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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-06 17:59:33 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-06 17:59:33 -0800 |
commit | c77417132c12af338a7d37956809b2b98d20413c (patch) | |
tree | 02cb0ef1f8dfa1af8ce0965883dd449adf33eb2c /arch/m68k/include/asm/atomic.h | |
parent | e4e88f31bcb5f05f24b9ae518d4ecb44e1a7774d (diff) | |
parent | 1f7034b9616e6f14dc7b6aa280210421428f31af (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.h | 10 |
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; |