4 * Copyright (c) 2004 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
28 #define PCI_VENDOR_ID 0x00 /* 16 bits */
29 #define PCI_DEVICE_ID 0x02 /* 16 bits */
30 #define PCI_COMMAND 0x04 /* 16 bits */
31 #define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
32 #define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */
33 #define PCI_CLASS_DEVICE 0x0a /* Device class */
34 #define PCI_INTERRUPT_LINE 0x3c /* 8 bits */
35 #define PCI_INTERRUPT_PIN 0x3d /* 8 bits */
36 #define PCI_MIN_GNT 0x3e /* 8 bits */
37 #define PCI_MAX_LAT 0x3f /* 8 bits */
39 /* just used for simpler irq handling. */
40 #define PCI_DEVICES_MAX 64
41 #define PCI_IRQ_WORDS ((PCI_DEVICES_MAX + 31) / 32)
46 void (*set_irq)(PCIDevice *pci_dev, int irq_num, int level);
47 uint32_t config_reg; /* XXX: suppress */
48 openpic_t *openpic; /* XXX: suppress */
49 PCIDevice *devices[256];
52 target_phys_addr_t pci_mem_base;
53 static int pci_irq_index;
54 static uint32_t pci_irq_levels[4][PCI_IRQ_WORDS];
55 static PCIBus *first_bus;
57 static PCIBus *pci_register_bus(void)
60 bus = qemu_mallocz(sizeof(PCIBus));
65 /* -1 for devfn means auto assign */
66 PCIDevice *pci_register_device(PCIBus *bus, const char *name,
67 int instance_size, int devfn,
68 PCIConfigReadFunc *config_read,
69 PCIConfigWriteFunc *config_write)
73 if (pci_irq_index >= PCI_DEVICES_MAX)
77 for(devfn = bus->devfn_min ; devfn < 256; devfn += 8) {
78 if (!bus->devices[devfn])
84 pci_dev = qemu_mallocz(instance_size);
88 pci_dev->devfn = devfn;
89 pstrcpy(pci_dev->name, sizeof(pci_dev->name), name);
92 config_read = pci_default_read_config;
94 config_write = pci_default_write_config;
95 pci_dev->config_read = config_read;
96 pci_dev->config_write = config_write;
97 pci_dev->irq_index = pci_irq_index++;
98 bus->devices[devfn] = pci_dev;
102 void pci_register_io_region(PCIDevice *pci_dev, int region_num,
103 uint32_t size, int type,
104 PCIMapIORegionFunc *map_func)
108 if ((unsigned int)region_num >= PCI_NUM_REGIONS)
110 r = &pci_dev->io_regions[region_num];
114 r->map_func = map_func;
117 static void pci_addr_writel(void* opaque, uint32_t addr, uint32_t val)
123 static uint32_t pci_addr_readl(void* opaque, uint32_t addr)
126 return s->config_reg;
129 static void pci_update_mappings(PCIDevice *d)
133 uint32_t last_addr, new_addr, config_ofs;
135 cmd = le16_to_cpu(*(uint16_t *)(d->config + PCI_COMMAND));
136 for(i = 0; i < PCI_NUM_REGIONS; i++) {
137 r = &d->io_regions[i];
138 if (i == PCI_ROM_SLOT) {
141 config_ofs = 0x10 + i * 4;
144 if (r->type & PCI_ADDRESS_SPACE_IO) {
145 if (cmd & PCI_COMMAND_IO) {
146 new_addr = le32_to_cpu(*(uint32_t *)(d->config +
148 new_addr = new_addr & ~(r->size - 1);
149 last_addr = new_addr + r->size - 1;
150 /* NOTE: we have only 64K ioports on PC */
151 if (last_addr <= new_addr || new_addr == 0 ||
152 last_addr >= 0x10000) {
159 if (cmd & PCI_COMMAND_MEMORY) {
160 new_addr = le32_to_cpu(*(uint32_t *)(d->config +
162 /* the ROM slot has a specific enable bit */
163 if (i == PCI_ROM_SLOT && !(new_addr & 1))
165 new_addr = new_addr & ~(r->size - 1);
166 last_addr = new_addr + r->size - 1;
167 /* NOTE: we do not support wrapping */
168 /* XXX: as we cannot support really dynamic
169 mappings, we handle specific values as invalid
171 if (last_addr <= new_addr || new_addr == 0 ||
180 /* now do the real mapping */
181 if (new_addr != r->addr) {
183 if (r->type & PCI_ADDRESS_SPACE_IO) {
185 /* NOTE: specific hack for IDE in PC case:
186 only one byte must be mapped. */
187 class = d->config[0x0a] | (d->config[0x0b] << 8);
188 if (class == 0x0101 && r->size == 4) {
189 isa_unassign_ioport(r->addr + 2, 1);
191 isa_unassign_ioport(r->addr, r->size);
194 cpu_register_physical_memory(r->addr + pci_mem_base,
