From patchwork Fri Aug 21 04:14:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hsin-Yi Wang X-Patchwork-Id: 11728027 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8AABD913 for ; Fri, 21 Aug 2020 04:14:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6F02F208C7 for ; Fri, 21 Aug 2020 04:14:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="kUGCGos3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725951AbgHUEOZ (ORCPT ); Fri, 21 Aug 2020 00:14:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33358 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725268AbgHUEOX (ORCPT ); Fri, 21 Aug 2020 00:14:23 -0400 Received: from mail-pj1-x1044.google.com (mail-pj1-x1044.google.com [IPv6:2607:f8b0:4864:20::1044]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4CDF5C061385 for ; Thu, 20 Aug 2020 21:14:23 -0700 (PDT) Received: by mail-pj1-x1044.google.com with SMTP id kr4so267390pjb.2 for ; Thu, 20 Aug 2020 21:14:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=R+6PqGDmju1P8TUKui985wN5cTC8kMP9k9WSWy+URa0=; b=kUGCGos3WLE1bpbh6O7msg86bx9Ao0Sf5P1qcz6SN4hewmUEXGH6Ajt8gkbFzrBxaQ Es1FJMpwyGCUmrZm7c9k6z+Gqp55q/SGRmM3MlvJAgIPFl6wrGT39ZPOVYBWVT/janLp 3bzNMPXsvnVEXRD/Un5qzVTWvtrATK8365Zlw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=R+6PqGDmju1P8TUKui985wN5cTC8kMP9k9WSWy+URa0=; b=BTmYI27KuBqdBoMlrYSxt9eXvmMZLy95EatfYNsW0Rd5CZufEkFnRynEJ6T1m/aDSc gmBk174VjQecJl/8oNByED8sMw4tRMNJvlDtgUhfwHevdoD7szeGQjJTdoSN5NDm483a KtftyCHFempFM7q/d1hMZGgJBWEjzQDT0g3etFLVb75sY0Xr/dzVBQhlgNHO2rawGytX 3elMKcbvOG/+KWbsmoef2HePXR+S5BHHBBtpwcp+jLPC3tEKCbwlcyla5SNOgyxwYzpt HirqpotvyUq2cVimKVY3fHwIsamgoJKV5OkYGWmmmUkHWbTVvZfjl+ppWKOUZZYqIfCi CfyQ== X-Gm-Message-State: AOAM532kOy6I+rOOksubmZiSqtWq9URciQGkmdyniSDX5PK8OArFZNH5 iWNp57CwqBWaHHnglz+GThhkeA== X-Google-Smtp-Source: ABdhPJyoE4QtlNetKdTpBD0mBXP4WeZ4fIV/NQsjOJ7MyXGse2cOOLja6gdF5h7neoQfxkWjQuiN6A== X-Received: by 2002:a17:90a:ea8e:: with SMTP id h14mr956670pjz.105.1597983262635; Thu, 20 Aug 2020 21:14:22 -0700 (PDT) Received: from hsinyi-z840.tpe.corp.google.com ([2401:fa00:1:10:1a60:24ff:fe89:3e93]) by smtp.gmail.com with ESMTPSA id 30sm419936pjz.24.2020.08.20.21.14.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Aug 2020 21:14:22 -0700 (PDT) From: Hsin-Yi Wang To: linux-mediatek@lists.infradead.org Cc: Tiffany Lin , Andrew-CT Chen , Mauro Carvalho Chehab , Matthias Brugger , linux-media@vger.kernel.org, Irui Wang , Anand K Mistry , Alexandre Courbot , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] media: mtk-vcodec: set dma max segment size Date: Fri, 21 Aug 2020 12:14:14 +0800 Message-Id: <20200821041414.1560707-1-hsinyi@chromium.org> X-Mailer: git-send-email 2.28.0.297.g1956fa8f8d-goog MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Set dma max segment size for encoder and decoder driver. Fix following warning with CONFIG_DMA_API_DEBUG_SG=y [ 75.147825] ------------[ cut here ]------------ [ 