Commit dc4f60c2 authored by Geoff Levand's avatar Geoff Levand Committed by Paul Mackerras
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[POWERPC] PS3: Interrupt routine fixups. 



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

Signed-off-by: default avatarGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 12828856

arch/powerpc/platforms/ps3/interrupt.c

+166 −68
Original line number Diff line number Diff line
@@ -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",

		pr_debug("%s:%d: ps3_virq_setup failed\n", __func__, __LINE__);

		goto fail_setup;

	}



	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));

		return result;

		result = -EPERM;

		goto fail_connect;

	}



	result = ps3_alloc_irq(cpu, outlet, virq);

	BUG_ON(result);

	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);



int ps3_free_io_irq(unsigned int virq)

/**

 * 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_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",

		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_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_alloc_vuart_irq - Configure the system virtual uart virq.

 * 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;

}

arch/powerpc/platforms/ps3/smp.c

+4 −2
Original line number Diff line number Diff line
@@ -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);

}

arch/powerpc/platforms/ps3/spu.c

+8 −8
Original line number Diff line number Diff line
@@ -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;

drivers/ps3/vuart.c

+4 −4
Original line number Diff line number Diff line
@@ -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;

	}

drivers/usb/host/ehci-ps3.c

+2 −2
Original line number Diff line number Diff line
@@ -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 @@ static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev) 
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: