#include "sysbus.h"
#include "qemu-timer.h"
-/* ??? The MPCore TRM says the on-chip controller has 224 external IRQ lines
- (+ 32 internal). However my test chip only exposes/reports 32.
- More importantly Linux falls over if more than 32 are present! */
-#define GIC_NIRQ 64
-
-#define NCPU 4
-
-static inline int
-gic_get_current_cpu(void)
-{
- return cpu_single_env->cpu_index;
-}
-
-#include "arm_gic.c"
-
/* MPCore private memory region. */
typedef struct mpcore_priv_state {
- gic_state gic;
+ SysBusDevice busdev;
uint32_t scu_control;
int iomemtype;
uint32_t old_timer_status[8];
uint32_t num_cpu;
- qemu_irq *timer_irq;
MemoryRegion iomem;
MemoryRegion container;
DeviceState *mptimer;
+ DeviceState *gic;
+ uint32_t num_irq;
} mpcore_priv_state;
/* Per-CPU private memory mapped IO. */
-static uint64_t mpcore_scu_read(void *opaque, target_phys_addr_t offset,
+static uint64_t mpcore_scu_read(void *opaque, hwaddr offset,
unsigned size)
{
mpcore_priv_state *s = (mpcore_priv_state *)opaque;
int id;
- offset &= 0xff;
/* SCU */
switch (offset) {
case 0x00: /* Control. */
}
}
-static void mpcore_scu_write(void *opaque, target_phys_addr_t offset,
+static void mpcore_scu_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
mpcore_priv_state *s = (mpcore_priv_state *)opaque;
- offset &= 0xff;
/* SCU */
switch (offset) {
case 0: /* Control register. */
.endianness = DEVICE_NATIVE_ENDIAN,
};
-static void mpcore_timer_irq_handler(void *opaque, int irq, int level)
+static void mpcore_priv_set_irq(void *opaque, int irq, int level)
{
mpcore_priv_state *s = (mpcore_priv_state *)opaque;
- if (level && !s->old_timer_status[irq]) {
- gic_set_pending_private(&s->gic, irq >> 1, 29 + (irq & 1));
- }
- s->old_timer_status[irq] = level;
+ qemu_set_irq(qdev_get_gpio_in(s->gic, irq), level);
}
static void mpcore_priv_map_setup(mpcore_priv_state *s)
{
int i;
+ SysBusDevice *gicbusdev = sysbus_from_qdev(s->gic);
SysBusDevice *busdev = sysbus_from_qdev(s->mptimer);
memory_region_init(&s->container, "mpcode-priv-container", 0x2000);
memory_region_init_io(&s->iomem, &mpcore_scu_ops, s, "mpcore-scu", 0x100);
* at 0x200, 0x300...
*/
for (i = 0; i < (s->num_cpu + 1); i++) {
- target_phys_addr_t offset = 0x100 + (i * 0x100);
- memory_region_add_subregion(&s->container, offset, &s->gic.cpuiomem[i]);
+ hwaddr offset = 0x100 + (i * 0x100);
+ memory_region_add_subregion(&s->container, offset,
+ sysbus_mmio_get_region(gicbusdev, i + 1));
}
/* Add the regions for timer and watchdog for "current CPU" and
* for each specific CPU.
*/
- s->timer_irq = qemu_allocate_irqs(mpcore_timer_irq_handler,
- s, (s->num_cpu + 1) * 2);
for (i = 0; i < (s->num_cpu + 1) * 2; i++) {
/* Timers at 0x600, 0x700, ...; watchdogs at 0x620, 0x720, ... */
- target_phys_addr_t offset = 0x600 + (i >> 1) * 0x100 + (i & 1) * 0x20;
+ hwaddr offset = 0x600 + (i >> 1) * 0x100 + (i & 1) * 0x20;
memory_region_add_subregion(&s->container, offset,
sysbus_mmio_get_region(busdev, i));
}
- memory_region_add_subregion(&s->container, 0x1000, &s->gic.iomem);
- /* Wire up the interrupt from each watchdog and timer. */
- for (i = 0; i < s->num_cpu * 2; i++) {
- sysbus_connect_irq(busdev, i, s->timer_irq[i]);
+ memory_region_add_subregion(&s->container, 0x1000,
+ sysbus_mmio_get_region(gicbusdev, 0));
+ /* Wire up the interrupt from each watchdog and timer.
+ * For each core the timer is PPI 29 and the watchdog PPI 30.
+ */
+ for (i = 0; i < s->num_cpu; i++) {
+ int ppibase = (s->num_irq - 32) + i * 32;
+ sysbus_connect_irq(busdev, i * 2,
+ qdev_get_gpio_in(s->gic, ppibase + 29));
+ sysbus_connect_irq(busdev, i * 2 + 1,
+ qdev_get_gpio_in(s->gic, ppibase + 30));
}
}
static int mpcore_priv_init(SysBusDevice *dev)
{
- mpcore_priv_state *s = FROM_SYSBUSGIC(mpcore_priv_state, dev);
+ mpcore_priv_state *s = FROM_SYSBUS(mpcore_priv_state, dev);
+
+ 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);
+ /* Request the legacy 11MPCore GIC behaviour: */
+ qdev_prop_set_uint32(s->gic, "revision", 0);
+ qdev_init_nofail(s->gic);
+
+ /* Pass through outbound IRQ lines from the GIC */
+ sysbus_pass_irq(dev, sysbus_from_qdev(s->gic));
+
+ /* Pass through inbound GPIO lines to the GIC */
+ qdev_init_gpio_in(&s->busdev.qdev, mpcore_priv_set_irq, s->num_irq - 32);
- gic_init(&s->gic, s->num_cpu);
s->mptimer = qdev_create(NULL, "arm_mptimer");
qdev_prop_set_uint32(s->mptimer, "num-cpu", s->num_cpu);
qdev_init_nofail(s->mptimer);
return 0;
}
-static SysBusDeviceInfo mpcore_rirq_info = {
- .init = realview_mpcore_init,
- .qdev.name = "realview_mpcore",
- .qdev.size = sizeof(mpcore_rirq_state),
- .qdev.props = (Property[]) {
- DEFINE_PROP_UINT32("num-cpu", mpcore_rirq_state, num_cpu, 1),
- DEFINE_PROP_END_OF_LIST(),
- }
+static Property mpcore_rirq_properties[] = {
+ DEFINE_PROP_UINT32("num-cpu", mpcore_rirq_state, num_cpu, 1),
+ DEFINE_PROP_END_OF_LIST(),
};
-static SysBusDeviceInfo mpcore_priv_info = {
- .init = mpcore_priv_init,
- .qdev.name = "arm11mpcore_priv",
- .qdev.size = sizeof(mpcore_priv_state),
- .qdev.props = (Property[]) {
- DEFINE_PROP_UINT32("num-cpu", mpcore_priv_state, num_cpu, 1),
- DEFINE_PROP_END_OF_LIST(),
- }
+static void mpcore_rirq_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = realview_mpcore_init;
+ dc->props = mpcore_rirq_properties;
+}
+
+static TypeInfo mpcore_rirq_info = {
+ .name = "realview_mpcore",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(mpcore_rirq_state),
+ .class_init = mpcore_rirq_class_init,
+};
+
+static Property mpcore_priv_properties[] = {
+ DEFINE_PROP_UINT32("num-cpu", mpcore_priv_state, num_cpu, 1),
+ /* The ARM11 MPCORE TRM says the on-chip controller may have
+ * anything from 0 to 224 external interrupt IRQ lines (with another
+ * 32 internal). We default to 32+32, which is the number provided by
+ * the ARM11 MPCore test chip in the Realview Versatile Express
+ * coretile. Other boards may differ and should set this property
+ * appropriately. Some Linux kernels may not boot if the hardware
+ * has more IRQ lines than the kernel expects.
+ */
+ DEFINE_PROP_UINT32("num-irq", mpcore_priv_state, num_irq, 64),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void mpcore_priv_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = mpcore_priv_init;
+ dc->props = mpcore_priv_properties;
+}
+
+static TypeInfo mpcore_priv_info = {
+ .name = "arm11mpcore_priv",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(mpcore_priv_state),
+ .class_init = mpcore_priv_class_init,
};
-static void arm11mpcore_register_devices(void)
+static void arm11mpcore_register_types(void)
{
- sysbus_register_withprop(&mpcore_rirq_info);
- sysbus_register_withprop(&mpcore_priv_info);
+ type_register_static(&mpcore_rirq_info);
+ type_register_static(&mpcore_priv_info);
}
-device_init(arm11mpcore_register_devices)
+type_init(arm11mpcore_register_types)
projects / qemu.git / blobdiff