From patchwork Mon Apr 25 12:28:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Ujfalusi X-Patchwork-Id: 12825715 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 B46C7C433EF for ; Mon, 25 Apr 2022 12:28:55 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E18C316F8; Mon, 25 Apr 2022 14:28:03 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E18C316F8 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1650889734; bh=WKhcnxQ8X38lAKqCeWDogDZnUATsgztYcQbAfONXp30=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=gbK8Sk1D96M2rTsA4/71jyQCwSoMuaC+OWAM9MQHK1P94E4feR84293uoTlXRxPhe 8KYUOkc4+QABQS0pNrZjwlS2Ta6zeqC+l6nWFrFQ9l4co2HwSDSBpPRx10FP5E/BnS 5EIBUitRC0OeyXbDVoeifve7ExUJBdMrOHPjz+3w= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 55B26F80152; Mon, 25 Apr 2022 14:28:03 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 2FEB7F8016A; Mon, 25 Apr 2022 14:28:00 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 0D460F800CB for ; Mon, 25 Apr 2022 14:27:54 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 0D460F800CB Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="V6S9Anz5" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650889678; x=1682425678; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=WKhcnxQ8X38lAKqCeWDogDZnUATsgztYcQbAfONXp30=; b=V6S9Anz5QGjcOxV/cb9d94C2VxEYnQ3aDABUG8nc6Z4Vw6c+9Tkz43zP w19OV4UbKkxrKjI9zHRjKBTGhXKF9zHphkZGH/xuRb/t+PRkg1SRZfuQv qBetAP/JLnDSRIzaKi0hTUKwgjlCIBARzTm8nhi7if7o6U6RJCmqOwep3 qo002wVcfKuOdQ+5si/dlIt5vAmT5AJ1+KZzLFUzH+K2Iah7tDTF3G8BG 96zj5nHOCNlQVYHw57IC+vKYwDUMzmZCppHPnbL1g0d26l6FeA9F03yAU zGxBCodcvHomU56w2YbHxScne8he0qlB9RFEK2P9DVWK2kC2gNcXyfhYa A==; X-IronPort-AV: E=McAfee;i="6400,9594,10327"; a="265397560" X-IronPort-AV: E=Sophos;i="5.90,288,1643702400"; d="scan'208";a="265397560" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2022 05:27:52 -0700 X-IronPort-AV: E=Sophos;i="5.90,288,1643702400"; d="scan'208";a="557706729" Received: from mylinen-mobl1.ger.corp.intel.com (HELO pujfalus-desk.ger.corp.intel.com) ([10.252.32.111]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2022 05:27:50 -0700 From: Peter Ujfalusi To: tiwai@suse.de Subject: [PATCH] ALSA: memalloc: Add fallback SG-buffer free if fallback is used for noncontig Date: Mon, 25 Apr 2022 15:28:14 +0300 Message-Id: <20220425122814.751-1-peter.ujfalusi@linux.intel.com> X-Mailer: git-send-email 2.36.0 MIME-Version: 1.0 Cc: alsa-devel@alsa-project.org, pierre-louis.bossart@linux.intel.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Peter Ujfalusi If the dma_alloc_noncontiguous() fails in snd_dma_noncontig_alloc() we are taking a fallback path which should be taken into account on the free path since the way to free the two type of allocations are not the same. Fixes: 925ca893b4a6 ("ALSA: memalloc: Add fallback SG-buffer allocations for x86") Signed-off-by: Peter Ujfalusi Reported-by: kernel test robot Reported-by: kernel test robot Reported-by: kernel test robot --- Hi Takashi, I'm not sure about thisa as I can not get my systems to use the fallback, but in theory this shiuld be done, no? Since you have introduced the fallback, I believe there are cases when it is taken and it might be related to some strange memory allocation errors happening in SOF during firmware loading, like: https://github.com/thesofproject/linux/issues/3609 https://github.com/thesofproject/linux/issues/3584 https://github.com/thesofproject/linux/issues/3530 Regards, Peter sound/core/memalloc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index 15dc7160ba34..475fd38a4a48 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -537,6 +537,13 @@ static void *snd_dma_noncontig_alloc(struct snd_dma_buffer *dmab, size_t size) static void snd_dma_noncontig_free(struct snd_dma_buffer *dmab) { + if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_WC_SG_FALLBACK || + dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG_FALLBACK) { + /* The allocation is done with a fallback, use the matching free */ + snd_dma_sg_fallback_free(dmab); + return; + } + dma_vunmap_noncontiguous(dmab->dev.dev, dmab->area); dma_free_noncontiguous(dmab->dev.dev, dmab->bytes, dmab->private_data, dmab->dev.dir);