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x86: enable PAT for amd k8 and fam10h

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make known_pat_cpu to think amd k8 and fam10h is ok too.

also make tom2 below to be WRBACK

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
2008-03-24 16:02:01 -07:00
committed by Ingo Molnar
parent 52783fa8d6
commit 35605a1027
4 changed files with 25 additions and 1 deletions
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6
arch/x86/mm/pat.c
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@@ -47,6 +47,12 @@ static int pat_known_cpu(void)
return 1;
}
}
if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
boot_cpu_data.x86 >= 0xf && boot_cpu_data.x86 <= 0x11) {
if (cpu_has_pat) {
return 1;
}
}
pat_wc_enabled = 0;
printk(KERN_INFO "CPU and/or kernel does not support PAT.\n");