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"
21 typedef struct TyphoonCchip {
30 typedef struct TyphoonWindow {
36 typedef struct TyphoonPchip {
38 MemoryRegion reg_iack;
41 MemoryRegion reg_conf;
43 AddressSpace iommu_as;
44 IOMMUMemoryRegion iommu;
50 #define TYPHOON_PCI_HOST_BRIDGE(obj) \
51 OBJECT_CHECK(TyphoonState, (obj), TYPE_TYPHOON_PCI_HOST_BRIDGE)
53 typedef struct TyphoonState {
54 PCIHostState parent_obj;
58 MemoryRegion dchip_region;
59 MemoryRegion ram_region;
62 /* Called when one of DRIR or DIM changes. */
63 static void cpu_irq_change(AlphaCPU *cpu, uint64_t req)
65 /* If there are any non-masked interrupts, tell the cpu. */
67 CPUState *cs = CPU(cpu);
69 cpu_interrupt(cs, CPU_INTERRUPT_HARD);
71 cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
76 static uint64_t cchip_read(void *opaque, hwaddr addr, unsigned size)
78 CPUState *cpu = current_cpu;
79 TyphoonState *s = opaque;
84 /* CSC: Cchip System Configuration Register. */
85 /* All sorts of data here; probably the only thing relevant is
86 PIP<14> Pchip 1 Present = 0. */
90 /* MTR: Memory Timing Register. */
91 /* All sorts of stuff related to real DRAM. */
95 /* MISC: Miscellaneous Register. */
96 ret = s->cchip.misc | (cpu->cpu_index & 3);
100 /* MPD: Memory Presence Detect Register. */
103 case 0x0100: /* AAR0 */
104 case 0x0140: /* AAR1 */
105 case 0x0180: /* AAR2 */
106 case 0x01c0: /* AAR3 */
107 /* AAR: Array Address Register. */
108 /* All sorts of information about DRAM. */
112 /* DIM0: Device Interrupt Mask Register, CPU0. */
113 ret = s->cchip.dim[0];
116 /* DIM1: Device Interrupt Mask Register, CPU1. */
117 ret = s->cchip.dim[1];
120 /* DIR0: Device Interrupt Request Register, CPU0. */
121 ret = s->cchip.dim[0] & s->cchip.drir;
124 /* DIR1: Device Interrupt Request Register, CPU1. */
125 ret = s->cchip.dim[1] & s->cchip.drir;
128 /* DRIR: Device Raw Interrupt Request Register. */
133 /* PRBEN: Probe Enable Register. */
137 /* IIC0: Interval Ignore Count Register, CPU0. */
138 ret = s->cchip.iic[0];
141 /* IIC1: Interval Ignore Count Register, CPU1. */
142 ret = s->cchip.iic[1];
145 case 0x0400: /* MPR0 */
146 case 0x0440: /* MPR1 */
147 case 0x0480: /* MPR2 */
148 case 0x04c0: /* MPR3 */
149 /* MPR: Memory Programming Register. */
153 /* TTR: TIGbus Timing Register. */
154 /* All sorts of stuff related to interrupt delivery timings. */
157 /* TDR: TIGbug Device Timing Register. */
161 /* DIM2: Device Interrupt Mask Register, CPU2. */
162 ret = s->cchip.dim[2];
165 /* DIM3: Device Interrupt Mask Register, CPU3. */
166 ret = s->cchip.dim[3];
169 /* DIR2: Device Interrupt Request Register, CPU2. */
170 ret = s->cchip.dim[2] & s->cchip.drir;
173 /* DIR3: Device Interrupt Request Register, CPU3. */
174 ret = s->cchip.dim[3] & s->cchip.drir;
178 /* IIC2: Interval Ignore Count Register, CPU2. */
179 ret = s->cchip.iic[2];
182 /* IIC3: Interval Ignore Count Register, CPU3. */
183 ret = s->cchip.iic[3];
187 /* PWR: Power Management Control. */
190 case 0x0c00: /* CMONCTLA */
191 case 0x0c40: /* CMONCTLB */
192 case 0x0c80: /* CMONCNT01 */
193 case 0x0cc0: /* CMONCNT23 */
197 cpu_unassigned_access(cpu, addr, false, false, 0, size);
