| Message ID | 20211029075203.17093-17-nancy.lin@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add MediaTek SoC DRM (vdosys1) support for mt8195 | expand |
Hi, Nancy: Nancy.Lin <nancy.lin@mediatek.com> 於 2021年10月29日 週五 下午3:52寫道： > > ETHDR is a part of ovl_adaptor. > ETHDR is designed for HDR video and graphics conversion in the external > display path. It handles multiple HDR input types and performs tone > mapping, color space/color format conversion, and then combine > different layers, output the required HDR or SDR signal to the > subsequent display path. > > Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com> > --- > drivers/gpu/drm/mediatek/Makefile | 1 + > drivers/gpu/drm/mediatek/mtk_ethdr.c | 399 +++++++++++++++++++++++++++ > drivers/gpu/drm/mediatek/mtk_ethdr.h | 25 ++ > 3 files changed, 425 insertions(+) > create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.c > create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.h > > diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile > index 6e604a933ed0..fb158a1e7f06 100644 > --- a/drivers/gpu/drm/mediatek/Makefile > +++ b/drivers/gpu/drm/mediatek/Makefile > @@ -14,6 +14,7 @@ mediatek-drm-y := mtk_disp_aal.o \ > mtk_drm_plane.o \ > mtk_dsi.o \ > mtk_dpi.o \ > + mtk_ethdr.o \ > mtk_mdp_rdma.o > > obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o > diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c > new file mode 100644 > index 000000000000..86b584e9cf2c > --- /dev/null > +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c > @@ -0,0 +1,399 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * Copyright (c) 2021 MediaTek Inc. > + */ > + > +#include <drm/drm_fourcc.h> > +#include <linux/clk.h> > +#include <linux/component.h> > +#include <linux/of_device.h> > +#include <linux/of_address.h> > +#include <linux/platform_device.h> > +#include <linux/reset.h> > +#include <linux/soc/mediatek/mtk-cmdq.h> > +#include <linux/soc/mediatek/mtk-mmsys.h> > + > +#include "mtk_drm_crtc.h" > +#include "mtk_drm_ddp_comp.h" > +#include "mtk_drm_drv.h" > +#include "mtk_ethdr.h" > + > +#define MIX_INTEN 0x4 > +#define MIX_FME_CPL_INTEN BIT(1) > +#define MIX_INTSTA 0x8 > +#define MIX_EN 0xc > +#define MIX_RST 0x14 > +#define MIX_ROI_SIZE 0x18 > +#define MIX_DATAPATH_CON 0x1c > +#define OUTPUT_NO_RND BIT(3) > +#define SOURCE_RGB_SEL BIT(7) > +#define BACKGROUND_RELAY (4 << 9) > +#define MIX_ROI_BGCLR 0x20 > +#define BGCLR_BLACK 0xff000000 > +#define MIX_SRC_CON 0x24 > +#define MIX_SRC_L0_EN BIT(0) > +#define MIX_L_SRC_CON(n) (0x28 + 0x18 * (n)) > +#define NON_PREMULTI_SOURCE (2 << 12) > +#define MIX_L_SRC_SIZE(n) (0x30 + 0x18 * (n)) > +#define MIX_L_SRC_OFFSET(n) (0x34 + 0x18 * (n)) > +#define MIX_FUNC_DCM0 0x120 > +#define MIX_FUNC_DCM1 0x124 > +#define MIX_FUNC_DCM_ENABLE 0xffffffff > + > +#define HDR_VDO_FE_0804_HDR_DM_FE 0x804 > +#define HDR_VDO_FE_0804_BYPASS_ALL 0xfd > +#define HDR_GFX_FE_0204_GFX_HDR_FE 0x204 > +#define HDR_GFX_FE_0204_BYPASS_ALL 0xfd > +#define HDR_VDO_BE_0204_VDO_DM_BE 0x204 > +#define HDR_VDO_BE_0204_BYPASS_ALL 0x7e > + > +#define MIXER_INX_MODE_BYPASS 0 > +#define MIXER_INX_MODE_EVEN_EXTEND 1 > +#define DEFAULT_9BIT_ALPHA 0x100 > +#define MIXER_ALPHA_AEN BIT(8) > +#define MIXER_ALPHA 0xff > +#define ETHDR_CLK_NUM 13 > + > +enum mtk_ethdr_comp_id { > + ETHDR_MIXER, > + ETHDR_VDO_FE0, > + ETHDR_VDO_FE1, > + ETHDR_GFX_FE0, > + ETHDR_GFX_FE1, > + ETHDR_VDO_BE, > + ETHDR_ADL_DS, > + ETHDR_ID_MAX > +}; > + > +struct mtk_ethdr_comp { > + struct device *dev; > + void __iomem *regs; > + struct cmdq_client_reg cmdq_base; > +}; > + > +struct mtk_ethdr { > + struct mtk_ethdr_comp ethdr_comp[ETHDR_ID_MAX]; > + struct clk_bulk_data ethdr_clk[ETHDR_CLK_NUM]; > + struct device *mmsys_dev; > + spinlock_t lock; /* protects vblank_cb and vblank_cb_data */ > + void (*vblank_cb)(void *data); > + void *vblank_cb_data; > + int irq; > +}; > + > +static const char * const ethdr_comp_str[] = { > + "ETHDR_MIXER", > + "ETHDR_VDO_FE0", > + "ETHDR_VDO_FE1", > + "ETHDR_GFX_FE0", > + "ETHDR_GFX_FE1", > + "ETHDR_VDO_BE", > + "ETHDR_ADL_DS", > + "ETHDR_ID_MAX" > +}; > + > +static const char * const ethdr_clk_str[] = { > + "ethdr_top", > + "mixer", > + "vdo_fe0", > + "vdo_fe1", > + "gfx_fe0", > + "gfx_fe1", > + "vdo_be", > + "adl_ds", > + "vdo_fe0_async", > + "vdo_fe1_async", > + "gfx_fe0_async", > + "gfx_fe1_async", > + "vdo_be_async", > +}; > + > +void mtk_ethdr_enable_vblank(struct device *dev, > + void (*vblank_cb)(void *), > + void *vblank_cb_data) > +{ > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > + unsigned long flags; > + > + spin_lock_irqsave(&priv->lock, flags); > + priv->vblank_cb = vblank_cb; > + priv->vblank_cb_data = vblank_cb_data; > + spin_unlock_irqrestore(&priv->lock, flags); > + > + writel(MIX_FME_CPL_INTEN, priv->ethdr_comp[ETHDR_MIXER].regs + MIX_INTEN); > +} > + > +void mtk_ethdr_disable_vblank(struct device *dev) > +{ > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > + unsigned long flags; > + > + spin_lock_irqsave(&priv->lock, flags); > + priv->vblank_cb = NULL; > + priv->vblank_cb_data = NULL; > + spin_unlock_irqrestore(&priv->lock, flags); > + > + writel(0x0, priv->ethdr_comp[ETHDR_MIXER].regs + MIX_INTEN); > +} > + > +static irqreturn_t mtk_ethdr_irq_handler(int irq, void *dev_id) > +{ > + struct mtk_ethdr *priv = dev_id; > + unsigned long flags; > + > + writel(0x0, priv->ethdr_comp[ETHDR_MIXER].regs + MIX_INTSTA); > + > + spin_lock_irqsave(&priv->lock, flags); > + if (!priv->vblank_cb) { > + spin_unlock_irqrestore(&priv->lock, flags); > + return IRQ_NONE; > + } > + > + priv->vblank_cb(priv->vblank_cb_data); > + spin_unlock_irqrestore(&priv->lock, flags); > + > + return