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sh64: Wire up the shared __flush_xxx_region() flushers. 

Now with all of the prep work out of the way, kill off the SH-5 variants
and use the SH-4 version directly. This also takes advantage of the
unrolling that was previously done for the new version.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2009-08-15 02:00:54 +09:00
parent 43bc61d86f
commit 795687265d
2 changed files with 1 additions and 49 deletions
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2
arch/sh/mm/Makefile_64
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@ -9,7 +9,7 @@ mmu-$(CONFIG_MMU) := fault_64.o ioremap_64.o tlbflush_64.o tlb-sh5.o \
extable_64.o
ifndef CONFIG_CACHE_OFF
obj-y += cache-sh5.o
obj-y += cache-sh5.o flush-sh4.o
endif
obj-y += $(mmu-y)

48
arch/sh/mm/cache-sh5.c
View File

@ -539,54 +539,6 @@ static void sh64_dcache_purge_user_range(struct mm_struct *mm,
sh64_dcache_purge_user_pages(mm, start, end);
}
}
/*
* Purge the range of addresses from the D-cache.
*
* The addresses lie in the superpage mapping. There's no harm if we
* overpurge at either end - just a small performance loss.
*/
void __flush_purge_region(void *start, int size)
{
unsigned long long ullend, addr, aligned_start;
aligned_start = (unsigned long long)(signed long long)(signed long) start;
addr = L1_CACHE_ALIGN(aligned_start);
ullend = (unsigned long long) (signed long long) (signed long) start + size;
while (addr <= ullend) {
__asm__ __volatile__ ("ocbp %0, 0" : : "r" (addr));
addr += L1_CACHE_BYTES;
}
}
void __flush_wback_region(void *start, int size)
{
unsigned long long ullend, addr, aligned_start;
aligned_start = (unsigned long long)(signed long long)(signed long) start;
addr = L1_CACHE_ALIGN(aligned_start);
ullend = (unsigned long long) (signed long long) (signed long) start + size;
while (addr < ullend) {
__asm__ __volatile__ ("ocbwb %0, 0" : : "r" (addr));
addr += L1_CACHE_BYTES;
}
}
void __flush_invalidate_region(void *start, int size)
{
unsigned long long ullend, addr, aligned_start;
aligned_start = (unsigned long long)(signed long long)(signed long) start;
addr = L1_CACHE_ALIGN(aligned_start);
ullend = (unsigned long long) (signed long long) (signed long) start + size;
while (addr < ullend) {
__asm__ __volatile__ ("ocbi %0, 0" : : "r" (addr));
addr += L1_CACHE_BYTES;
}
}
#endif /* !CONFIG_DCACHE_DISABLED */
/*