1 /* 2 * QEMU PowerPC e500-based platforms 3 * 4 * Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved. 5 * 6 * Author: Yu Liu, <yu.liu@freescale.com> 7 * 8 * This file is derived from hw/ppc440_bamboo.c, 9 * the copyright for that material belongs to the original owners. 10 * 11 * This is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 */ 16 17 #include "qemu/osdep.h" 18 #include "qapi/error.h" 19 #include "e500.h" 20 #include "e500-ccsr.h" 21 #include "net/net.h" 22 #include "qemu/config-file.h" 23 #include "hw/hw.h" 24 #include "hw/char/serial.h" 25 #include "hw/pci/pci.h" 26 #include "hw/boards.h" 27 #include "sysemu/sysemu.h" 28 #include "sysemu/kvm.h" 29 #include "kvm_ppc.h" 30 #include "sysemu/device_tree.h" 31 #include "hw/ppc/openpic.h" 32 #include "hw/ppc/openpic_kvm.h" 33 #include "hw/ppc/ppc.h" 34 #include "hw/loader.h" 35 #include "elf.h" 36 #include "hw/sysbus.h" 37 #include "exec/address-spaces.h" 38 #include "qemu/host-utils.h" 39 #include "qemu/option.h" 40 #include "hw/pci-host/ppce500.h" 41 #include "qemu/error-report.h" 42 #include "hw/platform-bus.h" 43 #include "hw/net/fsl_etsec/etsec.h" 44 45 #define EPAPR_MAGIC (0x45504150) 46 #define BINARY_DEVICE_TREE_FILE "mpc8544ds.dtb" 47 #define DTC_LOAD_PAD 0x1800000 48 #define DTC_PAD_MASK 0xFFFFF 49 #define DTB_MAX_SIZE (8 * 1024 * 1024) 50 #define INITRD_LOAD_PAD 0x2000000 51 #define INITRD_PAD_MASK 0xFFFFFF 52 53 #define RAM_SIZES_ALIGN (64UL << 20) 54 55 /* TODO: parameterize */ 56 #define MPC8544_CCSRBAR_SIZE 0x00100000ULL 57 #define MPC8544_MPIC_REGS_OFFSET 0x40000ULL 58 #define MPC8544_MSI_REGS_OFFSET 0x41600ULL 59 #define MPC8544_SERIAL0_REGS_OFFSET 0x4500ULL 60 #define MPC8544_SERIAL1_REGS_OFFSET 0x4600ULL 61 #define MPC8544_PCI_REGS_OFFSET 0x8000ULL 62 #define MPC8544_PCI_REGS_SIZE 0x1000ULL 63 #define MPC8544_UTIL_OFFSET 0xe0000ULL 64 #define MPC8XXX_GPIO_OFFSET 0x000FF000ULL 65 #define MPC8XXX_GPIO_IRQ 47 66 67 struct boot_info 68 { 69 uint32_t dt_base; 70 uint32_t dt_size; 71 uint32_t entry; 72 }; 73 74 static uint32_t *pci_map_create(void *fdt, uint32_t mpic, int first_slot, 75 int nr_slots, int *len) 76 { 77 int i = 0; 78 int slot; 79 int pci_irq; 80 int host_irq; 81 int last_slot = first_slot + nr_slots; 82 uint32_t *pci_map; 83 84 *len = nr_slots * 4 * 7 * sizeof(uint32_t); 85 pci_map = g_malloc(*len); 86 87 for (slot = first_slot; slot < last_slot; slot++) { 88 for (pci_irq = 0; pci_irq < 4; pci_irq++) { 89 pci_map[i++] = cpu_to_be32(slot << 11); 90 pci_map[i++] = cpu_to_be32(0x0); 91 pci_map[i++] = cpu_to_be32(0x0); 92 pci_map[i++] = cpu_to_be32(pci_irq + 1); 93 pci_map[i++] = cpu_to_be32(mpic); 94 host_irq = ppce500_pci_map_irq_slot(slot, pci_irq); 95 pci_map[i++] = cpu_to_be32(host_irq + 1); 96 pci_map[i++] = cpu_to_be32(0x1); 97 } 98 } 99 100 assert((i * sizeof(uint32_t)) == *len); 101 102 return pci_map; 103 } 104 105 static void dt_serial_create(void *fdt, unsigned long long offset, 106 const char *soc, const char *mpic, 107 const char *alias, int idx, bool defcon) 108 { 109 char ser[128]; 110 111 snprintf(ser, sizeof(ser), "%s/serial@%llx", soc, offset); 112 qemu_fdt_add_subnode(fdt, ser); 113 qemu_fdt_setprop_string(fdt, ser, "device_type", "serial"); 114 qemu_fdt_setprop_string(fdt, ser, "compatible", "ns16550"); 115 qemu_fdt_setprop_cells(fdt, ser, "reg", offset, 0x100); 116 qemu_fdt_setprop_cell(fdt, ser, "cell-index", idx); 117 qemu_fdt_setprop_cell(fdt, ser, "clock-frequency", 0); 118 qemu_fdt_setprop_cells(fdt, ser, "interrupts", 42, 2); 119 qemu_fdt_setprop_phandle(fdt, ser, "interrupt-parent", mpic); 120 qemu_fdt_setprop_string(fdt, "/aliases", alias, ser); 121 122 if (defcon) { 123 /* 124 * "linux,stdout-path" and "stdout" properties are deprecated by linux 125 * kernel. New platforms should only use the "stdout-path" property. Set 126 * the new property and continue using older property to remain 127 * compatible with the existing firmware. 