Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755283AbYLOOTT (ORCPT ); Mon, 15 Dec 2008 09:19:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753796AbYLOOSX (ORCPT ); Mon, 15 Dec 2008 09:18:23 -0500 Received: from outbound-sin.frontbridge.com ([207.46.51.80]:53944 "EHLO SG2EHSOBE004.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753460AbYLOOSW (ORCPT ); Mon, 15 Dec 2008 09:18:22 -0500 X-BigFish: VPS3(zzzzzzz32i43j63h) X-Spam-TCS-SCL: 2:0 X-WSS-ID: 0KBX926-04-RH8-01 From: Joerg Roedel To: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org CC: Joerg Roedel Subject: [PATCH 09/22] AMD IOMMU: add necessary header defines for stats counting Date: Mon, 15 Dec 2008 15:17:52 +0100 Message-ID: <1229350685-3816-10-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 14:18:06.0147 (UTC) FILETIME=[F2C41130:01C95EBF] 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: 1468 Lines: 51 Impact: add defines to make iommu stats collection configurable Signed-off-by: Joerg Roedel --- arch/x86/include/asm/amd_iommu_types.h | 26 ++++++++++++++++++++++++++ 1 files changed, 26 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h index 7abf9cf..1379c5f 100644 --- a/arch/x86/include/asm/amd_iommu_types.h +++ b/arch/x86/include/asm/amd_iommu_types.h @@ -396,4 +396,30 @@ static inline u16 calc_devid(u8 bus, u8 devfn) return (((u16)bus) << 8) | devfn; } +#ifdef CONFIG_AMD_IOMMU_STATS + +struct __iommu_counter { + char *name; + struct dentry *dent; + u64 value; +}; + +#define DECLARE_STATS_COUNTER(nm) \ + static struct __iommu_counter nm = { \ + .name = #nm, \ + } + +#define INC_STATS_COUNTER(name) name.value += 1 +#define ADD_STATS_COUNTER(name, x) name.value += (x) +#define SUB_STATS_COUNTER(name, x) name.value -= (x) + +#else /* CONFIG_AMD_IOMMU_STATS */ + +#define DECLARE_STATS_COUNTER(name) +#define INC_STATS_COUNTER(name) +#define ADD_STATS_COUNTER(name, x) +#define SUB_STATS_COUNTER(name, x) + +#endif /* CONFIG_AMD_IOMMU_STATS */ + #endif /* _ASM_X86_AMD_IOMMU_TYPES_H */ -- 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/