2 * DEC 21272 (TSUNAMI/TYPHOON) chipset emulation.
4 * Written by Richard Henderson.
6 * This work is licensed under the GNU GPL license version 2 or later.
9 #include "qemu/osdep.h"
10 #include "qapi/error.h"
13 #include "hw/devices.h"
14 #include "sysemu/sysemu.h"
15 #include "alpha_sys.h"
16 #include "exec/address-spaces.h"
19 #define TYPE_TYPHOON_PCI_HOST_BRIDGE "typhoon-pcihost"
20 #define TYPE_TYPHOON_IOMMU_MEMORY_REGION "typhoon-iommu-memory-region"
22 typedef struct TyphoonCchip {
31 typedef struct TyphoonWindow {
37 typedef struct TyphoonPchip {
39 MemoryRegion reg_iack;
42 MemoryRegion reg_conf;
44 AddressSpace iommu_as;
45 IOMMUMemoryRegion iommu;
51 #define TYPHOON_PCI_HOST_BRIDGE(obj) \
52 OBJECT_CHECK(TyphoonState, (obj), TYPE_TYPHOON_PCI_HOST_BRIDGE)
54 typedef struct TyphoonState {
55 PCIHostState parent_obj;
59 MemoryRegion dchip_region;
60 MemoryRegion ram_region;
63 /* Called when one of DRIR or DIM changes. */
64 static void cpu_irq_change(AlphaCPU *cpu, uint64_t req)
66 /* If there are any non-masked interrupts, tell the cpu. */
68 CPUState *cs = CPU(cpu);
70 cpu_interrupt(cs, CPU_INTERRUPT_HARD);
72 cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
77 static uint64_t cchip_read(void *opaque, hwaddr addr, unsigned size)
79 CPUState *cpu = current_cpu;
80 TyphoonState *s = opaque;
85 /* CSC: Cchip System Configuration Register. */
86 /* All sorts of data here; probably the only thing relevant is
87 PIP<14> Pchip 1 Present = 0. */
91 /* MTR: Memory Timing Register. */
92 /* All sorts of stuff related to real DRAM. */
96 /* MISC: Miscellaneous Register. */
97 ret = s->cchip.misc | (cpu->cpu_index & 3);
101 /* MPD: Memory Presence Detect Register. */
104 case 0x0100: /* AAR0 */
105 case 0x0140: /* AAR1 */
106 case 0x0180: /* AAR2 */
107 case 0x01c0: /* AAR3 */
108 /* AAR: Array Address Register. */
109 /* All sorts of information about DRAM. */
113 /* DIM0: Device Interrupt Mask Register, CPU0. */
114 ret = s->cchip.dim[0];
117 /* DIM1: Device Interrupt Mask Register, CPU1. */
118 ret = s->cchip.dim[1];
121 /* DIR0: Device Interrupt Request Register, CPU0. */
122 ret = s->cchip.dim[0] & s->cchip.drir;
125 /* DIR1: Device Interrupt Request Register, CPU1. */
126 ret = s->cchip.dim[1] & s->cchip.drir;
129 /* DRIR: Device Raw Interrupt Request Register. */
134 /* PRBEN: Probe Enable Register. */
138 /* IIC0: Interval Ignore Count Register, CPU0. */
139 ret = s->cchip.iic[0];
142 /* IIC1: Interval Ignore Count Register, CPU1. */
143 ret = s->cchip.iic[1];
146 case 0x0400: /* MPR0 */
147 case 0x0440: /* MPR1 */
148 case 0x0480: /* MPR2 */
149 case 0x04c0: /* MPR3 */
150 /* MPR: Memory Programming Register. */
154 /* TTR: TIGbus Timing Register. */
155 /* All sorts of stuff related to interrupt delivery timings. */
158 /* TDR: TIGbug Device Timing Register. */
162 /* DIM2: Device Interrupt Mask Register, CPU2. */
163 ret = s->cchip.dim[2];
