From 4488f71f637376178037380c1b8ce45aa1bf5ad4 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Mon, 16 Jan 2023 08:33:16 +0200 Subject: [PATCH] drm/msm/dpu: simplify blend configuration Rewrite dpu_hw_ctl_setup_blendstage() to use static data configuration rather than using a switch-case. This simplifies adding support for new pipes. Signed-off-by: Dmitry Baryshkov Reviewed-by: Neil Armstrong Tested-by: Neil Armstrong # on SM8550 Patchwork: https://patchwork.freedesktop.org/patch/518485/ Link: https://lore.kernel.org/r/20230116063316.728496-3-dmitry.baryshkov@linaro.org Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 156 +++++++++-------------------- 1 file changed, 45 insertions(+), 111 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c index 3006296..b88a2f3 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c @@ -379,14 +379,37 @@ static void dpu_hw_ctl_clear_all_blendstages(struct dpu_hw_ctl *ctx) DPU_REG_WRITE(c, CTL_FETCH_PIPE_ACTIVE, 0); } +struct ctl_blend_config { + int idx, shift, ext_shift; +}; + +static const struct ctl_blend_config ctl_blend_config[][2] = { + [SSPP_NONE] = { { -1 }, { -1 } }, + [SSPP_MAX] = { { -1 }, { -1 } }, + [SSPP_VIG0] = { { 0, 0, 0 }, { 3, 0 } }, + [SSPP_VIG1] = { { 0, 3, 2 }, { 3, 4 } }, + [SSPP_VIG2] = { { 0, 6, 4 }, { 3, 8 } }, + [SSPP_VIG3] = { { 0, 26, 6 }, { 3, 12 } }, + [SSPP_RGB0] = { { 0, 9, 8 }, { -1 } }, + [SSPP_RGB1] = { { 0, 12, 10 }, { -1 } }, + [SSPP_RGB2] = { { 0, 15, 12 }, { -1 } }, + [SSPP_RGB3] = { { 0, 29, 14 }, { -1 } }, + [SSPP_DMA0] = { { 0, 18, 16 }, { 2, 8 } }, + [SSPP_DMA1] = { { 0, 21, 18 }, { 2, 12 } }, + [SSPP_DMA2] = { { 2, 0 }, { 2, 16 } }, + [SSPP_DMA3] = { { 2, 4 }, { 2, 20 } }, + [SSPP_DMA4] = { { 4, 0 }, { 4, 8 } }, + [SSPP_DMA5] = { { 4, 4 }, { 4, 12 } }, + [SSPP_CURSOR0] = { { 1, 20 }, { -1 } }, + [SSPP_CURSOR1] = { { 1, 26 }, { -1 } }, +}; + static void dpu_hw_ctl_setup_blendstage(struct dpu_hw_ctl *ctx, enum dpu_lm lm, struct dpu_hw_stage_cfg *stage_cfg) { struct dpu_hw_blk_reg_map *c = &ctx->hw; u32 mix, ext, mix_ext; - u32 mixercfg = 0, mixercfg_ext = 0; - u32 mixercfg_ext2 = 0, mixercfg_ext3 = 0; - u32 mixercfg_ext4 = 0; + u32 mixercfg[5] = { 0 }; int i, j; int stages; int pipes_per_stage; @@ -401,7 +424,7 @@ static void dpu_hw_ctl_setup_blendstage(struct dpu_hw_ctl *ctx, else pipes_per_stage = 1; - mixercfg = CTL_MIXER_BORDER_OUT; /* always set BORDER_OUT */ + mixercfg[0] = CTL_MIXER_BORDER_OUT; /* always set BORDER_OUT */ if (!stage_cfg) goto exit; @@ -415,119 +438,30 @@ static void dpu_hw_ctl_setup_blendstage(struct dpu_hw_ctl *ctx, for (j = 0 ; j < pipes_per_stage; j++) { enum dpu_sspp_multirect_index rect_index = stage_cfg->multirect_index[i][j]; - - switch (stage_cfg->stage[i][j]) { - case SSPP_VIG0: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext3 |= mix_ext << 0; - } else { - mixercfg |= mix << 0; - mixercfg_ext |= ext << 0; - } - break; - case