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Mon, 02 Dec 2019 19:06:13 -0800 Received: from mtkmbs08n2.mediatek.inc (172.21.101.56) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 2 Dec 2019 18:56:53 -0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs08n2.mediatek.inc (172.21.101.56) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 3 Dec 2019 10:55:24 +0800 Received: from [172.21.77.4] (172.21.77.4) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 3 Dec 2019 10:56:45 +0800 Message-ID: <1575341763.19788.3.camel@mtksdaap41> Subject: Re: [PATCH v1 5/6] drm/mediatek: support CMDQ interface in ddp component From: CK Hu To: Bibby Hsieh Date: Tue, 3 Dec 2019 10:56:03 +0800 In-Reply-To: <20191128024238.9399-6-bibby.hsieh@mediatek.com> References: <20191128024238.9399-1-bibby.hsieh@mediatek.com> <20191128024238.9399-6-bibby.hsieh@mediatek.com> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: F4B85E6EDEF300A7A86BFC992C143BAD71BEFFB95CAEA01CD399E2B279F860CF2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191202_190618_017802_65CDA48A X-CRM114-Status: GOOD ( 19.07 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: drinkcat@chromium.org, Yongqiang Niu , srv_heupstream@mediatek.com, David Airlie , Daniel Vetter , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, tfiga@chromium.org, YT Shen , Thierry Reding , linux-mediatek@lists.infradead.org, Philipp Zabel , Matthias Brugger , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Bibby: On Thu, 2019-11-28 at 10:42 +0800, Bibby Hsieh wrote: > The CMDQ (Command Queue) in MT8183 is used to help > update all relevant display controller registers > with critical time limation. > This patch add cmdq interface in ddp_comp interface, > let all ddp_comp interface can support cpu/cmdq function > at the same time. > > Signed-off-by: YT Shen > Signed-off-by: CK Hu > Signed-off-by: Philipp Zabel > Signed-off-by: Bibby Hsieh > Signed-off-by: Yongqiang Niu > --- > drivers/gpu/drm/mediatek/mtk_disp_color.c | 7 +- > drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 65 ++++++----- > drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 43 ++++--- > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 11 +- > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 120 ++++++++++++++------ > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 55 ++++++--- > 6 files changed, 190 insertions(+), 111 deletions(-) > [snip] > > static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = { > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > index b26b7a98587b..fcf4e755e0bd 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > @@ -304,7 +304,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc) > if (prev == DDP_COMPONENT_OVL0) > mtk_ddp_comp_bgclr_in_on(comp); > > - mtk_ddp_comp_config(comp, width, height, vrefresh, bpc); > + mtk_ddp_comp_config(comp, width, height, vrefresh, bpc, NULL); > mtk_ddp_comp_start(comp); > } > > @@ -319,7 +319,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc) > comp = mtk_drm_ddp_comp_for_plane(crtc, plane, &local_layer); > if (comp) > mtk_ddp_comp_layer_config(comp, local_layer, > - plane_state); > + plane_state, NULL); > } > > return 0; > @@ -383,7 +383,7 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc) > if (state->pending_config) { > mtk_ddp_comp_config(comp, state->pending_width, > state->pending_height, > - state->pending_vrefresh, 0); > + state->pending_vrefresh, 0, NULL); > > state->pending_config = false; > } > @@ -403,7 +403,7 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc) > > if (comp) > mtk_ddp_comp_layer_config(comp, local_layer, > - plane_state); > + plane_state, NULL); > plane_state->pending.config = false; > } > mtk_crtc->pending_planes = false; > @@ -562,7 +562,8 @@ static void mtk_drm_crtc_atomic_flush(struct drm_crtc *crtc, > mtk_crtc->pending_planes = true; > if (crtc->state->color_mgmt_changed) > for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) > - mtk_ddp_gamma_set(mtk_crtc->ddp_comp[i], crtc->state); > + mtk_ddp_gamma_set(mtk_crtc->ddp_comp[i], > + crtc->state, NULL); If gamm_set is always with NULL packet, I think you need not to change the interface of gamma_set. Regards, CK > > if (priv->data->shadow_register) { > mtk_disp_mutex_acquire(mtk_crtc->mutex); > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > index 3407d38aff8f..6d0f349ddf82 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c > @@ -12,7 +12,8 @@ > #include > #include > #include > - > +#include > +#include > #include "mtk_drm_drv.h" > #include "mtk_drm_plane.h" > #include "mtk_drm_ddp_comp.h" > @@ -76,36 +77,82 @@ > #define DITHER_ADD_LSHIFT_G(x) (((x) & 0x7) << 4) > #define DITHER_ADD_RSHIFT_G(x) (((x) & 0x7) << 0) > > +void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value, > + struct mtk_ddp_comp *comp, unsigned int offset) > +{ > + if (cmdq_pkt) > +#ifdef CONFIG_MTK_CMDQ > + cmdq_pkt_write(cmdq_pkt, comp->subsys, > + comp->regs_pa + offset, value); > +#endif > + else > + writel(value, comp->regs + offset); > +} > + > +void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value, > + struct mtk_ddp_comp *comp, > + unsigned int offset) > +{ > + if (cmdq_pkt) > +#ifdef CONFIG_MTK_CMDQ > + cmdq_pkt_write(cmdq_pkt, comp->subsys, > + comp->regs_pa + offset, value); > +#endif > + else > + writel_relaxed(value, comp->regs + offset); > +} > + > +void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, > + unsigned int value, > + struct mtk_ddp_comp *comp, > + unsigned int offset, > + unsigned int mask) > +{ > + if (cmdq_pkt) { > +#ifdef CONFIG_MTK_CMDQ > + cmdq_pkt_write_mask(cmdq_pkt, comp->subsys, > + comp->regs_pa + offset, value, mask); > +#endif > + } else { > + u32 tmp = readl(comp->regs + offset); > + > + tmp = (tmp & ~mask) | (value & mask); > + writel(tmp, comp->regs + offset); > + } > +} > + > void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc, > - unsigned int CFG) > + unsigned int CFG, struct cmdq_pkt *cmdq_pkt) > { > /* If bpc equal to 0, the dithering function didn't be enabled */ > if (bpc == 0) > return; > > if (bpc >= MTK_MIN_BPC) { > - writel(0, comp->regs + DISP_DITHER_5); > - writel(0, comp->regs + DISP_DITHER_7); > - writel(DITHER_LSB_ERR_SHIFT_R(MTK_MAX_BPC - bpc) | > - DITHER_ADD_LSHIFT_R(MTK_MAX_BPC - bpc) | > - DITHER_NEW_BIT_MODE, > - comp->regs + DISP_DITHER_15); > - writel(DITHER_LSB_ERR_SHIFT_B(MTK_MAX_BPC - bpc) | > - DITHER_ADD_LSHIFT_B(MTK_MAX_BPC - bpc) | > - DITHER_LSB_ERR_SHIFT_G(MTK_MAX_BPC - bpc) | > - DITHER_ADD_LSHIFT_G(MTK_MAX_BPC - bpc), > - comp->regs + DISP_DITHER_16); > - writel(DISP_DITHERING, comp->regs + CFG); > + mtk_ddp_write(cmdq_pkt, 0, comp, DISP_DITHER_5); > + mtk_ddp_write(cmdq_pkt, 0, comp, DISP_DITHER_7); > + mtk_ddp_write(cmdq_pkt, > + DITHER_LSB_ERR_SHIFT_R(MTK_MAX_BPC - bpc) | > + DITHER_ADD_LSHIFT_R(MTK_MAX_BPC - bpc) | > + DITHER_NEW_BIT_MODE, > + comp, DISP_DITHER_15); > + mtk_ddp_write(cmdq_pkt, > + DITHER_LSB_ERR_SHIFT_B(MTK_MAX_BPC - bpc) | > + DITHER_ADD_LSHIFT_B(MTK_MAX_BPC - bpc) | > + DITHER_LSB_ERR_SHIFT_G(MTK_MAX_BPC - bpc) | > + DITHER_ADD_LSHIFT_G(MTK_MAX_BPC - bpc), > + comp, DISP_DITHER_16); > + mtk_ddp_write(cmdq_pkt, DISP_DITHERING, comp, CFG); > } > } > > static void mtk_od_config(struct mtk_ddp_comp *comp, unsigned int w, > unsigned int h, unsigned int vrefresh, > - unsigned int bpc) > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) > { > - writel(w << 16 | h, comp->regs + DISP_OD_SIZE); > - writel(OD_RELAYMODE, comp->regs + DISP_OD_CFG); > - mtk_dither_set(comp, bpc, DISP_OD_CFG); > + mtk_ddp_write(cmdq_pkt, w << 16 | h, comp, DISP_OD_SIZE); > + mtk_ddp_write(cmdq_pkt, OD_RELAYMODE, comp, DISP_OD_CFG); > + mtk_dither_set(comp, bpc, DISP_OD_CFG, cmdq_pkt); > } > > static void mtk_od_start(struct mtk_ddp_comp *comp) > @@ -120,9 +167,9 @@ static void mtk_ufoe_start(struct mtk_ddp_comp *comp) > > static void