166 /* DIM3: Device Interrupt Mask Register, CPU3. */
167 ret = s->cchip.dim[3];
170 /* DIR2: Device Interrupt Request Register, CPU2. */
171 ret = s->cchip.dim[2] & s->cchip.drir;
174 /* DIR3: Device Interrupt Request Register, CPU3. */
175 ret = s->cchip.dim[3] & s->cchip.drir;
179 /* IIC2: Interval Ignore Count Register, CPU2. */
180 ret = s->cchip.iic[2];
183 /* IIC3: Interval Ignore Count Register, CPU3. */
184 ret = s->cchip.iic[3];
188 /* PWR: Power Management Control. */
191 case 0x0c00: /* CMONCTLA */
192 case 0x0c40: /* CMONCTLB */
193 case 0x0c80: /* CMONCNT01 */
194 case 0x0cc0: /* CMONCNT23 */
198 cpu_unassigned_access(cpu, addr, false, false, 0, size);
205 static uint64_t dchip_read(void *opaque, hwaddr addr, unsigned size)
207 /* Skip this. It's all related to DRAM timing and setup. */
211 static uint64_t pchip_read(void *opaque, hwaddr addr, unsigned size)
213 TyphoonState *s = opaque;
218 /* WSBA0: Window Space Base Address Register. */
219 ret = s->pchip.win[0].wba;
223 ret = s->pchip.win[1].wba;
227 ret = s->pchip.win[2].wba;
231 ret = s->pchip.win[3].wba;
235 /* WSM0: Window Space Mask Register. */
236 ret = s->pchip.win[0].wsm;
240 ret = s->pchip.win[1].wsm;
244 ret = s->pchip.win[2].wsm;
248 ret = s->pchip.win[3].wsm;
252 /* TBA0: Translated Base Address Register. */
253 ret = s->pchip.win[0].tba;
257 ret = s->pchip.win[1].tba;
261 ret = s->pchip.win[2].tba;
265 ret = s->pchip.win[3].tba;
269 /* PCTL: Pchip Control Register. */
273 /* PLAT: Pchip Master Latency Register. */
276 /* PERROR: Pchip Error Register. */
279 /* PERRMASK: Pchip Error Mask Register. */
282 /* PERRSET: Pchip Error Set Register. */
285 /* TLBIV: Translation Buffer Invalidate Virtual Register (WO). */
288 /* TLBIA: Translation Buffer Invalidate All Register (WO). */
290 case 0x0500: /* PMONCTL */
291 case 0x0540: /* PMONCNT */
292 case 0x0800: /* SPRST */
296 cpu_unassigned_access(current_cpu, addr, false, false, 0, size);
303 static void cchip_write(void *opaque, hwaddr addr,
304 uint64_t val, unsigned size)
306 TyphoonState *s = opaque;
307 uint64_t oldval, newval;
311 /* CSC: Cchip System Configuration Register. */
312 /* All sorts of data here; nothing relevant RW. */
316 /* MTR: Memory Timing Register. */
317 /* All sorts of stuff related to real DRAM. */
321 /* MISC: Miscellaneous Register. */
322 newval = oldval = s->cchip.misc;
323 newval &= ~(val & 0x10000ff0); /* W1C fields */
324 if (val & 0x100000) {
325 newval &= ~0xff0000ull; /* ACL clears ABT and ABW */
327 newval |= val & 0x00f00000; /* ABT field is W1S */
328 if ((newval & 0xf0000) == 0) {
329 newval |= val & 0xf0000; /* ABW field is W1S iff zero */
332 newval |= (val & 0xf000) >> 4; /* IPREQ field sets IPINTR. */
334 newval &= ~0xf0000000000ull; /* WO and RW fields */
335 newval |= val & 0xf0000000000ull;
336 s->cchip.misc = newval;
338 /* Pass on changes to IPI and ITI state. */