204 static uint64_t dchip_read(void *opaque, hwaddr addr, unsigned size)
206 /* Skip this. It's all related to DRAM timing and setup. */
210 static uint64_t pchip_read(void *opaque, hwaddr addr, unsigned size)
212 TyphoonState *s = opaque;
217 /* WSBA0: Window Space Base Address Register. */
218 ret = s->pchip.win[0].wba;
222 ret = s->pchip.win[1].wba;
226 ret = s->pchip.win[2].wba;
230 ret = s->pchip.win[3].wba;
234 /* WSM0: Window Space Mask Register. */
235 ret = s->pchip.win[0].wsm;
239 ret = s->pchip.win[1].wsm;
243 ret = s->pchip.win[2].wsm;
247 ret = s->pchip.win[3].wsm;
251 /* TBA0: Translated Base Address Register. */
252 ret = s->pchip.win[0].tba;
256 ret = s->pchip.win[1].tba;
260 ret = s->pchip.win[2].tba;
264 ret = s->pchip.win[3].tba;
268 /* PCTL: Pchip Control Register. */
272 /* PLAT: Pchip Master Latency Register. */
275 /* PERROR: Pchip Error Register. */
278 /* PERRMASK: Pchip Error Mask Register. */
281 /* PERRSET: Pchip Error Set Register. */
284 /* TLBIV: Translation Buffer Invalidate Virtual Register (WO). */
287 /* TLBIA: Translation Buffer Invalidate All Register (WO). */
289 case 0x0500: /* PMONCTL */
290 case 0x0540: /* PMONCNT */
291 case 0x0800: /* SPRST */
295 cpu_unassigned_access(current_cpu, addr, false, false, 0, size);
302 static void cchip_write(void *opaque, hwaddr addr,
303 uint64_t val, unsigned size)
305 TyphoonState *s = opaque;
306 uint64_t oldval, newval;
310 /* CSC: Cchip System Configuration Register. */
311 /* All sorts of data here; nothing relevant RW. */
315 /* MTR: Memory Timing Register. */
316 /* All sorts of stuff related to real DRAM. */
320 /* MISC: Miscellaneous Register. */
321 newval = oldval = s->cchip.misc;
322 newval &= ~(val & 0x10000ff0); /* W1C fields */
323 if (val & 0x100000) {
324 newval &= ~0xff0000ull; /* ACL clears ABT and ABW */
326 newval |= val & 0x00f00000; /* ABT field is W1S */
327 if ((newval & 0xf0000) == 0) {
328 newval |= val & 0xf0000; /* ABW field is W1S iff zero */
331 newval |= (val & 0xf000) >> 4; /* IPREQ field sets IPINTR. */
333 newval &= ~0xf0000000000ull; /* WO and RW fields */
334 newval |= val & 0xf0000000000ull;
335 s->cchip.misc = newval;
337 /* Pass on changes to IPI and ITI state. */
338 if ((newval ^ oldval) & 0xff0) {
340 for (i = 0; i < 4; ++i) {
341 AlphaCPU *cpu = s->cchip.cpu[i];
343 CPUState *cs = CPU(cpu);
344 /* IPI can be either cleared or set by the write. */
345 if (newval & (1 << (i + 8))) {
346 cpu_interrupt(cs, CPU_INTERRUPT_SMP);
348 cpu_reset_interrupt(cs, CPU_INTERRUPT_SMP);
351 /* ITI can only be cleared by the write. */
352 if ((newval & (1 << (i + 4))) == 0) {
353 cpu_reset_interrupt(cs, CPU_INTERRUPT_TIMER);
361 /* MPD: Memory Presence Detect Register. */
364 case 0x0100: /* AAR0 */
365 case 0x0140: /* AAR1 */
366 case 0x0180: /* AAR2 */
367 case 0x01c0: /* AAR3 */
368 /* AAR: Array Address Register. */
369 /* All sorts of information about DRAM. */
372 case 0x0200: /* DIM0 */
373 /* DIM: Device Interrupt Mask Register, CPU0. */
374 s->cchip.dim[0] = val;
375 cpu_irq_change(s->cchip.cpu[0], val & s->cchip.drir);
377 case 0x0240: /* DIM1 */
378 /* DIM: Device Interrupt Mask Register, CPU1. */
379 s->cchip.dim[1] = val;
380 cpu_irq_change(s->cchip.cpu[1], val & s->cchip.drir);
