9d2a7f59e36112d194ca710a410a2ed3cb5a0fef
[qemu-kvm/fedora.git] / hw / sun4u.c
blob9d2a7f59e36112d194ca710a410a2ed3cb5a0fef
1 /*
2 * QEMU Sun4u/Sun4v System Emulator
4 * Copyright (c) 2005 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
24 #include "hw.h"
25 #include "pci.h"
26 #include "pc.h"
27 #include "nvram.h"
28 #include "fdc.h"
29 #include "net.h"
30 #include "qemu-timer.h"
31 #include "sysemu.h"
32 #include "boards.h"
33 #include "firmware_abi.h"
34 #include "fw_cfg.h"
36 //#define DEBUG_IRQ
38 #ifdef DEBUG_IRQ
39 #define DPRINTF(fmt, ...) \
40 do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0)
41 #else
42 #define DPRINTF(fmt, ...)
43 #endif
45 #define KERNEL_LOAD_ADDR 0x00404000
46 #define CMDLINE_ADDR 0x003ff000
47 #define INITRD_LOAD_ADDR 0x00300000
48 #define PROM_SIZE_MAX (4 * 1024 * 1024)
49 #define PROM_VADDR 0x000ffd00000ULL
50 #define APB_SPECIAL_BASE 0x1fe00000000ULL
51 #define APB_MEM_BASE 0x1ff00000000ULL
52 #define VGA_BASE (APB_MEM_BASE + 0x400000ULL)
53 #define PROM_FILENAME "openbios-sparc64"
54 #define NVRAM_SIZE 0x2000
55 #define MAX_IDE_BUS 2
56 #define BIOS_CFG_IOPORT 0x510
58 #define MAX_PILS 16
60 #define TICK_INT_DIS 0x8000000000000000ULL
61 #define TICK_MAX 0x7fffffffffffffffULL
63 struct hwdef {
64 const char * const default_cpu_model;
65 uint16_t machine_id;
66 uint64_t prom_addr;
67 uint64_t console_serial_base;
70 int DMA_get_channel_mode (int nchan)
72 return 0;
74 int DMA_read_memory (int nchan, void *buf, int pos, int size)
76 return 0;
78 int DMA_write_memory (int nchan, void *buf, int pos, int size)
80 return 0;
82 void DMA_hold_DREQ (int nchan) {}
83 void DMA_release_DREQ (int nchan) {}
84 void DMA_schedule(int nchan) {}
85 void DMA_init (int high_page_enable) {}
86 void DMA_register_channel (int nchan,
87 DMA_transfer_handler transfer_handler,
88 void *opaque)
92 static int fw_cfg_boot_set(void *opaque, const char *boot_device)
94 fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
95 return 0;
98 static int sun4u_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size,
99 const char *arch,
100 ram_addr_t RAM_size,
101 const char *boot_devices,
102 uint32_t kernel_image, uint32_t kernel_size,
103 const char *cmdline,
104 uint32_t initrd_image, uint32_t initrd_size,
105 uint32_t NVRAM_image,
106 int width, int height, int depth,
107 const uint8_t *macaddr)
109 unsigned int i;
110 uint32_t start, end;
111 uint8_t image[0x1ff0];
112 struct OpenBIOS_nvpart_v1 *part_header;
114 memset(image, '\0', sizeof(image));
116 start = 0;
118 // OpenBIOS nvram variables
119 // Variable partition
120 part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
121 part_header->signature = OPENBIOS_PART_SYSTEM;
122 pstrcpy(part_header->name, sizeof(part_header->name), "system");
124 end = start + sizeof(struct OpenBIOS_nvpart_v1);
125 for (i = 0; i < nb_prom_envs; i++)
126 end = OpenBIOS_set_var(image, end, prom_envs[i]);
128 // End marker
129 image[end++] = '\0';
131 end = start + ((end - start + 15) & ~15);
132 OpenBIOS_finish_partition(part_header, end - start);
134 // free partition
135 start = end;
136 part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
137 part_header->signature = OPENBIOS_PART_FREE;
138 pstrcpy(part_header->name, sizeof(part_header->name), "free");
140 end = 0x1fd0;
141 OpenBIOS_finish_partition(part_header, end - start);
143 Sun_init_header((struct Sun_nvram *)&image[0x1fd8], macaddr, 0x80);
