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| author | Ivan Maidanski <ivmai@mail.ru> | 2016-11-18 18:22:00 +0300 |
|---|---|---|
| committer | Ivan Maidanski <ivmai@mail.ru> | 2016-11-18 18:22:00 +0300 |
| commit | 8c34424b3a10eef507655b3304297d96ad71f804 (patch) | |
| tree | 51185ee95c774fefb7acff8074907e6e28b112db | |
| parent | b6bfe95a4e215d2db19f26ba5a8cb8b0726e2afe (diff) | |
| download | libatomic_ops-8c34424b3a10eef507655b3304297d96ad71f804.tar.gz | |
Refine AO_nop_write comment for ARM big.LITTLE architecture
* src/atomic_ops/sysdeps/gcc/arm.h [!AO_UNIPROCESSOR && AO_ARM_HAVE_DMB
&& !AO_PREFER_BUILTIN_ATOMICS] (AO_nop_write): Refine comment about
"dmb ishst" for big.LITTLE architecture.
| -rw-r--r-- | src/atomic_ops/sysdeps/gcc/arm.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/atomic_ops/sysdeps/gcc/arm.h b/src/atomic_ops/sysdeps/gcc/arm.h index f548aa1..633ed3b 100644 --- a/src/atomic_ops/sysdeps/gcc/arm.h +++ b/src/atomic_ops/sysdeps/gcc/arm.h @@ -108,7 +108,8 @@ { /* AO_THUMB_GO_ARM is empty. */ /* This will target the system domain and thus be overly */ - /* conservative as the CPUs will occupy the inner shareable domain. */ + /* conservative as the CPUs (even in case of big.LITTLE SoC) will */ + /* occupy the inner shareable domain. */ /* The plain variant (dmb st) is theoretically slower, and should */ /* not be needed. That said, with limited experimentation, a CPU */ /* implementation for which it actually matters has not been found */ |