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x86: pat cpu feature bit setting for known cpus

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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 23:24:34 -07:00
committed by Ingo Molnar
parent a7c7d0e91d
commit 9307cacad0
3 changed files with 34 additions and 13 deletions
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25
arch/x86/kernel/cpu/common.c
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@@ -309,6 +309,19 @@ static void __cpuinit early_get_cap(struct cpuinfo_x86 *c)
}
clear_cpu_cap(c, X86_FEATURE_PAT);
switch (c->x86_vendor) {
case X86_VENDOR_AMD:
if (c->x86 >= 0xf && c->x86 <= 0x11)
set_cpu_cap(c, X86_FEATURE_PAT);
break;
case X86_VENDOR_INTEL:
if (c->x86 == 0xF || (c->x86 == 6 && c->x86_model >= 15))
set_cpu_cap(c, X86_FEATURE_PAT);
break;
}
}
/*
@@ -397,6 +410,18 @@ static void __cpuinit generic_identify(struct cpuinfo_x86 *c)
init_scattered_cpuid_features(c);
}
clear_cpu_cap(c, X86_FEATURE_PAT);
switch (c->x86_vendor) {
case X86_VENDOR_AMD:
if (c->x86 >= 0xf && c->x86 <= 0x11)
set_cpu_cap(c, X86_FEATURE_PAT);
break;
case X86_VENDOR_INTEL:
if (c->x86 == 0xF || (c->x86 == 6 && c->x86_model >= 15))
set_cpu_cap(c, X86_FEATURE_PAT);
break;
}
}
static void __cpuinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)