145 for (i = 0; i < sizeof(image); i++)
146 m48t59_write(nvram, i, image[i]);
148 return 0;
151 void pic_info(Monitor *mon)
155 void irq_info(Monitor *mon)
159 void cpu_check_irqs(CPUState *env)
161 uint32_t pil = env->pil_in | (env->softint & ~SOFTINT_TIMER) |
162 ((env->softint & SOFTINT_TIMER) << 14);
164 if (pil && (env->interrupt_index == 0 ||
165 (env->interrupt_index & ~15) == TT_EXTINT)) {
166 unsigned int i;
168 for (i = 15; i > 0; i--) {
169 if (pil & (1 << i)) {
170 int old_interrupt = env->interrupt_index;
172 env->interrupt_index = TT_EXTINT | i;
173 if (old_interrupt != env->interrupt_index) {
174 DPRINTF("Set CPU IRQ %d\n", i);
175 cpu_interrupt(env, CPU_INTERRUPT_HARD);
177 break;
180 } else if (!pil && (env->interrupt_index & ~15) == TT_EXTINT) {
181 DPRINTF("Reset CPU IRQ %d\n", env->interrupt_index & 15);
182 env->interrupt_index = 0;
183 cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
187 static void cpu_set_irq(void *opaque, int irq, int level)
189 CPUState *env = opaque;
191 if (level) {
192 DPRINTF("Raise CPU IRQ %d\n", irq);
193 env->halted = 0;
194 env->pil_in |= 1 << irq;
195 cpu_check_irqs(env);
196 } else {
197 DPRINTF("Lower CPU IRQ %d\n", irq);
198 env->pil_in &= ~(1 << irq);
199 cpu_check_irqs(env);
203 void qemu_system_powerdown(void)
207 typedef struct ResetData {
208 CPUState *env;
209 uint64_t reset_addr;
210 } ResetData;
212 static void main_cpu_reset(void *opaque)
214 ResetData *s = (ResetData *)opaque;
215 CPUState *env = s->env;
217 cpu_reset(env);
218 env->tick_cmpr = TICK_INT_DIS | 0;
219 ptimer_set_limit(env->tick, TICK_MAX, 1);
220 ptimer_run(env->tick, 1);
221 env->stick_cmpr = TICK_INT_DIS | 0;
222 ptimer_set_limit(env->stick, TICK_MAX, 1);
223 ptimer_run(env->stick, 1);
224 env->hstick_cmpr = TICK_INT_DIS | 0;
225 ptimer_set_limit(env->hstick, TICK_MAX, 1);
226 ptimer_run(env->hstick, 1);
227 env->gregs[1] = 0; // Memory start
228 env->gregs[2] = ram_size; // Memory size
229 env->gregs[3] = 0; // Machine description XXX
230 env->pc = s->reset_addr;
231 env->npc = env->pc + 4;
234 static void tick_irq(void *opaque)
236 CPUState *env = opaque;
238 if (!(env->tick_cmpr & TICK_INT_DIS)) {
239 env->softint |= SOFTINT_TIMER;
240 cpu_interrupt(env, CPU_INTERRUPT_TIMER);
244 static void stick_irq(void *opaque)
246 CPUState *env = opaque;
248 if (!(env->stick_cmpr & TICK_INT_DIS)) {
249 env->softint |= SOFTINT_STIMER;
250 cpu_interrupt(env, CPU_INTERRUPT_TIMER);
254 static void hstick_irq(void *opaque)
256 CPUState *env = opaque;
258 if (!(env->hstick_cmpr & TICK_INT_DIS)) {
259 cpu_interrupt(env, CPU_INTERRUPT_TIMER);
263 void cpu_tick_set_count(void *opaque, uint64_t count)
265 ptimer_set_count(opaque, -count);
268 uint64_t cpu_tick_get_count(void *opaque)
270 return -ptimer_get_count(opaque);
273 void cpu_tick_set_limit(void *opaque, uint64_t limit)
275 ptimer_set_limit(opaque, -limit, 0);
278 static const int ide_iobase[2] = { 0x1f0, 0x170 };
279 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
280 static const int ide_irq[2] = { 14, 15 };
282 static const int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
283 static const int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
285 static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
286 static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
288 static fdctrl_t *floppy_controller;
