cacheflush.h

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#ifndef _ASM_SCORE_CACHEFLUSH_H
#define _ASM_SCORE_CACHEFLUSH_H

/* Keep includes the same across arches. */
#include <linux/mm.h>

extern void flush_cache_all(void);
extern void flush_cache_mm(struct mm_struct *mm);
extern void flush_cache_range(struct vm_area_struct *vma,
                unsigned long start, unsigned long end);
extern void flush_cache_page(struct vm_area_struct *vma,
                unsigned long page, unsigned long pfn);
extern void flush_cache_sigtramp(unsigned long addr);
extern void flush_icache_all(void);
extern void flush_icache_range(unsigned long start, unsigned long end);
extern void flush_dcache_range(unsigned long start, unsigned long end);
extern void flush_dcache_page(struct page *page);

#define PG_dcache_dirty         PG_arch_1

#define flush_cache_dup_mm(mm)          do {} while (0)
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 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)

static inline void flush_icache_page(struct vm_area_struct *vma,
    struct page *page)
{
    if (vma->vm_flags & VM_EXEC) {
        void *v = page_address(page);
        flush_icache_range((unsigned long) v,
                (unsigned long) v + PAGE_SIZE);
    }
}

#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
    memcpy(dst, src, len)

#define copy_to_user_page(vma, page, vaddr, dst, src, len)  \
    do {                            \
        memcpy(dst, src, len);              \
        if ((vma->vm_flags & VM_EXEC))          \
            flush_cache_page(vma, vaddr, page_to_pfn(page));\
    } while (0)

#endif /* _ASM_SCORE_CACHEFLUSH_H */