hw/ppc/pnv.c

   1 /*
   2  * QEMU PowerPC PowerNV machine model
   3  *
   4  * Copyright (c) 2016, IBM Corporation.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "qemu/osdep.h"
  21 #include "qapi/error.h"
  22 #include "sysemu/sysemu.h"
  23 #include "sysemu/numa.h"
  24 #include "hw/hw.h"
  25 #include "target/ppc/cpu.h"
  26 #include "qemu/log.h"
  27 #include "hw/ppc/fdt.h"
  28 #include "hw/ppc/ppc.h"
  29 #include "hw/ppc/pnv.h"
  30 #include "hw/ppc/pnv_core.h"
  31 #include "hw/loader.h"
  32 #include "exec/address-spaces.h"
  33 #include "qemu/cutils.h"
  34 #include "qapi/visitor.h"
  35
  36 #include "hw/ppc/pnv_xscom.h"
  37
  38 #include "hw/isa/isa.h"
  39 #include "hw/char/serial.h"
  40 #include "hw/timer/mc146818rtc.h"
  41
  42 #include <libfdt.h>
  43
  44 #define FDT_MAX_SIZE            0x00100000
  45
  46 #define FW_FILE_NAME            "skiboot.lid"
  47 #define FW_LOAD_ADDR            0x0
  48 #define FW_MAX_SIZE             0x00400000
  49
  50 #define KERNEL_LOAD_ADDR        0x20000000
  51 #define INITRD_LOAD_ADDR        0x40000000
  52
  53 /*
  54  * On Power Systems E880 (POWER8), the max cpus (threads) should be :
  55  *     4 * 4 sockets * 12 cores * 8 threads = 1536
  56  * Let's make it 2^11
  57  */
  58 #define MAX_CPUS                2048
  59
  60 /*
  61  * Memory nodes are created by hostboot, one for each range of memory
  62  * that has a different "affinity". In practice, it means one range
  63  * per chip.
  64  */
  65 static void powernv_populate_memory_node(void *fdt, int chip_id, hwaddr start,
  66                                          hwaddr size)
  67 {
  68     char *mem_name;
  69     uint64_t mem_reg_property[2];
  70     int off;
  71
  72     mem_reg_property[0] = cpu_to_be64(start);
  73     mem_reg_property[1] = cpu_to_be64(size);
  74
  75     mem_name = g_strdup_printf("memory@%"HWADDR_PRIx, start);
  76     off = fdt_add_subnode(fdt, 0, mem_name);
  77     g_free(mem_name);
  78
  79     _FDT((fdt_setprop_string(fdt, off, "device_type", "memory")));
  80     _FDT((fdt_setprop(fdt, off, "reg", mem_reg_property,
  81                        sizeof(mem_reg_property))));
  82     _FDT((fdt_setprop_cell(fdt, off, "ibm,chip-id", chip_id)));
  83 }
  84
  85 static int get_cpus_node(void *fdt)
  86 {
  87     int cpus_offset = fdt_path_offset(fdt, "/cpus");
  88
  89     if (cpus_offset < 0) {
  90         cpus_offset = fdt_add_subnode(fdt, fdt_path_offset(fdt, "/"),
  91                                       "cpus");
  92         if (cpus_offset) {
  93             _FDT((fdt_setprop_cell(fdt, cpus_offset, "#address-cells", 0x1)));
  94             _FDT((fdt_setprop_cell(fdt, cpus_offset, "#size-cells", 0x0)));
  95         }
  96     }
  97     _FDT(cpus_offset);
  98     return cpus_offset;
  99 }
 100
 101 /*
 102  * The PowerNV cores (and threads) need to use real HW ids and not an
 103  * incremental index like it has been done on other platforms. This HW
 104  * id is stored in the CPU PIR, it is used to create cpu nodes in the
 105  * device tree, used in XSCOM to address cores and in interrupt
 106  * servers.
