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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-11 18:08:49 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-11 18:08:49 -0300
commitd4e493caf788ef44982e131ff9c786546904d934 (patch)
tree04c72e6d295ff6b222c2991ff4b87d16d651443b /arch/mips/mm
parenteccbe858ce6412b96fc7cb32eb23a3592f64e5f6 (diff)
Linux-libre 4.4.5-gnupck-4.4.5-gnu
Diffstat (limited to 'arch/mips/mm')
-rw-r--r--arch/mips/mm/sc-mips.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index 3bd0597d9..ddb815461 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -164,11 +164,13 @@ static int __init mips_sc_probe_cm3(void)
sets = cfg & CM_GCR_L2_CONFIG_SET_SIZE_MSK;
sets >>= CM_GCR_L2_CONFIG_SET_SIZE_SHF;
- c->scache.sets = 64 << sets;
+ if (sets)
+ c->scache.sets = 64 << sets;
line_sz = cfg & CM_GCR_L2_CONFIG_LINE_SIZE_MSK;
line_sz >>= CM_GCR_L2_CONFIG_LINE_SIZE_SHF;
- c->scache.linesz = 2 << line_sz;
+ if (line_sz)
+ c->scache.linesz = 2 << line_sz;
assoc = cfg & CM_GCR_L2_CONFIG_ASSOC_MSK;
assoc >>= CM_GCR_L2_CONFIG_ASSOC_SHF;
@@ -176,9 +178,12 @@ static int __init mips_sc_probe_cm3(void)
c->scache.waysize = c->scache.sets * c->scache.linesz;
c->scache.waybit = __ffs(c->scache.waysize);
- c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
+ if (c->scache.linesz) {
+ c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
+ return 1;
+ }
- return 1;
+ return 0;
}
void __weak platform_early_l2_init(void)