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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2009-09-10 10:09:38 -0700
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2009-09-10 11:48:55 -0700
commit78c86e5e5691fc84d5fbea0cd4ac7147e87b7490 (patch)
treeaa10df4a64505332ec093d909fa0999764ac4d66 /arch/x86/mm/physaddr.h
parent2496afbf1e50c70f80992656bcb730c8583ddac3 (diff)
x86: split __phys_addr out into separate file
Split __phys_addr out into its own file so we can disable -fstack-protector in a fine-grained fashion. Also it doesn't have terribly much to do with the rest of ioremap.c. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'arch/x86/mm/physaddr.h')
-rw-r--r--arch/x86/mm/physaddr.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/mm/physaddr.h b/arch/x86/mm/physaddr.h
new file mode 100644
index 00000000000..a3cd5a0c97b
--- /dev/null
+++ b/arch/x86/mm/physaddr.h
@@ -0,0 +1,10 @@
+#include <asm/processor.h>
+
+static inline int phys_addr_valid(resource_size_t addr)
+{
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ return !(addr >> boot_cpu_data.x86_phys_bits);
+#else
+ return 1;
+#endif
+}