From: Jaswinder Singh Rajput <jaswinder@kernel.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@kernel.org>,
Robert Richter <robert.richter@amd.com>,
Dave Jones <davej@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
x86 maintainers <x86@kernel.org>
Subject: [PATCH 6/10 -tip] x86: early_init_intel() user of Advanced Power Management features
Date: Tue, 12 May 2009 21:11:48 +0530 [thread overview]
Message-ID: <1242142908.2547.20.camel@ht.satnam> (raw)
In-Reply-To: <1242142849.2547.19.camel@ht.satnam>
use X86_FEATURE_CONSTANT_TSC to determine TSC Invariance
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
---
arch/x86/kernel/cpu/intel.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 7437fa1..62130a0 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -61,14 +61,14 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
c->x86_phys_bits = 36;
/*
- * c->x86_power is 8000_0007 edx. Bit 8 is TSC runs at constant rate
- * with P/T states and does not stop in deep C-states.
+ * Advanced power management is 8000_0007 edx.
+ * Bit 8 is TSC runs at constant rate with P/T states
+ * and does not stop in deep C-states.
*
* It is also reliable across cores and sockets. (but not across
* cabinets - we turn it off in that case explicitly.)
*/
- if (c->x86_power & (1 << 8)) {
- set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
+ if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);
set_cpu_cap(c, X86_FEATURE_TSC_RELIABLE);
sched_clock_stable = 1;
--
1.6.0.6
next prev parent reply other threads:[~2009-05-12 15:48 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-12 15:35 [git-pull -tip][PATCH 0/10] few cpufeature additions and users Jaswinder Singh Rajput
2009-05-12 15:37 ` [PATCH 1/10 -tip] x86: Add cpufeature for Processor Name Jaswinder Singh Rajput
2009-05-12 15:38 ` [PATCH 2/10 -tip] x86: get_model_name() user of X86_FEATURE_PNAME Jaswinder Singh Rajput
2009-05-12 15:39 ` [PATCH 3/10 -tip] x86: Add cpufeatures for Advanced Power Management Jaswinder Singh Rajput
2009-05-12 15:40 ` [PATCH 4/10 -tip] x86: check_powernow() for K7 user of Advanced Power Management features Jaswinder Singh Rajput
2009-05-12 15:40 ` [PATCH 5/10 -tip] x86: check_powernow() for K8 and later " Jaswinder Singh Rajput
2009-05-12 15:41 ` Jaswinder Singh Rajput [this message]
2009-05-12 15:42 ` [PATCH 7/10 -tip] x86: early_init_amd() " Jaswinder Singh Rajput
2009-05-12 15:43 ` [PATCH 8/10 -tip] x86: Add cpufeature for Microcode update Jaswinder Singh Rajput
2009-05-12 15:44 ` [PATCH 9/10 -tip] x86: collect_cpu_info() of Intel user of Microcode feature Jaswinder Singh Rajput
2009-05-12 15:44 ` [PATCH 10/10 -tip] x86: collect_cpu_info() of AMD " Jaswinder Singh Rajput
2009-05-13 5:47 ` Andreas Herrmann
2009-05-13 7:20 ` Jaswinder Singh Rajput
2009-05-13 5:46 ` [PATCH 8/10 -tip] x86: Add cpufeature for Microcode update Andreas Herrmann
2009-05-13 7:18 ` Jaswinder Singh Rajput
2009-05-13 6:18 ` [PATCH 6/10 -tip] x86: early_init_intel() user of Advanced Power Management features Andreas Herrmann
2009-05-13 7:20 ` Jaswinder Singh Rajput
2009-05-12 17:48 ` [PATCH 5/10 -tip] x86: check_powernow() for K8 and later " Ingo Molnar
2009-05-12 18:45 ` Jaswinder Singh Rajput
2009-05-13 6:36 ` Andreas Herrmann
2009-05-12 19:07 ` [PATCH 4/10 -tip] x86: check_powernow() for K7 " Jaswinder Singh Rajput
2009-05-12 19:06 ` [PATCH 3/10 -tip] x86: Add cpufeatures for Advanced Power Management Jaswinder Singh Rajput
2009-05-12 21:04 ` Thomas Gleixner
2009-05-13 8:57 ` Jaswinder Singh Rajput
2009-05-15 13:47 ` Jaswinder Singh Rajput
2009-05-17 12:17 ` Thomas Gleixner
2009-05-17 14:18 ` Jaswinder Singh Rajput
2009-05-19 15:01 ` Jaswinder Singh Rajput
2009-05-19 16:41 ` H. Peter Anvin
2009-05-20 7:15 ` Jaswinder Singh Rajput
2009-05-20 7:23 ` Jaswinder Singh Rajput
2009-05-20 18:30 ` H. Peter Anvin
2009-05-21 5:09 ` Jaswinder Singh Rajput
2009-05-13 6:27 ` Andreas Herrmann
2009-05-21 6:14 ` H. Peter Anvin
2009-05-21 6:11 ` [PATCH 1/10 -tip] x86: Add cpufeature for Processor Name H. Peter Anvin
2009-05-21 7:38 ` Jaswinder Singh Rajput
2009-05-21 20:09 ` H. Peter Anvin
2009-05-12 20:15 ` [git-pull -tip][PATCH 0/10] few cpufeature additions and users Jaswinder Singh Rajput
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