From patchwork Fri Feb 4 21:17:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abhinav Kumar X-Patchwork-Id: 12735710 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 828F1C433F5 for ; Fri, 4 Feb 2022 21:19:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244807AbiBDVS5 (ORCPT ); Fri, 4 Feb 2022 16:18:57 -0500 Received: from alexa-out.qualcomm.com ([129.46.98.28]:10055 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348880AbiBDVSB (ORCPT ); Fri, 4 Feb 2022 16:18:01 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1644009481; x=1675545481; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=mdXVrRClczTlrvvUfxixMENAybwz0givakdQipRAfjA=; b=MUnkqv9fEtUnyTT7cLxuwVqo6q1bkcRe3+yIEAN0xJ0e7ABe1GR91flN p6uYJ1SWQXOHOzEJWcYb5kKVnGuS6eWY/5CwO0cxmSK7Z2D81ahd7M8l9 ciMbgOR4AQ0LBLjzHArf4E/IsnYJoeWpUM/LbA2ydqOE3OXIBXrxIwVp7 c=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 04 Feb 2022 13:18:01 -0800 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; 04 Feb 2022 13:18:01 -0800 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 15.2.922.19; Fri, 4 Feb 2022 13:18:00 -0800 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 15.2.922.19; Fri, 4 Feb 2022 13:18:00 -0800 From: Abhinav Kumar To: CC: Abhinav Kumar , , , , , , , , , , , Subject: [PATCH 09/12] drm/msm/dpu: add the writeback connector layer Date: Fri, 4 Feb 2022 13:17:22 -0800 Message-ID: <1644009445-17320-10-git-send-email-quic_abhinavk@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1644009445-17320-1-git-send-email-quic_abhinavk@quicinc.com> References: <1644009445-17320-1-git-send-email-quic_abhinavk@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org 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. Signed-off-by: Abhinav Kumar --- drivers/gpu/drm/msm/Makefile | 1 + drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c | 71 +++++++++++++++++++++++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.h | 27 ++++++++++ 3 files changed, 99 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 3abaf84..05a8515 100644 --- a/drivers/gpu/drm/msm/Makefile +++ b/drivers/gpu/drm/msm/Makefile @@ -74,6 +74,7 @@ msm-y := \ disp/dpu1/dpu_plane.o \ disp/dpu1/dpu_rm.o \ disp/dpu1/dpu_vbif.o \ + disp/dpu1/dpu_writeback.o \ disp/msm_disp_snapshot.o \ disp/msm_disp_snapshot_util.o \ msm_atomic.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..7b61fad --- /dev/null +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c @@ -0,0 +1,71 @@ +// 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 struct drm_encoder_helper_funcs *enc_helper_funcs, const u32 *format_list, + u32 num_formats) +{ + struct msm_drm_private *priv = dev->dev_private; + struct dpu_wb_connector *dpu_wb_conn; + int rc = 0; + + dpu_wb_conn = devm_kzalloc(dev->dev, sizeof(*dpu_wb_conn), GFP_KERNEL); + dpu_wb_conn->base.base = &dpu_wb_conn->connector; + dpu_wb_conn->base.encoder = enc; + + drm_connector_helper_add(dpu_wb_conn->base.base, &dpu_wb_conn_helper_funcs); + + rc = drm_writeback_connector_init(dev, &dpu_wb_conn->base, + &dpu_wb_conn_funcs, enc_helper_funcs, + format_list, num_formats); + + priv->connectors[priv->num_connectors++] = dpu_wb_conn->base.base; + + 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..206ce5e --- /dev/null +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.h @@ -0,0 +1,27 @@ +/* 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_connector connector; + struct drm_writeback_connector base; +}; + +int dpu_writeback_init(struct drm_device *dev, struct drm_encoder *enc, + const struct drm_encoder_helper_funcs *enc_helper_funcs, + const u32 *format_list, u32 num_formats); + +#endif /*_DPU_WRITEBACK_H */