 107  */
 108 static void powernv_create_core_node(PnvChip *chip, PnvCore *pc, void *fdt)
 109 {
 110     CPUState *cs = CPU(DEVICE(pc->threads));
 111     DeviceClass *dc = DEVICE_GET_CLASS(cs);
 112     PowerPCCPU *cpu = POWERPC_CPU(cs);
 113     int smt_threads = CPU_CORE(pc)->nr_threads;
 114     CPUPPCState *env = &cpu->env;
 115     PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);
 116     uint32_t servers_prop[smt_threads];
 117     int i;
 118     uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40),
 119                        0xffffffff, 0xffffffff};
 120     uint32_t tbfreq = PNV_TIMEBASE_FREQ;
 121     uint32_t cpufreq = 1000000000;
 122     uint32_t page_sizes_prop[64];
 123     size_t page_sizes_prop_size;
 124     const uint8_t pa_features[] = { 24, 0,
 125                                     0xf6, 0x3f, 0xc7, 0xc0, 0x80, 0xf0,
 126                                     0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
 127                                     0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
 128                                     0x80, 0x00, 0x80, 0x00, 0x80, 0x00 };
 129     int offset;
 130     char *nodename;
 131     int cpus_offset = get_cpus_node(fdt);
 132
 133     nodename = g_strdup_printf("%s@%x", dc->fw_name, pc->pir);
 134     offset = fdt_add_subnode(fdt, cpus_offset, nodename);
 135     _FDT(offset);
 136     g_free(nodename);
 137
 138     _FDT((fdt_setprop_cell(fdt, offset, "ibm,chip-id", chip->chip_id)));
 139
 140     _FDT((fdt_setprop_cell(fdt, offset, "reg", pc->pir)));
 141     _FDT((fdt_setprop_cell(fdt, offset, "ibm,pir", pc->pir)));
 142     _FDT((fdt_setprop_string(fdt, offset, "device_type", "cpu")));
 143
 144     _FDT((fdt_setprop_cell(fdt, offset, "cpu-version", env->spr[SPR_PVR])));
 145     _FDT((fdt_setprop_cell(fdt, offset, "d-cache-block-size",
 146                             env->dcache_line_size)));
 147     _FDT((fdt_setprop_cell(fdt, offset, "d-cache-line-size",
 148                             env->dcache_line_size)));
 149     _FDT((fdt_setprop_cell(fdt, offset, "i-cache-block-size",
 150                             env->icache_line_size)));
 151     _FDT((fdt_setprop_cell(fdt, offset, "i-cache-line-size",
 152                             env->icache_line_size)));
 153
 154     if (pcc->l1_dcache_size) {
 155         _FDT((fdt_setprop_cell(fdt, offset, "d-cache-size",
 156                                pcc->l1_dcache_size)));
 157     } else {
 158         error_report("Warning: Unknown L1 dcache size for cpu");
 159     }
 160     if (pcc->l1_icache_size) {
 161         _FDT((fdt_setprop_cell(fdt, offset, "i-cache-size",
 162                                pcc->l1_icache_size)));
 163     } else {
 164         error_report("Warning: Unknown L1 icache size for cpu");
 165     }
 166
 167     _FDT((fdt_setprop_cell(fdt, offset, "timebase-frequency", tbfreq)));
 168     _FDT((fdt_setprop_cell(fdt, offset, "clock-frequency", cpufreq)));
 169     _FDT((fdt_setprop_cell(fdt, offset, "ibm,slb-size", env->slb_nr)));
 170     _FDT((fdt_setprop_string(fdt, offset, "status", "okay")));
 171     _FDT((fdt_setprop(fdt, offset, "64-bit", NULL, 0)));
 172
 173     if (env->spr_cb[SPR_PURR].oea_read) {
 174         _FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0)));
 175     }
 176
 177     if (env->mmu_model & POWERPC_MMU_1TSEG) {
 178         _FDT((fdt_setprop(fdt, offset, "ibm,processor-segment-sizes",
 179                            segs, sizeof(segs))));
 180     }
 181
 182     /* Advertise VMX/VSX (vector extensions) if available
 183      *   0 / no property == no vector extensions
 184      *   1               == VMX / Altivec available
 185      *   2               == VSX available */
 186     if (env->insns_flags & PPC_ALTIVEC) {
 187         uint32_t vmx = (env->insns_flags2 & PPC2_VSX) ? 2 : 1;
 188
 189         _FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", vmx)));
 190     }
 191
 192     /* Advertise DFP (Decimal Floating Point) if available
 193      *   0 / no property == no DFP
 194      *   1               == DFP available */
 195     if (env->insns_flags2 & PPC2_DFP) {
 196         _FDT((fdt_setprop_cell(fdt, offset, "ibm,dfp", 1)));
 197     }
 198
 199     page_sizes_prop_size = ppc_create_page_sizes_prop(env, page_sizes_prop,
 200                                                   sizeof(page_sizes_prop));
 201     if (page_sizes_prop_size) {
 202         _FDT((fdt_setprop(fdt, offset, "ibm,segment-page-sizes",
 203                            page_sizes_prop, page_sizes_prop_size)));
 204     }
 205
 206     _FDT((fdt_setprop(fdt, offset, "ibm,pa-features",
 207                        pa_features, sizeof(pa_features))));
 208
 209     /* Build interrupt servers properties */
 210     for (i = 0; i < smt_threads; i++) {
 211         servers_prop[i] = cpu_to_be32(pc->pir + i);
 212     }
 213     _FDT((fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s",
 214                        servers_prop, sizeof(servers_prop))));
 215 }
 216
 217 static void powernv_populate_chip(PnvChip *chip, void *fdt)
 218 {
 219     PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip);
 220     char *typename = pnv_core_typename(pcc->cpu_model);
 221     size_t typesize = object_type_get_instance_size(typename);
 222     int i;
 223
 224     pnv_xscom_populate(chip, fdt, 0);
 225
 226     for (i = 0; i < chip->nr_cores; i++) {
 227         PnvCore *pnv_core = PNV_CORE(chip->cores + i * typesize);
 228
 229         powernv_create_core_node(chip, pnv_core, fdt);
 230     }
 231
 232     if (chip->ram_size) {
 233         powernv_populate_memory_node(fdt, chip->chip_id, chip->ram_start,
 234                                      chip->ram_size);
 235     }
 236     g_free(typename);
 237 }
 238
 239 static void *powernv_create_fdt(MachineState *machine)
 240 {
 241     const char plat_compat[] = "qemu,powernv\0ibm,powernv";
 242     PnvMachineState *pnv = POWERNV_MACHINE(machine);
 243     void *fdt;
 244     char *buf;
 245     int off;
 246     int i;
 247
 248     fdt = g_malloc0(FDT_MAX_SIZE);
 249     _FDT((fdt_create_empty_tree(fdt, FDT_MAX_SIZE)));
 250
 251     /* Root node */
 252     _FDT((fdt_setprop_cell(fdt, 0, "#address-cells", 0x2)));
 253     _FDT((fdt_setprop_cell(fdt, 0, "#size-cells", 0x2)));
 254     _FDT((fdt_setprop_string(fdt, 0, "model",
 255                              "IBM PowerNV (emulated by qemu)")));
 256     _FDT((fdt_setprop(fdt, 0, "compatible", plat_compat,
 257                       sizeof(plat_compat))));
 258
 259     buf =  qemu_uuid_unparse_strdup(&qemu_uuid);
 260     _FDT((fdt_setprop_string(fdt, 0, "vm,uuid", buf)));
 261     if (qemu_uuid_set) {
 262         _FDT((fdt_property_string(fdt, "system-id", buf)));
 263     }
 264     g_free(buf);
 265
 266     off = fdt_add_subnode(fdt, 0, "chosen");
 267     if (machine->kernel_cmdline) {
 268         _FDT((fdt_setprop_string(fdt, off, "bootargs",
 269                                  machine->kernel_cmdline)));
 270     }
 271
 272     if (pnv->initrd_size) {
 273         uint32_t start_prop = cpu_to_be32(pnv->initrd_base);
 274         uint32_t end_prop = cpu_to_be32(pnv->initrd_base + pnv->initrd_size);
 275
 276         _FDT((fdt_setprop(fdt, off, "linux,initrd-start",
 277                                &start_prop, sizeof(start_prop))));
 278         _FDT((fdt_setprop(fdt, off, "linux,initrd-end",
 279                                &end_prop, sizeof(end_prop))));
 280     }
 281
 282     /* Populate device tree for each chip */
 283     for (i = 0; i < pnv->num_chips; i++) {
 284         powernv_populate_chip(pnv->chips[i], fdt);
 285     }
 286     return fdt;
 287 }
 288
 289 static void ppc_powernv_reset(void)
 290 {
 291     MachineState *machine = MACHINE(qdev_get_machine());
 292     void *fdt;
 293
 294     qemu_devices_reset();
 295
 296     fdt = powernv_create_fdt(machine);
 297
 298     /* Pack resulting tree */
 299     _FDT((fdt_pack(fdt)));
 300
 301     cpu_physical_memory_write(PNV_FDT_ADDR, fdt, fdt_totalsize(fdt));
 302 }
 303
 304 /* If we don't use the built-in LPC interrupt deserializer, we need
 305  * to provide a set of qirqs for the ISA bus or things will go bad.
