Hi, Nancy: Nancy.Lin <nancy.lin@xxxxxxxxxxxx> 於 2021年10月4日 週一 下午2:22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@xxxxxxxxxxxx> > --- > drivers/gpu/drm/mediatek/Makefile | 1 + > drivers/gpu/drm/mediatek/mtk_ethdr.c | 403 +++++++++++++++++++++++++++ > drivers/gpu/drm/mediatek/mtk_ethdr.h | 25 ++ > 3 files changed, 429 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..99e5a95aebed > --- /dev/null > +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c > @@ -0,0 +1,403 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * Copyright (c) 2021 MediaTek Inc. > + */ > + > +#include <drm/drm_fourcc.h> > +#include <linux/clk.h> > +#include <linux/reset.h> > +#include <linux/component.h> > +#include <linux/of_device.h> > +#include <linux/of_address.h> > +#include <linux/platform_device.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) Align the indent with mdp rdma driver. > +#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 MIXER_INX_MODE_BYPASS > +#define MIXER_INx_MODE_EVEN_EXTEND 1 > +#define MIXER_INx_MODE_ODD_EXTEND 2 > +#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 mixer_pad_mode = MIXER_INx_MODE_BYPASS; > + unsigned int alpha_con = 0; > + unsigned int fmt = 0; fmt is useless, so remove. > + > + 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; > + } > + > + if (pending->x % 2) > + mixer_pad_mode = MIXER_INx_MODE_EVEN_EXTEND; > + > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_MODE, > + idx + 1, mixer_pad_mode, cmdq_pkt); Drop mixer_pad_mode, and 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); Regards, Chun-Kuang. > + mtk_mmsys_ddp_config(priv->mmsys_dev, MMSYS_CONFIG_MIXER_IN_BIWIDTH, > + idx + 1, pending->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 | pending->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)); > +} > +