Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757406AbYLOOZe (ORCPT ); Mon, 15 Dec 2008 09:25:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755419AbYLOOTf (ORCPT ); Mon, 15 Dec 2008 09:19:35 -0500 Received: from outbound-dub.frontbridge.com ([213.199.154.16]:27409 "EHLO IE1EHSOBE002.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755006AbYLOOTe (ORCPT ); Mon, 15 Dec 2008 09:19:34 -0500 X-BigFish: VPS3(zzzzzzz32i43j61h) X-Spam-TCS-SCL: 0:0 X-WSS-ID: 0KBX93A-03-00R-01 From: Joerg Roedel To: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org CC: Joerg Roedel Subject: [PATCH 19/22] AMD IOMMU: add stats counter for single iommu domain tlb flushes Date: Mon, 15 Dec 2008 15:18:02 +0100 Message-ID: <1229350685-3816-20-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.5.6.4 In-Reply-To: <1229350685-3816-1-git-send-email-joerg.roedel@amd.com> References: <1229350685-3816-1-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 15 Dec 2008 14:18:06.0475 (UTC) FILETIME=[F2F61DB0:01C95EBF] 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 Content-Length: 1422 Lines: 45 Impact: see number of single iommu domain tlb flushes in debugfs Signed-off-by: Joerg Roedel --- arch/x86/kernel/amd_iommu.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 02e8c18..8490a06 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -71,6 +71,7 @@ DECLARE_STATS_COUNTER(cnt_unmap_sg); DECLARE_STATS_COUNTER(cnt_alloc_coherent); DECLARE_STATS_COUNTER(cnt_free_coherent); DECLARE_STATS_COUNTER(cross_page); +DECLARE_STATS_COUNTER(domain_flush_single); static struct dentry *stats_dir; static struct dentry *de_isolate; @@ -105,6 +106,7 @@ static void amd_iommu_stats_init(void) amd_iommu_stats_add(&cnt_alloc_coherent); amd_iommu_stats_add(&cnt_free_coherent); amd_iommu_stats_add(&cross_page); + amd_iommu_stats_add(&domain_flush_single); } #endif @@ -412,6 +414,8 @@ static void iommu_flush_tlb(struct amd_iommu *iommu, u16 domid) { u64 address = CMD_INV_IOMMU_ALL_PAGES_ADDRESS; + INC_STATS_COUNTER(domain_flush_single); + iommu_queue_inv_iommu_pages(iommu, address, domid, 0, 1); } -- 1.5.6.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/