diff options
Diffstat (limited to 'include/asm-ppc/page.h')
| -rw-r--r-- | include/asm-ppc/page.h | 44 |
1 files changed, 2 insertions, 42 deletions
diff --git a/include/asm-ppc/page.h b/include/asm-ppc/page.h index fe95c8258cf9..ad4c5a1bc9d6 100644 --- a/include/asm-ppc/page.h +++ b/include/asm-ppc/page.h @@ -97,62 +97,22 @@ extern void clear_user_page(void *page, unsigned long vaddr, struct page *pg); extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *pg); -#ifndef CONFIG_APUS #define PPC_MEMSTART 0 -#define PPC_PGSTART 0 #define PPC_MEMOFFSET PAGE_OFFSET -#else -extern unsigned long ppc_memstart; -extern unsigned long ppc_pgstart; -extern unsigned long ppc_memoffset; -#define PPC_MEMSTART ppc_memstart -#define PPC_PGSTART ppc_pgstart -#define PPC_MEMOFFSET ppc_memoffset -#endif -#if defined(CONFIG_APUS) && !defined(MODULE) -/* map phys->virtual and virtual->phys for RAM pages */ -static inline unsigned long ___pa(unsigned long v) -{ - unsigned long p; - asm volatile ("1: addis %0, %1, %2;" - ".section \".vtop_fixup\",\"aw\";" - ".align 1;" - ".long 1b;" - ".previous;" - : "=r" (p) - : "b" (v), "K" (((-PAGE_OFFSET) >> 16) & 0xffff)); - - return p; -} -static inline void* ___va(unsigned long p) -{ - unsigned long v; - asm volatile ("1: addis %0, %1, %2;" - ".section \".ptov_fixup\",\"aw\";" - ".align 1;" - ".long 1b;" - ".previous;" - : "=r" (v) - : "b" (p), "K" (((PAGE_OFFSET) >> 16) & 0xffff)); - - return (void*) v; -} -#else #define ___pa(vaddr) ((vaddr)-PPC_MEMOFFSET) #define ___va(paddr) ((paddr)+PPC_MEMOFFSET) -#endif extern int page_is_ram(unsigned long pfn); #define __pa(x) ___pa((unsigned long)(x)) #define __va(x) ((void *)(___va((unsigned long)(x)))) -#define ARCH_PFN_OFFSET (PPC_PGSTART) +#define ARCH_PFN_OFFSET 0 #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) #define page_to_virt(page) __va(page_to_pfn(page) << PAGE_SHIFT) -#define pfn_valid(pfn) (((pfn) - PPC_PGSTART) < max_mapnr) +#define pfn_valid(pfn) ((pfn) < max_mapnr) #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) /* Pure 2^n version of get_order */ |