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Diffstat (limited to 'arch/powerpc/platforms/iseries/smp.c')
-rw-r--r--arch/powerpc/platforms/iseries/smp.c45
1 files changed, 7 insertions, 38 deletions
diff --git a/arch/powerpc/platforms/iseries/smp.c b/arch/powerpc/platforms/iseries/smp.c
index 6c6029914db..e3265adde5d 100644
--- a/arch/powerpc/platforms/iseries/smp.c
+++ b/arch/powerpc/platforms/iseries/smp.c
@@ -42,57 +42,23 @@
#include <asm/cputable.h>
#include <asm/system.h>
-#include "smp.h"
-
-static unsigned long iSeries_smp_message[NR_CPUS];
-
-void iSeries_smp_message_recv(void)
-{
- int cpu = smp_processor_id();
- int msg;
-
- if (num_online_cpus() < 2)
- return;
-
- for (msg = 0; msg < 4; msg++)
- if (test_and_clear_bit(msg, &iSeries_smp_message[cpu]))
- smp_message_recv(msg);
-}
-
-static inline void smp_iSeries_do_message(int cpu, int msg)
+static void smp_iSeries_cause_ipi(int cpu, unsigned long data)
{
- set_bit(msg, &iSeries_smp_message[cpu]);
HvCall_sendIPI(&(paca[cpu]));
}
-static void smp_iSeries_message_pass(int target, int msg)
-{
- int i;
-
- if (target < NR_CPUS)
- smp_iSeries_do_message(target, msg);
- else {
- for_each_online_cpu(i) {
- if ((target == MSG_ALL_BUT_SELF) &&
- (i == smp_processor_id()))
- continue;
- smp_iSeries_do_message(i, msg);
- }
- }
-}
-
static int smp_iSeries_probe(void)
{
return cpumask_weight(cpu_possible_mask);
}
-static void smp_iSeries_kick_cpu(int nr)
+static int smp_iSeries_kick_cpu(int nr)
{
BUG_ON((nr < 0) || (nr >= NR_CPUS));
/* Verify that our partition has a processor nr */
if (lppaca_of(nr).dyn_proc_status >= 2)
- return;
+ return -ENOENT;
/* The processor is currently spinning, waiting
* for the cpu_start field to become non-zero
@@ -100,6 +66,8 @@ static void smp_iSeries_kick_cpu(int nr)
* continue on to secondary_start in iSeries_head.S
*/
paca[nr].cpu_start = 1;
+
+ return 0;
}
static void __devinit smp_iSeries_setup_cpu(int nr)
@@ -107,7 +75,8 @@ static void __devinit smp_iSeries_setup_cpu(int nr)
}
static struct smp_ops_t iSeries_smp_ops = {
- .message_pass = smp_iSeries_message_pass,
+ .message_pass = smp_muxed_ipi_message_pass,
+ .cause_ipi = smp_iSeries_cause_ipi,
.probe = smp_iSeries_probe,
.kick_cpu = smp_iSeries_kick_cpu,
.setup_cpu = smp_iSeries_setup_cpu,