diff options
| author | Ian Moffett <ian@osmora.org> | 2025-10-15 21:05:31 -0400 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2025-10-15 21:05:31 -0400 |
| commit | 191a6c47bdab11abc3df94ba4551346969d0fe86 (patch) | |
| tree | 1a6d7ba37ca3c9442b2200e65d6eb995bf5f0f91 /src/sys | |
| parent | 69bb0f15996ff36161ef9db400286997189f04ab (diff) | |
kern/amd64: mp: Add idle threads per core
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'src/sys')
| -rw-r--r-- | src/sys/arch/amd64/cpu/cpu_mp.c | 12 | ||||
| -rw-r--r-- | src/sys/os/os_init.c | 2 |
2 files changed, 13 insertions, 1 deletions
diff --git a/src/sys/arch/amd64/cpu/cpu_mp.c b/src/sys/arch/amd64/cpu/cpu_mp.c index c189c77..7b691e3 100644 --- a/src/sys/arch/amd64/cpu/cpu_mp.c +++ b/src/sys/arch/amd64/cpu/cpu_mp.c @@ -56,10 +56,19 @@ static volatile struct limine_smp_request g_smp_req = { .revision = 0 }; +static void +cpu_idle(void *) +{ + for (;;) { + __ASMV("pause"); + } +} + __dead static void ap_entry(struct limine_smp_info *) { struct pcore *pcore; + struct proc *curidle; spinlock_acquire(&lock); pcore = kalloc(sizeof(*pcore)); @@ -76,6 +85,7 @@ ap_entry(struct limine_smp_info *) corelist[ncores_up - 1] = pcore; atomic_inc_64(&ncores_up); + proc_ktd(&curidle, cpu_idle); spinlock_release(&lock); md_proc_idle(); @@ -106,6 +116,7 @@ bsp_ap_startup(void) struct limine_smp_response *resp = g_smp_req.response; struct limine_smp_info **cpus; struct mdcore *mdcore; + struct proc *curidle; uint32_t ncores, tmp; /* Sanity check */ @@ -139,6 +150,7 @@ bsp_ap_startup(void) printf("mp: bringing APs online...\n"); mdcore = &g_bsp.md; + proc_ktd(&curidle, cpu_idle); for (int i = 0; i < ncores; ++i) { if (mdcore->apic_id == cpus[i]->lapic_id) { continue; diff --git a/src/sys/os/os_init.c b/src/sys/os/os_init.c index 56488ae..8287f1a 100644 --- a/src/sys/os/os_init.c +++ b/src/sys/os/os_init.c @@ -73,11 +73,11 @@ main(void) vm_init(); cpu_init(&g_bsp); - bsp_ap_startup(); vfs_init(); ns_init(); sched_init(); + bsp_ap_startup(); /* Initialize generic modules */ __MODULES_INIT(MODTYPE_GENERIC); |