290 static void ebus_mmio_mapfunc(PCIDevice *pci_dev, int region_num,
291 uint32_t addr, uint32_t size, int type)
293 DPRINTF("Mapping region %d registers at %08x\n", region_num, addr);
294 switch (region_num) {
295 case 0:
296 isa_mmio_init(addr, 0x1000000);
297 break;
298 case 1:
299 isa_mmio_init(addr, 0x800000);
300 break;
304 /* EBUS (Eight bit bus) bridge */
305 static void
306 pci_ebus_init(PCIBus *bus, int devfn)
308 pci_create_simple(bus, devfn, "ebus");
311 static void
312 pci_ebus_init1(PCIDevice *s)
314 pci_config_set_vendor_id(s->config, PCI_VENDOR_ID_SUN);
315 pci_config_set_device_id(s->config, PCI_DEVICE_ID_SUN_EBUS);
316 s->config[0x04] = 0x06; // command = bus master, pci mem
317 s->config[0x05] = 0x00;
318 s->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no error
319 s->config[0x07] = 0x03; // status = medium devsel
320 s->config[0x08] = 0x01; // revision
321 s->config[0x09] = 0x00; // programming i/f
322 pci_config_set_class(s->config, PCI_CLASS_BRIDGE_OTHER);
323 s->config[0x0D] = 0x0a; // latency_timer
324 s->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
326 pci_register_bar(s, 0, 0x1000000, PCI_ADDRESS_SPACE_MEM,
327 ebus_mmio_mapfunc);
328 pci_register_bar(s, 1, 0x800000, PCI_ADDRESS_SPACE_MEM,
329 ebus_mmio_mapfunc);
332 static PCIDeviceInfo ebus_info = {
333 .qdev.name = "ebus",
334 .qdev.size = sizeof(PCIDevice),
335 .init = pci_ebus_init1,
338 static void pci_ebus_register(void)
340 pci_qdev_register(&ebus_info);
343 device_init(pci_ebus_register);
345 static void sun4uv_init(ram_addr_t RAM_size,
346 const char *boot_devices,
347 const char *kernel_filename, const char *kernel_cmdline,
348 const char *initrd_filename, const char *cpu_model,
349 const struct hwdef *hwdef)
351 CPUState *env;
352 char *filename;
353 m48t59_t *nvram;
354 int ret, linux_boot;
355 unsigned int i;
356 ram_addr_t ram_offset, prom_offset;
357 long initrd_size, kernel_size;
358 PCIBus *pci_bus, *pci_bus2, *pci_bus3;
359 QEMUBH *bh;
360 qemu_irq *irq;
361 int drive_index;
362 BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
363 BlockDriverState *fd[MAX_FD];
364 void *fw_cfg;
365 ResetData *reset_info;
367 linux_boot = (kernel_filename != NULL);
369 /* init CPUs */
370 if (!cpu_model)
371 cpu_model = hwdef->default_cpu_model;
373 env = cpu_init(cpu_model);
374 if (!env) {
375 fprintf(stderr, "Unable to find Sparc CPU definition\n");
376 exit(1);
378 bh = qemu_bh_new(tick_irq, env);
379 env->tick = ptimer_init(bh);
380 ptimer_set_period(env->tick, 1ULL);
382 bh = qemu_bh_new(stick_irq, env);
383 env->stick = ptimer_init(bh);
384 ptimer_set_period(env->stick, 1ULL);
386 bh = qemu_bh_new(hstick_irq, env);
387 env->hstick = ptimer_init(bh);
388 ptimer_set_period(env->hstick, 1ULL);
390 reset_info = qemu_mallocz(sizeof(ResetData));
391 reset_info->env = env;
392 reset_info->reset_addr = hwdef->prom_addr + 0x40ULL;
393 qemu_register_reset(main_cpu_reset, reset_info);
394 main_cpu_reset(reset_info);
395 // Override warm reset address with cold start address
396 env->pc = hwdef->prom_addr + 0x20ULL;
397 env->npc = env->pc + 4;
399 /* allocate RAM */
400 ram_offset = qemu_ram_alloc(RAM_size);
401 cpu_register_physical_memory(0, RAM_size, ram_offset);
403 prom_offset = qemu_ram_alloc(PROM_SIZE_MAX);
404 cpu_register_physical_memory(hwdef->prom_addr,
405 (PROM_SIZE_MAX + TARGET_PAGE_SIZE) &
406 TARGET_PAGE_MASK,
407 prom_offset | IO_MEM_ROM);
409 if (bios_name == NULL)
