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qapi/parser: enable pylint checks
[qemu/armbru.git] / hw / ppc / pegasos2.c
blobb8ce859f1a9c8df1662c5d58199e1fcca7dc4c1a
1 /*
2 * QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator
3 *
4 * Copyright (c) 2018-2021 BALATON Zoltan
5 *
6 * This work is licensed under the GNU GPL license version 2 or later.
7 *
8 */
9
10 #include "qemu/osdep.h"
11 #include "qemu-common.h"
12 #include "qemu/units.h"
13 #include "qapi/error.h"
14 #include "hw/hw.h"
15 #include "hw/ppc/ppc.h"
16 #include "hw/sysbus.h"
17 #include "hw/pci/pci_host.h"
18 #include "hw/irq.h"
19 #include "hw/pci-host/mv64361.h"
20 #include "hw/isa/vt82c686.h"
21 #include "hw/ide/pci.h"
22 #include "hw/i2c/smbus_eeprom.h"
23 #include "hw/qdev-properties.h"
24 #include "sysemu/reset.h"
25 #include "hw/boards.h"
26 #include "hw/loader.h"
27 #include "hw/fw-path-provider.h"
28 #include "elf.h"
29 #include "qemu/log.h"
30 #include "qemu/error-report.h"
31 #include "sysemu/kvm.h"
32 #include "kvm_ppc.h"
33 #include "exec/address-spaces.h"
34 #include "trace.h"
35 #include "qemu/datadir.h"
36 #include "sysemu/device_tree.h"
37 #include "hw/ppc/vof.h"
38
39 #include <libfdt.h>
40
41 #define PROM_FILENAME "vof.bin"
42 #define PROM_ADDR 0xfff00000
43 #define PROM_SIZE 0x80000
44
45 #define KVMPPC_HCALL_BASE 0xf000
46 #define KVMPPC_H_RTAS (KVMPPC_HCALL_BASE + 0x0)
47 #define KVMPPC_H_VOF_CLIENT (KVMPPC_HCALL_BASE + 0x5)
48
49 #define H_SUCCESS 0
50 #define H_PRIVILEGE -3 /* Caller not privileged */
51 #define H_PARAMETER -4 /* Parameter invalid, out-of-range or conflicting */
52
53 #define BUS_FREQ_HZ 133333333
54
55 #define PCI0_MEM_BASE 0xc0000000
56 #define PCI0_MEM_SIZE 0x20000000
57 #define PCI0_IO_BASE 0xf8000000
58 #define PCI0_IO_SIZE 0x10000
59
60 #define PCI1_MEM_BASE 0x80000000
61 #define PCI1_MEM_SIZE 0x40000000
62 #define PCI1_IO_BASE 0xfe000000
63 #define PCI1_IO_SIZE 0x10000
64
65 #define TYPE_PEGASOS2_MACHINE MACHINE_TYPE_NAME("pegasos2")
66 OBJECT_DECLARE_TYPE(Pegasos2MachineState, MachineClass, PEGASOS2_MACHINE)
67
68 struct Pegasos2MachineState {
69 MachineState parent_obj;
70 PowerPCCPU *cpu;
71 DeviceState *mv;
72 Vof *vof;
73 void *fdt_blob;
74 uint64_t kernel_addr;
75 uint64_t kernel_entry;
76 uint64_t kernel_size;
77 };
78
79 static void *build_fdt(MachineState *machine, int *fdt_size);
80
81 static void pegasos2_cpu_reset(void *opaque)
82 {
83 PowerPCCPU *cpu = opaque;
84 Pegasos2MachineState *pm = PEGASOS2_MACHINE(current_machine);
85
86 cpu_reset(CPU(cpu));
87 cpu->env.spr[SPR_HID1] = 7ULL << 28;
88 if (pm->vof) {
89 cpu->env.gpr[1] = 2 * VOF_STACK_SIZE - 0x20;
90 cpu->env.nip = 0x100;
91 }
92 }
93
94 static void pegasos2_init(MachineState *machine)
95 {
96 Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
97 CPUPPCState *env;
98 MemoryRegion *rom = g_new(MemoryRegion, 1);
99 PCIBus *pci_bus;
100 PCIDevice *dev;
101 I2CBus *i2c_bus;
102 const char *fwname = machine->firmware ?: PROM_FILENAME;
103 char *filename;
104 int sz;
105 uint8_t *spd_data;
106
107 /* init CPU */
108 pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
109 env = &pm->cpu->env;
110 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
111 error_report("Incompatible CPU, only 6xx bus supported");
112 exit(1);
113 }
114
115 /* Set time-base frequency */
116 cpu_ppc_tb_init(env, BUS_FREQ_HZ / 4);
117 qemu_register_reset(pegasos2_cpu_reset, pm->cpu);
118
119 /* RAM */
120 memory_region_add_subregion(get_system_memory(), 0, machine->ram);
121
122 /* allocate and load firmware */
123 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, fwname);
124 if (!filename) {
125 error_report("Could not find firmware '%s'", fwname);
126 exit(1);
127 }
128 if (!machine->firmware && !pm->vof) {
129 pm->vof = g_malloc0(sizeof(*pm->vof));
130 }
131 memory_region_init_rom(rom, NULL, "pegasos2.rom", PROM_SIZE, &error_fatal);
132 memory_region_add_subregion(get_system_memory(), PROM_ADDR, rom);
133 sz = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 1,
134 PPC_ELF_MACHINE, 0, 0);
135 if (sz <= 0) {
136 sz = load_image_targphys(filename, pm->vof ? 0 : PROM_ADDR, PROM_SIZE);
