[POWERPC] PS3: Interrupt routine fixups.

Fixups for the ps3 interrupt routines to support all HV device
in a generic way.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

8 files changed, 211 insertions, 106 deletions

diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c
index 631c3009561..9da82c266ba 100644
--- a/arch/powerpc/platforms/ps3/interrupt.c
+++ b/arch/powerpc/platforms/ps3/interrupt.c
@@ -89,7 +89,18 @@ struct ps3_private {
 
 static DEFINE_PER_CPU(struct ps3_private, ps3_private);
 
-int ps3_alloc_irq(enum ps3_cpu_binding cpu, unsigned long outlet,
+/**
+ * ps3_virq_setup - virq related setup.
+ * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
+ * serviced on.
+ * @outlet: The HV outlet from the various create outlet routines.
+ * @virq: The assigned Linux virq.
+ *
+ * Calls irq_create_mapping() to get a virq and sets the chip data to
+ * ps3_private data.
+ */
+
+int ps3_virq_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
 	unsigned int *virq)
 {
 	int result;
@@ -111,17 +122,6 @@ int ps3_alloc_irq(enum ps3_cpu_binding cpu, unsigned long outlet,
 		goto fail_create;
 	}
 
-	/* Binds outlet to cpu + virq. */
-
-	result = lv1_connect_irq_plug_ext(pd->node, pd->cpu, *virq, outlet, 0);
-
-	if (result) {
-		pr_info("%s:%d: lv1_connect_irq_plug_ext failed: %s\n",
-		__func__, __LINE__, ps3_result(result));
-		result = -EPERM;
-		goto fail_connect;
-	}
-
 	pr_debug("%s:%d: outlet %lu => cpu %u, virq %u\n", __func__, __LINE__,
 		outlet, cpu, *virq);
 
@@ -136,94 +136,118 @@ int ps3_alloc_irq(enum ps3_cpu_binding cpu, unsigned long outlet,
 	return result;
 
 fail_set:
-	lv1_disconnect_irq_plug_ext(pd->node, pd->cpu, *virq);
-fail_connect:
 	irq_dispose_mapping(*virq);
 fail_create:
 	return result;
 }
-EXPORT_SYMBOL_GPL(ps3_alloc_irq);
 
-int ps3_free_irq(unsigned int virq)
+/**
+ * ps3_virq_destroy - virq related teardown.
+ * @virq: The assigned Linux virq.
+ *
+ * Clears chip data and calls irq_dispose_mapping() for the virq.
+ */
+
+int ps3_virq_destroy(unsigned int virq)
 {
-	int result;
 	const struct ps3_private *pd = get_irq_chip_data(virq);
 
 	pr_debug("%s:%d: node %lu, cpu %d, virq %u\n", __func__, __LINE__,
 		pd->node, pd->cpu, virq);
 
-	result = lv1_disconnect_irq_plug_ext(pd->node, pd->cpu, virq);
-
-	if (result)
-		pr_info("%s:%d: lv1_disconnect_irq_plug_ext failed: %s\n",
-		__func__, __LINE__, ps3_result(result));
-
 	set_irq_chip_data(virq, NULL);
 	irq_dispose_mapping(virq);
-	return result;
+
+	pr_debug("%s:%d <-\n", __func__, __LINE__);
+	return 0;
 }
-EXPORT_SYMBOL_GPL(ps3_free_irq);
 
 /**
- * ps3_alloc_io_irq - Assign a virq to a system bus device.
+ * ps3_irq_plug_setup - Generic outlet and virq related setup.
  * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
  * serviced on.
- * @interrupt_id: The device interrupt id read from the system repository.
+ * @outlet: The HV outlet from the various create outlet routines.
  * @virq: The assigned Linux virq.
  *
- * An io irq represents a non-virtualized device interrupt.  interrupt_id
- * coresponds to the interrupt number of the interrupt controller.
+ * Sets up virq and connects the irq plug.
  */
 
-int ps3_alloc_io_irq(enum ps3_cpu_binding cpu, unsigned int interrupt_id,
+int ps3_irq_plug_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
 	unsigned int *virq)
 {
 	int result;
-	unsigned long outlet;
+	struct ps3_private *pd;
 
