From patchwork Thu May 27 13:03:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claire Chang X-Patchwork-Id: 12284197 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=-19.1 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, URIBL_BLOCKED,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 46E34C47089 for ; Thu, 27 May 2021 13:03:54 +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 0BC9861132 for ; Thu, 27 May 2021 13:03:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0BC9861132 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.133271.248490 (Exim 4.92) (envelope-from ) id 1lmFfu-0004h4-RR; Thu, 27 May 2021 13:03:46 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 133271.248490; Thu, 27 May 2021 13:03:46 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lmFfu-0004fV-N2; Thu, 27 May 2021 13:03:46 +0000 Received: by outflank-mailman (input) for mailman id 133271; Thu, 27 May 2021 13:03:45 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lmFft-0004HJ-Mn for xen-devel@lists.xenproject.org; Thu, 27 May 2021 13:03:45 +0000 Received: from mail-pf1-x435.google.com (unknown [2607:f8b0:4864:20::435]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id a47b63ad-8d60-4159-92cd-eadc6b6b963a; Thu, 27 May 2021 13:03:45 +0000 (UTC) Received: by mail-pf1-x435.google.com with SMTP id 22so509319pfv.11 for ; Thu, 27 May 2021 06:03:44 -0700 (PDT) Received: from localhost ([2401:fa00:95:205:a93:378d:9a9e:3b70]) by smtp.gmail.com with UTF8SMTPSA id w15sm2015155pjy.1.2021.05.27.06.03.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 27 May 2021 06:03:41 -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: a47b63ad-8d60-4159-92cd-eadc6b6b963a 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=m7+uI7rGPgfSKn+aVdUzTy5/dZn0TD9snxYJvtDtWr8=; b=ftmREmcxrJM5ghdWu3uu6RoVOQmn/FmRG0fXdD0sAjbx0bczGkzwvRTurlvaYuIvJW x3lcL0ttraMgqRb6RQUndSyEBiGIY3jtWjTqxgCUrCG/1jwY14bstcfPs5KZ9RhvRj5W T2wJrb10vnObIKglZGitAlnSSqiKkQCQp8AYQ= 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=m7+uI7rGPgfSKn+aVdUzTy5/dZn0TD9snxYJvtDtWr8=; b=AJ60oWOW8piSmO39i7ejv1tqCzZqTuSBfDixlrQz4BElRNB50M8Wu8U8bF7fkFRuHK duYlI/V9jYR4QkgiR4fZiFw9X9NZ3F5qj0btcvJQE+fKbXGsDNwTevvOK98pBj/QR6m+ I+qFDPTtlfQhbAztebHWcdodhFgTM06dXazBIrO5M6KKE3kgDCtVOc5cQut7sTlgEhyD wYZFvuDr3r2XRvb5NmwqnjC9XnNcgIsQFWtjDNJPn3HI9r0LSP3YQA9vqCw5iv/BiCWH cHxW/Bdllp7NSwCaog6L6AaQPOeSs0ahvPf+g+vVhSV/YAEgTUQp8kt0L8AP8efKch9k lBSQ== X-Gm-Message-State: AOAM531hm508AyoEdvnrqNmUmiIZIFh+pqVNdYhy7M7800rVvTYLdhi+ vHMemR6o1b3T+Osw8I6UClduHw== X-Google-Smtp-Source: ABdhPJwFMAyQyClkgtD2WU3AOT0NSiYpDWGkYsiRLX3TSIJ7iJhjuPVvZAr31+YEfks0HMDDaEOArA== X-Received: by 2002:a05:6a00:216a:b029:2df:3461:4ac3 with SMTP id r10-20020a056a00216ab02902df34614ac3mr3590982pff.80.1622120624345; Thu, 27 May 2021 06:03:44 -0700 (PDT) From: Claire Chang To: Rob Herring , mpe@ellerman.id.au, 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, rodrigo.vivi@intel.com, thomas.hellstrom@linux.intel.com Subject: [PATCH v8 11/15] dma-direct: Add a new wrapper __dma_direct_free_pages() Date: Thu, 27 May 2021 21:03:25 +0800 Message-Id: <20210527130329.1853588-1-tientzu@chromium.org> X-Mailer: git-send-email 2.31.1.818.g46aad6cb9e-goog 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 078f7087e466..eb4098323bbc 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) || \