU-gen value */
-	gpu->ubwc_config.ubwc_mode = 0;
-	/*
-	 * The Highest Bank Bit value represents the bit of the highest DDR bank.
-	 * This should ideally use DRAM type detection.
-	 */
+	gpu->ubwc_config.ubwc_swizzle = 0x6;
+	gpu->ubwc_config.macrotile_mode = 0;
 	gpu->ubwc_config.highest_bank_bit = 15;
 
 	if (adreno_is_a610(gpu)) {
 		gpu->ubwc_config.highest_bank_bit = 13;
 		gpu->ubwc_config.min_acc_len = 1;
-		gpu->ubwc_config.ubwc_mode = 1;
+		gpu->ubwc_config.ubwc_swizzle = 0x7;
 	}
 
 	if (adreno_is_a618(gpu))
@@ -536,6 +529,7 @@ static void a6xx_calc_ubwc_config(struct adreno_gpu *gpu)
 		gpu->ubwc_config.amsbc = 1;
 		gpu->ubwc_config.rgb565_predicator = 1;
 		gpu->ubwc_config.uavflagprd_inv = 2;
+		gpu->ubwc_config.macrotile_mode = 1;
 	}
 
 	if (adreno_is_7c3(gpu)) {
@@ -543,12 +537,12 @@ static void a6xx_calc_ubwc_config(struct adreno_gpu *gpu)
 		gpu->ubwc_config.amsbc = 1;
 		gpu->ubwc_config.rgb565_predicator = 1;
 		gpu->ubwc_config.uavflagprd_inv = 2;
+		gpu->ubwc_config.macrotile_mode = 1;
 	}
 
 	if (adreno_is_a702(gpu)) {
 		gpu->ubwc_config.highest_bank_bit = 14;
 		gpu->ubwc_config.min_acc_len = 1;
-		gpu->ubwc_config.ubwc_mode = 0;
 	}
 }
 
@@ -564,21 +558,26 @@ static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
 	u32 hbb = adreno_gpu->ubwc_config.highest_bank_bit - 13;
 	u32 hbb_hi = hbb >> 2;
 	u32 hbb_lo = hbb & 3;
+	u32 ubwc_mode = adreno_gpu->ubwc_config.ubwc_swizzle & 1;
+	u32 level2_swizzling_dis = !(adreno_gpu->ubwc_config.ubwc_swizzle & 2);
 
 	gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL,
+		  level2_swizzling_dis << 12 |
 		  adreno_gpu->ubwc_config.rgb565_predicator << 11 |
 		  hbb_hi << 10 | adreno_gpu->ubwc_config.amsbc << 4 |
 		  adreno_gpu->ubwc_config.min_acc_len << 3 |
-		  hbb_lo << 1 | adreno_gpu->ubwc_config.ubwc_mode);
+		  hbb_lo << 1 | ubwc_mode);
 
-	gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, hbb_hi << 4 |
+	gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL,
+		  level2_swizzling_dis << 6 | hbb_hi << 4 |
 		  adreno_gpu->ubwc_config.min_acc_len << 3 |
-		  hbb_lo << 1 | adreno_gpu->ubwc_config.ubwc_mode);
+		  hbb_lo << 1 | ubwc_mode);
 
-	gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, hbb_hi << 10 |
+	gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL,
+		  level2_swizzling_dis << 12 | hbb_hi << 10 |
 		  adreno_gpu->ubwc_config.uavflagprd_inv << 4 |
 		  adreno_gpu->ubwc_config.min_acc_len << 3 |
-		  hbb_lo << 1 | adreno_gpu->ubwc_config.ubwc_mode);
+		  hbb_lo << 1 | ubwc_mode);
 
 	if (adreno_is_a7xx(adreno_gpu))
 		gpu_write(gpu, REG_A7XX_GRAS_NC_MODE_CNTL,
@@ -586,6 +585,9 @@ static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
 
 	gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL,
 		  adreno_gpu->ubwc_config.min_acc_len << 23 | hbb_lo << 21);
+
+	gpu_write(gpu, REG_A6XX_RBBM_NC_MODE_CNTL,
+		  adreno_gpu->ubwc_config.macrotile_mode);
 }
 
 static int a6xx_cp_init(struct msm_gpu *gpu)