[POWERPC] spufs: lockdep annotations for spufs_dir_close

[linux-2.6] / arch / x86 / kernel / cpu / mtrr / main.c

diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index 1e27b69a7a0eca1750e4c16dd2470e49ab706112..6a1e278d93230de4da44549cf537a33b5b3ff441 100644 (file)
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -43,6 +43,7 @@
 #include <asm/uaccess.h>
 #include <asm/processor.h>
 #include <asm/msr.h>
+#include <asm/kvm_para.h>
 #include "mtrr.h"
 
 u32 num_var_ranges = 0;
@@ -626,7 +627,7 @@ early_param("disable_mtrr_trim", disable_mtrr_trim_setup);
 #define Tom2Enabled (1U << 21)
 #define Tom2ForceMemTypeWB (1U << 22)
 
-static __init int amd_special_default_mtrr(void)
+int __init amd_special_default_mtrr(void)
 {
        u32 l, h;
 
@@ -649,6 +650,7 @@ static __init int amd_special_default_mtrr(void)
 
 /**
  * mtrr_trim_uncached_memory - trim RAM not covered by MTRRs
+ * @end_pfn: ending page frame number
  *
  * Some buggy BIOSes don't setup the MTRRs properly for systems with certain
  * memory configurations.  This routine checks that the highest MTRR matches
@@ -659,7 +661,7 @@ static __init int amd_special_default_mtrr(void)
  */
 int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
 {
-       unsigned long i, base, size, highest_addr = 0, def, dummy;
+       unsigned long i, base, size, highest_pfn = 0, def, dummy;
        mtrr_type type;
        u64 trim_start, trim_size;
 
@@ -682,32 +684,35 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
                mtrr_if->get(i, &base, &size, &type);
                if (type != MTRR_TYPE_WRBACK)
                        continue;
-               base <<= PAGE_SHIFT;
-               size <<= PAGE_SHIFT;
-               if (highest_addr < base + size)
-                       highest_addr = base + size;
+               if (highest_pfn < base + size)
+                       highest_pfn = base + size;
        }
 
        /* kvm/qemu doesn't have mtrr set right, don't trim them all */
-       if (!highest_addr) {
-               printk(KERN_WARNING "WARNING: strange, CPU MTRRs all blank?\n");
-               WARN_ON(1);
+       if (!highest_pfn) {
+               if (!kvm_para_available()) {
+                       printk(KERN_WARNING
+                               "WARNING: strange, CPU MTRRs all blank?\n");
+                       WARN_ON(1);
+               }
                return 0;
        }
 
-       if ((highest_addr >> PAGE_SHIFT) < end_pfn) {
+       if (highest_pfn < end_pfn) {
                printk(KERN_WARNING "WARNING: BIOS bug: CPU MTRRs don't cover"
-                       " all of memory, losing %LdMB of RAM.\n",
-                       (((u64)end_pfn << PAGE_SHIFT) - highest_addr) >> 20);
+                       " all of memory, losing %luMB of RAM.\n",
+                       (end_pfn - highest_pfn) >> (20 - PAGE_SHIFT));
 
                WARN_ON(1);
 
                printk(KERN_INFO "update e820 for mtrr\n");
-               trim_start = highest_addr;
+               trim_start = highest_pfn;
+               trim_start <<= PAGE_SHIFT;
                trim_size = end_pfn;
                trim_size <<= PAGE_SHIFT;
                trim_size -= trim_start;
-               add_memory_region(trim_start, trim_size, E820_RESERVED);
+               update_memory_range(trim_start, trim_size, E820_RAM,
+                                       E820_RESERVED);
                update_e820();
                return 1;
        }