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[MIPS] MIPS32/MIPS64 S-cache fix and cleanup 

Use blast_scache_range, blast_inv_scache_range for mips32/mips64 scache
routine.  Also initialize waybit for MIPS32/MIPS64 S-cache.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto 2006-06-22 19:42:43 +09:00 committed by Ralf Baechle
parent 86165879a2
commit a2c2bc4b26
1 changed files with 3 additions and 32 deletions
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35
arch/mips/mm/sc-mips.c
View File

@ -24,22 +24,7 @@
*/
static void mips_sc_wback_inv(unsigned long addr, unsigned long size)
{
unsigned long sc_lsize = cpu_scache_line_size();
unsigned long end, a;
pr_debug("mips_sc_wback_inv[%08lx,%08lx]", addr, size);
/* Catch bad driver code */
BUG_ON(size == 0);
a = addr & ~(sc_lsize - 1);
end = (addr + size - 1) & ~(sc_lsize - 1);
while (1) {
flush_scache_line(a); /* Hit_Writeback_Inv_SD */
if (a == end)
break;
a += sc_lsize;
}
blast_scache_range(addr, addr + size);
}
/*
@ -47,22 +32,7 @@ static void mips_sc_wback_inv(unsigned long addr, unsigned long size)
*/
static void mips_sc_inv(unsigned long addr, unsigned long size)
{
unsigned long sc_lsize = cpu_scache_line_size();
unsigned long end, a;
pr_debug("mips_sc_inv[%08lx,%08lx]", addr, size);
/* Catch bad driver code */
BUG_ON(size == 0);
a = addr & ~(sc_lsize - 1);
end = (addr + size - 1) & ~(sc_lsize - 1);
while (1) {
invalidate_scache_line(a); /* Hit_Invalidate_SD */
if (a == end)
break;
a += sc_lsize;
}
blast_inv_scache_range(addr, addr + size);
}
static void mips_sc_enable(void)
@ -123,6 +93,7 @@ static inline int __init mips_sc_probe(void)
return 0;
c->scache.waysize = c->scache.sets * c->scache.linesz;
c->scache.waybit = __ffs(c->scache.waysize);
c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;