qemu/hw/arm/xlnx-zynqmp.c
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   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 "qemu/osdep.h"
  19#include "qapi/error.h"
  20#include "qemu-common.h"
  21#include "cpu.h"
  22#include "hw/arm/xlnx-zynqmp.h"
  23#include "hw/intc/arm_gic_common.h"
  24#include "exec/address-spaces.h"
  25#include "sysemu/kvm.h"
  26#include "kvm_arm.h"
  27
  28#define GIC_NUM_SPI_INTR 160
  29
  30#define ARM_PHYS_TIMER_PPI  30
  31#define ARM_VIRT_TIMER_PPI  27
  32
  33#define GIC_BASE_ADDR       0xf9000000
  34#define GIC_DIST_ADDR       0xf9010000
  35#define GIC_CPU_ADDR        0xf9020000
  36
  37#define SATA_INTR           133
  38#define SATA_ADDR           0xFD0C0000
  39#define SATA_NUM_PORTS      2
  40
  41#define DP_ADDR             0xfd4a0000
  42#define DP_IRQ              113
  43
  44#define DPDMA_ADDR          0xfd4c0000
  45#define DPDMA_IRQ           116
  46
  47static const uint64_t gem_addr[XLNX_ZYNQMP_NUM_GEMS] = {
  48    0xFF0B0000, 0xFF0C0000, 0xFF0D0000, 0xFF0E0000,
  49};
  50
  51static const int gem_intr[XLNX_ZYNQMP_NUM_GEMS] = {
  52    57, 59, 61, 63,
  53};
  54
  55static const uint64_t uart_addr[XLNX_ZYNQMP_NUM_UARTS] = {
  56    0xFF000000, 0xFF010000,
  57};
  58
  59static const int uart_intr[XLNX_ZYNQMP_NUM_UARTS] = {
  60    21, 22,
  61};
  62
  63static const uint64_t sdhci_addr[XLNX_ZYNQMP_NUM_SDHCI] = {
  64    0xFF160000, 0xFF170000,
  65};
  66
  67static const int sdhci_intr[XLNX_ZYNQMP_NUM_SDHCI] = {
  68    48, 49,
  69};
  70
  71static const uint64_t spi_addr[XLNX_ZYNQMP_NUM_SPIS] = {
  72    0xFF040000, 0xFF050000,
  73};
  74
  75static const int spi_intr[XLNX_ZYNQMP_NUM_SPIS] = {
  76    19, 20,
  77};
  78
  79typedef struct XlnxZynqMPGICRegion {
  80    int region_index;
  81    uint32_t address;
  82} XlnxZynqMPGICRegion;
  83
  84static const XlnxZynqMPGICRegion xlnx_zynqmp_gic_regions[] = {
  85    { .region_index = 0, .address = GIC_DIST_ADDR, },
  86    { .region_index = 1, .address = GIC_CPU_ADDR,  },
  87};
  88
  89static inline int arm_gic_ppi_index(int cpu_nr, int ppi_index)
  90{
  91    return GIC_NUM_SPI_INTR + cpu_nr * GIC_INTERNAL + ppi_index;
  92}
  93
  94static void xlnx_zynqmp_create_rpu(XlnxZynqMPState *s, const char *boot_cpu,
  95                                   Error **errp)
  96{
  97    Error *err = NULL;
  98    int i;
  99
 100    for (i = 0; i < XLNX_ZYNQMP_NUM_RPU_CPUS; i++) {
 101        char *name;
 102
 103        object_initialize(&s->rpu_cpu[i], sizeof(s->rpu_cpu[i]),
 104                          "cortex-r5-" TYPE_ARM_CPU);
 105        object_property_add_child(OBJECT(s), "rpu-cpu[*]",
 106                                  OBJECT(&s->rpu_cpu[i]), &error_abort);
 107
 108        name = object_get_canonical_path_component(OBJECT(&s->rpu_cpu[i]));
 109        if (strcmp(name, boot_cpu)) {
 110            /* Secondary CPUs start in PSCI powered-down state */
 111            object_property_set_bool(OBJECT(&s->rpu_cpu[i]), true,
 112                                     "start-powered-off", &error_abort);
 113        } else {
 114            s->boot_cpu_ptr = &s->rpu_cpu[i];
 115        }
 116        g_free(name);
 117
 118        object_property_set_bool(OBJECT(&s->rpu_cpu[i]), true, "reset-hivecs",
 119                                 &error_abort);
