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Mon, 18 Sep 2023 16:42:11 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 18 Sep 2023 16:42:11 +0800 From: Hsiao Chien Sung To: AngeloGioacchino Del Regno , Chun-Kuang Hu , Matthias Brugger CC: Daniel Vetter , David Airlie , "Philipp Zabel" , Chen-Yu Tsai , CK Hu , , , , , Hsiao Chien Sung Subject: [PATCH v2 07/11] drm/mediatek: Support alpha blending in VDOSYS0 Date: Mon, 18 Sep 2023 16:42:03 +0800 Message-ID: <20230918084207.23604-8-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230918084207.23604-1-shawn.sung@mediatek.com> References: <20230918084207.23604-1-shawn.sung@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--11.236600-8.000000 X-TMASE-MatchedRID: GlUfE5FNQQz2fv0LTPfvM5JAa1C/+FcuEbxKVXd70tWU8ftiyKjZrRsY DextMHGuGJd2qe6nWQsaTIVsbS1pG+F/B1jEjV+6y7TSWcbz49b/lBG+uXYJkNchlMhSt6FexEs GD8geUL38aLTyW2a3YkhxRggzEU3FMH15eekLeUiHZXNSWjgdU4ED+PNzPecBRQ0dAChl/lz8/L 2o6LnOlxWt9a3ryuo3lHJpPX3ZHleyRDt3x3st943NgkEqAN0RpwnFZnn+VHwHBp+1KU23QYFaK sEtPT2WFm9c8s2OWMvrSFeO0C8F5I9oUcx9VMLgFEUknJ/kEl7dB/CxWTRRu25FeHtsUoHuPmT0 js3FXVC5lpKwiuLw5JGumwfIFp5jAUfAWyyQaUW+68HqACCvKA== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--11.236600-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 1E132E282DFC25ECB4481593C22B7D42C381A2DE4C4CA4532EE3B8CB85B606702000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230918_014251_713234_6C4B065C X-CRM114-Status: GOOD ( 19.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Support premultiply and coverage alpha blending modes. Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 202 +++++++++++++++++++++--- 1 file changed, 178 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index 2bffe4245466..8c58b204992e 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -30,6 +30,7 @@ #define OVL_LAYER_SMI_ID_EN BIT(0) #define OVL_BGCLR_SEL_IN BIT(2) #define OVL_LAYER_AFBC_EN(n) BIT(4+n) +#define OVL_OUTPUT_CLAMP BIT(26) #define DISP_REG_OVL_ROI_BGCLR 0x0028 #define DISP_REG_OVL_SRC_CON 0x002c #define DISP_REG_OVL_CON(n) (0x0030 + 0x20 * (n)) @@ -38,10 +39,28 @@ #define DISP_REG_OVL_PITCH_MSB(n) (0x0040 + 0x20 * (n)) #define OVL_PITCH_MSB_2ND_SUBBUF BIT(16) #define DISP_REG_OVL_PITCH(n) (0x0044 + 0x20 * (n)) +#define OVL_CONST_BLEND BIT(28) #define DISP_REG_OVL_RDMA_CTRL(n) (0x00c0 + 0x20 * (n)) #define DISP_REG_OVL_RDMA_GMC(n) (0x00c8 + 0x20 * (n)) #define DISP_REG_OVL_ADDR_MT2701 0x0040 #define DISP_REG_OVL_CLRFMT_EXT 0x02D0 +#define DISP_REG_OVL_CLRFMT_EXT1 0x02D8 +#define OVL_CLRFMT_EXT1_CSC_EN(n) (1 << (((n) * 4) + 1)) +#define DISP_REG_OVL_Y2R_PARA_R0(n) (0x0134 + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_RMY (GENMASK(14, 0)) +#define DISP_REG_OVL_Y2R_PARA_G0(n) (0x013c + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_GMU (GENMASK(30, 16)) +#define DISP_REG_OVL_Y2R_PARA_B1(n) (0x0148 + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_BMV (GENMASK(14, 0)) +#define DISP_REG_OVL_Y2R_PARA_YUV_A_0(n) (0x014c + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_YA (GENMASK(10, 0)) +#define OVL_Y2R_PARA_C_CF_UA (GENMASK(26, 16)) +#define DISP_REG_OVL_Y2R_PARA_YUV_A_1(n) (0x0150 + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_VA (GENMASK(10, 0)) +#define DISP_REG_OVL_Y2R_PRE_ADD2(n) (0x0154 + 0x28 * (n)) +#define DISP_REG_OVL_R2R_R0(n) (0x0500 + 