-	result = lv1_construct_io_irq_outlet(interrupt_id, &outlet);
+	result = ps3_virq_setup(cpu, outlet, virq);
 
 	if (result) {
-		pr_debug("%s:%d: lv1_construct_io_irq_outlet failed: %s\n",
-			__func__, __LINE__, ps3_result(result));
-		return result;
+		pr_debug("%s:%d: ps3_virq_setup failed\n", __func__, __LINE__);
+		goto fail_setup;
 	}
 
-	result = ps3_alloc_irq(cpu, outlet, virq);
-	BUG_ON(result);
+	pd = get_irq_chip_data(*virq);
+
+	/* Binds outlet to cpu + virq. */
+
+	result = lv1_connect_irq_plug_ext(pd->node, pd->cpu, *virq, outlet, 0);
 
+	if (result) {
+		pr_info("%s:%d: lv1_connect_irq_plug_ext failed: %s\n",
+		__func__, __LINE__, ps3_result(result));
+		result = -EPERM;
+		goto fail_connect;
+	}
+
+	return result;
+
+fail_connect:
+	ps3_virq_destroy(*virq);
+fail_setup:
 	return result;
 }
-EXPORT_SYMBOL_GPL(ps3_alloc_io_irq);
+EXPORT_SYMBOL_GPL(ps3_irq_plug_setup);
+
+/**
+ * ps3_irq_plug_destroy - Generic outlet and virq related teardown.
+ * @virq: The assigned Linux virq.
+ *
+ * Disconnects the irq plug and tears down virq.
+ * Do not call for system bus event interrupts setup with
+ * ps3_sb_event_receive_port_setup().
+ */
 
-int ps3_free_io_irq(unsigned int virq)
+int ps3_irq_plug_destroy(unsigned int virq)
 {
 	int result;
+	const struct ps3_private *pd = get_irq_chip_data(virq);
 
-	result = lv1_destruct_io_irq_outlet(virq_to_hw(virq));
+	pr_debug("%s:%d: node %lu, cpu %d, virq %u\n", __func__, __LINE__,
+		pd->node, pd->cpu, virq);
+
+	result = lv1_disconnect_irq_plug_ext(pd->node, pd->cpu, virq);
 
 	if (result)
-		pr_debug("%s:%d: lv1_destruct_io_irq_outlet failed: %s\n",
-			__func__, __LINE__, ps3_result(result));
+		pr_info("%s:%d: lv1_disconnect_irq_plug_ext failed: %s\n",
+		__func__, __LINE__, ps3_result(result));
 
-	ps3_free_irq(virq);
+	ps3_virq_destroy(virq);
 
 	return result;
 }
-EXPORT_SYMBOL_GPL(ps3_free_io_irq);
+EXPORT_SYMBOL_GPL(ps3_irq_plug_destroy);
 
 /**
- * ps3_alloc_event_irq - Allocate a virq for use with a system event.
+ * ps3_event_receive_port_setup - Setup an event receive port.
  * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
  * serviced on.
  * @virq: The assigned Linux virq.
  *
  * The virq can be used with lv1_connect_interrupt_event_receive_port() to
- * arrange to receive events, or with ps3_send_event_locally() to signal
- * events.
+ * arrange to receive interrupts from system-bus devices, or with
+ * ps3_send_event_locally() to signal events.
  */
 
-int ps3_alloc_event_irq(enum ps3_cpu_binding cpu, unsigned int *virq)
+int ps3_event_receive_port_setup(enum ps3_cpu_binding cpu, unsigned int *virq)
 {
 	int result;
 	unsigned long outlet;
@@ -237,17 +261,27 @@ int ps3_alloc_event_irq(enum ps3_cpu_binding cpu, unsigned int *virq)
 		return result;
 	}
 
-	result = ps3_alloc_irq(cpu, outlet, virq);
+	result = ps3_irq_plug_setup(cpu, outlet, virq);
 	BUG_ON(result);
 
 	return result;
 }
+EXPORT_SYMBOL_GPL(ps3_event_receive_port_setup);
+
+/**
+ * ps3_event_receive_port_destroy - Destroy an event receive port.
+ * @virq: The assigned Linux virq.
+ *
+ * Since ps3_event_receive_port_destroy destroys the receive port outlet,
+ * SB devices need to call disconnect_interrupt_event_receive_port() before
+ * this.
+ */
 
