diff options
| author | Subrata Banik <subrata.banik@intel.com> | 2018-05-03 18:48:41 +0530 |
|---|---|---|
| committer | Subrata Banik <subrata.banik@intel.com> | 2018-05-19 01:16:06 +0000 |
| commit | 8a25caee0507655d775e3dcc21b36b01ca517113 (patch) | |
| tree | 7cde904b2a0c3a3296a1008a3167a0f1f43e61de /src/include/cpu | |
| parent | e66600ee4f33291ef620133c7f2df54f449d9470 (diff) | |
cpu/x86: Add support to run function on single AP
This patch ensures that user can select a specific AP to run
a function.
BUG=b:74436746
BRANCH=none
TEST=Able to run functions over APs with argument.
Change-Id: Iff2f34900ce2a96ef6ff0779b651f25ebfc739ad
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/26034
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/include/cpu')
| -rw-r--r-- | src/include/cpu/x86/mp.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/include/cpu/x86/mp.h b/src/include/cpu/x86/mp.h index fba3e75af7..c04252ec35 100644 --- a/src/include/cpu/x86/mp.h +++ b/src/include/cpu/x86/mp.h @@ -116,6 +116,11 @@ struct mp_ops { */ int mp_init_with_smm(struct bus *cpu_bus, const struct mp_ops *mp_ops); +enum { + /* Function runs on all cores (both BSP and APs) */ + MP_RUN_ON_ALL_CPUS, + /* Need to specify cores (only on APs) numbers */ +}; /* * After APs are up and PARALLEL_MP_AP_WORK is enabled one can issue work @@ -123,10 +128,13 @@ int mp_init_with_smm(struct bus *cpu_bus, const struct mp_ops *mp_ops); * to issue work. i.e. the APs should not call any of these functions. * * Input parameter expire_us <= 0 to specify an infinite timeout. + * logical_cpu_num = MP_RUN_ON_ALL_CPUS to execute function over all cores (BSP + * + APs) else specified AP number using logical_cpu_num. * * All functions return < 0 on error, 0 on success. */ -int mp_run_on_aps(void (*func)(void *), void *arg, long expire_us); +int mp_run_on_aps(void (*func)(void *), void *arg, int logical_cpu_num, + long expire_us); /* Like mp_run_on_aps() but also runs func on BSP. */ int mp_run_on_all_cpus(void (*func)(void *), void *arg, long expire_us); |