Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 1 | /* |
| 2 | * RealView ARM11MPCore internal peripheral emulation |
| 3 | * |
| 4 | * Copyright (c) 2006-2007 CodeSourcery. |
| 5 | * Copyright (c) 2013 SUSE LINUX Products GmbH |
| 6 | * Written by Paul Brook and Andreas Färber |
| 7 | * |
| 8 | * This code is licensed under the GPL. |
| 9 | */ |
| 10 | |
Peter Maydell | 17b7f2d | 2016-01-26 18:17:28 +0000 | [diff] [blame] | 11 | #include "qemu/osdep.h" |
Markus Armbruster | da34e65 | 2016-03-14 09:01:28 +0100 | [diff] [blame] | 12 | #include "qapi/error.h" |
Markus Armbruster | 0b8fa32 | 2019-05-23 16:35:07 +0200 | [diff] [blame] | 13 | #include "qemu/module.h" |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 14 | #include "hw/cpu/arm11mpcore.h" |
| 15 | #include "hw/intc/realview_gic.h" |
Markus Armbruster | 64552b6 | 2019-08-12 07:23:42 +0200 | [diff] [blame] | 16 | #include "hw/irq.h" |
Markus Armbruster | a27bd6c | 2019-08-12 07:23:51 +0200 | [diff] [blame] | 17 | #include "hw/qdev-properties.h" |
Eduardo Habkost | db1015e | 2020-09-03 16:43:22 -0400 | [diff] [blame] | 18 | #include "qom/object.h" |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 19 | |
| 20 | #define TYPE_REALVIEW_MPCORE_RIRQ "realview_mpcore" |
Eduardo Habkost | 8063396 | 2020-09-16 14:25:19 -0400 | [diff] [blame] | 21 | OBJECT_DECLARE_SIMPLE_TYPE(mpcore_rirq_state, REALVIEW_MPCORE_RIRQ) |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 22 | |
| 23 | /* Dummy PIC to route IRQ lines. The baseboard has 4 independent IRQ |
| 24 | controllers. The output of these, plus some of the raw input lines |
| 25 | are fed into a single SMP-aware interrupt controller on the CPU. */ |
Eduardo Habkost | db1015e | 2020-09-03 16:43:22 -0400 | [diff] [blame] | 26 | struct mpcore_rirq_state { |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 27 | SysBusDevice parent_obj; |
| 28 | |
| 29 | qemu_irq cpuic[32]; |
| 30 | qemu_irq rvic[4][64]; |
| 31 | uint32_t num_cpu; |
| 32 | |
| 33 | ARM11MPCorePriveState priv; |
| 34 | RealViewGICState gic[4]; |
Eduardo Habkost | db1015e | 2020-09-03 16:43:22 -0400 | [diff] [blame] | 35 | }; |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 36 | |
| 37 | /* Map baseboard IRQs onto CPU IRQ lines. */ |
| 38 | static const int mpcore_irq_map[32] = { |
| 39 | -1, -1, -1, -1, 1, 2, -1, -1, |
| 40 | -1, -1, 6, -1, 4, 5, -1, -1, |
| 41 | -1, 14, 15, 0, 7, 8, -1, -1, |
| 42 | -1, -1, -1, -1, 9, 3, -1, -1, |
| 43 | }; |
| 44 | |
| 45 | static void mpcore_rirq_set_irq(void *opaque, int irq, int level) |
| 46 | { |
| 47 | mpcore_rirq_state *s = (mpcore_rirq_state *)opaque; |
| 48 | int i; |
| 49 | |
| 50 | for (i = 0; i < 4; i++) { |
| 51 | qemu_set_irq(s->rvic[i][irq], level); |
| 52 | } |
| 53 | if (irq < 32) { |
| 54 | irq = mpcore_irq_map[irq]; |
| 55 | if (irq >= 0) { |
| 56 | qemu_set_irq(s->cpuic[irq], level); |
| 57 | } |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | static void realview_mpcore_realize(DeviceState *dev, Error **errp) |
| 62 | { |
| 63 | SysBusDevice *sbd = SYS_BUS_DEVICE(dev); |
| 64 | mpcore_rirq_state *s = REALVIEW_MPCORE_RIRQ(dev); |
| 65 | DeviceState *priv = DEVICE(&s->priv); |
| 66 | DeviceState *gic; |
