qemu/hw/arm/xlnx-versal.c
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   1/*
   2 * Xilinx Versal SoC model.
   3 *
   4 * Copyright (c) 2018 Xilinx Inc.
   5 * Written by Edgar E. Iglesias
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2 or
   9 * (at your option) any later version.
  10 */
  11
  12#include "qemu/osdep.h"
  13#include "qapi/error.h"
  14#include "qemu/log.h"
  15#include "qemu/module.h"
  16#include "hw/sysbus.h"
  17#include "net/net.h"
  18#include "sysemu/sysemu.h"
  19#include "sysemu/kvm.h"
  20#include "hw/arm/boot.h"
  21#include "kvm_arm.h"
  22#include "hw/misc/unimp.h"
  23#include "hw/arm/xlnx-versal.h"
  24
  25#define XLNX_VERSAL_ACPU_TYPE ARM_CPU_TYPE_NAME("cortex-a72")
  26#define GEM_REVISION        0x40070106
  27
  28static void versal_create_apu_cpus(Versal *s)
  29{
  30    int i;
  31
  32    for (i = 0; i < ARRAY_SIZE(s->fpd.apu.cpu); i++) {
  33        Object *obj;
  34
  35        object_initialize_child(OBJECT(s), "apu-cpu[*]", &s->fpd.apu.cpu[i],
  36                                XLNX_VERSAL_ACPU_TYPE);
  37        obj = OBJECT(&s->fpd.apu.cpu[i]);
  38        object_property_set_int(obj, "psci-conduit", s->cfg.psci_conduit,
  39                                &error_abort);
  40        if (i) {
  41            /* Secondary CPUs start in PSCI powered-down state */
  42            object_property_set_bool(obj, "start-powered-off", true,
  43                                     &error_abort);
  44        }
  45
  46        object_property_set_int(obj, "core-count", ARRAY_SIZE(s->fpd.apu.cpu),
  47                                &error_abort);
  48        object_property_set_link(obj, "memory", OBJECT(&s->fpd.apu.mr),
  49                                 &error_abort);
  50        qdev_realize(DEVICE(obj), NULL, &error_fatal);
  51    }
  52}
  53
  54static void versal_create_apu_gic(Versal *s, qemu_irq *pic)
  55{
  56    static const uint64_t addrs[] = {
  57        MM_GIC_APU_DIST_MAIN,
  58        MM_GIC_APU_REDIST_0
  59    };
  60    SysBusDevice *gicbusdev;
  61    DeviceState *gicdev;
  62    int nr_apu_cpus = ARRAY_SIZE(s->fpd.apu.cpu);
  63    int i;
  64
  65    object_initialize_child(OBJECT(s), "apu-gic", &s->fpd.apu.gic,
  66                            gicv3_class_name());
  67    gicbusdev = SYS_BUS_DEVICE(&s->fpd.apu.gic);
  68    gicdev = DEVICE(&s->fpd.apu.gic);
  69    qdev_prop_set_uint32(gicdev, "revision", 3);
  70    qdev_prop_set_uint32(gicdev, "num-cpu", 2);
  71    qdev_prop_set_uint32(gicdev, "num-irq", XLNX_VERSAL_NR_IRQS + 32);
  72    qdev_prop_set_uint32(gicdev, "len-redist-region-count", 1);
  73    qdev_prop_set_uint32(gicdev, "redist-region-count[0]", 2);
  74    qdev_prop_set_bit(gicdev, "has-security-extensions", true);
  75
  76    sysbus_realize(SYS_BUS_DEVICE(&s->fpd.apu.gic), &error_fatal);
  77
  78    for (i = 0; i < ARRAY_SIZE(addrs); i++) {
  79        MemoryRegion *mr;
  80
  81        mr = sysbus_mmio_get_region(gicbusdev, i);
  82        memory_region_add_subregion(&s->fpd.apu.mr, addrs[i], mr);
  83    }
  84
  85    for (i = 0; i < nr_apu_cpus; i++) {
  86        DeviceState *cpudev = DEVICE(&s->fpd.apu.cpu[i]);
  87        int ppibase = XLNX_VERSAL_NR_IRQS + i * GIC_INTERNAL + GIC_NR_SGIS;
  88        qemu_irq maint_irq;
  89        int ti;
  90        /* Mapping from the output timer irq lines from the CPU to the
  91         * GIC PPI inputs.