137 }
138 if (sz <= 0 || sz > PROM_SIZE) {
139 error_report("Could not load firmware '%s'", filename);
140 exit(1);
141 }
142 g_free(filename);
143 if (pm->vof) {
144 pm->vof->fw_size = sz;
145 }
146
147 /* Marvell Discovery II system controller */
148 pm->mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1,
149 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]));
150 pci_bus = mv64361_get_pci_bus(pm->mv, 1);
151
152 /* VIA VT8231 South Bridge (multifunction PCI device) */
153 /* VT8231 function 0: PCI-to-ISA Bridge */
154 dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true,
155 TYPE_VT8231_ISA);
156 qdev_connect_gpio_out(DEVICE(dev), 0,
157 qdev_get_gpio_in_named(pm->mv, "gpp", 31));
158
159 /* VT8231 function 1: IDE Controller */
160 dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 1), "via-ide");
161 pci_ide_create_devs(dev);
162
163 /* VT8231 function 2-3: USB Ports */
164 pci_create_simple(pci_bus, PCI_DEVFN(12, 2), "vt82c686b-usb-uhci");
165 pci_create_simple(pci_bus, PCI_DEVFN(12, 3), "vt82c686b-usb-uhci");
166
167 /* VT8231 function 4: Power Management Controller */
168 dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 4), TYPE_VT8231_PM);
169 i2c_bus = I2C_BUS(qdev_get_child_bus(DEVICE(dev), "i2c"));
170 spd_data = spd_data_generate(DDR, machine->ram_size);
171 smbus_eeprom_init_one(i2c_bus, 0x57, spd_data);
172
173 /* VT8231 function 5-6: AC97 Audio & Modem */
174 pci_create_simple(pci_bus, PCI_DEVFN(12, 5), TYPE_VIA_AC97);
175 pci_create_simple(pci_bus, PCI_DEVFN(12, 6), TYPE_VIA_MC97);
176
177 /* other PC hardware */
178 pci_vga_init(pci_bus);
179
180 if (machine->kernel_filename) {
181 sz = load_elf(machine->kernel_filename, NULL, NULL, NULL,
182 &pm->kernel_entry, &pm->kernel_addr, NULL, NULL, 1,
183 PPC_ELF_MACHINE, 0, 0);
184 if (sz <= 0) {
185 error_report("Could not load kernel '%s'",
186 machine->kernel_filename);
187 exit(1);
188 }
189 pm->kernel_size = sz;
190 if (!pm->vof) {
191 warn_report("Option -kernel may be ineffective with -bios.");
192 }
193 }
194 if (!pm->vof && machine->kernel_cmdline && machine->kernel_cmdline[0]) {
195 warn_report("Option -append may be ineffective with -bios.");
196 }
197 }
198
199 static uint32_t pegasos2_pci_config_read(AddressSpace *as, int bus,
200 uint32_t addr, uint32_t len)
201 {
202 hwaddr pcicfg = (bus ? 0xf1000c78 : 0xf1000cf8);
203 uint32_t val = 0xffffffff;
204
205 stl_le_phys(as, pcicfg, addr | BIT(31));
206 switch (len) {
207 case 4:
208 val = ldl_le_phys(as, pcicfg + 4);
209 break;
210 case 2:
211 val = lduw_le_phys(as, pcicfg + 4);
212 break;
213 case 1:
214 val = ldub_phys(as, pcicfg + 4);
215 break;
216 default:
217 qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid length\n", __func__);
218 break;
219 }
220 return val;
221 }
222
223 static void pegasos2_pci_config_write(AddressSpace *as, int bus, uint32_t addr,
224 uint32_t len, uint32_t val)
225 {
226 hwaddr pcicfg = (bus ? 0xf1000c78 : 0xf1000cf8);
227
228 stl_le_phys(as, pcicfg, addr | BIT(31));
229 switch (len) {
230 case 4:
231 stl_le_phys(as, pcicfg + 4, val);
232 break;
233 case 2:
234 stw_le_phys(as, pcicfg + 4, val);
235 break;
236 case 1:
237 stb_phys(as, pcicfg + 4, val);
238 break;
239 default:
240 qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid length\n", __func__);
241 break;
242 }
243 }
244
245 static void pegasos2_machine_reset(MachineState *machine)
246 {
247 Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
248 AddressSpace *as = CPU(pm->cpu)->as;
249 void *fdt;
250 uint64_t d[2];
251 int sz;
252
253 qemu_devices_reset();
254 if (!pm->vof) {
255 return; /* Firmware should set up machine so nothing to do */
256 }
257
258 /* Otherwise, set up devices that board firmware would normally do */
259 stl_le_phys(as, 0xf1000000, 0x28020ff);
260 stl_le_phys(as, 0xf1000278, 0xa31fc);
261 stl_le_phys(as, 0xf100f300, 0x11ff0400);
262 stl_le_phys(as, 0xf100f10c, 0x80000000);
263 stl_le_phys(as, 0xf100001c, 0x8000000);
264 pegasos2_pci_config_write(as, 0, PCI_COMMAND, 2, PCI_COMMAND_IO |
265 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
266 pegasos2_pci_config_write(as, 1, PCI_COMMAND, 2, PCI_COMMAND_IO |
