2007-10-15 23:28:20 +02:00
|
|
|
#ifndef _ASM_X86_CACHEFLUSH_H
|
|
|
|
#define _ASM_X86_CACHEFLUSH_H
|
|
|
|
|
|
|
|
/* Keep includes the same across arches. */
|
|
|
|
#include <linux/mm.h>
|
|
|
|
|
|
|
|
/* Caches aren't brain-dead on the intel. */
|
|
|
|
#define flush_cache_all() do { } while (0)
|
|
|
|
#define flush_cache_mm(mm) do { } while (0)
|
|
|
|
#define flush_cache_dup_mm(mm) do { } while (0)
|
|
|
|
#define flush_cache_range(vma, start, end) do { } while (0)
|
|
|
|
#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
|
|
|
|
#define flush_dcache_page(page) do { } while (0)
|
|
|
|
#define flush_dcache_mmap_lock(mapping) do { } while (0)
|
|
|
|
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
|
|
|
|
#define flush_icache_range(start, end) do { } while (0)
|
|
|
|
#define flush_icache_page(vma,pg) do { } while (0)
|
|
|
|
#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
|
|
|
|
#define flush_cache_vmap(start, end) do { } while (0)
|
|
|
|
#define flush_cache_vunmap(start, end) do { } while (0)
|
|
|
|
|
|
|
|
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
|
|
|
|
memcpy(dst, src, len)
|
|
|
|
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
|
|
|
|
memcpy(dst, src, len)
|
|
|
|
|
2008-01-30 13:34:06 +01:00
|
|
|
int __deprecated_for_modules change_page_attr(struct page *page, int numpages,
|
|
|
|
pgprot_t prot);
|
x86: a new API for drivers/etc to control cache and other page attributes
Right now, if drivers or other code want to change, say, a cache attribute of a
page, the only API they have is change_page_attr(). c-p-a is a really bad API
for this, because it forces the caller to know *ALL* the attributes he wants
for the page, not just the 1 thing he wants to change. So code that wants to
set a page uncachable, needs to be aware of the NX status as well etc etc etc.
This patch introduces a set of new APIs for this, set_pages_<attr> and
set_memory_<attr>, that offer a logical change to the user, and leave all
attributes not implied by the requested logical change alone.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30 13:34:06 +01:00
|
|
|
|
|
|
|
int set_pages_uc(struct page *page, int numpages);
|
|
|
|
int set_pages_wb(struct page *page, int numpages);
|
|
|
|
int set_pages_x(struct page *page, int numpages);
|
|
|
|
int set_pages_nx(struct page *page, int numpages);
|
|
|
|
int set_pages_ro(struct page *page, int numpages);
|
|
|
|
int set_pages_rw(struct page *page, int numpages);
|
|
|
|
|
|
|
|
int set_memory_uc(unsigned long addr, int numpages);
|
|
|
|
int set_memory_wb(unsigned long addr, int numpages);
|
|
|
|
int set_memory_x(unsigned long addr, int numpages);
|
|
|
|
int set_memory_nx(unsigned long addr, int numpages);
|
|
|
|
int set_memory_ro(unsigned long addr, int numpages);
|
|
|
|
int set_memory_rw(unsigned long addr, int numpages);
|
2008-01-30 13:34:07 +01:00
|
|
|
int set_memory_np(unsigned long addr, int numpages);
|
x86: a new API for drivers/etc to control cache and other page attributes
Right now, if drivers or other code want to change, say, a cache attribute of a
page, the only API they have is change_page_attr(). c-p-a is a really bad API
for this, because it forces the caller to know *ALL* the attributes he wants
for the page, not just the 1 thing he wants to change. So code that wants to
set a page uncachable, needs to be aware of the NX status as well etc etc etc.
This patch introduces a set of new APIs for this, set_pages_<attr> and
set_memory_<attr>, that offer a logical change to the user, and leave all
attributes not implied by the requested logical change alone.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-01-30 13:34:06 +01:00
|
|
|
|
2008-01-30 13:34:09 +01:00
|
|
|
void clflush_cache_range(void *addr, unsigned int size);
|
2007-10-15 23:28:20 +02:00
|
|
|
|
|
|
|
#ifdef CONFIG_DEBUG_RODATA
|
|
|
|
void mark_rodata_ro(void);
|
|
|
|
#endif
|
2008-01-30 13:34:08 +01:00
|
|
|
#ifdef CONFIG_DEBUG_RODATA_TEST
|
|
|
|
void rodata_test(void);
|
|
|
|
#else
|
|
|
|
static inline void rodata_test(void)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
#endif
|
2007-10-15 23:28:20 +02:00
|
|
|
|
2007-10-11 11:20:03 +02:00
|
|
|
#endif
|