410 bios_name = PROM_FILENAME;
411 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
412 if (filename) {
413 ret = load_elf(filename, hwdef->prom_addr - PROM_VADDR,
414 NULL, NULL, NULL);
415 if (ret < 0) {
416 ret = load_image_targphys(filename, hwdef->prom_addr,
417 (PROM_SIZE_MAX + TARGET_PAGE_SIZE) &
418 TARGET_PAGE_MASK);
420 qemu_free(filename);
421 } else {
422 ret = -1;
424 if (ret < 0) {
425 fprintf(stderr, "qemu: could not load prom '%s'\n",
426 bios_name);
427 exit(1);
430 kernel_size = 0;
431 initrd_size = 0;
432 if (linux_boot) {
433 /* XXX: put correct offset */
434 kernel_size = load_elf(kernel_filename, 0, NULL, NULL, NULL);
435 if (kernel_size < 0)
436 kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
437 ram_size - KERNEL_LOAD_ADDR);
438 if (kernel_size < 0)
439 kernel_size = load_image_targphys(kernel_filename,
440 KERNEL_LOAD_ADDR,
441 ram_size - KERNEL_LOAD_ADDR);
442 if (kernel_size < 0) {
443 fprintf(stderr, "qemu: could not load kernel '%s'\n",
444 kernel_filename);
445 exit(1);
448 /* load initrd */
449 if (initrd_filename) {
450 initrd_size = load_image_targphys(initrd_filename,
451 INITRD_LOAD_ADDR,
452 ram_size - INITRD_LOAD_ADDR);
453 if (initrd_size < 0) {
454 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
455 initrd_filename);
456 exit(1);
459 if (initrd_size > 0) {
460 for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
461 if (ldl_phys(KERNEL_LOAD_ADDR + i) == 0x48647253) { // HdrS
462 stl_phys(KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
463 stl_phys(KERNEL_LOAD_ADDR + i + 20, initrd_size);
464 break;
470 irq = qemu_allocate_irqs(cpu_set_irq, env, MAX_PILS);
471 pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, irq, &pci_bus2,
472 &pci_bus3);
473 isa_mem_base = VGA_BASE;
474 pci_vga_init(pci_bus, 0, 0);
476 // XXX Should be pci_bus3
477 pci_ebus_init(pci_bus, -1);
479 i = 0;
480 if (hwdef->console_serial_base) {
481 serial_mm_init(hwdef->console_serial_base, 0, NULL, 115200,
482 serial_hds[i], 1);
483 i++;
485 for(; i < MAX_SERIAL_PORTS; i++) {
486 if (serial_hds[i]) {
487 serial_init(serial_io[i], NULL/*serial_irq[i]*/, 115200,
488 serial_hds[i]);
492 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
493 if (parallel_hds[i]) {
494 parallel_init(parallel_io[i], NULL/*parallel_irq[i]*/,
495 parallel_hds[i]);
499 for(i = 0; i < nb_nics; i++)
500 pci_nic_init(&nd_table[i], "ne2k_pci", NULL);
502 if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
503 fprintf(stderr, "qemu: too many IDE bus\n");
504 exit(1);
506 for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
507 drive_index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS,
508 i % MAX_IDE_DEVS);
509 if (drive_index != -1)
510 hd[i] = drives_table[drive_index].bdrv;
511 else
512 hd[i] = NULL;
515 pci_cmd646_ide_init(pci_bus, hd, 1);
517 /* FIXME: wire up interrupts. */
518 i8042_init(NULL/*1*/, NULL/*12*/, 0x60);
519 for(i = 0; i < MAX_FD; i++) {
520 drive_index = drive_get_index(IF_FLOPPY, 0, i);
521 if (drive_index != -1)
522 fd[i] = drives_table[drive_index].bdrv;
523 else
524 fd[i] = NULL;
526 floppy_controller = fdctrl_init(NULL/*6*/, 2, 0, 0x3f0, fd);
527 nvram = m48t59_init(NULL/*8*/, 0, 0x0074, NVRAM_SIZE, 59);
528 sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", RAM_size, boot_devices,
529 KERNEL_LOAD_ADDR, kernel_size,
530 kernel_cmdline,
531 INITRD_LOAD_ADDR, initrd_size,
