Add send_pull_timers() support for x86_32 arch

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index 337ce0c44f92..e83f79de863c 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -150,6 +150,16 @@ void native_send_call_func_ipi(const struct cpumask *mask)
         free_cpumask_var(allbutself);
 }
 
+/* trigger timers on remote cpu */
+void smp_send_pull_timers(int cpu)
+{
+        if (unlikely(cpu_is_offline(cpu))) {
+                WARN_ON(1);
+                return;
+        }
+        apic->send_IPI_mask(cpumask_of(cpu), PULL_TIMERS_VECTOR);
+}
+
 /*
  * this function calls the 'stop' function on all other CPUs in the system.
  */
@@ -230,6 +240,14 @@ void smp_call_function_single_interrupt(struct pt_regs *regs)
         irq_exit();
 }
 
+extern void hrtimer_pull(void);
+
+void smp_pull_timers_interrupt(struct pt_regs *regs)
+{
+        ack_APIC_irq();
+        TRACE("pull timer interrupt\n");
+}
+
 struct smp_ops smp_ops = {
         .smp_prepare_boot_cpu   = native_smp_prepare_boot_cpu,
         .smp_prepare_cpus       = native_smp_prepare_cpus,