forked from luck/tmp_suning_uos_patched
ef55d53caa
Provide ilog2() fallbacks for powerpc for 32-bit numbers and 64-bit numbers on ppc64. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
35 lines
888 B
C
35 lines
888 B
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);
|
|
|
|
#include <asm-generic/page.h>
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_POWERPC_PAGE_32_H */
|