267 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
268
269 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 0) << 8) |
270 PCI_INTERRUPT_LINE, 2, 0x9);
271 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 0) << 8) |
272 0x50, 1, 0x2);
273
274 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
275 PCI_INTERRUPT_LINE, 2, 0x109);
276 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
277 PCI_CLASS_PROG, 1, 0xf);
278 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
279 0x40, 1, 0xb);
280 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
281 0x50, 4, 0x17171717);
282 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
283 PCI_COMMAND, 2, 0x87);
284
285 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 2) << 8) |
286 PCI_INTERRUPT_LINE, 2, 0x409);
287
288 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 3) << 8) |
289 PCI_INTERRUPT_LINE, 2, 0x409);
290
291 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 4) << 8) |
292 PCI_INTERRUPT_LINE, 2, 0x9);
293 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 4) << 8) |
294 0x48, 4, 0xf00);
295 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 4) << 8) |
296 0x40, 4, 0x558020);
297 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 4) << 8) |
298 0x90, 4, 0xd00);
299
300 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 5) << 8) |
301 PCI_INTERRUPT_LINE, 2, 0x309);
302
303 pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 6) << 8) |
304 PCI_INTERRUPT_LINE, 2, 0x309);
305
306 /* Device tree and VOF set up */
307 vof_init(pm->vof, machine->ram_size, &error_fatal);
308 if (vof_claim(pm->vof, 0, VOF_STACK_SIZE, VOF_STACK_SIZE) == -1) {
309 error_report("Memory allocation for stack failed");
310 exit(1);
311 }
312 if (pm->kernel_size &&
313 vof_claim(pm->vof, pm->kernel_addr, pm->kernel_size, 0) == -1) {
314 error_report("Memory for kernel is in use");
315 exit(1);
316 }
317 fdt = build_fdt(machine, &sz);
318 /* FIXME: VOF assumes entry is same as load address */
319 d[0] = cpu_to_be64(pm->kernel_entry);
320 d[1] = cpu_to_be64(pm->kernel_size - (pm->kernel_entry - pm->kernel_addr));
321 qemu_fdt_setprop(fdt, "/chosen", "qemu,boot-kernel", d, sizeof(d));
322
323 qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt));
324 g_free(pm->fdt_blob);
325 pm->fdt_blob = fdt;
326
327 vof_build_dt(fdt, pm->vof);
328 vof_client_open_store(fdt, pm->vof, "/chosen", "stdout", "/failsafe");
329 pm->cpu->vhyp = PPC_VIRTUAL_HYPERVISOR(machine);
330 }
331
332 enum pegasos2_rtas_tokens {
333 RTAS_RESTART_RTAS = 0,
334 RTAS_NVRAM_FETCH = 1,
335 RTAS_NVRAM_STORE = 2,
336 RTAS_GET_TIME_OF_DAY = 3,
337 RTAS_SET_TIME_OF_DAY = 4,
338 RTAS_EVENT_SCAN = 6,
339 RTAS_CHECK_EXCEPTION = 7,
340 RTAS_READ_PCI_CONFIG = 8,
341 RTAS_WRITE_PCI_CONFIG = 9,
342 RTAS_DISPLAY_CHARACTER = 10,
343 RTAS_SET_INDICATOR = 11,
344 RTAS_POWER_OFF = 17,
345 RTAS_SUSPEND = 18,
346 RTAS_HIBERNATE = 19,
347 RTAS_SYSTEM_REBOOT = 20,
348 };
349
350 static target_ulong pegasos2_rtas(PowerPCCPU *cpu, Pegasos2MachineState *pm,
351 target_ulong args_real)
352 {
353 AddressSpace *as = CPU(cpu)->as;
354 uint32_t token = ldl_be_phys(as, args_real);
355 uint32_t nargs = ldl_be_phys(as, args_real + 4);
356 uint32_t nrets = ldl_be_phys(as, args_real + 8);
357 uint32_t args = args_real + 12;
358 uint32_t rets = args_real + 12 + nargs * 4;
359
360 if (nrets < 1) {
361 qemu_log_mask(LOG_GUEST_ERROR, "Too few return values in RTAS call\n");
362 return H_PARAMETER;
363 }
364 switch (token) {
365 case RTAS_READ_PCI_CONFIG:
366 {
367 uint32_t addr, len, val;
368
369 if (nargs != 2 || nrets != 2) {
370 stl_be_phys(as, rets, -1);
371 return H_PARAMETER;
372 }
373 addr = ldl_be_phys(as, args);
374 len = ldl_be_phys(as, args + 4);
375 val = pegasos2_pci_config_read(as, !(addr >> 24),
376 addr & 0x0fffffff, len);
377 stl_be_phys(as, rets, 0);
378 stl_be_phys(as, rets + 4, val);
379 return H_SUCCESS;
380 }
381 case RTAS_WRITE_PCI_CONFIG:
382 {
383 uint32_t addr, len, val;
384
385 if (nargs != 3 || nrets != 1) {
386 stl_be_phys(as, rets, -1);
387 return H_PARAMETER;
388 }
389 addr = ldl_be_phys(as, args);