339 if ((newval ^ oldval) & 0xff0) {
341 for (i = 0; i < 4; ++i) {
342 AlphaCPU *cpu = s->cchip.cpu[i];
344 CPUState *cs = CPU(cpu);
345 /* IPI can be either cleared or set by the write. */
346 if (newval & (1 << (i + 8))) {
347 cpu_interrupt(cs, CPU_INTERRUPT_SMP);
349 cpu_reset_interrupt(cs, CPU_INTERRUPT_SMP);
352 /* ITI can only be cleared by the write. */
353 if ((newval & (1 << (i + 4))) == 0) {
354 cpu_reset_interrupt(cs, CPU_INTERRUPT_TIMER);
362 /* MPD: Memory Presence Detect Register. */
365 case 0x0100: /* AAR0 */
366 case 0x0140: /* AAR1 */
367 case 0x0180: /* AAR2 */
368 case 0x01c0: /* AAR3 */
369 /* AAR: Array Address Register. */
370 /* All sorts of information about DRAM. */
373 case 0x0200: /* DIM0 */
374 /* DIM: Device Interrupt Mask Register, CPU0. */
375 s->cchip.dim[0] = val;
376 cpu_irq_change(s->cchip.cpu[0], val & s->cchip.drir);
378 case 0x0240: /* DIM1 */
379 /* DIM: Device Interrupt Mask Register, CPU1. */
380 s->cchip.dim[1] = val;
381 cpu_irq_change(s->cchip.cpu[1], val & s->cchip.drir);
384 case 0x0280: /* DIR0 (RO) */
385 case 0x02c0: /* DIR1 (RO) */
386 case 0x0300: /* DRIR (RO) */
390 /* PRBEN: Probe Enable Register. */
393 case 0x0380: /* IIC0 */
394 s->cchip.iic[0] = val & 0xffffff;
396 case 0x03c0: /* IIC1 */
397 s->cchip.iic[1] = val & 0xffffff;
400 case 0x0400: /* MPR0 */
401 case 0x0440: /* MPR1 */
402 case 0x0480: /* MPR2 */
403 case 0x04c0: /* MPR3 */
404 /* MPR: Memory Programming Register. */
408 /* TTR: TIGbus Timing Register. */
409 /* All sorts of stuff related to interrupt delivery timings. */
412 /* TDR: TIGbug Device Timing Register. */
416 /* DIM2: Device Interrupt Mask Register, CPU2. */
417 s->cchip.dim[2] = val;
418 cpu_irq_change(s->cchip.cpu[2], val & s->cchip.drir);
421 /* DIM3: Device Interrupt Mask Register, CPU3. */
422 s->cchip.dim[3] = val;
423 cpu_irq_change(s->cchip.cpu[3], val & s->cchip.drir);
426 case 0x0680: /* DIR2 (RO) */
427 case 0x06c0: /* DIR3 (RO) */
430 case 0x0700: /* IIC2 */
431 s->cchip.iic[2] = val & 0xffffff;
433 case 0x0740: /* IIC3 */
434 s->cchip.iic[3] = val & 0xffffff;
438 /* PWR: Power Management Control. */
441 case 0x0c00: /* CMONCTLA */
442 case 0x0c40: /* CMONCTLB */
443 case 0x0c80: /* CMONCNT01 */
444 case 0x0cc0: /* CMONCNT23 */
448 cpu_unassigned_access(current_cpu, addr, true, false, 0, size);
453 static void dchip_write(void *opaque, hwaddr addr,
454 uint64_t val, unsigned size)
456 /* Skip this. It's all related to DRAM timing and setup. */
459 static void pchip_write(void *opaque, hwaddr addr,
460 uint64_t val, unsigned size)
462 TyphoonState *s = opaque;
467 /* WSBA0: Window Space Base Address Register. */
468 s->pchip.win[0].wba = val & 0xfff00003u;
472 s->pchip.win[1].wba = val & 0xfff00003u;
476 s->pchip.win[2].wba = val & 0xfff00003u;
480 s->pchip.win[3].wba = (val & 0x80fff00001ull) | 2;
484 /* WSM0: Window Space Mask Register. */