IRQ_HANDLED; > +} > + > +void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, > + struct mtk_plane_state *state, > + struct cmdq_pkt *cmdq_pkt) > +{ > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; > + struct mtk_plane_pending_state *pending = &state->pending; > + unsigned int offset = (pending->x & 1) << 31 | pending->y << 16 | pending->x; > + unsigned int align_width = ALIGN_DOWN(pending->width, 2); > + unsigned int alpha_con = 0; > + > + dev_dbg(dev, "%s+ idx:%d", __func__, idx); > + > + if (idx >= 4) > + return; > + > + if (!pending->enable) { > + mtk_ddp_write(cmdq_pkt, 0, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_SIZE(idx)); > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_MODE, > + idx + 1, MIXER_INX_MODE_BYPASS, cmdq_pkt); > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_BIWIDTH, > + idx + 1, 0, cmdq_pkt); > + return; > + } > + > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_MODE, > + idx + 1, pending->x & 1 ? MIXER_INX_MODE_EVEN_EXTEND : > + MIXER_INX_MODE_BYPASS, cmdq_pkt); > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_BIWIDTH, > + idx + 1, align_width / 2 - 1, cmdq_pkt); > + > + if (state->base.fb && state->base.fb->format->has_alpha) { > + alpha_con = MIXER_ALPHA_AEN | MIXER_ALPHA; > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_HDR_ALPHA_SEL, > + idx + 1, 0, cmdq_pkt); > + } else { > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_HDR_ALPHA_SEL, > + idx + 1, 1, cmdq_pkt); > + } > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_ALPHA_ODD, idx + 1, > + DEFAULT_9BIT_ALPHA, cmdq_pkt); > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_ALPHA_EVEN, idx + 1, > + DEFAULT_9BIT_ALPHA, cmdq_pkt); > + > + mtk_ddp_write(cmdq_pkt, pending->height << 16 | align_width, &mixer->cmdq_base, > + mixer->regs, MIX_L_SRC_SIZE(idx)); > + mtk_ddp_write(cmdq_pkt, offset, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_OFFSET(idx)); > + mtk_ddp_write_mask(cmdq_pkt, alpha_con, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_CON(idx), > + 0x1ff); > + mtk_ddp_write_mask(cmdq_pkt, BIT(idx), &mixer->cmdq_base, mixer->regs, MIX_SRC_CON, > + BIT(idx)); > +} > + > +void mtk_ethdr_config(struct device *dev, unsigned int w, > + unsigned int h, unsigned int vrefresh, > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) > +{ > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > + struct mtk_ethdr_comp *vdo_fe0 = &priv->ethdr_comp[ETHDR_VDO_FE0]; > + struct mtk_ethdr_comp *vdo_fe1 = &priv->ethdr_comp[ETHDR_VDO_FE1]; > + struct mtk_ethdr_comp *gfx_fe0 = &priv->ethdr_comp[ETHDR_GFX_FE0]; > + struct mtk_ethdr_comp *gfx_fe1 = &priv->ethdr_comp[ETHDR_GFX_FE1]; > + struct mtk_ethdr_comp *vdo_be = &priv->ethdr_comp[ETHDR_VDO_BE]; > + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; > + > + dev_dbg(dev, "%s-w:%d, h:%d\n", __func__, w, h); > + > + mtk_ddp_write(cmdq_pkt, HDR_VDO_FE_0804_BYPASS_ALL, &vdo_fe0->cmdq_base, > + vdo_fe0->regs, HDR_VDO_FE_0804_HDR_DM_FE); > + > + mtk_ddp_write(cmdq_pkt, HDR_VDO_FE_0804_BYPASS_ALL, &vdo_fe1->cmdq_base, > + vdo_fe1->regs, HDR_VDO_FE_0804_HDR_DM_FE); > + > + mtk_ddp_write(cmdq_pkt, HDR_GFX_FE_0204_BYPASS_ALL, &gfx_fe0->cmdq_base, > + gfx_fe0->regs, HDR_GFX_FE_0204_GFX_HDR_FE); > + > + mtk_ddp_write(cmdq_pkt, HDR_GFX_FE_0204_BYPASS_ALL, &gfx_fe1->cmdq_base, > + gfx_fe1->regs, HDR_GFX_FE_0204_GFX_HDR_FE); > + > + mtk_ddp_write(cmdq_pkt, HDR_VDO_BE_0204_BYPASS_ALL, &vdo_be->cmdq_base, > + vdo_be->regs, HDR_VDO_BE_0204_VDO_DM_BE); > + > + mtk_ddp_write(cmdq_pkt, MIX_FUNC_DCM_ENABLE, &mixer->cmdq_base, mixer->regs, MIX_FUNC_DCM0); > + mtk_ddp_write(cmdq_pkt, MIX_FUNC_DCM_ENABLE, &mixer->cmdq_base, mixer->regs, MIX_FUNC_DCM1); > + mtk_ddp_write(cmdq_pkt, h << 16 | w, &mixer->cmdq_base, mixer->regs, MIX_ROI_SIZE); > + mtk_ddp_write(cmdq_pkt, BGCLR_BLACK, &mixer->cmdq_base, mixer->regs, MIX_ROI_BGCLR); > + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, > + MIX_L_SRC_CON(0)); > + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, > + MIX_L_SRC_CON(1)); > + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, > + MIX_L_SRC_CON(2)); > + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, > + MIX_L_SRC_CON(3)); > + mtk_ddp_write(cmdq_pkt, 0x0, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_SIZE(0)); > + mtk_ddp_write(cmdq_pkt, OUTPUT_NO_RND | SOURCE_RGB_SEL | BACKGROUND_RELAY, > + &mixer->cmdq_base, mixer->regs, MIX_DATAPATH_CON); > + mtk_ddp_write_mask(cmdq_pkt, MIX_SRC_L0_EN, &mixer->cmdq_base, mixer->regs, > + MIX_SRC_CON, MIX_SRC_L0_EN); > + > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_HDR_BE_ASYNC_WIDTH, 0, > + w / 2, cmdq_pkt); > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_HDR_BE_ASYNC_HEIGHT, 0, > + h, cmdq_pkt); > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_CH_SWAP, 4, 0, cmdq_pkt); > +} > + > +void mtk_ethdr_start(struct device *dev) > +{ > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; > + > + writel(1, mixer->regs + MIX_EN); > +} > + > +void mtk_ethdr_stop(struct device *dev) > +{ > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; > + > + writel(0, mixer->regs + MIX_EN); > + writel(1, mixer->regs + MIX_RST); > + reset_control_reset(devm_reset_control_array_get(dev, true, true)); > + writel(0, mixer->regs + MIX_RST); > +} > + > +int mtk_ethdr_clk_enable(struct device *dev) > +{ > + int ret; > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > + > + ret = clk_bulk_prepare_enable(ETHDR_CLK_NUM, priv->ethdr_clk); > + if (ret) > + dev_err(dev, > + "ethdr_clk prepare enable failed\n"); > + return ret; > +} > + > +void mtk_ethdr_clk_disable(struct device *dev) > +{ > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > + > + clk_bulk_disable_unprepare(ETHDR_CLK_NUM, priv->ethdr_clk); > +} > + > +static int mtk_ethdr_bind(struct device *dev, struct device *master, > + void *data) > +{ > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > + > + priv->mmsys_dev = data; > + return 0; > +} > + > +static void mtk_ethdr_unbind(struct device *dev, struct device *master, void *data) > +{ > +} > + > +static const struct component_ops mtk_ethdr_component_ops = { > + .bind = mtk_ethdr_bind, > + .unbind = mtk_ethdr_unbind, > +}; > + > +static int mtk_ethdr_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct mtk_ethdr *priv; > + int ret; > + int i; > + > + dev_info(dev, "%s+\n", __func__); > + > + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); > + if (!priv) > + return -ENOMEM; > + > + for (i = 0; i < ETHDR_ID_MAX; i++) { > + priv->ethdr_comp[i].dev = dev; > + priv->ethdr_comp[i].regs = of_iomap(dev->of_node, i); > +#if IS_REACHABLE(CONFIG_MTK_CMDQ) > + ret = cmdq_dev_get_client_reg(dev, > + &priv->ethdr_comp[i].cmdq_base, i); > + if (ret) > + dev_dbg(dev, "get mediatek,gce-client-reg fail!\n"); > +#endif > + dev_info(dev, "[DRM]regs:0x%x, node:%s\n", > + priv->ethdr_comp[i].regs, ethdr_comp_str[i]); I think it's enough to print i instead of ethdr_comp_str[i]. Except this, Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org> > + } > + > + for (i = 0; i < ETHDR_CLK_NUM; i++) > + priv->ethdr_clk[i].id = ethdr_clk_str[i]; > + ret = devm_clk_bulk_get_optional(dev, ETHDR_CLK_NUM, priv->ethdr_clk); > + if (ret) > + return ret; > + > + priv->irq = platform_get_irq(pdev, 0); > + if (priv->irq < 0) > + priv->irq = 0; > + > + if (priv->irq) { > + ret = devm_request_irq(dev, priv->irq, mtk_ethdr_irq_handler, > + IRQF_TRIGGER_NONE, dev_name(dev), priv); > + if (ret < 0) { > + dev_err(dev, "Failed to request irq %d: %d\n", priv->irq, ret); > + return ret; > + } > + } > + > + spin_lock_init(&priv->lock); > + platform_set_drvdata(pdev, priv); > + > + ret = component_add(dev, &mtk_ethdr_component_ops); > + if (ret) > + dev_notice(dev, "Failed to add component: %d\n", ret); > + > + dev_info(dev, "%s-\n", __func__); > + return ret; > +} > + > +static int mtk_ethdr_remove(struct platform_device *pdev) > +{ > + component_del(&pdev->dev, &mtk_ethdr_component_ops); > + return 0; > +} > + > +static const struct of_device_id mtk_ethdr_driver_dt_match[] = { > + { .compatible = "mediatek,mt8195-disp-ethdr"}, > + {}, > +}; > + > +MODULE_DEVICE_TABLE(of, mtk_ethdr_driver_dt_match); > + > +struct platform_driver mtk_ethdr_driver = { > + .probe = mtk_ethdr_probe, > + .remove = mtk_ethdr_remove, > + .driver = { > + .name = "mediatek-disp-ethdr", > + .owner = THIS_MODULE, > + .of_match_table = mtk_ethdr_driver_dt_match, > + }, > +}; > +module_platform_driver(mtk_ethdr_driver); > diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.h b/drivers/gpu/drm/mediatek/mtk_ethdr.h > new file mode 100644 > index 000000000000..84eb9bf2ede0 > --- /dev/null > +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.h > @@ -0,0 +1,25 @@ > +/* SPDX-License-Identifier: GPL-2.0-only */ > +/* > + * Copyright (c) 2021 MediaTek Inc. > + */ > + > +#ifndef __MTK_ETHDR_H__ > +#define __MTK_ETHDR_H__ > + > +#include <drm/mediatek_drm.h> > + > +void mtk_ethdr_start(struct device *dev); > +void mtk_ethdr_stop(struct device *dev); > +int mtk_ethdr_clk_enable(struct device *dev); > +void mtk_ethdr_clk_disable(struct device *dev); > +void mtk_ethdr_config(struct device *dev, unsigned int w, > + unsigned int h, unsigned int vrefresh, > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt); > +void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, > + struct mtk_plane_state *state, > + struct cmdq_pkt *cmdq_pkt); > +void mtk_ethdr_enable_vblank(struct device *dev, void (*vblank_cb)(void *), > + void *vblank_cb_data); > +void mtk_ethdr_disable_vblank(struct device *dev); > +#endif > + > -- > 2.18.0 >
Hi Chun-Kuang, Thanks for the review. On Fri, 2021-11-05 at 07:59 +0800, Chun-Kuang Hu wrote: > Hi, Nancy: > > Nancy.Lin <nancy.lin@mediatek.com> 於 2021年10月29日 週五 下午3:52寫道： > > > > ETHDR is a part of ovl_adaptor. > > ETHDR is designed for HDR video and graphics conversion in the > > external > > display path. It handles multiple HDR input types and performs tone > > mapping, color space/color format conversion, and then combine > > different layers, output the required HDR or SDR signal to the > > subsequent display path. > > > > Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com> > > --- > > drivers/gpu/drm/mediatek/Makefile | 1 + > > drivers/gpu/drm/mediatek/mtk_ethdr.c | 399 > > +++++++++++++++++++++++++++ > > drivers/gpu/drm/mediatek/mtk_ethdr.h | 25 ++ > > 3 files changed, 425 insertions(+) > > create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.c > > create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.h > > > > diff --git a/drivers/gpu/drm/mediatek/Makefile > > b/drivers/gpu/drm/mediatek/Makefile > > index 6e604a933ed0..fb158a1e7f06 100644 > > --- a/drivers/gpu/drm/mediatek/Makefile > > +++ b/drivers/gpu/drm/mediatek/Makefile > > @@ -14,6 +14,7 @@ mediatek-drm-y := mtk_disp_aal.o \ > > mtk_drm_plane.o \ > > mtk_dsi.o \ > > mtk_dpi.o \ > > + mtk_ethdr.o \ > > mtk_mdp_rdma.o > > > > obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o > > diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c > > b/drivers/gpu/drm/mediatek/mtk_ethdr.c > > new file mode 100644 > > index 000000000000..86b584e9cf2c > > --- /dev/null > > +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c > > @@ -0,0 +1,399 @@ > > +// SPDX-License-Identifier: GPL-2.0-only > > +/* > > + * Copyright (c) 2021 MediaTek Inc. > > + */ > > + > > +#include <drm/drm_fourcc.h> > > +#include <linux/clk.h> > > +#include <linux/component.h> > > +#include <linux/of_device.h> > > +#include <linux/of_address.h> > > +#include <linux/platform_device.h> > > +#include <linux/reset.h> > > +#include <linux/soc/mediatek/mtk-cmdq.h> > > +#include <linux/soc/mediatek/mtk-mmsys.h> > > + > > +#include "mtk_drm_crtc.h" > > +#include "mtk_drm_ddp_comp.h" > > +#include "mtk_drm_drv.h" > > +#include "mtk_ethdr.h" > > + > > +#define MIX_INTEN 0x4 > > +#define MIX_FME_CPL_INTEN BIT(1) > > +#define MIX_INTSTA 0x8 > > +#define MIX_EN 0xc > > +#define MIX_RST 0x14 > > +#define MIX_ROI_SIZE 0x18 > > +#define MIX_DATAPATH_CON 0x1c > > +#define OUTPUT_NO_RND BIT(3) > > +#define SOURCE_RGB_SEL BIT(7) > > +#define BACKGROUND_RELAY (4 << 9) > > +#define MIX_ROI_BGCLR 0x20 > > +#define BGCLR_BLACK 0xff000000 > > +#define MIX_SRC_CON 0x24 > > +#define MIX_SRC_L0_EN BIT(0) > > +#define MIX_L_SRC_CON(n) (0x28 + 0x18 * (n)) > > +#define NON_PREMULTI_SOURCE (2 << 12) > > +#define MIX_L_SRC_SIZE(n) (0x30 + 0x18 * (n)) > > +#define MIX_L_SRC_OFFSET(n) (0x34 + 0x18 * (n)) > > +#define MIX_FUNC_DCM0 0x120 > > +#define MIX_FUNC_DCM1 0x124 > > +#define MIX_FUNC_DCM_ENABLE 0xffffffff > > + > > +#define HDR_VDO_FE_0804_HDR_DM_FE 0x804 > > +#define HDR_VDO_FE_0804_BYPASS_ALL 0xfd > > +#define HDR_GFX_FE_0204_GFX_HDR_FE 0x204 > > +#define HDR_GFX_FE_0204_BYPASS_ALL 0xfd > > +#define HDR_VDO_BE_0204_VDO_DM_BE 0x204 > > +#define HDR_VDO_BE_0204_BYPASS_ALL 0x7e > > + > > +#define MIXER_INX_MODE_BYPASS 0 > > +#define MIXER_INX_MODE_EVEN_EXTEND 1 > > +#define DEFAULT_9BIT_ALPHA 0x100 > > +#define MIXER_ALPHA_AEN BIT(8) > > +#define MIXER_ALPHA 0xff > > +#define ETHDR_CLK_NUM 13 > > + > > +enum mtk_ethdr_comp_id { > > + ETHDR_MIXER, > > + ETHDR_VDO_FE0, > > + ETHDR_VDO_FE1, > > + ETHDR_GFX_FE0, > > + ETHDR_GFX_FE1, > > + ETHDR_VDO_BE, > > + ETHDR_ADL_DS, > > + ETHDR_ID_MAX > > +}; > > + > > +struct mtk_ethdr_comp { > > + struct device *dev; > > + void __iomem *regs; > > + struct cmdq_client_reg cmdq_base; > > +}; > > + > > +struct mtk_ethdr { > > + struct mtk_ethdr_comp ethdr_comp[ETHDR_ID_MAX]; > > + struct clk_bulk_data ethdr_clk[ETHDR_CLK_NUM]; > > + struct device *mmsys_dev; > > + spinlock_t lock; /* protects vblank_cb and > > vblank_cb_data */ > > + void (*vblank_cb)(void *data); > > + void *vblank_cb_data; > > + int irq; > > +}; > > + > > +static const char * const ethdr_comp_str[] = { > > + "ETHDR_MIXER", > > + "ETHDR_VDO_FE0", > > + "ETHDR_VDO_FE1", > > + "ETHDR_GFX_FE0", > > + "ETHDR_GFX_FE1", > > + "ETHDR_VDO_BE", > > + "ETHDR_ADL_DS", > > + "ETHDR_ID_MAX" > > +}; > > + > > +static const char * const ethdr_clk_str[] = { > > + "ethdr_top", > > + "mixer", > > + "vdo_fe0", > > + "vdo_fe1", > > + "gfx_fe0", > > + "gfx_fe1", > > + "vdo_be", > > + "adl_ds", > > + "vdo_fe0_async", > > + "vdo_fe1_async", > > + "gfx_fe0_async", > > + "gfx_fe1_async", > > + "vdo_be_async", > > +}; > > + > > +void mtk_ethdr_enable_vblank(struct device *dev, > > + void (*vblank_cb)(void *), > > + void *vblank_cb_data) > > +{ > > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > > + unsigned long flags; > > + > > + spin_lock_irqsave(&priv->lock, flags); > > + priv->vblank_cb = vblank_cb; > > + priv->vblank_cb_data = vblank_cb_data; > > + spin_unlock_irqrestore(&priv->lock, flags); > > + > > + writel(MIX_FME_CPL_INTEN, priv- > > >ethdr_comp[ETHDR_MIXER].regs + MIX_INTEN); > > +} > > + > > +void mtk_ethdr_disable_vblank(struct device *dev) > > +{ > > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > > + unsigned long flags; > > + > > + spin_lock_irqsave(&priv->lock, flags); > > + priv->vblank_cb = NULL; > > + priv->vblank_cb_data = NULL; > > + spin_unlock_irqrestore(&priv->lock, flags); > > + > > + writel(0x0, priv->ethdr_comp[ETHDR_MIXER].regs + > > MIX_INTEN); > > +} > > + > > +static irqreturn_t mtk_ethdr_irq_handler(int irq, void *dev_id) > > +{ > > + struct mtk_ethdr *priv = dev_id; > > + unsigned long flags; > > + > > + writel(0x0, priv->ethdr_comp[ETHDR_MIXER].regs + > > MIX_INTSTA); > > + > > + spin_lock_irqsave(&priv->lock, flags); > > + if (!priv->vblank_cb) { > > + spin_unlock_irqrestore(&priv->lock, flags); > > + return IRQ_NONE; > > + } > > + > > + priv->vblank_cb(priv->vblank_cb_data); > > + spin_unlock_irqrestore(&priv->lock, flags); > > + > > + return IRQ_HANDLED; > > +} > > + > > +void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, > > + struct mtk_plane_state *state, > > + struct cmdq_pkt *cmdq_pkt) > > +{ > > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > > + struct mtk_ethdr_comp *mixer = &priv- > > >ethdr_comp[ETHDR_MIXER]; > > + struct mtk_plane_pending_state *pending = &state->pending; > > + unsigned int offset = (pending->x & 1) << 31 | pending->y > > << 16 | pending->x; > > + unsigned int align_width = ALIGN_DOWN(pending->width, 2); > > + unsigned int alpha_con = 0; > > + > > + dev_dbg(dev, "%s+ idx:%d", __func__, idx); > > + > > + if (idx >= 4) > > + return; > > + > > + if (!pending->enable) { > > + mtk_ddp_write(cmdq_pkt, 0, &mixer->cmdq_base, > > mixer->regs, MIX_L_SRC_SIZE(idx)); > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_MIXER_IN_MODE, > > + idx + 1, > > MIXER_INX_MODE_BYPASS, cmdq_pkt); > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_MIXER_IN_BIWIDTH, > > + idx + 1, 0, cmdq_pkt); > > + return; > > + } > > + > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_MIXER_IN_MODE, > > + idx + 1, pending->x & 1 ? > > MIXER_INX_MODE_EVEN_EXTEND : > > + MIXER_INX_MODE_BYPASS, cmdq_pkt); > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_MIXER_IN_BIWIDTH, > > + idx + 1, align_width / 2 - 1, > > cmdq_pkt); > > + > > + if (state->base.fb && state->base.fb->format->has_alpha) { > > + alpha_con = MIXER_ALPHA_AEN | MIXER_ALPHA; > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_HDR_ALPHA_SEL, > > + idx + 1, 0, cmdq_pkt); > > + } else { > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_HDR_ALPHA_SEL, > > + idx + 1, 1, cmdq_pkt); > > + } > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_MIXER_IN_ALPHA_ODD, idx + 1, > > + DEFAULT_9BIT_ALPHA, cmdq_pkt); > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_MIXER_IN_ALPHA_EVEN, idx + 1, > > + DEFAULT_9BIT_ALPHA, cmdq_pkt); > > + > > + mtk_ddp_write(cmdq_pkt, pending->height << 16 | > > align_width, &mixer->cmdq_base, > > + mixer->regs, MIX_L_SRC_SIZE(idx)); > > + mtk_ddp_write(cmdq_pkt, offset, &mixer->cmdq_base, mixer- > > >regs, MIX_L_SRC_OFFSET(idx)); > > + mtk_ddp_write_mask(cmdq_pkt, alpha_con, &mixer->cmdq_base, > > mixer->regs, MIX_L_SRC_CON(idx), > > + 0x1ff); > > + mtk_ddp_write_mask(cmdq_pkt, BIT(idx), &mixer->cmdq_base, > > mixer->regs, MIX_SRC_CON, > > + BIT(idx)); > > +} > > + > > +void mtk_ethdr_config(struct device *dev, unsigned int w, > > + unsigned int h, unsigned int vrefresh, > > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) > > +{ > > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > > + struct mtk_ethdr_comp *vdo_fe0 = &priv- > > >ethdr_comp[ETHDR_VDO_FE0]; > > + struct mtk_ethdr_comp *vdo_fe1 = &priv- > > >ethdr_comp[ETHDR_VDO_FE1]; > > + struct mtk_ethdr_comp *gfx_fe0 = &priv- > > >ethdr_comp[ETHDR_GFX_FE0]; > > + struct mtk_ethdr_comp *gfx_fe1 = &priv- > > >ethdr_comp[ETHDR_GFX_FE1]; > > + struct mtk_ethdr_comp *vdo_be = &priv- > > >ethdr_comp[ETHDR_VDO_BE]; > > + struct mtk_ethdr_comp *mixer = &priv- > > >ethdr_comp[ETHDR_MIXER]; > > + > > + dev_dbg(dev, "%s-w:%d, h:%d\n", __func__, w, h); > > + > > + mtk_ddp_write(cmdq_pkt, HDR_VDO_FE_0804_BYPASS_ALL, > > &vdo_fe0->cmdq_base, > > + vdo_fe0->regs, HDR_VDO_FE_0804_HDR_DM_FE); > > + > > + mtk_ddp_write(cmdq_pkt, HDR_VDO_FE_0804_BYPASS_ALL, > > &vdo_fe1->cmdq_base, > > + vdo_fe1->regs, HDR_VDO_FE_0804_HDR_DM_FE); > > + > > + mtk_ddp_write(cmdq_pkt, HDR_GFX_FE_0204_BYPASS_ALL, > > &gfx_fe0->cmdq_base, > > + gfx_fe0->regs, HDR_GFX_FE_0204_GFX_HDR_FE); > > + > > + mtk_ddp_write(cmdq_pkt, HDR_GFX_FE_0204_BYPASS_ALL, > > &gfx_fe1->cmdq_base, > > + gfx_fe1->regs, HDR_GFX_FE_0204_GFX_HDR_FE); > > + > > + mtk_ddp_write(cmdq_pkt, HDR_VDO_BE_0204_BYPASS_ALL, > > &vdo_be->cmdq_base, > > + vdo_be->regs, HDR_VDO_BE_0204_VDO_DM_BE); > > + > > + mtk_ddp_write(cmdq_pkt, MIX_FUNC_DCM_ENABLE, &mixer- > > >cmdq_base, mixer->regs, MIX_FUNC_DCM0); > > + mtk_ddp_write(cmdq_pkt, MIX_FUNC_DCM_ENABLE, &mixer- > > >cmdq_base, mixer->regs, MIX_FUNC_DCM1); > > + mtk_ddp_write(cmdq_pkt, h << 16 | w, &mixer->cmdq_base, > > mixer->regs, MIX_ROI_SIZE); > > + mtk_ddp_write(cmdq_pkt, BGCLR_BLACK, &mixer->cmdq_base, > > mixer->regs, MIX_ROI_BGCLR); > > + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer- > > >cmdq_base, mixer->regs, > > + MIX_L_SRC_CON(0)); > > + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer- > > >cmdq_base, mixer->regs, > > + MIX_L_SRC_CON(1)); > > + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer- > > >cmdq_base, mixer->regs, > > + MIX_L_SRC_CON(2)); > > + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer- > > >cmdq_base, mixer->regs, > > + MIX_L_SRC_CON(3)); > > + mtk_ddp_write(cmdq_pkt, 0x0, &mixer->cmdq_base, mixer- > > >regs, MIX_L_SRC_SIZE(0)); > > + mtk_ddp_write(cmdq_pkt, OUTPUT_NO_RND | SOURCE_RGB_SEL | > > BACKGROUND_RELAY, > > + &mixer->cmdq_base, mixer->regs, > > MIX_DATAPATH_CON); > > + mtk_ddp_write_mask(cmdq_pkt, MIX_SRC_L0_EN, &mixer- > > >cmdq_base, mixer->regs, > > + MIX_SRC_CON, MIX_SRC_L0_EN); > > + > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_HDR_BE_ASYNC_WIDTH, 0, > > + w / 2, cmdq_pkt); > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_HDR_BE_ASYNC_HEIGHT, 0, > > + h, cmdq_pkt); > > + mtk_mmsys_ddp_config(priv->mmsys_dev, > > MMSYS_CONFIG_MIXER_IN_CH_SWAP, 4, 0, cmdq_pkt); > > +} > > + > > +void mtk_ethdr_start(struct device *dev) > > +{ > > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > > + struct mtk_ethdr_comp *mixer = &priv- > > >ethdr_comp[ETHDR_MIXER]; > > + > > + writel(1, mixer->regs + MIX_EN); > > +} > > + > > +void mtk_ethdr_stop(struct device *dev) > > +{ > > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > > + struct mtk_ethdr_comp *mixer = &priv- > > >ethdr_comp[ETHDR_MIXER]; > > + > > + writel(0, mixer->regs + MIX_EN); > > + writel(1, mixer->regs + MIX_RST); > > + reset_control_reset(devm_reset_control_array_get(dev, true, > > true)); > > + writel(0, mixer->regs + MIX_RST); > > +} > > + > > +int mtk_ethdr_clk_enable(struct device *dev) > > +{ > > + int ret; > > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > > + > > + ret = clk_bulk_prepare_enable(ETHDR_CLK_NUM, priv- > > >ethdr_clk); > > + if (ret) > > + dev_err(dev, > > + "ethdr_clk prepare enable failed\n"); > > + return ret; > > +} > > + > > +void mtk_ethdr_clk_disable(struct device *dev) > > +{ > > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > > + > > + clk_bulk_disable_unprepare(ETHDR_CLK_NUM, priv->ethdr_clk); > > +} > > + > > +static int mtk_ethdr_bind(struct device *dev, struct device > > *master, > > + void *data) > > +{ > > + struct mtk_ethdr *priv = dev_get_drvdata(dev); > > + > > + priv->mmsys_dev = data; > > + return 0; > > +} > > + > > +static void mtk_ethdr_unbind(struct device *dev, struct device > > *master, void *data) > > +{ > > +} > > + > > +static const struct component_ops mtk_ethdr_component_ops = { > > + .bind = mtk_ethdr_bind, > > + .unbind = mtk_ethdr_unbind, > > +}; > > + > > +static int mtk_ethdr_probe(struct platform_device *pdev) > > +{ > > + struct device *dev = &pdev->dev; > > + struct mtk_ethdr *priv; > > + int ret; > > + int i; > > + > > + dev_info(dev, "%s+\n", __func__); > > + > > + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); > > + if (!priv) > > + return -ENOMEM; > > + > > + for (i = 0; i < ETHDR_ID_MAX; i++) { > > + priv->ethdr_comp[i].dev = dev; > > + priv->ethdr_comp[i].regs = of_iomap(dev->of_node, > > i); > > +#if IS_REACHABLE(CONFIG_MTK_CMDQ) > > + ret = cmdq_dev_get_client_reg(dev, > > + &priv- > > >ethdr_comp[i].cmdq_base, i); > > + if (ret) > > + dev_dbg(dev, "get mediatek,gce-client-reg > > fail!