From patchwork Wed Feb 10 00:57:52 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Niklas_S=C3=B6derlund?= X-Patchwork-Id: 8267351 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 1C0F59F38B for ; Wed, 10 Feb 2016 01:01:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 583E4202B8 for ; Wed, 10 Feb 2016 01:01:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7092620221 for ; Wed, 10 Feb 2016 01:01:14 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aTJ7m-0000dM-Gs; Wed, 10 Feb 2016 00:59:18 +0000 Received: from smtp-3.sys.kth.se ([2001:6b0:1:1300:250:56ff:fea6:2de2]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aTJ7i-0000aL-0R for linux-arm-kernel@lists.infradead.org; Wed, 10 Feb 2016 00:59:15 +0000 Received: from smtp-3.sys.kth.se (localhost.localdomain [127.0.0.1]) by smtp-3.sys.kth.se (Postfix) with ESMTP id 65BCF2AE9; Wed, 10 Feb 2016 01:58:51 +0100 (CET) X-Virus-Scanned: by amavisd-new at kth.se Received: from smtp-3.sys.kth.se ([127.0.0.1]) by smtp-3.sys.kth.se (smtp-3.sys.kth.se [127.0.0.1]) (amavisd-new, port 10024) with LMTP id PCVJQE5ZKSsV; Wed, 10 Feb 2016 01:58:50 +0100 (CET) X-KTH-Auth: niso [89.233.230.99] X-KTH-mail-from: niklas.soderlund+renesas@ragnatech.se Received: from bismarck.berto.se (dynamic.0.6.79d1f80.14cc20ac3a53.cust.bredband2.com [89.233.230.99]) by smtp-3.sys.kth.se (Postfix) with ESMTPSA id AA3462AF4; Wed, 10 Feb 2016 01:58:49 +0100 (CET) From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= To: linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, iommu@lists.linux-foundation.org Subject: [PATCH v3 2/8] dma-mapping: add {map, unmap}_resource to dma_map_ops Date: Wed, 10 Feb 2016 01:57:52 +0100 Message-Id: <1455065878-11906-3-git-send-email-niklas.soderlund+renesas@ragnatech.se> X-Mailer: git-send-email 2.7.1 In-Reply-To: <1455065878-11906-1-git-send-email-niklas.soderlund+renesas@ragnatech.se> References: <1455065878-11906-1-git-send-email-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160209_165914_276806_C700C40D X-CRM114-Status: UNSURE ( 7.62 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -3.5 (---) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, =?UTF-8?q?Niklas=20S=C3=B6derlund?= , arnd@arndb.de, geert+renesas@glider.be, vinod.koul@intel.com, linus.walleij@linaro.org, laurent.pinchart@ideasonboard.com, dan.j.williams@intel.com, robin.murphy@arm.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add methods to handle mapping of device resources from a physical address. This is needed for example to map be able to map MMIO FIFO registers to a IOMMU. Signed-off-by: Niklas Söderlund Reviewed-by: Laurent Pinchart --- include/linux/dma-mapping.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 75857cd..e3aba4e 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -49,6 +49,12 @@ struct dma_map_ops { struct scatterlist *sg, int nents, enum dma_data_direction dir, struct dma_attrs *attrs); + dma_addr_t (*map_resource)(struct device *dev, phys_addr_t phys_addr, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs); + void (*unmap_resource)(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs); void (*sync_single_for_cpu)(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction dir);