201 r->map_func(d, i, r->addr, r->size, r->type);
208 uint32_t pci_default_read_config(PCIDevice *d,
209 uint32_t address, int len)
214 val = d->config[address];
217 val = le16_to_cpu(*(uint16_t *)(d->config + address));
221 val = le32_to_cpu(*(uint32_t *)(d->config + address));
227 void pci_default_write_config(PCIDevice *d,
228 uint32_t address, uint32_t val, int len)
233 if (len == 4 && ((address >= 0x10 && address < 0x10 + 4 * 6) ||
234 (address >= 0x30 && address < 0x34))) {
238 if ( address >= 0x30 ) {
241 reg = (address - 0x10) >> 2;
243 r = &d->io_regions[reg];
246 /* compute the stored value */
247 if (reg == PCI_ROM_SLOT) {
248 /* keep ROM enable bit */
249 val &= (~(r->size - 1)) | 1;
251 val &= ~(r->size - 1);
254 *(uint32_t *)(d->config + address) = cpu_to_le32(val);
255 pci_update_mappings(d);
259 /* not efficient, but simple */
261 for(i = 0; i < len; i++) {
262 /* default read/write accesses */
263 switch(d->config[0x0e]) {
276 case 0x10 ... 0x27: /* base */
277 case 0x30 ... 0x33: /* rom */
298 case 0x38 ... 0x3b: /* rom */
309 d->config[addr] = val;
316 if (end > PCI_COMMAND && address < (PCI_COMMAND + 2)) {
317 /* if the command register is modified, we must modify the mappings */
318 pci_update_mappings(d);
322 static void pci_data_write(void *opaque, uint32_t addr,
323 uint32_t val, int len)
327 int config_addr, bus_num;
329 #if defined(DEBUG_PCI) && 0
330 printf("pci_data_write: addr=%08x val=%08x len=%d\n",
331 s->config_reg, val, len);
333 if (!(s->config_reg & (1 << 31))) {
336 if ((s->config_reg & 0x3) != 0) {
339 bus_num = (s->config_reg >> 16) & 0xff;
342 pci_dev = s->devices[(s->config_reg >> 8) & 0xff];
345 config_addr = (s->config_reg & 0xfc) | (addr & 3);
346 #if defined(DEBUG_PCI)
347 printf("pci_config_write: %s: addr=%02x val=%08x len=%d\n",
348 pci_dev->name, config_addr, val, len);
350 pci_dev->config_write(pci_dev, config_addr, val, len);
353 static uint32_t pci_data_read(void *opaque, uint32_t addr,
358 int config_addr, bus_num;
361 if (!(s->config_reg & (1 << 31)))
363 if ((s->config_reg & 0x3) != 0)
365 bus_num = (s->config_reg >> 16) & 0xff;
368 pci_dev = s->devices[(s->config_reg >> 8) & 0xff];
385 config_addr = (s->config_reg & 0xfc) | (addr & 3);
386 val = pci_dev->config_read(pci_dev, config_addr, len);
387 #if defined(DEBUG_PCI)
388 printf("pci_config_read: %s: addr=%02x val=%08x len=%d\n",
389 pci_dev->name, config_addr, val, len);
392 #if defined(DEBUG_PCI) && 0
393 printf("pci_data_read: addr=%08x val=%08x len=%d\n",
394 s->config_reg, val, len);
399 static void pci_data_writeb(void* opaque, uint32_t addr, uint32_t val)
401 pci_data_write(opaque, addr, val, 1);
404 static void pci_data_writew(void* opaque, uint32_t addr, uint32_t val)
406 pci_data_write(opaque, addr, val, 2);
409 static void pci_data_writel(void* opaque, uint32_t addr, uint32_t val)
411 pci_data_write(opaque, addr, val, 4);
414 static uint32_t pci_data_readb(void* opaque, uint32_t addr)
416 return pci_data_read(opaque, addr, 1);
419 static uint32_t pci_data_readw(void* opaque, uint32_t addr)
421 return pci_data_read(opaque, addr, 2);
424 static uint32_t pci_data_readl(void* opaque, uint32_t addr)
426 return pci_data_read(opaque, addr, 4);
429 /* i440FX PCI bridge */
431 static void piix3_set_irq(PCIDevice *pci_dev, int irq_num, int level);
433 PCIBus *i440fx_init(void)
438 s = pci_register_bus();
439 s->set_irq = piix3_set_irq;
441 register_ioport_write(0xcf8, 4, 4, pci_addr_writel, s);
442 register_ioport_read(0xcf8, 4, 4, pci_addr_readl, s);
444 register_ioport_write(0xcfc, 4, 1, pci_data_writeb, s);
445 register_ioport_write(0xcfc, 4, 2, pci_data_writew, s);
446 register_ioport_write(0xcfc, 4, 4, pci_data_writel, s);
