From: "james qian wang (Arm Technology China)" <james.qian.wang@arm.com>
To: Liviu Dudau <Liviu.Dudau@arm.com>,
"airlied@linux.ie" <airlied@linux.ie>,
Brian Starkey <Brian.Starkey@arm.com>,
"maarten.lankhorst@linux.intel.com"
<maarten.lankhorst@linux.intel.com>,
Mihail Atanassov <Mihail.Atanassov@arm.com>
Cc: "Jonathan Chai (Arm Technology China)" <Jonathan.Chai@arm.com>,
"Julien Yin (Arm Technology China)" <Julien.Yin@arm.com>,
"Thomas Sun (Arm Technology China)" <thomas.Sun@arm.com>,
"Lowry Li (Arm Technology China)" <Lowry.Li@arm.com>,
"Tiannan Zhu (Arm Technology China)" <Tiannan.Zhu@arm.com>,
nd <nd@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>, Ben Davis <Ben.Davis@arm.com>,
"Oscar Zhang (Arm Technology China)" <Oscar.Zhang@arm.com>,
"Channing Chen (Arm Technology China)" <Channing.Chen@arm.com>,
"james qian wang (Arm Technology China)"
<james.qian.wang@arm.com>
Subject: [PATCH v4 4/6] drm/komeda: Add side by side support for writeback
Date: Thu, 21 Nov 2019 07:12:45 +0000 [thread overview]
Message-ID: <20191121071205.27511-5-james.qian.wang@arm.com> (raw)
In-Reply-To: <20191121071205.27511-1-james.qian.wang@arm.com>
In side by side mode, the master pipeline writeback the left frame and the
slave writeback the right part, the data flow as below:
slave.compiz -> slave.wb_layer -> fb (right-part)
master.compiz -> master.wb_layer -> fb (left-part)
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
---
.../drm/arm/display/komeda/komeda_pipeline.h | 4 ++
.../display/komeda/komeda_pipeline_state.c | 42 +++++++++++++++++++
.../arm/display/komeda/komeda_wb_connector.c | 6 ++-
3 files changed, 51 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
index 59a81b4476df..76621a972803 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
@@ -564,6 +564,10 @@ int komeda_build_wb_split_data_flow(struct komeda_layer *wb_layer,
struct drm_connector_state *conn_st,
struct komeda_crtc_state *kcrtc_st,
struct komeda_data_flow_cfg *dflow);
+int komeda_build_wb_sbs_data_flow(struct komeda_crtc *kcrtc,
+ struct drm_connector_state *conn_st,
+ struct komeda_crtc_state *kcrtc_st,
+ struct komeda_data_flow_cfg *wb_dflow);
int komeda_build_display_data_flow(struct komeda_crtc *kcrtc,
struct komeda_crtc_state *kcrtc_st);
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
index b1e90feb5c55..79f7e7b6526f 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
@@ -1377,6 +1377,48 @@ int komeda_build_wb_split_data_flow(struct komeda_layer *wb_layer,
return komeda_wb_layer_validate(wb_layer, conn_st, dflow);
}
+/* writeback side by side split data path:
+ *
+ * slave.compiz -> slave.wb_layer - > fb (right-part)
+ * master.compiz -> master.wb_layer -> fb (left-part)
+ */
+int komeda_build_wb_sbs_data_flow(struct komeda_crtc *kcrtc,
+ struct drm_connector_state *conn_st,
+ struct komeda_crtc_state *kcrtc_st,
+ struct komeda_data_flow_cfg *wb_dflow)
+{
+ struct komeda_pipeline *master = kcrtc->master;
+ struct komeda_pipeline *slave = kcrtc->slave;
+ struct komeda_data_flow_cfg m_dflow, s_dflow;
+ int err;
+
+ if (wb_dflow->en_scaling || wb_dflow->en_img_enhancement) {
+ DRM_DEBUG_ATOMIC("sbs doesn't support WB_scaling\n");
+ return -EINVAL;
+ }
+
+ memcpy(&m_dflow, wb_dflow, sizeof(*wb_dflow));
+ memcpy(&s_dflow, wb_dflow, sizeof(*wb_dflow));
+
+ /* master writeout the left part */
+ m_dflow.in_w >>= 1;
+ m_dflow.out_w >>= 1;
+ m_dflow.input.component = &master->compiz->base;
+
+ /* slave writeout the right part */
+ s_dflow.in_w >>= 1;
+ s_dflow.out_w >>= 1;
+ s_dflow.in_x += m_dflow.in_w;
+ s_dflow.out_x += m_dflow.out_w;
+ s_dflow.input.component = &slave->compiz->base;
+
+ err = komeda_wb_layer_validate(master->wb_layer, conn_st, &m_dflow);
+ if (err)
+ return err;
+
+ return komeda_wb_layer_validate(slave->wb_layer, conn_st, &s_dflow);
+}
+
/* build display output data flow, the data path is:
* compiz -> improc -> timing_ctrlr
*/
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
index 17ea021488aa..44e628747654 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
@@ -37,6 +37,7 @@ komeda_wb_encoder_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_st,
struct drm_connector_state *conn_st)
{
+ struct komeda_crtc *kcrtc = to_kcrtc(crtc_st->crtc);
struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(crtc_st);
struct drm_writeback_job *writeback_job = conn_st->writeback_job;
struct komeda_layer *wb_layer;
@@ -65,7 +66,10 @@ komeda_wb_encoder_atomic_check(struct drm_encoder *encoder,
if (err)
return err;
- if (dflow.en_split)
+ if (kcrtc->side_by_side)
+ err = komeda_build_wb_sbs_data_flow(kcrtc,
+ conn_st, kcrtc_st, &dflow);
+ else if (dflow.en_split)
err = komeda_build_wb_split_data_flow(wb_layer,
conn_st, kcrtc_st, &dflow);
else
--
2.20.1
next prev parent reply other threads:[~2019-11-21 7:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-21 7:12 [PATCH v4 0/6] arm/komeda: Add side_by_side support james qian wang (Arm Technology China)
2019-11-21 7:12 ` [PATCH v4 1/6] drm/komeda: Add side by side assembling james qian wang (Arm Technology China)
2019-11-21 7:12 ` [PATCH v4 2/6] drm/komeda: Add side by side plane_state split james qian wang (Arm Technology China)
2019-11-21 7:12 ` [PATCH v4 3/6] drm/komeda: Build side by side display output pipeline james qian wang (Arm Technology China)
2019-11-21 7:12 ` james qian wang (Arm Technology China) [this message]
2019-11-21 7:12 ` [PATCH v4 5/6] drm/komeda: Update writeback signal for side_by_side james qian wang (Arm Technology China)
2019-11-21 7:12 ` [PATCH v4 6/6] drm/komeda: Expose side_by_side by sysfs/config_id james qian wang (Arm Technology China)
2019-11-21 9:49 ` Daniel Vetter
2019-11-21 10:21 ` james qian wang (Arm Technology China)
2019-11-21 19:16 ` Dave Airlie
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