Commit 3c92c2ba authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds

[PATCH] i386: Don't discard upper 32bits of HWCR on K8

Need to use long long, not long when RMWing a MSR. I think
it's harmless right now, but still should be better fixed
if AMD adds any bits in the upper 32bit of HWCR.

Bug was introduced with the TLB flush filter fix for i386
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 421c7ce6
...@@ -29,7 +29,7 @@ static void __init init_amd(struct cpuinfo_x86 *c) ...@@ -29,7 +29,7 @@ static void __init init_amd(struct cpuinfo_x86 *c)
int r; int r;
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
unsigned long value; unsigned long long value;
/* Disable TLB flush filter by setting HWCR.FFDIS on K8 /* Disable TLB flush filter by setting HWCR.FFDIS on K8
* bit 6 of msr C001_0015 * bit 6 of msr C001_0015
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment