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2019 08:35:55 +0000 From: "james qian wang (Arm Technology China)" To: Mihail Atanassov CC: "Jonathan Chai (Arm Technology China)" , "Julien Yin (Arm Technology China)" , "Thomas Sun (Arm Technology China)" , "Lowry Li (Arm Technology China)" , "Tiannan Zhu (Arm Technology China)" , nd , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , Ben Davis , "Oscar Zhang (Arm Technology China)" , "Channing Chen (Arm Technology China)" , "james qian wang (Arm Technology China)" Subject: [PATCH v5 4/5] drm/komeda: Add side by side support for writeback Thread-Topic: [PATCH v5 4/5] drm/komeda: Add side by side support for writeback Thread-Index: AQHVq0cCwYnEST8nokauTus8cyAHmQ== Date: Thu, 5 Dec 2019 08:35:55 +0000 Message-ID: <20191205083436.11060-5-james.qian.wang@arm.com> References: <20191205083436.11060-1-james.qian.wang@arm.com> In-Reply-To: <20191205083436.11060-1-james.qian.wang@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: 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AM4PR08MB2643 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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) --- .../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_laye= r *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); =20 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/d= rivers/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_la= yer *wb_layer, return komeda_wb_layer_validate(wb_layer, conn_st, dflow); } =20 +/* 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 =3D kcrtc->master; + struct komeda_pipeline *slave =3D 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 >>=3D 1; + m_dflow.out_w >>=3D 1; + m_dflow.input.component =3D &master->compiz->base; + + /* slave writeout the right part */ + s_dflow.in_w >>=3D 1; + s_dflow.out_w >>=3D 1; + s_dflow.in_x +=3D m_dflow.in_w; + s_dflow.out_x +=3D m_dflow.out_w; + s_dflow.input.component =3D &slave->compiz->base; + + err =3D 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/dri= vers/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 *encode= r, struct drm_crtc_state *crtc_st, struct drm_connector_state *conn_st) { + struct komeda_crtc *kcrtc =3D to_kcrtc(crtc_st->crtc); struct komeda_crtc_state *kcrtc_st =3D to_kcrtc_st(crtc_st); struct drm_writeback_job *writeback_job =3D conn_st->writeback_job; struct komeda_layer *wb_layer; @@ -65,7 +66,10 @@ komeda_wb_encoder_atomic_check(struct drm_encoder *encod= er, if (err) return err; =20 - if (dflow.en_split) + if (kcrtc->side_by_side) + err =3D komeda_build_wb_sbs_data_flow(kcrtc, + conn_st, kcrtc_st, &dflow); + else if (dflow.en_split) err =3D komeda_build_wb_split_data_flow(wb_layer, conn_st, kcrtc_st, &dflow); else --=20 2.20.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C744C43603 for ; Thu, 5 Dec 2019 08:36:11 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No 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