diff options
| author | Helge Deller <deller@parisc-linux.org> | 2006-04-20 20:40:23 +0000 |
|---|---|---|
| committer | Kyle McMartin <kyle@hera.kernel.org> | 2006-04-21 22:20:34 +0000 |
| commit | 2fd83038160531245099c3c5b3511fa4b80765eb (patch) | |
| tree | 6145a9e78723c76ceac722eb60267c0116983c12 /include/asm-parisc/page.h | |
| parent | d668da80d613def981c573354e1853e38bd0698d (diff) | |
[PARISC] Further work for multiple page sizes
More work towards supporing multiple page sizes on 64-bit. Convert
some assumptions that 64bit uses 3 level page tables into testing
PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups
to assembler.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'include/asm-parisc/page.h')
| -rw-r--r-- | include/asm-parisc/page.h | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h index 45e02aa5bf4b..c0dd461fb8f1 100644 --- a/include/asm-parisc/page.h +++ b/include/asm-parisc/page.h @@ -1,13 +1,30 @@ #ifndef _PARISC_PAGE_H #define _PARISC_PAGE_H -/* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 12 -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) +#if !defined(__KERNEL__) +/* this is for userspace applications (4k page size) */ +# define PAGE_SHIFT 12 /* 4k */ +# define PAGE_SIZE (1UL << PAGE_SHIFT) +# define PAGE_MASK (~(PAGE_SIZE-1)) +#endif + #ifdef __KERNEL__ #include <linux/config.h> + +#if defined(CONFIG_PARISC_PAGE_SIZE_4KB) +# define PAGE_SHIFT 12 /* 4k */ +#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB) +# define PAGE_SHIFT 14 /* 16k */ +#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB) +# define PAGE_SHIFT 16 /* 64k */ +#else +# error "unknown default kernel page size" +#endif +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + + #ifndef __ASSEMBLY__ #include <asm/types.h> |