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Thu, 15 May 2025 02:35:13 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.39; Thu, 15 May 2025 17:35:10 +0800 Received: from mtksitap99.mediatek.inc (10.233.130.16) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1258.39 via Frontend Transport; Thu, 15 May 2025 17:35:10 +0800 From: paul-pl.chen To: , , , , Subject: [PATCH v3 13/17] drm/mediatek: add BLENDER support for MT8196 Date: Thu, 15 May 2025 17:34:25 +0800 Message-ID: <20250515093454.1729720-14-paul-pl.chen@mediatek.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250515093454.1729720-1-paul-pl.chen@mediatek.com> References: <20250515093454.1729720-1-paul-pl.chen@mediatek.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250515_103532_953296_82632449 X-CRM114-Status: GOOD ( 24.95 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, xiandong.wang@mediatek.com, jason-jh.lin@mediatek.com, singo.chang@mediatek.com, treapking@chromium.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Project_Global_Chrome_Upstream_Group@mediatek.com, paul-pl.chen@mediatek.com, nancy.lin@mediatek.com, linux-mediatek@lists.infradead.org, sunny.shen@mediatek.com, p.zabel@pengutronix.de, sirius.wang@mediatek.com, matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Paul-pl Chen BLENDER executes the alpha blending function for overlapping layers from different sources, which is the primary function of the overlapping system. Signed-off-by: Nancy Lin Signed-off-by: Paul-pl Chen --- drivers/gpu/drm/mediatek/Makefile | 1 + drivers/gpu/drm/mediatek/mtk_ddp_comp.c | 1 + drivers/gpu/drm/mediatek/mtk_ddp_comp.h | 1 + drivers/gpu/drm/mediatek/mtk_disp_blender.c | 264 ++++++++++++++++++++ drivers/gpu/drm/mediatek/mtk_disp_blender.h | 10 + drivers/gpu/drm/mediatek/mtk_disp_drv.h | 12 + drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 + drivers/gpu/drm/mediatek/mtk_drm_drv.h | 1 + 8 files changed, 291 insertions(+) create mode 100644 drivers/gpu/drm/mediatek/mtk_disp_blender.c create mode 100644 drivers/gpu/drm/mediatek/mtk_disp_blender.h diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile index db92f4fb353d..a7b9ebe27f68 100644 --- a/drivers/gpu/drm/mediatek/Makefile +++ b/drivers/gpu/drm/mediatek/Makefile @@ -3,6 +3,7 @@ mediatek-drm-y := mtk_crtc.o \ mtk_ddp_comp.o \ mtk_disp_aal.o \ + mtk_disp_blender.o \ mtk_disp_ccorr.o \ mtk_disp_color.o \ mtk_disp_exdma.o \ diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c index 3e0739d8e6f1..e65c6df987f2 100644 --- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c @@ -445,6 +445,7 @@ static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = { [MTK_DP_INTF] = "dp-intf", [MTK_DPI] = "dpi", [MTK_DSI] = "dsi", + [MTK_OVL_BLENDER] = "blender", [MTK_OVL_EXDMA] = "exdma", }; diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_ddp_comp.h index 86dc0ee3924c..075ba5683f93 100644 --- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.h @@ -43,6 +43,7 @@ enum mtk_ddp_comp_type { MTK_DPI, MTK_DP_INTF, MTK_DSI, + MTK_OVL_BLENDER, MTK_OVL_EXDMA, MTK_DDP_COMP_TYPE_MAX, }; diff --git a/drivers/gpu/drm/mediatek/mtk_disp_blender.c b/drivers/gpu/drm/mediatek/mtk_disp_blender.c new file mode 100644 index 000000000000..7c73bce99592 --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_disp_blender.c @@ -0,0 +1,264 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2025 