sys/kern/kern_timeout.c

64 #include <machine/cpu.h>
115  * The callout cpu exec entities represent informations necessary for
117  * necessary for migrating callouts to the new callout cpu. In particular,
138  * There is one struct callout_cpu per cpu, holding all relevant
172 #define	CC_CPU(cpu)	(&cc_cpu[(cpu)])
176 #define	CC_CPU(cpu)	&cc_cpu
185 static void	callout_cpu_init(struct callout_cpu *cc, int cpu);
212  * Resets the execution entity tied to a specific callout cpu.
231  * Checks if migration is requested by a specific callout cpu.
285  * Initialize the per-cpu callout structures.
288 callout_cpu_init(struct callout_cpu *cc, int cpu)
305 	    "callwheel cpu %d", cpu);
318  * Switches the cpu tied to a specific callout.
319  * The function expects a locked incoming callout cpu and returns with
320  * locked outcoming callout cpu.
331 	 * Avoid interrupts and preemption firing after the callout cpu
333 	 * may be willing to acquire the callout cpu lock.
354 	int cpu;
362 	CPU_FOREACH(cpu) {
363 		if (cpu == timeout_cpu)
365 		cc = CC_CPU(cpu);
367 		callout_cpu_init(cc, cpu);
523 	int cpu;
526 		cpu = c->c_cpu;
528 		if (cpu == CPUBLOCK) {
534 		cc = CC_CPU(cpu);
536 		if (cpu == c->c_cpu)
546     void *arg, int cpu, int flags)
579 		cpu_new_callout(cpu, sbt, c->c_time);
919     void (*ftn)(void *), void *arg, int cpu, int flags)
927 	if (cpu == -1) {
929 	} else if ((cpu >= MAXCPU) ||
930 		   ((CC_CPU(cpu))->cc_inited == 0)) {
932 		panic("Invalid CPU in callout %d", cpu);
995 		cpu = c->c_cpu;
1026 			cc_migration_cpu(cc, direct) = cpu;
1056 	if (c->c_cpu != cpu) {
1074 			cc_migration_cpu(cc, direct) = cpu;
1084 			    (u_int)(to_sbt & 0xffffffff), cpu);
1088 		cc = callout_cpu_switch(c, cc, cpu);
1092 	callout_cc_add(c, cc, to_sbt, precision, ftn, arg, cpu, flags);
1105 callout_schedule_on(struct callout *c, int to_ticks, int cpu)
1107 	return callout_reset_on(c, to_ticks, c->c_func, c->c_arg, cpu);
1173 	 * If the callout was migrating while the callout cpu lock was
1478 	int cpu;
1492 	CPU_FOREACH(cpu) {
1493 		cc = CC_CPU(cpu);