Messages in this thread Patch in this message |  | | From | Andi Kleen <> | | Subject | [PATCH for 2.6.14] i386: Don't discard upper 32bits of HWCR on K8 | | Date | Tue, 11 Oct 2005 01:28:33 +0200 |
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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: Andi Kleen <ak@suse.de>
Index: linux/arch/i386/kernel/cpu/amd.c =================================================================== --- linux.orig/arch/i386/kernel/cpu/amd.c +++ linux/arch/i386/kernel/cpu/amd.c @@ -29,7 +29,7 @@ static void __init init_amd(struct cpuin int r; #ifdef CONFIG_SMP - unsigned long value; + unsigned long long value; /* Disable TLB flush filter by setting HWCR.FFDIS on K8 * bit 6 of msr C001_0015 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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