From patchwork Tue Apr 4 08:10:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 13199252 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 9993CC761A6 for ; Tue, 4 Apr 2023 08:11:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234098AbjDDIL3 (ORCPT ); Tue, 4 Apr 2023 04:11:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233991AbjDDILU (ORCPT ); Tue, 4 Apr 2023 04:11:20 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1AB7E1BEF; Tue, 4 Apr 2023 01:11:15 -0700 (PDT) X-UUID: 40c6cd3ad2c011eda9a90f0bb45854f4-20230404 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=SiqXSE1ikGuN2kujDRHrLA7wvGLfjhDFl2RImkb91go=; b=SO6tbhz/mpf/30Wieaajx+aeBiwEflu+XbunP2NeTQt5d3RXV4v7y8bBZ+q72KdnOhxKFtOMJKd2gqlsnxvj7SiGvYOz9piuiD0pTMbxD9DfcZTpNFIfQbQofDN9lsYn1LkRY/BgeBF2quDocD7e9g2XVs9P1QRQH6FItAQkhAY=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22,REQID:379385c6-dbd2-46e9-b5fe-7ec6c258b5a0,IP:0,U RL:0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:90 X-CID-INFO: VERSION:1.1.22,REQID:379385c6-dbd2-46e9-b5fe-7ec6c258b5a0,IP:0,URL :0,TC:0,Content:-5,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTIO N:quarantine,TS:90 X-CID-META: VersionHash:120426c,CLOUDID:ae88552a-564d-42d9-9875-7c868ee415ec,B ulkID:230404161110V2SGYDN0,BulkQuantity:0,Recheck:0,SF:38|29|28|17|19|48,T C:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0 ,OSI:0,OSA:0,AV:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-UUID: 40c6cd3ad2c011eda9a90f0bb45854f4-20230404 Received: from mtkmbs13n1.mediatek.inc [(172.21.101.193)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 314086191; Tue, 04 Apr 2023 16:11:08 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Tue, 4 Apr 2023 16:11:06 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Tue, 4 Apr 2023 16:11:05 +0800 From: Yunfei Dong To: Yunfei Dong , Chen-Yu Tsai , Nicolas Dufresne , Hans Verkuil , AngeloGioacchino Del Regno , Benjamin Gaignard , =?utf-8?q?N=C3=ADcolas?= =?utf-8?q?_F_=2E_R_=2E_A_=2E_Prado?= CC: Matthias Brugger , Hsin-Yi Wang , Fritz Koenig , Daniel Vetter , Steve Cho , , , , , , Subject: [PATCH v4,3/8] media: mediatek: vcodec: Add a debugfs file to get different useful information Date: Tue, 4 Apr 2023 16:10:57 +0800 Message-ID: <20230404081102.30713-4-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230404081102.30713-1-yunfei.dong@mediatek.com> References: <20230404081102.30713-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org In oder to get each instance information according to test command, adding one file node "vdec". Can use echo command to set different string value as 'echo -picinfo > vdec'. Signed-off-by: Yunfei Dong --- .../mediatek/vcodec/mtk_vcodec_dbgfs.c | 64 +++++++++++++++++++ .../mediatek/vcodec/mtk_vcodec_dbgfs.h | 31 +++++++++ .../mediatek/vcodec/mtk_vcodec_dec_drv.c | 2 + 3 files changed, 97 insertions(+) diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c index b5093e4e4aa2..4aade064af96 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.c @@ -10,6 +10,64 @@ #include "mtk_vcodec_drv.h" #include "mtk_vcodec_util.h" +static ssize_t mtk_vdec_dbgfs_write(struct file *filp, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct mtk_vcodec_dev *vcodec_dev = filp->private_data; + struct mtk_vcodec_dbgfs *dbgfs = &vcodec_dev->dbgfs; + int len; + + mutex_lock(&dbgfs->dbgfs_lock); + len = simple_write_to_buffer(dbgfs->dbgfs_buf, sizeof(dbgfs->dbgfs_buf), + ppos, ubuf, count); + mutex_unlock(&dbgfs->dbgfs_lock); + if (len > 0) + return count; + + return len; +} + +static const struct file_operations vdec_fops = { + .open = simple_open, + .write = mtk_vdec_dbgfs_write, +}; + +void