485 s->pchip.win[0].wsm = val & 0xfff00000u;
489 s->pchip.win[1].wsm = val & 0xfff00000u;
493 s->pchip.win[2].wsm = val & 0xfff00000u;
497 s->pchip.win[3].wsm = val & 0xfff00000u;
501 /* TBA0: Translated Base Address Register. */
502 s->pchip.win[0].tba = val & 0x7fffffc00ull;
506 s->pchip.win[1].tba = val & 0x7fffffc00ull;
510 s->pchip.win[2].tba = val & 0x7fffffc00ull;
514 s->pchip.win[3].tba = val & 0x7fffffc00ull;
518 /* PCTL: Pchip Control Register. */
519 oldval = s->pchip.ctl;
520 oldval &= ~0x00001cff0fc7ffull; /* RW fields */
521 oldval |= val & 0x00001cff0fc7ffull;
522 s->pchip.ctl = oldval;
526 /* PLAT: Pchip Master Latency Register. */
529 /* PERROR: Pchip Error Register. */
532 /* PERRMASK: Pchip Error Mask Register. */
535 /* PERRSET: Pchip Error Set Register. */
539 /* TLBIV: Translation Buffer Invalidate Virtual Register. */
543 /* TLBIA: Translation Buffer Invalidate All Register (WO). */
555 cpu_unassigned_access(current_cpu, addr, true, false, 0, size);
560 static const MemoryRegionOps cchip_ops = {
562 .write = cchip_write,
563 .endianness = DEVICE_LITTLE_ENDIAN,
565 .min_access_size = 8,
566 .max_access_size = 8,
569 .min_access_size = 8,
570 .max_access_size = 8,
574 static const MemoryRegionOps dchip_ops = {
576 .write = dchip_write,
577 .endianness = DEVICE_LITTLE_ENDIAN,
579 .min_access_size = 8,
580 .max_access_size = 8,
583 .min_access_size = 8,
584 .max_access_size = 8,
588 static const MemoryRegionOps pchip_ops = {
590 .write = pchip_write,
591 .endianness = DEVICE_LITTLE_ENDIAN,
593 .min_access_size = 8,
594 .max_access_size = 8,
597 .min_access_size = 8,
598 .max_access_size = 8,
602 /* A subroutine of typhoon_translate_iommu that builds an IOMMUTLBEntry
603 using the given translated address and mask. */
604 static bool make_iommu_tlbe(hwaddr taddr, hwaddr mask, IOMMUTLBEntry *ret)
606 *ret = (IOMMUTLBEntry) {
607 .target_as = &address_space_memory,
608 .translated_addr = taddr,
615 /* A subroutine of typhoon_translate_iommu that handles scatter-gather
616 translation, given the address of the PTE. */
617 static bool pte_translate(hwaddr pte_addr, IOMMUTLBEntry *ret)
619 uint64_t pte = address_space_ldq(&address_space_memory, pte_addr,
620 MEMTXATTRS_UNSPECIFIED, NULL);
622 /* Check valid bit. */
623 if ((pte & 1) == 0) {
627 return make_iommu_tlbe((pte & 0x3ffffe) << 12, 0x1fff, ret);
630 /* A subroutine of typhoon_translate_iommu that handles one of the
631 four single-address-cycle translation windows. */
632 static bool window_translate(TyphoonWindow *win, hwaddr addr,
635 uint32_t wba = win->wba;
636 uint64_t wsm = win->wsm;
637 uint64_t tba = win->tba;
638 uint64_t wsm_ext = wsm | 0xfffff;
640 /* Check for window disabled. */
641 if ((wba & 1) == 0) {
645 /* Check for window hit. */
646 if ((addr & ~wsm_ext) != (wba & 0xfff00000u)) {
651 /* Scatter-gather translation. */
654 /* See table 10-6, Generating PTE address for PCI DMA Address. */
