1 files changed, 10 insertions, 5 deletions

diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 1949b657b092..eeb2ae5ffc58 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -160,7 +160,7 @@ static inline void psurge_clr_ipi(int cpu)
  */
 static unsigned long psurge_smp_message[NR_CPUS];
 
-void psurge_smp_message_recv(struct pt_regs *regs)
+void psurge_smp_message_recv(void)
 {
         int cpu = smp_processor_id();
         int msg;
@@ -174,12 +174,12 @@ void psurge_smp_message_recv(struct pt_regs *regs)
         /* make sure there is a message there */
         for (msg = 0; msg < 4; msg++)
                 if (test_and_clear_bit(msg, &psurge_smp_message[cpu]))
-                        smp_message_recv(msg, regs);
+                        smp_message_recv(msg);
 }
 
-irqreturn_t psurge_primary_intr(int irq, void *d, struct pt_regs *regs)
+irqreturn_t psurge_primary_intr(int irq, void *d)
 {
-        psurge_smp_message_recv(regs);
+        psurge_smp_message_recv();
         return IRQ_HANDLED;
 }
 
@@ -328,6 +328,7 @@ static void __init smp_psurge_kick_cpu(int nr)
 {
         unsigned long start = __pa(__secondary_start_pmac_0) + nr * 8;
         unsigned long a;
+        int i;
 
         /* may need to flush here if secondary bats aren't setup */
         for (a = KERNELBASE; a < KERNELBASE + 0x800000; a += 32)
@@ -340,7 +341,11 @@ static void __init smp_psurge_kick_cpu(int nr)
         mb();
 
         psurge_set_ipi(nr);
-        udelay(10);
+        /*
+         * We can't use udelay here because the timebase is now frozen.
+         */
+        for (i = 0; i < 2000; ++i)
+                barrier();
         psurge_clr_ipi(nr);
 
         if (ppc_md.progress) ppc_md.progress("smp_psurge_kick_cpu - done", 0x354);