390 len = ldl_be_phys(as, args + 4);
391 val = ldl_be_phys(as, args + 8);
392 pegasos2_pci_config_write(as, !(addr >> 24),
393 addr & 0x0fffffff, len, val);
394 stl_be_phys(as, rets, 0);
395 return H_SUCCESS;
396 }
397 case RTAS_DISPLAY_CHARACTER:
398 if (nargs != 1 || nrets != 1) {
399 stl_be_phys(as, rets, -1);
400 return H_PARAMETER;
401 }
402 qemu_log_mask(LOG_UNIMP, "%c", ldl_be_phys(as, args));
403 stl_be_phys(as, rets, 0);
404 return H_SUCCESS;
405 default:
406 qemu_log_mask(LOG_UNIMP, "Unknown RTAS token %u (args=%u, rets=%u)\n",
407 token, nargs, nrets);
408 stl_be_phys(as, rets, 0);
409 return H_SUCCESS;
410 }
411 }
412
413 static void pegasos2_hypercall(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu)
414 {
415 Pegasos2MachineState *pm = PEGASOS2_MACHINE(vhyp);
416 CPUPPCState *env = &cpu->env;
417
418 /* The TCG path should also be holding the BQL at this point */
419 g_assert(qemu_mutex_iothread_locked());
420
421 if (msr_pr) {
422 qemu_log_mask(LOG_GUEST_ERROR, "Hypercall made with MSR[PR]=1\n");
423 env->gpr[3] = H_PRIVILEGE;
424 } else if (env->gpr[3] == KVMPPC_H_RTAS) {
425 env->gpr[3] = pegasos2_rtas(cpu, pm, env->gpr[4]);
426 } else if (env->gpr[3] == KVMPPC_H_VOF_CLIENT) {
427 int ret = vof_client_call(MACHINE(pm), pm->vof, pm->fdt_blob,
428 env->gpr[4]);
429 env->gpr[3] = (ret ? H_PARAMETER : H_SUCCESS);
430 } else {
431 qemu_log_mask(LOG_GUEST_ERROR, "Unsupported hypercall " TARGET_FMT_lx
432 "\n", env->gpr[3]);
433 env->gpr[3] = -1;
434 }
435 }
436
437 static void vhyp_nop(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu)
438 {
439 }
440
441 static target_ulong vhyp_encode_hpt_for_kvm_pr(PPCVirtualHypervisor *vhyp)
442 {
443 return POWERPC_CPU(current_cpu)->env.spr[SPR_SDR1];
444 }
445
446 static bool pegasos2_setprop(MachineState *ms, const char *path,
447 const char *propname, void *val, int vallen)
448 {
449 return true;
450 }
451
452 static void pegasos2_machine_class_init(ObjectClass *oc, void *data)
453 {
454 MachineClass *mc = MACHINE_CLASS(oc);
455 PPCVirtualHypervisorClass *vhc = PPC_VIRTUAL_HYPERVISOR_CLASS(oc);
456 VofMachineIfClass *vmc = VOF_MACHINE_CLASS(oc);
457
458 mc->desc = "Genesi/bPlan Pegasos II";
459 mc->init = pegasos2_init;
460 mc->reset = pegasos2_machine_reset;
461 mc->block_default_type = IF_IDE;
462 mc->default_boot_order = "cd";
463 mc->default_display = "std";
464 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("7400_v2.9");
465 mc->default_ram_id = "pegasos2.ram";
466 mc->default_ram_size = 512 * MiB;
467
468 vhc->hypercall = pegasos2_hypercall;
469 vhc->cpu_exec_enter = vhyp_nop;
470 vhc->cpu_exec_exit = vhyp_nop;
471 vhc->encode_hpt_for_kvm_pr = vhyp_encode_hpt_for_kvm_pr;
472
473 vmc->setprop = pegasos2_setprop;
474 }
475
476 static const TypeInfo pegasos2_machine_info = {
477 .name = TYPE_PEGASOS2_MACHINE,
478 .parent = TYPE_MACHINE,
479 .class_init = pegasos2_machine_class_init,
480 .instance_size = sizeof(Pegasos2MachineState),
481 .interfaces = (InterfaceInfo[]) {
482 { TYPE_PPC_VIRTUAL_HYPERVISOR },
483 { TYPE_VOF_MACHINE_IF },
484 { }
485 },
486 };
487
488 static void pegasos2_machine_register_types(void)
489 {
490 type_register_static(&pegasos2_machine_info);
491 }
492
493 type_init(pegasos2_machine_register_types)
494
495 /* FDT creation for passing to firmware */
496
497 typedef struct {
498 void *fdt;
499 const char *path;
500 } FDTInfo;
501
502 /* We do everything in reverse order so it comes out right in the tree */
503
504 static void dt_ide(PCIBus *bus, PCIDevice *d, FDTInfo *fi)
505 {
506 qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "spi");
507 }
508
509 static void dt_usb(PCIBus *bus, PCIDevice *d, FDTInfo *fi)
510 {
511 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#size-cells", 0);
512 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#address-cells", 1);
513 qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "usb");
514 }
515
516 static void dt_isa(PCIBus *bus, PCIDevice *d, FDTInfo *fi)
517 {
518 GString *name = g_string_sized_new(64);
519 uint32_t cells[3];
520
521 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#size-cells", 1);