655 pte_addr = tba & ~(wsm >> 10);
656 pte_addr |= (addr & (wsm | 0xfe000)) >> 10;
657 return pte_translate(pte_addr, ret);
659 /* Direct-mapped translation. */
660 return make_iommu_tlbe(tba & ~wsm_ext, wsm_ext, ret);
664 /* Handle PCI-to-system address translation. */
665 /* TODO: A translation failure here ought to set PCI error codes on the
666 Pchip and generate a machine check interrupt. */
667 static IOMMUTLBEntry typhoon_translate_iommu(IOMMUMemoryRegion *iommu,
669 IOMMUAccessFlags flag,
672 TyphoonPchip *pchip = container_of(iommu, TyphoonPchip, iommu);
676 if (addr <= 0xffffffffu) {
677 /* Single-address cycle. */
679 /* Check for the Window Hole, inhibiting matching. */
680 if ((pchip->ctl & 0x20)
682 && addr <= 0xfffff) {
686 /* Check the first three windows. */
687 for (i = 0; i < 3; ++i) {
688 if (window_translate(&pchip->win[i], addr, &ret)) {
693 /* Check the fourth window for DAC disable. */
694 if ((pchip->win[3].wba & 0x80000000000ull) == 0
695 && window_translate(&pchip->win[3], addr, &ret)) {
699 /* Double-address cycle. */
701 if (addr >= 0x10000000000ull && addr < 0x20000000000ull) {
702 /* Check for the DMA monster window. */
703 if (pchip->ctl & 0x40) {
704 /* See 10.1.4.4; in particular <39:35> is ignored. */
705 make_iommu_tlbe(0, 0x007ffffffffull, &ret);
710 if (addr >= 0x80000000000ull && addr <= 0xfffffffffffull) {
711 /* Check the fourth window for DAC enable and window enable. */
712 if ((pchip->win[3].wba & 0x80000000001ull) == 0x80000000001ull) {
715 pte_addr = pchip->win[3].tba & 0x7ffc00000ull;
716 pte_addr |= (addr & 0xffffe000u) >> 10;
717 if (pte_translate(pte_addr, &ret)) {
725 ret = (IOMMUTLBEntry) { .perm = IOMMU_NONE };
730 static AddressSpace *typhoon_pci_dma_iommu(PCIBus *bus, void *opaque, int devfn)
732 TyphoonState *s = opaque;
733 return &s->pchip.iommu_as;
736 static void typhoon_set_irq(void *opaque, int irq, int level)
738 TyphoonState *s = opaque;
742 /* Set/Reset the bit in CCHIP.DRIR based on IRQ+LEVEL. */
743 drir = s->cchip.drir;
747 drir &= ~(1ull << irq);
749 s->cchip.drir = drir;
751 for (i = 0; i < 4; ++i) {
752 cpu_irq_change(s->cchip.cpu[i], s->cchip.dim[i] & drir);
756 static void typhoon_set_isa_irq(void *opaque, int irq, int level)
758 typhoon_set_irq(opaque, 55, level);
761 static void typhoon_set_timer_irq(void *opaque, int irq, int level)
763 TyphoonState *s = opaque;
766 /* Thankfully, the mc146818rtc code doesn't track the IRQ state,
767 and so we don't have to worry about missing interrupts just
768 because we never actually ACK the interrupt. Just ignore any
769 case of the interrupt level going low. */
774 /* Deliver the interrupt to each CPU, considering each CPU's IIC. */
775 for (i = 0; i < 4; ++i) {
776 AlphaCPU *cpu = s->cchip.cpu[i];
778 uint32_t iic = s->cchip.iic[i];
780 /* ??? The verbage in Section 10.2.2.10 isn't 100% clear.
