satip-axe/kernel/arch/sh/include/asm/cacheflush.h
2015-03-26 17:24:57 +01:00

122 lines
4.1 KiB
C

#ifndef __ASM_SH_CACHEFLUSH_H
#define __ASM_SH_CACHEFLUSH_H
#ifdef __KERNEL__
#include <linux/mm.h>
#include <asm/l2_cacheflush.h>
/*
* Cache flushing:
*
* - flush_cache_all() flushes entire cache
* - flush_cache_mm(mm) flushes the specified mm context's cache lines
* - flush_cache_dup mm(mm) handles cache flushing when forking
* - flush_cache_page(mm, vmaddr, pfn) flushes a single page
* - flush_cache_range(vma, start, end) flushes a range of pages
*
* - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
* - flush_icache_range(start, end) flushes(invalidates) a range for icache
* - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
* - flush_cache_sigtramp(vaddr) flushes the signal trampoline
*/
extern void (*local_flush_cache_all)(void *args);
extern void (*local_flush_cache_mm)(void *args);
extern void (*local_flush_cache_dup_mm)(void *args);
extern void (*local_flush_cache_page)(void *args);
extern void (*local_flush_cache_range)(void *args);
extern void (*local_flush_dcache_page)(void *args);
extern void (*local_flush_icache_range)(void *args);
extern void (*local_flush_icache_page)(void *args);
extern void (*local_flush_cache_sigtramp)(void *args);
static inline void cache_noop(void *args) { }
extern void (*__flush_wback_region)(void *start, int size);
extern void (*__flush_purge_region)(void *start, int size);
extern void (*__flush_invalidate_region)(void *start, int size);
extern void flush_cache_all(void);
extern void flush_cache_mm(struct mm_struct *mm);
extern void flush_cache_dup_mm(struct mm_struct *mm);
extern void flush_cache_page(struct vm_area_struct *vma,
unsigned long addr, unsigned long pfn);
extern void flush_cache_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end);
extern void flush_dcache_page(struct page *page);
extern void flush_icache_range(unsigned long start, unsigned long end);
extern void flush_icache_page(struct vm_area_struct *vma,
struct page *page);
extern void flush_cache_sigtramp(unsigned long address);
struct flusher_data {
struct vm_area_struct *vma;
unsigned long addr1, addr2;
};
#define ARCH_HAS_FLUSH_ANON_PAGE
extern void __flush_anon_page(struct page *page, unsigned long);
static inline void flush_anon_page(struct vm_area_struct *vma,
struct page *page, unsigned long vmaddr)
{
if (boot_cpu_data.dcache.n_aliases && PageAnon(page))
__flush_anon_page(page, vmaddr);
}
#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
void flush_kernel_dcache_page_addr(unsigned long addr);
static inline void flush_kernel_dcache_page(struct page *page)
{
flush_kernel_dcache_page_addr((unsigned long)page_address(page));
}
extern void copy_to_user_page(struct vm_area_struct *vma,
struct page *page, unsigned long vaddr, void *dst, const void *src,
unsigned long len);
extern void copy_from_user_page(struct vm_area_struct *vma,
struct page *page, unsigned long vaddr, void *dst, const void *src,
unsigned long len);
#define flush_cache_vmap(start, end) flush_cache_all()
#define flush_cache_vunmap(start, end) flush_cache_all()
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
static inline void flush_ioremap_region(unsigned long phys, void __iomem *virt,
unsigned offset, size_t size)
{
void *start = (void __force *)virt + offset;
__flush_purge_region(start, size);
__l2_flush_purge_phys(phys + offset, size);
}
static inline void writeback_ioremap_region(unsigned long phys, void __iomem *virt,
unsigned offset, size_t size)
{
void *start = (void __force *)virt + offset;
__flush_wback_region(start, size);
__l2_flush_wback_phys(phys + offset, size);
}
static inline void invalidate_ioremap_region(unsigned long phys, void __iomem *virt,
unsigned offset, size_t size)
{
void *start = (void __force *)virt + offset;
__flush_invalidate_region(start, size);
__l2_flush_invalidate_phys(phys + offset, size);
}
void kmap_coherent_init(void);
void *kmap_coherent(struct page *page, unsigned long addr);
void kunmap_coherent(void *kvaddr);
#define PG_dcache_dirty PG_arch_1
void cpu_cache_init(void);
#endif /* __KERNEL__ */
#endif /* __ASM_SH_CACHEFLUSH_H */