  92         */
  93        const int timer_irq[] = {
  94            [GTIMER_PHYS] = VERSAL_TIMER_NS_EL1_IRQ,
  95            [GTIMER_VIRT] = VERSAL_TIMER_VIRT_IRQ,
  96            [GTIMER_HYP]  = VERSAL_TIMER_NS_EL2_IRQ,
  97            [GTIMER_SEC]  = VERSAL_TIMER_S_EL1_IRQ,
  98        };
  99
 100        for (ti = 0; ti < ARRAY_SIZE(timer_irq); ti++) {
 101            qdev_connect_gpio_out(cpudev, ti,
 102                                  qdev_get_gpio_in(gicdev,
 103                                                   ppibase + timer_irq[ti]));
 104        }
 105        maint_irq = qdev_get_gpio_in(gicdev,
 106                                        ppibase + VERSAL_GIC_MAINT_IRQ);
 107        qdev_connect_gpio_out_named(cpudev, "gicv3-maintenance-interrupt",
 108                                    0, maint_irq);
 109        sysbus_connect_irq(gicbusdev, i, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
 110        sysbus_connect_irq(gicbusdev, i + nr_apu_cpus,
 111                           qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
 112        sysbus_connect_irq(gicbusdev, i + 2 * nr_apu_cpus,
 113                           qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
 114        sysbus_connect_irq(gicbusdev, i + 3 * nr_apu_cpus,
 115                           qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
 116    }
 117
 118    for (i = 0; i < XLNX_VERSAL_NR_IRQS; i++) {
 119        pic[i] = qdev_get_gpio_in(gicdev, i);
 120    }
 121}
 122
 123static void versal_create_uarts(Versal *s, qemu_irq *pic)
 124{
 125    int i;
 126
 127    for (i = 0; i < ARRAY_SIZE(s->lpd.iou.uart); i++) {
 128        static const int irqs[] = { VERSAL_UART0_IRQ_0, VERSAL_UART1_IRQ_0};
 129        static const uint64_t addrs[] = { MM_UART0, MM_UART1 };
 130        char *name = g_strdup_printf("uart%d", i);
 131        DeviceState *dev;
 132        MemoryRegion *mr;
 133
 134        object_initialize_child(OBJECT(s), name, &s->lpd.iou.uart[i],
 135                                TYPE_PL011);
 136        dev = DEVICE(&s->lpd.iou.uart[i]);
 137        qdev_prop_set_chr(dev, "chardev", serial_hd(i));
 138        sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
 139
 140        mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
 141        memory_region_add_subregion(&s->mr_ps, addrs[i], mr);
 142
 143        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[irqs[i]]);
 144        g_free(name);
 145    }
 146}
 147
 148static void versal_create_gems(Versal *s, qemu_irq *pic)
 149{
 150    int i;
 151
 152    for (i = 0; i < ARRAY_SIZE(s->lpd.iou.gem); i++) {
 153        static const int irqs[] = { VERSAL_GEM0_IRQ_0, VERSAL_GEM1_IRQ_0};
 154        static const uint64_t addrs[] = { MM_GEM0, MM_GEM1 };
 155        char *name = g_strdup_printf("gem%d", i);
 156        NICInfo *nd = &nd_table[i];
 157        DeviceState *dev;
 158        MemoryRegion *mr;
 159
 160        object_initialize_child(OBJECT(s), name, &s->lpd.iou.gem[i],
 161                                TYPE_CADENCE_GEM);
 162        dev = DEVICE(&s->lpd.iou.gem[i]);
 163        /* FIXME use qdev NIC properties instead of nd_table[] */
 164        if (nd->used) {
 165            qemu_check_nic_model(nd, "cadence_gem");
 166            qdev_set_nic_properties(dev, nd);
 167        }
 168        object_property_set_int(OBJECT(dev), "phy-addr", 23, &error_abort);
 169        object_property_set_int(OBJECT(dev), "num-priority-queues", 2,
 170                                &error_abort);
 171        object_property_set_link(OBJECT(dev), "dma", OBJECT(&s->mr_ps),
 172                                 &error_abort);
 173        sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
 174
 175        mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
 176        memory_region_add_subregion(&s->mr_ps, addrs[i], mr);
 177
 178        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[irqs[i]]);
