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[Qemu-devel] [PATCH qom v4 13/13] sysbus: Use TYPE_DEVICE GPIO functiona
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH qom v4 13/13] sysbus: Use TYPE_DEVICE GPIO functionality |
Date: |
Fri, 17 Oct 2014 18:24:55 +0200 |
From: Peter Crosthwaite <address@hidden>
Re-implement the Sysbus GPIOs to use the existing TYPE_DEVICE
GPIO named framework. A constant string name is chosen to avoid
conflicts with existing unnamed GPIOs.
This unifies GPIOs are IRQs for sysbus devices and allows removal
of all Sysbus state for GPIOs.
Any existing and future-added functionality for GPIOs is now
also available for sysbus IRQs.
Reviewed-by: Alexander Graf <address@hidden>
Signed-off-by: Peter Crosthwaite <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
hw/core/sysbus.c | 20 +++-----------------
include/hw/sysbus.h | 7 +++----
2 files changed, 6 insertions(+), 21 deletions(-)
diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index 414e2a1..e55c3c1 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -41,11 +41,7 @@ static const TypeInfo system_bus_info = {
void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq)
{
- assert(n >= 0 && n < dev->num_irq);
- dev->irqs[n] = NULL;
- if (dev->irqp[n]) {
- *dev->irqp[n] = irq;
- }
+ qdev_connect_gpio_out_named(DEVICE(dev), SYSBUS_DEVICE_GPIO_IRQ, n, irq);
}
static void sysbus_mmio_map_common(SysBusDevice *dev, int n, hwaddr addr,
@@ -89,22 +85,13 @@ void sysbus_mmio_map_overlap(SysBusDevice *dev, int n,
hwaddr addr,
/* Request an IRQ source. The actual IRQ object may be populated later. */
void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p)
{
- int n;
-
- assert(dev->num_irq < QDEV_MAX_IRQ);
- n = dev->num_irq++;
- dev->irqp[n] = p;
+ qdev_init_gpio_out_named(DEVICE(dev), p, SYSBUS_DEVICE_GPIO_IRQ, 1);
}
/* Pass IRQs from a target device. */
void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target)
{
- int i;
- assert(dev->num_irq == 0);
- dev->num_irq = target->num_irq;
- for (i = 0; i < dev->num_irq; i++) {
- dev->irqp[i] = target->irqp[i];
- }
+ qdev_pass_gpios(DEVICE(target), DEVICE(dev), SYSBUS_DEVICE_GPIO_IRQ);
}
void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory)
@@ -210,7 +197,6 @@ static void sysbus_dev_print(Monitor *mon, DeviceState
*dev, int indent)
hwaddr size;
int i;
- monitor_printf(mon, "%*sirq %d\n", indent, "", s->num_irq);
for (i = 0; i < s->num_mmio; i++) {
size = memory_region_size(s->mmio[i].memory);
monitor_printf(mon, "%*smmio " TARGET_FMT_plx "/" TARGET_FMT_plx "\n",
diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h
index 0bb91a8..9fb1782 100644
--- a/include/hw/sysbus.h
+++ b/include/hw/sysbus.h
@@ -8,7 +8,6 @@
#define QDEV_MAX_MMIO 32
#define QDEV_MAX_PIO 32
-#define QDEV_MAX_IRQ 512
#define TYPE_SYSTEM_BUS "System"
#define SYSTEM_BUS(obj) OBJECT_CHECK(IDEBus, (obj), TYPE_IDE_BUS)
@@ -33,6 +32,9 @@ typedef struct SysBusDevice SysBusDevice;
* SysBusDeviceClass is not overriding #DeviceClass.realize, so derived
* classes overriding it are not required to invoke its implementation.
*/
+
+#define SYSBUS_DEVICE_GPIO_IRQ "sysbus-irq"
+
typedef struct SysBusDeviceClass {
/*< private >*/
DeviceClass parent_class;
@@ -46,9 +48,6 @@ struct SysBusDevice {
DeviceState parent_obj;
/*< public >*/
- int num_irq;
- qemu_irq irqs[QDEV_MAX_IRQ];
- qemu_irq *irqp[QDEV_MAX_IRQ];
int num_mmio;
struct {
hwaddr addr;
--
2.1.0
- [Qemu-devel] [PATCH qom v4 01/13] qdev: gpio: Don't allow name share between I and O, (continued)
- [Qemu-devel] [PATCH qom v4 01/13] qdev: gpio: Don't allow name share between I and O, Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 04/13] qom: Allow clearing of a Link property, Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 05/13] qom: Demote already-has-a-parent to a regular error, Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 06/13] qdev: gpio: Re-implement qdev_connect_gpio QOM style, Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 07/13] qdev: gpio: Add API for intercepting a GPIO, Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 08/13] qtest/irq: Rework IRQ interception, Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 09/13] irq: Remove qemu_irq_intercept_out, Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 10/13] qdev: gpio: delete NamedGPIOList::out, Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 11/13] qdev: gpio: Remove qdev_init_gpio_out x1 restriction, Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 12/13] qdev: gpio: Define qdev_pass_gpios(), Paolo Bonzini, 2014/10/17
- [Qemu-devel] [PATCH qom v4 13/13] sysbus: Use TYPE_DEVICE GPIO functionality,
Paolo Bonzini <=
- Re: [Qemu-devel] [PATCH qom v4 00/13] GPIO/IRQ QOMification: Phase 2 - Getting rid of SYSBUS IRQs, Peter Crosthwaite, 2014/10/19