-int ps3_free_event_irq(unsigned int virq)
+int ps3_event_receive_port_destroy(unsigned int virq)
 {
 	int result;
 
-	pr_debug(" -> %s:%d\n", __func__, __LINE__);
+	pr_debug(" -> %s:%d virq: %u\n", __func__, __LINE__, virq);
 
 	result = lv1_destruct_event_receive_port(virq_to_hw(virq));
 
@@ -255,11 +289,17 @@ int ps3_free_event_irq(unsigned int virq)
 		pr_debug("%s:%d: lv1_destruct_event_receive_port failed: %s\n",
 			__func__, __LINE__, ps3_result(result));
 
-	ps3_free_irq(virq);
+	/* lv1_destruct_event_receive_port() destroys the IRQ plug,
+	 * so don't call ps3_irq_plug_destroy() here.
+	 */
+
+	result = ps3_virq_destroy(virq);
+	BUG_ON(result);
 
 	pr_debug(" <- %s:%d\n", __func__, __LINE__);
 	return result;
 }
+EXPORT_SYMBOL_GPL(ps3_event_receive_port_destroy);
 
 int ps3_send_event_locally(unsigned int virq)
 {
@@ -267,7 +307,7 @@ int ps3_send_event_locally(unsigned int virq)
 }
 
 /**
- * ps3_connect_event_irq - Assign a virq to a system bus device.
+ * ps3_sb_event_receive_port_setup - Setup a system bus event receive port.
  * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
  * serviced on.
  * @did: The HV device identifier read from the system repository.
@@ -278,13 +318,15 @@ int ps3_send_event_locally(unsigned int virq)
  * coresponds to the software interrupt number.
  */
 
-int ps3_connect_event_irq(enum ps3_cpu_binding cpu,
+int ps3_sb_event_receive_port_setup(enum ps3_cpu_binding cpu,
 	const struct ps3_device_id *did, unsigned int interrupt_id,
 	unsigned int *virq)
 {
+	/* this should go in system-bus.c */
+
 	int result;
 
-	result = ps3_alloc_event_irq(cpu, virq);
+	result = ps3_event_receive_port_setup(cpu, virq);
 
 	if (result)
 		return result;
@@ -296,7 +338,7 @@ int ps3_connect_event_irq(enum ps3_cpu_binding cpu,
 		pr_debug("%s:%d: lv1_connect_interrupt_event_receive_port"
 			" failed: %s\n", __func__, __LINE__,
 			ps3_result(result));
-		ps3_free_event_irq(*virq);
+		ps3_event_receive_port_destroy(*virq);
 		*virq = NO_IRQ;
 		return result;
 	}
@@ -306,10 +348,13 @@ int ps3_connect_event_irq(enum ps3_cpu_binding cpu,
 
 	return 0;
 }
+EXPORT_SYMBOL(ps3_sb_event_receive_port_setup);
 
-int ps3_disconnect_event_irq(const struct ps3_device_id *did,
+int ps3_sb_event_receive_port_destroy(const struct ps3_device_id *did,
 	unsigned int interrupt_id, unsigned int virq)
 {
+	/* this should go in system-bus.c */
+
 	int result;
 
 	pr_debug(" -> %s:%d: interrupt_id %u, virq %u\n", __func__, __LINE__,
@@ -323,14 +368,65 @@ int ps3_disconnect_event_irq(const struct ps3_device_id *did,
 			" failed: %s\n", __func__, __LINE__,
 			ps3_result(result));
 
-	ps3_free_event_irq(virq);
+	result = ps3_event_receive_port_destroy(virq);
+	BUG_ON(result);
 
 	pr_debug(" <- %s:%d\n", __func__, __LINE__);
 	return result;
 }
+EXPORT_SYMBOL(ps3_sb_event_receive_port_destroy);
 
 /**
- * ps3_alloc_vuart_irq - Configure the system virtual uart virq.
+ * ps3_io_irq_setup - Setup a system bus io irq.
+ * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
+ * serviced on.
+ * @interrupt_id: The device interrupt id read from the system repository.
+ * @virq: The assigned Linux virq.
+ *
+ * An io irq represents a non-virtualized device interrupt.  interrupt_id
+ * coresponds to the interrupt number of the interrupt controller.
+ */
+
+int ps3_io_irq_setup(enum ps3_cpu_binding cpu, unsigned int interrupt_id,
+	unsigned int *virq)
+{
+	int result;
+	unsigned long outlet;
+
+	result = lv1_construct_io_irq_outlet(interrupt_id, &outlet);
+
+	if (result) {
+		pr_debug("%s:%d: lv1_construct_io_irq_outlet failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+		return result;
+	}
+
+	result = ps3_irq_plug_setup(cpu, outlet, virq);
+	BUG_ON(result);
+
+	return result;
+}
+EXPORT_SYMBOL_GPL(ps3_io_irq_setup);
+
+int ps3_io_irq_destroy(unsigned int virq)
+{
+	int result;
+
+	result = lv1_destruct_io_irq_outlet(virq_to_hw(virq));
+
+	if (result)
+		pr_debug("%s:%d: lv1_destruct_io_irq_outlet failed: %s\n",
+			__func__, __LINE__, ps3_result(result));
+
+	result = ps3_irq_plug_destroy(virq);
+	BUG_ON(result);
+
+	return result;
+}
+EXPORT_SYMBOL_GPL(ps3_io_irq_destroy);
+
+/**
+ * ps3_vuart_irq_setup - Setup the system virtual uart virq.
  * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
  * serviced on.
  * @virt_addr_bmp: The caller supplied virtual uart interrupt bitmap.
@@ -340,7 +436,7 @@ int ps3_disconnect_event_irq(const struct ps3_device_id *did,
  * freeing the interrupt will return a wrong state error.
  */
 
-int ps3_alloc_vuart_irq(enum ps3_cpu_binding cpu, void* virt_addr_bmp,
+int ps3_vuart_irq_setup(enum ps3_cpu_binding cpu, void* virt_addr_bmp,
 	unsigned int *virq)
 {
 	int result;
@@ -359,13 +455,13 @@ int ps3_alloc_vuart_irq(enum ps3_cpu_binding cpu, void* virt_addr_bmp,
 		return result;
 	}
 
-	result = ps3_alloc_irq(cpu, outlet, virq);
+	result = ps3_irq_plug_setup(cpu, outlet, virq);
 	BUG_ON(result);
 
 	return result;
 }
 
-int ps3_free_vuart_irq(unsigned int virq)
+int ps3_vuart_irq_destroy(unsigned int virq)
 {
 	int result;
 
@@ -377,13 +473,14 @@ int ps3_free_vuart_irq(unsigned int virq)
 		return result;
 	}
 
-	ps3_free_irq(virq);
+	result = ps3_irq_plug_destroy(virq);
+	BUG_ON(result);
 
 	return result;
 }
 
 /**
- * ps3_alloc_spe_irq - Configure an spe virq.
+ * ps3_spe_irq_setup - Setup an spe virq.
  * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
  * serviced on.
  * @spe_id: The spe_id returned from lv1_construct_logical_spe().
@@ -392,7 +489,7 @@ int ps3_free_vuart_irq(unsigned int virq)
  *
  */
 
-int ps3_alloc_spe_irq(enum ps3_cpu_binding cpu, unsigned long spe_id,
+int ps3_spe_irq_setup(enum ps3_cpu_binding cpu, unsigned long spe_id,
 	unsigned int class, unsigned int *virq)
 {
 	int result;
@@ -408,15 +505,16 @@ int ps3_alloc_spe_irq(enum ps3_cpu_binding cpu, unsigned long spe_id,
 		return result;
 	}
 
-	result = ps3_alloc_irq(cpu, outlet, virq);
+	result = ps3_irq_plug_setup(cpu, outlet, virq);
 	BUG_ON(result);
 
 	return result;
 }
 
-int ps3_free_spe_irq(unsigned int virq)
+int ps3_spe_irq_destroy(unsigned int virq)
 {
-	ps3_free_irq(virq);
+	int result = ps3_irq_plug_destroy(virq);
+	BUG_ON(result);
 	return 0;
 }
 
diff --git a/arch/powerpc/platforms/ps3/smp.c b/arch/powerpc/platforms/ps3/smp.c
index 6fb887961a6..8729348c060 100644
--- a/arch/powerpc/platforms/ps3/smp.c
+++ b/arch/powerpc/platforms/ps3/smp.c
@@ -110,7 +110,7 @@ static void __init ps3_smp_setup_cpu(int cpu)
 	BUILD_BUG_ON(PPC_MSG_DEBUGGER_BREAK != 3);
 
 	for (i = 0; i < MSG_COUNT; i++) {
-		result = ps3_alloc_event_irq(cpu, &virqs[i]);
+		result = ps3_event_receive_port_setup(cpu, &virqs[i]);
 
 		if (result)
 			continue;
@@ -134,11 +134,13 @@ void ps3_smp_cleanup_cpu(int cpu)
 	int i;
 
 	DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
+
 	for (i = 0; i < MSG_COUNT; i++) {
-		ps3_free_event_irq(virqs[i]);
 		free_irq(virqs[i], (void*)(long)i);
+		ps3_event_receive_port_destroy(virqs[i]);
 		virqs[i] = NO_IRQ;
 	}
+
 	DBG(" <- %s:%d: (%d)\n", __func__, __LINE__, cpu);
 }
 
diff --git a/arch/powerpc/platforms/ps3/spu.c b/arch/powerpc/platforms/ps3/spu.c
index af8efe3c459..651437cb2c1 100644
--- a/arch/powerpc/platforms/ps3/spu.c
+++ b/arch/powerpc/platforms/ps3/spu.c
@@ -230,19 +230,19 @@ static int __init setup_interrupts(struct spu *spu)
 {
 	int result;
 
-	result = ps3_alloc_spe_irq(PS3_BINDING_CPU_ANY, spu_pdata(spu)->spe_id,
+	result = ps3_spe_irq_setup(PS3_BINDING_CPU_ANY, spu_pdata(spu)->spe_id,
 		0, &spu->irqs[0]);
 
 	if (result)
 		goto fail_alloc_0;
 
-	result = ps3_alloc_spe_irq(PS3_BINDING_CPU_ANY, spu_pdata(spu)->spe_id,
+	result = ps3_spe_irq_setup(PS3_BINDING_CPU_ANY, spu_pdata(spu)->spe_id,
 		1, &spu->irqs[1]);
 
 	if (result)
 		goto fail_alloc_1;
 
-	result = ps3_alloc_spe_irq(PS3_BINDING_CPU_ANY, spu_pdata(spu)->spe_id,
+	result = ps3_spe_irq_setup(PS3_BINDING_CPU_ANY, spu_pdata(spu)->spe_id,
 		2, &spu->irqs[2]);
 
 	if (result)
@@ -251,9 +251,9 @@ static int __init setup_interrupts(struct spu *spu)
 	return result;
 
 fail_alloc_2:
-	ps3_free_spe_irq(spu->irqs[1]);
+	ps3_spe_irq_destroy(spu->irqs[1]);
 fail_alloc_1:
-	ps3_free_spe_irq(spu->irqs[0]);
+	ps3_spe_irq_destroy(spu->irqs[0]);
 fail_alloc_0:
 	spu->irqs[0] = spu->irqs[1] = spu->irqs[2] = NO_IRQ;
 	return result;
@@ -301,9 +301,9 @@ static int ps3_destroy_spu(struct spu *spu)
 	result = lv1_disable_logical_spe(spu_pdata(spu)->spe_id, 0);
 	BUG_ON(result);
 
-	ps3_free_spe_irq(spu->irqs[2]);
-	ps3_free_spe_irq(spu->irqs[1]);
-	ps3_free_spe_irq(spu->irqs[0]);
+	ps3_spe_irq_destroy(spu->irqs[2]);
+	ps3_spe_irq_destroy(spu->irqs[1]);
+	ps3_spe_irq_destroy(spu->irqs[0]);
 
 	spu->irqs[0] = spu->irqs[1] = spu->irqs[2] = NO_IRQ;
 
diff --git a/drivers/ps3/vuart.c b/drivers/ps3/vuart.c
index 7d7cab1d91b..ec2d36a1bc6 100644
--- a/drivers/ps3/vuart.c
+++ b/drivers/ps3/vuart.c
@@ -886,12 +886,12 @@ static int ps3_vuart_probe(struct device *_dev)
 
 	if (++vuart_bus_priv.use_count == 1) {
 
-		result = ps3_alloc_vuart_irq(PS3_BINDING_CPU_ANY,
+		result = ps3_vuart_irq_setup(PS3_BINDING_CPU_ANY,
 			(void*)&vuart_bus_priv.bmp.status, &vuart_bus_priv.virq);
 
 		if (result) {
 			dev_dbg(&dev->core,
-				"%s:%d: ps3_alloc_vuart_irq failed (%d)\n",
+				"%s:%d: ps3_vuart_irq_setup failed (%d)\n",
 				__func__, __LINE__, result);
 			result = -EPERM;
 			goto fail_alloc_irq;
@@ -937,7 +937,7 @@ static int ps3_vuart_probe(struct device *_dev)
 fail_probe:
 	ps3_vuart_set_interrupt_mask(dev, 0);
 fail_request_irq:
-	ps3_free_vuart_irq(vuart_bus_priv.virq);
+	ps3_vuart_irq_destroy(vuart_bus_priv.virq);
 	vuart_bus_priv.virq = NO_IRQ;
 fail_alloc_irq:
 	--vuart_bus_priv.use_count;
@@ -975,7 +975,7 @@ static int ps3_vuart_remove(struct device *_dev)
 	if (--vuart_bus_priv.use_count == 0) {
 		BUG();
 		free_irq(vuart_bus_priv.virq, &vuart_bus_priv);
-		ps3_free_vuart_irq(vuart_bus_priv.virq);
+		ps3_vuart_irq_destroy(vuart_bus_priv.virq);
 		vuart_bus_priv.virq = NO_IRQ;
 	}
 
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c
index 4d781a2a980..29dcd27b55d 100644
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -104,7 +104,7 @@ static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev)
 	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
 		__LINE__, dev->m_region->lpar_addr);
 
-	result = ps3_alloc_io_irq(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
+	result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
 
 	if (result) {
 		dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
@@ -162,7 +162,7 @@ fail_add_hcd:
 fail_ioremap:
 	usb_put_hcd(hcd);
 fail_create_hcd:
-	ps3_free_io_irq(virq);
+	ps3_io_irq_destroy(virq);
 fail_irq:
 	ps3_free_mmio_region(dev->m_region);
 fail_mmio:
diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c
index 62283a3926d..93a6eb0de2d 100644
--- a/drivers/usb/host/ohci-ps3.c
+++ b/drivers/usb/host/ohci-ps3.c
@@ -107,7 +107,7 @@ static int ps3_ohci_sb_probe(struct ps3_system_bus_device *dev)
 	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
 		__LINE__, dev->m_region->lpar_addr);
 
-	result = ps3_alloc_io_irq(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
+	result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
 
 	if (result) {
 		dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
@@ -165,7 +165,7 @@ fail_add_hcd:
 fail_ioremap:
 	usb_put_hcd(hcd);
 fail_create_hcd:
-	ps3_free_io_irq(virq);
+	ps3_io_irq_destroy(virq);
 fail_irq:
 	ps3_free_mmio_region(dev->m_region);
 fail_mmio:
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index 81e43cda7d8..a9ca4986645 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -885,8 +885,8 @@ static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo, void *dev)
 	}
 
 	ps3fb.dev = dev;
-	error = ps3_alloc_irq(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
-			      &ps3fb.irq_no);
+	error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
+				   &ps3fb.irq_no);
 	if (error) {
 		printk(KERN_ERR "%s: ps3_alloc_irq failed %d\n", __FUNCTION__,
 		       error);
@@ -898,7 +898,7 @@ static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo, void *dev)
 	if (error) {
 		printk(KERN_ERR "%s: request_irq failed %d\n", __FUNCTION__,
 		       error);
-		ps3_free_irq(ps3fb.irq_no);
+		ps3_irq_plug_destroy(ps3fb.irq_no);
 		return error;
 	}
 