mtk_aal_config(struct mtk_ddp_comp *comp, unsigned int w, > unsigned int h, unsigned int vrefresh, > - unsigned int bpc) > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) > { > - writel(h << 16 | w, comp->regs + DISP_AAL_SIZE); > + mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_AAL_SIZE); > } > > static void mtk_aal_start(struct mtk_ddp_comp *comp) > @@ -137,10 +184,10 @@ static void mtk_aal_stop(struct mtk_ddp_comp *comp) > > static void mtk_ccorr_config(struct mtk_ddp_comp *comp, unsigned int w, > unsigned int h, unsigned int vrefresh, > - unsigned int bpc) > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) > { > - writel(h << 16 | w, comp->regs + DISP_CCORR_SIZE); > - writel(CCORR_RELAY_MODE, comp->regs + DISP_CCORR_CFG); > + mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_CCORR_SIZE); > + mtk_ddp_write(cmdq_pkt, CCORR_RELAY_MODE, comp, DISP_CCORR_CFG); > } > > static void mtk_ccorr_start(struct mtk_ddp_comp *comp) > @@ -155,10 +202,10 @@ static void mtk_ccorr_stop(struct mtk_ddp_comp *comp) > > static void mtk_dither_config(struct mtk_ddp_comp *comp, unsigned int w, > unsigned int h, unsigned int vrefresh, > - unsigned int bpc) > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) > { > - writel(h << 16 | w, comp->regs + DISP_DITHER_SIZE); > - writel(DITHER_RELAY_MODE, comp->regs + DISP_DITHER_CFG); > + mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_DITHER_SIZE); > + mtk_ddp_write(cmdq_pkt, DITHER_RELAY_MODE, comp, DISP_DITHER_CFG); > } > > static void mtk_dither_start(struct mtk_ddp_comp *comp) > @@ -173,10 +220,10 @@ static void mtk_dither_stop(struct mtk_ddp_comp *comp) > > static void mtk_gamma_config(struct mtk_ddp_comp *comp, unsigned int w, > unsigned int h, unsigned int vrefresh, > - unsigned int bpc) > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) > { > - writel(h << 16 | w, comp->regs + DISP_GAMMA_SIZE); > - mtk_dither_set(comp, bpc, DISP_GAMMA_CFG); > + mtk_ddp_write(cmdq_pkt, h << 16 | w, comp, DISP_GAMMA_SIZE); > + mtk_dither_set(comp, bpc, DISP_GAMMA_CFG, cmdq_pkt); > } > > static void mtk_gamma_start(struct mtk_ddp_comp *comp) > @@ -190,24 +237,23 @@ static void mtk_gamma_stop(struct mtk_ddp_comp *comp) > } > > static void mtk_gamma_set(struct mtk_ddp_comp *comp, > - struct drm_crtc_state *state) > + struct drm_crtc_state *state, > + struct cmdq_pkt *cmdq_pkt) > { > - unsigned int i, reg; > + unsigned int i; > struct drm_color_lut *lut; > - void __iomem *lut_base; > u32 word; > > if (state->gamma_lut) { > - reg = readl(comp->regs + DISP_GAMMA_CFG); > - reg = reg | GAMMA_LUT_EN; > - writel(reg, comp->regs + DISP_GAMMA_CFG); > - lut_base = comp->regs + DISP_GAMMA_LUT; > + mtk_ddp_write_mask(cmdq_pkt, GAMMA_LUT_EN, comp, > + DISP_GAMMA_CFG, GAMMA_LUT_EN); > lut = (struct drm_color_lut *)state->gamma_lut->data; > for (i = 0; i < MTK_LUT_SIZE; i++) { > word = (((lut[i].red >> 6) & LUT_10BIT_MASK) << 20) + > (((lut[i].green >> 6) & LUT_10BIT_MASK) << 10) + > ((lut[i].blue >> 6) & LUT_10BIT_MASK); > - writel(word, (lut_base + i * 4)); > + mtk_ddp_write(cmdq_pkt, word, comp, > + DISP_GAMMA_LUT + i * 4); > } > } > } > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > index ec55c7488cc3..5b0a3d48dfa6 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h > @@ -69,25 +69,30 @@ enum mtk_ddp_comp_id { > }; > > struct mtk_ddp_comp; > - > +struct cmdq_pkt; > struct mtk_ddp_comp_funcs { > void (*config)(struct mtk_ddp_comp *comp, unsigned int w, > - unsigned int h, unsigned int vrefresh, unsigned int bpc); > + unsigned int h, unsigned int vrefresh, > + unsigned int bpc, struct cmdq_pkt *cmdq_pkt); > void (*start)(struct mtk_ddp_comp *comp); > void (*stop)(struct mtk_ddp_comp *comp); > void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc); > void (*disable_vblank)(struct mtk_ddp_comp *comp); > unsigned int (*supported_rotations)(struct mtk_ddp_comp *comp); > unsigned int (*layer_nr)(struct mtk_ddp_comp *comp); > - void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx); > - void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx); > + void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx, > + struct cmdq_pkt *cmdq_pkt); > + void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx, > + struct cmdq_pkt *cmdq_pkt); > int (*layer_check)(struct mtk_ddp_comp *comp, > unsigned int idx, > struct mtk_plane_state *state); > void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx, > - struct mtk_plane_state *state); > + struct mtk_plane_state *state, > + struct cmdq_pkt *cmdq_pkt); > void (*gamma_set)(struct mtk_ddp_comp *comp, > - struct drm_crtc_state *state); > + struct drm_crtc_state *state, > + struct cmdq_pkt *cmdq_pkt); > void (*bgclr_in_on)(struct mtk_ddp_comp *comp); > void (*bgclr_in_off)(struct mtk_ddp_comp *comp); > }; > @@ -99,14 +104,17 @@ struct mtk_ddp_comp { > struct device *dev; > enum mtk_ddp_comp_id id; > const struct mtk_ddp_comp_funcs *funcs; > + resource_size_t regs_pa; > + u8 subsys; > }; > > static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp, > unsigned int w, unsigned int h, > - unsigned int vrefresh, unsigned int bpc) > + unsigned int vrefresh, unsigned int bpc, > + struct cmdq_pkt *cmdq_pkt) > { > if (comp->funcs && comp->funcs->config) > - comp->funcs->config(comp, w, h, vrefresh, bpc); > + comp->funcs->config(comp, w, h, vrefresh, bpc, cmdq_pkt); > } > > static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp) > @@ -152,17 +160,19 @@ static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp) > } > > static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp, > - unsigned int idx) > + unsigned int idx, > + struct cmdq_pkt *cmdq_pkt) > { > if (comp->funcs && comp->funcs->layer_on) > - comp->funcs->layer_on(comp, idx); > + comp->funcs->layer_on(comp, idx, cmdq_pkt); > } > > static inline void mtk_ddp_comp_layer_off(struct mtk_ddp_comp *comp, > - unsigned int idx) > + unsigned int idx, > + struct cmdq_pkt *cmdq_pkt) > { > if (comp->funcs && comp->funcs->layer_off) > - comp->funcs->layer_off(comp, idx); > + comp->funcs->layer_off(comp, idx, cmdq_pkt); > } > > static inline int mtk_ddp_comp_layer_check(struct mtk_ddp_comp *comp, > @@ -176,17 +186,19 @@ static inline int mtk_ddp_comp_layer_check(struct mtk_ddp_comp *comp, > > static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp, > unsigned int idx, > - struct mtk_plane_state *state) > + struct mtk_plane_state *state, > + struct cmdq_pkt *cmdq_pkt) > { > if (comp->funcs && comp->funcs->layer_config) > - comp->funcs->layer_config(comp, idx, state); > + comp->funcs->layer_config(comp, idx, state, cmdq_pkt); > } > > static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp, > - struct drm_crtc_state *state) > + struct drm_crtc_state *state, > + struct cmdq_pkt *cmdq_pkt) > { > if (comp->funcs && comp->funcs->gamma_set) > - comp->funcs->gamma_set(comp, state); > + comp->funcs->gamma_set(comp, state, cmdq_pkt); > } > > static inline void mtk_ddp_comp_bgclr_in_on(struct mtk_ddp_comp *comp) > @@ -209,6 +221,13 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node, > int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp); > void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp); > void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc, > - unsigned int CFG); > - > + unsigned int CFG, struct cmdq_pkt *cmdq_pkt); > +enum mtk_ddp_comp_type mtk_ddp_comp_get_type(enum mtk_ddp_comp_id comp_id); > +void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value, > + struct mtk_ddp_comp *comp, unsigned int offset); > +void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value, > + struct mtk_ddp_comp *comp, unsigned int offset); > +void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value, > + struct mtk_ddp_comp *comp, unsigned int offset, > + unsigned int mask); > #endif /* MTK_DRM_DDP_COMP_H */ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel