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hw/a15mpcore: switch to using sysbus GIC

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Switch the a15mpcore private peripheral region to using
the standalone sysbus GIC device.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2012-04-13 11:39:07 +00:00
parent 496dbcd1a3
commit 4637a02752
1 changed files with 26 additions and 9 deletions
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35
hw/a15mpcore.c
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@ -20,23 +20,38 @@
#include "sysbus.h"
#define LEGACY_INCLUDED_GIC
#include "arm_gic.c"
/* A15MP private memory region. */
typedef struct A15MPPrivState {
gic_state gic;
SysBusDevice busdev;
uint32_t num_cpu;
uint32_t num_irq;
MemoryRegion container;
DeviceState *gic;
} A15MPPrivState;
static void a15mp_priv_set_irq(void *opaque, int irq, int level)
{
A15MPPrivState *s = (A15MPPrivState *)opaque;
qemu_set_irq(qdev_get_gpio_in(s->gic, irq), level);
}
static int a15mp_priv_init(SysBusDevice *dev)
{
A15MPPrivState *s = FROM_SYSBUSGIC(A15MPPrivState, dev);
A15MPPrivState *s = FROM_SYSBUS(A15MPPrivState, dev);
SysBusDevice *busdev;
gic_init(&s->gic, s->num_cpu, s->num_irq);
s->gic = qdev_create(NULL, "arm_gic");
qdev_prop_set_uint32(s->gic, "num-cpu", s->num_cpu);
qdev_prop_set_uint32(s->gic, "num-irq", s->num_irq);
qdev_init_nofail(s->gic);
busdev = sysbus_from_qdev(s->gic);
/* Pass through outbound IRQ lines from the GIC */
sysbus_pass_irq(dev, busdev);
/* Pass through inbound GPIO lines to the GIC */
qdev_init_gpio_in(&s->busdev.qdev, a15mp_priv_set_irq, s->num_irq - 32);
/* Memory map (addresses are offsets from PERIPHBASE):
* 0x0000-0x0fff -- reserved
@ -47,8 +62,10 @@ static int a15mp_priv_init(SysBusDevice *dev)
* 0x6000-0x7fff -- GIC virtual CPU interface (not modelled)
*/
memory_region_init(&s->container, "a15mp-priv-container", 0x8000);
memory_region_add_subregion(&s->container, 0x1000, &s->gic.iomem);
memory_region_add_subregion(&s->container, 0x2000, &s->gic.cpuiomem[0]);
memory_region_add_subregion(&s->container, 0x1000,
sysbus_mmio_get_region(busdev, 0));
memory_region_add_subregion(&s->container, 0x2000,
sysbus_mmio_get_region(busdev, 1));
sysbus_init_mmio(dev, &s->container);
return 0;
@ -72,7 +89,7 @@ static void a15mp_priv_class_init(ObjectClass *klass, void *data)
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = a15mp_priv_init;
dc->props = a15mp_priv_properties;
/* We currently have no savable state outside the common GIC state */
/* We currently have no savable state */
}
static TypeInfo a15mp_priv_info = {