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Wed, 18 Jun 2025 07:33:38 -0700 (PDT) From: Krzysztof Kozlowski Date: Wed, 18 Jun 2025 16:32:40 +0200 Subject: [PATCH v7 11/13] drm/msm/dpu: Implement CTL_PIPE_ACTIVE for v12.0 DPU Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250618-b4-sm8750-display-v7-11-a591c609743d@linaro.org> References: <20250618-b4-sm8750-display-v7-0-a591c609743d@linaro.org> In-Reply-To: <20250618-b4-sm8750-display-v7-0-a591c609743d@linaro.org> To: Abhinav Kumar , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krishna Manikandan , Jonathan Marek , Kuogee Hsieh , Neil Armstrong , Dmitry Baryshkov , Bjorn Andersson , Michael Turquette , Stephen Boyd , Rob Clark Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , linux-clk@vger.kernel.org, Abel Vesa , Srinivas Kandagatla , Rob Clark , Dmitry Baryshkov X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B v12.0 DPU on SM8750 comes with new CTL_PIPE_ACTIVE register for selective activation of pipes, which replaces earlier dpu_hw_ctl_setup_blendstage() code path for newer devices. Reviewed-by: Dmitry Baryshkov Signed-off-by: Krzysztof Kozlowski --- Changes in v4: 1. Lowercase hex 2. Add Dmitry's tag Changes in v3: 1. New patch, split from previous big DPU v12.0. --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 9 +++++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 3 +++ drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 29 +++++++++++++++++++++++++= ++-- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h | 8 ++++++++ 4 files changed, 47 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm= /disp/dpu1/dpu_crtc.c index 5e986640c8ce5b49d0ce2f91cc47f677a2e3f061..50897de0ab55c2d8dc2e6547b9f= 3a033a3ca9b45 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -453,8 +453,10 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crt= c *crtc, u32 lm_idx; bool bg_alpha_enable =3D false; DECLARE_BITMAP(active_fetch, SSPP_MAX); + DECLARE_BITMAP(active_pipes, SSPP_MAX); =20 memset(active_fetch, 0, sizeof(active_fetch)); + memset(active_pipes, 0, sizeof(active_pipes)); drm_atomic_crtc_for_each_plane(plane, crtc) { state =3D plane->state; if (!state) @@ -472,6 +474,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc= *crtc, bg_alpha_enable =3D true; =20 set_bit(pstate->pipe.sspp->idx, active_fetch); + set_bit(pstate->pipe.sspp->idx, active_pipes); _dpu_crtc_blend_setup_pipe(crtc, plane, mixer, cstate->num_mixers, pstate->stage, @@ -480,6 +483,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc= *crtc, =20 if (pstate->r_pipe.sspp) { set_bit(pstate->r_pipe.sspp->idx, active_fetch); + set_bit(pstate->r_pipe.sspp->idx, active_pipes); _dpu_crtc_blend_setup_pipe(crtc, plane, mixer, cstate->num_mixers, pstate->stage, @@ -503,6 +507,9 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc= *crtc, if (ctl->ops.set_active_fetch_pipes) ctl->ops.set_active_fetch_pipes(ctl, active_fetch); =20 + if (ctl->ops.set_active_pipes) + ctl->ops.set_active_pipes(ctl, active_pipes); + _dpu_crtc_program_lm_output_roi(crtc); } =20 @@ -529,6 +536,8 @@ static void _dpu_crtc_blend_setup(struct drm_crtc *crtc) mixer[i].lm_ctl); if (mixer[i].lm_ctl->ops.set_active_fetch_pipes) mixer[i].lm_ctl->ops.set_active_fetch_pipes(mixer[i].lm_ctl, NULL); + if (mixer[i].lm_ctl->ops.set_active_pipes) + mixer[i].lm_ctl->ops.set_active_pipes(mixer[i].lm_ctl, NULL); } =20 /* initialize stage cfg */ diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/= msm/disp/dpu1/dpu_encoder.c index c0ed110a7d30fa1282676e3ae4c9f1316a3a3bf1..a52d5a74759ed9b1b12a0f00ee2= 417d9ee37fef9 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -2197,6 +2197,9 @@ static void dpu_encoder_helper_reset_mixers(struct dp= u_encoder_phys *phys_enc) =20 if (ctl->ops.set_active_fetch_pipes) ctl->ops.set_active_fetch_pipes(ctl, NULL); + + if (ctl->ops.set_active_pipes) + ctl->ops.set_active_pipes(ctl, NULL); } } =20 diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/m= sm/disp/dpu1/dpu_hw_ctl.c index fe4fdfb8774b176fb024d76dc0bd269d9736d226..4299e94351d5e5371a86608f5ec= 1246f0cbe4290 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c @@ -42,6 +42,7 @@ #define CTL_INTF_FLUSH 0x110 #define CTL_CDM_FLUSH 0x114 #define CTL_PERIPH_FLUSH 0x128 +#define CTL_PIPE_ACTIVE 0x12c #define CTL_INTF_MASTER 0x134 #define CTL_DSPP_n_FLUSH(n) ((0x13C) + ((n) * 4)) =20 @@ -681,6 +682,9 @@ static void dpu_hw_ctl_reset_intf_cfg_v1(struct dpu_hw_= ctl *ctx, if (ctx->ops.set_active_fetch_pipes) ctx->ops.set_active_fetch_pipes(ctx, NULL); =20 + if (ctx->ops.set_active_pipes) + ctx->ops.set_active_pipes(ctx, NULL); + if (cfg->intf) { intf_active =3D DPU_REG_READ(c, CTL_INTF_ACTIVE); intf_active &=3D ~BIT(cfg->intf - INTF_0); @@ -737,6 +741,23 @@ static void dpu_hw_ctl_set_active_fetch_pipes(struct d= pu_hw_ctl *ctx, DPU_REG_WRITE(&ctx->hw, CTL_FETCH_PIPE_ACTIVE, val); } =20 +static void dpu_hw_ctl_set_active_pipes(struct dpu_hw_ctl *ctx, + unsigned long *active_pipes) +{ + int i; + u32 val =3D 0; + + if (active_pipes) { + for (i =3D 0; i < SSPP_MAX; i++) { + if (test_bit(i, active_pipes) && + fetch_tbl[i] !=3D CTL_INVALID_BIT) + val |=3D BIT(fetch_tbl[i]); + } + } + + DPU_REG_WRITE(&ctx->hw, CTL_PIPE_ACTIVE, val); +} + /** * dpu_hw_ctl_init() - Initializes the ctl_path hw driver object. * Should be called before accessing any ctl_path register. @@ -800,8 +821,12 @@ struct dpu_hw_ctl *dpu_hw_ctl_init(struct drm_device *= dev, c->ops.trigger_pending =3D dpu_hw_ctl_trigger_pending; c->ops.reset =3D dpu_hw_ctl_reset_control; c->ops.wait_reset_status =3D dpu_hw_ctl_wait_reset_status; - c->ops.clear_all_blendstages =3D dpu_hw_ctl_clear_all_blendstages; - c->ops.setup_blendstage =3D dpu_hw_ctl_setup_blendstage; + if (mdss_ver->core_major_ver < 12) { + c->ops.clear_all_blendstages =3D dpu_hw_ctl_clear_all_blendstages; + c->ops.setup_blendstage =3D dpu_hw_ctl_setup_blendstage; + } else { + c->ops.set_active_pipes =3D dpu_hw_ctl_set_active_pipes; + } c->ops.update_pending_flush_sspp =3D dpu_hw_ctl_update_pending_flush_sspp; c->ops.update_pending_flush_mixer =3D dpu_hw_ctl_update_pending_flush_mix= er; if (mdss_ver->core_major_ver >=3D 7) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h b/drivers/gpu/drm/m= sm/disp/dpu1/dpu_hw_ctl.h index 9cd9959682c21cc1c6d8d14b8fb377deb33cc10d..ca8f34ff3964c1adaaacdd3f0a6= 0572da53870e1 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h @@ -258,6 +258,14 @@ struct dpu_hw_ctl_ops { =20 void (*set_active_fetch_pipes)(struct dpu_hw_ctl *ctx, unsigned long *fetch_active); + + /** + * Set active pipes attached to this CTL + * @ctx: ctl path ctx pointer + * @active_pipes: bitmap of enum dpu_sspp + */ + void (*set_active_pipes)(struct dpu_hw_ctl *ctx, + unsigned long *active_pipes); }; =20 /** --=20 2.45.2