781 Bit 24 is the OverFlow bit, RO, and set when the count
782 decrements past 0. When is OF cleared? My guess is that
783 OF is actually cleared when the IIC is written, and that
784 the ICNT field always decrements. At least, that's an
785 interpretation that makes sense, and "allows the CPU to
786 determine exactly how mant interval timer ticks were
787 skipped". At least within the next 4M ticks... */
789 iic = ((iic - 1) & 0x1ffffff) | (iic & 0x1000000);
790 s->cchip.iic[i] = iic;
792 if (iic & 0x1000000) {
793 /* Set the ITI bit for this cpu. */
794 s->cchip.misc |= 1 << (i + 4);
795 /* And signal the interrupt. */
796 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_TIMER);
802 static void typhoon_alarm_timer(void *opaque)
804 TyphoonState *s = (TyphoonState *)((uintptr_t)opaque & ~3);
805 int cpu = (uintptr_t)opaque & 3;
807 /* Set the ITI bit for this cpu. */
808 s->cchip.misc |= 1 << (cpu + 4);
809 cpu_interrupt(CPU(s->cchip.cpu[cpu]), CPU_INTERRUPT_TIMER);
812 PCIBus *typhoon_init(ram_addr_t ram_size, ISABus **isa_bus,
814 AlphaCPU *cpus[4], pci_map_irq_fn sys_map_irq)
816 const uint64_t MB = 1024 * 1024;
817 const uint64_t GB = 1024 * MB;
818 MemoryRegion *addr_space = get_system_memory();
825 dev = qdev_create(NULL, TYPE_TYPHOON_PCI_HOST_BRIDGE);
827 s = TYPHOON_PCI_HOST_BRIDGE(dev);
828 phb = PCI_HOST_BRIDGE(dev);
830 s->cchip.misc = 0x800000000ull; /* Revision: Typhoon. */
831 s->pchip.win[3].wba = 2; /* Window 3 SG always enabled. */
833 /* Remember the CPUs so that we can deliver interrupts to them. */
834 for (i = 0; i < 4; i++) {
835 AlphaCPU *cpu = cpus[i];
836 s->cchip.cpu[i] = cpu;
838 cpu->alarm_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
840 (void *)((uintptr_t)s + i));
844 *p_rtc_irq = qemu_allocate_irq(typhoon_set_timer_irq, s, 0);
846 /* Main memory region, 0x00.0000.0000. Real hardware supports 32GB,
847 but the address space hole reserved at this point is 8TB. */
848 memory_region_allocate_system_memory(&s->ram_region, OBJECT(s), "ram",
850 memory_region_add_subregion(addr_space, 0, &s->ram_region);
852 /* TIGbus, 0x801.0000.0000, 1GB. */
853 /* ??? The TIGbus is used for delivering interrupts, and access to
854 the flash ROM. I'm not sure that we need to implement it at all. */
856 /* Pchip0 CSRs, 0x801.8000.0000, 256MB. */
857 memory_region_init_io(&s->pchip.region, OBJECT(s), &pchip_ops, s, "pchip0",
859 memory_region_add_subregion(addr_space, 0x80180000000ULL,
862 /* Cchip CSRs, 0x801.A000.0000, 256MB. */
863 memory_region_init_io(&s->cchip.region, OBJECT(s), &cchip_ops, s, "cchip0",
865 memory_region_add_subregion(addr_space, 0x801a0000000ULL,
868 /* Dchip CSRs, 0x801.B000.0000, 256MB. */
869 memory_region_init_io(&s->dchip_region, OBJECT(s), &dchip_ops, s, "dchip0",
871 memory_region_add_subregion(addr_space, 0x801b0000000ULL,
874 /* Pchip0 PCI memory, 0x800.0000.0000, 4GB. */
875 memory_region_init(&s->pchip.reg_mem, OBJECT(s), "pci0-mem", 4*GB);
876 memory_region_add_subregion(addr_space, 0x80000000000ULL,
