Merge branch 'mxs/saif' into next/drivers

Conflicts:
	drivers/net/ethernet/cadence/Kconfig

3 files changed, 55 insertions, 31 deletions

diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c
index 404bc52b7806..1d6f4f478fe2 100644
--- a/arch/powerpc/platforms/ps3/interrupt.c
+++ b/arch/powerpc/platforms/ps3/interrupt.c
@@ -88,6 +88,7 @@ struct ps3_private {
         struct ps3_bmp bmp __attribute__ ((aligned (PS3_BMP_MINALIGN)));
         u64 ppe_id;
         u64 thread_id;
+        unsigned long ipi_mask;
 };
 
 static DEFINE_PER_CPU(struct ps3_private, ps3_private);
@@ -144,7 +145,11 @@ static void ps3_chip_unmask(struct irq_data *d)
 static void ps3_chip_eoi(struct irq_data *d)
 {
         const struct ps3_private *pd = irq_data_get_irq_chip_data(d);
-        lv1_end_of_interrupt_ext(pd->ppe_id, pd->thread_id, d->irq);
+
+        /* non-IPIs are EOIed here. */
+
+        if (!test_bit(63 - d->irq, &pd->ipi_mask))
+                lv1_end_of_interrupt_ext(pd->ppe_id, pd->thread_id, d->irq);
 }
 
 /**
@@ -691,6 +696,16 @@ void __init ps3_register_ipi_debug_brk(unsigned int cpu, unsigned int virq)
                 cpu, virq, pd->bmp.ipi_debug_brk_mask);
 }
 
+void __init ps3_register_ipi_irq(unsigned int cpu, unsigned int virq)
+{
+        struct ps3_private *pd = &per_cpu(ps3_private, cpu);
+
+        set_bit(63 - virq, &pd->ipi_mask);
+
+        DBG("%s:%d: cpu %u, virq %u, ipi_mask %lxh\n", __func__, __LINE__,
+                cpu, virq, pd->ipi_mask);
+}
+
 static unsigned int ps3_get_irq(void)
 {
         struct ps3_private *pd = &__get_cpu_var(ps3_private);
@@ -720,6 +735,12 @@ static unsigned int ps3_get_irq(void)
                 BUG();
         }
 #endif
+
+        /* IPIs are EOIed here. */
+
+        if (test_bit(63 - plug, &pd->ipi_mask))
+                lv1_end_of_interrupt_ext(pd->ppe_id, pd->thread_id, plug);
+
         return plug;
 }
 
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index 9a196a88eda7..1a633ed0fe98 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -43,6 +43,7 @@ void ps3_mm_shutdown(void);
 void ps3_init_IRQ(void);
 void ps3_shutdown_IRQ(int cpu);
 void __init ps3_register_ipi_debug_brk(unsigned int cpu, unsigned int virq);
+void __init ps3_register_ipi_irq(unsigned int cpu, unsigned int virq);
 
 /* smp */
 
diff --git a/arch/powerpc/platforms/ps3/smp.c b/arch/powerpc/platforms/ps3/smp.c
index 4c44794faac0..efc1cd8c034a 100644
--- a/arch/powerpc/platforms/ps3/smp.c
+++ b/arch/powerpc/platforms/ps3/smp.c
@@ -59,46 +59,49 @@ static void ps3_smp_message_pass(int cpu, int msg)
 
 static int ps3_smp_probe(void)
 {
-        return 2;
-}
+        int cpu;
 
-static void __init ps3_smp_setup_cpu(int cpu)
-{
-        int result;
-        unsigned int *virqs = per_cpu(ps3_ipi_virqs, cpu);
-        int i;
+        for (cpu = 0; cpu < 2; cpu++) {
+                int result;
+                unsigned int *virqs = per_cpu(ps3_ipi_virqs, cpu);
+                int i;
 
-        DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
+                DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
 
-        /*
-         * Check assumptions on ps3_ipi_virqs[] indexing. If this
-         * check fails, then a different mapping of PPC_MSG_
-         * to index needs to be setup.
-         */
+                /*
+                * Check assumptions on ps3_ipi_virqs[] indexing. If this
+                * check fails, then a different mapping of PPC_MSG_
+                * to index needs to be setup.
+                */
 
-        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);
+                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);
 
-        for (i = 0; i < MSG_COUNT; i++) {
-                result = ps3_event_receive_port_setup(cpu, &virqs[i]);
+                for (i = 0; i < MSG_COUNT; i++) {
+                        result = ps3_event_receive_port_setup(cpu, &virqs[i]);
 
-                if (result)
-                        continue;
+                        if (result)
+                                continue;
 
-                DBG("%s:%d: (%d, %d) => virq %u\n",
-                        __func__, __LINE__, cpu, i, virqs[i]);
+                        DBG("%s:%d: (%d, %d) => virq %u\n",
+                                __func__, __LINE__, cpu, i, virqs[i]);
 
-                result = smp_request_message_ipi(virqs[i], i);
+                        result = smp_request_message_ipi(virqs[i], i);
 
-                if (result)
-                        virqs[i] = NO_IRQ;
-        }
+                        if (result)
+                                virqs[i] = NO_IRQ;
+                        else
+                                ps3_register_ipi_irq(cpu, virqs[i]);
+                }
 
-        ps3_register_ipi_debug_brk(cpu, virqs[PPC_MSG_DEBUGGER_BREAK]);
+                ps3_register_ipi_debug_brk(cpu, virqs[PPC_MSG_DEBUGGER_BREAK]);
 
-        DBG(" <- %s:%d: (%d)\n", __func__, __LINE__, cpu);
+                DBG(" <- %s:%d: (%d)\n", __func__, __LINE__, cpu);
+        }
+
+        return 2;
 }
 
 void ps3_smp_cleanup_cpu(int cpu)
@@ -121,7 +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)