diff options
Diffstat (limited to 'arch/xtensa/include')
| -rw-r--r-- | arch/xtensa/include/asm/page.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/xtensa/include/asm/page.h b/arch/xtensa/include/asm/page.h index 11f7dc2..a5a5d33 100644 --- a/arch/xtensa/include/asm/page.h +++ b/arch/xtensa/include/asm/page.h @@ -14,6 +14,7 @@ #include <asm/processor.h> #include <asm/types.h> #include <asm/cache.h> +#include <platform/hardware.h> /* * Fixed TLB translations in the processor. @@ -150,9 +151,11 @@ extern void copy_user_page(void*, void*, unsigned long, struct page*); * addresses. */ +#define ARCH_PFN_OFFSET (PLATFORM_DEFAULT_MEM_START >> PAGE_SHIFT) + #define __pa(x) ((unsigned long) (x) - PAGE_OFFSET) #define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET)) -#define pfn_valid(pfn) ((unsigned long)pfn < max_mapnr) +#define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr) #ifdef CONFIG_DISCONTIGMEM # error CONFIG_DISCONTIGMEM not supported #endif |