128 */ 129 qemu_fdt_setprop_string(fdt, "/chosen", "linux,stdout-path", ser); 130 qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", ser); 131 } 132 } 133 134 static void create_dt_mpc8xxx_gpio(void *fdt, const char *soc, const char *mpic) 135 { 136 hwaddr mmio0 = MPC8XXX_GPIO_OFFSET; 137 int irq0 = MPC8XXX_GPIO_IRQ; 138 gchar *node = g_strdup_printf("%s/gpio@%"PRIx64, soc, mmio0); 139 gchar *poweroff = g_strdup_printf("%s/power-off", soc); 140 int gpio_ph; 141 142 qemu_fdt_add_subnode(fdt, node); 143 qemu_fdt_setprop_string(fdt, node, "compatible", "fsl,qoriq-gpio"); 144 qemu_fdt_setprop_cells(fdt, node, "reg", mmio0, 0x1000); 145 qemu_fdt_setprop_cells(fdt, node, "interrupts", irq0, 0x2); 146 qemu_fdt_setprop_phandle(fdt, node, "interrupt-parent", mpic); 147 qemu_fdt_setprop_cells(fdt, node, "#gpio-cells", 2); 148 qemu_fdt_setprop(fdt, node, "gpio-controller", NULL, 0); 149 gpio_ph = qemu_fdt_alloc_phandle(fdt); 150 qemu_fdt_setprop_cell(fdt, node, "phandle", gpio_ph); 151 qemu_fdt_setprop_cell(fdt, node, "linux,phandle", gpio_ph); 152 153 /* Power Off Pin */ 154 qemu_fdt_add_subnode(fdt, poweroff); 155 qemu_fdt_setprop_string(fdt, poweroff, "compatible", "gpio-poweroff"); 156 qemu_fdt_setprop_cells(fdt, poweroff, "gpios", gpio_ph, 0, 0); 157 158 g_free(node); 159 g_free(poweroff); 160 } 161 162 typedef struct PlatformDevtreeData { 163 void *fdt; 164 const char *mpic; 165 int irq_start; 166 const char *node; 167 PlatformBusDevice *pbus; 168 } PlatformDevtreeData; 169 170 static int create_devtree_etsec(SysBusDevice *sbdev, PlatformDevtreeData *data) 171 { 172 eTSEC *etsec = ETSEC_COMMON(sbdev); 173 PlatformBusDevice *pbus = data->pbus; 174 hwaddr mmio0 = platform_bus_get_mmio_addr(pbus, sbdev, 0); 175 int irq0 = platform_bus_get_irqn(pbus, sbdev, 0); 176 int irq1 = platform_bus_get_irqn(pbus, sbdev, 1); 177 int irq2 = platform_bus_get_irqn(pbus, sbdev, 2); 178 gchar *node = g_strdup_printf("/platform/ethernet@%"PRIx64, mmio0); 179 gchar *group = g_strdup_printf("%s/queue-group", node); 180 void *fdt = data->fdt; 181 182 assert((int64_t)mmio0 >= 0); 183 assert(irq0 >= 0); 184 assert(irq1 >= 0); 185 assert(irq2 >= 0); 186 187 qemu_fdt_add_subnode(fdt, node); 188 qemu_fdt_setprop_string(fdt, node, "device_type", "network"); 189 qemu_fdt_setprop_string(fdt, node, "compatible", "fsl,etsec2"); 190 qemu_fdt_setprop_string(fdt, node, "model", "eTSEC"); 191 qemu_fdt_setprop(fdt, node, "local-mac-address", etsec->conf.macaddr.a, 6); 192 qemu_fdt_setprop_cells(fdt, node, "fixed-link", 0, 1, 1000, 0, 0); 193 194 qemu_fdt_add_subnode(fdt, group); 195 qemu_fdt_setprop_cells(fdt, group, "reg", mmio0, 0x1000); 196 qemu_fdt_setprop_cells(fdt, group, "interrupts", 197 data->irq_start + irq0, 0x2, 198 data->irq_start + irq1, 0x2, 199 data->irq_start + irq2, 0x2); 200 201 g_free(node); 202 g_free(group); 203 204 return 0; 205 } 206 207 static void sysbus_device_create_devtree(SysBusDevice *sbdev, void *opaque) 208 { 209 PlatformDevtreeData *data = opaque; 210 bool matched = false; 211 212 if (object_dynamic_cast(OBJECT(sbdev), TYPE_ETSEC_COMMON)) { 213 create_devtree_etsec(sbdev, data); 214 matched = true; 215 } 216 217 if (!matched) { 218 error_report("Device %s is not supported by this machine yet.", 219 qdev_fw_name(DEVICE(sbdev))); 220 exit(1); 221 } 222 } 223 224 static void platform_bus_create_devtree(PPCE500Params *params, void *fdt, 225 const char *mpic) 226 { 227 gchar *node = g_strdup_printf("/platform@%"PRIx64, params->platform_bus_base); 228 const char platcomp[] = "qemu,platform\0simple-bus"; 229 uint64_t addr = params->platform_bus_base; 230 uint64_t size = params->platform_bus_size; 231 int irq_start = params->platform_bus_first_irq; 232 PlatformBusDevice *pbus; 233 DeviceState *dev; 234 235 /* Create a /platform node that we can put all devices into */ 236 237 qemu_fdt_add_subnode(fdt, node); 238 qemu_fdt_setprop(fdt, node, "compatible", platcomp, sizeof(platcomp)); 239 240 /* Our platform bus region is less than 32bit big, so 1 cell is enough for 241 address and size */ 242 qemu_fdt_setprop_cells(fdt, node, "#size-cells", 1); 243 qemu_fdt_setprop_cells(fdt, node, "#address-cells", 1); 244 qemu_fdt_setprop_cells(fdt, node, "ranges", 0, addr >> 32, addr, size); 245 246 qemu_fdt_setprop_phandle(fdt, node, "interrupt-parent", mpic); 247 248 dev = qdev_find_recursive(sysbus_get_default(), TYPE_PLATFORM_BUS_DEVICE); 249 pbus = PLATFORM_BUS_DEVICE(dev); 250 251 /* We can only create dt nodes for dynamic devices when they're ready */ 252 if (pbus->done_gathering) { 253 PlatformDevtreeData data = { 254 .fdt = fdt, 255 .mpic = mpic, 256 .irq_start = irq_start, 257 .node = node, 258 .pbus = pbus, 259 }; 260 261 /* Loop through all dynamic sysbus devices and create nodes for them */ 262 foreach_dynamic_sysbus_device(sysbus_device_create_devtree, &data); 263 } 264 265 g_free(node); 266 } 267 268 static int ppce500_load_device_tree(MachineState *machine, 269 PPCE500Params *params, 270 hwaddr addr, 271 hwaddr initrd_base, 272 hwaddr initrd_size, 273 hwaddr kernel_base, 274 hwaddr kernel_size, 275 bool dry_run) 276 { 277 CPUPPCState *env = first_cpu->env_ptr; 278 int ret = -1; 279 uint64_t mem_reg_property[] = { 0, cpu_to_be64(machine->ram_size) }; 280 int fdt_size; 281 void *fdt; 282 uint8_t hypercall[16]; 283 uint32_t clock_freq = 400000000; 284 uint32_t tb_freq = 400000000; 285 int i; 286 char compatible_sb[] = "fsl,mpc8544-immr\0simple-bus"; 287 char soc[128]; 288 char mpic[128]; 289 uint32_t mpic_ph; 290 uint32_t msi_ph; 291 char gutil[128]; 292 char pci[128]; 293 char msi[128]; 294 uint32_t *pci_map = NULL; 295 int len; 296 uint32_t pci_ranges[14] = 297 { 298 0x2000000, 0x0, params->pci_mmio_bus_base, 299 params->pci_mmio_base >> 32, params->pci_mmio_base, 300 0x0, 0x20000000, 301 302 0x1000000, 0x0, 0x0, 303 params->pci_pio_base >> 32, params->pci_pio_base, 304 0x0, 0x10000, 305 }; 306 QemuOpts *machine_opts = qemu_get_machine_opts(); 307 const char *dtb_file = qemu_opt_get(machine_opts, "dtb"); 308 const char *toplevel_compat = qemu_opt_get(machine_opts, "dt_compatible"); 309 310 if (dtb_file) { 311 char *filename; 312 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, dtb_file); 313 if (!filename) { 314 goto out; 315 } 316 317 fdt = load_device_tree(filename, &fdt_size); 318 g_free(filename); 319 if (!fdt) { 320 goto out; 321 } 322 goto done; 323 } 324 325 fdt = create_device_tree(&fdt_size); 326 if (fdt == NULL) { 327 goto out; 328 } 329 330 /* Manipulate device tree in memory. */ 331 qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 2); 332 qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 2); 333 334 qemu_fdt_add_subnode(fdt, "/memory"); 335 qemu_fdt_setprop_string(fdt, "/memory", "device_type", "memory"); 336 qemu_fdt_setprop(fdt, "/memory", "reg", mem_reg_property, 337 sizeof(mem_reg_property)); 338 339 qemu_fdt_add_subnode(fdt, "/chosen"); 340 if (initrd_size) { 341 ret = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start", 342 initrd_base); 343 if (ret < 0) { 344 fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n"); 345 } 346 347 ret = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end", 348 (initrd_base + initrd_size)); 349 if (ret < 0) { 350 fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n"); 351 } 352 353 } 354 355 if (kernel_base != -1ULL) { 356 qemu_fdt_setprop_cells(fdt, "/chosen", "qemu,boot-kernel", 357 kernel_base >> 32, kernel_base, 358 kernel_size >> 32, kernel_size); 359 } 360 361 ret = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", 362 machine->kernel_cmdline); 363 if (ret < 0) 364 fprintf(stderr, "couldn't set /chosen/bootargs\n"); 365 366 if (kvm_enabled()) { 367 /* Read out host's frequencies */ 368 clock_freq = kvmppc_get_clockfreq(); 369 tb_freq = kvmppc_get_tbfreq(); 370 371 /* indicate KVM hypercall interface */ 372 qemu_fdt_add_subnode(fdt, "/hypervisor"); 373 qemu_fdt_setprop_string(fdt, "/hypervisor", "compatible", 374 "linux,kvm"); 375 kvmppc_get_hypercall(env, hypercall, sizeof(hypercall)); 376 qemu_fdt_setprop(fdt, "/hypervisor", "hcall-instructions", 377 hypercall, sizeof(hypercall)); 378 /* if KVM supports the idle hcall, set property indicating this */ 379 if (kvmppc_get_hasidle(env)) { 380 qemu_fdt_setprop(fdt, "/hypervisor", "has-idle", NULL, 0); 381 } 382 } 383 384 /* Create CPU nodes */ 385 qemu_fdt_add_subnode(fdt, "/cpus"); 386 qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 1); 387 qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0); 388 389 /* We need to generate the cpu nodes in reverse order, so Linux can pick 390 the first node as boot node and be happy */ 391 for (i = smp_cpus - 1; i >= 0; i--) { 392 CPUState *cpu; 393 char cpu_name[128]; 394 uint64_t cpu_release_addr = params->spin_base + (i * 0x20); 395 396 cpu = qemu_get_cpu(i); 397 if (cpu == NULL) { 398 continue; 399 } 400 env = cpu->env_ptr; 401 402 snprintf(cpu_name, sizeof(cpu_name), "/cpus/PowerPC,8544@%x", i); 403 qemu_fdt_add_subnode(fdt, cpu_name); 404 