mtk_vcodec_dbgfs_create(struct mtk_vcodec_ctx *ctx) +{ + struct mtk_vcodec_dbgfs_inst *dbgfs_inst; + struct mtk_vcodec_dev *vcodec_dev = ctx->dev; + + dbgfs_inst = kzalloc(sizeof(*dbgfs_inst), GFP_KERNEL); + if (!dbgfs_inst) + return; + + list_add_tail(&dbgfs_inst->node, &vcodec_dev->dbgfs.dbgfs_head); + + vcodec_dev->dbgfs.inst_count++; + + dbgfs_inst->inst_id = ctx->id; + dbgfs_inst->vcodec_ctx = ctx; +} +EXPORT_SYMBOL_GPL(mtk_vcodec_dbgfs_create); + +void mtk_vcodec_dbgfs_remove(struct mtk_vcodec_dev *vcodec_dev, int ctx_id) +{ + struct mtk_vcodec_dbgfs_inst *dbgfs_inst; + + list_for_each_entry(dbgfs_inst, &vcodec_dev->dbgfs.dbgfs_head, node) { + if (dbgfs_inst && dbgfs_inst->inst_id == ctx_id) { + vcodec_dev->dbgfs.inst_count--; + break; + } + } + + if (dbgfs_inst) { + list_del(&dbgfs_inst->node); + kfree(dbgfs_inst); + } +} +EXPORT_SYMBOL_GPL(mtk_vcodec_dbgfs_remove); + void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev) { struct dentry *vcodec_root; @@ -22,6 +80,12 @@ void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev) vcodec_root = vcodec_dev->dbgfs.vcodec_root; debugfs_create_x32("mtk_v4l2_dbg_level", 0644, vcodec_root, &mtk_v4l2_dbg_level); debugfs_create_x32("mtk_vcodec_dbg", 0644, vcodec_root, &mtk_vcodec_dbg); + + vcodec_dev->dbgfs.inst_count = 0; + + INIT_LIST_HEAD(&vcodec_dev->dbgfs.dbgfs_head); + debugfs_create_file("vdec", 0200, vcodec_root, vcodec_dev, &vdec_fops); + mutex_init(&vcodec_dev->dbgfs.dbgfs_lock); } EXPORT_SYMBOL_GPL(mtk_vcodec_dbgfs_init); diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h index 5eec2211cbbe..9df760475684 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dbgfs.h @@ -8,19 +8,50 @@ #define __MTK_VCODEC_DBGFS_H__ struct mtk_vcodec_dev; +struct mtk_vcodec_ctx; + +/** + * struct mtk_vcodec_dbgfs_inst - debugfs information for each inst + * @node: list node for each inst + * @vcodec_ctx: struct mtk_vcodec_ctx + * @inst_id: index of the context that the same with ctx->id + */ +struct mtk_vcodec_dbgfs_inst { + struct list_head node; + struct mtk_vcodec_ctx *vcodec_ctx; + int inst_id; +}; /** * struct mtk_vcodec_dbgfs - dbgfs information + * @dbgfs_head: list head used to link each instance * @vcodec_root: vcodec dbgfs entry + * @dbgfs_lock: dbgfs lock used to protect dbgfs_buf + * @dbgfs_buf: dbgfs buf used to store dbgfs cmd + * @inst_count: the count of total instance */ struct mtk_vcodec_dbgfs { + struct list_head dbgfs_head; struct dentry *vcodec_root; + struct mutex dbgfs_lock; + char dbgfs_buf[1024]; + int inst_count; }; #if defined(CONFIG_DEBUG_FS) +void mtk_vcodec_dbgfs_create(struct mtk_vcodec_ctx *ctx); +void mtk_vcodec_dbgfs_remove(struct mtk_vcodec_dev *vcodec_dev, int ctx_id); 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_create(struct mtk_vcodec_ctx *ctx) +{ +} + +static inline void mtk_vcodec_dbgfs_remove(struct mtk_vcodec_dev *vcodec_dev, int ctx_id) +{ +} + static inline void mtk_vcodec_dbgfs_init(struct mtk_vcodec_dev *vcodec_dev) { } 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 de29b1fb0436..8c2443a18f5e 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c @@ -215,6 +215,7 @@ static int fops_vcodec_open(struct file *file) ctx->dev->vdec_pdata->init_vdec_params(ctx); list_add(&ctx->list, &dev->ctx_list); + mtk_vcodec_dbgfs_create(ctx); mutex_unlock(&dev->dev_mutex); mtk_v4l2_debug(0, "%s decoder [%d]", dev_name(&dev->plat_dev->dev), @@ -256,6 +257,7 @@ static int fops_vcodec_release(struct file *file) v4l2_fh_exit(&ctx->fh); v4l2_ctrl_handler_free(&ctx->ctrl_hdl); + mtk_vcodec_dbgfs_remove(dev, ctx->id); list_del_init(&ctx->list); kfree(ctx); mutex_unlock(&dev->dev_mutex);