diff options
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 34 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.h | 32 |
3 files changed, 53 insertions, 17 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index c0b5373e90d7..34827fe807d4 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -1793,5 +1793,9 @@ struct msm_gpu *a5xx_gpu_init(struct drm_device *dev) else adreno_gpu->ubwc_config.highest_bank_bit = 14; + /* a5xx only supports UBWC 1.0, these are not configurable */ + adreno_gpu->ubwc_config.macrotile_mode = 0; + adreno_gpu->ubwc_config.ubwc_swizzle = 0x7; + return gpu; } 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) diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h index 1ab523a163a0..db42f8af978d 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -191,12 +191,42 @@ struct adreno_gpu { const struct firmware *fw[ADRENO_FW_MAX]; struct { + /** + * @rgb565_predicator: Unknown, introduced with A650 family, + * related to UBWC mode/ver 4 + */ u32 rgb565_predicator; + /** @uavflagprd_inv: Unknown, introduced with A650 family */ u32 uavflagprd_inv; + /** @min_acc_len: Whether the minimum access length is 64 bits */ u32 min_acc_len; - u32 ubwc_mode; + /** + * @ubwc_swizzle: Whether to enable level 1, 2 & 3 bank swizzling. + * + * UBWC 1.0 always enables all three levels. + * UBWC 2.0 removes level 1 bank swizzling, leaving levels 2 & 3. + * UBWC 4.0 adds the optional ability to disable levels 2 & 3. + * + * This is a bitmask where BIT(0) enables level 1, BIT(1) + * controls level 2, and BIT(2) enables level 3. + */ + u32 ubwc_swizzle; + /** + * @highest_bank_bit: Highest Bank Bit + * + * The Highest Bank Bit value represents the bit of the highest + * DDR bank. This should ideally use DRAM type detection. + */ u32 highest_bank_bit; u32 amsbc; + /** + * @macrotile_mode: Macrotile Mode + * + * Whether to use 4-channel macrotiling mode or the newer + * 8-channel macrotiling mode introduced in UBWC 3.1. 0 is + * 4-channel and 1 is 8-channel. + */ + u32 macrotile_mode; } ubwc_config; /* |