 306  *
 307  * Most machines using pre-Naples chips (without said deserializer)
 308  * have a CPLD that will collect the SerIRQ and shoot them as a
 309  * single level interrupt to the P8 chip. So let's setup a hook
 310  * for doing just that.
 311  *
 312  * Note: The actual interrupt input isn't emulated yet, this will
 313  * come with the PSI bridge model.
 314  */
 315 static void pnv_lpc_isa_irq_handler_cpld(void *opaque, int n, int level)
 316 {
 317     /* We don't yet emulate the PSI bridge which provides the external
 318      * interrupt, so just drop interrupts on the floor
 319      */
 320 }
 321
 322 static void pnv_lpc_isa_irq_handler(void *opaque, int n, int level)
 323 {
 324      /* XXX TODO */
 325 }
 326
 327 static ISABus *pnv_isa_create(PnvChip *chip)
 328 {
 329     PnvLpcController *lpc = &chip->lpc;
 330     ISABus *isa_bus;
 331     qemu_irq *irqs;
 332     PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip);
 333
 334     /* let isa_bus_new() create its own bridge on SysBus otherwise
 335      * devices speficied on the command line won't find the bus and
 336      * will fail to create.
 337      */
 338     isa_bus = isa_bus_new(NULL, &lpc->isa_mem, &lpc->isa_io,
 339                           &error_fatal);
 340
 341     /* Not all variants have a working serial irq decoder. If not,
 342      * handling of LPC interrupts becomes a platform issue (some
 343      * platforms have a CPLD to do it).
 344      */
 345     if (pcc->chip_type == PNV_CHIP_POWER8NVL) {
 346         irqs = qemu_allocate_irqs(pnv_lpc_isa_irq_handler, chip, ISA_NUM_IRQS);
 347     } else {
 348         irqs = qemu_allocate_irqs(pnv_lpc_isa_irq_handler_cpld, chip,
 349                                   ISA_NUM_IRQS);
 350     }
 351
 352     isa_bus_irqs(isa_bus, irqs);
 353     return isa_bus;
 354 }
 355
 356 static void ppc_powernv_init(MachineState *machine)
 357 {
 358     PnvMachineState *pnv = POWERNV_MACHINE(machine);
 359     MemoryRegion *ram;
 360     char *fw_filename;
 361     long fw_size;
 362     int i;
 363     char *chip_typename;
 364
 365     /* allocate RAM */
 366     if (machine->ram_size < (1 * G_BYTE)) {
 367         error_report("Warning: skiboot may not work with < 1GB of RAM");
 368     }
 369
 370     ram = g_new(MemoryRegion, 1);
 371     memory_region_allocate_system_memory(ram, NULL, "ppc_powernv.ram",
 372                                          machine->ram_size);
 373     memory_region_add_subregion(get_system_memory(), 0, ram);
 374
 375     /* load skiboot firmware  */
 376     if (bios_name == NULL) {
 377         bios_name = FW_FILE_NAME;
 378     }
 379
 380     fw_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 381
 382     fw_size = load_image_targphys(fw_filename, FW_LOAD_ADDR, FW_MAX_SIZE);
 383     if (fw_size < 0) {
 384         hw_error("qemu: could not load OPAL '%s'\n", fw_filename);
 385         exit(1);
 386     }
 387     g_free(fw_filename);
 388
 389     /* load kernel */
 390     if (machine->kernel_filename) {
 391         long kernel_size;
 392
 393         kernel_size = load_image_targphys(machine->kernel_filename,
 394                                           KERNEL_LOAD_ADDR, 0x2000000);
 395         if (kernel_size < 0) {
 396             hw_error("qemu: could not load kernel'%s'\n",
 397                      machine->kernel_filename);
 398             exit(1);
 399         }
 400     }
 401
 402     /* load initrd */
 403     if (machine->initrd_filename) {
 404         pnv->initrd_base = INITRD_LOAD_ADDR;
 405         pnv->initrd_size = load_image_targphys(machine->initrd_filename,
 406                                   pnv->initrd_base, 0x10000000); /* 128MB max */
 407         if (pnv->initrd_size < 0) {
