From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756036Ab2F0HJw (ORCPT ); Wed, 27 Jun 2012 03:09:52 -0400 Received: from mga02.intel.com ([134.134.136.20]:50945 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751850Ab2F0HJv (ORCPT ); Wed, 27 Jun 2012 03:09:51 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,352,1309762800"; d="scan'208";a="158674213" From: "Yan, Zheng" To: a.p.zijlstra@chello.nl, eranian@google.com, mingo@elte.hu, andi@firstfloor.org, linux-kernel@vger.kernel.org Cc: "Yan, Zheng" Subject: [PATCH 1/2] perf/x86: Use 0xff as pseudo code for fixed uncore event Date: Wed, 27 Jun 2012 15:09:12 +0800 Message-Id: <1340780953-21130-1-git-send-email-zheng.z.yan@intel.com> X-Mailer: git-send-email 1.7.10.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Yan, Zheng" Stephane Eranian suggestted using 0xff as pseudo code for fixed uncore event and using the umask value to determine which of the fixed events we want to map to. So far there is at most one fixed counter in a uncore PMU. So just change the definition of UNCORE_FIXED_EVENT to 0xff. Signed-off-by: Yan, Zheng --- arch/x86/kernel/cpu/perf_event_intel_uncore.c | 4 ++-- arch/x86/kernel/cpu/perf_event_intel_uncore.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c index 6f43f95..8ca0f8f 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c @@ -179,7 +179,7 @@ static struct attribute *snbep_uncore_pcu_formats_attr[] = { }; static struct uncore_event_desc snbep_uncore_imc_events[] = { - INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0xff"), + INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff"), INTEL_UNCORE_EVENT_DESC(cas_count_read, "event=0x04,umask=0x03"), INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x04,umask=0x0c"), { /* end: all zeroes */ }, @@ -616,7 +616,7 @@ static struct attribute_group nhm_uncore_format_group = { }; static struct uncore_event_desc nhm_uncore_events[] = { - INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0xff"), + INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff"), INTEL_UNCORE_EVENT_DESC(qmc_writes_full_any, "event=0x2f,umask=0x0f"), INTEL_UNCORE_EVENT_DESC(qmc_normal_reads_any, "event=0x2c,umask=0x0f"), INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_reads, "event=0x20,umask=0x01"), diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h index 4d52db0..88498c7 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h @@ -9,7 +9,7 @@ #define UNCORE_PMU_HRTIMER_INTERVAL (60 * NSEC_PER_SEC) -#define UNCORE_FIXED_EVENT 0xffff +#define UNCORE_FIXED_EVENT 0xff #define UNCORE_PMC_IDX_MAX_GENERIC 8 #define UNCORE_PMC_IDX_FIXED UNCORE_PMC_IDX_MAX_GENERIC #define UNCORE_PMC_IDX_MAX (UNCORE_PMC_IDX_FIXED + 1) -- 1.7.10.2