From patchwork Thu Apr 22 08:15:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claire Chang X-Patchwork-Id: 12217943 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8F54C433ED for ; Thu, 22 Apr 2021 08:17:17 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5564E613C0 for ; Thu, 22 Apr 2021 08:17:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5564E613C0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.115138.219583 (Exim 4.92) (envelope-from ) id 1lZUWH-00030q-2v; Thu, 22 Apr 2021 08:17:05 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 115138.219583; Thu, 22 Apr 2021 08:17:05 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lZUWG-00030d-Va; Thu, 22 Apr 2021 08:17:04 +0000 Received: by outflank-mailman (input) for mailman id 115138; Thu, 22 Apr 2021 08:17:03 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lZUWE-0002zU-VA for xen-devel@lists.xenproject.org; Thu, 22 Apr 2021 08:17:02 +0000 Received: from mail-pj1-x102e.google.com (unknown [2607:f8b0:4864:20::102e]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 1a017b62-e4b0-4235-8260-a1a494a76183; Thu, 22 Apr 2021 08:17:02 +0000 (UTC) Received: by mail-pj1-x102e.google.com with SMTP id f2-20020a17090a4a82b02900c67bf8dc69so544562pjh.1 for ; Thu, 22 Apr 2021 01:17:02 -0700 (PDT) Received: from localhost ([2401:fa00:1:10:1a8e:1bde:f79e:c302]) by smtp.gmail.com with UTF8SMTPSA id m3sm1445841pgl.91.2021.04.22.01.16.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 22 Apr 2021 01:17:01 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 1a017b62-e4b0-4235-8260-a1a494a76183 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=II4tcMZ5Sw7jMUCuMNHItr2ESdAma+cudK/mj3wTE4E=; b=g67oZjS4DG+MlBHAj5fP4OXD/aByavtOTh4g+oC1qn1ppqQSBF1tkJ0F6VjeXpk7XZ dMZktmKOrk4Wn3QuYuQVSUq0o7o1vo2ytqYa1fC1S3W1yzuB1Vnkl8D9OUsD3jSSHINJ bA/iMCQ6pIa/UrEFSh4rBJKrVOhYdlsthwSBU= 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=II4tcMZ5Sw7jMUCuMNHItr2ESdAma+cudK/mj3wTE4E=; b=VxYdNZ2/WPOrDyzzkwjpved6db90t+D7gP40k3frqZ786JqhjvO5rbySxoIzCdsL6V nSMFNK7fLpoTR9etd8S3SEDWEMy689H1EEhwO5XbfumSG9q9tgYUYCEPcn+0/Qh44jyo tVTl6mJb2ueJDNDGPwKoo9EsBsi/MszB4yQSQI2/bhf6FvS1o8lET9gE+Acc1Wau90Dn ELvGA+WL+jl9dpnKhHYi4JO6jz/s/WMPhlKtFcoEPAW7AuaFCUAAnF8ojIHumx94k24t p6Pz0soVOKh6jANjIfi/0V11c5FT+8leprcRyHdnDz7Jqrv2V81IehH4+5WZtjM+CWtU 7AxQ== X-Gm-Message-State: AOAM533c2E4fMLy86e6wnNBMpnZsC4YpsQHiIu4XdbGS678AS+BLja0e IRjFhYlRyjDHe/fC5pR3aA1aCw== X-Google-Smtp-Source: ABdhPJydBgDAieBYh/9Ynn+xY2fjE6IZW8L2sy0R9JNHtf8kZ7Y8TDb9J+jJ/cnp9RtKMkr9CXa+fg== X-Received: by 2002:a17:90b:812:: with SMTP id bk18mr2736214pjb.145.1619079421594; Thu, 22 Apr 2021 01:17:01 -0700 (PDT) From: Claire Chang To: Joerg Roedel , Will Deacon , Frank Rowand , Konrad Rzeszutek Wilk , boris.ostrovsky@oracle.com, jgross@suse.com, Christoph Hellwig , Marek Szyprowski Cc: benh@kernel.crashing.org, paulus@samba.org, "list@263.net:IOMMU DRIVERS" , sstabellini@kernel.org, Robin Murphy , grant.likely@arm.com, xypron.glpk@gmx.de, Thierry Reding , mingo@kernel.org, bauerman@linux.ibm.com, peterz@infradead.org, Greg KH , Saravana Kannan , "Rafael J . Wysocki" , heikki.krogerus@linux.intel.com, Andy Shevchenko , Randy Dunlap , Dan Williams , Bartosz Golaszewski , linux-devicetree , lkml , linuxppc-dev@lists.ozlabs.org, xen-devel@lists.xenproject.org, Nicolas Boichat , Jim Quinlan , tfiga@chromium.org, bskeggs@redhat.com, bhelgaas@google.com, chris@chris-wilson.co.uk, tientzu@chromium.org, daniel@ffwll.ch, airlied@linux.ie, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, jani.nikula@linux.intel.com, jxgao@google.com, joonas.lahtinen@linux.intel.com, linux-pci@vger.kernel.org, maarten.lankhorst@linux.intel.com, matthew.auld@intel.com, nouveau@lists.freedesktop.org, rodrigo.vivi@intel.com, thomas.hellstrom@linux.intel.com Subject: [PATCH v5 12/16] dma-direct: Add a new wrapper __dma_direct_free_pages() Date: Thu, 22 Apr 2021 16:15:04 +0800 Message-Id: <20210422081508.3942748-13-tientzu@chromium.org> X-Mailer: git-send-email 2.31.1.368.gbe11c130af-goog In-Reply-To: <20210422081508.3942748-1-tientzu@chromium.org> References: <20210422081508.3942748-1-tientzu@chromium.org> MIME-Version: 1.0 Add a new wrapper __dma_direct_free_pages() that will be useful later for swiotlb_free(). Signed-off-by: Claire Chang --- kernel/dma/direct.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c index 7a88c34d0867..7a27f0510fcc 100644 --- a/kernel/dma/direct.c +++ b/kernel/dma/direct.c @@ -75,6 +75,12 @@ static bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size) min_not_zero(dev->coherent_dma_mask, dev->bus_dma_limit); } +static void __dma_direct_free_pages(struct device *dev, struct page *page, + size_t size) +{ + dma_free_contiguous(dev, page, size); +} + static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, gfp_t gfp) { @@ -237,7 +243,7 @@ void *dma_direct_alloc(struct device *dev, size_t size, return NULL; } out_free_pages: - dma_free_contiguous(dev, page, size); + __dma_direct_free_pages(dev, page, size); return NULL; } @@ -273,7 +279,7 @@ void dma_direct_free(struct device *dev, size_t size, else if (IS_ENABLED(CONFIG_ARCH_HAS_DMA_CLEAR_UNCACHED)) arch_dma_clear_uncached(cpu_addr, size); - dma_free_contiguous(dev, dma_direct_to_page(dev, dma_addr), size); + __dma_direct_free_pages(dev, dma_direct_to_page(dev, dma_addr), size); } struct page *dma_direct_alloc_pages(struct device *dev, size_t size, @@ -310,7 +316,7 @@ struct page *dma_direct_alloc_pages(struct device *dev, size_t size, *dma_handle = phys_to_dma_direct(dev, page_to_phys(page)); return page; out_free_pages: - dma_free_contiguous(dev, page, size); + __dma_direct_free_pages(dev, page, size); return NULL; } @@ -329,7 +335,7 @@ void dma_direct_free_pages(struct device *dev, size_t size, if (force_dma_unencrypted(dev)) set_memory_encrypted((unsigned long)vaddr, 1 << page_order); - dma_free_contiguous(dev, page, size); + __dma_direct_free_pages(dev, page, size); } #if defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE) || \