 408             error_report("qemu: could not load initial ram disk '%s'",
 409                          machine->initrd_filename);
 410             exit(1);
 411         }
 412     }
 413
 414     /* We need some cpu model to instantiate the PnvChip class */
 415     if (machine->cpu_model == NULL) {
 416         machine->cpu_model = "POWER8";
 417     }
 418
 419     /* Create the processor chips */
 420     chip_typename = g_strdup_printf(TYPE_PNV_CHIP "-%s", machine->cpu_model);
 421     if (!object_class_by_name(chip_typename)) {
 422         error_report("qemu: invalid CPU model '%s' for %s machine",
 423                      machine->cpu_model, MACHINE_GET_CLASS(machine)->name);
 424         exit(1);
 425     }
 426
 427     pnv->chips = g_new0(PnvChip *, pnv->num_chips);
 428     for (i = 0; i < pnv->num_chips; i++) {
 429         char chip_name[32];
 430         Object *chip = object_new(chip_typename);
 431
 432         pnv->chips[i] = PNV_CHIP(chip);
 433
 434         /* TODO: put all the memory in one node on chip 0 until we find a
 435          * way to specify different ranges for each chip
 436          */
 437         if (i == 0) {
 438             object_property_set_int(chip, machine->ram_size, "ram-size",
 439                                     &error_fatal);
 440         }
 441
 442         snprintf(chip_name, sizeof(chip_name), "chip[%d]", PNV_CHIP_HWID(i));
 443         object_property_add_child(OBJECT(pnv), chip_name, chip, &error_fatal);
 444         object_property_set_int(chip, PNV_CHIP_HWID(i), "chip-id",
 445                                 &error_fatal);
 446         object_property_set_int(chip, smp_cores, "nr-cores", &error_fatal);
 447         object_property_set_bool(chip, true, "realized", &error_fatal);
 448     }
 449     g_free(chip_typename);
 450
 451     /* Instantiate ISA bus on chip 0 */
 452     pnv->isa_bus = pnv_isa_create(pnv->chips[0]);
 453
 454     /* Create serial port */
 455     serial_hds_isa_init(pnv->isa_bus, 0, MAX_SERIAL_PORTS);
 456
 457     /* Create an RTC ISA device too */
 458     rtc_init(pnv->isa_bus, 2000, NULL);
 459 }
 460
 461 /*
 462  *    0:21  Reserved - Read as zeros
 463  *   22:24  Chip ID
 464  *   25:28  Core number
 465  *   29:31  Thread ID
 466  */
 467 static uint32_t pnv_chip_core_pir_p8(PnvChip *chip, uint32_t core_id)
 468 {
 469     return (chip->chip_id << 7) | (core_id << 3);
 470 }
 471
 472 /*
 473  *    0:48  Reserved - Read as zeroes
 474  *   49:52  Node ID
 475  *   53:55  Chip ID
 476  *   56     Reserved - Read as zero
 477  *   57:61  Core number
 478  *   62:63  Thread ID
 479  *
 480  * We only care about the lower bits. uint32_t is fine for the moment.
 481  */
 482 static uint32_t pnv_chip_core_pir_p9(PnvChip *chip, uint32_t core_id)
 483 {
 484     return (chip->chip_id << 8) | (core_id << 2);
 485 }
 486
 487 /* Allowed core identifiers on a POWER8 Processor Chip :
 488  *
 489  * <EX0 reserved>
 490  *  EX1  - Venice only
 491  *  EX2  - Venice only
 492  *  EX3  - Venice only
 493  *  EX4
 494  *  EX5
 495  *  EX6
 496  * <EX7,8 reserved> <reserved>
 497  *  EX9  - Venice only
 498  *  EX10 - Venice only
 499  *  EX11 - Venice only
 500  *  EX12
 501  *  EX13
 502  *  EX14
 503  * <EX15 reserved>
 504  */
 505 #define POWER8E_CORE_MASK  (0x7070ull)
 506 #define POWER8_CORE_MASK   (0x7e7eull)
 507
 508 /*
 509  * POWER9 has 24 cores, ids starting at 0x20
 510  */
 511 #define POWER9_CORE_MASK   (0xffffff00000000ull)
 512
 513 static void pnv_chip_power8e_class_init(ObjectClass *klass, void *data)
 514 {
 515     DeviceClass *dc = DEVICE_CLASS(klass);
 516     PnvChipClass *k = PNV_CHIP_CLASS(klass);
 517
 518     k->cpu_model = "POWER8E";
 519     k->chip_type = PNV_CHIP_POWER8E;
 520     k->chip_cfam_id = 0x221ef04980000000ull;  /* P8 Murano DD2.1 */