qemu_fdt_setprop_cell(fdt, cpu_name, "clock-frequency", clock_freq); 405 qemu_fdt_setprop_cell(fdt, cpu_name, "timebase-frequency", tb_freq); 406 qemu_fdt_setprop_string(fdt, cpu_name, "device_type", "cpu"); 407 qemu_fdt_setprop_cell(fdt, cpu_name, "reg", i); 408 qemu_fdt_setprop_cell(fdt, cpu_name, "d-cache-line-size", 409 env->dcache_line_size); 410 qemu_fdt_setprop_cell(fdt, cpu_name, "i-cache-line-size", 411 env->icache_line_size); 412 qemu_fdt_setprop_cell(fdt, cpu_name, "d-cache-size", 0x8000); 413 qemu_fdt_setprop_cell(fdt, cpu_name, "i-cache-size", 0x8000); 414 qemu_fdt_setprop_cell(fdt, cpu_name, "bus-frequency", 0); 415 if (cpu->cpu_index) { 416 qemu_fdt_setprop_string(fdt, cpu_name, "status", "disabled"); 417 qemu_fdt_setprop_string(fdt, cpu_name, "enable-method", 418 "spin-table"); 419 qemu_fdt_setprop_u64(fdt, cpu_name, "cpu-release-addr", 420 cpu_release_addr); 421 } else { 422 qemu_fdt_setprop_string(fdt, cpu_name, "status", "okay"); 423 } 424 } 425 426 qemu_fdt_add_subnode(fdt, "/aliases"); 427 /* XXX These should go into their respective devices' code */ 428 snprintf(soc, sizeof(soc), "/soc@%"PRIx64, params->ccsrbar_base); 429 qemu_fdt_add_subnode(fdt, soc); 430 qemu_fdt_setprop_string(fdt, soc, "device_type", "soc"); 431 qemu_fdt_setprop(fdt, soc, "compatible", compatible_sb, 432 sizeof(compatible_sb)); 433 qemu_fdt_setprop_cell(fdt, soc, "#address-cells", 1); 434 qemu_fdt_setprop_cell(fdt, soc, "#size-cells", 1); 435 qemu_fdt_setprop_cells(fdt, soc, "ranges", 0x0, 436 params->ccsrbar_base >> 32, params->ccsrbar_base, 437 MPC8544_CCSRBAR_SIZE); 438 /* XXX should contain a reasonable value */ 439 qemu_fdt_setprop_cell(fdt, soc, "bus-frequency", 0); 440 441 snprintf(mpic, sizeof(mpic), "%s/pic@%llx", soc, MPC8544_MPIC_REGS_OFFSET); 442 qemu_fdt_add_subnode(fdt, mpic); 443 qemu_fdt_setprop_string(fdt, mpic, "device_type", "open-pic"); 444 qemu_fdt_setprop_string(fdt, mpic, "compatible", "fsl,mpic"); 445 qemu_fdt_setprop_cells(fdt, mpic, "reg", MPC8544_MPIC_REGS_OFFSET, 446 0x40000); 447 qemu_fdt_setprop_cell(fdt, mpic, "#address-cells", 0); 448 qemu_fdt_setprop_cell(fdt, mpic, "#interrupt-cells", 2); 449 mpic_ph = qemu_fdt_alloc_phandle(fdt); 450 qemu_fdt_setprop_cell(fdt, mpic, "phandle", mpic_ph); 451 qemu_fdt_setprop_cell(fdt, mpic, "linux,phandle", mpic_ph); 452 qemu_fdt_setprop(fdt, mpic, "interrupt-controller", NULL, 0); 453 454 /* 455 * We have to generate ser1 first, because Linux takes the first 456 * device it finds in the dt as serial output device. And we generate 457 * devices in reverse order to the dt. 458 */ 459 if (serial_hds[1]) { 460 dt_serial_create(fdt, MPC8544_SERIAL1_REGS_OFFSET, 461 soc, mpic, "serial1", 1, false); 462 } 463 464 if (serial_hds[0]) { 465 dt_serial_create(fdt, MPC8544_SERIAL0_REGS_OFFSET, 466 soc, mpic, "serial0", 0, true); 467 } 468 469 snprintf(gutil, sizeof(gutil), "%s/global-utilities@%llx", soc, 470 MPC8544_UTIL_OFFSET); 471 qemu_fdt_add_subnode(fdt, gutil); 472 qemu_fdt_setprop_string(fdt, gutil, "compatible", "fsl,mpc8544-guts"); 473 qemu_fdt_setprop_cells(fdt, gutil, "reg", MPC8544_UTIL_OFFSET, 0x1000); 474 qemu_fdt_setprop(fdt, gutil, "fsl,has-rstcr", NULL, 0); 475 476 snprintf(msi, sizeof(msi), "/%s/msi@%llx", soc, MPC8544_MSI_REGS_OFFSET); 477 qemu_fdt_add_subnode(fdt, msi); 478 qemu_fdt_setprop_string(fdt, msi, "compatible", "fsl,mpic-msi"); 479 qemu_fdt_setprop_cells(fdt, msi, "reg", MPC8544_MSI_REGS_OFFSET, 0x200); 480 msi_ph = qemu_fdt_alloc_phandle(fdt); 481 qemu_fdt_setprop_cells(fdt, msi, "msi-available-ranges", 0x0, 0x100); 482 qemu_fdt_setprop_phandle(fdt, msi, "interrupt-parent", mpic); 483 qemu_fdt_setprop_cells(fdt, msi, "interrupts", 484 0xe0, 0x0, 485 0xe1, 0x0, 486 0xe2, 0x0, 487 0xe3, 0x0, 488 0xe4, 0x0, 489 0xe5, 0x0, 490 0xe6, 0x0, 491 0xe7, 0x0); 492 qemu_fdt_setprop_cell(fdt, msi, "phandle", msi_ph); 493 qemu_fdt_setprop_cell(fdt, msi, "linux,phandle", msi_ph); 494 495 snprintf(pci, sizeof(pci), "/pci@%llx", 496 params->ccsrbar_base + MPC8544_PCI_REGS_OFFSET); 497 qemu_fdt_add_subnode(fdt, pci); 498 qemu_fdt_setprop_cell(fdt, pci, "cell-index", 0); 499 qemu_fdt_setprop_string(fdt, pci, "compatible", "fsl,mpc8540-pci"); 500 qemu_fdt_setprop_string(fdt, pci, "device_type", "pci"); 501 qemu_fdt_setprop_cells(fdt, pci, "interrupt-map-mask", 0xf800, 0x0, 502 0x0, 0x7); 