 179        g_free(name);
 180    }
 181}
 182
 183static void versal_create_admas(Versal *s, qemu_irq *pic)
 184{
 185    int i;
 186
 187    for (i = 0; i < ARRAY_SIZE(s->lpd.iou.adma); i++) {
 188        char *name = g_strdup_printf("adma%d", i);
 189        DeviceState *dev;
 190        MemoryRegion *mr;
 191
 192        object_initialize_child(OBJECT(s), name, &s->lpd.iou.adma[i],
 193                                TYPE_XLNX_ZDMA);
 194        dev = DEVICE(&s->lpd.iou.adma[i]);
 195        object_property_set_int(OBJECT(dev), "bus-width", 128, &error_abort);
 196        sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
 197
 198        mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
 199        memory_region_add_subregion(&s->mr_ps,
 200                                    MM_ADMA_CH0 + i * MM_ADMA_CH0_SIZE, mr);
 201
 202        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[VERSAL_ADMA_IRQ_0 + i]);
 203        g_free(name);
 204    }
 205}
 206
 207#define SDHCI_CAPABILITIES  0x280737ec6481 /* Same as on ZynqMP.  */
 208static void versal_create_sds(Versal *s, qemu_irq *pic)
 209{
 210    int i;
 211
 212    for (i = 0; i < ARRAY_SIZE(s->pmc.iou.sd); i++) {
 213        DeviceState *dev;
 214        MemoryRegion *mr;
 215
 216        object_initialize_child(OBJECT(s), "sd[*]", &s->pmc.iou.sd[i],
 217                                TYPE_SYSBUS_SDHCI);
 218        dev = DEVICE(&s->pmc.iou.sd[i]);
 219
 220        object_property_set_uint(OBJECT(dev), "sd-spec-version", 3,
 221                                 &error_fatal);
 222        object_property_set_uint(OBJECT(dev), "capareg", SDHCI_CAPABILITIES,
 223                                 &error_fatal);
 224        object_property_set_uint(OBJECT(dev), "uhs", UHS_I, &error_fatal);
 225        sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
 226
 227        mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
 228        memory_region_add_subregion(&s->mr_ps,
 229                                    MM_PMC_SD0 + i * MM_PMC_SD0_SIZE, mr);
 230
 231        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
 232                           pic[VERSAL_SD0_IRQ_0 + i * 2]);
 233    }
 234}
 235
 236static void versal_create_rtc(Versal *s, qemu_irq *pic)
 237{
 238    SysBusDevice *sbd;
 239    MemoryRegion *mr;
 240
 241    object_initialize_child(OBJECT(s), "rtc", &s->pmc.rtc,
 242                            TYPE_XLNX_ZYNQMP_RTC);
 243    sbd = SYS_BUS_DEVICE(&s->pmc.rtc);
 244    sysbus_realize(SYS_BUS_DEVICE(sbd), &error_fatal);
 245
 246    mr = sysbus_mmio_get_region(sbd, 0);
 247    memory_region_add_subregion(&s->mr_ps, MM_PMC_RTC, mr);
 248
 249    /*
 250     * TODO: Connect the ALARM and SECONDS interrupts once our RTC model
 251     * supports them.
 252     */
 253    sysbus_connect_irq(sbd, 1, pic[VERSAL_RTC_APB_ERR_IRQ]);
 254}
 255
 256/* This takes the board allocated linear DDR memory and creates aliases
 257 * for each split DDR range/aperture on the Versal address map.
 258 */
 259static void versal_map_ddr(Versal *s)
 260{
 261    uint64_t size = memory_region_size(s->cfg.mr_ddr);
 262    /* Describes the various split DDR access regions.  */
 263    static const struct {
 264        uint64_t base;
 265        uint64_t size;
 266    } addr_ranges[] = {
 267        { MM_TOP_DDR, MM_TOP_DDR_SIZE },
 268        { MM_TOP_DDR_2, MM_TOP_DDR_2_SIZE },
 269        { MM_TOP_DDR_3, MM_TOP_DDR_3_SIZE },
 270        { MM_TOP_DDR_4, MM_TOP_DDR_4_SIZE }
 271    };
 272    uint64_t offset = 0;
 273    int i;
 274
 275    assert(ARRAY_SIZE(addr_ranges) == ARRAY_SIZE(s->noc.mr_ddr_ranges));
 276    for (i = 0; i < ARRAY_SIZE(addr_ranges) && size; i++) {
 277        char *name;
 278        uint64_t mapsize;
 279
 280        mapsize = size < addr_ranges[i].size ? size : addr_ranges[i].size;
 281        name = g_strdup_printf("noc-ddr-range%d", i);
 282        /* Create the MR alias.  */
 283        memory_region_init_alias(&s->noc.mr_ddr_ranges[i], OBJECT(s),
 284                                 name, s->cfg.mr_ddr,
 285                                 offset, mapsize);
 286
 287        /* Map it onto the NoC MR.  */
 288        memory_region_add_subregion(&s->mr_ps, addr_ranges[i].base,
 289                                    &s->noc.mr_ddr_ranges[i]);
 290        offset += mapsize;
 291        size -= mapsize;
 292        g_free(name);
 293    }
 294}
 295
 296static void versal_unimp_area(Versal *s, const char *name,
 297                                MemoryRegion *mr,
 298                                hwaddr base, hwaddr size)
 299{
 300    DeviceState *dev = qdev_new(TYPE_UNIMPLEMENTED_DEVICE);
 301    MemoryRegion *mr_dev;
 302
 303    qdev_prop_set_string(dev, "name", name);
 304    qdev_prop_set_uint64(dev, "size", size);
 305    object_property_add_child(OBJECT(s), name, OBJECT(dev));
 306    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 307
 308    mr_dev = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
 309    memory_region_add_subregion(mr, base, mr_dev);
 310}
 311
 312static void versal_unimp(Versal *s)
 313{
 314    versal_unimp_area(s, "psm", &s->mr_ps,
 315                        MM_PSM_START, MM_PSM_END - MM_PSM_START);
 316    versal_unimp_area(s, "crl", &s->mr_ps,
 317                        MM_CRL, MM_CRL_SIZE);
 318    versal_unimp_area(s, "crf", &s->mr_ps,
 319                        MM_FPD_CRF, MM_FPD_CRF_SIZE);
 320    versal_unimp_area(s, "crp", &s->mr_ps,
 321                        MM_PMC_CRP, MM_PMC_CRP_SIZE);
 322    versal_unimp_area(s, "iou-scntr", &s->mr_ps,
 323                        MM_IOU_SCNTR, MM_IOU_SCNTR_SIZE);
 324    versal_unimp_area(s, "iou-scntr-seucre", &s->mr_ps,
 325                        MM_IOU_SCNTRS, MM_IOU_SCNTRS_SIZE);
 326}
 327
 328static void versal_realize(DeviceState *dev, Error **errp)
 329{
 330    Versal *s = XLNX_VERSAL(dev);
 331    qemu_irq pic[XLNX_VERSAL_NR_IRQS];
 332
 333    versal_create_apu_cpus(s);
 334    versal_create_apu_gic(s, pic);
 335    versal_create_uarts(s, pic);
 336    versal_create_gems(s, pic);
 337    versal_create_admas(s, pic);
 338    versal_create_sds(s, pic);
 339    versal_create_rtc(s, pic);
 340    versal_map_ddr(s);
 341    versal_unimp(s);
 342
 343    /* Create the On Chip Memory (OCM).  */
 344    memory_region_init_ram(&s->lpd.mr_ocm, OBJECT(s), "ocm",
 345                           MM_OCM_SIZE, &error_fatal);
 346
 347    memory_region_add_subregion_overlap(&s->mr_ps, MM_OCM, &s->lpd.mr_ocm, 0);
 348    memory_region_add_subregion_overlap(&s->fpd.apu.mr, 0, &s->mr_ps, 0);
 349}
 350
 351static void versal_init(Object *obj)
 352{
 353    Versal *s = XLNX_VERSAL(obj);
 354
 355    memory_region_init(&s->fpd.apu.mr, obj, "mr-apu", UINT64_MAX);
 356    memory_region_init(&s->mr_ps, obj, "mr-ps-switch", UINT64_MAX);
 357}
 358
 359static Property versal_properties[] = {
 360    DEFINE_PROP_LINK("ddr", Versal, cfg.mr_ddr, TYPE_MEMORY_REGION,
 361                     MemoryRegion *),
 362    DEFINE_PROP_UINT32("psci-conduit", Versal, cfg.psci_conduit, 0),
 363    DEFINE_PROP_END_OF_LIST()
 364};
 365
 366static void versal_class_init(ObjectClass *klass, void *data)
 367{
 368    DeviceClass *dc = DEVICE_CLASS(klass);
 369
 370    dc->realize = versal_realize;
 371    device_class_set_props(dc, versal_properties);
 372    /* No VMSD since we haven't got any top-level SoC state to save.  */
 373}
 374
 375static const TypeInfo versal_info = {
 376    .name = TYPE_XLNX_VERSAL,
 377    .parent = TYPE_SYS_BUS_DEVICE,
 378    .instance_size = sizeof(Versal),
 379    .instance_init = versal_init,
 380    .class_init = versal_class_init,
 381};
 382
 383static void versal_register_types(void)
 384{
 385    type_register_static(&versal_info);
 386}
 387
 388type_init(versal_register_types);
 389