879 /* Pchip0 PCI I/O, 0x801.FC00.0000, 32MB. */
880 memory_region_init_io(&s->pchip.reg_io, OBJECT(s), &alpha_pci_ignore_ops,
881 NULL, "pci0-io", 32*MB);
882 memory_region_add_subregion(addr_space, 0x801fc000000ULL,
885 b = pci_register_root_bus(dev, "pci",
886 typhoon_set_irq, sys_map_irq, s,
887 &s->pchip.reg_mem, &s->pchip.reg_io,
888 0, 64, TYPE_PCI_BUS);
890 qdev_init_nofail(dev);
892 /* Host memory as seen from the PCI side, via the IOMMU. */
893 memory_region_init_iommu(&s->pchip.iommu, sizeof(s->pchip.iommu),
894 TYPE_TYPHOON_IOMMU_MEMORY_REGION, OBJECT(s),
895 "iommu-typhoon", UINT64_MAX);
896 address_space_init(&s->pchip.iommu_as, MEMORY_REGION(&s->pchip.iommu),
898 pci_setup_iommu(b, typhoon_pci_dma_iommu, s);
900 /* Pchip0 PCI special/interrupt acknowledge, 0x801.F800.0000, 64MB. */
901 memory_region_init_io(&s->pchip.reg_iack, OBJECT(s), &alpha_pci_iack_ops,
902 b, "pci0-iack", 64*MB);
903 memory_region_add_subregion(addr_space, 0x801f8000000ULL,
906 /* Pchip0 PCI configuration, 0x801.FE00.0000, 16MB. */
907 memory_region_init_io(&s->pchip.reg_conf, OBJECT(s), &alpha_pci_conf1_ops,
908 b, "pci0-conf", 16*MB);
909 memory_region_add_subregion(addr_space, 0x801fe000000ULL,
912 /* For the record, these are the mappings for the second PCI bus.
913 We can get away with not implementing them because we indicate
914 via the Cchip.CSC<PIP> bit that Pchip1 is not present. */
915 /* Pchip1 PCI memory, 0x802.0000.0000, 4GB. */
916 /* Pchip1 CSRs, 0x802.8000.0000, 256MB. */
917 /* Pchip1 PCI special/interrupt acknowledge, 0x802.F800.0000, 64MB. */
918 /* Pchip1 PCI I/O, 0x802.FC00.0000, 32MB. */
919 /* Pchip1 PCI configuration, 0x802.FE00.0000, 16MB. */
921 /* Init the ISA bus. */
922 /* ??? Technically there should be a cy82c693ub pci-isa bridge. */
926 *isa_bus = isa_bus_new(NULL, get_system_memory(), &s->pchip.reg_io,
928 isa_irqs = i8259_init(*isa_bus,
929 qemu_allocate_irq(typhoon_set_isa_irq, s, 0));
930 isa_bus_irqs(*isa_bus, isa_irqs);
936 static int typhoon_pcihost_init(SysBusDevice *dev)
941 static void typhoon_pcihost_class_init(ObjectClass *klass, void *data)
943 SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
945 k->init = typhoon_pcihost_init;
948 static const TypeInfo typhoon_pcihost_info = {
949 .name = TYPE_TYPHOON_PCI_HOST_BRIDGE,
950 .parent = TYPE_PCI_HOST_BRIDGE,
951 .instance_size = sizeof(TyphoonState),
952 .class_init = typhoon_pcihost_class_init,
955 static void typhoon_iommu_memory_region_class_init(ObjectClass *klass,
958 IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
960 imrc->translate = typhoon_translate_iommu;
963 static const TypeInfo typhoon_iommu_memory_region_info = {
964 .parent = TYPE_IOMMU_MEMORY_REGION,
965 .name = TYPE_TYPHOON_IOMMU_MEMORY_REGION,
966 .class_init = typhoon_iommu_memory_region_class_init,
969 static void typhoon_register_types(void)
971 type_register_static(&typhoon_pcihost_info);
972 type_register_static(&typhoon_iommu_memory_region_info);
975 type_init(typhoon_register_types)