 521     k->cores_mask = POWER8E_CORE_MASK;
 522     k->core_pir = pnv_chip_core_pir_p8;
 523     k->xscom_base = 0x003fc0000000000ull;
 524     k->xscom_core_base = 0x10000000ull;
 525     dc->desc = "PowerNV Chip POWER8E";
 526 }
 527
 528 static const TypeInfo pnv_chip_power8e_info = {
 529     .name          = TYPE_PNV_CHIP_POWER8E,
 530     .parent        = TYPE_PNV_CHIP,
 531     .instance_size = sizeof(PnvChip),
 532     .class_init    = pnv_chip_power8e_class_init,
 533 };
 534
 535 static void pnv_chip_power8_class_init(ObjectClass *klass, void *data)
 536 {
 537     DeviceClass *dc = DEVICE_CLASS(klass);
 538     PnvChipClass *k = PNV_CHIP_CLASS(klass);
 539
 540     k->cpu_model = "POWER8";
 541     k->chip_type = PNV_CHIP_POWER8;
 542     k->chip_cfam_id = 0x220ea04980000000ull; /* P8 Venice DD2.0 */
 543     k->cores_mask = POWER8_CORE_MASK;
 544     k->core_pir = pnv_chip_core_pir_p8;
 545     k->xscom_base = 0x003fc0000000000ull;
 546     k->xscom_core_base = 0x10000000ull;
 547     dc->desc = "PowerNV Chip POWER8";
 548 }
 549
 550 static const TypeInfo pnv_chip_power8_info = {
 551     .name          = TYPE_PNV_CHIP_POWER8,
 552     .parent        = TYPE_PNV_CHIP,
 553     .instance_size = sizeof(PnvChip),
 554     .class_init    = pnv_chip_power8_class_init,
 555 };
 556
 557 static void pnv_chip_power8nvl_class_init(ObjectClass *klass, void *data)
 558 {
 559     DeviceClass *dc = DEVICE_CLASS(klass);
 560     PnvChipClass *k = PNV_CHIP_CLASS(klass);
 561
 562     k->cpu_model = "POWER8NVL";
 563     k->chip_type = PNV_CHIP_POWER8NVL;
 564     k->chip_cfam_id = 0x120d304980000000ull;  /* P8 Naples DD1.0 */
 565     k->cores_mask = POWER8_CORE_MASK;
 566     k->core_pir = pnv_chip_core_pir_p8;
 567     k->xscom_base = 0x003fc0000000000ull;
 568     k->xscom_core_base = 0x10000000ull;
 569     dc->desc = "PowerNV Chip POWER8NVL";
 570 }
 571
 572 static const TypeInfo pnv_chip_power8nvl_info = {
 573     .name          = TYPE_PNV_CHIP_POWER8NVL,
 574     .parent        = TYPE_PNV_CHIP,
 575     .instance_size = sizeof(PnvChip),
 576     .class_init    = pnv_chip_power8nvl_class_init,
 577 };
 578
 579 static void pnv_chip_power9_class_init(ObjectClass *klass, void *data)
 580 {
 581     DeviceClass *dc = DEVICE_CLASS(klass);
 582     PnvChipClass *k = PNV_CHIP_CLASS(klass);
 583
 584     k->cpu_model = "POWER9";
 585     k->chip_type = PNV_CHIP_POWER9;
 586     k->chip_cfam_id = 0x100d104980000000ull; /* P9 Nimbus DD1.0 */
 587     k->cores_mask = POWER9_CORE_MASK;
 588     k->core_pir = pnv_chip_core_pir_p9;
 589     k->xscom_base = 0x00603fc00000000ull;
 590     k->xscom_core_base = 0x0ull;
 591     dc->desc = "PowerNV Chip POWER9";
 592 }
 593
 594 static const TypeInfo pnv_chip_power9_info = {
 595     .name          = TYPE_PNV_CHIP_POWER9,
 596     .parent        = TYPE_PNV_CHIP,
 597     .instance_size = sizeof(PnvChip),
 598     .class_init    = pnv_chip_power9_class_init,
 599 };
 600
 601 static void pnv_chip_core_sanitize(PnvChip *chip, Error **errp)
 602 {
 603     PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip);
 604     int cores_max;
 605
 606     /*
 607      * No custom mask for this chip, let's use the default one from *
 608      * the chip class
 609      */
 610     if (!chip->cores_mask) {
 611         chip->cores_mask = pcc->cores_mask;
 612     }
 613
 614     /* filter alien core ids ! some are reserved */
 615     if ((chip->cores_mask & pcc->cores_mask) != chip->cores_mask) {
 616         error_setg(errp, "warning: invalid core mask for chip Ox%"PRIx64" !",
 617                    chip->cores_mask);
 618         return;
 619     }
 620     chip->cores_mask &= pcc->cores_mask;
 621
 622     /* now that we have a sane layout, let check the number of cores */
