From patchwork Mon Feb 6 12:07:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 13129736 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 1EF0CC6379F for ; Mon, 6 Feb 2023 12:07:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230058AbjBFMHV (ORCPT ); Mon, 6 Feb 2023 07:07:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42258 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230062AbjBFMHU (ORCPT ); Mon, 6 Feb 2023 07:07:20 -0500 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C10716305; Mon, 6 Feb 2023 04:07:16 -0800 (PST) X-UUID: c9f0777ca61611eda06fc9ecc4dadd91-20230206 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=heFHDd36B0PglukZgIjQpahWcZCaWyvg0AAhMkQw2sw=; b=IaUNThryvnO/b9R886wQ7oMGXFGe0ef87IUqnby4ypLnKK1bC+1wcpII6hvpjUS2LvPUldKiWgsugpxZyTDh4YSKXC+72APN0oVbQT9M/P9TkHjQ+DCmLDSMH8FgblwolOwwK/zHezFPoB4tA/x1NL9uV73Bi4U1Vwh+2T+K6S8=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.19,REQID:f3dbb856-7202-4c2f-970e-421af1b8d748,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:70 X-CID-INFO: VERSION:1.1.19,REQID:f3dbb856-7202-4c2f-970e-421af1b8d748,IP:0,URL :0,TC:0,Content:-25,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTI ON:quarantine,TS:70 X-CID-META: VersionHash:885ddb2,CLOUDID:53170e8e-8530-4eff-9f77-222cf6e2895b,B ulkID:230206200713MFARSKUV,BulkQuantity:0,Recheck:0,SF:38|29|28|17|19|48,T C:nil,Content:0,EDM:-3,IP:nil,URL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,CO L:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0 X-UUID: c9f0777ca61611eda06fc9ecc4dadd91-20230206 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1603333141; Mon, 06 Feb 2023 20:07:12 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Mon, 6 Feb 2023 20:07:10 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Mon, 6 Feb 2023 20:07:10 +0800 From: Yunfei Dong To: Yunfei Dong , Chen-Yu Tsai , Nicolas Dufresne , Hans Verkuil , AngeloGioacchino Del Regno , Benjamin Gaignard , Tiffany Lin CC: Mauro Carvalho Chehab , Matthias Brugger , Hsin-Yi Wang , Fritz Koenig , Daniel Vetter , Steve Cho , , , , , , Subject: [PATCH 1/6] media: mediatek: vcodec: Add debugfs interface to get debug information Date: Mon, 6 Feb 2023 20:07:03 +0800 Message-ID: <20230206120708.19631-2-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230206120708.19631-1-yunfei.dong@mediatek.com> References: <20230206120708.19631-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This will be useful when debugging specific issues related to kernel in running status. Signed-off-by: Yunfei Dong --- .../media/platform/mediatek/vcodec/Makefile | 6 ++++ .../mediatek/vcodec/mtk_vcodec_dbgfs.c | 32 +++++++++++++++++++ .../mediatek/vcodec/mtk_vcodec_dbgfs.h | 28 ++++++++++++++++ .../mediatek/vcodec/mtk_vcodec_dec_drv.c | 2 ++ .../platform/mediatek/vcodec/mtk_vcodec_drv.h | 4 +++ 5 files changed, 72 insertions(+) create mode 100644 drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c create mode 100644 drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h diff --git a/drivers/media/platform/mediatek/vcodec/Makefile b/drivers/media/platform/mediatek/vcodec/Makefile index 93e7a343b5b0..f6b750cf7077 100644 --- a/drivers/media/platform/mediatek/vcodec/Makefile +++ b/drivers/media/platform/mediatek/vcodec/Makefile @@ -44,3 +44,9 @@ endif ifneq ($(CONFIG_VIDEO_MEDIATEK_VCODEC_SCP),) mtk-vcodec-common-y += mtk_vcodec_fw_scp.o endif + +ifneq ($(CONFIG_DEBUG_FS),) +obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-dbgfs.o + +mtk-vcodec-dbgfs-y := mtk_vcodec_dbgfs.o +endif \ No newline at end of file diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c new file mode 100644 index 000000000000..adf3f9133b0c --- /dev/null +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2023 MediaTek Inc. + * Author: Yunfei Dong + */ + +#include + +#include "mtk_vcodec_dbgfs.h" +#include "mtk_vcodec_drv.h" +#include "mtk_vcodec_util.h" + +void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev) +{ + struct dentry *vcodec_root; + + vcodec_dev->dbgfs.vcodec_root = debugfs_create_dir("vcodec-dec", NULL); + if (IS_ERR(vcodec_dev->dbgfs.vcodec_root)) + pr_info("create dir err:%d\n", IS_ERR(vcodec_dev->dbgfs.vcodec_root)); + + vcodec_root = vcodec_dev->dbgfs.vcodec_root; +} +EXPORT_SYMBOL_GPL(mtk_vcodec_dbgfs_init); + +void mtk_vcodec_dbgfs_deinit(struct mtk_vcodec_dev *vcodec_dev) +{ + debugfs_remove_recursive(vcodec_dev->dbgfs.vcodec_root); +} +EXPORT_SYMBOL_GPL(mtk_vcodec_dbgfs_deinit); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Mediatek video codec driver"); diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h new file mode 100644 index 000000000000..74f130f868c8 --- /dev/null +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2023 MediaTek Inc. + * Author: Yunfei Dong + */ + +#ifndef __MTK_VCODEC_DBGFS_H__ +#define __MTK_VCODEC_DBGFS_H__ + +struct mtk_vcodec_dev; + +struct mtk_vcodec_dbgfs { + struct dentry *vcodec_root; +}; + +#if defined(CONFIG_DEBUG_FS) +void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev); +void mtk_vcodec_dbgfs_deinit(struct mtk_vcodec_dev *vcodec_dev); +#else +static inline void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev) +{ +} + +static inline void mtk_vcodec_dbgfs_deinit(struct mtk_vcodec_dev *vcodec_dev) +{ +} +#endif +#endif diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c index 174a6eec2f54..de29b1fb0436 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c @@ -431,6 +431,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev) mtk_v4l2_debug(0, "media registered as /dev/media%d", vfd_dec->minor); } + mtk_vcodec_dbgfs_init(dev); mtk_v4l2_debug(0, "decoder registered as /dev/video%d", vfd_dec->minor); return 0; @@ -505,6 +506,7 @@ static int mtk_vcodec_dec_remove(struct platform_device *pdev) if (dev->vfd_dec) video_unregister_device(dev->vfd_dec); + mtk_vcodec_dbgfs_deinit(dev); v4l2_device_unregister(&dev->v4l2_dev); if (!dev->vdec_pdata->is_subdev_supported) pm_runtime_disable(dev->pm.dev); diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h index 9acab54fd650..a7e8bb3608ac 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h @@ -16,6 +16,7 @@ #include #include +#include "mtk_vcodec_dbgfs.h" #include "mtk_vcodec_util.h" #include "vdec_msg_queue.h" @@ -470,6 +471,7 @@ struct mtk_vcodec_enc_pdata { * @dec_active_cnt: used to mark whether need to record register value * @vdec_racing_info: record register value * @dec_racing_info_mutex: mutex lock used for inner racing mode + * @dbgfs: debug log related information */ struct mtk_vcodec_dev { struct v4l2_device v4l2_dev; @@ -520,6 +522,8 @@ struct mtk_vcodec_dev { u32 vdec_racing_info[132]; /* Protects access to vdec_racing_info data */ struct mutex dec_racing_info_mutex; + + struct mtk_vcodec_dbgfs dbgfs; }; static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)