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[qemu/mini2440.git] / hw / sun4u.c
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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 PCIDevice *s;
310 s = pci_register_device(bus, "EBUS", sizeof(*s), devfn, NULL, NULL);
311 pci_config_set_vendor_id(s->config, PCI_VENDOR_ID_SUN);
312 pci_config_set_device_id(s->config, PCI_DEVICE_ID_SUN_EBUS);
313 s->config[0x04] = 0x06; // command = bus master, pci mem
314 s->config[0x05] = 0x00;
315 s->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no error
316 s->config[0x07] = 0x03; // status = medium devsel
317 s->config[0x08] = 0x01; // revision
318 s->config[0x09] = 0x00; // programming i/f
319 pci_config_set_class(s->config, PCI_CLASS_BRIDGE_OTHER);
320 s->config[0x0D] = 0x0a; // latency_timer
321 s->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
323 pci_register_io_region(s, 0, 0x1000000, PCI_ADDRESS_SPACE_MEM,
324 ebus_mmio_mapfunc);
325 pci_register_io_region(s, 1, 0x800000, PCI_ADDRESS_SPACE_MEM,
326 ebus_mmio_mapfunc);
329 static void sun4uv_init(ram_addr_t RAM_size,
330 const char *boot_devices,
331 const char *kernel_filename, const char *kernel_cmdline,
332 const char *initrd_filename, const char *cpu_model,
333 const struct hwdef *hwdef)
335 CPUState *env;
336 char buf[1024];
337 m48t59_t *nvram;
338 int ret, linux_boot;
339 unsigned int i;
340 ram_addr_t ram_offset, prom_offset;
341 long initrd_size, kernel_size;
342 PCIBus *pci_bus, *pci_bus2, *pci_bus3;
343 QEMUBH *bh;
344 qemu_irq *irq;
345 int drive_index;
346 BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
347 BlockDriverState *fd[MAX_FD];
348 void *fw_cfg;
349 ResetData *reset_info;
351 linux_boot = (kernel_filename != NULL);
353 /* init CPUs */
354 if (!cpu_model)
355 cpu_model = hwdef->default_cpu_model;
357 env = cpu_init(cpu_model);
358 if (!env) {
359 fprintf(stderr, "Unable to find Sparc CPU definition\n");
360 exit(1);
362 bh = qemu_bh_new(tick_irq, env);
363 env->tick = ptimer_init(bh);
364 ptimer_set_period(env->tick, 1ULL);
366 bh = qemu_bh_new(stick_irq, env);
367 env->stick = ptimer_init(bh);
368 ptimer_set_period(env->stick, 1ULL);
370 bh = qemu_bh_new(hstick_irq, env);
371 env->hstick = ptimer_init(bh);
372 ptimer_set_period(env->hstick, 1ULL);
374 reset_info = qemu_mallocz(sizeof(ResetData));
375 reset_info->env = env;
376 reset_info->reset_addr = hwdef->prom_addr + 0x40ULL;
377 qemu_register_reset(main_cpu_reset, reset_info);
378 main_cpu_reset(reset_info);
379 // Override warm reset address with cold start address
380 env->pc = hwdef->prom_addr + 0x20ULL;
381 env->npc = env->pc + 4;
383 /* allocate RAM */
384 ram_offset = qemu_ram_alloc(RAM_size);
385 cpu_register_physical_memory(0, RAM_size, ram_offset);
387 prom_offset = qemu_ram_alloc(PROM_SIZE_MAX);
388 cpu_register_physical_memory(hwdef->prom_addr,
389 (PROM_SIZE_MAX + TARGET_PAGE_SIZE) &
390 TARGET_PAGE_MASK,
391 prom_offset | IO_MEM_ROM);
393 if (bios_name == NULL)
394 bios_name = PROM_FILENAME;
395 snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
396 ret = load_elf(buf, hwdef->prom_addr - PROM_VADDR, NULL, NULL, NULL);
397 if (ret < 0) {
398 ret = load_image_targphys(buf, hwdef->prom_addr,
399 (PROM_SIZE_MAX + TARGET_PAGE_SIZE) &
400 TARGET_PAGE_MASK);
401 if (ret < 0) {
402 fprintf(stderr, "qemu: could not load prom '%s'\n",
403 buf);
404 exit(1);
408 kernel_size = 0;
409 initrd_size = 0;
410 if (linux_boot) {
411 /* XXX: put correct offset */
412 kernel_size = load_elf(kernel_filename, 0, NULL, NULL, NULL);
413 if (kernel_size < 0)
414 kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
415 ram_size - KERNEL_LOAD_ADDR);
416 if (kernel_size < 0)
417 kernel_size = load_image_targphys(kernel_filename,
418 KERNEL_LOAD_ADDR,
419 ram_size - KERNEL_LOAD_ADDR);
420 if (kernel_size < 0) {
421 fprintf(stderr, "qemu: could not load kernel '%s'\n",
422 kernel_filename);
423 exit(1);
426 /* load initrd */
427 if (initrd_filename) {
428 initrd_size = load_image_targphys(initrd_filename,
429 INITRD_LOAD_ADDR,
430 ram_size - INITRD_LOAD_ADDR);
431 if (initrd_size < 0) {
432 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
433 initrd_filename);
434 exit(1);
437 if (initrd_size > 0) {
438 for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
439 if (ldl_phys(KERNEL_LOAD_ADDR + i) == 0x48647253) { // HdrS
440 stl_phys(KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
441 stl_phys(KERNEL_LOAD_ADDR + i + 20, initrd_size);
442 break;
447 pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, NULL, &pci_bus2,
448 &pci_bus3);
449 isa_mem_base = VGA_BASE;
450 pci_vga_init(pci_bus, 0, 0);
452 // XXX Should be pci_bus3
453 pci_ebus_init(pci_bus, -1);
455 i = 0;
456 if (hwdef->console_serial_base) {
