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-rw-r--r--arch/x86/kernel/cpu/mtrr/mtrr.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
index 54347e9a95c0..fb74a2c20814 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
@@ -12,6 +12,7 @@
#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
#define NUM_FIXED_RANGES 88
+#define MAX_VAR_RANGES 256
#define MTRRfix64K_00000_MSR 0x250
#define MTRRfix16K_80000_MSR 0x258
#define MTRRfix16K_A0000_MSR 0x259
@@ -32,6 +33,8 @@
an 8 bit field: */
typedef u8 mtrr_type;
+extern unsigned int mtrr_usage_table[MAX_VAR_RANGES];
+
struct mtrr_ops {
u32 vendor;
u32 use_intel_if;
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