diff options
Diffstat (limited to 'kern/percpu.c')
| -rw-r--r-- | kern/percpu.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/kern/percpu.c b/kern/percpu.c index 53861a30..f344bd70 100644 --- a/kern/percpu.c +++ b/kern/percpu.c @@ -26,6 +26,7 @@ #include <kern/macros.h> #include <kern/panic.h> #include <kern/percpu.h> +#include <kern/slist.h> #include <machine/cpu.h> #include <vm/vm_kmem.h> #include <vm/vm_page.h> @@ -36,6 +37,14 @@ static void *percpu_area_content __initdata; static size_t percpu_area_size __initdata; static int percpu_skip_warning __initdata; +static struct slist percpu_ops __initdata; + +static void __init +percpu_op_run(const struct percpu_op *op) +{ + op->fn(); +} + static int __init percpu_bootstrap(void) { @@ -51,6 +60,8 @@ percpu_setup(void) struct vm_page *page; unsigned int order; + slist_init(&percpu_ops); + percpu_area_size = &_percpu_end - &_percpu; log_info("percpu: max_cpus: %u, section size: %zuk", CONFIG_MAX_CPUS, percpu_area_size >> 10); @@ -76,6 +87,15 @@ INIT_OP_DEFINE(percpu_setup, INIT_OP_DEP(percpu_bootstrap, true), INIT_OP_DEP(vm_page_setup, true)); +void __init +percpu_register_op(struct percpu_op *op) +{ + slist_insert_tail(&percpu_ops, &op->node); + + /* Run on BSP */ + percpu_op_run(op); +} + int __init percpu_add(unsigned int cpu) { @@ -116,6 +136,16 @@ out: return 0; } +void __init +percpu_ap_setup(void) +{ + struct percpu_op *op; + + slist_for_each_entry(&percpu_ops, op, node) { + percpu_op_run(op); + } +} + static int __init percpu_cleanup(void) { |