diff options
Diffstat (limited to 'include/asm-sparc/page.h')
| -rw-r--r-- | include/asm-sparc/page.h | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/include/asm-sparc/page.h b/include/asm-sparc/page.h index 2cd6512b4..922f5e5e9 100644 --- a/include/asm-sparc/page.h +++ b/include/asm-sparc/page.h @@ -1,4 +1,4 @@ -/* $Id: page.h,v 1.37 1997/11/28 15:59:21 jj Exp $ +/* $Id: page.h,v 1.40 1998/02/06 14:14:46 jj Exp $ * page.h: Various defines and such for MMU operations on the Sparc for * the Linux kernel. * @@ -8,7 +8,12 @@ #ifndef _SPARC_PAGE_H #define _SPARC_PAGE_H +#include <linux/config.h> +#ifdef CONFIG_SUN4 +#define PAGE_SHIFT 13 +#else #define PAGE_SHIFT 12 +#endif #define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) @@ -16,6 +21,10 @@ #include <linux/config.h> #include <asm/head.h> /* for KERNBASE */ +#include <asm/btfixup.h> + +/* This is always 2048*sizeof(long), doesn't change with PAGE_SIZE */ +#define TASK_UNION_SIZE 8192 #ifndef __ASSEMBLY__ @@ -24,11 +33,20 @@ extern unsigned long page_offset; -#define PAGE_OFFSET (page_offset) +BTFIXUPDEF_SETHI_INIT(page_offset,0xf0000000) + +#ifdef MODULE +#define PAGE_OFFSET (page_offset) +#else +#define PAGE_OFFSET BTFIXUP_SETHI(page_offset) +#endif /* translate between physical and virtual addresses */ -extern unsigned long (*mmu_v2p)(unsigned long); -extern unsigned long (*mmu_p2v)(unsigned long); +BTFIXUPDEF_CALL_CONST(unsigned long, mmu_v2p, unsigned long) +BTFIXUPDEF_CALL_CONST(unsigned long, mmu_p2v, unsigned long) + +#define mmu_v2p(vaddr) BTFIXUP_CALL(mmu_v2p)(vaddr) +#define mmu_p2v(paddr) BTFIXUP_CALL(mmu_p2v)(paddr) #define __pa(x) (mmu_v2p((unsigned long)(x))) #define __va(x) ((void *)(mmu_p2v((unsigned long)(x)))) @@ -248,7 +266,9 @@ typedef unsigned long iopgprot_t; extern unsigned long sparc_unmapped_base; -#define TASK_UNMAPPED_BASE (sparc_unmapped_base) +BTFIXUPDEF_SETHI(sparc_unmapped_base) + +#define TASK_UNMAPPED_BASE BTFIXUP_SETHI(sparc_unmapped_base) /* to align the pointer to the (next) page boundary */ #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) |