 120        object_property_set_bool(OBJECT(&s->rpu_cpu[i]), true, "realized",
 121                                 &err);
 122        if (err) {
 123            error_propagate(errp, err);
 124            return;
 125        }
 126    }
 127}
 128
 129static void xlnx_zynqmp_init(Object *obj)
 130{
 131    XlnxZynqMPState *s = XLNX_ZYNQMP(obj);
 132    int i;
 133
 134    for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
 135        object_initialize(&s->apu_cpu[i], sizeof(s->apu_cpu[i]),
 136                          "cortex-a53-" TYPE_ARM_CPU);
 137        object_property_add_child(obj, "apu-cpu[*]", OBJECT(&s->apu_cpu[i]),
 138                                  &error_abort);
 139    }
 140
 141    object_property_add_link(obj, "ddr-ram", TYPE_MEMORY_REGION,
 142                             (Object **)&s->ddr_ram,
 143                             qdev_prop_allow_set_link_before_realize,
 144                             OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort);
 145
 146    object_initialize(&s->gic, sizeof(s->gic), gic_class_name());
 147    qdev_set_parent_bus(DEVICE(&s->gic), sysbus_get_default());
 148
 149    for (i = 0; i < XLNX_ZYNQMP_NUM_GEMS; i++) {
 150        object_initialize(&s->gem[i], sizeof(s->gem[i]), TYPE_CADENCE_GEM);
 151        qdev_set_parent_bus(DEVICE(&s->gem[i]), sysbus_get_default());
 152    }
 153
 154    for (i = 0; i < XLNX_ZYNQMP_NUM_UARTS; i++) {
 155        object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_CADENCE_UART);
 156        qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default());
 157    }
 158
 159    object_initialize(&s->sata, sizeof(s->sata), TYPE_SYSBUS_AHCI);
 160    qdev_set_parent_bus(DEVICE(&s->sata), sysbus_get_default());
 161
 162    for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
 163        object_initialize(&s->sdhci[i], sizeof(s->sdhci[i]),
 164                          TYPE_SYSBUS_SDHCI);
 165        qdev_set_parent_bus(DEVICE(&s->sdhci[i]),
 166                            sysbus_get_default());
 167    }
 168
 169    for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
 170        object_initialize(&s->spi[i], sizeof(s->spi[i]),
 171                          TYPE_XILINX_SPIPS);
 172        qdev_set_parent_bus(DEVICE(&s->spi[i]), sysbus_get_default());
 173    }
 174
 175    object_initialize(&s->dp, sizeof(s->dp), TYPE_XLNX_DP);
 176    qdev_set_parent_bus(DEVICE(&s->dp), sysbus_get_default());
 177
 178    object_initialize(&s->dpdma, sizeof(s->dpdma), TYPE_XLNX_DPDMA);
 179    qdev_set_parent_bus(DEVICE(&s->dpdma), sysbus_get_default());
 180}
 181
 182static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
 183{
 184    XlnxZynqMPState *s = XLNX_ZYNQMP(dev);
 185    MemoryRegion *system_memory = get_system_memory();
 186    uint8_t i;
 187    uint64_t ram_size;
 188    const char *boot_cpu = s->boot_cpu ? s->boot_cpu : "apu-cpu[0]";
 189    ram_addr_t ddr_low_size, ddr_high_size;
 190    qemu_irq gic_spi[GIC_NUM_SPI_INTR];
 191    Error *err = NULL;
 192
 193    ram_size = memory_region_size(s->ddr_ram);
 194
 195    /* Create the DDR Memory Regions. User friendly checks should happen at
 196     * the board level
 197     */
 198    if (ram_size > XLNX_ZYNQMP_MAX_LOW_RAM_SIZE) {
 199        /* The RAM size is above the maximum available for the low DDR.
 200         * Create the high DDR memory region as well.
 201         */
 202        assert(ram_size <= XLNX_ZYNQMP_MAX_RAM_SIZE);
 203        ddr_low_size = XLNX_ZYNQMP_MAX_LOW_RAM_SIZE;
 204        ddr_high_size = ram_size - XLNX_ZYNQMP_MAX_LOW_RAM_SIZE;
 205
 206        memory_region_init_alias(&s->ddr_ram_high, NULL,
 207                                 "ddr-ram-high", s->ddr_ram,
 208                                  ddr_low_size, ddr_high_size);
 209        memory_region_add_subregion(get_system_memory(),
 210                                    XLNX_ZYNQMP_HIGH_RAM_START,
 211                                    &s->ddr_ram_high);
 212    } else {
 213        /* RAM must be non-zero */
 214        assert(ram_size);
 215        ddr_low_size = ram_size;
 216    }
 217
 218    memory_region_init_alias(&s->ddr_ram_low, NULL,
 219                             "ddr-ram-low", s->ddr_ram,
 220                              0, ddr_low_size);
 221    memory_region_add_subregion(get_system_memory(), 0, &s->ddr_ram_low);
 222
 223    /* Create the four OCM banks */
 224    for (i = 0; i < XLNX_ZYNQMP_NUM_OCM_BANKS; i++) {
 225        char *ocm_name = g_strdup_printf("zynqmp.ocm_ram_bank_%d", i);
 226
 227        memory_region_init_ram(&s->ocm_ram[i], NULL, ocm_name,
 228                               XLNX_ZYNQMP_OCM_RAM_SIZE, &error_fatal);
 229        vmstate_register_ram_global(&s->ocm_ram[i]);
 230        memory_region_add_subregion(get_system_memory(),
 231                                    XLNX_ZYNQMP_OCM_RAM_0_ADDRESS +
 232                                        i * XLNX_ZYNQMP_OCM_RAM_SIZE,
 233                                    &s->ocm_ram[i]);
 234
 235        g_free(ocm_name);
 236    }
 237
 238    qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", GIC_NUM_SPI_INTR + 32);
 239    qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2);
 240    qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", XLNX_ZYNQMP_NUM_APU_CPUS);
 241
 242    /* Realize APUs before realizing the GIC. KVM requires this.  */
 243    for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
 244        char *name;
 245
 246        object_property_set_int(OBJECT(&s->apu_cpu[i]), QEMU_PSCI_CONDUIT_SMC,
 247                                "psci-conduit", &error_abort);
 248
 249        name = object_get_canonical_path_component(OBJECT(&s->apu_cpu[i]));
 250        if (strcmp(name, boot_cpu)) {
 251            /* Secondary CPUs start in PSCI powered-down state */
 252            object_property_set_bool(OBJECT(&s->apu_cpu[i]), true,
 253                                     "start-powered-off", &error_abort);
 254        } else {
 255            s->boot_cpu_ptr = &s->apu_cpu[i];
 256        }
 257        g_free(name);
 258
 259        object_property_set_bool(OBJECT(&s->apu_cpu[i]),
 260                                 s->secure, "has_el3", NULL);
 261        object_property_set_int(OBJECT(&s->apu_cpu[i]), GIC_BASE_ADDR,
 262                                "reset-cbar", &error_abort);
 263        object_property_set_bool(OBJECT(&s->apu_cpu[i]), true, "realized",
 264                                 &err);
 265        if (err) {
 266            error_propagate(errp, err);
 267            return;
 268        }
 269    }
 270
 271    object_property_set_bool(OBJECT(&s->gic), true, "realized", &err);
 272    if (err) {
 273        error_propagate(errp, err);
 274        return;
 275    }
 276
 277    assert(ARRAY_SIZE(xlnx_zynqmp_gic_regions) == XLNX_ZYNQMP_GIC_REGIONS);
 278    for (i = 0; i < XLNX_ZYNQMP_GIC_REGIONS; i++) {
 279        SysBusDevice *gic = SYS_BUS_DEVICE(&s->gic);