75.147844] mtk-vcodec-enc 19002000.vcodec: DMA-API: mapping sg segment longer than device claims to support [len=983040] [max=65536] [ 75.147876] WARNING: CPU: 2 PID: 4069 at kernel/dma/debug.c:1302 debug_dma_map_sg+0x1a8/0x2c4 ... [ 75.148139] Call trace: [ 75.148149] debug_dma_map_sg+0x1a8/0x2c4 [ 75.148165] vb2_dc_get_userptr+0x228/0x364 [videobuf2_dma_contig] [ 75.148178] __buf_prepare+0x3ac/0x8c0 [videobuf2_common] [ 75.148188] vb2_core_qbuf+0xa4/0x58c [videobuf2_common] [ 75.148199] vb2_qbuf+0x88/0xe4 [videobuf2_v4l2] [ 75.148211] v4l2_m2m_qbuf+0x80/0xf8 [v4l2_mem2mem] [ 75.148221] vidioc_venc_qbuf+0x3c/0x70 [mtk_vcodec_enc] [ 75.148234] v4l_qbuf+0x48/0x58 [ 75.148242] __video_do_ioctl+0x200/0x37c [ 75.148250] video_usercopy+0x360/0x834 [ 75.148259] video_ioctl2+0x38/0x48 [ 75.148267] v4l2_ioctl+0x6c/0x80 [ 75.148276] do_video_ioctl+0xefc/0x4b70 [ 75.148284] v4l2_compat_ioctl32+0x5c/0xcc [ 75.148294] __arm64_compat_sys_ioctl+0xf4/0x240 [ 75.148304] el0_svc_common+0xac/0x198 [ 75.148312] el0_svc_compat_handler+0x2c/0x40 [ 75.148321] el0_svc_compat+0x8/0x18 [ 75.148328] irq event stamp: 0 [ 75.148337] hardirqs last enabled at (0): [<0000000000000000>] (null) [ 75.148347] hardirqs last disabled at (0): [] copy_process+0x380/0x115c [ 75.148356] softirqs last enabled at (0): [] copy_process+0x398/0x115c [ 75.148364] softirqs last disabled at (0): [<0000000000000000>] (null) [ 75.148372] ---[ end trace 588bf529451e3531 ]--- Reported-by: Anand K Mistry Signed-off-by: Hsin-Yi Wang --- drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 8 ++++++++ drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 8 ++++++++ 2 files changed, 16 insertions(+) diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c index 97a1b6664c20..3bbd0bac56d6 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -242,6 +242,14 @@ static int mtk_vcodec_probe(struct platform_device *pdev) mtk_v4l2_err("[VPU] vpu device in not ready"); return -EPROBE_DEFER; } + if (!pdev->dev.dma_parms) { + pdev->dev.dma_parms = devm_kzalloc(&pdev->dev, + sizeof(*pdev->dev.dma_parms), + GFP_KERNEL); + if (!pdev->dev.dma_parms) + return -ENOMEM; + } + dma_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32)); vpu_wdt_reg_handler(dev->vpu_plat_dev, mtk_vcodec_dec_reset_handler, dev, VPU_RST_DEC); diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c index 4d31f1ed113f..ff4a87485d69 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c @@ -249,6 +249,14 @@ static int mtk_vcodec_probe(struct platform_device *pdev) mtk_v4l2_err("[VPU] vpu device in not ready"); return -EPROBE_DEFER; } + if (!pdev->dev.dma_parms) { + pdev->dev.dma_parms = devm_kzalloc(&pdev->dev, + sizeof(*pdev->dev.dma_parms), + GFP_KERNEL); + if (!pdev->dev.dma_parms) + return -ENOMEM; + } + dma_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32)); vpu_wdt_reg_handler(dev->vpu_plat_dev, mtk_vcodec_enc_reset_handler, dev, VPU_RST_ENC);