503 pci_map = pci_map_create(fdt, qemu_fdt_get_phandle(fdt, mpic), 504 params->pci_first_slot, params->pci_nr_slots, 505 &len); 506 qemu_fdt_setprop(fdt, pci, "interrupt-map", pci_map, len); 507 qemu_fdt_setprop_phandle(fdt, pci, "interrupt-parent", mpic); 508 qemu_fdt_setprop_cells(fdt, pci, "interrupts", 24, 2); 509 qemu_fdt_setprop_cells(fdt, pci, "bus-range", 0, 255); 510 for (i = 0; i < 14; i++) { 511 pci_ranges[i] = cpu_to_be32(pci_ranges[i]); 512 } 513 qemu_fdt_setprop_cell(fdt, pci, "fsl,msi", msi_ph); 514 qemu_fdt_setprop(fdt, pci, "ranges", pci_ranges, sizeof(pci_ranges)); 515 qemu_fdt_setprop_cells(fdt, pci, "reg", 516 (params->ccsrbar_base + MPC8544_PCI_REGS_OFFSET) >> 32, 517 (params->ccsrbar_base + MPC8544_PCI_REGS_OFFSET), 518 0, 0x1000); 519 qemu_fdt_setprop_cell(fdt, pci, "clock-frequency", 66666666); 520 qemu_fdt_setprop_cell(fdt, pci, "#interrupt-cells", 1); 521 qemu_fdt_setprop_cell(fdt, pci, "#size-cells", 2); 522 qemu_fdt_setprop_cell(fdt, pci, "#address-cells", 3); 523 qemu_fdt_setprop_string(fdt, "/aliases", "pci0", pci); 524 525 if (params->has_mpc8xxx_gpio) { 526 create_dt_mpc8xxx_gpio(fdt, soc, mpic); 527 } 528 529 if (params->has_platform_bus) { 530 platform_bus_create_devtree(params, fdt, mpic); 531 } 532 533 params->fixup_devtree(params, fdt); 534 535 if (toplevel_compat) { 536 qemu_fdt_setprop(fdt, "/", "compatible", toplevel_compat, 537 strlen(toplevel_compat) + 1); 538 } 539 540 done: 541 if (!dry_run) { 542 qemu_fdt_dumpdtb(fdt, fdt_size); 543 cpu_physical_memory_write(addr, fdt, fdt_size); 544 } 545 ret = fdt_size; 546 547 out: 548 g_free(pci_map); 549 550 return ret; 551 } 552 553 typedef struct DeviceTreeParams { 554 MachineState *machine; 555 PPCE500Params params; 556 hwaddr addr; 557 hwaddr initrd_base; 558 hwaddr initrd_size; 559 hwaddr kernel_base; 560 hwaddr kernel_size; 561 Notifier notifier; 562 } DeviceTreeParams; 563 564 static void ppce500_reset_device_tree(void *opaque) 565 { 566 DeviceTreeParams *p = opaque; 567 ppce500_load_device_tree(p->machine, &p->params, p->addr, p->initrd_base, 568 p->initrd_size, p->kernel_base, p->kernel_size, 569 false); 570 } 571 572 static void ppce500_init_notify(Notifier *notifier, void *data) 573 { 574 DeviceTreeParams *p = container_of(notifier, DeviceTreeParams, notifier); 575 ppce500_reset_device_tree(p); 576 } 577 578 static int ppce500_prep_device_tree(MachineState *machine, 579 PPCE500Params *params, 580 hwaddr addr, 581 hwaddr initrd_base, 582 hwaddr initrd_size, 583 hwaddr kernel_base, 584 hwaddr kernel_size) 585 { 586 DeviceTreeParams *p = g_new(DeviceTreeParams, 1); 587 p->machine = machine; 588 p->params = *params; 589 p->addr = addr; 590 p->initrd_base = initrd_base; 591 p->initrd_size = initrd_size; 592 p->kernel_base = kernel_base; 593 p->kernel_size = kernel_size; 594 595 qemu_register_reset(ppce500_reset_device_tree, p); 596 p->notifier.notify = ppce500_init_notify; 597 qemu_add_machine_init_done_notifier(&p->notifier); 598 599 /* Issue the device tree loader once, so that we get the size of the blob */ 600 return ppce500_load_device_tree(machine, params, addr, initrd_base, 601 initrd_size, kernel_base, kernel_size, 602 true); 603 } 604 605 /* Create -kernel TLB entries for BookE. */ 606 hwaddr booke206_page_size_to_tlb(uint64_t size) 607 { 608 return 63 - clz64(size >> 10); 609 } 610 611 static int booke206_initial_map_tsize(CPUPPCState *env) 612 { 613 struct boot_info *bi = env->load_info; 614 hwaddr dt_end; 615 int ps; 616 617 /* Our initial TLB entry needs to cover everything from 0 to 618 the device tree top */ 619 dt_end = bi->dt_base + bi->dt_size; 620 ps = booke206_page_size_to_tlb(dt_end) + 1; 621 if (ps & 1) { 622 /* e500v2 can only do even TLB size bits */ 623 ps++; 624 } 625 return ps; 626 } 627 628 static uint64_t mmubooke_initial_mapsize(CPUPPCState *env) 629 { 630 int tsize; 631 632 tsize = booke206_initial_map_tsize(env); 633 return (1ULL << 10 << tsize); 634 } 635 636 static void mmubooke_create_initial_mapping(CPUPPCState *env) 637 { 638 ppcmas_tlb_t *tlb = booke206_get_tlbm(env, 1, 0, 0); 639 hwaddr size; 640 int ps; 641 642 ps = booke206_initial_map_tsize(env); 643 size = (ps << MAS1_TSIZE_SHIFT); 644 tlb->mas1 = MAS1_VALID | size; 645 tlb->mas2 = 0; 646 tlb->mas7_3 = 0; 647 tlb->mas7_3 |= MAS3_UR | MAS3_UW | MAS3_UX | MAS3_SR | MAS3_SW | MAS3_SX; 648 649 env->tlb_dirty = true; 650 } 651 652 static void ppce500_cpu_reset_sec(void *opaque) 653 { 654 PowerPCCPU *cpu = opaque; 655 CPUState *cs = CPU(cpu); 656 657 cpu_reset(cs); 658 659 /* Secondary CPU starts in halted state for now. Needs to change when 660 implementing non-kernel boot. */ 661 cs->halted = 1; 662 cs->exception_index = EXCP_HLT; 663 } 664 665 static void ppce500_cpu_reset(void *opaque) 666 { 667 PowerPCCPU *cpu = opaque; 668 CPUState *cs = CPU(cpu); 669 CPUPPCState *env = &cpu->env; 670 struct boot_info *bi = env->load_info; 671 672 cpu_reset(cs); 673 674 /* Set initial guest state. */ 675 cs->halted = 0; 676 env->gpr[1] = (16<<20) - 8; 677 env->gpr[3] = bi->dt_base; 678 env->gpr[4] = 0; 679 env->gpr[5] = 0; 680 env->gpr[6] = EPAPR_MAGIC; 681 env->gpr[7] = mmubooke_initial_mapsize(env); 682 env->gpr[8] = 0; 683 env->gpr[9] = 0; 684 env->nip = bi->entry; 685 mmubooke_create_initial_mapping(env); 686 } 687 688 static DeviceState *ppce500_init_mpic_qemu(PPCE500Params *params, 689 qemu_irq **irqs) 690 { 691 DeviceState *dev; 692 SysBusDevice *s; 693 int i, j, k; 694 695 dev = qdev_create(NULL, TYPE_OPENPIC); 696 object_property_add_child(qdev_get_machine(), "pic", OBJECT(dev), 697 &error_fatal); 698 qdev_prop_set_uint32(dev, "model", params->mpic_version); 699 qdev_prop_set_uint32(dev, "nb_cpus", smp_cpus); 700 701 qdev_init_nofail(dev); 702 s = SYS_BUS_DEVICE(dev); 703 704 k = 0; 705 for (i = 0; i < smp_cpus; i++) { 706 for (j = 0; j < OPENPIC_OUTPUT_NB; j++) { 707 sysbus_connect_irq(s, k++, irqs[i][j]); 708 } 709 } 710 711 return dev; 712 } 713 714 static DeviceState *ppce500_init_mpic_kvm(PPCE500Params *params, 715 qemu_irq **irqs, Error **errp) 716 { 717 Error *err = NULL; 718 DeviceState *dev; 719 CPUState *cs; 720 721 dev = qdev_create(NULL, TYPE_KVM_OPENPIC); 722 qdev_prop_set_uint32(dev, "model", params->mpic_version); 723 724 object_property_set_bool(OBJECT(dev), true, "realized", &err); 725 if (err) { 726 error_propagate(errp, err); 727 object_unparent(OBJECT(dev)); 728 return NULL; 729 } 730 731 CPU_FOREACH(cs) { 732 if (kvm_openpic_connect_vcpu(dev, cs)) { 733 fprintf(stderr, "%s: failed to connect vcpu to irqchip\n", 734 __func__); 735 abort(); 736 } 737 } 738 739 return dev; 740 } 741 742 static DeviceState *ppce500_init_mpic(MachineState *machine, 743 PPCE500Params *params, 744 MemoryRegion *ccsr, 745 qemu_irq **irqs) 746 { 747 DeviceState *dev = NULL; 748 SysBusDevice *s; 749 750 if (kvm_enabled()) { 751 Error *err = NULL; 752 753 if (machine_kernel_irqchip_allowed(machine)) { 754 dev = ppce500_init_mpic_kvm(params, irqs, &err); 755 } 756 if (machine_kernel_irqchip_required(machine) && !dev) { 757 error_reportf_err(err, 758 "kernel_irqchip requested but unavailable: "); 759 exit(1); 760 } 761 } 762 763 if (!dev) { 764 dev = ppce500_init_mpic_qemu(params, irqs); 765 } 766 767 s = SYS_BUS_DEVICE(dev); 768 memory_region_add_subregion(ccsr, MPC8544_MPIC_REGS_OFFSET, 769 s->mmio[0].memory); 770 771 return dev; 772 } 773 774 static void ppce500_power_off(void *opaque, int line, int on) 775 { 776 if (on) { 777 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); 778 } 779 } 780 781 void ppce500_init(MachineState *machine, PPCE500Params *params) 782 { 783 MemoryRegion *address_space_mem = get_system_memory(); 784 MemoryRegion *ram = g_new(MemoryRegion, 1); 785 PCIBus *pci_bus; 786 CPUPPCState *env = NULL; 787 uint64_t loadaddr; 788 hwaddr kernel_base = -1LL; 789 int kernel_size = 0; 790 hwaddr dt_base = 0; 791 hwaddr initrd_base = 0; 792 int initrd_size = 0; 793 hwaddr cur_base = 0; 794 char *filename; 795 const char *payload_name; 796 bool kernel_as_payload; 797 hwaddr bios_entry = 0; 798 target_long payload_size; 799 struct boot_info *boot_info; 800 int dt_size; 801 int i; 802 /* irq num for pin INTA, INTB, INTC and INTD is 1, 2, 3 and 803 * 4 respectively */ 804 unsigned int pci_irq_nrs[PCI_NUM_PINS] = {1, 2, 3, 4}; 805 qemu_irq **irqs; 806 DeviceState *dev, *mpicdev; 807 CPUPPCState *firstenv = NULL; 808 MemoryRegion *ccsr_addr_space; 809 SysBusDevice *s; 810 PPCE500CCSRState *ccsr; 811 812 irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *)); 813 irqs[0] = g_malloc0(smp_cpus * sizeof(qemu_irq) * OPENPIC_OUTPUT_NB); 814 for (i = 0; i < smp_cpus; i++) { 815 