383 case 0x0280: /* DIR0 (RO) */
384 case 0x02c0: /* DIR1 (RO) */
385 case 0x0300: /* DRIR (RO) */
389 /* PRBEN: Probe Enable Register. */
392 case 0x0380: /* IIC0 */
393 s->cchip.iic[0] = val & 0xffffff;
395 case 0x03c0: /* IIC1 */
396 s->cchip.iic[1] = val & 0xffffff;
399 case 0x0400: /* MPR0 */
400 case 0x0440: /* MPR1 */
401 case 0x0480: /* MPR2 */
402 case 0x04c0: /* MPR3 */
403 /* MPR: Memory Programming Register. */
407 /* TTR: TIGbus Timing Register. */
408 /* All sorts of stuff related to interrupt delivery timings. */
411 /* TDR: TIGbug Device Timing Register. */
415 /* DIM2: Device Interrupt Mask Register, CPU2. */
416 s->cchip.dim[2] = val;
417 cpu_irq_change(s->cchip.cpu[2], val & s->cchip.drir);
420 /* DIM3: Device Interrupt Mask Register, CPU3. */
421 s->cchip.dim[3] = val;
422 cpu_irq_change(s->cchip.cpu[3], val & s->cchip.drir);
425 case 0x0680: /* DIR2 (RO) */
426 case 0x06c0: /* DIR3 (RO) */
429 case 0x0700: /* IIC2 */
430 s->cchip.iic[2] = val & 0xffffff;
432 case 0x0740: /* IIC3 */
433 s->cchip.iic[3] = val & 0xffffff;
437 /* PWR: Power Management Control. */
440 case 0x0c00: /* CMONCTLA */
441 case 0x0c40: /* CMONCTLB */
442 case 0x0c80: /* CMONCNT01 */
443 case 0x0cc0: /* CMONCNT23 */
447 cpu_unassigned_access(current_cpu, addr, true, false, 0, size);
452 static void dchip_write(void *opaque, hwaddr addr,
453 uint64_t val, unsigned size)
455 /* Skip this. It's all related to DRAM timing and setup. */
458 static void pchip_write(void *opaque, hwaddr addr,
459 uint64_t val, unsigned size)
461 TyphoonState *s = opaque;
466 /* WSBA0: Window Space Base Address Register. */
467 s->pchip.win[0].wba = val & 0xfff00003u;
471 s->pchip.win[1].wba = val & 0xfff00003u;
475 s->pchip.win[2].wba = val & 0xfff00003u;
479 s->pchip.win[3].wba = (val & 0x80fff00001ull) | 2;
483 /* WSM0: Window Space Mask Register. */
484 s->pchip.win[0].wsm = val & 0xfff00000u;
488 s->pchip.win[1].wsm = val & 0xfff00000u;
492 s->pchip.win[2].wsm = val & 0xfff00000u;
496 s->pchip.win[3].wsm = val & 0xfff00000u;
500 /* TBA0: Translated Base Address Register. */
501 s->pchip.win[0].tba = val & 0x7fffffc00ull;
505 s->pchip.win[1].tba = val & 0x7fffffc00ull;
509 s->pchip.win[2].tba = val & 0x7fffffc00ull;
513 s->pchip.win[3].tba = val & 0x7fffffc00ull;
517 /* PCTL: Pchip Control Register. */
518 oldval = s->pchip.ctl;
519 oldval &= ~0x00001cff0fc7ffull; /* RW fields */
520 oldval |= val & 0x00001cff0fc7ffull;
521 s->pchip.ctl = oldval;
525 /* PLAT: Pchip Master Latency Register. */
528 /* PERROR: Pchip Error Register. */
531 /* PERRMASK: Pchip Error Mask Register. */
534 /* PERRSET: Pchip Error Set Register. */
538 /* TLBIV: Translation Buffer Invalidate Virtual Register. */
542 /* TLBIA: Translation Buffer Invalidate All Register (WO). */
554 cpu_unassigned_access(current_cpu, addr, true, false, 0, size);
559 static const MemoryRegionOps cchip_ops = {
561 .write = cchip_write,
562 .endianness = DEVICE_LITTLE_ENDIAN,
564 .min_access_size = 8,
565 .max_access_size = 8,
568 .min_access_size = 8,
569 .max_access_size = 8,
573 static const MemoryRegionOps dchip_ops = {
575 .write = dchip_write,
576 .endianness = DEVICE_LITTLE_ENDIAN,
578 .min_access_size = 8,
