kernel-ark/include/asm-powerpc/page_32.h
Arnd Bergmann 88ced03149 [PATCH] powerpc: sanitize header files for user space includes
include/asm-ppc/ had #ifdef __KERNEL__ in all header files that
are not meant for use by user space, include/asm-powerpc does
not have this yet.

This patch gets us a lot closer there. There are a few cases
where I was not sure, so I left them out. I have verified
that no CONFIG_* symbols are used outside of __KERNEL__
any more and that there are no obvious compile errors when
including any of the headers in user space libraries.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09 15:13:08 +11:00

43 lines
1.0 KiB
C

#ifndef _ASM_POWERPC_PAGE_32_H
#define _ASM_POWERPC_PAGE_32_H
#ifdef __KERNEL__
#define VM_DATA_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS32
#define PPC_MEMSTART 0
#ifndef __ASSEMBLY__
/*
* The basic type of a PTE - 64 bits for those CPUs with > 32 bit
* physical addressing. For now this just the IBM PPC440.
*/
#ifdef CONFIG_PTE_64BIT
typedef unsigned long long pte_basic_t;
#define PTE_SHIFT (PAGE_SHIFT - 3) /* 512 ptes per page */
#define PTE_FMT "%16Lx"
#else
typedef unsigned long pte_basic_t;
#define PTE_SHIFT (PAGE_SHIFT - 2) /* 1024 ptes per page */
#define PTE_FMT "%.8lx"
#endif
struct page;
extern void clear_pages(void *page, int order);
static inline void clear_page(void *page) { clear_pages(page, 0); }
extern void copy_page(void *to, void *from);
/* Pure 2^n version of get_order */
extern __inline__ int get_order(unsigned long size)
{
int lz;
size = (size-1) >> PAGE_SHIFT;
asm ("cntlzw %0,%1" : "=r" (lz) : "r" (size));
return 32 - lz;
}
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_PAGE_32_H */