\n"); > > +#endif > > + dev_info(dev, "[DRM]regs:0x%x, node:%s\n", > > + priv->ethdr_comp[i].regs, > > ethdr_comp_str[i]); > > I think it's enough to print i instead of ethdr_comp_str[i]. > Except this, > > Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org> > OK. > > + } > > + > > + for (i = 0; i < ETHDR_CLK_NUM; i++) > > + priv->ethdr_clk[i].id = ethdr_clk_str[i]; > > + ret = devm_clk_bulk_get_optional(dev, ETHDR_CLK_NUM, priv- > > >ethdr_clk); > > + if (ret) > > + return ret; > > + > > + priv->irq = platform_get_irq(pdev, 0); > > + if (priv->irq < 0) > > + priv->irq = 0; > > + > > + if (priv->irq) { > > + ret = devm_request_irq(dev, priv->irq, > > mtk_ethdr_irq_handler, > > + IRQF_TRIGGER_NONE, > > dev_name(dev), priv); > > + if (ret < 0) { > > + dev_err(dev, "Failed to request irq %d: > > %d\n", priv->irq, ret); > > + return ret; > > + } > > + } > > + > > + spin_lock_init(&priv->lock); > > + platform_set_drvdata(pdev, priv); > > + > > + ret = component_add(dev, &mtk_ethdr_component_ops); > > + if (ret) > > + dev_notice(dev, "Failed to add component: %d\n", > > ret); > > + > > + dev_info(dev, "%s-\n", __func__); > > + return ret; > > +} > > + > > +static int mtk_ethdr_remove(struct platform_device *pdev) > > +{ > > + component_del(&pdev->dev, &mtk_ethdr_component_ops); > > + return 0; > > +} > > + > > +static const struct of_device_id mtk_ethdr_driver_dt_match[] = { > > + { .compatible = "mediatek,mt8195-disp-ethdr"}, > > + {}, > > +}; > > + > > +MODULE_DEVICE_TABLE(of, mtk_ethdr_driver_dt_match); > > + > > +struct platform_driver mtk_ethdr_driver = { > > + .probe = mtk_ethdr_probe, > > + .remove = mtk_ethdr_remove, > > + .driver = { > > + .name = "mediatek-disp-ethdr", > > + .owner = THIS_MODULE, > > + .of_match_table = mtk_ethdr_driver_dt_match, > > + }, > > +}; > > +module_platform_driver(mtk_ethdr_driver); > > diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.h > > b/drivers/gpu/drm/mediatek/mtk_ethdr.h > > new file mode 100644 > > index 000000000000..84eb9bf2ede0 > > --- /dev/null > > +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.h > > @@ -0,0 +1,25 @@ > > +/* SPDX-License-Identifier: GPL-2.0-only */ > > +/* > > + * Copyright (c) 2021 MediaTek Inc. > > + */ > > + > > +#ifndef __MTK_ETHDR_H__ > > +#define __MTK_ETHDR_H__ > > + > > +#include <drm/mediatek_drm.h> > > + > > +void mtk_ethdr_start(struct device *dev); > > +void mtk_ethdr_stop(struct device *dev); > > +int mtk_ethdr_clk_enable(struct device *dev); > > +void mtk_ethdr_clk_disable(struct device *dev); > > +void mtk_ethdr_config(struct device *dev, unsigned int w, > > + unsigned int h, unsigned int vrefresh, > > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt); > > +void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, > > + struct mtk_plane_state *state, > > + struct cmdq_pkt *cmdq_pkt); > > +void mtk_ethdr_enable_vblank(struct device *dev, void > > (*vblank_cb)(void *), > > + void *vblank_cb_data); > > +void mtk_ethdr_disable_vblank(struct device *dev); > > +#endif > > + > > -- > > 2.18.0 > >
diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile index 6e604a933ed0..fb158a1e7f06 100644 --- a/drivers/gpu/drm/mediatek/Makefile +++ b/drivers/gpu/drm/mediatek/Makefile @@ -14,6 +14,7 @@ mediatek-drm-y := mtk_disp_aal.o \ mtk_drm_plane.o \ mtk_dsi.o \ mtk_dpi.o \ + mtk_ethdr.o \ mtk_mdp_rdma.o obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c new file mode 100644 index 000000000000..86b584e9cf2c --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -0,0 +1,399 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021 MediaTek Inc. + */ + +#include <drm/drm_fourcc.h> +#include <linux/clk.h> +#include <linux/component.h> +#include <linux/of_device.h> +#include <linux/of_address.h> +#include <linux/platform_device.h> +#include <linux/reset.h> +#include <linux/soc/mediatek/mtk-cmdq.h> +#include <linux/soc/mediatek/mtk-mmsys.h> + +#include "mtk_drm_crtc.h" +#include "mtk_drm_ddp_comp.h" +#include "mtk_drm_drv.h" +#include "mtk_ethdr.h" + +#define MIX_INTEN 0x4 +#define MIX_FME_CPL_INTEN BIT(1) +#define MIX_INTSTA 0x8 +#define MIX_EN 0xc +#define MIX_RST 0x14 +#define MIX_ROI_SIZE 0x18 +#define MIX_DATAPATH_CON 0x1c +#define OUTPUT_NO_RND BIT(3) +#define SOURCE_RGB_SEL BIT(7) +#define BACKGROUND_RELAY (4 << 9) +#define MIX_ROI_BGCLR 0x20 +#define BGCLR_BLACK 0xff000000 +#define MIX_SRC_CON 0x24 +#define MIX_SRC_L0_EN BIT(0) +#define MIX_L_SRC_CON(n) (0x28 + 0x18 * (n)) +#define NON_PREMULTI_SOURCE (2 << 12) +#define MIX_L_SRC_SIZE(n) (0x30 + 0x18 * (n)) +#define MIX_L_SRC_OFFSET(n) (0x34 + 0x18 * (n)) +#define MIX_FUNC_DCM0 0x120 +#define MIX_FUNC_DCM1 0x124 +#define MIX_FUNC_DCM_ENABLE 0xffffffff + +#define HDR_VDO_FE_0804_HDR_DM_FE 0x804 +#define HDR_VDO_FE_0804_BYPASS_ALL 0xfd +#define HDR_GFX_FE_0204_GFX_HDR_FE 0x204 +#define HDR_GFX_FE_0204_BYPASS_ALL 0xfd +#define HDR_VDO_BE_0204_VDO_DM_BE 0x204 +#define HDR_VDO_BE_0204_BYPASS_ALL 0x7e + +#define MIXER_INX_MODE_BYPASS 0 +#define MIXER_INX_MODE_EVEN_EXTEND 1 +#define DEFAULT_9BIT_ALPHA 0x100 +#define MIXER_ALPHA_AEN