From: Jaswinder Singh Rajput <jaswinder@kernel.org>
To: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
x86 maintainers <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/2 -tip] x86: perf_counter check AMD performance monitoring support
Date: Thu, 11 Jun 2009 15:28:09 +0530 [thread overview]
Message-ID: <1244714289.6923.0.camel@ht.satnam> (raw)
AMD supports performance monitoring from K7.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
---
arch/x86/kernel/cpu/perf_counter.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index 57ae1be..719a7d5 100644
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -1452,6 +1452,10 @@ static int intel_pmu_init(void)
static int amd_pmu_init(void)
{
+ /* performance-monitoring supported from K7 */
+ if (boot_cpu_data.x86 < 6)
+ return -ENODEV;
+
x86_pmu = amd_pmu;
switch (boot_cpu_data.x86) {
--
1.6.0.6
next reply other threads:[~2009-06-11 10:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-11 9:58 Jaswinder Singh Rajput [this message]
2009-06-11 9:59 ` [PATCH 2/2 -tip] x86: perf_counter update AMD hw caching related event table Jaswinder Singh Rajput
2009-06-12 17:35 ` Ingo Molnar
2009-06-12 19:35 ` Jaswinder Singh Rajput
2009-06-12 19:36 ` Jaswinder Singh Rajput
2009-06-13 11:03 ` Ingo Molnar
2009-06-13 14:49 ` [tip:perfcounters/core] perf_counter, x86: Update " tip-bot for Jaswinder Singh Rajput
2009-06-13 14:49 ` [tip:perfcounters/core] perf_counter, x86: Check old-AMD performance monitoring support tip-bot for Jaswinder Singh Rajput
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