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Message-Id: <20240829-sm8650-v6-11-hmd-pocf-mdss-quad-upstream-8-v1-18-bdb05b4b5a2e@linaro.org>
Date: Thu, 29 Aug 2024 18:17:47 +0800
From: Jun Nie <jun.nie@...aro.org>
To: Rob Clark <robdclark@...il.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Sean Paul <sean@...rly.run>,
Marijn Suijten <marijn.suijten@...ainline.org>,
David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
Jun Nie <jun.nie@...aro.org>
Subject: [PATCH 18/21] drm/msm/dpu: blend pipes by left and right
Blend pipes by left and right. The first 2 pipes are for
left half screen and the later 2 pipes are for right in quad
pipe case.
Signed-off-by: Jun Nie <jun.nie@...aro.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 13 +++++++++++--
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 10 +++++++---
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 19 +++++++++++++++++--
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h | 4 +++-
4 files changed, 38 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 3b3cd17976082..8fd56f8f2851f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -574,8 +574,17 @@ static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
mixer[i].mixer_op_mode,
ctl->idx - CTL_0);
- ctl->ops.setup_blendstage(ctl, mixer[i].hw_lm->idx,
- &stage_cfg);
+ /*
+ * call dpu_hw_ctl_setup_blendstage() to blend layers per stage cfg.
+ * There is 4 mixers at most. The first 2 are for the left half, and
+ * the later 2 are for the right half.
+ */
+ if (cstate->num_mixers == 4 && i >= 2)
+ ctl->ops.setup_blendstage(ctl, mixer[i].hw_lm->idx,
+ &stage_cfg, true);
+ else
+ ctl->ops.setup_blendstage(ctl, mixer[i].hw_lm->idx,
+ &stage_cfg, false);
}
}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 76793201b984e..5d927f23e35b2 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2049,9 +2049,13 @@ static void dpu_encoder_helper_reset_mixers(struct dpu_encoder_phys *phys_enc)
if (phys_enc->hw_ctl->ops.update_pending_flush_mixer)
phys_enc->hw_ctl->ops.update_pending_flush_mixer(ctl, hw_mixer[i]->idx);
- /* clear all blendstages */
- if (phys_enc->hw_ctl->ops.setup_blendstage)
- phys_enc->hw_ctl->ops.setup_blendstage(ctl, hw_mixer[i]->idx, NULL);
+ /* clear all blendstages in both left and right */
+ if (phys_enc->hw_ctl->ops.setup_blendstage) {
+ phys_enc->hw_ctl->ops.setup_blendstage(ctl,
+ hw_mixer[i]->idx, NULL, false);
+ phys_enc->hw_ctl->ops.setup_blendstage(ctl,
+ hw_mixer[i]->idx, NULL, true);
+ }
}
}
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 602dfad127c2a..2072d18520326 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -478,12 +478,13 @@ static const struct ctl_blend_config ctl_blend_config[][2] = {
};
static void dpu_hw_ctl_setup_blendstage(struct dpu_hw_ctl *ctx,
- enum dpu_lm lm, struct dpu_hw_stage_cfg *stage_cfg)
+ enum dpu_lm lm, struct dpu_hw_stage_cfg *stage_cfg, bool right)
{
struct dpu_hw_blk_reg_map *c = &ctx->hw;
u32 mix, ext, mix_ext;
u32 mixercfg[5] = { 0 };
int i, j;
+ int pipe_start, pipe_end;
int stages;
int pipes_per_stage;
@@ -502,13 +503,27 @@ static void dpu_hw_ctl_setup_blendstage(struct dpu_hw_ctl *ctx,
if (!stage_cfg)
goto exit;
+ /*
+ * For quad pipe case, blend pipes in right side separately. Otherwise,
+ * all content is on the left half by defaut (no splitting case).
+ */
+ if (!right) {
+ pipe_start = 0;
+ pipe_end = pipes_per_stage == PIPES_PER_STAGE ? 2 : 1;
+ } else {
+ pipe_start = 2;
+ pipe_end = PIPES_PER_STAGE;
+ }
+
+ DRM_DEBUG_ATOMIC("blend lm %d on the %s side\n", lm - LM_0,
+ right ? "right" : "left");
for (i = 0; i <= stages; i++) {
/* overflow to ext register if 'i + 1 > 7' */
mix = (i + 1) & 0x7;
ext = i >= 7;
mix_ext = (i + 1) & 0xf;
- for (j = 0 ; j < pipes_per_stage; j++) {
+ for (j = pipe_start; j < pipe_end; j++) {
enum dpu_sspp_multirect_index rect_index =
stage_cfg->multirect_index[i][j];
enum dpu_sspp pipe = stage_cfg->stage[i][j];
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 557ec9a924f81..2dac7885fc5e7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
@@ -25,6 +25,8 @@ struct dpu_hw_ctl;
/**
* struct dpu_hw_stage_cfg - blending stage cfg
* @stage : SSPP_ID at each stage
+ * The first 2 in PIPES_PER_STAGE(4) are for the first SSPP.
+ * The 3rd/4th in PIPES_PER_STAGE(4) are for the 2nd SSPP.
* @multirect_index: index of the rectangle of SSPP.
*/
struct dpu_hw_stage_cfg {
@@ -243,7 +245,7 @@ struct dpu_hw_ctl_ops {
* @cfg : blend stage configuration
*/
void (*setup_blendstage)(struct dpu_hw_ctl *ctx,
- enum dpu_lm lm, struct dpu_hw_stage_cfg *cfg);
+ enum dpu_lm lm, struct dpu_hw_stage_cfg *cfg, bool right);
void (*set_active_pipes)(struct dpu_hw_ctl *ctx,
unsigned long *fetch_active);
--
2.34.1
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