hw/arm/xlnx-zynqmp.c

   1 /*
   2  * Xilinx Zynq MPSoC emulation
   3  *
   4  * Copyright (C) 2015 Xilinx Inc
   5  * Written by Peter Crosthwaite <peter.crosthwaite@xilinx.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  15  * for more details.
  16  */
  17
  18 #include "hw/arm/xlnx-zynqmp.h"
  19 #include "hw/intc/arm_gic_common.h"
  20 #include "exec/address-spaces.h"
  21
  22 #define GIC_NUM_SPI_INTR 160
  23
  24 #define ARM_PHYS_TIMER_PPI  30
  25 #define ARM_VIRT_TIMER_PPI  27
  26
  27 #define GIC_BASE_ADDR       0xf9000000
  28 #define GIC_DIST_ADDR       0xf9010000
  29 #define GIC_CPU_ADDR        0xf9020000
  30
  31 static const uint64_t gem_addr[XLNX_ZYNQMP_NUM_GEMS] = {
  32     0xFF0B0000, 0xFF0C0000, 0xFF0D0000, 0xFF0E0000,
  33 };
  34
  35 static const int gem_intr[XLNX_ZYNQMP_NUM_GEMS] = {
  36     57, 59, 61, 63,
  37 };
  38
  39 static const uint64_t uart_addr[XLNX_ZYNQMP_NUM_UARTS] = {
  40     0xFF000000, 0xFF010000,
  41 };
  42
  43 static const int uart_intr[XLNX_ZYNQMP_NUM_UARTS] = {
  44     21, 22,
  45 };
  46
  47 typedef struct XlnxZynqMPGICRegion {
  48     int region_index;
  49     uint32_t address;
  50 } XlnxZynqMPGICRegion;
  51
  52 static const XlnxZynqMPGICRegion xlnx_zynqmp_gic_regions[] = {
  53     { .region_index = 0, .address = GIC_DIST_ADDR, },
  54     { .region_index = 1, .address = GIC_CPU_ADDR,  },
  55 };
  56
  57 static inline int arm_gic_ppi_index(int cpu_nr, int ppi_index)
  58 {
  59     return GIC_NUM_SPI_INTR + cpu_nr * GIC_INTERNAL + ppi_index;
  60 }
  61
  62 static void xlnx_zynqmp_init(Object *obj)
  63 {
  64     XlnxZynqMPState *s = XLNX_ZYNQMP(obj);
  65     int i;
  66
  67     for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
  68         object_initialize(&s->apu_cpu[i], sizeof(s->apu_cpu[i]),
  69                           "cortex-a53-" TYPE_ARM_CPU);
  70         object_property_add_child(obj, "apu-cpu[*]", OBJECT(&s->apu_cpu[i]),
  71                                   &error_abort);
  72     }
  73
  74     for (i = 0; i < XLNX_ZYNQMP_NUM_RPU_CPUS; i++) {
  75         object_initialize(&s->rpu_cpu[i], sizeof(s->rpu_cpu[i]),
  76                           "cortex-r5-" TYPE_ARM_CPU);
  77         object_property_add_child(obj, "rpu-cpu[*]", OBJECT(&s->rpu_cpu[i]),
  78                                   &error_abort);
  79     }
  80
  81     object_initialize(&s->gic, sizeof(s->gic), TYPE_ARM_GIC);
  82     qdev_set_parent_bus(DEVICE(&s->gic), sysbus_get_default());
  83
  84     for (i = 0; i < XLNX_ZYNQMP_NUM_GEMS; i++) {
  85         object_initialize(&s->gem[i], sizeof(s->gem[i]), TYPE_CADENCE_GEM);
  86         qdev_set_parent_bus(DEVICE(&s->gem[i]), sysbus_get_default());
  87     }
  88
  89     for (i = 0; i < XLNX_ZYNQMP_NUM_UARTS; i++) {
  90         object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_CADENCE_UART);
  91         qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default());
  92     }
  93 }
  94
  95 static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
  96 {
  97     XlnxZynqMPState *s = XLNX_ZYNQMP(dev);
  98     MemoryRegion *system_memory = get_system_memory();
  99     uint8_t i;
 100     const char *boot_cpu = s->boot_cpu ? s->boot_cpu : "apu-cpu[0]";
 101     qemu_irq gic_spi[GIC_NUM_SPI_INTR];
 102     Error *err = NULL;
 103
 104     qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", GIC_NUM_SPI_INTR + 32);
 105     qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2);
 106     qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", XLNX_ZYNQMP_NUM_APU_CPUS);
 107     object_property_set_bool(OBJECT(&s->gic), true, "realized", &err);
 108     if (err) {
 109         error_propagate((errp), (err));
 110         return;
 111     }
 112     assert(ARRAY_SIZE(xlnx_zynqmp_gic_regions) == XLNX_ZYNQMP_GIC_REGIONS);
 113     for (i = 0; i < XLNX_ZYNQMP_GIC_REGIONS; i++) {
 114         SysBusDevice *gic = SYS_BUS_DEVICE(&s->gic);
 115         const XlnxZynqMPGICRegion *r = &xlnx_zynqmp_gic_regions[i];
 116         MemoryRegion *mr = sysbus_mmio_get_region(gic, r->region_index);
 117         uint32_t addr = r->address;
 118         int j;
 119
 120         sysbus_mmio_map(gic, r->region_index, addr);
 121
 122         for (j = 0; j < XLNX_ZYNQMP_GIC_ALIASES; j++) {
 123             MemoryRegion *alias = &s->gic_mr[i][j];
 124
 125             addr += XLNX_ZYNQMP_GIC_REGION_SIZE;
 126             memory_region_init_alias(alias, OBJECT(s), "zynqmp-gic-alias", mr,
 127                                      0, XLNX_ZYNQMP_GIC_REGION_SIZE);
 128             memory_region_add_subregion(system_memory, addr, alias);
 129         }
 130     }
 131
 132     for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
 133         qemu_irq irq;
 134         char *name;
 135
 136         object_property_set_int(OBJECT(&s->apu_cpu[i]), QEMU_PSCI_CONDUIT_SMC,
 137                                 "psci-conduit", &error_abort);
 138
 139         name = object_get_canonical_path_component(OBJECT(&s->apu_cpu[i]));
 140         if (strcmp(name, boot_cpu)) {
 141             /* Secondary CPUs start in PSCI powered-down state */
 142             object_property_set_bool(OBJECT(&s->apu_cpu[i]), true,
 143                                      "start-powered-off", &error_abort);
 144         } else {
 145             s->boot_cpu_ptr = &s->apu_cpu[i];
 146         }
 147         g_free(name);
 148
 149         object_property_set_int(OBJECT(&s->apu_cpu[i]), GIC_BASE_ADDR,
 150                                 "reset-cbar", &err);
 151         if (err) {
 152             error_propagate((errp), (err));
 153             return;
 154         }
 155
 156         object_property_set_bool(OBJECT(&s->apu_cpu[i]), true, "realized",
 157                                  &err);
 158         if (err) {
 159             error_propagate((errp), (err));
 160             return;
 161         }
 162
 163         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i,
 164                            qdev_get_gpio_in(DEVICE(&s->apu_cpu[i]),
 165                                             ARM_CPU_IRQ));
 166         irq = qdev_get_gpio_in(DEVICE(&s->gic),
 167                                arm_gic_ppi_index(i, ARM_PHYS_TIMER_PPI));
 168         qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), 0, irq);
 169         irq = qdev_get_gpio_in(DEVICE(&s->gic),
 170                                arm_gic_ppi_index(i, ARM_VIRT_TIMER_PPI));
 171         qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), 1, irq);
 172     }
 173
 174     for (i = 0; i < XLNX_ZYNQMP_NUM_RPU_CPUS; i++) {
 175         char *name;
 176
 177         name = object_get_canonical_path_component(OBJECT(&s->rpu_cpu[i]));