 623     cores_max = ctpop64(chip->cores_mask);
 624     if (chip->nr_cores > cores_max) {
 625         error_setg(errp, "warning: too many cores for chip ! Limit is %d",
 626                    cores_max);
 627         return;
 628     }
 629 }
 630
 631 static void pnv_chip_init(Object *obj)
 632 {
 633     PnvChip *chip = PNV_CHIP(obj);
 634     PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip);
 635
 636     chip->xscom_base = pcc->xscom_base;
 637
 638     object_initialize(&chip->lpc, sizeof(chip->lpc), TYPE_PNV_LPC);
 639     object_property_add_child(obj, "lpc", OBJECT(&chip->lpc), NULL);
 640 }
 641
 642 static void pnv_chip_realize(DeviceState *dev, Error **errp)
 643 {
 644     PnvChip *chip = PNV_CHIP(dev);
 645     Error *error = NULL;
 646     PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip);
 647     char *typename = pnv_core_typename(pcc->cpu_model);
 648     size_t typesize = object_type_get_instance_size(typename);
 649     int i, core_hwid;
 650
 651     if (!object_class_by_name(typename)) {
 652         error_setg(errp, "Unable to find PowerNV CPU Core '%s'", typename);
 653         return;
 654     }
 655
 656     /* XSCOM bridge */
 657     pnv_xscom_realize(chip, &error);
 658     if (error) {
 659         error_propagate(errp, error);
 660         return;
 661     }
 662     sysbus_mmio_map(SYS_BUS_DEVICE(chip), 0, PNV_XSCOM_BASE(chip));
 663
 664     /* Cores */
 665     pnv_chip_core_sanitize(chip, &error);
 666     if (error) {
 667         error_propagate(errp, error);
 668         return;
 669     }
 670
 671     chip->cores = g_malloc0(typesize * chip->nr_cores);
 672
 673     for (i = 0, core_hwid = 0; (core_hwid < sizeof(chip->cores_mask) * 8)
 674              && (i < chip->nr_cores); core_hwid++) {
 675         char core_name[32];
 676         void *pnv_core = chip->cores + i * typesize;
 677
 678         if (!(chip->cores_mask & (1ull << core_hwid))) {
 679             continue;
 680         }
 681
 682         object_initialize(pnv_core, typesize, typename);
 683         snprintf(core_name, sizeof(core_name), "core[%d]", core_hwid);
 684         object_property_add_child(OBJECT(chip), core_name, OBJECT(pnv_core),
 685                                   &error_fatal);
 686         object_property_set_int(OBJECT(pnv_core), smp_threads, "nr-threads",
 687                                 &error_fatal);
 688         object_property_set_int(OBJECT(pnv_core), core_hwid,
 689                                 CPU_CORE_PROP_CORE_ID, &error_fatal);
 690         object_property_set_int(OBJECT(pnv_core),
 691                                 pcc->core_pir(chip, core_hwid),
 692                                 "pir", &error_fatal);
 693         object_property_set_bool(OBJECT(pnv_core), true, "realized",
 694                                  &error_fatal);
 695         object_unref(OBJECT(pnv_core));
 696
 697         /* Each core has an XSCOM MMIO region */
 698         pnv_xscom_add_subregion(chip,
 699                                 PNV_XSCOM_EX_CORE_BASE(pcc->xscom_core_base,
 700                                                        core_hwid),
 701                                 &PNV_CORE(pnv_core)->xscom_regs);
 702         i++;
 703     }
 704     g_free(typename);
 705
 706     /* Create LPC controller */
 707     object_property_set_bool(OBJECT(&chip->lpc), true, "realized",
 708                              &error_fatal);
 709     pnv_xscom_add_subregion(chip, PNV_XSCOM_LPC_BASE, &chip->lpc.xscom_regs);
 710 }
 711
 712 static Property pnv_chip_properties[] = {
 713     DEFINE_PROP_UINT32("chip-id", PnvChip, chip_id, 0),
 714     DEFINE_PROP_UINT64("ram-start", PnvChip, ram_start, 0),
 715     DEFINE_PROP_UINT64("ram-size", PnvChip, ram_size, 0),
