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>

1 files changed, 2 insertions, 13 deletions

diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index 0648a2225b09..72c0f6097402 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");