diff options
Diffstat (limited to 'src/cpu/x86')
| -rw-r--r-- | src/cpu/x86/mp_init.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/src/cpu/x86/mp_init.c b/src/cpu/x86/mp_init.c index ef576ec26d..a696cd0a5c 100644 --- a/src/cpu/x86/mp_init.c +++ b/src/cpu/x86/mp_init.c @@ -43,6 +43,7 @@ struct mp_callback { void (*func)(void *); void *arg; + int logical_cpu_number; }; /* @@ -924,11 +925,13 @@ static void ap_wait_for_instruction(void) { struct mp_callback lcb; struct mp_callback **per_cpu_slot; + int cur_cpu; if (!IS_ENABLED(CONFIG_PARALLEL_MP_AP_WORK)) return; - per_cpu_slot = &ap_callbacks[cpu_index()]; + cur_cpu = cpu_index(); + per_cpu_slot = &ap_callbacks[cur_cpu]; while (1) { struct mp_callback *cb = read_callback(per_cpu_slot); @@ -942,13 +945,19 @@ static void ap_wait_for_instruction(void) memcpy(&lcb, cb, sizeof(lcb)); mfence(); store_callback(per_cpu_slot, NULL); - lcb.func(lcb.arg); + if (lcb.logical_cpu_number && (cur_cpu != + lcb.logical_cpu_number)) + continue; + else + lcb.func(lcb.arg); } } -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) { - struct mp_callback lcb = { .func = func, .arg = arg }; + struct mp_callback lcb = { .func = func, .arg = arg, + .logical_cpu_number = logical_cpu_num}; return run_ap_work(&lcb, expire_us); } @@ -957,7 +966,7 @@ int mp_run_on_all_cpus(void (*func)(void *), void *arg, long expire_us) /* Run on BSP first. */ func(arg); - return mp_run_on_aps(func, arg, expire_us); + return mp_run_on_aps(func, arg, MP_RUN_ON_ALL_CPUS, expire_us); } int mp_park_aps(void) @@ -968,7 +977,8 @@ int mp_park_aps(void) stopwatch_init(&sw); - ret = mp_run_on_aps(park_this_cpu, NULL, 250 * USECS_PER_MSEC); + ret = mp_run_on_aps(park_this_cpu, NULL, MP_RUN_ON_ALL_CPUS, + 250 * USECS_PER_MSEC); duration_msecs = stopwatch_duration_msecs(&sw); |