447 register_ioport_read(0xcfc, 4, 1, pci_data_readb, s);
448 register_ioport_read(0xcfc, 4, 2, pci_data_readw, s);
449 register_ioport_read(0xcfc, 4, 4, pci_data_readl, s);
451 d = pci_register_device(s, "i440FX", sizeof(PCIDevice), 0,
454 d->config[0x00] = 0x86; // vendor_id
455 d->config[0x01] = 0x80;
456 d->config[0x02] = 0x37; // device_id
457 d->config[0x03] = 0x12;
458 d->config[0x08] = 0x02; // revision
459 d->config[0x0a] = 0x00; // class_sub = host2pci
460 d->config[0x0b] = 0x06; // class_base = PCI_bridge
461 d->config[0x0e] = 0x00; // header_type
465 /* PIIX3 PCI to ISA bridge */
467 typedef struct PIIX3State {
471 PIIX3State *piix3_state;
473 /* return the global irq number corresponding to a given device irq
474 pin. We could also use the bus number to have a more precise
476 static inline int pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num)
479 slot_addend = (pci_dev->devfn >> 3);
480 return (irq_num + slot_addend) & 3;
483 static void piix3_set_irq(PCIDevice *pci_dev, int irq_num, int level)
485 int irq_index, shift, pic_irq, pic_level;
488 irq_num = pci_slot_get_pirq(pci_dev, irq_num);
489 irq_index = pci_dev->irq_index;
490 p = &pci_irq_levels[irq_num][irq_index >> 5];
491 shift = (irq_index & 0x1f);
492 *p = (*p & ~(1 << shift)) | (level << shift);
494 /* now we change the pic irq level according to the piix irq mappings */
495 pic_irq = piix3_state->dev.config[0x60 + irq_num];
497 /* the pic level is the logical OR of all the PCI irqs mapped
500 #if (PCI_IRQ_WORDS == 2)
501 pic_level = ((pci_irq_levels[irq_num][0] |
502 pci_irq_levels[irq_num][1]) != 0);
507 for(i = 0; i < PCI_IRQ_WORDS; i++) {
508 if (pci_irq_levels[irq_num][i]) {
515 pic_set_irq(pic_irq, pic_level);
519 static void piix3_reset(PIIX3State *d)
521 uint8_t *pci_conf = d->dev.config;
523 pci_conf[0x04] = 0x07; // master, memory and I/O
524 pci_conf[0x05] = 0x00;
525 pci_conf[0x06] = 0x00;
526 pci_conf[0x07] = 0x02; // PCI_status_devsel_medium
527 pci_conf[0x4c] = 0x4d;
528 pci_conf[0x4e] = 0x03;
529 pci_conf[0x4f] = 0x00;
530 pci_conf[0x60] = 0x80;
531 pci_conf[0x69] = 0x02;
532 pci_conf[0x70] = 0x80;
533 pci_conf[0x76] = 0x0c;
534 pci_conf[0x77] = 0x0c;
535 pci_conf[0x78] = 0x02;
536 pci_conf[0x79] = 0x00;
537 pci_conf[0x80] = 0x00;
538 pci_conf[0x82] = 0x00;
539 pci_conf[0xa0] = 0x08;
540 pci_conf[0xa0] = 0x08;
541 pci_conf[0xa2] = 0x00;
542 pci_conf[0xa3] = 0x00;
543 pci_conf[0xa4] = 0x00;
544 pci_conf[0xa5] = 0x00;
545 pci_conf[0xa6] = 0x00;
546 pci_conf[0xa7] = 0x00;
547 pci_conf[0xa8] = 0x0f;
548 pci_conf[0xaa] = 0x00;
549 pci_conf[0xab] = 0x00;
550 pci_conf[0xac] = 0x00;
551 pci_conf[0xae] = 0x00;
554 void piix3_init(PCIBus *bus)
559 d = (PIIX3State *)pci_register_device(bus, "PIIX3", sizeof(PIIX3State),
562 pci_conf = d->dev.config;
564 pci_conf[0x00] = 0x86; // Intel
565 pci_conf[0x01] = 0x80;
566 pci_conf[0x02] = 0x00; // 82371SB PIIX3 PCI-to-ISA bridge (Step A1)
567 pci_conf[0x03] = 0x70;
568 pci_conf[0x0a] = 0x01; // class_sub = PCI_ISA
569 pci_conf[0x0b] = 0x06; // class_base = PCI_bridge
570 pci_conf[0x0e] = 0x80; // header_type = PCI_multifunction, generic
577 static inline void set_config(PCIBus *s, target_phys_addr_t addr)
581 for(i = 0; i < 11; i++) {
582 if ((addr & (1 << (11 + i))) != 0)
585 devfn = ((addr >> 8) & 7) | (i << 3);
586 s->config_reg = 0x80000000 | (addr & 0xfc) | (devfn << 8);
589 static void PPC_PCIIO_writeb (void *opaque, target_phys_addr_t addr, uint32_t val)
593 pci_data_write(s, addr, val, 1);
596 static void PPC_PCIIO_writew (void *opaque, target_phys_addr_t addr, uint32_t val)
600 #ifdef TARGET_WORDS_BIGENDIAN
603 pci_data_write(s, addr, val, 2);
606 static void PPC_PCIIO_writel (void *opaque, target_phys_addr_t addr, uint32_t val)
610 #ifdef TARGET_WORDS_BIGENDIAN
