MIPS: BMIPS: local_r4k___flush_cache_all needs to blast S-cache

local_r4k___flush_cache_all() is missing a special check for BMIPS5000
processors, we need to blast the S-cache, just like other MTI processors
since we have an inclusive cache. We also need an additional __sync() to
make sure this is completed.

Fixes: d74b0172e4e2c ("MIPS: BMIPS: Add special cache handling in c-r4k.c")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13012/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 226516d..6f43bdf 100644 (file)
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -447,6 +447,11 @@ static inline void local_r4k___flush_cache_all(void * args)
                r4k_blast_scache();
                break;
 
+       case CPU_BMIPS5000:
+               r4k_blast_scache();
+               __sync();
+               break;
+
        default:
                r4k_blast_dcache();
                r4k_blast_icache();