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[PARISC] Add parisc implementation of flush_kernel_dcache_page()

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We need to do a little renaming of our original syntax because
of the difference in arguments.

Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
This commit is contained in:
James Bottomley 2006-03-22 09:42:04 -07:00 committed by Kyle McMartin
parent ab43227c8a
commit ba57583396
5 changed files with 15 additions and 8 deletions
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6
arch/parisc/kernel/cache.c
View File

@ -89,7 +89,7 @@ update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
if (pfn_valid(page_to_pfn(page)) && page_mapping(page) && if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
test_bit(PG_dcache_dirty, &page->flags)) { test_bit(PG_dcache_dirty, &page->flags)) {
flush_kernel_dcache_page(page_address(page)); flush_kernel_dcache_page(page);
clear_bit(PG_dcache_dirty, &page->flags); clear_bit(PG_dcache_dirty, &page->flags);
} }
} }
@ -278,7 +278,7 @@ void flush_dcache_page(struct page *page)
return; return;
} }
flush_kernel_dcache_page(page_address(page)); flush_kernel_dcache_page(page);
if (!mapping) if (!mapping)
return; return;
@ -317,7 +317,7 @@ EXPORT_SYMBOL(flush_dcache_page);
/* Defined in arch/parisc/kernel/pacache.S */ /* Defined in arch/parisc/kernel/pacache.S */
EXPORT_SYMBOL(flush_kernel_dcache_range_asm); EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
EXPORT_SYMBOL(flush_kernel_dcache_page); EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
EXPORT_SYMBOL(flush_data_cache_local); EXPORT_SYMBOL(flush_data_cache_local);
EXPORT_SYMBOL(flush_kernel_icache_range_asm); EXPORT_SYMBOL(flush_kernel_icache_range_asm);

4
arch/parisc/kernel/pacache.S
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@ -621,9 +621,9 @@ __clear_user_page_asm:
.procend .procend
.export flush_kernel_dcache_page .export flush_kernel_dcache_page_asm
flush_kernel_dcache_page: flush_kernel_dcache_page_asm:
.proc .proc
.callinfo NO_CALLS .callinfo NO_CALLS
.entry .entry

2
include/asm-parisc/cache.h
View File

@ -48,7 +48,7 @@ extern void flush_user_icache_range_asm(unsigned long, unsigned long);
extern void flush_kernel_icache_range_asm(unsigned long, unsigned long); extern void flush_kernel_icache_range_asm(unsigned long, unsigned long);
extern void flush_user_dcache_range_asm(unsigned long, unsigned long); extern void flush_user_dcache_range_asm(unsigned long, unsigned long);
extern void flush_kernel_dcache_range_asm(unsigned long, unsigned long); extern void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
extern void flush_kernel_dcache_page(void *); extern void flush_kernel_dcache_page_asm(void *);
extern void flush_kernel_icache_page(void *); extern void flush_kernel_icache_page(void *);
extern void disable_sr_hashing(void); /* turns off space register hashing */ extern void disable_sr_hashing(void); /* turns off space register hashing */
extern void disable_sr_hashing_asm(int); /* low level support for above */ extern void disable_sr_hashing_asm(int); /* low level support for above */

9
include/asm-parisc/cacheflush.h
View File

@ -62,7 +62,7 @@ extern void flush_dcache_page(struct page *page);
#define flush_dcache_mmap_unlock(mapping) \ #define flush_dcache_mmap_unlock(mapping) \
write_unlock_irq(&(mapping)->tree_lock) write_unlock_irq(&(mapping)->tree_lock)
#define flush_icache_page(vma,page) do { flush_kernel_dcache_page(page_address(page)); flush_kernel_icache_page(page_address(page)); } while (0) #define flush_icache_page(vma,page) do { flush_kernel_dcache_page(page); flush_kernel_icache_page(page_address(page)); } while (0)
#define flush_icache_range(s,e) do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0) #define flush_icache_range(s,e) do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0)
@ -192,6 +192,13 @@ flush_anon_page(struct page *page, unsigned long vmaddr)
} }
#define ARCH_HAS_FLUSH_ANON_PAGE #define ARCH_HAS_FLUSH_ANON_PAGE
static inline void
flush_kernel_dcache_page(struct page *page)
{
flush_kernel_dcache_page_asm(page_address(page));
}
#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
#ifdef CONFIG_DEBUG_RODATA #ifdef CONFIG_DEBUG_RODATA
void mark_rodata_ro(void); void mark_rodata_ro(void);
#endif #endif

2
include/asm-parisc/page.h
View File

@ -26,7 +26,7 @@ static inline void
copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg) copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
{ {
copy_user_page_asm(vto, vfrom); copy_user_page_asm(vto, vfrom);
flush_kernel_dcache_page(vto); flush_kernel_dcache_page_asm(vto);
/* XXX: ppc flushes icache too, should we? */ /* XXX: ppc flushes icache too, should we? */
} }