9c709f3b62
This factors some things defined in both pgtable-ppc32.h and pgtable-ppc64.h into the common part of asm-powerpc/pgtable.h. These are all things which have essentially identical definitions, and which by their nature are very unlikely ever to need different definitions in the two cases. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#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 */
|