PowerPCCPU *cpu; 816 CPUState *cs; 817 qemu_irq *input; 818 819 cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); 820 env = &cpu->env; 821 cs = CPU(cpu); 822 823 if (env->mmu_model != POWERPC_MMU_BOOKE206) { 824 error_report("MMU model %i not supported by this machine", 825 env->mmu_model); 826 exit(1); 827 } 828 829 if (!firstenv) { 830 firstenv = env; 831 } 832 833 irqs[i] = irqs[0] + (i * OPENPIC_OUTPUT_NB); 834 input = (qemu_irq *)env->irq_inputs; 835 irqs[i][OPENPIC_OUTPUT_INT] = input[PPCE500_INPUT_INT]; 836 irqs[i][OPENPIC_OUTPUT_CINT] = input[PPCE500_INPUT_CINT]; 837 env->spr_cb[SPR_BOOKE_PIR].default_value = cs->cpu_index = i; 838 env->mpic_iack = params->ccsrbar_base + 839 MPC8544_MPIC_REGS_OFFSET + 0xa0; 840 841 ppc_booke_timers_init(cpu, 400000000, PPC_TIMER_E500); 842 843 /* Register reset handler */ 844 if (!i) { 845 /* Primary CPU */ 846 struct boot_info *boot_info; 847 boot_info = g_malloc0(sizeof(struct boot_info)); 848 qemu_register_reset(ppce500_cpu_reset, cpu); 849 env->load_info = boot_info; 850 } else { 851 /* Secondary CPUs */ 852 qemu_register_reset(ppce500_cpu_reset_sec, cpu); 853 } 854 } 855 856 env = firstenv; 857 858 /* Fixup Memory size on a alignment boundary */ 859 ram_size &= ~(RAM_SIZES_ALIGN - 1); 860 machine->ram_size = ram_size; 861 862 /* Register Memory */ 863 memory_region_allocate_system_memory(ram, NULL, "mpc8544ds.ram", ram_size); 864 memory_region_add_subregion(address_space_mem, 0, ram); 865 866 dev = qdev_create(NULL, "e500-ccsr"); 867 object_property_add_child(qdev_get_machine(), "e500-ccsr", 868 OBJECT(dev), NULL); 869 qdev_init_nofail(dev); 870 ccsr = CCSR(dev); 871 ccsr_addr_space = &ccsr->ccsr_space; 872 memory_region_add_subregion(address_space_mem, params->ccsrbar_base, 873 ccsr_addr_space); 874 875 mpicdev = ppce500_init_mpic(machine, params, ccsr_addr_space, irqs); 876 877 /* Serial */ 878 if (serial_hds[0]) { 879 serial_mm_init(ccsr_addr_space, MPC8544_SERIAL0_REGS_OFFSET, 880 0, qdev_get_gpio_in(mpicdev, 42), 399193, 881 serial_hds[0], DEVICE_BIG_ENDIAN); 882 } 883 884 if (serial_hds[1]) { 885 serial_mm_init(ccsr_addr_space, MPC8544_SERIAL1_REGS_OFFSET, 886 0, qdev_get_gpio_in(mpicdev, 42), 399193, 887 serial_hds[1], DEVICE_BIG_ENDIAN); 888 } 889 890 /* General Utility device */ 891 dev = qdev_create(NULL, "mpc8544-guts"); 892 qdev_init_nofail(dev); 893 s = SYS_BUS_DEVICE(dev); 894 memory_region_add_subregion(ccsr_addr_space, MPC8544_UTIL_OFFSET, 895 sysbus_mmio_get_region(s, 0)); 896 897 /* PCI */ 898 dev = qdev_create(NULL, "e500-pcihost"); 899 object_property_add_child(qdev_get_machine(), "pci-host", OBJECT(dev), 900 &error_abort); 901 qdev_prop_set_uint32(dev, "first_slot", params->pci_first_slot); 902 qdev_prop_set_uint32(dev, "first_pin_irq", pci_irq_nrs[0]); 903 qdev_init_nofail(dev); 904 s = SYS_BUS_DEVICE(dev); 905 for (i = 0; i < PCI_NUM_PINS; i++) { 906 sysbus_connect_irq(s, i, qdev_get_gpio_in(mpicdev, pci_irq_nrs[i])); 907 } 908 909 memory_region_add_subregion(ccsr_addr_space, MPC8544_PCI_REGS_OFFSET, 910 sysbus_mmio_get_region(s, 0)); 911 912 pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci.0"); 913 if (!pci_bus) 914 printf("couldn't create PCI controller!\n"); 915 916 if (pci_bus) { 917 /* Register network interfaces. */ 918 for (i = 0; i < nb_nics; i++) { 919 pci_nic_init_nofail(&nd_table[i], pci_bus, "virtio-net-pci", NULL); 920 } 921 } 922 923 /* Register spinning region */ 924 sysbus_create_simple("e500-spin", params->spin_base, NULL); 925 926 if (params->has_mpc8xxx_gpio) { 927 qemu_irq poweroff_irq; 928 929 dev = qdev_create(NULL, "mpc8xxx_gpio"); 930 s = SYS_BUS_DEVICE(dev); 931 qdev_init_nofail(dev); 932 sysbus_connect_irq(s, 0, qdev_get_gpio_in(mpicdev, MPC8XXX_GPIO_IRQ)); 933 memory_region_add_subregion(ccsr_addr_space, MPC8XXX_GPIO_OFFSET, 934 sysbus_mmio_get_region(s, 0)); 935 936 /* Power Off GPIO at Pin 0 */ 937 poweroff_irq = qemu_allocate_irq(ppce500_power_off, NULL, 0); 938 qdev_connect_gpio_out(dev, 0, poweroff_irq); 939 } 940 941 /* Platform Bus Device */ 942 if (params->has_platform_bus) { 943 dev = qdev_create(NULL, TYPE_PLATFORM_BUS_DEVICE); 944 dev->id = TYPE_PLATFORM_BUS_DEVICE; 945 qdev_prop_set_uint32(dev, "num_irqs", params->platform_bus_num_irqs); 946 qdev_prop_set_uint32(dev, "mmio_size", params->platform_bus_size); 947 qdev_init_nofail(dev); 948 s = SYS_BUS_DEVICE(dev); 949 950 for (i = 0; i < params->platform_bus_num_irqs; i++) { 951 int irqn = params->platform_bus_first_irq + i; 952 sysbus_connect_irq(s, i, qdev_get_gpio_in(mpicdev, irqn)); 953 } 954 955 memory_region_add_subregion(address_space_mem, 956 params->platform_bus_base, 957 sysbus_mmio_get_region(s, 0)); 958 } 959 960 /* 961 * Smart firmware defaults ahead! 