 178         if (strcmp(name, boot_cpu)) {
 179             /* Secondary CPUs start in PSCI powered-down state */
 180             object_property_set_bool(OBJECT(&s->rpu_cpu[i]), true,
 181                                      "start-powered-off", &error_abort);
 182         } else {
 183             s->boot_cpu_ptr = &s->rpu_cpu[i];
 184         }
 185         g_free(name);
 186
 187         object_property_set_bool(OBJECT(&s->rpu_cpu[i]), true, "reset-hivecs",
 188                                  &err);
 189         if (err != NULL) {
 190             error_propagate(errp, err);
 191             return;
 192         }
 193
 194         object_property_set_bool(OBJECT(&s->rpu_cpu[i]), true, "realized",
 195                                  &err);
 196         if (err) {
 197             error_propagate((errp), (err));
 198             return;
 199         }
 200     }
 201
 202     if (!s->boot_cpu_ptr) {
 203         error_setg(errp, "ZynqMP Boot cpu %s not found\n", boot_cpu);
 204         return;
 205     }
 206
 207     for (i = 0; i < GIC_NUM_SPI_INTR; i++) {
 208         gic_spi[i] = qdev_get_gpio_in(DEVICE(&s->gic), i);
 209     }
 210
 211     for (i = 0; i < XLNX_ZYNQMP_NUM_GEMS; i++) {
 212         NICInfo *nd = &nd_table[i];
 213
 214         if (nd->used) {
 215             qemu_check_nic_model(nd, TYPE_CADENCE_GEM);
 216             qdev_set_nic_properties(DEVICE(&s->gem[i]), nd);
 217         }
 218         object_property_set_bool(OBJECT(&s->gem[i]), true, "realized", &err);
 219         if (err) {
 220             error_propagate((errp), (err));
 221             return;
 222         }
 223         sysbus_mmio_map(SYS_BUS_DEVICE(&s->gem[i]), 0, gem_addr[i]);
 224         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gem[i]), 0,
 225                            gic_spi[gem_intr[i]]);
 226     }
 227
 228     for (i = 0; i < XLNX_ZYNQMP_NUM_UARTS; i++) {
 229         object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err);
 230         if (err) {
 231             error_propagate((errp), (err));
 232             return;
 233         }
 234         sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, uart_addr[i]);
 235         sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0,
 236                            gic_spi[uart_intr[i]]);
 237     }
 238 }
 239
 240 static Property xlnx_zynqmp_props[] = {
 241     DEFINE_PROP_STRING("boot-cpu", XlnxZynqMPState, boot_cpu),
 242     DEFINE_PROP_END_OF_LIST()
 243 };
 244
 245 static void xlnx_zynqmp_class_init(ObjectClass *oc, void *data)
 246 {
 247     DeviceClass *dc = DEVICE_CLASS(oc);
 248
 249     dc->props = xlnx_zynqmp_props;
 250     dc->realize = xlnx_zynqmp_realize;
 251
 252     /*
 253      * Reason: creates an ARM CPU, thus use after free(), see
 254      * arm_cpu_class_init()
 255      */
 256     dc->cannot_destroy_with_object_finalize_yet = true;
 257 }
 258
 259 static const TypeInfo xlnx_zynqmp_type_info = {
 260     .name = TYPE_XLNX_ZYNQMP,
 261     .parent = TYPE_DEVICE,
 262     .instance_size = sizeof(XlnxZynqMPState),
 263     .instance_init = xlnx_zynqmp_init,
 264     .class_init = xlnx_zynqmp_class_init,
 265 };
 266
 267 static void xlnx_zynqmp_register_types(void)
 268 {
 269     type_register_static(&xlnx_zynqmp_type_info);
 270 }
 271
 272 type_init(xlnx_zynqmp_register_types)