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authorYinghai Lu <yhlu.kernel.send@gmail.com>2008-03-24 23:24:34 -0700
committerIngo Molnar <mingo@elte.hu>2008-04-17 17:41:20 +0200
commit9307cacad0dfe3749f00303125c6f7f0523e5616 (patch)
treebc28bf08dc18dacbb2654a9a368f4e09c580dfab /arch/x86/mm
parenta7c7d0e91daebd7c5e51f9416d612b6a15e7e79a (diff)
x86: pat cpu feature bit setting for known cpus
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/pat.c15
1 files changed, 2 insertions, 13 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 0648a2225b0..72c0f609740 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -40,19 +40,8 @@ static int pat_known_cpu(void)
if (!pat_wc_enabled)
return 0;
- if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
- (boot_cpu_data.x86 == 0xF ||
- (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model >= 15))) {
- if (cpu_has_pat) {
- 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;
- }
- }
+ if (cpu_has_pat)
+ return 1;
pat_wc_enabled = 0;
printk(KERN_INFO "CPU and/or kernel does not support PAT.\n");