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- #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 */
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