457 serial_mm_init(hwdef->console_serial_base, 0, NULL, 115200,
458 serial_hds[i], 1);
459 i++;
461 for(; i < MAX_SERIAL_PORTS; i++) {
462 if (serial_hds[i]) {
463 serial_init(serial_io[i], NULL/*serial_irq[i]*/, 115200,
464 serial_hds[i]);
468 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
469 if (parallel_hds[i]) {
470 parallel_init(parallel_io[i], NULL/*parallel_irq[i]*/,
471 parallel_hds[i]);
475 for(i = 0; i < nb_nics; i++)
476 pci_nic_init(pci_bus, &nd_table[i], -1, "ne2k_pci");
478 irq = qemu_allocate_irqs(cpu_set_irq, env, MAX_PILS);
479 if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
480 fprintf(stderr, "qemu: too many IDE bus\n");
481 exit(1);
483 for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
484 drive_index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS,
485 i % MAX_IDE_DEVS);
486 if (drive_index != -1)
487 hd[i] = drives_table[drive_index].bdrv;
488 else
489 hd[i] = NULL;
492 pci_cmd646_ide_init(pci_bus, hd, 1);
494 /* FIXME: wire up interrupts. */
495 i8042_init(NULL/*1*/, NULL/*12*/, 0x60);
496 for(i = 0; i < MAX_FD; i++) {
497 drive_index = drive_get_index(IF_FLOPPY, 0, i);
498 if (drive_index != -1)
499 fd[i] = drives_table[drive_index].bdrv;
500 else
501 fd[i] = NULL;
503 floppy_controller = fdctrl_init(NULL/*6*/, 2, 0, 0x3f0, fd);
504 nvram = m48t59_init(NULL/*8*/, 0, 0x0074, NVRAM_SIZE, 59);
505 sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", RAM_size, boot_devices,
506 KERNEL_LOAD_ADDR, kernel_size,
507 kernel_cmdline,
508 INITRD_LOAD_ADDR, initrd_size,
509 /* XXX: need an option to load a NVRAM image */
511 graphic_width, graphic_height, graphic_depth,
512 (uint8_t *)&nd_table[0].macaddr);
514 fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
515 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
516 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
517 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, hwdef->machine_id);
518 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, KERNEL_LOAD_ADDR);
519 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
520 if (kernel_cmdline) {
521 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
522 pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
523 } else {
524 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
526 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, INITRD_LOAD_ADDR);
527 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
528 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, boot_devices[0]);
529 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
532 enum {
533 sun4u_id = 0,
534 sun4v_id = 64,
535 niagara_id,
538 static const struct hwdef hwdefs[] = {
539 /* Sun4u generic PC-like machine */
541 .default_cpu_model = "TI UltraSparc II",
542 .machine_id = sun4u_id,
543 .prom_addr = 0x1fff0000000ULL,
544 .console_serial_base = 0,
546 /* Sun4v generic PC-like machine */
548 .default_cpu_model = "Sun UltraSparc T1",
549 .machine_id = sun4v_id,
550 .prom_addr = 0x1fff0000000ULL,
551 .console_serial_base = 0,
553 /* Sun4v generic Niagara machine */
555 .default_cpu_model = "Sun UltraSparc T1",
556 .machine_id = niagara_id,
557 .prom_addr = 0xfff0000000ULL,
558 .console_serial_base = 0xfff0c2c000ULL,
562 /* Sun4u hardware initialisation */
563 static void sun4u_init(ram_addr_t RAM_size,
564 const char *boot_devices,
565 const char *kernel_filename, const char *kernel_cmdline,
566 const char *initrd_filename, const char *cpu_model)
568 sun4uv_init(RAM_size, boot_devices, kernel_filename,
569 kernel_cmdline, initrd_filename, cpu_model, &hwdefs[0]);
572 /* Sun4v hardware initialisation */
573 static void sun4v_init(ram_addr_t RAM_size,
574 const char *boot_devices,
575 const char *kernel_filename, const char *kernel_cmdline,
576 const char *initrd_filename, const char *cpu_model)
578 sun4uv_init(RAM_size, boot_devices, kernel_filename,
579 kernel_cmdline, initrd_filename, cpu_model, &hwdefs[1]);
582 /* Niagara hardware initialisation */
583 static void niagara_init(ram_addr_t RAM_size,
584 const char *boot_devices,
585 const char *kernel_filename, const char *kernel_cmdline,
586 const char *initrd_filename, const char *cpu_model)
588 sun4uv_init(RAM_size, boot_devices, kernel_filename,
589 kernel_cmdline, initrd_filename, cpu_model, &hwdefs[2]);
592 QEMUMachine sun4u_machine = {
593 .name = "sun4u",
594 .desc = "Sun4u platform",
595 .init = sun4u_init,
596 .max_cpus = 1, // XXX for now
599 QEMUMachine sun4v_machine = {
600 .name = "sun4v",
601 .desc = "Sun4v platform",
602 .init = sun4v_init,
603 .max_cpus = 1, // XXX for now
606 QEMUMachine niagara_machine = {
607 .name = "Niagara",
608 .desc = "Sun4v platform, Niagara",
609 .init = niagara_init,
610 .max_cpus = 1, // XXX for now