| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 016/312] MIPS: BMIPS: local_r4k___flush_cache_all needs to blast S-cache | Date | Fri, 8 May 2020 14:30:07 +0200 |
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From: Florian Fainelli <f.fainelli@gmail.com>
commit f675843ddfdfdf467d08cc922201614a149e439e upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/mips/mm/c-r4k.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -447,6 +447,11 @@ static inline void local_r4k___flush_cac r4k_blast_scache(); break; + case CPU_BMIPS5000: + r4k_blast_scache(); + __sync(); + break; + default: r4k_blast_dcache(); r4k_blast_icache();
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