From 2fd83038160531245099c3c5b3511fa4b80765eb Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Thu, 20 Apr 2006 20:40:23 +0000 Subject: [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 Signed-off-by: Kyle McMartin --- include/asm-parisc/page.h | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) (limited to 'include/asm-parisc/page.h') 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 + +#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 -- cgit v1.2.3-59-g8ed1b