mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
|
#ifndef _SPARC64_CACHEFLUSH_H
|
||
|
|
#define _SPARC64_CACHEFLUSH_H
|
||
|
|
|
||
|
|
#include <asm/page.h>
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
|
||
|
|
#include <linux/mm.h>
|
||
|
|
|
||
|
|
/* Cache flush operations. */
|
||
|
|
|
||
|
|
/* These are the same regardless of whether this is an SMP kernel or not. */
|
||
|
|
#define flush_cache_mm(__mm) \
|
||
|
|
do { if ((__mm) == current->mm) flushw_user(); } while(0)
|
||
|
|
#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
|
||
|
|
#define flush_cache_range(vma, start, end) \
|
||
|
|
flush_cache_mm((vma)->vm_mm)
|
||
|
|
#define flush_cache_page(vma, page, pfn) \
|
||
|
|
flush_cache_mm((vma)->vm_mm)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* On spitfire, the icache doesn't snoop local stores and we don't
|
||
|
|
* use block commit stores (which invalidate icache lines) during
|
||
|
|
* module load, so we need this.
|
||
|
|
*/
|
||
|
|
extern void flush_icache_range(unsigned long start, unsigned long end);
|
||
|
|
extern void __flush_icache_page(unsigned long);
|
||
|
|
|
||
|
|
extern void __flush_dcache_page(void *addr, int flush_icache);
|
||
|
|
extern void flush_dcache_page_impl(struct page *page);
|
||
|
|
#ifdef CONFIG_SMP
|
||
|
|
extern void smp_flush_dcache_page_impl(struct page *page, int cpu);
|
||
|
|
extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page);
|
||
|
|
#else
|
||
|
|
#define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page)
|
||
|
|
#define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
extern void __flush_dcache_range(unsigned long start, unsigned long end);
|
||
|
|
extern void flush_dcache_page(struct page *page);
|
||
|
|
|
||
|
|
#define flush_icache_page(vma, pg) do { } while(0)
|
||
|
|
#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
|
||
|
|
|
||
|
|
extern void flush_ptrace_access(struct vm_area_struct *, struct page *,
|
||
|
|
unsigned long uaddr, void *kaddr,
|
||
|
|
unsigned long len, int write);
|
||
|
|
|
||
|
|
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
|
||
|
|
do { \
|
||
|
|
flush_cache_page(vma, vaddr, page_to_pfn(page)); \
|
||
|
|
memcpy(dst, src, len); \
|
||
|
|
flush_ptrace_access(vma, page, vaddr, src, len, 0); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
|
||
|
|
do { \
|
||
|
|
flush_cache_page(vma, vaddr, page_to_pfn(page)); \
|
||
|
|
memcpy(dst, src, len); \
|
||
|
|
flush_ptrace_access(vma, page, vaddr, dst, len, 1); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#define flush_dcache_mmap_lock(mapping) do { } while (0)
|
||
|
|
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
|
||
|
|
|
||
|
|
#define flush_cache_vmap(start, end) do { } while (0)
|
||
|
|
#define flush_cache_vunmap(start, end) do { } while (0)
|
||
|
|
|
||
|
|
#ifdef CONFIG_DEBUG_PAGEALLOC
|
||
|
|
/* internal debugging function */
|
||
|
|
void kernel_map_pages(struct page *page, int numpages, int enable);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* !__ASSEMBLY__ */
|
||
|
|
|
||
|
|
#endif /* _SPARC64_CACHEFLUSH_H */
|