962 * 963 * We follow the following table to select which payload we execute. 964 * 965 * -kernel | -bios | payload 966 * ---------+-------+--------- 967 * N | Y | u-boot 968 * N | N | u-boot 969 * Y | Y | u-boot 970 * Y | N | kernel 971 * 972 * This ensures backwards compatibility with how we used to expose 973 * -kernel to users but allows them to run through u-boot as well. 974 */ 975 kernel_as_payload = false; 976 if (bios_name == NULL) { 977 if (machine->kernel_filename) { 978 payload_name = machine->kernel_filename; 979 kernel_as_payload = true; 980 } else { 981 payload_name = "u-boot.e500"; 982 } 983 } else { 984 payload_name = bios_name; 985 } 986 987 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, payload_name); 988 989 payload_size = load_elf(filename, NULL, NULL, &bios_entry, &loadaddr, NULL, 990 1, PPC_ELF_MACHINE, 0, 0); 991 if (payload_size < 0) { 992 /* 993 * Hrm. No ELF image? Try a uImage, maybe someone is giving us an 994 * ePAPR compliant kernel 995 */ 996 payload_size = load_uimage(filename, &bios_entry, &loadaddr, NULL, 997 NULL, NULL); 998 if (payload_size < 0) { 999 error_report("qemu: could not load firmware '%s'", filename); 1000 exit(1); 1001 } 1002 } 1003 1004 g_free(filename); 1005 1006 if (kernel_as_payload) { 1007 kernel_base = loadaddr; 1008 kernel_size = payload_size; 1009 } 1010 1011 cur_base = loadaddr + payload_size; 1012 if (cur_base < (32 * 1024 * 1024)) { 1013 /* u-boot occupies memory up to 32MB, so load blobs above */ 1014 cur_base = (32 * 1024 * 1024); 1015 } 1016 1017 /* Load bare kernel only if no bios/u-boot has been provided */ 1018 if (machine->kernel_filename && !kernel_as_payload) { 1019 kernel_base = cur_base; 1020 kernel_size = load_image_targphys(machine->kernel_filename, 1021 cur_base, 1022 ram_size - cur_base); 1023 if (kernel_size < 0) { 1024 error_report("could not load kernel '%s'", 1025 machine->kernel_filename); 1026 exit(1); 1027 } 1028 1029 cur_base += kernel_size; 1030 } 1031 1032 /* Load initrd. */ 1033 if (machine->initrd_filename) { 1034 initrd_base = (cur_base + INITRD_LOAD_PAD) & ~INITRD_PAD_MASK; 1035 initrd_size = load_image_targphys(machine->initrd_filename, initrd_base, 1036 ram_size - initrd_base); 1037 1038 if (initrd_size < 0) { 1039 error_report("could not load initial ram disk '%s'", 1040 machine->initrd_filename); 1041 exit(1); 1042 } 1043 1044 cur_base = initrd_base + initrd_size; 1045 } 1046 1047 /* 1048 * Reserve space for dtb behind the kernel image because Linux has a bug 1049 * where it can only handle the dtb if it's within the first 64MB of where 1050 * <kernel> starts. dtb cannot not reach initrd_base because INITRD_LOAD_PAD 1051 * ensures enough space between kernel and initrd. 1052 */ 1053 dt_base = (loadaddr + payload_size + DTC_LOAD_PAD) & ~DTC_PAD_MASK; 1054 if (dt_base + DTB_MAX_SIZE > ram_size) { 1055 error_report("qemu: not enough memory for device tree"); 1056 exit(1); 1057 } 1058 1059 dt_size = ppce500_prep_device_tree(machine, params, dt_base, 1060 initrd_base, initrd_size, 1061 kernel_base, kernel_size); 1062 if (dt_size < 0) { 1063 error_report("couldn't load device tree"); 1064 exit(1); 1065 } 1066 assert(dt_size < DTB_MAX_SIZE); 1067 1068 boot_info = env->load_info; 1069 boot_info->entry = bios_entry; 1070 boot_info->dt_base = dt_base; 1071 boot_info->dt_size = dt_size; 1072 } 1073 1074 static void e500_ccsr_initfn(Object *obj) 1075 { 1076 PPCE500CCSRState *ccsr = CCSR(obj); 1077 memory_region_init(&ccsr->ccsr_space, obj, "e500-ccsr", 1078 MPC8544_CCSRBAR_SIZE); 1079 } 1080 1081 static const TypeInfo e500_ccsr_info = { 1082 .name = TYPE_CCSR, 1083 .parent = TYPE_SYS_BUS_DEVICE, 1084 .instance_size = sizeof(PPCE500CCSRState), 1085 .instance_init = e500_ccsr_initfn, 1086 }; 1087 1088 static void e500_register_types(void) 1089 { 1090 type_register_static(&e500_ccsr_info); 1091 } 1092 1093 type_init(e500_register_types) 1094