Commit 2b78920d authored Jun 09, 2010 by Deng-Cheng Zhu Committed by Ralf Baechle Oct 04, 2010

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>

parent 543001f8

arch/mips/Kconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -13,6 +13,7 @@ config MIPS
		select HAVE_KPROBES
		select HAVE_KRETPROBES
		select RTC_LIB if !MACH_LOONGSON
		select GENERIC_ATOMIC64 if !64BIT

		mainmenu "Linux/MIPS Kernel Configuration"

arch/mips/include/asm/atomic.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -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 */

		/*