522 qemu_fdt_setprop_cell(fi->fdt, fi->path, "#address-cells", 2);
523 qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "isa");
524 qemu_fdt_setprop_string(fi->fdt, fi->path, "name", "isa");
525
526 /* addional devices */
527 g_string_printf(name, "%s/lpt@i3bc", fi->path);
528 qemu_fdt_add_subnode(fi->fdt, name->str);
529 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
530 cells[0] = cpu_to_be32(7);
531 cells[1] = 0;
532 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
533 cells, 2 * sizeof(cells[0]));
534 cells[0] = cpu_to_be32(1);
535 cells[1] = cpu_to_be32(0x3bc);
536 cells[2] = cpu_to_be32(8);
537 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
538 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "lpt");
539 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "lpt");
540
541 g_string_printf(name, "%s/fdc@i3f0", fi->path);
542 qemu_fdt_add_subnode(fi->fdt, name->str);
543 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
544 cells[0] = cpu_to_be32(6);
545 cells[1] = 0;
546 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
547 cells, 2 * sizeof(cells[0]));
548 cells[0] = cpu_to_be32(1);
549 cells[1] = cpu_to_be32(0x3f0);
550 cells[2] = cpu_to_be32(8);
551 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
552 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "fdc");
553 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "fdc");
554
555 g_string_printf(name, "%s/timer@i40", fi->path);
556 qemu_fdt_add_subnode(fi->fdt, name->str);
557 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
558 cells[0] = cpu_to_be32(1);
559 cells[1] = cpu_to_be32(0x40);
560 cells[2] = cpu_to_be32(8);
561 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
562 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "timer");
563 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "timer");
564
565 g_string_printf(name, "%s/rtc@i70", fi->path);
566 qemu_fdt_add_subnode(fi->fdt, name->str);
567 qemu_fdt_setprop_string(fi->fdt, name->str, "compatible", "ds1385-rtc");
568 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
569 cells[0] = cpu_to_be32(8);
570 cells[1] = 0;
571 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
572 cells, 2 * sizeof(cells[0]));
573 cells[0] = cpu_to_be32(1);
574 cells[1] = cpu_to_be32(0x70);
575 cells[2] = cpu_to_be32(2);
576 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
577 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "rtc");
578 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "rtc");
579
580 g_string_printf(name, "%s/keyboard@i60", fi->path);
581 qemu_fdt_add_subnode(fi->fdt, name->str);
582 cells[0] = cpu_to_be32(1);
583 cells[1] = 0;
584 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
585 cells, 2 * sizeof(cells[0]));
586 cells[0] = cpu_to_be32(1);
587 cells[1] = cpu_to_be32(0x60);
588 cells[2] = cpu_to_be32(5);
589 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
590 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "keyboard");
591 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "keyboard");
592
593 g_string_printf(name, "%s/8042@i60", fi->path);
594 qemu_fdt_add_subnode(fi->fdt, name->str);
595 qemu_fdt_setprop_cell(fi->fdt, name->str, "#interrupt-cells", 2);
596 qemu_fdt_setprop_cell(fi->fdt, name->str, "#size-cells", 0);
597 qemu_fdt_setprop_cell(fi->fdt, name->str, "#address-cells", 1);
598 qemu_fdt_setprop_string(fi->fdt, name->str, "interrupt-controller", "");
599 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
600 cells[0] = cpu_to_be32(1);
601 cells[1] = cpu_to_be32(0x60);
602 cells[2] = cpu_to_be32(5);
603 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
604 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "");
605 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "8042");
606
607 g_string_printf(name, "%s/serial@i2f8", fi->path);
608 qemu_fdt_add_subnode(fi->fdt, name->str);
609 qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
610 cells[0] = cpu_to_be32(3);
611 cells[1] = 0;
612 qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
613 cells, 2 * sizeof(cells[0]));
614 cells[0] = cpu_to_be32(1);
615 cells[1] = cpu_to_be32(0x2f8);
