From 9d24bafb0d1ecf636f71a56f9d6f071f5c7a882d Mon Sep 17 00:00:00 2001 From: David Daney Date: Mon, 13 Jul 2009 11:15:20 -0700 Subject: [PATCH] MIPS: Octeon: Set kernel_uses_llsc to false on non-SMP builds. Signed-off-by: David Daney Signed-off-by: Ralf Baechle --- .../asm/mach-cavium-octeon/cpu-feature-overrides.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h index 3d830756b13a..425e708d4fb9 100644 --- a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h @@ -31,12 +31,16 @@ #define cpu_has_cache_cdex_s 0 #define cpu_has_prefetch 1 +#define cpu_has_llsc 1 /* - * We should disable LL/SC on non SMP systems as it is faster to - * disable interrupts for atomic access than a LL/SC. Unfortunatly we - * cannot as this breaks asm/futex.h + * We Disable LL/SC on non SMP systems as it is faster to disable + * interrupts for atomic access than a LL/SC. */ -#define cpu_has_llsc 1 +#ifdef CONFIG_SMP +# define kernel_uses_llsc 1 +#else +# define kernel_uses_llsc 0 +#endif #define cpu_has_vtag_icache 1 #define cpu_has_dc_aliases 0 #define cpu_has_ic_fills_f_dc 0 -- GitLab