[Freedreno] [PATCH v2 02/14] drm/msm/a6xx: Extend UBWC config

[Konrad Dybcio]

Port setting min_access_length, ubwc_mode and upper_bit from downstream.
Values were validated using downstream device trees for SM8[123]50 and
left default (as per downstream) elsewhere.

Signed-off-by: Konrad Dybcio <konrad.dyb...@linaro.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 29 +++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c 
b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index c5f5d0bb3fdc..8855d798bbb3 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -786,17 +786,25 @@ static void a6xx_set_cp_protect(struct msm_gpu *gpu)
 static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
 {
        struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
-       u32 lower_bit = 2;
+       u32 lower_bit = 1;
+       u32 upper_bit = 0;
        u32 amsbc = 0;
        u32 rgb565_predicator = 0;
        u32 uavflagprd_inv = 0;
+       u32 min_acc_len = 0;
+       u32 ubwc_mode = 0;
 
        /* a618 is using the hw default values */
        if (adreno_is_a618(adreno_gpu))
                return;
 
-       if (adreno_is_a640_family(adreno_gpu))
+       if (adreno_is_a630(adreno_gpu))
+               lower_bit = 2;
+
+       if (adreno_is_a640_family(adreno_gpu)) {
                amsbc = 1;
+               lower_bit = 2;
+       }
 
        if (adreno_is_a650(adreno_gpu) || adreno_is_a660(adreno_gpu)) {
                /* TODO: get ddr type from bootloader and use 2 for LPDDR4 */
@@ -807,18 +815,23 @@ static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
        }
 
        if (adreno_is_7c3(adreno_gpu)) {
-               lower_bit = 1;
                amsbc = 1;
                rgb565_predicator = 1;
                uavflagprd_inv = 2;
        }
 
        gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL,
-               rgb565_predicator << 11 | amsbc << 4 | lower_bit << 1);
-       gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, lower_bit << 1);
-       gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL,
-               uavflagprd_inv << 4 | lower_bit << 1);
-       gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, lower_bit << 21);
+                 rgb565_predicator << 11 | upper_bit << 10 | amsbc << 4 |
+                 min_acc_len << 3 | lower_bit << 1 | ubwc_mode);
+
+       gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, upper_bit << 4 |
+                 min_acc_len << 3 | lower_bit << 1 | ubwc_mode);
+
+       gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, upper_bit << 10 |
+                 uavflagprd_inv << 4 | min_acc_len << 3 |
+                 lower_bit << 1 | ubwc_mode);
+
+       gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, min_acc_len << 23 | lower_bit 
<< 21);
 }
 
 static int a6xx_cp_init(struct msm_gpu *gpu)
-- 
2.39.1