616 cells[2] = cpu_to_be32(8);
617 qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
618 qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "serial");
619 qemu_fdt_setprop_string(fi->fdt, name->str, "name", "serial");
620
621 g_string_free(name, TRUE);
622 }
623
624 static struct {
625 const char *id;
626 const char *name;
627 void (*dtf)(PCIBus *bus, PCIDevice *d, FDTInfo *fi);
628 } device_map[] = {
629 { "pci11ab,6460", "host", NULL },
630 { "pci1106,8231", "isa", dt_isa },
631 { "pci1106,571", "ide", dt_ide },
632 { "pci1106,3044", "firewire", NULL },
633 { "pci1106,3038", "usb", dt_usb },
634 { "pci1106,8235", "other", NULL },
635 { "pci1106,3058", "sound", NULL },
636 { NULL, NULL }
637 };
638
639 static void add_pci_device(PCIBus *bus, PCIDevice *d, void *opaque)
640 {
641 FDTInfo *fi = opaque;
642 GString *node = g_string_new(NULL);
643 uint32_t cells[(PCI_NUM_REGIONS + 1) * 5];
644 int i, j;
645 const char *name = NULL;
646 g_autofree const gchar *pn = g_strdup_printf("pci%x,%x",
647 pci_get_word(&d->config[PCI_VENDOR_ID]),
648 pci_get_word(&d->config[PCI_DEVICE_ID]));
649
650 for (i = 0; device_map[i].id; i++) {
651 if (!strcmp(pn, device_map[i].id)) {
652 name = device_map[i].name;
653 break;
654 }
655 }
656 g_string_printf(node, "%s/%s@%x", fi->path, (name ?: pn),
657 PCI_SLOT(d->devfn));
658 if (PCI_FUNC(d->devfn)) {
659 g_string_append_printf(node, ",%x", PCI_FUNC(d->devfn));
660 }
661
662 qemu_fdt_add_subnode(fi->fdt, node->str);
663 if (device_map[i].dtf) {
664 FDTInfo cfi = { fi->fdt, node->str };
665 device_map[i].dtf(bus, d, &cfi);
666 }
667 cells[0] = cpu_to_be32(d->devfn << 8);
668 cells[1] = 0;
669 cells[2] = 0;
670 cells[3] = 0;
671 cells[4] = 0;
672 j = 5;
673 for (i = 0; i < PCI_NUM_REGIONS; i++) {
674 if (!d->io_regions[i].size) {
675 continue;
676 }
677 cells[j] = cpu_to_be32(d->devfn << 8 | (PCI_BASE_ADDRESS_0 + i * 4));
678 if (d->io_regions[i].type & PCI_BASE_ADDRESS_SPACE_IO) {
679 cells[j] |= cpu_to_be32(1 << 24);
680 } else {
681 cells[j] |= cpu_to_be32(2 << 24);
682 if (d->io_regions[i].type & PCI_BASE_ADDRESS_MEM_PREFETCH) {
683 cells[j] |= cpu_to_be32(4 << 28);
684 }
685 }
686 cells[j + 1] = 0;
687 cells[j + 2] = 0;
688 cells[j + 3] = cpu_to_be32(d->io_regions[i].size >> 32);
689 cells[j + 4] = cpu_to_be32(d->io_regions[i].size);
690 j += 5;
691 }
692 qemu_fdt_setprop(fi->fdt, node->str, "reg", cells, j * sizeof(cells[0]));
693 qemu_fdt_setprop_string(fi->fdt, node->str, "name", name ?: pn);
694 if (pci_get_byte(&d->config[PCI_INTERRUPT_PIN])) {
695 qemu_fdt_setprop_cell(fi->fdt, node->str, "interrupts",
696 pci_get_byte(&d->config[PCI_INTERRUPT_PIN]));
697 }
698 /* Pegasos2 firmware has subsystem-id amd subsystem-vendor-id swapped */
699 qemu_fdt_setprop_cell(fi->fdt, node->str, "subsystem-vendor-id",
700 pci_get_word(&d->config[PCI_SUBSYSTEM_ID]));
701 qemu_fdt_setprop_cell(fi->fdt, node->str, "subsystem-id",
702 pci_get_word(&d->config[PCI_SUBSYSTEM_VENDOR_ID]));
703 cells[0] = pci_get_long(&d->config[PCI_CLASS_REVISION]);
704 qemu_fdt_setprop_cell(fi->fdt, node->str, "class-code", cells[0] >> 8);
705 qemu_fdt_setprop_cell(fi->fdt, node->str, "revision-id", cells[0] & 0xff);
706 qemu_fdt_setprop_cell(fi->fdt, node->str, "device-id",
707 pci_get_word(&d->config[PCI_DEVICE_ID]));
708 qemu_fdt_setprop_cell(fi->fdt, node->str, "vendor-id",
709 pci_get_word(&d->config[PCI_VENDOR_ID]));
710
711 g_string_free(node, TRUE);
712 }
713
714 static void *build_fdt(MachineState *machine, int *fdt_size)
715 {
716 Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
717 PowerPCCPU *cpu = pm->cpu;
718 PCIBus *pci_bus;
719 FDTInfo fi;
720 uint32_t cells[16];
721 void *fdt = create_device_tree(fdt_size);
722
723 fi.fdt = fdt;
724
725 /* root node */
726 qemu_fdt_setprop_string(fdt, "/", "CODEGEN,description",
727 "Pegasos CHRP PowerPC System");
728 qemu_fdt_setprop_string(fdt, "/", "CODEGEN,board", "Pegasos2");
729 qemu_fdt_setprop_string(fdt, "/", "CODEGEN,vendor", "bplan GmbH");
730 qemu_fdt_setprop_string(fdt, "/", "revision", "2B");
731 qemu_fdt_setprop_string(fdt, "/", "model", "Pegasos2");
732 qemu_fdt_setprop_string(fdt, "/", "device_type", "chrp");
