}
static void (*__smp_cross_call)(const struct cpumask *, unsigned int);
+DEFINE_PER_CPU(bool, pending_ipi);
void __init set_smp_cross_call(void (*fn)(const struct cpumask *, unsigned int))
{
__smp_cross_call = fn;
}
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
+{
+ smp_cross_call(mask, IPI_CALL_FUNC);
+}
+
+void arch_send_wakeup_ipi_mask(const struct cpumask *mask)
+{
+ smp_cross_call(mask, IPI_WAKEUP);
+}
+
+void arch_send_call_function_single_ipi(int cpu)
+{
+ smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
+}
+
static const char *ipi_types[NR_IPI] __tracepoint_string = {
#define S(x,s) [x] = s
S(IPI_WAKEUP, "CPU wakeup interrupts"),
static void smp_cross_call(const struct cpumask *target, unsigned int ipinr)
{
+ unsigned int cpu;
+
+ for_each_cpu(cpu, target)
+ per_cpu(pending_ipi, cpu) = true;
+
trace_ipi_raise(target, ipi_types[ipinr]);
__smp_cross_call(target, ipinr);
}
return sum;
}
-void arch_send_call_function_ipi_mask(const struct cpumask *mask)
-{
- smp_cross_call(mask, IPI_CALL_FUNC);
-}
-
-void arch_send_wakeup_ipi_mask(const struct cpumask *mask)
-{
- smp_cross_call(mask, IPI_WAKEUP);
-}
-
-void arch_send_call_function_single_ipi(int cpu)
-{
- smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
-}
-
#ifdef CONFIG_IRQ_WORK
void arch_irq_work_raise(void)
{
if ((unsigned)ipinr < NR_IPI)
trace_ipi_exit_rcuidle(ipi_types[ipinr]);
+
+ per_cpu(pending_ipi, cpu) = false;
+
set_irq_regs(old_regs);
}
void smp_send_reschedule(int cpu)
{
+ BUG_ON(cpu_is_offline(cpu));
smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);
}
#else
#define acpi_table_parse_madt(...) do { } while (0)
#endif
+void (*__smp_cross_call)(const struct cpumask *, unsigned int);
+DEFINE_PER_CPU(bool, pending_ipi);
/*
* Enumerate the possible CPU set from the device tree and build the
}
}
-void (*__smp_cross_call)(const struct cpumask *, unsigned int);
-
void __init set_smp_cross_call(void (*fn)(const struct cpumask *, unsigned int))
{
__smp_cross_call = fn;
static void smp_cross_call(const struct cpumask *target, unsigned int ipinr)
{
+ unsigned int cpu;
+
+ for_each_cpu(cpu, target)
+ per_cpu(pending_ipi, cpu) = true;
+
trace_ipi_raise(target, ipi_types[ipinr]);
__smp_cross_call(target, ipinr);
}
if ((unsigned)ipinr < NR_IPI)
trace_ipi_exit_rcuidle(ipi_types[ipinr]);
+
+ per_cpu(pending_ipi, cpu) = false;
set_irq_regs(old_regs);
}