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| author | Dawid Niedzwiecki <dn@semihalf.com> | 2020-09-28 15:43:55 +0200 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-10-15 13:03:19 +0000 |
| commit | d31a8e4b5ac2def50650690a76cb13c3ec834bae (patch) | |
| tree | 26fb27b1fc06a617758d109905de1b3f23bea3c6 /test/battery_get_params_smart.c | |
| parent | 92f55b092e0a8b00496db89e3d129932aae0525a (diff) | |
| download | chrome-ec-d31a8e4b5ac2def50650690a76cb13c3ec834bae.tar.gz | |
core/cortex-m0: add Zephyr compatible atomic functions
Add atomic functions with prototypes equal to the ones in Zephyr.
It is done as a part of porting to Zephyr, the next step is to use in
the code atomic_* instead of deprecated_atomic_*.
Some atomic functions in Zephyr return a value e.g. atomic_add - it
returns the value of the variable before the add operation.
To support such functionality the new ATOMIC_OP define is introduced.
The "memory" clobber is added to the asm statement to inform compiler
that memory pointed by the input parameter (a) is changed. This is
needed, because atomic_* functions are inline.
GCC builtin functions are not used, because those functions are not
available for cortex-m0.
BUG=b:169151160
BRANCH=none
TEST=buildall
Signed-off-by: Dawid Niedzwiecki <dn@semihalf.com>
Change-Id: I713daf388cb279704ae1b3767bd84b71a255f7cd
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2438425
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Diffstat (limited to 'test/battery_get_params_smart.c')
0 files changed, 0 insertions, 0 deletions