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-rw-r--r--arch/x86/include/asm/intel-family.h1
-rw-r--r--arch/x86/mm/pat/memtype.c6
2 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
index 51ea36656edd..6cd08da64684 100644
--- a/arch/x86/include/asm/intel-family.h
+++ b/arch/x86/include/asm/intel-family.h
@@ -193,6 +193,7 @@
/* Family 15 - NetBurst */
#define INTEL_P4_WILLAMETTE IFM(15, 0x01) /* Also Xeon Foster */
#define INTEL_P4_PRESCOTT IFM(15, 0x03)
+#define INTEL_P4_CEDARMILL IFM(15, 0x06) /* Also Xeon Dempsey */
/* Family 19 */
#define INTEL_PANTHERCOVE_X IFM(19, 0x01) /* Diamond Rapids */
diff --git a/arch/x86/mm/pat/memtype.c b/arch/x86/mm/pat/memtype.c
index feb8cc6a12bf..e40861c9cb90 100644
--- a/arch/x86/mm/pat/memtype.c
+++ b/arch/x86/mm/pat/memtype.c
@@ -43,6 +43,7 @@
#include <linux/fs.h>
#include <linux/rbtree.h>
+#include <asm/cpu_device_id.h>
#include <asm/cacheflush.h>
#include <asm/cacheinfo.h>
#include <asm/processor.h>
@@ -290,9 +291,8 @@ void __init pat_bp_init(void)
return;
}
- if ((c->x86_vendor == X86_VENDOR_INTEL) &&
- (((c->x86 == 0x6) && (c->x86_model <= 0xd)) ||
- ((c->x86 == 0xf) && (c->x86_model <= 0x6)))) {
+ if ((c->x86_vfm >= INTEL_PENTIUM_PRO && c->x86_vfm <= INTEL_PENTIUM_M_DOTHAN) ||
+ (c->x86_vfm >= INTEL_P4_WILLAMETTE && c->x86_vfm <= INTEL_P4_CEDARMILL)) {
/*
* PAT support with the lower four entries. Intel Pentium 2,
* 3, M, and 4 are affected by PAT errata, which makes the