64bit kernel has already had its atomic64 functions. Except for that, we use the generic spinlocked version. The atomic64 types and related functions are needed for the Linux performance counter subsystem. Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@xxxxxxxxx> --- arch/mips/Kconfig | 1 + arch/mips/include/asm/atomic.h | 4 ++++ 2 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index cdaae94..564e30b 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -11,6 +11,7 @@ config MIPS select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_GRAPH_TRACER select RTC_LIB if !MACH_LOONGSON + select GENERIC_ATOMIC64 if !64BIT mainmenu "Linux/MIPS Kernel Configuration" diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h index 59dc0c7..485ec36 100644 --- a/arch/mips/include/asm/atomic.h +++ b/arch/mips/include/asm/atomic.h @@ -782,6 +782,10 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) */ #define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0) +#else /* !CONFIG_64BIT */ + +#include <asm-generic/atomic64.h> + #endif /* CONFIG_64BIT */ /* -- 1.6.3.3
