This is a note to let you know that I've just added the patch titled
MIPS: BMIPS: local_r4k___flush_cache_all needs to blast S-cache
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mips-bmips-local_r4k___flush_cache_all-needs-to-blast-s-cache.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f675843ddfdfdf467d08cc922201614a149e439e Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@xxxxxxxxx>
Date: Mon, 4 Apr 2016 10:55:36 -0700
Subject: MIPS: BMIPS: local_r4k___flush_cache_all needs to blast S-cache
From: Florian Fainelli <f.fainelli@xxxxxxxxx>
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@xxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Patchwork: https://patchwork.linux-mips.org/patch/13012/
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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();
Patches currently in stable-queue which might be from f.fainelli@xxxxxxxxx are
queue-4.4/mips-bmips-adjust-mips-hpt-frequency-for-bcm7435.patch
queue-4.4/mips-bmips-clear-mips_cache_aliases-earlier.patch
queue-4.4/mips-bmips-pretty-print-bmips5200-processor-name.patch
queue-4.4/mips-bmips-bmips5000-has-i-cache-filing-from-d-cache.patch
queue-4.4/mips-bmips-fix-prid_imp_bmips5000-masking-for-bmips5200.patch
queue-4.4/mips-smp-update-cpu_foreign_map-on-cpu-disable.patch
queue-4.4/mips-bmips-local_r4k___flush_cache_all-needs-to-blast-s-cache.patch
