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authorThomas Bogendoerfer <tsbogend@alpha.franken.de>2020-10-07 12:17:04 +0200
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2020-10-08 10:33:27 +0200
commit46dd40aa376c8158b6aa17510079caf5c3af6237 (patch)
tree5f4cb3746c7537b3f1475eaaeada9a9e77244cce /arch/mips/include
parent43fab0856eafb32d5cdb809d8225197755826128 (diff)
MIPS: SGI-IP28: disable use of ll/sc in kernel
SGI-IP28 systems only use broken R10k rev 2.5 CPUs, which could lock up, if ll/sc sequences are issued in certain order. Since those systems are all non-SMP, we can disable ll/sc usage in kernel. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
index ba8b4e30b3e2..613bbc10c1f2 100644
--- a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
@@ -25,7 +25,7 @@
#define cpu_has_mcheck 0
#define cpu_has_ejtag 0
-#define cpu_has_llsc 1
+#define cpu_has_llsc 0
#define cpu_has_vtag_icache 0
#define cpu_has_dc_aliases 0 /* see probe_pcache() */
#define cpu_has_ic_fills_f_dc 0