 716     DEFINE_PROP_UINT32("nr-cores", PnvChip, nr_cores, 1),
 717     DEFINE_PROP_UINT64("cores-mask", PnvChip, cores_mask, 0x0),
 718     DEFINE_PROP_END_OF_LIST(),
 719 };
 720
 721 static void pnv_chip_class_init(ObjectClass *klass, void *data)
 722 {
 723     DeviceClass *dc = DEVICE_CLASS(klass);
 724
 725     dc->realize = pnv_chip_realize;
 726     dc->props = pnv_chip_properties;
 727     dc->desc = "PowerNV Chip";
 728 }
 729
 730 static const TypeInfo pnv_chip_info = {
 731     .name          = TYPE_PNV_CHIP,
 732     .parent        = TYPE_SYS_BUS_DEVICE,
 733     .class_init    = pnv_chip_class_init,
 734     .instance_init = pnv_chip_init,
 735     .class_size    = sizeof(PnvChipClass),
 736     .abstract      = true,
 737 };
 738
 739 static void pnv_get_num_chips(Object *obj, Visitor *v, const char *name,
 740                               void *opaque, Error **errp)
 741 {
 742     visit_type_uint32(v, name, &POWERNV_MACHINE(obj)->num_chips, errp);
 743 }
 744
 745 static void pnv_set_num_chips(Object *obj, Visitor *v, const char *name,
 746                               void *opaque, Error **errp)
 747 {
 748     PnvMachineState *pnv = POWERNV_MACHINE(obj);
 749     uint32_t num_chips;
 750     Error *local_err = NULL;
 751
 752     visit_type_uint32(v, name, &num_chips, &local_err);
 753     if (local_err) {
 754         error_propagate(errp, local_err);
 755         return;
 756     }
 757
 758     /*
 759      * TODO: should we decide on how many chips we can create based
 760      * on #cores and Venice vs. Murano vs. Naples chip type etc...,
 761      */
 762     if (!is_power_of_2(num_chips) || num_chips > 4) {
 763         error_setg(errp, "invalid number of chips: '%d'", num_chips);
 764         return;
 765     }
 766
 767     pnv->num_chips = num_chips;
 768 }
 769
 770 static void powernv_machine_initfn(Object *obj)
 771 {
 772     PnvMachineState *pnv = POWERNV_MACHINE(obj);
 773     pnv->num_chips = 1;
 774 }
 775
 776 static void powernv_machine_class_props_init(ObjectClass *oc)
 777 {
 778     object_class_property_add(oc, "num-chips", "uint32_t",
 779                               pnv_get_num_chips, pnv_set_num_chips,
 780                               NULL, NULL, NULL);
 781     object_class_property_set_description(oc, "num-chips",
 782                               "Specifies the number of processor chips",
 783                               NULL);
 784 }
 785
 786 static void powernv_machine_class_init(ObjectClass *oc, void *data)
 787 {
 788     MachineClass *mc = MACHINE_CLASS(oc);
 789
 790     mc->desc = "IBM PowerNV (Non-Virtualized)";
 791     mc->init = ppc_powernv_init;
 792     mc->reset = ppc_powernv_reset;
 793     mc->max_cpus = MAX_CPUS;
 794     mc->block_default_type = IF_IDE; /* Pnv provides a AHCI device for
 795                                       * storage */
 796     mc->no_parallel = 1;
 797     mc->default_boot_order = NULL;
 798     mc->default_ram_size = 1 * G_BYTE;
 799
 800     powernv_machine_class_props_init(oc);
 801 }
 802
 803 static const TypeInfo powernv_machine_info = {
 804     .name          = TYPE_POWERNV_MACHINE,
 805     .parent        = TYPE_MACHINE,
 806     .instance_size = sizeof(PnvMachineState),
 807     .instance_init = powernv_machine_initfn,
 808     .class_init    = powernv_machine_class_init,
 809 };
 810
 811 static void powernv_machine_register_types(void)
 812 {
 813     type_register_static(&powernv_machine_info);
 814     type_register_static(&pnv_chip_info);
 815     type_register_static(&pnv_chip_power8e_info);
 816     type_register_static(&pnv_chip_power8_info);
 817     type_register_static(&pnv_chip_power8nvl_info);
 818     type_register_static(&pnv_chip_power9_info);
 819 }
 820
 821 type_init(powernv_machine_register_types)