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Diffstat (limited to 'arch/powerpc/platforms/ps3/smp.c')
-rw-r--r--arch/powerpc/platforms/ps3/smp.c80
1 files changed, 33 insertions, 47 deletions
diff --git a/arch/powerpc/platforms/ps3/smp.c b/arch/powerpc/platforms/ps3/smp.c
index 51ffde40af2..b358bec6c8c 100644
--- a/arch/powerpc/platforms/ps3/smp.c
+++ b/arch/powerpc/platforms/ps3/smp.c
@@ -39,7 +39,7 @@
#define MSG_COUNT 4
static DEFINE_PER_CPU(unsigned int [MSG_COUNT], ps3_ipi_virqs);
-static void do_message_pass(int target, int msg)
+static void ps3_smp_message_pass(int cpu, int msg)
{
int result;
unsigned int virq;
@@ -49,72 +49,59 @@ static void do_message_pass(int target, int msg)
return;
}
- virq = per_cpu(ps3_ipi_virqs, target)[msg];
+ virq = per_cpu(ps3_ipi_virqs, cpu)[msg];
result = ps3_send_event_locally(virq);
if (result)
DBG("%s:%d: ps3_send_event_locally(%d, %d) failed"
- " (%d)\n", __func__, __LINE__, target, msg, result);
+ " (%d)\n", __func__, __LINE__, cpu, msg, result);
}
-static void ps3_smp_message_pass(int target, int msg)
+static int __init ps3_smp_probe(void)
{
int cpu;
- if (target < NR_CPUS)
- do_message_pass(target, msg);
- else if (target == MSG_ALL_BUT_SELF) {
- for_each_online_cpu(cpu)
- if (cpu != smp_processor_id())
- do_message_pass(cpu, msg);
- } else {
- for_each_online_cpu(cpu)
- do_message_pass(cpu, msg);
- }
-}
+ for (cpu = 0; cpu < 2; cpu++) {
+ int result;
+ unsigned int *virqs = per_cpu(ps3_ipi_virqs, cpu);
+ int i;
-static int ps3_smp_probe(void)
-{
- return 2;
-}
+ DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
-static void __init ps3_smp_setup_cpu(int cpu)
-{
- int result;
- unsigned int *virqs = per_cpu(ps3_ipi_virqs, cpu);
- int i;
+ /*
+ * Check assumptions on ps3_ipi_virqs[] indexing. If this
+ * check fails, then a different mapping of PPC_MSG_
+ * to index needs to be setup.
+ */
- DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
+ BUILD_BUG_ON(PPC_MSG_CALL_FUNCTION != 0);
+ BUILD_BUG_ON(PPC_MSG_RESCHEDULE != 1);
+ BUILD_BUG_ON(PPC_MSG_TICK_BROADCAST != 2);
+ BUILD_BUG_ON(PPC_MSG_DEBUGGER_BREAK != 3);
- /*
- * Check assumptions on ps3_ipi_virqs[] indexing. If this
- * check fails, then a different mapping of PPC_MSG_
- * to index needs to be setup.
- */
+ for (i = 0; i < MSG_COUNT; i++) {
+ result = ps3_event_receive_port_setup(cpu, &virqs[i]);
- BUILD_BUG_ON(PPC_MSG_CALL_FUNCTION != 0);
- BUILD_BUG_ON(PPC_MSG_RESCHEDULE != 1);
- BUILD_BUG_ON(PPC_MSG_CALL_FUNC_SINGLE != 2);
- BUILD_BUG_ON(PPC_MSG_DEBUGGER_BREAK != 3);
+ if (result)
+ continue;
- for (i = 0; i < MSG_COUNT; i++) {
- result = ps3_event_receive_port_setup(cpu, &virqs[i]);
+ DBG("%s:%d: (%d, %d) => virq %u\n",
+ __func__, __LINE__, cpu, i, virqs[i]);
- if (result)
- continue;
+ result = smp_request_message_ipi(virqs[i], i);
- DBG("%s:%d: (%d, %d) => virq %u\n",
- __func__, __LINE__, cpu, i, virqs[i]);
+ if (result)
+ virqs[i] = NO_IRQ;
+ else
+ ps3_register_ipi_irq(cpu, virqs[i]);
+ }
- result = smp_request_message_ipi(virqs[i], i);
+ ps3_register_ipi_debug_brk(cpu, virqs[PPC_MSG_DEBUGGER_BREAK]);
- if (result)
- virqs[i] = NO_IRQ;
+ DBG(" <- %s:%d: (%d)\n", __func__, __LINE__, cpu);
}
- ps3_register_ipi_debug_brk(cpu, virqs[PPC_MSG_DEBUGGER_BREAK]);
-
- DBG(" <- %s:%d: (%d)\n", __func__, __LINE__, cpu);
+ return 2;
}
void ps3_smp_cleanup_cpu(int cpu)
@@ -137,7 +124,6 @@ static struct smp_ops_t ps3_smp_ops = {
.probe = ps3_smp_probe,
.message_pass = ps3_smp_message_pass,
.kick_cpu = smp_generic_kick_cpu,
- .setup_cpu = ps3_smp_setup_cpu,
};
void smp_init_ps3(void)