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authorJan Beulich <jbeulich@novell.com>2009-03-12 12:37:34 +0000
committerIngo Molnar <mingo@elte.hu>2009-03-13 02:37:17 +0100
commit13c6c53282d99c82e79b02477efd2c1e30a991ef (patch)
tree71c7b82f94e23ead15f49e4081937bd8d748cef5 /arch/x86/mm/ioremap.c
parent46d50c98d90cd7feaa5977a09c574063e5c99b3d (diff)
x86, 32-bit: also use cpuinfo_x86's x86_{phys,virt}_bits members
Impact: 32/64-bit consolidation In a first step, this allows fixing phys_addr_valid() for PAE (which until now reported all addresses to be valid). Subsequently, this will also allow simplifying some MTRR handling code. Signed-off-by: Jan Beulich <jbeulich@novell.com> LKML-Reference: <49B9101E.76E4.0078.0@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mm/ioremap.c')
-rw-r--r--arch/x86/mm/ioremap.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index aca924a30ee..83ed74affba 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) {
@@ -65,11 +69,6 @@ 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)
{