613 pci_data_write(s, addr, val, 4);
616 static uint32_t PPC_PCIIO_readb (void *opaque, target_phys_addr_t addr)
621 val = pci_data_read(s, addr, 1);
625 static uint32_t PPC_PCIIO_readw (void *opaque, target_phys_addr_t addr)
630 val = pci_data_read(s, addr, 2);
631 #ifdef TARGET_WORDS_BIGENDIAN
637 static uint32_t PPC_PCIIO_readl (void *opaque, target_phys_addr_t addr)
642 val = pci_data_read(s, addr, 4);
643 #ifdef TARGET_WORDS_BIGENDIAN
649 static CPUWriteMemoryFunc *PPC_PCIIO_write[] = {
655 static CPUReadMemoryFunc *PPC_PCIIO_read[] = {
661 static void prep_set_irq(PCIDevice *d, int irq_num, int level)
663 /* XXX: we do not simulate the hardware - we rely on the BIOS to
664 set correctly for irq line field */
665 pic_set_irq(d->config[PCI_INTERRUPT_LINE], level);
668 PCIBus *pci_prep_init(void)
674 s = pci_register_bus();
675 s->set_irq = prep_set_irq;
677 PPC_io_memory = cpu_register_io_memory(0, PPC_PCIIO_read,
679 cpu_register_physical_memory(0x80800000, 0x00400000, PPC_io_memory);
681 d = pci_register_device(s, "PREP PCI Bridge", sizeof(PCIDevice), 0,
684 /* XXX: put correct IDs */
685 d->config[0x00] = 0x11; // vendor_id
686 d->config[0x01] = 0x10;
687 d->config[0x02] = 0x26; // device_id
688 d->config[0x03] = 0x00;
689 d->config[0x08] = 0x02; // revision
690 d->config[0x0a] = 0x04; // class_sub = pci2pci
691 d->config[0x0b] = 0x06; // class_base = PCI_bridge
692 d->config[0x0e] = 0x01; // header_type
700 /* Grackle PCI host */
701 static void pci_grackle_config_writel (void *opaque, target_phys_addr_t addr,
705 #ifdef TARGET_WORDS_BIGENDIAN
711 static uint32_t pci_grackle_config_readl (void *opaque, target_phys_addr_t addr)
717 #ifdef TARGET_WORDS_BIGENDIAN
723 static CPUWriteMemoryFunc *pci_grackle_config_write[] = {
724 &pci_grackle_config_writel,
725 &pci_grackle_config_writel,
726 &pci_grackle_config_writel,
729 static CPUReadMemoryFunc *pci_grackle_config_read[] = {
730 &pci_grackle_config_readl,
731 &pci_grackle_config_readl,
732 &pci_grackle_config_readl,
735 static void pci_grackle_writeb (void *opaque, target_phys_addr_t addr,
739 pci_data_write(s, addr, val, 1);
742 static void pci_grackle_writew (void *opaque, target_phys_addr_t addr,
746 #ifdef TARGET_WORDS_BIGENDIAN
749 pci_data_write(s, addr, val, 2);
752 static void pci_grackle_writel (void *opaque, target_phys_addr_t addr,
756 #ifdef TARGET_WORDS_BIGENDIAN
759 pci_data_write(s, addr, val, 4);
762 static uint32_t pci_grackle_readb (void *opaque, target_phys_addr_t addr)
766 val = pci_data_read(s, addr, 1);
770 static uint32_t pci_grackle_readw (void *opaque, target_phys_addr_t addr)
774 val = pci_data_read(s, addr, 2);
775 #ifdef TARGET_WORDS_BIGENDIAN
781 static uint32_t pci_grackle_readl (void *opaque, target_phys_addr_t addr)
786 val = pci_data_read(s, addr, 4);
787 #ifdef TARGET_WORDS_BIGENDIAN
793 static CPUWriteMemoryFunc *pci_grackle_write[] = {
799 static CPUReadMemoryFunc *pci_grackle_read[] = {
806 /* Uninorth PCI host (for all Mac99 and newer machines */
807 static void pci_unin_main_config_writel (void *opaque, target_phys_addr_t addr,
813 #ifdef TARGET_WORDS_BIGENDIAN
817 for (i = 11; i < 32; i++) {
818 if ((val & (1 << i)) != 0)
822 s->config_reg = 0x80000000 | (1 << 16) | (val & 0x7FC) | (i << 11);
824 s->config_reg = 0x80000000 | (0 << 16) | (val & 0x7FC) | (i << 11);
828 static uint32_t pci_unin_main_config_readl (void *opaque,
829 target_phys_addr_t addr)
835 devfn = (s->config_reg >> 8) & 0xFF;
836 val = (1 << (devfn >> 3)) | ((devfn & 0x07) << 8) | (s->config_reg & 0xFC);
837 #ifdef TARGET_WORDS_BIGENDIAN
844 static CPUWriteMemoryFunc *pci_unin_main_config_write[] = {
845 &pci_unin_main_config_writel,
846 &pci_unin_main_config_writel,
