MIPS: mm: BMIPS5000 has inclusive physical caches
authorFlorian Fainelli <f.fainelli@gmail.com>
Wed, 19 Aug 2020 18:26:44 +0000 (11:26 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 12 Sep 2020 09:47:33 +0000 (11:47 +0200)
[ Upstream commit dbfc95f98f0158958d1f1e6bf06d74be38dbd821 ]

When the BMIPS generic cpu-feature-overrides.h file was introduced,
cpu_has_inclusive_caches/MIPS_CPU_INCLUSIVE_CACHES was not set for
BMIPS5000 CPUs. Correct this when we have initialized the MIPS secondary
cache successfully.

Fixes: f337967d6d87 ("MIPS: BMIPS: Add cpu-feature-overrides.h")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/mips/mm/c-r4k.c

index 0ff379f0cc4a7011fb91e44a2454ef3f8ae9733d..cb877f86f5fc9f4125e1254dca4f98340227a52d 100644 (file)
@@ -1746,7 +1746,11 @@ static void setup_scache(void)
                                printk("MIPS secondary cache %ldkB, %s, linesize %d bytes.\n",
                                       scache_size >> 10,
                                       way_string[c->scache.ways], c->scache.linesz);
+
+                               if (current_cpu_type() == CPU_BMIPS5000)
+                                       c->options |= MIPS_CPU_INCLUSIVE_CACHES;
                        }
+
 #else
                        if (!(c->scache.flags & MIPS_CACHE_NOT_PRESENT))
                                panic("Dunno how to handle MIPS32 / MIPS64 second level cache");