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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 17:59:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 17:59:33 -0800
commitc77417132c12af338a7d37956809b2b98d20413c (patch)
tree02cb0ef1f8dfa1af8ce0965883dd449adf33eb2c /arch/m68k/include/asm/atomic.h
parente4e88f31bcb5f05f24b9ae518d4ecb44e1a7774d (diff)
parent1f7034b9616e6f14dc7b6aa280210421428f31af (diff)
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (56 commits) m68k: allow ColdFire 547x and 548x CPUs to be built with MMU enabled m68k/Kconfig: Separate classic m68k and coldfire early m68k: add ColdFire with MMU enabled support to the m68k mem init code m68k: do not use m68k startup or interrupt code for ColdFire CPUs m68k: add ColdFire FPU support for the V4e ColdFire CPUs m68k: adjustments to stack frame for ColdFire with MMU enabled m68k: use non-MMU linker script for ColdFire MMU builds m68k: ColdFire with MMU enabled uses same clocking code as non-MMU m68k: add code to setup a ColdFire 54xx platform when MMU enabled m68k: use non-MMU entry.S code when compiling for ColdFire CPU m68k: create ColdFire MMU pgalloc code m68k: compile appropriate mm arch files for ColdFire MMU support m68k: ColdFire V4e MMU paging init code and miss handler m68k: use ColdFire MMU read/write bit flags when ioremapping m68k: modify cache push and clear code for ColdFire with MMU enable m68k: use tracehook_report_syscall_entry/exit for ColdFire MMU ptrace path m68k: ColdFire V4e MMU context support code m68k: MMU enabled ColdFire needs 8k ELF alignment m68k: set ColdFire MMU page size m68k: define PAGE_OFFSET_RAW for ColdFire CPU with MMU enabled ...
Diffstat (limited to 'arch/m68k/include/asm/atomic.h')
-rw-r--r--arch/m68k/include/asm/atomic.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h
index 65c6be6c818..4eba796c00d 100644
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -55,6 +55,16 @@ static inline int atomic_dec_and_test(atomic_t *v)
return c != 0;
}
+static inline int atomic_dec_and_test_lt(atomic_t *v)
+{
+ char c;
+ __asm__ __volatile__(
+ "subql #1,%1; slt %0"
+ : "=d" (c), "=m" (*v)
+ : "m" (*v));
+ return c != 0;
+}
+
static inline int atomic_inc_and_test(atomic_t *v)
{
char c;