847 &pci_unin_main_config_writel,
850 static CPUReadMemoryFunc *pci_unin_main_config_read[] = {
851 &pci_unin_main_config_readl,
852 &pci_unin_main_config_readl,
853 &pci_unin_main_config_readl,
856 static void pci_unin_main_writeb (void *opaque, target_phys_addr_t addr,
860 pci_data_write(s, addr & 7, val, 1);
863 static void pci_unin_main_writew (void *opaque, target_phys_addr_t addr,
867 #ifdef TARGET_WORDS_BIGENDIAN
870 pci_data_write(s, addr & 7, val, 2);
873 static void pci_unin_main_writel (void *opaque, target_phys_addr_t addr,
877 #ifdef TARGET_WORDS_BIGENDIAN
880 pci_data_write(s, addr & 7, val, 4);
883 static uint32_t pci_unin_main_readb (void *opaque, target_phys_addr_t addr)
888 val = pci_data_read(s, addr & 7, 1);
893 static uint32_t pci_unin_main_readw (void *opaque, target_phys_addr_t addr)
898 val = pci_data_read(s, addr & 7, 2);
899 #ifdef TARGET_WORDS_BIGENDIAN
906 static uint32_t pci_unin_main_readl (void *opaque, target_phys_addr_t addr)
911 val = pci_data_read(s, addr, 4);
912 #ifdef TARGET_WORDS_BIGENDIAN
919 static CPUWriteMemoryFunc *pci_unin_main_write[] = {
920 &pci_unin_main_writeb,
921 &pci_unin_main_writew,
922 &pci_unin_main_writel,
925 static CPUReadMemoryFunc *pci_unin_main_read[] = {
926 &pci_unin_main_readb,
927 &pci_unin_main_readw,
928 &pci_unin_main_readl,
933 static void pci_unin_config_writel (void *opaque, target_phys_addr_t addr,
938 #ifdef TARGET_WORDS_BIGENDIAN
941 s->config_reg = 0x80000000 | (val & ~0x00000001);
944 static uint32_t pci_unin_config_readl (void *opaque,
945 target_phys_addr_t addr)
950 val = (s->config_reg | 0x00000001) & ~0x80000000;
951 #ifdef TARGET_WORDS_BIGENDIAN
958 static CPUWriteMemoryFunc *pci_unin_config_write[] = {
959 &pci_unin_config_writel,
960 &pci_unin_config_writel,
961 &pci_unin_config_writel,
964 static CPUReadMemoryFunc *pci_unin_config_read[] = {
965 &pci_unin_config_readl,
966 &pci_unin_config_readl,
967 &pci_unin_config_readl,
970 static void pci_unin_writeb (void *opaque, target_phys_addr_t addr,
974 pci_data_write(s, addr & 3, val, 1);
977 static void pci_unin_writew (void *opaque, target_phys_addr_t addr,
981 #ifdef TARGET_WORDS_BIGENDIAN
984 pci_data_write(s, addr & 3, val, 2);
987 static void pci_unin_writel (void *opaque, target_phys_addr_t addr,
991 #ifdef TARGET_WORDS_BIGENDIAN
994 pci_data_write(s, addr & 3, val, 4);
997 static uint32_t pci_unin_readb (void *opaque, target_phys_addr_t addr)
1002 val = pci_data_read(s, addr & 3, 1);
1007 static uint32_t pci_unin_readw (void *opaque, target_phys_addr_t addr)
1012 val = pci_data_read(s, addr & 3, 2);
1013 #ifdef TARGET_WORDS_BIGENDIAN
1020 static uint32_t pci_unin_readl (void *opaque, target_phys_addr_t addr)
1025 val = pci_data_read(s, addr & 3, 4);
1026 #ifdef TARGET_WORDS_BIGENDIAN
1033 static CPUWriteMemoryFunc *pci_unin_write[] = {
1039 static CPUReadMemoryFunc *pci_unin_read[] = {
1046 static void pmac_set_irq(PCIDevice *d, int irq_num, int level)
1049 /* XXX: we do not simulate the hardware - we rely on the BIOS to
1050 set correctly for irq line field */
1051 openpic = d->bus->openpic;
1054 openpic_set_irq(openpic, d->config[PCI_INTERRUPT_LINE], level);
1058 void pci_pmac_set_openpic(PCIBus *bus, openpic_t *openpic)
1060 bus->openpic = openpic;
1063 PCIBus *pci_pmac_init(void)
1067 int pci_mem_config, pci_mem_data;
1069 /* Use values found on a real PowerMac */
1070 /* Uninorth main bus */
1071 s = pci_register_bus();
1072 s->set_irq = pmac_set_irq;
1074 pci_mem_config = cpu_register_io_memory(0, pci_unin_main_config_read,
1075 pci_unin_main_config_write, s);
1076 pci_mem_data = cpu_register_io_memory(0, pci_unin_main_read,
1077 pci_unin_main_write, s);
1078 cpu_register_physical_memory(0xf2800000, 0x1000, pci_mem_config);
1079 cpu_register_physical_memory(0xf2c00000, 0x1000, pci_mem_data);
1080 s->devfn_min = 11 << 3;
1081 d = pci_register_device(s, "Uni-north main", sizeof(PCIDevice),
1082 11 << 3, NULL, NULL);
1083 d->config[0x00] = 0x6b; // vendor_id : Apple
1084 d->config[0x01] = 0x10;
1085 d->config[0x02] = 0x1F; // device_id
1086 d->config[0x03] = 0x00;
1087 d->config[0x08] = 0x00; // revision
1088 d->config[0x0A] = 0x00; // class_sub = pci host
1089 d->config[0x0B] = 0x06; // class_base = PCI_bridge
1090 d->config[0x0C] = 0x08; // cache_line_size
1091 d->config[0x0D] = 0x10; // latency_timer
1092 d->config[0x0E] = 0x00; // header_type
1093 d->config[0x34] = 0x00; // capabilities_pointer
1095 #if 0 // XXX: not activated as PPC BIOS doesn't handle mutiple buses properly
1096 /* pci-to-pci bridge */
1097 d = pci_register_device("Uni-north bridge", sizeof(PCIDevice), 0, 13 << 3,
1099 d->config[0x00] = 0x11; // vendor_id : TI
1100 d->config[0x01] = 0x10;
1101 d->config[0x02] = 0x26; // device_id
1102 d->config[0x03] = 0x00;
1103 d->config[0x08] = 0x05; // revision
1104 d->config[0x0A] = 0x04; // class_sub = pci2pci
1105 d->config[0x0B] = 0x06; // class_base = PCI_bridge
1106 d->config[0x0C] = 0x08; // cache_line_size
1107 d->config[0x0D] = 0x20; // latency_timer
1108 d->config[0x0E] = 0x01; // header_type
1110 d->config[0x18] = 0x01; // primary_bus
1111 d->config[0x19] = 0x02; // secondary_bus
1112 d->config[0x1A] = 0x02; // subordinate_bus
1113 d->config[0x1B] = 0x20; // secondary_latency_timer
1114 d->config[0x1C] = 0x11; // io_base
1115 d->config[0x1D] = 0x01; // io_limit
1116 d->config[0x20] = 0x00; // memory_base
1117 d->config[0x21] = 0x80;
1118 d->config[0x22] = 0x00; // memory_limit
1119 d->config[0x23] = 0x80;
1120 d->config[0x24] = 0x01; // prefetchable_memory_base
1121 d->config[0x25] = 0x80;
1122 d->config[0x26] = 0xF1; // prefectchable_memory_limit
1123 d->config[0x27] = 0x7F;
1124 // d->config[0x34] = 0xdc // capabilities_pointer
1126 #if 0 // XXX: not needed for now
1127 /* Uninorth AGP bus */
1129 pci_mem_config = cpu_register_io_memory(0, pci_unin_config_read,
1130 pci_unin_config_write, s);
1131 pci_mem_data = cpu_register_io_memory(0, pci_unin_read,
1133 cpu_register_physical_memory(0xf0800000, 0x1000, pci_mem_config);
1134 cpu_register_physical_memory(0xf0c00000, 0x1000, pci_mem_data);
1136 d = pci_register_device("Uni-north AGP", sizeof(PCIDevice), 0, 11 << 3,
1138 d->config[0x00] = 0x6b; // vendor_id : Apple
1139 d->config[0x01] = 0x10;
1140 d->config[0x02] = 0x20; // device_id
1141 d->config[0x03] = 0x00;
1142 d->config[0x08] = 0x00; // revision
1143 d->config[0x0A] = 0x00; // class_sub = pci host
1144 d->config[0x0B] = 0x06; // class_base = PCI_bridge
1145 d->config[0x0C] = 0x08; // cache_line_size
1146 d->config[0x0D] = 0x10; // latency_timer
1147 d->config[0x0E] = 0x00; // header_type
1148 // d->config[0x34] = 0x80; // capabilities_pointer
1151 #if 0 // XXX: not needed for now
1152 /* Uninorth internal bus */
1154 pci_mem_config = cpu_register_io_memory(0, pci_unin_config_read,
1155 pci_unin_config_write, s);
1156 pci_mem_data = cpu_register_io_memory(0, pci_unin_read,
1158 cpu_register_physical_memory(0xf4800000, 0x1000, pci_mem_config);
1159 cpu_register_physical_memory(0xf4c00000, 0x1000, pci_mem_data);
1161 d = pci_register_device("Uni-north internal", sizeof(PCIDevice),
1162 3, 11 << 3, NULL, NULL);
1163 d->config[0x00] = 0x6b; // vendor_id : Apple
1164 d->config[0x01] = 0x10;
1165 d->config[0x02] = 0x1E; // device_id
1166 d->config[0x03] = 0x00;
1167 d->config[0x08] = 0x00; // revision
1168 d->config[0x0A] = 0x00; // class_sub = pci host
1169 d->config[0x0B] = 0x06; // class_base = PCI_bridge
1170 d->config[0x0C] = 0x08; // cache_line_size
