From patchwork Tue Jan 24 09:27:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Takashi Iwai X-Patchwork-Id: 13113715 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 53DCFC38142 for ; Tue, 24 Jan 2023 09:28:50 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E23BB85D; Tue, 24 Jan 2023 10:27:57 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E23BB85D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1674552527; bh=CyuvSZ+k/B4DZfPX8vLEMWVkSlriM854bIhasRgmG9U=; h=From:To:Subject:Date:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:Cc:From; b=TUcUz1A00+mCVuUMzW/qXdbWmP9qzFB4bk3T9qEww4/QkdkvW88+zaHcg94+Gu6il Vnb0TMqsIMVAOLLJNP3/QsFhKXEK9UPbqOCc+nS60PULlmURzYn4bzJwplsgArghB7 OGVFXiTTCRPvayqQKmVc+TChaadwPUCDX0qr+R6k= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 73F1EF8027D; Tue, 24 Jan 2023 10:27:57 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id F0AD8F8030F; Tue, 24 Jan 2023 10:27:52 +0100 (CET) Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id B581DF801D5 for ; Tue, 24 Jan 2023 10:27:49 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B581DF801D5 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key, unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256 header.s=susede2_rsa header.b=kSlUuZeC; dkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=ToOk0SaJ Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 530121F8C2; Tue, 24 Jan 2023 09:27:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1674552469; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=dGPg8oz/0KgeKFm3O/KaO4akyscl5TmxoVb/DGwxXBs=; b=kSlUuZeCGYiogsBr6/6NIJYOQ76/QYbAbRXnTN4huO9k6KYXAC4jYrLNylMFhhsnPAYMH8 sZXuNqeerLhwpdqkwaJ7Fn8HNHRvS1ihj7pXwOfHhAxkfnwoF11WQwSYgj2XkL4wh9v/k1 j9nVuonOr9QNnF6EQSJ3kiMU+g3BQmQ= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674552469; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=dGPg8oz/0KgeKFm3O/KaO4akyscl5TmxoVb/DGwxXBs=; b=ToOk0SaJs8D2ZeNX43NbGgBzlluX1ypdujQTtRG1FnZz/vWpluNS4q4Dzt+PztwIIyYjwO F7y6L78Utj5z4GAQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 218C9139FB; Tue, 24 Jan 2023 09:27:49 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 2SypBpWkz2NeUgAAMHmgww (envelope-from ); Tue, 24 Jan 2023 09:27:49 +0000 From: Takashi Iwai To: alsa-devel@alsa-project.org Subject: [PATCH 0/2] ALSA: memalloc: Fix for Xen PV and non-IOMMU systems Date: Tue, 24 Jan 2023 10:27:42 +0100 Message-Id: <20230124092744.27370-1-tiwai@suse.de> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.29 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: , Cc: =?utf-8?q?Marek_Marczykowski-G=C3=B3recki?= Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Hi, this is a patch series to address the recent regression on Xen PV (and possibly non-IOMMU) systems about the SG-buffer memory allocation. We switched to use dma_alloc_noncontiguous() as hoped it handling everything right, but it turned out that this doesn't work always. So this is one step back, use the explicit SG-buffer with dma_alloc_coherent() calls, but in a bit more optimized ways, and also applying only for those systems. Takashi === Takashi Iwai (2): ALSA: memalloc: Explicit SG-allocations for Xen PV and non-IOMMU systems ALSA: memalloc: Use coherent DMA allocation for fallback again sound/core/memalloc.c | 68 +++++++++++++++++++++++++++++++++---------- 1 file changed, 53 insertions(+), 15 deletions(-)