From patchwork Wed Apr 20 23:49:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abhinav Kumar X-Patchwork-Id: 12820929 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 65F85C433F5 for ; Wed, 20 Apr 2022 23:50:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 82C3B10F2C8; Wed, 20 Apr 2022 23:50:30 +0000 (UTC) Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id 68D2310F2C3; Wed, 20 Apr 2022 23:50:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1650498624; x=1682034624; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=Lp6352XFHPnAv8EpuYTsHZhTBTQz1scCMjo3gM25OlM=; b=m9J3gJWVjM5eNftEeyNh2MIjH/2b0GnvIwHSTBwHcB92yM3DogEpFND/ Gm0DDpqgG/w3rV7V5ZBeTbicnmASfBChbLScE493HzKblDTpqCtCyvAYT W3mWn/dK/7XFHU5Ugz2itx+YGIcfRX1ZIIxu29bnimsWWs/ZoUYmKgYsV 0=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 20 Apr 2022 16:50:22 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Apr 2022 16:50:22 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Wed, 20 Apr 2022 16:50:10 -0700 Received: from abhinavk-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Wed, 20 Apr 2022 16:50:10 -0700 From: Abhinav Kumar To: Subject: [PATCH v3 15/18] drm/msm/dpu: add the writeback connector layer Date: Wed, 20 Apr 2022 16:49:44 -0700 Message-ID: <1650498587-14749-16-git-send-email-quic_abhinavk@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1650498587-14749-1-git-send-email-quic_abhinavk@quicinc.com> References: <1650498587-14749-1-git-send-email-quic_abhinavk@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: markyacoub@chromium.org, liviu.dudau@arm.com, Abhinav Kumar , dri-devel@lists.freedesktop.org, swboyd@chromium.org, seanpaul@chromium.org, laurent.pinchart@ideasonboard.com, dmitry.baryshkov@linaro.org, quic_jesszhan@quicinc.com, quic_aravindh@quicinc.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Introduce the dpu_writeback module which serves as the interface between dpu operations and the drm_writeback. This module manages the connector related operations for dpu writeback. changes in v2: - start using drm_writeback_connector_init_with_encoder() - drop unnecessary arguments from dpu_writeback_init() - rebase on msm-next tip and remove usage of priv->connectors Signed-off-by: Abhinav Kumar Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/Makefile | 1 + drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c | 68 +++++++++++++++++++++++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.h | 25 ++++++++++ 3 files changed, 94 insertions(+) create mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c create mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.h diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile index 0387f22..66395ee 100644 --- a/drivers/gpu/drm/msm/Makefile +++ b/drivers/gpu/drm/msm/Makefile @@ -80,6 +80,7 @@ msm-$(CONFIG_DRM_MSM_DPU) += \ disp/dpu1/dpu_plane.o \ disp/dpu1/dpu_rm.o \ disp/dpu1/dpu_vbif.o \ + disp/dpu1/dpu_writeback.o msm-$(CONFIG_DRM_MSM_MDSS) += \ msm_mdss.o \ diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c new file mode 100644 index 0000000..526d884 --- /dev/null +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include "dpu_writeback.h" + +static int dpu_wb_conn_get_modes(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + + return drm_add_modes_noedid(connector, dev->mode_config.max_width, + dev->mode_config.max_height); +} + +static const struct drm_connector_funcs dpu_wb_conn_funcs = { + .reset = drm_atomic_helper_connector_reset, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = drm_connector_cleanup, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static int dpu_wb_conn_prepare_job(struct drm_writeback_connector *connector, + struct drm_writeback_job *job) +{ + if (!job->fb) + return 0; + + dpu_encoder_prepare_wb_job(connector->encoder, job); + + return 0; +} + +static void dpu_wb_conn_cleanup_job(struct drm_writeback_connector *connector, + struct drm_writeback_job *job) +{ + if (!job->fb) + return; + + dpu_encoder_cleanup_wb_job(connector->encoder, job); +} + +static const struct drm_connector_helper_funcs dpu_wb_conn_helper_funcs = { + .get_modes = dpu_wb_conn_get_modes, + .prepare_writeback_job = dpu_wb_conn_prepare_job, + .cleanup_writeback_job = dpu_wb_conn_cleanup_job, +}; + +int dpu_writeback_init(struct drm_device *dev, struct drm_encoder *enc, + const u32 *format_list, u32 num_formats) +{ + struct dpu_wb_connector *dpu_wb_conn; + int rc = 0; + + dpu_wb_conn = devm_kzalloc(dev->dev, sizeof(*dpu_wb_conn), GFP_KERNEL); + + drm_connector_helper_add(&dpu_wb_conn->base.base, &dpu_wb_conn_helper_funcs); + + /* DPU initializes the encoder and sets it up completely for writeback + * cases and hence should use the new API drm_writeback_connector_init_with_encoder + * to initialize the writeback connector + */ + rc = drm_writeback_connector_init_with_encoder(dev, &dpu_wb_conn->base, enc, + &dpu_wb_conn_funcs, format_list, num_formats); + + return rc; +} diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.h new file mode 100644 index 0000000..05aff05 --- /dev/null +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef _DPU_WRITEBACK_H +#define _DPU_WRITEBACK_H + +#include +#include +#include +#include + +#include "msm_drv.h" +#include "dpu_kms.h" +#include "dpu_encoder_phys.h" + +struct dpu_wb_connector { + struct drm_writeback_connector base; +}; + +int dpu_writeback_init(struct drm_device *dev, struct drm_encoder *enc, + const u32 *format_list, u32 num_formats); + +#endif /*_DPU_WRITEBACK_H */