From d1e344e500cc693139a69d29122db18190916448 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 4 Feb 2005 15:51:26 +0000 Subject: [PATCH] Use hardware mechanism to deal with cache aliases in the 24K. Signed-off-by: Ralf Baechle --- arch/mips/mm/c-r4k.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index c08fa366b1..1466c497be 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1011,9 +1011,17 @@ static void __init probe_pcache(void) * normally they'd suffer from aliases but magic in the hardware deals * with that for us so we don't need to take care ourselves. */ - if (c->cputype != CPU_R10000 && c->cputype != CPU_R12000) + switch (c->cputype) { if (c->dcache.waysize > PAGE_SIZE) - c->dcache.flags |= MIPS_CACHE_ALIASES; + + case CPU_R10000: + case CPU_R12000: + break; + case CPU_24K: + if (!(read_c0_config7() & (1 << 16))) + default: + c->dcache.flags |= MIPS_CACHE_ALIASES; + } switch (c->cputype) { case CPU_20KC: -- 2.39.5