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From: "H. Peter Anvin" <hpa@zytor.com>
To: akpm@osdl.org, hpa@zytor.com, linux-kernel@vger.kernel.org
Subject: [PATCH] All Transmeta CPUs have constant TSCs
Date: Thu, 4 Jan 2007 17:48:17 -0800	[thread overview]
Message-ID: <200701050148.l051mHGM005275@terminus.zytor.com> (raw)

[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)

             reply	other threads:[~2007-01-05  1:48 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-05  1:48 H. Peter Anvin [this message]
2007-01-05 14:25 ` Jan Engelhardt
2007-01-08  8:02   ` dean gaudet
2007-01-08 20:19     ` Jan Engelhardt
2007-01-08 20:51       ` Chris Friesen
2007-01-08 20:51       ` H. Peter Anvin
2007-01-08 23:13         ` dean gaudet
2007-01-08 23:54           ` H. Peter Anvin

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