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| author | Dawid Niedzwiecki <dn@semihalf.com> | 2022-03-04 11:47:37 +0100 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2022-03-09 09:49:29 +0000 |
| commit | c755fffea0e2e05733e61ea254d820612e869b7a (patch) | |
| tree | 6c92d6c062de5d1d9ac16f576d34023588ee9b46 /core/cortex-m | |
| parent | 3f1fe1e185c05c8037576466d246945be385973d (diff) | |
| download | chrome-ec-c755fffea0e2e05733e61ea254d820612e869b7a.tar.gz | |
atomic: add atomic_and function
Add atomic_and functions for all cores.
The functions will be used for more complex atomic operations for bits
manipulating that will be merged in a following CL.
BRANCH=none
BUG=b:208435177
TEST=make buildall
Signed-off-by: Dawid Niedzwiecki <dn@semihalf.com>
Change-Id: I659ee8214206750fbe8af4df21672d8cbfc59278
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3500418
Reviewed-by: Keith Short <keithshort@chromium.org>
Commit-Queue: Dawid Niedzwiecki <dawidn@google.com>
Diffstat (limited to 'core/cortex-m')
| -rw-r--r-- | core/cortex-m/atomic.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/core/cortex-m/atomic.h b/core/cortex-m/atomic.h index ce183465e8..a09f5cc8be 100644 --- a/core/cortex-m/atomic.h +++ b/core/cortex-m/atomic.h @@ -36,4 +36,9 @@ static inline atomic_val_t atomic_clear(atomic_t *addr) return __atomic_exchange_n(addr, 0, __ATOMIC_SEQ_CST); } +static inline atomic_val_t atomic_and(atomic_t *addr, atomic_val_t bits) +{ + return __atomic_fetch_and(addr, bits, __ATOMIC_SEQ_CST); +} + #endif /* __CROS_EC_ATOMIC_H */ |