cacheflush.h File Reference

#include <linux/mm.h>

Go to the source code of this file.

Macros
#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)
#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)

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

Macro Definition Documentation

#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE   0

Definition at line 22 of file cacheflush.h.

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

Definition at line 38 of file cacheflush.h.

#define copy_to_user_page	(		vma,
			page,
			vaddr,
			dst,
			src,
			len
	)

Value:

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

Definition at line 41 of file cacheflush.h.

#define flush_cache_dup_mm

(

mm

)

do {} while (0)

Definition at line 21 of file cacheflush.h.

#define flush_cache_vmap	(		start,
			end
	)		do {} while (0)

Definition at line 25 of file cacheflush.h.

#define flush_cache_vunmap	(		start,
			end
	)		do {} while (0)

Definition at line 26 of file cacheflush.h.

#define flush_dcache_mmap_lock

(

mapping

)

do {} while (0)

Definition at line 23 of file cacheflush.h.

#define flush_dcache_mmap_unlock

(

mapping

)

do {} while (0)

Definition at line 24 of file cacheflush.h.

#define PG_dcache_dirty   PG_arch_1

Definition at line 19 of file cacheflush.h.

Function Documentation

void flush_cache_all

(

void

)

Definition at line 456 of file cache.c.

void flush_cache_mm

(

struct mm_struct *

mm

)

Definition at line 30 of file flush.c.

void flush_cache_page	(	struct vm_area_struct *	vma,
		unsigned long	page,
		unsigned long	pfn
	)

Definition at line 41 of file flush.c.

void flush_cache_range	(	struct vm_area_struct *	vma,
		unsigned long	start,
		unsigned long	end
	)

Definition at line 34 of file flush.c.

void flush_cache_sigtramp

(

unsigned long

addr

)

Definition at line 222 of file cache.c.

void flush_dcache_page

(

struct page *

page

)

Definition at line 273 of file flush.c.

void flush_dcache_range	(	unsigned long	start,
		unsigned long	end
	)

Definition at line 28 of file cache.c.

void flush_icache_all

(

void

)

Definition at line 121 of file cache.c.

void flush_icache_range	(	unsigned long	start,
		unsigned long	end
	)

flush_icache_range - Globally flush dcache and invalidate icache for region : The starting virtual address of the region. : The ending virtual address of the region.

This is used by the kernel to globally flush some code it has just written from the dcache back to RAM and then to globally invalidate the icache over that region so that that code can be run on all CPUs in the system.

Definition at line 106 of file cache.c.