diff options
Diffstat (limited to 'include/linux/smp.h')
| -rw-r--r-- | include/linux/smp.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h index cbc9162689d0..80d557ef8a11 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -12,21 +12,36 @@ #include <linux/list.h> #include <linux/cpumask.h> #include <linux/init.h> -#include <linux/llist.h> +#include <linux/smp_types.h> typedef void (*smp_call_func_t)(void *info); typedef bool (*smp_cond_func_t)(int cpu, void *info); + +/* + * structure shares (partial) layout with struct irq_work + */ struct __call_single_data { - struct llist_node llist; + union { + struct __call_single_node node; + struct { + struct llist_node llist; + unsigned int flags; + }; + }; smp_call_func_t func; void *info; - unsigned int flags; }; /* Use __aligned() to avoid to use 2 cache lines for 1 csd */ typedef struct __call_single_data call_single_data_t __aligned(sizeof(struct __call_single_data)); +/* + * Enqueue a llist_node on the call_single_queue; be very careful, read + * flush_smp_call_function_queue() in detail. + */ +extern void __smp_call_single_queue(int cpu, struct llist_node *node); + /* total number of cpus in this system (may exceed NR_CPUS) */ extern unsigned int total_cpus; @@ -227,8 +242,8 @@ static inline int get_boot_cpu_id(void) */ extern void arch_disable_smp_support(void); -extern void arch_enable_nonboot_cpus_begin(void); -extern void arch_enable_nonboot_cpus_end(void); +extern void arch_thaw_secondary_cpus_begin(void); +extern void arch_thaw_secondary_cpus_end(void); void smp_setup_processor_id(void); |