 280        const XlnxZynqMPGICRegion *r = &xlnx_zynqmp_gic_regions[i];
 281        MemoryRegion *mr = sysbus_mmio_get_region(gic, r->region_index);
 282        uint32_t addr = r->address;
 283        int j;
 284
 285        sysbus_mmio_map(gic, r->region_index, addr);
 286
 287        for (j = 0; j < XLNX_ZYNQMP_GIC_ALIASES; j++) {
 288            MemoryRegion *alias = &s->gic_mr[i][j];
 289
 290            addr += XLNX_ZYNQMP_GIC_REGION_SIZE;
 291            memory_region_init_alias(alias, OBJECT(s), "zynqmp-gic-alias", mr,
 292                                     0, XLNX_ZYNQMP_GIC_REGION_SIZE);
 293            memory_region_add_subregion(system_memory, addr, alias);
 294        }
 295    }
 296
 297    for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
 298        qemu_irq irq;
 299
 300        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i,
 301                           qdev_get_gpio_in(DEVICE(&s->apu_cpu[i]),
 302                                            ARM_CPU_IRQ));
 303        irq = qdev_get_gpio_in(DEVICE(&s->gic),
 304                               arm_gic_ppi_index(i, ARM_PHYS_TIMER_PPI));
 305        qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), 0, irq);
 306        irq = qdev_get_gpio_in(DEVICE(&s->gic),
 307                               arm_gic_ppi_index(i, ARM_VIRT_TIMER_PPI));
 308        qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), 1, irq);
 309    }
 310
 311    if (s->has_rpu) {
 312        xlnx_zynqmp_create_rpu(s, boot_cpu, &err);
 313        if (err) {
 314            error_propagate(errp, err);
 315            return;
 316        }
 317    }
 318
 319    if (!s->boot_cpu_ptr) {
 320        error_setg(errp, "ZynqMP Boot cpu %s not found", boot_cpu);
 321        return;
 322    }
 323
 324    for (i = 0; i < GIC_NUM_SPI_INTR; i++) {
 325        gic_spi[i] = qdev_get_gpio_in(DEVICE(&s->gic), i);
 326    }
 327
 328    for (i = 0; i < XLNX_ZYNQMP_NUM_GEMS; i++) {
 329        NICInfo *nd = &nd_table[i];
 330
 331        if (nd->used) {
 332            qemu_check_nic_model(nd, TYPE_CADENCE_GEM);
 333            qdev_set_nic_properties(DEVICE(&s->gem[i]), nd);
 334        }
 335        object_property_set_int(OBJECT(&s->gem[i]), 2, "num-priority-queues",
 336                                  &error_abort);
 337        object_property_set_bool(OBJECT(&s->gem[i]), true, "realized", &err);
 338        if (err) {
 339            error_propagate(errp, err);
 340            return;
 341        }
 342        sysbus_mmio_map(SYS_BUS_DEVICE(&s->gem[i]), 0, gem_addr[i]);
 343        sysbus_connect_irq(SYS_BUS_DEVICE(&s->gem[i]), 0,
 344                           gic_spi[gem_intr[i]]);
 345    }
 346
 347    for (i = 0; i < XLNX_ZYNQMP_NUM_UARTS; i++) {
 348        qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", serial_hds[i]);
 349        object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err);
 350        if (err) {
 351            error_propagate(errp, err);
 352            return;
 353        }
 354        sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, uart_addr[i]);
 355        sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0,
 356                           gic_spi[uart_intr[i]]);
 357    }
 358
 359    object_property_set_int(OBJECT(&s->sata), SATA_NUM_PORTS, "num-ports",
 360                            &error_abort);
 361    object_property_set_bool(OBJECT(&s->sata), true, "realized", &err);
 362    if (err) {
 363        error_propagate(errp, err);
 364        return;
 365    }
 366
 367    sysbus_mmio_map(SYS_BUS_DEVICE(&s->sata), 0, SATA_ADDR);
