From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756239Ab0FVTqx (ORCPT ); Tue, 22 Jun 2010 15:46:53 -0400 Received: from rcsinet10.oracle.com ([148.87.113.121]:51764 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755395Ab0FVTqv (ORCPT >); Tue, 22 Jun 2010 15:46:51 -0400 From: Konrad Rzeszutek Wilk To: linux-kernel@vger.kernel.org, fujita.tomonori@lab.ntt.co.jp, iommu@lists.linux-foundation.org, albert_herranz@yahoo.es, x86@kernel.org Cc: Konrad Rzeszutek Wilk Subject: [PATCH 11/19] swiotlb-xen: Make 'xen_swiotlb_sync_single' work. Date: Tue, 22 Jun 2010 15:42:44 -0400 Message-Id: <1277235772-26757-12-git-send-email-konrad.wilk@oracle.com> X-Mailer: git-send-email 1.7.0.1 In-Reply-To: <1277235772-26757-1-git-send-email-konrad.wilk@oracle.com> References: <1277235772-26757-1-git-send-email-konrad.wilk@oracle.com> X-Auth-Type: Internal IP X-Source-IP: rcsinet13.oracle.com [148.87.113.125] X-CT-RefId: str=0001.0A090204.4C2112E9.014B:SCFMA4539811,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Refer to "swiotlb-xen: Make 'xen_swiotlb_[map|unmap]_page' work." for details why we want to use our own address translation mechanism. Signed-off-by: Konrad Rzeszutek Wilk --- lib/swiotlb-xen.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/lib/swiotlb-xen.c b/lib/swiotlb-xen.c index efafcce..ca6c537 100644 --- a/lib/swiotlb-xen.c +++ b/lib/swiotlb-xen.c @@ -282,11 +282,12 @@ xen_swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr, size_t size, enum dma_data_direction dir, enum dma_sync_target target) { - phys_addr_t paddr = dma_to_phys(hwdev, dev_addr); + phys_addr_t paddr = xen_bus_to_phys(hwdev, dev_addr); BUG_ON(dir == DMA_NONE); - if (is_xen_swiotlb_buffer(paddr)) { + /* NOTE: We use dev_addr here, not paddr! */ + if (is_xen_swiotlb_buffer(dev_addr)) { swiotlb_tbl_sync_single(hwdev, phys_to_virt(paddr), size, dir, target); return; -- 1.7.0.1