BIT(8) +#define MIXER_ALPHA 0xff +#define ETHDR_CLK_NUM 13 + +enum mtk_ethdr_comp_id { + ETHDR_MIXER, + ETHDR_VDO_FE0, + ETHDR_VDO_FE1, + ETHDR_GFX_FE0, + ETHDR_GFX_FE1, + ETHDR_VDO_BE, + ETHDR_ADL_DS, + ETHDR_ID_MAX +}; + +struct mtk_ethdr_comp { + struct device *dev; + void __iomem *regs; + struct cmdq_client_reg cmdq_base; +}; + +struct mtk_ethdr { + struct mtk_ethdr_comp ethdr_comp[ETHDR_ID_MAX]; + struct clk_bulk_data ethdr_clk[ETHDR_CLK_NUM]; + struct device *mmsys_dev; + spinlock_t lock; /* protects vblank_cb and vblank_cb_data */ + void (*vblank_cb)(void *data); + void *vblank_cb_data; + int irq; +}; + +static const char * const ethdr_comp_str[] = { + "ETHDR_MIXER", + "ETHDR_VDO_FE0", + "ETHDR_VDO_FE1", + "ETHDR_GFX_FE0", + "ETHDR_GFX_FE1", + "ETHDR_VDO_BE", + "ETHDR_ADL_DS", + "ETHDR_ID_MAX" +}; + +static const char * const ethdr_clk_str[] = { + "ethdr_top", + "mixer", + "vdo_fe0", + "vdo_fe1", + "gfx_fe0", + "gfx_fe1", + "vdo_be", + "adl_ds", + "vdo_fe0_async", + "vdo_fe1_async", + "gfx_fe0_async", + "gfx_fe1_async", + "vdo_be_async", +}; + +void mtk_ethdr_enable_vblank(struct device *dev, + void (*vblank_cb)(void *), + void *vblank_cb_data) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + priv->vblank_cb = vblank_cb; + priv->vblank_cb_data = vblank_cb_data; + spin_unlock_irqrestore(&priv->lock, flags); + + writel(MIX_FME_CPL_INTEN, priv->ethdr_comp[ETHDR_MIXER].regs + MIX_INTEN); +} + +void mtk_ethdr_disable_vblank(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + priv->vblank_cb = NULL; + priv->vblank_cb_data = NULL; + spin_unlock_irqrestore(&priv->lock, flags); + + writel(0x0, priv->ethdr_comp[ETHDR_MIXER].regs + MIX_INTEN); +} + +static irqreturn_t mtk_ethdr_irq_handler(int irq, void *dev_id) +{ + struct mtk_ethdr *priv = dev_id; + unsigned long flags; + + writel(0x0, priv->ethdr_comp[ETHDR_MIXER].regs + MIX_INTSTA); + + spin_lock_irqsave(&priv->lock, flags); + if (!priv->vblank_cb) { + spin_unlock_irqrestore(&priv->lock, flags); + return IRQ_NONE; + } + + priv->vblank_cb(priv->vblank_cb_data); + spin_unlock_irqrestore(&priv->lock, flags); + + return IRQ_HANDLED; +} + +void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, + struct mtk_plane_state *state, + struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; + struct mtk_plane_pending_state *pending = &state->pending; + unsigned int offset = (pending->x & 1) << 31 | pending->y << 16 | pending->x; + unsigned int align_width = ALIGN_DOWN(pending->width, 2); + unsigned int alpha_con = 0; + + dev_dbg(dev, "%s+ idx:%d", __func__, idx); + + if (idx >= 4) + return; + + if (!pending->enable) { + mtk_ddp_write(cmdq_pkt, 0, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_SIZE(idx)); + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_MODE, + idx + 1, MIXER_INX_MODE_BYPASS, cmdq_pkt); + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_BIWIDTH, + idx + 1, 0, cmdq_pkt); + return; + } + + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_MODE, + idx + 1, pending->x & 1 ? MIXER_INX_MODE_EVEN_EXTEND : + MIXER_INX_MODE_BYPASS, cmdq_pkt); + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_BIWIDTH, + idx + 1, align_width / 2 - 1, cmdq_pkt); + + if (state->base.fb && state->base.fb->format->has_alpha) { + alpha_con = MIXER_ALPHA_AEN | MIXER_ALPHA; + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_HDR_ALPHA_SEL, + idx + 1, 0, cmdq_pkt); + } else { + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_HDR_ALPHA_SEL, + idx + 1, 1, cmdq_pkt); + } + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_ALPHA_ODD, idx + 1, + DEFAULT_9BIT_ALPHA, cmdq_pkt); + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_ALPHA_EVEN, idx + 1, + DEFAULT_9BIT_ALPHA, cmdq_pkt); + + mtk_ddp_write(cmdq_pkt, pending->height << 16 | align_width, &mixer->cmdq_base, + mixer->regs, MIX_L_SRC_SIZE(idx)); + mtk_ddp_write(cmdq_pkt, offset, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_OFFSET(idx)); + mtk_ddp_write_mask(cmdq_pkt, alpha_con, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_CON(idx), + 0x1ff); + mtk_ddp_write_mask(cmdq_pkt, BIT(idx), &mixer->cmdq_base, mixer->regs, MIX_SRC_CON, + BIT(idx)); +} + +void mtk_ethdr_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + struct mtk_ethdr_comp *vdo_fe0 = &priv->ethdr_comp[ETHDR_VDO_FE0]; + struct mtk_ethdr_comp *vdo_fe1 = &priv->ethdr_comp[ETHDR_VDO_FE1]; + struct mtk_ethdr_comp *gfx_fe0 = &priv->ethdr_comp[ETHDR_GFX_FE0]; + struct mtk_ethdr_comp *gfx_fe1 = &priv->ethdr_comp[ETHDR_GFX_FE1]; + struct mtk_ethdr_comp *vdo_be = &priv->ethdr_comp[ETHDR_VDO_BE]; + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; + + dev_dbg(dev, "%s-w:%d, h:%d\n", __func__, w, h); + + mtk_ddp_write(cmdq_pkt, HDR_VDO_FE_0804_BYPASS_ALL, &vdo_fe0->cmdq_base, + vdo_fe0->regs, HDR_VDO_FE_0804_HDR_DM_FE); + + mtk_ddp_write(cmdq_pkt, HDR_VDO_FE_0804_BYPASS_ALL, &vdo_fe1->cmdq_base, + vdo_fe1->regs, HDR_VDO_FE_0804_HDR_DM_FE); + + mtk_ddp_write(cmdq_pkt, HDR_GFX_FE_0204_BYPASS_ALL, &gfx_fe0->cmdq_base, + gfx_fe0->regs, HDR_GFX_FE_0204_GFX_HDR_FE); + + mtk_ddp_write(cmdq_pkt, HDR_GFX_FE_0204_BYPASS_ALL, &gfx_fe1->cmdq_base, + gfx_fe1->regs, HDR_GFX_FE_0204_GFX_HDR_FE); + + mtk_ddp_write(cmdq_pkt, HDR_VDO_BE_0204_BYPASS_ALL, &vdo_be->cmdq_base, + vdo_be->regs, HDR_VDO_BE_0204_VDO_DM_BE); + + mtk_ddp_write(cmdq_pkt, MIX_FUNC_DCM_ENABLE, &mixer->cmdq_base, mixer->regs, MIX_FUNC_DCM0); + mtk_ddp_write(cmdq_pkt, MIX_FUNC_DCM_ENABLE, &mixer->cmdq_base, mixer->regs, MIX_FUNC_DCM1); + mtk_ddp_write(cmdq_pkt, h << 16 | w, &mixer->cmdq_base, mixer->regs, MIX_ROI_SIZE); + mtk_ddp_write(cmdq_pkt, BGCLR_BLACK, &mixer->cmdq_base, mixer->regs, MIX_ROI_BGCLR); + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, + MIX_L_SRC_CON(0)); + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, + MIX_L_SRC_CON(1)); + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, + MIX_L_SRC_CON(2)); + mtk_ddp_write(cmdq_pkt, NON_PREMULTI_SOURCE, &mixer->cmdq_base, mixer->regs, + MIX_L_SRC_CON(3)); + mtk_ddp_write(cmdq_pkt, 0x0, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_SIZE(0)); + mtk_ddp_write(cmdq_pkt, OUTPUT_NO_RND | SOURCE_RGB_SEL | BACKGROUND_RELAY, + &mixer->cmdq_base, mixer->regs, MIX_DATAPATH_CON); + mtk_ddp_write_mask(cmdq_pkt, MIX_SRC_L0_EN, &mixer->cmdq_base, mixer->regs, + MIX_SRC_CON, MIX_SRC_L0_EN); + + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_HDR_BE_ASYNC_WIDTH, 0, + w / 2, cmdq_pkt); + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_HDR_BE_ASYNC_HEIGHT, 0, + h, cmdq_pkt); + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_CH_SWAP, 4, 0, cmdq_pkt); +} + +void mtk_ethdr_start(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; + + writel(1, mixer->regs + MIX_EN); +} + +void mtk_ethdr_stop(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + struct mtk_ethdr_comp *mixer = &priv->ethdr_comp[ETHDR_MIXER]; + + writel(0, mixer->regs + MIX_EN); + writel(1, mixer->regs + MIX_RST); + reset_control_reset(devm_reset_control_array_get(dev, true, true)); + writel(0, mixer->regs + MIX_RST); +} + +int mtk_ethdr_clk_enable(struct device *dev) +{ + int ret; + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + ret = clk_bulk_prepare_enable(ETHDR_CLK_NUM, priv->ethdr_clk); + if (ret) + dev_err(dev, + "ethdr_clk prepare enable failed\n"); + return ret; +} + +void mtk_ethdr_clk_disable(struct device *dev) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + clk_bulk_disable_unprepare(ETHDR_CLK_NUM, priv->ethdr_clk); +} + +static int mtk_ethdr_bind(struct device *dev, struct device *master, + void *data) +{ + struct mtk_ethdr *priv = dev_get_drvdata(dev); + + priv->mmsys_dev = data; + return 0; +} + +static void mtk_ethdr_unbind(struct device *dev, struct device *master, void *data) +{ +} + +static const struct component_ops mtk_ethdr_component_ops = { + .bind = mtk_ethdr_bind, + .unbind = mtk_ethdr_unbind, +}; + +static int mtk_ethdr_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mtk_ethdr *priv; + int ret; + int i; + + dev_info(dev, "%s+\n", __func__); + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + for (i = 0; i < ETHDR_ID_MAX; i++) { + priv->ethdr_comp[i].dev = dev; + priv->ethdr_comp[i].regs = of_iomap(dev->of_node, i); +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + ret = cmdq_dev_get_client_reg(dev, + &priv->ethdr_comp[i].cmdq_base, i); + if (ret) + dev_dbg(dev, "get mediatek,gce-client-reg fail!\n"); +#endif + dev_info(dev, "[DRM]regs:0x%x, node:%s\n", + priv->ethdr_comp[i].regs, ethdr_comp_str[i]); + } + + for (i = 0; i < ETHDR_CLK_NUM; i++) + priv->ethdr_clk[i].id = ethdr_clk_str[i]; + ret = devm_clk_bulk_get_optional(dev, ETHDR_CLK_NUM, priv->ethdr_clk); + if (ret) + return ret; + + priv->irq = platform_get_irq(pdev, 0); + if (priv->irq < 0) + priv->irq = 0; + + if (priv->irq) { + ret = devm_request_irq(dev, priv->irq, mtk_ethdr_irq_handler, + IRQF_TRIGGER_NONE, dev_name(dev), priv); + if (ret < 0) { + dev_err(dev, "Failed to request irq %d: %d\n", priv->irq, ret); + return ret; + } + } + + spin_lock_init(&priv->lock); + platform_set_drvdata(pdev, priv); + + ret = component_add(dev, &mtk_ethdr_component_ops); + if (ret) + dev_notice(dev, "Failed to add component: %d\n", ret); + + dev_info(dev, "%s-\n", __func__); + return ret; +} + +static int mtk_ethdr_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &mtk_ethdr_component_ops); + return 0; +} + +static const struct of_device_id mtk_ethdr_driver_dt_match[] = { + { .compatible = "mediatek,mt8195-disp-ethdr"}, + {}, +}; + +MODULE_DEVICE_TABLE(of, mtk_ethdr_driver_dt_match); + +struct platform_driver mtk_ethdr_driver = { + .probe = mtk_ethdr_probe, + .remove = mtk_ethdr_remove, + .driver = { + .name = "mediatek-disp-ethdr", + .owner = THIS_MODULE, + .of_match_table = mtk_ethdr_driver_dt_match, + }, +}; +module_platform_driver(mtk_ethdr_driver); diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.h b/drivers/gpu/drm/mediatek/mtk_ethdr.h new file mode 100644 index 000000000000..84eb9bf2ede0 --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2021 MediaTek Inc. + */ + +#ifndef __MTK_ETHDR_H__ +#define __MTK_ETHDR_H__ + +#include <drm/mediatek_drm.h> + +void mtk_ethdr_start(struct device *dev); +void mtk_ethdr_stop(struct device *dev); +int mtk_ethdr_clk_enable(struct device *dev); +void mtk_ethdr_clk_disable(struct device *dev); +void mtk_ethdr_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt); +void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, + struct mtk_plane_state *state, + struct cmdq_pkt *cmdq_pkt); +void mtk_ethdr_enable_vblank(struct device *dev, void (*vblank_cb)(void *), + void *vblank_cb_data); +void mtk_ethdr_disable_vblank(struct device *dev); +#endif +
ETHDR is a part of ovl_adaptor. ETHDR is designed for HDR video and graphics conversion in the external display path. It handles multiple HDR input types and performs tone mapping, color space/color format conversion, and then combine different layers, output the required HDR or SDR signal to the subsequent display path. Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com> --- drivers/gpu/drm/mediatek/Makefile | 1 + drivers/gpu/drm/mediatek/mtk_ethdr.c | 399 +++++++++++++++++++++++++++ drivers/gpu/drm/mediatek/mtk_ethdr.h | 25 ++ 3 files changed, 425 insertions(+) create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.c create mode 100644 drivers/gpu/drm/mediatek/mtk_ethdr.h