SSPP_VIG1: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext3 |= mix_ext << 4; - } else { - mixercfg |= mix << 3; - mixercfg_ext |= ext << 2; - } - break; - case SSPP_VIG2: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext3 |= mix_ext << 8; - } else { - mixercfg |= mix << 6; - mixercfg_ext |= ext << 4; - } - break; - case SSPP_VIG3: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext3 |= mix_ext << 12; - } else { - mixercfg |= mix << 26; - mixercfg_ext |= ext << 6; - } - break; - case SSPP_RGB0: - mixercfg |= mix << 9; - mixercfg_ext |= ext << 8; - break; - case SSPP_RGB1: - mixercfg |= mix << 12; - mixercfg_ext |= ext << 10; - break; - case SSPP_RGB2: - mixercfg |= mix << 15; - mixercfg_ext |= ext << 12; - break; - case SSPP_RGB3: - mixercfg |= mix << 29; - mixercfg_ext |= ext << 14; - break; - case SSPP_DMA0: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext2 |= mix_ext << 8; - } else { - mixercfg |= mix << 18; - mixercfg_ext |= ext << 16; - } - break; - case SSPP_DMA1: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext2 |= mix_ext << 12; - } else { - mixercfg |= mix << 21; - mixercfg_ext |= ext << 18; - } - break; - case SSPP_DMA2: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext2 |= mix_ext << 16; - } else { - mixercfg_ext2 |= mix_ext << 0; - } - break; - case SSPP_DMA3: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext2 |= mix_ext << 20; - } else { - mixercfg_ext2 |= mix_ext << 4; - } - break; - case SSPP_DMA4: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext4 |= mix_ext << 8; - } else { - mixercfg_ext4 |= mix_ext << 0; - } - break; - case SSPP_DMA5: - if (rect_index == DPU_SSPP_RECT_1) { - mixercfg_ext4 |= mix_ext << 12; - } else { - mixercfg_ext4 |= mix_ext << 4; - } - break; - case SSPP_CURSOR0: - mixercfg_ext |= mix_ext << 20; - break; - case SSPP_CURSOR1: - mixercfg_ext |= mix_ext << 26; - break; - default: - break; + enum dpu_sspp pipe = stage_cfg->stage[i][j]; + const struct ctl_blend_config *cfg = + &ctl_blend_config[pipe][rect_index == DPU_SSPP_RECT_1]; + + /* + * CTL_LAYER has 3-bit field (and extra bits in EXT register), + * all EXT registers has 4-bit fields. + */ + if (cfg->idx == 0) { + mixercfg[0] |= mix << cfg->shift; + mixercfg[1] |= ext << cfg->ext_shift; + } else { + mixercfg[cfg->idx] |= mix_ext << cfg->shift; } } } exit: - DPU_REG_WRITE(c, CTL_LAYER(lm), mixercfg); - DPU_REG_WRITE(c, CTL_LAYER_EXT(lm), mixercfg_ext); - DPU_REG_WRITE(c, CTL_LAYER_EXT2(lm), mixercfg_ext2); - DPU_REG_WRITE(c, CTL_LAYER_EXT3(lm), mixercfg_ext3); + DPU_REG_WRITE(c, CTL_LAYER(lm), mixercfg[0]); + DPU_REG_WRITE(c, CTL_LAYER_EXT(lm), mixercfg[1]); + DPU_REG_WRITE(c, CTL_LAYER_EXT2(lm), mixercfg[2]); + DPU_REG_WRITE(c, CTL_LAYER_EXT3(lm), mixercfg[3]); if ((test_bit(DPU_CTL_HAS_LAYER_EXT4, &ctx->caps->features))) - DPU_REG_WRITE(c, CTL_LAYER_EXT4(lm), mixercfg_ext4); + DPU_REG_WRITE(c, CTL_LAYER_EXT4(lm), mixercfg[4]); } -- 2.7.4