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authorDeng-Cheng Zhu <dengcheng.zhu@gmail.com>2010-06-09 00:35:25 -0400
committerRalf Baechle <ralf@linux-mips.org>2010-10-04 13:33:54 -0400
commit2b78920d19870561a8b7503b8e869a6da5f07d3f (patch)
tree363e73cd197f0a873322df38bb8ac5dcb8f6541d /arch
parent543001f8d8a878c3babe4525cb16d83d25c16762 (diff)
MIPS: Use generic atomic64 for 32-bit kernels
The 64-bit 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@gmail.com> To: linux-mips@linux-mips.org Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org Cc: mingo@elte.hu Cc: acme@redhat.com Cc: jamie.iles@picochip.com Patchwork: https://patchwork.linux-mips.org/patch/1361/ Acked-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/Kconfig1
-rw-r--r--arch/mips/include/asm/atomic.h4
2 files changed, 5 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3ad59dde4852..ec410009e8f0 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -13,6 +13,7 @@ config MIPS
13 select HAVE_KPROBES 13 select HAVE_KPROBES
14 select HAVE_KRETPROBES 14 select HAVE_KRETPROBES
15 select RTC_LIB if !MACH_LOONGSON 15 select RTC_LIB if !MACH_LOONGSON
16 select GENERIC_ATOMIC64 if !64BIT
16 17
17mainmenu "Linux/MIPS Kernel Configuration" 18mainmenu "Linux/MIPS Kernel Configuration"
18 19
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index c63c56bfd184..47d87da379f9 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)
782 */ 782 */
783#define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0) 783#define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0)
784 784
785#else /* !CONFIG_64BIT */
786
787#include <asm-generic/atomic64.h>
788
785#endif /* CONFIG_64BIT */ 789#endif /* CONFIG_64BIT */
786 790
787/* 791/*