From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758819AbZEVMYg (ORCPT ); Fri, 22 May 2009 08:24:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757759AbZEVMWd (ORCPT ); Fri, 22 May 2009 08:22:33 -0400 Received: from outbound-dub.frontbridge.com ([213.199.154.16]:21911 "EHLO IE1EHSOBE003.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757573AbZEVMWX (ORCPT ); Fri, 22 May 2009 08:22:23 -0400 X-BigFish: VPS1(zzzz1202hzzz32i67h) X-Spam-TCS-SCL: 6:0 X-WSS-ID: 0KK1P10-01-JR9-01 From: Joerg Roedel To: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org CC: Joerg Roedel Subject: [PATCH 12/12] amd-iommu: don't free dma adresses below 512MB with CONFIG_IOMMU_STRESS Date: Fri, 22 May 2009 14:21:33 +0200 Message-ID: <1242994893-28902-13-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.6.3.1 In-Reply-To: <1242994893-28902-1-git-send-email-joerg.roedel@amd.com> References: <1242994893-28902-1-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 22 May 2009 12:21:33.0126 (UTC) FILETIME=[D7DE3E60:01C9DAD7] MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ impact: stress test automatic aperture enlargement code ] Signed-off-by: Joerg Roedel --- arch/x86/kernel/amd_iommu.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 33434c4..04ff5ec 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -824,6 +824,11 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom, BUG_ON(i >= APERTURE_MAX_RANGES || range == NULL); +#ifdef CONFIG_IOMMU_STRESS + if (i < 4) + return; +#endif + if (address >= dom->next_address) dom->need_flush = true; -- 1.6.3.1