powerpc/ps3: Use smp_request_message_ipi

ps3 has 4 ipis per cpu and can use the new smp_request_message_ipi to
reduce path length when receiving an ipi.

This has the side effect of setting IRQF_PERCPU.

Signed-off-by: Milton Miller <miltonm@bga.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/ps3/smp.c b/arch/powerpc/platforms/ps3/smp.c
index a0927a3..f6e04bc 100644 (file)
--- a/arch/powerpc/platforms/ps3/smp.c
+++ b/arch/powerpc/platforms/ps3/smp.c
@@ -32,12 +32,6 @@
 #define DBG pr_debug
 #endif
 
-static irqreturn_t ipi_function_handler(int irq, void *msg)
-{
-       smp_message_recv((int)(long)msg);
-       return IRQ_HANDLED;
-}
-
 /**
   * ps3_ipi_virqs - a per cpu array of virqs for ipi use
   */
@@ -45,13 +39,6 @@ static irqreturn_t ipi_function_handler(int irq, void *msg)
 #define MSG_COUNT 4
 static DEFINE_PER_CPU(unsigned int, ps3_ipi_virqs[MSG_COUNT]);
 
-static const char *names[MSG_COUNT] = {
-       "ipi call",
-       "ipi reschedule",
-       "ipi migrate",
-       "ipi debug brk"
-};
-
 static void do_message_pass(int target, int msg)
 {
        int result;
@@ -119,8 +106,7 @@ static void __init ps3_smp_setup_cpu(int cpu)
                DBG("%s:%d: (%d, %d) => virq %u\n",
                        __func__, __LINE__, cpu, i, virqs[i]);
 
-               result = request_irq(virqs[i], ipi_function_handler,
-                       IRQF_DISABLED, names[i], (void*)(long)i);
+               result = smp_request_message_ipi(virqs[i], i);
 
                if (result)
                        virqs[i] = NO_IRQ;