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[PATCH] All Transmeta CPUs have constant TSCs

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From: H. Peter Anvin <hpa@...>
To: <akpm@...>, <hpa@...>, <linux-kernel@...>
Subject: [PATCH] All Transmeta CPUs have constant TSCs
Date: Thursday, January 4, 2007 - 9:48 pm

[i386] All Transmeta CPUs have constant TSCs

All Transmeta CPUs ever produced have constant-rate TSCs.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

---
commit 07e54489ef8a3341b20ae42b53b1254a68061204
tree 204fa19fe2b2dd3ddb1add83ec66ccda7360f4e6
parent 7523c4dd9923cab748dad9b79d0165e118e3d03b
author H. Peter Anvin <hpa@zytor.com> Thu, 04 Jan 2007 17:44:34 -0800
committer H. Peter Anvin <hpa@zytor.com> Thu, 04 Jan 2007 17:44:34 -0800

 arch/i386/kernel/cpu/transmeta.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/i386/kernel/cpu/transmeta.c b/arch/i386/kernel/cpu/transmeta.c
index 4056fb7..b536e81 100644
--- a/arch/i386/kernel/cpu/transmeta.c
+++ b/arch/i386/kernel/cpu/transmeta.c
@@ -72,6 +72,9 @@ static void __cpuinit init_transmeta(struct cpuinfo_x86 *c)
 	wrmsr(0x80860004, ~0, uk);
 	c->x86_capability[0] = cpuid_edx(0x00000001);
 	wrmsr(0x80860004, cap_mask, uk);
+
+	/* All Transmeta CPUs have a constant TSC */
+	set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
 	
 	/* If we can run i686 user-space code, call us an i686 */
 #define USER686 (X86_FEATURE_TSC|X86_FEATURE_CX8|X86_FEATURE_CMOV)
-
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Messages in current thread:
[PATCH] All Transmeta CPUs have constant TSCs, H. Peter Anvin, (Thu Jan 4, 9:48 pm)
Re: [PATCH] All Transmeta CPUs have constant TSCs, Jan Engelhardt, (Fri Jan 5, 10:25 am)
Re: [PATCH] All Transmeta CPUs have constant TSCs, dean gaudet, (Mon Jan 8, 4:02 am)
Re: [PATCH] All Transmeta CPUs have constant TSCs, Jan Engelhardt, (Mon Jan 8, 4:19 pm)
Re: [PATCH] All Transmeta CPUs have constant TSCs, Chris Friesen, (Mon Jan 8, 4:51 pm)
Re: [PATCH] All Transmeta CPUs have constant TSCs, H. Peter Anvin, (Mon Jan 8, 4:51 pm)
Re: [PATCH] All Transmeta CPUs have constant TSCs, dean gaudet, (Mon Jan 8, 7:13 pm)
Re: [PATCH] All Transmeta CPUs have constant TSCs, H. Peter Anvin, (Mon Jan 8, 7:54 pm)