X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-alpha%2Fpage.h;h=fca1bc7479620272c737899d3037af3d199b126e;hb=refs%2Fheads%2Fvserver;hp=2602b3685fe5732f9744ae538c0f83f01b861c56;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/include/asm-alpha/page.h b/include/asm-alpha/page.h index 2602b3685..fca1bc747 100644 --- a/include/asm-alpha/page.h +++ b/include/asm-alpha/page.h @@ -1,6 +1,8 @@ #ifndef _ALPHA_PAGE_H #define _ALPHA_PAGE_H +#ifdef __KERNEL__ + #include /* PAGE_SHIFT determines the page size */ @@ -8,8 +10,6 @@ #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) -#ifdef __KERNEL__ - #ifndef __ASSEMBLY__ #define STRICT_MM_TYPECHECKS @@ -17,6 +17,9 @@ extern void clear_page(void *page); #define clear_user_page(page, vaddr, pg) clear_page(page) +#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vmaddr) +#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE + extern void copy_page(void * _to, void * _from); #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) @@ -59,24 +62,13 @@ typedef unsigned long pgprot_t; #endif /* STRICT_MM_TYPECHECKS */ -/* Pure 2^n version of get_order */ -extern __inline__ int get_order(unsigned long size) -{ - int order; - - size = (size-1) >> (PAGE_SHIFT-1); - order = -1; - do { - size >>= 1; - order++; - } while (size); - return order; -} - -#endif /* !__ASSEMBLY__ */ +#ifdef USE_48_BIT_KSEG +#define PAGE_OFFSET 0xffff800000000000UL +#else +#define PAGE_OFFSET 0xfffffc0000000000UL +#endif -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) +#else #ifdef USE_48_BIT_KSEG #define PAGE_OFFSET 0xffff800000000000 @@ -84,11 +76,14 @@ extern __inline__ int get_order(unsigned long size) #define PAGE_OFFSET 0xfffffc0000000000 #endif +#endif /* !__ASSEMBLY__ */ + +/* to align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) + #define __pa(x) ((unsigned long) (x) - PAGE_OFFSET) #define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET)) #ifndef CONFIG_DISCONTIGMEM -#define pfn_to_page(pfn) (mem_map + (pfn)) -#define page_to_pfn(page) ((unsigned long)((page) - mem_map)) #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) #define pfn_valid(pfn) ((pfn) < max_mapnr) @@ -98,6 +93,10 @@ extern __inline__ int get_order(unsigned long size) #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -#endif /* __KERNEL__ */ +#define devmem_is_allowed(x) 1 +#include +#include + +#endif /* __KERNEL__ */ #endif /* _ALPHA_PAGE_H */