| /* |
| * RealView ARM11MPCore internal peripheral emulation |
| * |
| * Copyright (c) 2006-2007 CodeSourcery. |
| * Copyright (c) 2013 SUSE LINUX Products GmbH |
| * Written by Paul Brook and Andreas Färber |
| * |
| * This code is licensed under the GPL. |
| */ |
| |
| #include "hw/cpu/arm11mpcore.h" |
| #include "hw/intc/realview_gic.h" |
| |
| #define TYPE_REALVIEW_MPCORE_RIRQ "realview_mpcore" |
| #define REALVIEW_MPCORE_RIRQ(obj) \ |
| OBJECT_CHECK(mpcore_rirq_state, (obj), TYPE_REALVIEW_MPCORE_RIRQ) |
| |
| /* Dummy PIC to route IRQ lines. The baseboard has 4 independent IRQ |
| controllers. The output of these, plus some of the raw input lines |
| are fed into a single SMP-aware interrupt controller on the CPU. */ |
| typedef struct { |
| SysBusDevice parent_obj; |
| |
| qemu_irq cpuic[32]; |
| qemu_irq rvic[4][64]; |
| uint32_t num_cpu; |
| |
| ARM11MPCorePriveState priv; |
| RealViewGICState gic[4]; |
| } mpcore_rirq_state; |
| |
| /* Map baseboard IRQs onto CPU IRQ lines. */ |
| static const int mpcore_irq_map[32] = { |
| -1, -1, -1, -1, 1, 2, -1, -1, |
| -1, -1, 6, -1, 4, 5, -1, -1, |
| -1, 14, 15, 0, 7, 8, -1, -1, |
| -1, -1, -1, -1, 9, 3, -1, -1, |
| }; |
| |
| static void mpcore_rirq_set_irq(void *opaque, int irq, int level) |
| { |
| mpcore_rirq_state *s = (mpcore_rirq_state *)opaque; |
| int i; |
| |
| for (i = 0; i < 4; i++) { |
| qemu_set_irq(s->rvic[i][irq], level); |
| } |
| if (irq < 32) { |
| irq = mpcore_irq_map[irq]; |
| if (irq >= 0) { |
| qemu_set_irq(s->cpuic[irq], level); |
| } |
| } |
| } |
| |
| static void realview_mpcore_realize(DeviceState *dev, Error **errp) |
| { |
| SysBusDevice *sbd = SYS_BUS_DEVICE(dev); |
| mpcore_rirq_state *s = REALVIEW_MPCORE_RIRQ(dev); |
| DeviceState *priv = DEVICE(&s->priv); |
| DeviceState *gic; |
| SysBusDevice *gicbusdev; |
| Error *err = NULL; |
| int n; |
| int i; |
| |
| qdev_prop_set_uint32(priv, "num-cpu", s->num_cpu); |
| object_property_set_bool(OBJECT(&s->priv), true, "realized", &err); |
| if (err != NULL) { |
| error_propagate(errp, err); |
| return; |
| } |
| sysbus_pass_irq(sbd, SYS_BUS_DEVICE(&s->priv)); |
| for (i = 0; i < 32; i++) { |
| s->cpuic[i] = qdev_get_gpio_in(priv, i); |
| } |
| /* ??? IRQ routing is hardcoded to "normal" mode. */ |
| for (n = 0; n < 4; n++) { |
| object_property_set_bool(OBJECT(&s->gic[n]), true, "realized", &err); |
| if (err != NULL) { |
| error_propagate(errp, err); |
| return; |
| } |
| gic = DEVICE(&s->gic[n]); |
| gicbusdev = SYS_BUS_DEVICE(&s->gic[n]); |
| sysbus_mmio_map(gicbusdev, 0, 0x10040000 + n * 0x10000); |
| sysbus_connect_irq(gicbusdev, 0, s->cpuic[10 + n]); |
| for (i = 0; i < 64; i++) { |
| s->rvic[n][i] = qdev_get_gpio_in(gic, i); |
| } |
| } |
| qdev_init_gpio_in(dev, mpcore_rirq_set_irq, 64); |
| } |
| |
| static void mpcore_rirq_init(Object *obj) |
| { |
| SysBusDevice *sbd = SYS_BUS_DEVICE(obj); |
| mpcore_rirq_state *s = REALVIEW_MPCORE_RIRQ(obj); |
| SysBusDevice *privbusdev; |
| int i; |
| |
| object_initialize(&s->priv, sizeof(s->priv), TYPE_ARM11MPCORE_PRIV); |
| qdev_set_parent_bus(DEVICE(&s->priv), sysbus_get_default()); |
| privbusdev = SYS_BUS_DEVICE(&s->priv); |
| sysbus_init_mmio(sbd, sysbus_mmio_get_region(privbusdev, 0)); |
| |
| for (i = 0; i < 4; i++) { |
| object_initialize(&s->gic[i], sizeof(s->gic[i]), TYPE_REALVIEW_GIC); |
| qdev_set_parent_bus(DEVICE(&s->gic[i]), sysbus_get_default()); |
| } |
| } |
| |
| static Property mpcore_rirq_properties[] = { |
| DEFINE_PROP_UINT32("num-cpu", mpcore_rirq_state, num_cpu, 1), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void mpcore_rirq_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| dc->realize = realview_mpcore_realize; |
| dc->props = mpcore_rirq_properties; |
| } |
| |
| static const TypeInfo mpcore_rirq_info = { |
| .name = TYPE_REALVIEW_MPCORE_RIRQ, |
| .parent = TYPE_SYS_BUS_DEVICE, |
| .instance_size = sizeof(mpcore_rirq_state), |
| .instance_init = mpcore_rirq_init, |
| .class_init = mpcore_rirq_class_init, |
| }; |
| |
| static void realview_mpcore_register_types(void) |
| { |
| type_register_static(&mpcore_rirq_info); |
| } |
| |
| type_init(realview_mpcore_register_types) |