MediaTek Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mtk_crtc.h" +#include "mtk_ddp_comp.h" +#include "mtk_disp_drv.h" +#include "mtk_drm_drv.h" +#include "mtk_disp_blender.h" +#include "mtk_disp_ovl.h" + +#define DISP_REG_OVL_BLD_DATAPATH_CON 0x010 +#define OVL_BLD_BGCLR_IN_SEL BIT(0) +#define OVL_BLD_BGCLR_OUT_TO_PROC BIT(4) +#define OVL_BLD_BGCLR_OUT_TO_NEXT_LAYER BIT(5) +#define DISP_REG_OVL_BLD_EN 0x020 +#define OVL_BLD_EN BIT(0) +#define OVL_BLD_FORCE_RELAY_MODE BIT(4) +#define OVL_BLD_RELAY_MODE BIT(5) +#define DISP_REG_OVL_BLD_RST 0x024 +#define OVL_BLD_RST BIT(0) +#define DISP_REG_OVL_BLD_SHADOW_CTRL 0x028 +#define OVL_BLD_BYPASS_SHADOW BIT(2) +#define DISP_REG_OVL_BLD_BGCLR_BALCK 0xff000000 +#define DISP_REG_OVL_BLD_ROI_SIZE 0x030 +#define DISP_REG_OVL_BLD_L_EN 0x040 +#define OVL_BLD_L_EN BIT(0) +#define DISP_REG_OVL_BLD_OFFSET 0x044 +#define DISP_REG_OVL_BLD_SRC_SIZE 0x048 +#define DISP_REG_OVL_BLD_L0_CLRFMT 0x050 +#define OVL_BLD_CON_FLD_CLRFMT GENMASK(3, 0) +#define OVL_BLD_CON_CLRFMT_MAN BIT(4) +#define OVL_BLD_CON_FLD_CLRFMT_NB GENMASK(9, 8) +#define OVL_BLD_CON_CLRFMT_NB_10_BIT BIT(8) +#define OVL_BLD_CON_BYTE_SWAP BIT(16) +#define OVL_BLD_CON_RGB_SWAP BIT(17) +#define DISP_REG_OVL_BLD_BGCLR_CLR 0x104 +#define DISP_REG_OVL_BLD_L_CON2 0x200 +#define OVL_BLD_L_ALPHA GENMASK(7, 0) +#define OVL_BLD_L_ALPHA_EN BIT(12) +#define DISP_REG_OVL_BLD_L0_ALPHA_SEL 0x208 +#define OVL_BLD_L0_CONST BIT(24) +#define DISP_REG_OVL_BLD_L0_CLR 0x20c +#define OVL_BLD_CON_CLRFMT_MAN BIT(4) + +struct mtk_disp_blender { + void __iomem *regs; + struct clk *clk; + struct cmdq_client_reg cmdq_reg; +}; + +void mtk_disp_blender_layer_config(struct device *dev, struct mtk_plane_state *state, + struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_disp_blender *priv = dev_get_drvdata(dev); + struct mtk_plane_pending_state *pending = &state->pending; + u32 alpha, clrfmt, ignore_pixel_alpha = 0; + u32 blend_mode = mtk_ovl_get_blend_mode(state, MTK_OVL_SUPPORT_BLEND_MODES); + + if (!pending->enable) { + mtk_ddp_write(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs, DISP_REG_OVL_BLD_L_EN); + return; + } + + mtk_ddp_write(cmdq_pkt, pending->y << 16 | pending->x, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_OFFSET); + + mtk_ddp_write(cmdq_pkt, pending->height << 16 | pending->width, &priv->cmdq_reg, + priv->regs, DISP_REG_OVL_BLD_SRC_SIZE); + + clrfmt = mtk_ovl_fmt_convert(pending->format, blend_mode, true, false, 0, + OVL_BLD_CON_CLRFMT_MAN, OVL_BLD_CON_BYTE_SWAP, + OVL_BLD_CON_RGB_SWAP); + clrfmt |= mtk_ovl_is_10bit_rgb(pending->format) ? OVL_BLD_CON_CLRFMT_NB_10_BIT : 0; + mtk_ddp_write_mask(cmdq_pkt, clrfmt, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_L0_CLRFMT, OVL_BLD_CON_CLRFMT_MAN | + OVL_BLD_CON_RGB_SWAP | OVL_BLD_CON_BYTE_SWAP | + OVL_BLD_CON_FLD_CLRFMT | OVL_BLD_CON_FLD_CLRFMT_NB); + + if (mtk_ovl_is_ignore_pixel_alpha(state, blend_mode)) + ignore_pixel_alpha = OVL_BLD_L0_CONST; + mtk_ddp_write_mask(cmdq_pkt, ignore_pixel_alpha, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_L0_ALPHA_SEL, OVL_BLD_L0_CONST); + + alpha = (OVL_BLD_L_ALPHA & (state->base.alpha >> 8)) | OVL_BLD_L_ALPHA_EN; + mtk_ddp_write_mask(cmdq_pkt, alpha, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_L_CON2, OVL_BLD_L_ALPHA_EN | OVL_BLD_L_ALPHA); + + mtk_ddp_write(cmdq_pkt, OVL_BLD_L_EN, &priv->cmdq_reg, priv->regs, DISP_REG_OVL_BLD_L_EN); +} + +void mtk_disp_blender_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, bool most_top, + bool most_bottom, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_disp_blender *priv = dev_get_drvdata(dev); + u32 datapath; + + dev_dbg(dev, "%s-w:%d, h:%d\n", __func__, w, h); + mtk_ddp_write(cmdq_pkt, h << 16 | w, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_ROI_SIZE); + mtk_ddp_write(cmdq_pkt, DISP_REG_OVL_BLD_BGCLR_BALCK, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_BGCLR_CLR); + + /* + * The input source of blender layer can be EXDMA layer output or + * the blender constant layer itself. + * This color setting is configured for the blender constant layer. + */ + mtk_ddp_write(cmdq_pkt, DISP_REG_OVL_BLD_BGCLR_BALCK, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_L0_CLR); + + if (most_top) + datapath = OVL_BLD_BGCLR_OUT_TO_PROC; + else + datapath = OVL_BLD_BGCLR_OUT_TO_NEXT_LAYER; + /* + * The primary input is from EXDMA and the second input + * is optionally from another blender + */ + if (!most_bottom) + datapath |= OVL_BLD_BGCLR_IN_SEL; + + mtk_ddp_write_mask(cmdq_pkt, datapath, + &priv->cmdq_reg, priv->regs, DISP_REG_OVL_BLD_DATAPATH_CON, + OVL_BLD_BGCLR_OUT_TO_PROC | OVL_BLD_BGCLR_OUT_TO_NEXT_LAYER | + OVL_BLD_BGCLR_IN_SEL); +} + +void mtk_disp_blender_start(struct device *dev, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_disp_blender *priv = dev_get_drvdata(dev); + + mtk_ddp_write_mask(cmdq_pkt, OVL_BLD_BYPASS_SHADOW, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_SHADOW_CTRL, OVL_BLD_BYPASS_SHADOW); + mtk_ddp_write_mask(cmdq_pkt, OVL_BLD_EN, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_EN, OVL_BLD_EN); +} + +void mtk_disp_blender_stop(struct device *dev, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_disp_blender *priv = dev_get_drvdata(dev); + + mtk_ddp_write_mask(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_EN, OVL_BLD_EN); + + mtk_ddp_write_mask(cmdq_pkt, OVL_BLD_RST, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_RST, OVL_BLD_RST); + mtk_ddp_write_mask(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs, + DISP_REG_OVL_BLD_RST, OVL_BLD_RST); +} + +int mtk_disp_blender_clk_enable(struct device *dev) +{ + struct mtk_disp_blender *priv = dev_get_drvdata(dev); + + return clk_prepare_enable(priv->clk); +} + +void mtk_disp_blender_clk_disable(struct device *dev) +{ + struct mtk_disp_blender *priv = dev_get_drvdata(dev); + + clk_disable_unprepare(priv->clk); +} + +u32 mtk_disp_blender_get_blend_modes(struct device *dev) +{ + return MTK_OVL_SUPPORT_BLEND_MODES; +} + +static int mtk_disp_blender_bind(struct device *dev, struct device *master, + void *data) +{ + return 0; +} + +static void mtk_disp_blender_unbind(struct device *dev, struct device *master, void *data) +{ +} + +static const struct component_ops mtk_disp_blender_component_ops = { + .bind = mtk_disp_blender_bind, + .unbind = mtk_disp_blender_unbind, +}; + +static int mtk_disp_blender_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct resource *res; + struct mtk_disp_blender *priv; + int ret = 0; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + priv->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(priv->regs)) { + dev_err(dev, "failed to ioremap blender\n"); + return PTR_ERR(priv->regs); + } + + priv->clk = devm_clk_get(dev, NULL); + if (IS_ERR(priv->clk)) { + dev_err(dev, "failed to get blender clk\n"); + return