733 qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 1);
734 qemu_fdt_setprop_string(fdt, "/", "name", "bplan,Pegasos2");
735
736 /* pci@c0000000 */
737 qemu_fdt_add_subnode(fdt, "/pci@c0000000");
738 cells[0] = 0;
739 cells[1] = 0;
740 qemu_fdt_setprop(fdt, "/pci@c0000000", "bus-range",
741 cells, 2 * sizeof(cells[0]));
742 qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "pci-bridge-number", 1);
743 cells[0] = cpu_to_be32(PCI0_MEM_BASE);
744 cells[1] = cpu_to_be32(PCI0_MEM_SIZE);
745 qemu_fdt_setprop(fdt, "/pci@c0000000", "reg", cells, 2 * sizeof(cells[0]));
746 cells[0] = cpu_to_be32(0x01000000);
747 cells[1] = 0;
748 cells[2] = 0;
749 cells[3] = cpu_to_be32(PCI0_IO_BASE);
750 cells[4] = 0;
751 cells[5] = cpu_to_be32(PCI0_IO_SIZE);
752 cells[6] = cpu_to_be32(0x02000000);
753 cells[7] = 0;
754 cells[8] = cpu_to_be32(PCI0_MEM_BASE);
755 cells[9] = cpu_to_be32(PCI0_MEM_BASE);
756 cells[10] = 0;
757 cells[11] = cpu_to_be32(PCI0_MEM_SIZE);
758 qemu_fdt_setprop(fdt, "/pci@c0000000", "ranges",
759 cells, 12 * sizeof(cells[0]));
760 qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "#size-cells", 2);
761 qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "#address-cells", 3);
762 qemu_fdt_setprop_string(fdt, "/pci@c0000000", "device_type", "pci");
763 qemu_fdt_setprop_string(fdt, "/pci@c0000000", "name", "pci");
764
765 fi.path = "/pci@c0000000";
766 pci_bus = mv64361_get_pci_bus(pm->mv, 0);
767 pci_for_each_device_reverse(pci_bus, 0, add_pci_device, &fi);
768
769 /* pci@80000000 */
770 qemu_fdt_add_subnode(fdt, "/pci@80000000");
771 cells[0] = 0;
772 cells[1] = 0;
773 qemu_fdt_setprop(fdt, "/pci@80000000", "bus-range",
774 cells, 2 * sizeof(cells[0]));
775 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "pci-bridge-number", 0);
776 cells[0] = cpu_to_be32(PCI1_MEM_BASE);
777 cells[1] = cpu_to_be32(PCI1_MEM_SIZE);
778 qemu_fdt_setprop(fdt, "/pci@80000000", "reg", cells, 2 * sizeof(cells[0]));
779 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "8259-interrupt-acknowledge",
780 0xf1000cb4);
781 cells[0] = cpu_to_be32(0x01000000);
782 cells[1] = 0;
783 cells[2] = 0;
784 cells[3] = cpu_to_be32(PCI1_IO_BASE);
785 cells[4] = 0;
786 cells[5] = cpu_to_be32(PCI1_IO_SIZE);
787 cells[6] = cpu_to_be32(0x02000000);
788 cells[7] = 0;
789 cells[8] = cpu_to_be32(PCI1_MEM_BASE);
790 cells[9] = cpu_to_be32(PCI1_MEM_BASE);
791 cells[10] = 0;
792 cells[11] = cpu_to_be32(PCI1_MEM_SIZE);
793 qemu_fdt_setprop(fdt, "/pci@80000000", "ranges",
794 cells, 12 * sizeof(cells[0]));
795 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "#size-cells", 2);
796 qemu_fdt_setprop_cell(fdt, "/pci@80000000", "#address-cells", 3);
797 qemu_fdt_setprop_string(fdt, "/pci@80000000", "device_type", "pci");
798 qemu_fdt_setprop_string(fdt, "/pci@80000000", "name", "pci");
799
800 fi.path = "/pci@80000000";
801 pci_bus = mv64361_get_pci_bus(pm->mv, 1);
802 pci_for_each_device_reverse(pci_bus, 0, add_pci_device, &fi);
803
804 qemu_fdt_add_subnode(fdt, "/failsafe");
805 qemu_fdt_setprop_string(fdt, "/failsafe", "device_type", "serial");
806 qemu_fdt_setprop_string(fdt, "/failsafe", "name", "failsafe");
807
808 qemu_fdt_add_subnode(fdt, "/rtas");
809 qemu_fdt_setprop_cell(fdt, "/rtas", "system-reboot", RTAS_SYSTEM_REBOOT);
810 qemu_fdt_setprop_cell(fdt, "/rtas", "hibernate", RTAS_HIBERNATE);
811 qemu_fdt_setprop_cell(fdt, "/rtas", "suspend", RTAS_SUSPEND);
812 qemu_fdt_setprop_cell(fdt, "/rtas", "power-off", RTAS_POWER_OFF);
813 qemu_fdt_setprop_cell(fdt, "/rtas", "set-indicator", RTAS_SET_INDICATOR);
814 qemu_fdt_setprop_cell(fdt, "/rtas", "display-character",
815 RTAS_DISPLAY_CHARACTER);
816 qemu_fdt_setprop_cell(fdt, "/rtas", "write-pci-config",
817 RTAS_WRITE_PCI_CONFIG);
818 qemu_fdt_setprop_cell(fdt, "/rtas", "read-pci-config",
819 RTAS_READ_PCI_CONFIG);
820 /* Pegasos2 firmware misspells check-exception and guests use that */
821 qemu_fdt_setprop_cell(fdt, "/rtas", "check-execption",
822 RTAS_CHECK_EXCEPTION);
823 qemu_fdt_setprop_cell(fdt, "/rtas", "event-scan", RTAS_EVENT_SCAN);
824 qemu_fdt_setprop_cell(fdt, "/rtas", "set-time-of-day",
825 RTAS_SET_TIME_OF_DAY);
826 qemu_fdt_setprop_cell(fdt, "/rtas", "get-time-of-day",
827 RTAS_GET_TIME_OF_DAY);
828 qemu_fdt_setprop_cell(fdt, "/rtas", "nvram-store", RTAS_NVRAM_STORE);
829 qemu_fdt_setprop_cell(fdt, "/rtas", "nvram-fetch", RTAS_NVRAM_FETCH);
830 qemu_fdt_setprop_cell(fdt, "/rtas", "restart-rtas", RTAS_RESTART_RTAS);
831 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-error-log-max", 0);
832 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-event-scan-rate", 0);
833 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-display-device", 0);
834 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-size", 20);
835 qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-version", 1);
836
837 /* cpus */
838 qemu_fdt_add_subnode(fdt, "/cpus");
839 qemu_fdt_setprop_cell(fdt, "/cpus", "#cpus", 1);
840 qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 1);
841 qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0);
842 qemu_fdt_setprop_string(fdt, "/cpus", "name", "cpus");
843
844 /* FIXME Get CPU name from CPU object */
845 const char *cp = "/cpus/PowerPC,G4";
846 qemu_fdt_add_subnode(fdt, cp);
847 qemu_fdt_setprop_cell(fdt, cp, "l2cr", 0);
848 qemu_fdt_setprop_cell(fdt, cp, "d-cache-size", 0x8000);
849 qemu_fdt_setprop_cell(fdt, cp, "d-cache-block-size",
850 cpu->env.dcache_line_size);
851 qemu_fdt_setprop_cell(fdt, cp, "d-cache-line-size",
852 cpu->env.dcache_line_size);
853 qemu_fdt_setprop_cell(fdt, cp, "i-cache-size", 0x8000);
854 qemu_fdt_setprop_cell(fdt, cp, "i-cache-block-size",
855 cpu->env.icache_line_size);
856 qemu_fdt_setprop_cell(fdt, cp, "i-cache-line-size",
857 cpu->env.icache_line_size);
858 if (cpu->env.id_tlbs) {
859 qemu_fdt_setprop_cell(fdt, cp, "i-tlb-sets", cpu->env.nb_ways);
860 qemu_fdt_setprop_cell(fdt, cp, "i-tlb-size", cpu->env.tlb_per_way);
861 qemu_fdt_setprop_cell(fdt, cp, "d-tlb-sets", cpu->env.nb_ways);
862 qemu_fdt_setprop_cell(fdt, cp, "d-tlb-size", cpu->env.tlb_per_way);
863 qemu_fdt_setprop_string(fdt, cp, "tlb-split", "");
864 }
865 qemu_fdt_setprop_cell(fdt, cp, "tlb-sets", cpu->env.nb_ways);
866 qemu_fdt_setprop_cell(fdt, cp, "tlb-size", cpu->env.nb_tlb);
867 qemu_fdt_setprop_string(fdt, cp, "state", "running");
868 if (cpu->env.insns_flags & PPC_ALTIVEC) {
869 qemu_fdt_setprop_string(fdt, cp, "altivec", "");
870 qemu_fdt_setprop_string(fdt, cp, "data-streams", "");
871 }
872 /*
873 * FIXME What flags do data-streams, external-control and
874 * performance-monitor depend on?
875 */
876 qemu_fdt_setprop_string(fdt, cp, "external-control", "");
877 if (cpu->env.insns_flags & PPC_FLOAT_FSQRT) {
878 qemu_fdt_setprop_string(fdt, cp, "general-purpose", "");
879 }
880 qemu_fdt_setprop_string(fdt, cp, "performance-monitor", "");
881 if (cpu->env.insns_flags & PPC_FLOAT_FRES) {
882 qemu_fdt_setprop_string(fdt, cp, "graphics", "");
883 }
884 qemu_fdt_setprop_cell(fdt, cp, "reservation-granule-size", 4);
885 qemu_fdt_setprop_cell(fdt, cp, "timebase-frequency",
886 cpu->env.tb_env->tb_freq);
887 qemu_fdt_setprop_cell(fdt, cp, "bus-frequency", BUS_FREQ_HZ);
888 qemu_fdt_setprop_cell(fdt, cp, "clock-frequency", BUS_FREQ_HZ * 7.5);
889 qemu_fdt_setprop_cell(fdt, cp, "cpu-version", cpu->env.spr[SPR_PVR]);
890 cells[0] = 0;
891 cells[1] = 0;
892 qemu_fdt_setprop(fdt, cp, "reg", cells, 2 * sizeof(cells[0]));
893 qemu_fdt_setprop_string(fdt, cp, "device_type", "cpu");
894 qemu_fdt_setprop_string(fdt, cp, "name", strrchr(cp, '/') + 1);
895
896 /* memory */
897 qemu_fdt_add_subnode(fdt, "/memory@0");
898 cells[0] = 0;
899 cells[1] = cpu_to_be32(machine->ram_size);
900 qemu_fdt_setprop(fdt, "/memory@0", "reg", cells, 2 * sizeof(cells[0]));
901 qemu_fdt_setprop_string(fdt, "/memory@0", "device_type", "memory");
902 qemu_fdt_setprop_string(fdt, "/memory@0", "name", "memory");
903
904 qemu_fdt_add_subnode(fdt, "/chosen");
905 qemu_fdt_setprop_string(fdt, "/chosen", "bootargs",
906 machine->kernel_cmdline ?: "");
907 qemu_fdt_setprop_string(fdt, "/chosen", "name", "chosen");
908
909 qemu_fdt_add_subnode(fdt, "/openprom");
910 qemu_fdt_setprop_string(fdt, "/openprom", "model", "Pegasos2,1.1");
911
912 return fdt;
913 }
armbru's QEMU hackery