diff options
| author | Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> | 2014-05-13 18:01:21 +0300 |
|---|---|---|
| committer | Stafford Horne <shorne@gmail.com> | 2017-02-25 04:14:00 +0900 |
| commit | 11595172537788f0007bfc16590aab18f2b9c40f (patch) | |
| tree | f1db0dec55a0de2185628d49efdbcbf3297cd840 /arch/openrisc/include/asm/Kbuild | |
| parent | 0e9f9fd20ce931cc2cf0519c56ae33fc74d656ad (diff) | |
openrisc: add cmpxchg and xchg implementations
Optimized version that make use of the l.lwa and l.swa atomic instruction
pair.
Most openrisc cores provide these instructions now, if not available
emulation is provided.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
[shorne@gmail.com: remove OPENRISC_HAVE_INST_LWA_SWA config suggesed by
Alan Cox https://lkml.org/lkml/2014/7/23/666]
[shorne@gmail.com: fixed unused calculated value compiler warning in
define cmpxchg]
Signed-off-by: Stafford Horne <shorne@gmail.com>
Diffstat (limited to 'arch/openrisc/include/asm/Kbuild')
| -rw-r--r-- | arch/openrisc/include/asm/Kbuild | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild index 6dd177d28c3b..15e6ed526453 100644 --- a/arch/openrisc/include/asm/Kbuild +++ b/arch/openrisc/include/asm/Kbuild @@ -10,8 +10,6 @@ generic-y += bugs.h generic-y += cacheflush.h generic-y += checksum.h generic-y += clkdev.h -generic-y += cmpxchg-local.h -generic-y += cmpxchg.h generic-y += cputime.h generic-y += current.h generic-y += device.h |