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-rw-r--r--arch/powerpc/sysdev/mpic.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 02b4d2488bfd..3948e759d41a 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -904,4 +904,25 @@ void mpic_request_ipis(void)
printk("IPIs requested... \n");
}
+
+void smp_mpic_message_pass(int target, int msg)
+{
+ /* make sure we're sending something that translates to an IPI */
+ if ((unsigned int)msg > 3) {
+ printk("SMP %d: smp_message_pass: unknown msg %d\n",
+ smp_processor_id(), msg);
+ return;
+ }
+ switch (target) {
+ case MSG_ALL:
+ mpic_send_ipi(msg, 0xffffffff);
+ break;
+ case MSG_ALL_BUT_SELF:
+ mpic_send_ipi(msg, 0xffffffff & ~(1 << smp_processor_id()));
+ break;
+ default:
+ mpic_send_ipi(msg, 1 << target);
+ break;
+ }
+}
#endif /* CONFIG_SMP */