Hello.
On 06/25/2012 07:09 PM, Steven J. Hill wrote:
From: "Steven J. Hill" <sjhill@xxxxxxxx>
Signed-off-by: Steven J. Hill <sjhill@xxxxxxxx>
Minor nit on code formatting.
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index ce0dbee..b96ebe9 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1040,10 +1040,27 @@ static void __cpuinit probe_pcache(void)
case CPU_R14000:
break;
+ case CPU_74K:
+ /*
+ * Early versions of the 74k do not update
+ * the cache tags on a vtag miss/ptag hit
+ * which can occur in the case of KSEG0/KUSEG aliases
+ * In this case it is better to treat the cache as always
+ * having aliases
+ */
+ if ((c->processor_id & 0xff) <= PRID_REV_ENCODE_332(2, 4, 0))
+ c->dcache.flags |= MIPS_CACHE_VTAG;
+ if ((c->processor_id & 0xff) == PRID_REV_ENCODE_332(2, 4, 0))
+ write_c0_config6(read_c0_config6() | MIPS_CONF6_SYND);
+ if (((c->processor_id & 0xff00) == PRID_IMP_1074K) &&
+ ((c->processor_id & 0xff) <= PRID_REV_ENCODE_332(1, 1, 0))) {
Wrong indentation here -- the first ( should be shifted at least one space
to the right.
WBR, Sergei