@@ -1059,7 +1059,7 @@ err_framebuffer_release:
 	framebuffer_release(info);
 err_free_irq:
 	free_irq(ps3fb.irq_no, ps3fb.dev);
-	ps3_free_irq(ps3fb.irq_no);
+	ps3_irq_plug_destroy(ps3fb.irq_no);
 err_iounmap_dinfo:
 	iounmap((u8 __iomem *)ps3fb.dinfo);
 err_gpu_context_free:
@@ -1075,7 +1075,7 @@ static void ps3fb_shutdown(struct platform_device *dev)
 	ps3fb_flip_ctl(0);	/* flip off */
 	ps3fb.dinfo->irq.mask = 0;
 	free_irq(ps3fb.irq_no, ps3fb.dev);
-	ps3_free_irq(ps3fb.irq_no);
+	ps3_irq_plug_destroy(ps3fb.irq_no);
 	iounmap((u8 __iomem *)ps3fb.dinfo);
 }
 
@@ -1085,7 +1085,7 @@ void ps3fb_cleanup(void)
 
 	if (ps3fb.irq_no) {
 		free_irq(ps3fb.irq_no, ps3fb.dev);
-		ps3_free_irq(ps3fb.irq_no);
+		ps3_irq_plug_destroy(ps3fb.irq_no);
 	}
 	iounmap((u8 __iomem *)ps3fb.dinfo);
 
diff --git a/include/asm-powerpc/ps3.h b/include/asm-powerpc/ps3.h
index 821581a8b64..13c372df99e 100644
--- a/include/asm-powerpc/ps3.h
+++ b/include/asm-powerpc/ps3.h
@@ -167,26 +167,31 @@ enum ps3_cpu_binding {
 	PS3_BINDING_CPU_1 = 1,
 };
 
-int ps3_alloc_io_irq(enum ps3_cpu_binding cpu, unsigned int interrupt_id,
+int ps3_virq_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
 	unsigned int *virq);
-int ps3_free_io_irq(unsigned int virq);
-int ps3_alloc_event_irq(enum ps3_cpu_binding cpu, unsigned int *virq);
-int ps3_free_event_irq(unsigned int virq);
+int ps3_virq_destroy(unsigned int virq);
+int ps3_irq_plug_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
+	unsigned int *virq);
+int ps3_irq_plug_destroy(unsigned int virq);
+int ps3_event_receive_port_setup(enum ps3_cpu_binding cpu, unsigned int *virq);
+int ps3_event_receive_port_destroy(unsigned int virq);
 int ps3_send_event_locally(unsigned int virq);
-int ps3_connect_event_irq(enum ps3_cpu_binding cpu,
-	const struct ps3_device_id *did, unsigned int interrupt_id,
+
+int ps3_io_irq_setup(enum ps3_cpu_binding cpu, unsigned int interrupt_id,
 	unsigned int *virq);
-int ps3_disconnect_event_irq(const struct ps3_device_id *did,
-	unsigned int interrupt_id, unsigned int virq);
-int ps3_alloc_vuart_irq(enum ps3_cpu_binding cpu, void* virt_addr_bmp,
+int ps3_io_irq_destroy(unsigned int virq);
+int ps3_vuart_irq_setup(enum ps3_cpu_binding cpu, void* virt_addr_bmp,
 	unsigned int *virq);
-int ps3_free_vuart_irq(unsigned int virq);
-int ps3_alloc_spe_irq(enum ps3_cpu_binding cpu, unsigned long spe_id,
+int ps3_vuart_irq_destroy(unsigned int virq);
+int ps3_spe_irq_setup(enum ps3_cpu_binding cpu, unsigned long spe_id,
 	unsigned int class, unsigned int *virq);
-int ps3_free_spe_irq(unsigned int virq);
-int ps3_alloc_irq(enum ps3_cpu_binding cpu, unsigned long outlet,
+int ps3_spe_irq_destroy(unsigned int virq);
+
+int ps3_sb_event_receive_port_setup(enum ps3_cpu_binding cpu,
+	const struct ps3_device_id *did, unsigned int interrupt_id,
 	unsigned int *virq);
-int ps3_free_irq(unsigned int virq);
+int ps3_sb_event_receive_port_destroy(const struct ps3_device_id *did,
+	unsigned int interrupt_id, unsigned int virq);
 
 /* lv1 result codes */