1 files changed, 26 insertions, 26 deletions

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 433f7bd4648a..0dfa09d69e80 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -22,13 +22,17 @@
 #include <asm/pgalloc.h>
 #include <asm/pat.h>
 
-#ifdef CONFIG_X86_64
-
-static inline int phys_addr_valid(unsigned long addr)
+static inline int phys_addr_valid(resource_size_t addr)
 {
-        return addr < (1UL << boot_cpu_data.x86_phys_bits);
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+        return !(addr >> boot_cpu_data.x86_phys_bits);
+#else
+        return 1;
+#endif
 }
 
+#ifdef CONFIG_X86_64
+
 unsigned long __phys_addr(unsigned long x)
 {
         if (x >= __START_KERNEL_map) {
@@ -38,8 +42,7 @@ unsigned long __phys_addr(unsigned long x)
         } else {
                 VIRTUAL_BUG_ON(x < PAGE_OFFSET);
                 x -= PAGE_OFFSET;
-                VIRTUAL_BUG_ON(system_state == SYSTEM_BOOTING ? x > MAXMEM :
-                                        !phys_addr_valid(x));
+                VIRTUAL_BUG_ON(!phys_addr_valid(x));
         }
         return x;
 }
@@ -56,10 +59,8 @@ bool __virt_addr_valid(unsigned long x)
                 if (x < PAGE_OFFSET)
                         return false;
                 x -= PAGE_OFFSET;
-                if (system_state == SYSTEM_BOOTING ?
-                                x > MAXMEM : !phys_addr_valid(x)) {
+                if (!phys_addr_valid(x))
                         return false;
-                }
         }
 
         return pfn_valid(x >> PAGE_SHIFT);
@@ -68,18 +69,12 @@ EXPORT_SYMBOL(__virt_addr_valid);
 
 #else
 
-static inline int phys_addr_valid(unsigned long addr)
-{
-        return 1;
-}
-
 #ifdef CONFIG_DEBUG_VIRTUAL
 unsigned long __phys_addr(unsigned long x)
 {
-        /* VMALLOC_* aren't constants; not available at the boot time */
+        /* VMALLOC_* aren't constants  */
         VIRTUAL_BUG_ON(x < PAGE_OFFSET);
-        VIRTUAL_BUG_ON(system_state != SYSTEM_BOOTING &&
-                is_vmalloc_addr((void *) x));
+        VIRTUAL_BUG_ON(__vmalloc_start_set && is_vmalloc_addr((void *) x));
         return x - PAGE_OFFSET;
 }
 EXPORT_SYMBOL(__phys_addr);
@@ -89,7 +84,9 @@ bool __virt_addr_valid(unsigned long x)
 {
         if (x < PAGE_OFFSET)
                 return false;
-        if (system_state != SYSTEM_BOOTING && is_vmalloc_addr((void *) x))
+        if (__vmalloc_start_set && is_vmalloc_addr((void *) x))
+                return false;
+        if (x >= FIXADDR_START)
                 return false;
         return pfn_valid((x - PAGE_OFFSET) >> PAGE_SHIFT);
 }
@@ -508,13 +505,19 @@ static inline pte_t * __init early_ioremap_pte(unsigned long addr)
         return &bm_pte[pte_index(addr)];
 }
 
+static unsigned long slot_virt[FIX_BTMAPS_SLOTS] __initdata;
+
 void __init early_ioremap_init(void)
 {
         pmd_t *pmd;
+        int i;
 
         if (early_ioremap_debug)
                 printk(KERN_INFO "early_ioremap_init()\n");
 
+        for (i = 0; i < FIX_BTMAPS_SLOTS; i++)
+                slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i);
+
         pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
         memset(bm_pte, 0, sizeof(bm_pte));
         pmd_populate_kernel(&init_mm, pmd, bm_pte);
@@ -581,6 +584,7 @@ static inline void __init early_clear_fixmap(enum fixed_addresses idx)
 
 static void __iomem *prev_map[FIX_BTMAPS_SLOTS] __initdata;
 static unsigned long prev_size[FIX_BTMAPS_SLOTS] __initdata;
+
 static int __init check_early_ioremap_leak(void)
 {
         int count = 0;
@@ -602,7 +606,8 @@ static int __init check_early_ioremap_leak(void)
 }
 late_initcall(check_early_ioremap_leak);
 
-static void __init __iomem *__early_ioremap(unsigned long phys_addr, unsigned long size, pgprot_t prot)
+static void __init __iomem *
+__early_ioremap(unsigned long phys_addr, unsigned long size, pgprot_t prot)
 {
         unsigned long offset, last_addr;
         unsigned int nrpages;
@@ -668,9 +673,9 @@ static void __init __iomem *__early_ioremap(unsigned long phys_addr, unsigned lo
                 --nrpages;
         }
         if (early_ioremap_debug)
-                printk(KERN_CONT "%08lx + %08lx\n", offset, fix_to_virt(idx0));
+                printk(KERN_CONT "%08lx + %08lx\n", offset, slot_virt[slot]);
 
-        prev_map[slot] = (void __iomem *)(offset + fix_to_virt(idx0));
+        prev_map[slot] = (void __iomem *)(offset + slot_virt[slot]);
         return prev_map[slot];
 }
 
@@ -738,8 +743,3 @@ void __init early_iounmap(void __iomem *addr, unsigned long size)
         }
         prev_map[slot] = NULL;
 }
-
-void __this_fixmap_does_not_exist(void)
-{
-        WARN_ON(1);
-}