diff options
Diffstat (limited to 'arch/sh/include/asm/page.h')
| -rw-r--r-- | arch/sh/include/asm/page.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/sh/include/asm/page.h b/arch/sh/include/asm/page.h index c4e0b3d472b..15d970328f7 100644 --- a/arch/sh/include/asm/page.h +++ b/arch/sh/include/asm/page.h @@ -113,6 +113,16 @@ typedef struct page *pgtable_t; #define __MEMORY_SIZE CONFIG_MEMORY_SIZE /* + * PHYSICAL_OFFSET is the offset in physical memory where the base + * of the kernel is loaded. + */ +#ifdef CONFIG_PHYSICAL_START +#define PHYSICAL_OFFSET (CONFIG_PHYSICAL_START - __MEMORY_START) +#else +#define PHYSICAL_OFFSET 0 +#endif + +/* * PAGE_OFFSET is the virtual address of the start of kernel address * space. */ @@ -141,8 +151,13 @@ typedef struct page *pgtable_t; #endif /* !__ASSEMBLY__ */ #ifdef CONFIG_UNCACHED_MAPPING +#if defined(CONFIG_29BIT) +#define UNCAC_ADDR(addr) P2SEGADDR(addr) +#define CAC_ADDR(addr) P1SEGADDR(addr) +#else #define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + uncached_start) #define CAC_ADDR(addr) ((addr) - uncached_start + PAGE_OFFSET) +#endif #else #define UNCAC_ADDR(addr) ((addr)) #define CAC_ADDR(addr) ((addr)) @@ -186,7 +201,7 @@ typedef struct page *pgtable_t; /* * While BYTES_PER_WORD == 4 on the current sh64 ABI, GCC will still * happily generate {ld/st}.q pairs, requiring us to have 8-byte - * alignment to avoid traps. The kmalloc alignment is gauranteed by + * alignment to avoid traps. The kmalloc alignment is guaranteed by * virtue of L1_CACHE_BYTES, requiring this to only be special cased * for slab caches. */ |