1171 d->config[0x0D] = 0x10; // latency_timer
1172 d->config[0x0E] = 0x00; // header_type
1173 d->config[0x34] = 0x00; // capabilities_pointer
1177 /* same values as PearPC - check this */
1178 d->config[0x00] = 0x11; // vendor_id
1179 d->config[0x01] = 0x10;
1180 d->config[0x02] = 0x26; // device_id
1181 d->config[0x03] = 0x00;
1182 d->config[0x08] = 0x02; // revision
1183 d->config[0x0a] = 0x04; // class_sub = pci2pci
1184 d->config[0x0b] = 0x06; // class_base = PCI_bridge
1185 d->config[0x0e] = 0x01; // header_type
1187 d->config[0x18] = 0x0; // primary_bus
1188 d->config[0x19] = 0x1; // secondary_bus
1189 d->config[0x1a] = 0x1; // subordinate_bus
1190 d->config[0x1c] = 0x10; // io_base
1191 d->config[0x1d] = 0x20; // io_limit
1193 d->config[0x20] = 0x80; // memory_base
1194 d->config[0x21] = 0x80;
1195 d->config[0x22] = 0x90; // memory_limit
1196 d->config[0x23] = 0x80;
1198 d->config[0x24] = 0x00; // prefetchable_memory_base
1199 d->config[0x25] = 0x84;
1200 d->config[0x26] = 0x00; // prefetchable_memory_limit
1201 d->config[0x27] = 0x85;
1206 /***********************************************************/
1207 /* generic PCI irq support */
1209 /* 0 <= irq_num <= 3. level must be 0 or 1 */
1210 void pci_set_irq(PCIDevice *pci_dev, int irq_num, int level)
1212 PCIBus *bus = pci_dev->bus;
1213 bus->set_irq(pci_dev, irq_num, level);
1216 /***********************************************************/
1217 /* monitor info on PCI */
1219 static void pci_info_device(PCIDevice *d)
1224 printf(" Bus %2d, device %3d, function %d:\n",
1225 d->bus->bus_num, d->devfn >> 3, d->devfn & 7);
1226 class = le16_to_cpu(*((uint16_t *)(d->config + PCI_CLASS_DEVICE)));
1230 printf("IDE controller");
1233 printf("Ethernet controller");
1236 printf("VGA controller");
1239 printf("Class %04x", class);
1242 printf(": PCI device %04x:%04x\n",
1243 le16_to_cpu(*((uint16_t *)(d->config + PCI_VENDOR_ID))),
1244 le16_to_cpu(*((uint16_t *)(d->config + PCI_DEVICE_ID))));
1246 if (d->config[PCI_INTERRUPT_PIN] != 0) {
1247 printf(" IRQ %d.\n", d->config[PCI_INTERRUPT_LINE]);
1249 for(i = 0;i < PCI_NUM_REGIONS; i++) {
1250 r = &d->io_regions[i];
1252 printf(" BAR%d: ", i);
1253 if (r->type & PCI_ADDRESS_SPACE_IO) {
1254 printf("I/O at 0x%04x [0x%04x].\n",
1255 r->addr, r->addr + r->size - 1);
1257 printf("32 bit memory at 0x%08x [0x%08x].\n",
1258 r->addr, r->addr + r->size - 1);
1266 PCIBus *bus = first_bus;
1271 for(devfn = 0; devfn < 256; devfn++) {
1272 d = bus->devices[devfn];
1279 /***********************************************************/
1280 /* XXX: the following should be moved to the PC BIOS */
1282 static __attribute__((unused)) uint32_t isa_inb(uint32_t addr)
1284 return cpu_inb(cpu_single_env, addr);
1287 static void isa_outb(uint32_t val, uint32_t addr)
1289 cpu_outb(cpu_single_env, addr, val);
1292 static __attribute__((unused)) uint32_t isa_inw(uint32_t addr)
1294 return cpu_inw(cpu_single_env, addr);
1297 static __attribute__((unused)) void isa_outw(uint32_t val, uint32_t addr)
1299 cpu_outw(cpu_single_env, addr, val);
1302 static __attribute__((unused)) uint32_t isa_inl(uint32_t addr)
1304 return cpu_inl(cpu_single_env, addr);
1307 static __attribute__((unused)) void isa_outl(uint32_t val, uint32_t addr)
1309 cpu_outl(cpu_single_env, addr, val);
1312 static void pci_config_writel(PCIDevice *d, uint32_t addr, uint32_t val)
1315 s->config_reg = 0x80000000 | (s->bus_num << 16) |
1316 (d->devfn << 8) | addr;
1317 pci_data_write(s, 0, val, 4);
1320 static void pci_config_writew(PCIDevice *d, uint32_t addr, uint32_t val)
1323 s->config_reg = 0x80000000 | (s->bus_num << 16) |
1324 (d->devfn << 8) | (addr & ~3);
1325 pci_data_write(s, addr & 3, val, 2);
1328 static void pci_config_writeb(PCIDevice *d, uint32_t addr, uint32_t val)