0x40 * (n)) +#define DISP_REG_OVL_R2R_G1(n) (0x0510 + 0x40 * (n)) +#define DISP_REG_OVL_R2R_B2(n) (0x0520 + 0x40 * (n)) #define DISP_REG_OVL_ADDR_MT8173 0x0f40 #define DISP_REG_OVL_ADDR(ovl, n) ((ovl)->data->addr + 0x20 * (n)) #define DISP_REG_OVL_HDR_ADDR(ovl, n) ((ovl)->data->addr + 0x20 * (n) + 0x04) @@ -51,13 +70,19 @@ #define GMC_THRESHOLD_HIGH ((1 << GMC_THRESHOLD_BITS) / 4) #define GMC_THRESHOLD_LOW ((1 << GMC_THRESHOLD_BITS) / 8) -#define OVL_CON_BYTE_SWAP BIT(24) -#define OVL_CON_MTX_YUV_TO_RGB (6 << 16) -#define OVL_CON_CLRFMT_RGB (1 << 12) -#define OVL_CON_CLRFMT_RGBA8888 (2 << 12) -#define OVL_CON_CLRFMT_ARGB8888 (3 << 12) -#define OVL_CON_CLRFMT_UYVY (4 << 12) -#define OVL_CON_CLRFMT_YUYV (5 << 12) +#define OVL_CON_CLRFMT_MAN BIT(23) +#define OVL_CON_BYTE_SWAP BIT(24) +#define OVL_CON_RGB_SWAP BIT(25) +#define OVL_CON_MTX_AUTO_DIS BIT(26) +#define OVL_CON_MTX_EN BIT(27) +#define OVL_CON_CLRFMT_RGB (1 << 12) +#define OVL_CON_CLRFMT_RGBA8888 (2 << 12) +#define OVL_CON_CLRFMT_ARGB8888 (3 << 12) +#define OVL_CON_CLRFMT_PARGB8888 (OVL_CON_CLRFMT_ARGB8888 | OVL_CON_CLRFMT_MAN) +#define OVL_CON_CLRFMT_UYVY (4 << 12) +#define OVL_CON_CLRFMT_YUYV (5 << 12) +#define OVL_CON_MTX_YUV_TO_RGB (6 << 16) +#define OVL_CON_MTX_PROGRAMMABLE (8 << 16) #define OVL_CON_CLRFMT_RGB565(ovl) ((ovl)->data->fmt_rgb565_is_0 ? \ 0 : OVL_CON_CLRFMT_RGB) #define OVL_CON_CLRFMT_RGB888(ovl) ((ovl)->data->fmt_rgb565_is_0 ? \ @@ -71,6 +96,22 @@ #define OVL_CON_VIRT_FLIP BIT(9) #define OVL_CON_HORZ_FLIP BIT(10) +static inline bool is_10bit_rgb(u32 fmt) +{ + switch (fmt) { + case DRM_FORMAT_XRGB2101010: + case DRM_FORMAT_ARGB2101010: + case DRM_FORMAT_RGBX1010102: + case DRM_FORMAT_RGBA1010102: + case DRM_FORMAT_XBGR2101010: + case DRM_FORMAT_ABGR2101010: + case DRM_FORMAT_BGRX1010102: + case DRM_FORMAT_BGRA1010102: + return true; + } + return false; +} + static const u32 mt8173_formats[] = { DRM_FORMAT_XRGB8888, DRM_FORMAT_ARGB8888, @@ -88,12 +129,20 @@ static const u32 mt8173_formats[] = { static const u32 mt8195_formats[] = { DRM_FORMAT_XRGB8888, DRM_FORMAT_ARGB8888, + DRM_FORMAT_XRGB2101010, DRM_FORMAT_ARGB2101010, DRM_FORMAT_BGRX8888, DRM_FORMAT_BGRA8888, + DRM_FORMAT_BGRX1010102, DRM_FORMAT_BGRA1010102, DRM_FORMAT_ABGR8888, DRM_FORMAT_XBGR8888, + DRM_FORMAT_XBGR2101010, + DRM_FORMAT_ABGR2101010, + DRM_FORMAT_RGBX8888, + DRM_FORMAT_RGBA8888, + DRM_FORMAT_RGBX1010102, + DRM_FORMAT_RGBA1010102, DRM_FORMAT_RGB888, DRM_FORMAT_BGR888, DRM_FORMAT_RGB565, @@ -207,14 +256,19 @@ void mtk_ovl_clk_disable(struct device *dev) void mtk_ovl_start(struct device *dev) { struct mtk_disp_ovl *ovl = dev_get_drvdata(dev); + unsigned int reg = readl(ovl->regs + DISP_REG_OVL_DATAPATH_CON); - if (ovl->data->smi_id_en) { - unsigned int reg; + if (ovl->data->smi_id_en) + reg |= OVL_LAYER_SMI_ID_EN; - reg = readl(ovl->regs + DISP_REG_OVL_DATAPATH_CON); - reg = reg | OVL_LAYER_SMI_ID_EN; - writel_relaxed(reg, ovl->regs + DISP_REG_OVL_DATAPATH_CON); - } + /* + * clamp output to 10 bits per channel + * overflow and underflow usually happens when doing Y2R conversion + * this bit should be always enable to avoid this kind of situation + */ + reg |= OVL_OUTPUT_CLAMP; + + writel_relaxed(reg, ovl->regs + DISP_REG_OVL_DATAPATH_CON); writel_relaxed(0x1, ovl->regs + DISP_REG_OVL_EN); } @@ -253,9 +307,7 @@ static void mtk_ovl_set_bit_depth(struct device *dev, int idx, u32 format, reg = readl(ovl->regs + DISP_REG_OVL_CLRFMT_EXT); reg &= ~OVL_CON_CLRFMT_BIT_DEPTH_MASK(idx); - if (format == DRM_FORMAT_RGBA1010102 || - format == DRM_FORMAT_BGRA1010102 || - format == DRM_FORMAT_ARGB2101010) + if (is_10bit_rgb(format)) bit_depth = OVL_CON_CLRFMT_10_BIT; reg |= OVL_CON_CLRFMT_BIT_DEPTH(bit_depth, idx); @@ -273,7 +325,8 @@ void mtk_ovl_config(struct device *dev, unsigned int w, if (w != 0 && h != 0) mtk_ddp_write_relaxed(cmdq_pkt, h << 16 | w, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_ROI_SIZE); - mtk_ddp_write_relaxed(cmdq_pkt, 0x0, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_ROI_BGCLR); + mtk_ddp_write_relaxed(cmdq_pkt, 0xff000000, &ovl->cmdq_reg, ovl->regs, + DISP_REG_OVL_ROI_BGCLR); mtk_ddp_write(cmdq_pkt, 0x1, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_RST); mtk_ddp_write(cmdq_pkt, 0x0, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_RST); @@ -356,7 +409,8 @@ void mtk_ovl_layer_off(struct device *dev, unsigned int idx, DISP_REG_OVL_RDMA_CTRL(idx)); } -static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt) +static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt, + unsigned int blend_mode) { /* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX" * is defined in mediatek HW data sheet. @@ -375,17 +429,37 @@ static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt) return OVL_CON_CLRFMT_RGB888(ovl) | OVL_CON_BYTE_SWAP; case DRM_FORMAT_RGBX8888: case DRM_FORMAT_RGBA8888: + return blend_mode == DRM_MODE_BLEND_COVERAGE ? + OVL_CON_CLRFMT_ARGB8888 : + OVL_CON_CLRFMT_PARGB8888; + case DRM_FORMAT_RGBX1010102: + case DRM_FORMAT_RGBA1010102: return OVL_CON_CLRFMT_ARGB8888; case DRM_FORMAT_BGRX8888: case DRM_FORMAT_BGRA8888: + return OVL_CON_BYTE_SWAP | + (blend_mode == DRM_MODE_BLEND_COVERAGE ? + OVL_CON_CLRFMT_ARGB8888 : + OVL_CON_CLRFMT_PARGB8888); + case DRM_FORMAT_BGRX1010102: case DRM_FORMAT_BGRA1010102: return OVL_CON_CLRFMT_ARGB8888 | OVL_CON_BYTE_SWAP; case DRM_FORMAT_XRGB8888: case DRM_FORMAT_ARGB8888: + return blend_mode == DRM_MODE_BLEND_COVERAGE ? + OVL_CON_CLRFMT_RGBA8888 : + OVL_CON_CLRFMT_PARGB8888; + case DRM_FORMAT_XRGB2101010: case DRM_FORMAT_ARGB2101010: return OVL_CON_CLRFMT_RGBA8888; case DRM_FORMAT_XBGR8888: case DRM_FORMAT_ABGR8888: + return OVL_CON_RGB_SWAP | + (blend_mode == DRM_MODE_BLEND_COVERAGE ? + OVL_CON_CLRFMT_RGBA8888 : + OVL_CON_CLRFMT_PARGB8888); + case DRM_FORMAT_XBGR2101010: + case DRM_FORMAT_ABGR2101010: return OVL_CON_CLRFMT_RGBA8888 | OVL_CON_BYTE_SWAP; case DRM_FORMAT_UYVY: return OVL_CON_CLRFMT_UYVY | OVL_CON_MTX_YUV_TO_RGB; @@ -407,6 +481,8 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx, unsigned int fmt = pending->format; unsigned int offset = (pending->y << 16) | pending->x; unsigned int src_size = (pending->height << 16) | pending->width; + unsigned int blend_mode = state->base.pixel_blend_mode; + unsigned int ignore_pixel_alpha = 0; unsigned int con; bool is_afbc = pending->modifier != DRM_FORMAT_MOD_LINEAR; union overlay_pitch { @@ -419,14 +495,92 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx, overlay_pitch.pitch = pitch; - if (!pending->enable) { + if (!pending->enable || !pending->width || !pending->height) { mtk_ovl_layer_off(dev, idx, cmdq_pkt); return; } - con = ovl_fmt_convert(ovl, fmt); - if (state->base.fb && state->base.fb->format->has_alpha) - con |= OVL_CON_AEN | OVL_CON_ALPHA; + con = ovl_fmt_convert(ovl, fmt, blend_mode); + if (state->base.fb) { + con |= OVL_CON_AEN; + con |= state->base.alpha & 0xff; + } + + if (blend_mode == DRM_MODE_BLEND_PIXEL_NONE || + (state->base.fb && !state->base.fb->format->has_alpha)) + ignore_pixel_alpha = OVL_CONST_BLEND; + + /* need to do Y2R and R2R to reduce 10bit data to 8bit for CRC calculation */ + if (ovl->data->supports_clrfmt_ext) { + u32 y2r_coef = 0, y2r_offset = 0, r2r_coef = 0, csc_en = 0; + + if (is_10bit_rgb(fmt)) { + con |= OVL_CON_MTX_AUTO_DIS | OVL_CON_MTX_EN | OVL_CON_MTX_PROGRAMMABLE; + + /* + * Y2R coef setting + * bit 13 is 2^1, bit 12 is 2^0, bit 11 is 2^-1, + * bit 10 is 2^-2 = 0.25 + */ + y2r_coef = BIT(10); + + /* -1 in 10bit */ + y2r_offset = GENMASK(10, 0) - 1; + + /* + * R2R coef setting + * bit 19 is 2^1, bit 18 is 2^0, bit 17 is 2^-1, + * bit 20 is 2^2 = 4 + */ + r2r_coef = BIT(20); + + /* CSC_EN is for R2R */ + csc_en = OVL_CLRFMT_EXT1_CSC_EN(idx); + + /* + * 1. YUV input data - 1 and shift right for 2 bits to remove it + * [R'] [0.25 0 0] [Y in - 1] + * [G'] = [ 0 0.25 0] * [U in - 1] + * [B'] [ 0 0 0.25] [V in - 1] + * + * 2. shift left for 2 bit letting the last 2 bits become 0 + * [R out] [ 4 0 0] [R'] + * [G out] = [ 0 4 0] * [G'] + * [B out] [ 0 0 4] [B'] + */ + } + + mtk_ddp_write_mask(cmdq_pkt, y2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_R0(idx), + OVL_Y2R_PARA_C_CF_RMY); + mtk_ddp_write_mask(cmdq_pkt, (y2r_coef << 16), + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_G0(idx), + OVL_Y2R_PARA_C_CF_GMU); + mtk_ddp_write_mask(cmdq_pkt, y2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_B1(idx), + OVL_Y2R_PARA_C_CF_BMV); + + mtk_ddp_write_mask(cmdq_pkt, y2r_offset, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_YUV_A_0(idx), + OVL_Y2R_PARA_C_CF_YA); + mtk_ddp_write_mask(cmdq_pkt, (y2r_offset << 16), + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_YUV_A_0(idx), + OVL_Y2R_PARA_C_CF_UA); + mtk_ddp_write_mask(cmdq_pkt, y2r_offset, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_YUV_A_1(idx), + OVL_Y2R_PARA_C_CF_VA); + + mtk_ddp_write_relaxed(cmdq_pkt, r2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_R2R_R0(idx)); + mtk_ddp_write_relaxed(cmdq_pkt, r2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_R2R_G1(idx)); + mtk_ddp_write_relaxed(cmdq_pkt, r2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_R2R_B2(idx)); + + mtk_ddp_write_mask(cmdq_pkt, csc_en, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_CLRFMT_EXT1, + OVL_CLRFMT_EXT1_CSC_EN(idx)); + } if (pending->rotation & DRM_MODE_REFLECT_Y) { con |= OVL_CON_VIRT_FLIP; @@ -443,8 +597,8 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx, mtk_ddp_write_relaxed(cmdq_pkt, con, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_CON(idx)); - mtk_ddp_write_relaxed(cmdq_pkt, overlay_pitch.split_pitch.lsb, &ovl->cmdq_reg, ovl->regs, - DISP_REG_OVL_PITCH(idx)); + mtk_ddp_write_relaxed(cmdq_pkt, overlay_pitch.split_pitch.lsb | ignore_pixel_alpha, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_PITCH(idx)); mtk_ddp_write_relaxed(cmdq_pkt, src_size, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_SRC_SIZE(idx)); mtk_ddp_write_relaxed(cmdq_pkt, offset, &ovl->cmdq_reg, ovl->regs,