532 /* XXX: need an option to load a NVRAM image */
534 graphic_width, graphic_height, graphic_depth,
535 (uint8_t *)&nd_table[0].macaddr);
537 fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
538 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
539 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
540 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, hwdef->machine_id);
541 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, KERNEL_LOAD_ADDR);
542 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
543 if (kernel_cmdline) {
544 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
545 pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
546 } else {
547 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
549 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, INITRD_LOAD_ADDR);
550 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
551 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, boot_devices[0]);
552 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
555 enum {
556 sun4u_id = 0,
557 sun4v_id = 64,
558 niagara_id,
561 static const struct hwdef hwdefs[] = {
562 /* Sun4u generic PC-like machine */
564 .default_cpu_model = "TI UltraSparc II",
565 .machine_id = sun4u_id,
566 .prom_addr = 0x1fff0000000ULL,
567 .console_serial_base = 0,
569 /* Sun4v generic PC-like machine */
571 .default_cpu_model = "Sun UltraSparc T1",
572 .machine_id = sun4v_id,
573 .prom_addr = 0x1fff0000000ULL,
574 .console_serial_base = 0,
576 /* Sun4v generic Niagara machine */
578 .default_cpu_model = "Sun UltraSparc T1",
579 .machine_id = niagara_id,
580 .prom_addr = 0xfff0000000ULL,
581 .console_serial_base = 0xfff0c2c000ULL,
585 /* Sun4u hardware initialisation */
586 static void sun4u_init(ram_addr_t RAM_size,
587 const char *boot_devices,
588 const char *kernel_filename, const char *kernel_cmdline,
589 const char *initrd_filename, const char *cpu_model)
591 sun4uv_init(RAM_size, boot_devices, kernel_filename,
592 kernel_cmdline, initrd_filename, cpu_model, &hwdefs[0]);
595 /* Sun4v hardware initialisation */
596 static void sun4v_init(ram_addr_t RAM_size,
597 const char *boot_devices,
598 const char *kernel_filename, const char *kernel_cmdline,
599 const char *initrd_filename, const char *cpu_model)
601 sun4uv_init(RAM_size, boot_devices, kernel_filename,
602 kernel_cmdline, initrd_filename, cpu_model, &hwdefs[1]);
605 /* Niagara hardware initialisation */
606 static void niagara_init(ram_addr_t RAM_size,
607 const char *boot_devices,
608 const char *kernel_filename, const char *kernel_cmdline,
609 const char *initrd_filename, const char *cpu_model)
611 sun4uv_init(RAM_size, boot_devices, kernel_filename,
612 kernel_cmdline, initrd_filename, cpu_model, &hwdefs[2]);
615 static QEMUMachine sun4u_machine = {
616 .name = "sun4u",
617 .desc = "Sun4u platform",
618 .init = sun4u_init,
619 .max_cpus = 1, // XXX for now
620 .is_default = 1,
623 static QEMUMachine sun4v_machine = {
624 .name = "sun4v",
625 .desc = "Sun4v platform",
626 .init = sun4v_init,
627 .max_cpus = 1, // XXX for now
630 static QEMUMachine niagara_machine = {
631 .name = "Niagara",
632 .desc = "Sun4v platform, Niagara",
633 .init = niagara_init,
634 .max_cpus = 1, // XXX for now
637 static void sun4u_machine_init(void)
639 qemu_register_machine(&sun4u_machine);
640 qemu_register_machine(&sun4v_machine);
641 qemu_register_machine(&niagara_machine);
644 machine_init(sun4u_machine_init);