3 files changed, 8 insertions, 8 deletions
diff --git a/arch/i386/kernel/cpu/mtrr/cyrix.c b/arch/i386/kernel/cpu/mtrr/cyrix.c
index 9edf5625584..1001f1e0fe6 100644
--- a/arch/i386/kernel/cpu/mtrr/cyrix.c
+++ b/arch/i386/kernel/cpu/mtrr/cyrix.c
@@ -233,12 +233,12 @@ typedef struct {
 	mtrr_type type;
 } arr_state_t;
 
-static arr_state_t arr_state[8] __devinitdata = {
+static arr_state_t arr_state[8] = {
 	{0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL},
 	{0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}, {0UL, 0UL, 0UL}
 };
 
-static unsigned char ccr_state[7] __devinitdata = { 0, 0, 0, 0, 0, 0, 0 };
+static unsigned char ccr_state[7] = { 0, 0, 0, 0, 0, 0, 0 };
 
 static void cyrix_set_all(void)
 {
diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c
index 6d5937891b4..f6e46943e6e 100644
--- a/arch/i386/kernel/cpu/mtrr/generic.c
+++ b/arch/i386/kernel/cpu/mtrr/generic.c
@@ -65,7 +65,8 @@ get_fixed_ranges(mtrr_type * frs)
 
 void mtrr_save_fixed_ranges(void *info)
 {
-	get_fixed_ranges(mtrr_state.fixed_ranges);
+	if (cpu_has_mtrr)
+		get_fixed_ranges(mtrr_state.fixed_ranges);
 }
 
 static void print_fixed(unsigned base, unsigned step, const mtrr_type*types)
@@ -469,11 +470,6 @@ int generic_validate_add_page(unsigned long base, unsigned long size, unsigned i
 		}
 	}
 
-	if (base < 0x100) {
-		printk(KERN_WARNING "mtrr: cannot set region below 1 MiB (0x%lx000,0x%lx000)\n",
-		       base, size);
-		return -EINVAL;
-	}
 	/*  Check upper bits of base and last are equal and lower bits are 0
 	    for base and 1 for last  */
 	last = base + size - 1;
diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c
index 55b005152a1..75dc6d5214b 100644
--- a/arch/i386/kernel/cpu/mtrr/main.c
+++ b/arch/i386/kernel/cpu/mtrr/main.c
@@ -229,6 +229,8 @@ static void set_mtrr(unsigned int reg, unsigned long base,
 	data.smp_size = size;
 	data.smp_type = type;
 	atomic_set(&data.count, num_booting_cpus() - 1);
+	/* make sure data.count is visible before unleashing other CPUs */
+	smp_wmb();
 	atomic_set(&data.gate,0);
 
 	/*  Start the ball rolling on other CPUs  */
@@ -242,6 +244,7 @@ static void set_mtrr(unsigned int reg, unsigned long base,
 
 	/* ok, reset count and toggle gate */
 	atomic_set(&data.count, num_booting_cpus() - 1);
+	smp_wmb();
 	atomic_set(&data.gate,1);
 
 	/* do our MTRR business */
@@ -260,6 +263,7 @@ static void set_mtrr(unsigned int reg, unsigned long base,
 		cpu_relax();
 
 	atomic_set(&data.count, num_booting_cpus() - 1);
+	smp_wmb();
 	atomic_set(&data.gate,0);
 
 	/*