 368    sysbus_connect_irq(SYS_BUS_DEVICE(&s->sata), 0, gic_spi[SATA_INTR]);
 369
 370    for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
 371        char *bus_name;
 372
 373        object_property_set_bool(OBJECT(&s->sdhci[i]), true,
 374                                 "realized", &err);
 375        if (err) {
 376            error_propagate(errp, err);
 377            return;
 378        }
 379        sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdhci[i]), 0,
 380                        sdhci_addr[i]);
 381        sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdhci[i]), 0,
 382                           gic_spi[sdhci_intr[i]]);
 383        /* Alias controller SD bus to the SoC itself */
 384        bus_name = g_strdup_printf("sd-bus%d", i);
 385        object_property_add_alias(OBJECT(s), bus_name,
 386                                  OBJECT(&s->sdhci[i]), "sd-bus",
 387                                  &error_abort);
 388        g_free(bus_name);
 389    }
 390
 391    for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
 392        gchar *bus_name;
 393
 394        object_property_set_bool(OBJECT(&s->spi[i]), true, "realized", &err);
 395
 396        sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 0, spi_addr[i]);
 397        sysbus_connect_irq(SYS_BUS_DEVICE(&s->spi[i]), 0,
 398                           gic_spi[spi_intr[i]]);
 399
 400        /* Alias controller SPI bus to the SoC itself */
 401        bus_name = g_strdup_printf("spi%d", i);
 402        object_property_add_alias(OBJECT(s), bus_name,
 403                                  OBJECT(&s->spi[i]), "spi0",
 404                                  &error_abort);
 405        g_free(bus_name);
 406    }
 407
 408    object_property_set_bool(OBJECT(&s->dp), true, "realized", &err);
 409    if (err) {
 410        error_propagate(errp, err);
 411        return;
 412    }
 413    sysbus_mmio_map(SYS_BUS_DEVICE(&s->dp), 0, DP_ADDR);
 414    sysbus_connect_irq(SYS_BUS_DEVICE(&s->dp), 0, gic_spi[DP_IRQ]);
 415
 416    object_property_set_bool(OBJECT(&s->dpdma), true, "realized", &err);
 417    if (err) {
 418        error_propagate(errp, err);
 419        return;
 420    }
 421    object_property_set_link(OBJECT(&s->dp), OBJECT(&s->dpdma), "dpdma",
 422                             &error_abort);
 423    sysbus_mmio_map(SYS_BUS_DEVICE(&s->dpdma), 0, DPDMA_ADDR);
 424    sysbus_connect_irq(SYS_BUS_DEVICE(&s->dpdma), 0, gic_spi[DPDMA_IRQ]);
 425}
 426
 427static Property xlnx_zynqmp_props[] = {
 428    DEFINE_PROP_STRING("boot-cpu", XlnxZynqMPState, boot_cpu),
 429    DEFINE_PROP_BOOL("secure", XlnxZynqMPState, secure, false),
 430    DEFINE_PROP_BOOL("has_rpu", XlnxZynqMPState, has_rpu, false),
 431    DEFINE_PROP_END_OF_LIST()
 432};
 433
 434static void xlnx_zynqmp_class_init(ObjectClass *oc, void *data)
 435{
 436    DeviceClass *dc = DEVICE_CLASS(oc);
 437
 438    dc->props = xlnx_zynqmp_props;
 439    dc->realize = xlnx_zynqmp_realize;
 440
 441    /*
 442     * Reason: creates an ARM CPU, thus use after free(), see
 443     * arm_cpu_class_init()
 444     */
 445    dc->cannot_destroy_with_object_finalize_yet = true;
 446}
 447
 448static const TypeInfo xlnx_zynqmp_type_info = {
 449    .name = TYPE_XLNX_ZYNQMP,
 450    .parent = TYPE_DEVICE,
 451    .instance_size = sizeof(XlnxZynqMPState),
 452    .instance_init = xlnx_zynqmp_init,
 453    .class_init = xlnx_zynqmp_class_init,
 454};
 455
 456static void xlnx_zynqmp_register_types(void)
 457{
 458    type_register_static(&xlnx_zynqmp_type_info);
 459}
 460
 461type_init(xlnx_zynqmp_register_types)
 462