| #ifndef _ASM_POWERPC_PGTABLE_H | |
| #define _ASM_POWERPC_PGTABLE_H | |
| #ifdef __KERNEL__ | |
| #ifndef __ASSEMBLY__ | |
| #include <asm/processor.h> /* For TASK_SIZE */ | |
| #include <asm/mmu.h> | |
| #include <asm/page.h> | |
| struct mm_struct; | |
| #endif /* !__ASSEMBLY__ */ | |
| #if defined(CONFIG_PPC64) | |
| # include <asm/pgtable-ppc64.h> | |
| #else | |
| # include <asm/pgtable-ppc32.h> | |
| #endif | |
| #ifndef __ASSEMBLY__ | |
| /* | |
| * ZERO_PAGE is a global shared page that is always zero: used | |
| * for zero-mapped memory areas etc.. | |
| */ | |
| extern unsigned long empty_zero_page[]; | |
| #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) | |
| extern pgd_t swapper_pg_dir[]; | |
| extern void paging_init(void); | |
| /* | |
| * kern_addr_valid is intended to indicate whether an address is a valid | |
| * kernel address. Most 32-bit archs define it as always true (like this) | |
| * but most 64-bit archs actually perform a test. What should we do here? | |
| */ | |
| #define kern_addr_valid(addr) (1) | |
| #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ | |
| remap_pfn_range(vma, vaddr, pfn, size, prot) | |
| #include <asm-generic/pgtable.h> | |
| #endif /* __ASSEMBLY__ */ | |
| #endif /* __KERNEL__ */ | |
| #endif /* _ASM_POWERPC_PGTABLE_H */ |