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Message-Id: <20250311-b4-sm8750-display-v4-17-da6b3e959c76@linaro.org>
Date: Tue, 11 Mar 2025 20:02:07 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>,
Marijn Suijten <marijn.suijten@...ainline.org>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Krishna Manikandan <quic_mkrishn@...cinc.com>,
Jonathan Marek <jonathan@...ek.ca>, Kuogee Hsieh <quic_khsieh@...cinc.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
Dmitry Baryshkov <lumag@...nel.org>, Rob Clark <robdclark@...il.com>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Srini Kandagatla <srinivas.kandagatla@...aro.org>,
Rob Clark <robdclark@...omium.org>, Dmitry Baryshkov <lumag@...nel.org>
Subject: [PATCH v4 17/19] drm/msm/dpu: Implement CTL_PIPE_ACTIVE for v12.0
DPU
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 <dmitry.baryshkov@...aro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
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 90f47fc15ee5708795701d78a1380f4ab01c1427..3135e5ab9e8121f3dbd93dde9458f007ae45392a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -452,8 +452,10 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
uint32_t lm_idx;
bool bg_alpha_enable = false;
DECLARE_BITMAP(active_fetch, SSPP_MAX);
+ DECLARE_BITMAP(active_pipes, SSPP_MAX);
memset(active_fetch, 0, sizeof(active_fetch));
+ memset(active_pipes, 0, sizeof(active_pipes));
drm_atomic_crtc_for_each_plane(plane, crtc) {
state = plane->state;
if (!state)
@@ -471,6 +473,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
bg_alpha_enable = true;
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,
@@ -479,6 +482,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
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,
@@ -502,6 +506,9 @@ 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);
+ if (ctl->ops.set_active_pipes)
+ ctl->ops.set_active_pipes(ctl, active_pipes);
+
_dpu_crtc_program_lm_output_roi(crtc);
}
@@ -528,6 +535,8 @@ 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);
}
/* 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 ccf492f27140a2841b454d413e885e4bbd9ee497..aec71a86f809afedc2660d66d2cbf4109c302067 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2191,6 +2191,9 @@ static void dpu_encoder_helper_reset_mixers(struct dpu_encoder_phys *phys_enc)
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);
}
}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
index 3e5e1e09e9d00ade74371489b2b4e50e648e2d16..c9c65d5e9d36d3a4ce2aef9f57da631f2acd9123 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))
@@ -676,6 +677,9 @@ 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);
+ if (ctx->ops.set_active_pipes)
+ ctx->ops.set_active_pipes(ctx, NULL);
+
if (cfg->intf) {
intf_active = DPU_REG_READ(c, CTL_INTF_ACTIVE);
intf_active &= ~BIT(cfg->intf - INTF_0);
@@ -724,6 +728,23 @@ static void dpu_hw_ctl_set_active_fetch_pipes(struct dpu_hw_ctl *ctx,
DPU_REG_WRITE(&ctx->hw, CTL_FETCH_PIPE_ACTIVE, val);
}
+static void dpu_hw_ctl_set_active_pipes(struct dpu_hw_ctl *ctx,
+ unsigned long *active_pipes)
+{
+ int i;
+ u32 val = 0;
+
+ if (active_pipes) {
+ for (i = 0; i < SSPP_MAX; i++) {
+ if (test_bit(i, active_pipes) &&
+ fetch_tbl[i] != CTL_INVALID_BIT)
+ val |= 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.
@@ -786,8 +807,12 @@ struct dpu_hw_ctl *dpu_hw_ctl_init(struct drm_device *dev,
c->ops.trigger_pending = dpu_hw_ctl_trigger_pending;
c->ops.reset = dpu_hw_ctl_reset_control;
c->ops.wait_reset_status = dpu_hw_ctl_wait_reset_status;
- c->ops.clear_all_blendstages = dpu_hw_ctl_clear_all_blendstages;
- c->ops.setup_blendstage = dpu_hw_ctl_setup_blendstage;
+ if (mdss_ver->core_major_ver < 12) {
+ c->ops.clear_all_blendstages = dpu_hw_ctl_clear_all_blendstages;
+ c->ops.setup_blendstage = dpu_hw_ctl_setup_blendstage;
+ } else {
+ c->ops.set_active_pipes = dpu_hw_ctl_set_active_pipes;
+ }
c->ops.update_pending_flush_sspp = dpu_hw_ctl_update_pending_flush_sspp;
c->ops.update_pending_flush_mixer = dpu_hw_ctl_update_pending_flush_mixer;
if (mdss_ver->core_major_ver >= 7)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
index 1b40d8cc92865e31e5ac4a8c3ee8fac8c5499bbd..186c467e1a64e71116b65b19dd8ecdbb09dac114 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
@@ -256,6 +256,14 @@ struct dpu_hw_ctl_ops {
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);
};
/**
--
2.43.0
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