PTR_ERR(priv->clk); + } + +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0); + if (ret) + dev_dbg(dev, "No mediatek,gce-client-reg\n"); +#endif + platform_set_drvdata(pdev, priv); + + ret = component_add(dev, &mtk_disp_blender_component_ops); + if (ret) + dev_notice(dev, "Failed to add component: %d\n", ret); + + return ret; +} + +static void mtk_disp_blender_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &mtk_disp_blender_component_ops); +} + +static const struct of_device_id mtk_disp_blender_driver_dt_match[] = { + { .compatible = "mediatek,mt8196-blender"}, + {}, +}; + +MODULE_DEVICE_TABLE(of, mtk_disp_blender_driver_dt_match); + +struct platform_driver mtk_disp_blender_driver = { + .probe = mtk_disp_blender_probe, + .remove = mtk_disp_blender_remove, + .driver = { + .name = "mediatek-disp-blender", + .owner = THIS_MODULE, + .of_match_table = mtk_disp_blender_driver_dt_match, + }, +}; + +MODULE_AUTHOR("Nancy Lin "); +MODULE_DESCRIPTION("MediaTek Blender Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/mediatek/mtk_disp_blender.h b/drivers/gpu/drm/mediatek/mtk_disp_blender.h new file mode 100644 index 000000000000..a47ab128649d --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_disp_blender.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2025 MediaTek Inc. + */ + +#ifndef __MTK_DISP_BLENDER_H__ +#define __MTK_DISP_BLENDER_H__ + +u32 mtk_disp_blender_get_blend_modes(struct device *dev); +#endif // __MTK_DISP_BLENDER_H__ diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h index 4e3d2510bef5..39e3af1e2b16 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -9,6 +9,7 @@ #include #include #include +#include "mtk_disp_blender.h" #include "mtk_mdp_rdma.h" #include "mtk_plane.h" @@ -39,6 +40,17 @@ void mtk_color_config(struct device *dev, unsigned int w, unsigned int bpc, struct cmdq_pkt *cmdq_pkt); void mtk_color_start(struct device *dev); +void mtk_disp_blender_start(struct device *dev, struct cmdq_pkt *cmdq_pkt); +void mtk_disp_blender_stop(struct device *dev, struct cmdq_pkt *cmdq_pkt); +int mtk_disp_blender_clk_enable(struct device *dev); +void mtk_disp_blender_clk_disable(struct device *dev); +void mtk_disp_blender_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, bool most_top, bool most_bottom, + struct cmdq_pkt *cmdq_pkt); +void mtk_disp_blender_layer_config(struct device *dev, struct mtk_plane_state *state, + struct cmdq_pkt *cmdq_pkt); + int mtk_disp_exdma_clk_enable(struct device *dev); void mtk_disp_exdma_clk_disable(struct device *dev); void mtk_disp_exdma_start(struct device *dev, struct cmdq_pkt *cmdq_pkt); diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index bb7306a942ff..7a14f45d5f97 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -1274,6 +1274,7 @@ static struct platform_driver mtk_drm_platform_driver = { static struct platform_driver * const mtk_drm_drivers[] = { &mtk_disp_aal_driver, + &mtk_disp_blender_driver, &mtk_disp_ccorr_driver, &mtk_disp_color_driver, &mtk_disp_exdma_driver, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h index 898a75898775..89178de1478f 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h @@ -70,6 +70,7 @@ struct mtk_drm_private { }; extern struct platform_driver mtk_disp_aal_driver; +extern struct platform_driver mtk_disp_blender_driver; extern struct platform_driver mtk_disp_ccorr_driver; extern struct platform_driver mtk_disp_color_driver; extern struct platform_driver mtk_disp_exdma_driver; -- 2.45.2