| 67 | SysBusDevice *gicbusdev; |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 68 | int n; |
| 69 | int i; |
| 70 | |
| 71 | qdev_prop_set_uint32(priv, "num-cpu", s->num_cpu); |
Markus Armbruster | 668f62e | 2020-07-07 18:06:02 +0200 | [diff] [blame] | 72 | if (!sysbus_realize(SYS_BUS_DEVICE(&s->priv), errp)) { |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 73 | return; |
| 74 | } |
| 75 | sysbus_pass_irq(sbd, SYS_BUS_DEVICE(&s->priv)); |
| 76 | for (i = 0; i < 32; i++) { |
| 77 | s->cpuic[i] = qdev_get_gpio_in(priv, i); |
| 78 | } |
| 79 | /* ??? IRQ routing is hardcoded to "normal" mode. */ |
| 80 | for (n = 0; n < 4; n++) { |
Markus Armbruster | 668f62e | 2020-07-07 18:06:02 +0200 | [diff] [blame] | 81 | if (!sysbus_realize(SYS_BUS_DEVICE(&s->gic[n]), errp)) { |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 82 | return; |
| 83 | } |
| 84 | gic = DEVICE(&s->gic[n]); |
| 85 | gicbusdev = SYS_BUS_DEVICE(&s->gic[n]); |
| 86 | sysbus_mmio_map(gicbusdev, 0, 0x10040000 + n * 0x10000); |
| 87 | sysbus_connect_irq(gicbusdev, 0, s->cpuic[10 + n]); |
| 88 | for (i = 0; i < 64; i++) { |
| 89 | s->rvic[n][i] = qdev_get_gpio_in(gic, i); |
| 90 | } |
| 91 | } |
| 92 | qdev_init_gpio_in(dev, mpcore_rirq_set_irq, 64); |
| 93 | } |
| 94 | |
| 95 | static void mpcore_rirq_init(Object *obj) |
| 96 | { |
| 97 | SysBusDevice *sbd = SYS_BUS_DEVICE(obj); |
| 98 | mpcore_rirq_state *s = REALVIEW_MPCORE_RIRQ(obj); |
| 99 | SysBusDevice *privbusdev; |
| 100 | int i; |
| 101 | |
Markus Armbruster | db873cc | 2020-06-10 07:32:37 +0200 | [diff] [blame] | 102 | object_initialize_child(obj, "a11priv", &s->priv, TYPE_ARM11MPCORE_PRIV); |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 103 | privbusdev = SYS_BUS_DEVICE(&s->priv); |
| 104 | sysbus_init_mmio(sbd, sysbus_mmio_get_region(privbusdev, 0)); |
| 105 | |
| 106 | for (i = 0; i < 4; i++) { |
Markus Armbruster | 5a147c8 | 2020-06-10 07:32:38 +0200 | [diff] [blame] | 107 | object_initialize_child(obj, "gic[*]", &s->gic[i], TYPE_REALVIEW_GIC); |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 108 | } |
| 109 | } |
| 110 | |
| 111 | static Property mpcore_rirq_properties[] = { |
| 112 | DEFINE_PROP_UINT32("num-cpu", mpcore_rirq_state, num_cpu, 1), |
| 113 | DEFINE_PROP_END_OF_LIST(), |
| 114 | }; |
| 115 | |
| 116 | static void mpcore_rirq_class_init(ObjectClass *klass, void *data) |
| 117 | { |
| 118 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 119 | |
| 120 | dc->realize = realview_mpcore_realize; |
Marc-André Lureau | 4f67d30 | 2020-01-10 19:30:32 +0400 | [diff] [blame] | 121 | device_class_set_props(dc, mpcore_rirq_properties); |
Andreas Färber | 9c219b7 | 2013-08-19 01:33:59 +0200 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | static const TypeInfo mpcore_rirq_info = { |
| 125 | .name = TYPE_REALVIEW_MPCORE_RIRQ, |
| 126 | .parent = TYPE_SYS_BUS_DEVICE, |
| 127 | .instance_size = sizeof(mpcore_rirq_state), |
| 128 | .instance_init = mpcore_rirq_init, |
| 129 | .class_init = mpcore_rirq_class_init, |
| 130 | }; |
| 131 | |
| 132 | static void realview_mpcore_register_types(void) |
| 133 | { |
| 134 | type_register_static(&mpcore_rirq_info); |
| 135 | } |
| 136 | |
| 137 | type_init(realview_mpcore_register_types) |