1331 s->config_reg = 0x80000000 | (s->bus_num << 16) |
1332 (d->devfn << 8) | (addr & ~3);
1333 pci_data_write(s, addr & 3, val, 1);
1336 static __attribute__((unused)) uint32_t pci_config_readl(PCIDevice *d, uint32_t addr)
1339 s->config_reg = 0x80000000 | (s->bus_num << 16) |
1340 (d->devfn << 8) | addr;
1341 return pci_data_read(s, 0, 4);
1344 static uint32_t pci_config_readw(PCIDevice *d, uint32_t addr)
1347 s->config_reg = 0x80000000 | (s->bus_num << 16) |
1348 (d->devfn << 8) | (addr & ~3);
1349 return pci_data_read(s, addr & 3, 2);
1352 static uint32_t pci_config_readb(PCIDevice *d, uint32_t addr)
1355 s->config_reg = 0x80000000 | (s->bus_num << 16) |
1356 (d->devfn << 8) | (addr & ~3);
1357 return pci_data_read(s, addr & 3, 1);
1360 static uint32_t pci_bios_io_addr;
1361 static uint32_t pci_bios_mem_addr;
1362 /* host irqs corresponding to PCI irqs A-D */
1363 static uint8_t pci_irqs[4] = { 11, 9, 11, 9 };
1365 static void pci_set_io_region_addr(PCIDevice *d, int region_num, uint32_t addr)
1371 if ( region_num == PCI_ROM_SLOT ) {
1374 ofs = 0x10 + region_num * 4;
1377 pci_config_writel(d, ofs, addr);
1378 r = &d->io_regions[region_num];
1380 /* enable memory mappings */
1381 cmd = pci_config_readw(d, PCI_COMMAND);
1382 if ( region_num == PCI_ROM_SLOT )
1384 else if (r->type & PCI_ADDRESS_SPACE_IO)
1388 pci_config_writew(d, PCI_COMMAND, cmd);
1391 static void pci_bios_init_device(PCIDevice *d)
1396 int i, pin, pic_irq, vendor_id, device_id;
1398 class = pci_config_readw(d, PCI_CLASS_DEVICE);
1399 vendor_id = pci_config_readw(d, PCI_VENDOR_ID);
1400 device_id = pci_config_readw(d, PCI_DEVICE_ID);
1403 if (vendor_id == 0x8086 && device_id == 0x7010) {
1405 pci_config_writew(d, 0x40, 0x8000); // enable IDE0
1406 pci_config_writew(d, 0x42, 0x8000); // enable IDE1
1409 /* IDE: we map it as in ISA mode */
1410 pci_set_io_region_addr(d, 0, 0x1f0);
1411 pci_set_io_region_addr(d, 1, 0x3f4);
1412 pci_set_io_region_addr(d, 2, 0x170);
1413 pci_set_io_region_addr(d, 3, 0x374);
1417 if (vendor_id != 0x1234)
1419 /* VGA: map frame buffer to default Bochs VBE address */
1420 pci_set_io_region_addr(d, 0, 0xE0000000);
1424 vendor_id = pci_config_readw(d, PCI_VENDOR_ID);
1425 device_id = pci_config_readw(d, PCI_DEVICE_ID);
1426 if (vendor_id == 0x1014) {
1428 if (device_id == 0x0046 || device_id == 0xFFFF) {
1430 pci_set_io_region_addr(d, 0, 0x80800000 + 0x00040000);
1435 if (vendor_id == 0x0106b &&
1436 (device_id == 0x0017 || device_id == 0x0022)) {
1438 pci_set_io_region_addr(d, 0, 0x80800000);
1443 /* default memory mappings */
1444 for(i = 0; i < PCI_NUM_REGIONS; i++) {
1445 r = &d->io_regions[i];
1447 if (r->type & PCI_ADDRESS_SPACE_IO)
1448 paddr = &pci_bios_io_addr;
1450 paddr = &pci_bios_mem_addr;
1451 *paddr = (*paddr + r->size - 1) & ~(r->size - 1);
1452 pci_set_io_region_addr(d, i, *paddr);
1459 /* map the interrupt */
1460 pin = pci_config_readb(d, PCI_INTERRUPT_PIN);
1462 pin = pci_slot_get_pirq(d, pin - 1);
1463 pic_irq = pci_irqs[pin];
1464 pci_config_writeb(d, PCI_INTERRUPT_LINE, pic_irq);
1469 * This function initializes the PCI devices as a normal PCI BIOS
1470 * would do. It is provided just in case the BIOS has no support for
1473 void pci_bios_init(void)
1480 pci_bios_io_addr = 0xc000;
1481 pci_bios_mem_addr = 0xf0000000;
1483 /* activate IRQ mappings */
1486 for(i = 0; i < 4; i++) {
1488 /* set to trigger level */
1489 elcr[irq >> 3] |= (1 << (irq & 7));
1490 /* activate irq remapping in PIIX */
1491 pci_config_writeb((PCIDevice *)piix3_state, 0x60 + i, irq);
1493 isa_outb(elcr[0], 0x4d0);
1494 isa_outb(elcr[1], 0x4d1);
1498 for(devfn = 0; devfn < 256; devfn++) {
1499 d = bus->devices[devfn];
1501 pci_bios_init_device(d);