579 .max_access_size = 8,
582 .min_access_size = 8,
583 .max_access_size = 8,
587 static const MemoryRegionOps pchip_ops = {
589 .write = pchip_write,
590 .endianness = DEVICE_LITTLE_ENDIAN,
592 .min_access_size = 8,
593 .max_access_size = 8,
596 .min_access_size = 8,
597 .max_access_size = 8,
601 /* A subroutine of typhoon_translate_iommu that builds an IOMMUTLBEntry
602 using the given translated address and mask. */
603 static bool make_iommu_tlbe(hwaddr taddr, hwaddr mask, IOMMUTLBEntry *ret)
605 *ret = (IOMMUTLBEntry) {
606 .target_as = &address_space_memory,
607 .translated_addr = taddr,
614 /* A subroutine of typhoon_translate_iommu that handles scatter-gather
615 translation, given the address of the PTE. */
616 static bool pte_translate(hwaddr pte_addr, IOMMUTLBEntry *ret)
618 uint64_t pte = address_space_ldq(&address_space_memory, pte_addr,
619 MEMTXATTRS_UNSPECIFIED, NULL);
621 /* Check valid bit. */
622 if ((pte & 1) == 0) {
626 return make_iommu_tlbe((pte & 0x3ffffe) << 12, 0x1fff, ret);
629 /* A subroutine of typhoon_translate_iommu that handles one of the
630 four single-address-cycle translation windows. */
631 static bool window_translate(TyphoonWindow *win, hwaddr addr,
634 uint32_t wba = win->wba;
635 uint64_t wsm = win->wsm;
636 uint64_t tba = win->tba;
637 uint64_t wsm_ext = wsm | 0xfffff;
639 /* Check for window disabled. */
640 if ((wba & 1) == 0) {
644 /* Check for window hit. */
645 if ((addr & ~wsm_ext) != (wba & 0xfff00000u)) {
650 /* Scatter-gather translation. */
653 /* See table 10-6, Generating PTE address for PCI DMA Address. */
654 pte_addr = tba & ~(wsm >> 10);
655 pte_addr |= (addr & (wsm | 0xfe000)) >> 10;
656 return pte_translate(pte_addr, ret);
658 /* Direct-mapped translation. */
659 return make_iommu_tlbe(tba & ~wsm_ext, wsm_ext, ret);
663 /* Handle PCI-to-system address translation. */
664 /* TODO: A translation failure here ought to set PCI error codes on the
665 Pchip and generate a machine check interrupt. */
666 static IOMMUTLBEntry typhoon_translate_iommu(IOMMUMemoryRegion *iommu,
668 IOMMUAccessFlags flag)
670 TyphoonPchip *pchip = container_of(iommu, TyphoonPchip, iommu);
674 if (addr <= 0xffffffffu) {
675 /* Single-address cycle. */
677 /* Check for the Window Hole, inhibiting matching. */
678 if ((pchip->ctl & 0x20)
680 && addr <= 0xfffff) {
684 /* Check the first three windows. */
685 for (i = 0; i < 3; ++i) {
686 if (window_translate(&pchip->win[i], addr, &ret)) {
691 /* Check the fourth window for DAC disable. */
692 if ((pchip->win[3].wba & 0x80000000000ull) == 0
693 && window_translate(&pchip->win[3], addr, &ret)) {
697 /* Double-address cycle. */
699 if (addr >= 0x10000000000ull && addr < 0x20000000000ull) {
700 /* Check for the DMA monster window. */
701 if (pchip->ctl & 0x40) {
702 /* See 10.1.4.4; in particular <39:35> is ignored. */
703 make_iommu_tlbe(0, 0x007ffffffffull, &ret);
708 if (addr >= 0x80000000000ull && addr <= 0xfffffffffffull) {
709 /* Check the fourth window for DAC enable and window enable. */
710 if ((pchip->win[3].wba & 0x80000000001ull) == 0x80000000001ull) {
713 pte_addr = pchip->win[3].tba & 0x7ffc00000ull;
714 pte_addr |= (addr & 0xffffe000u) >> 10;
715 if (pte_translate(pte_addr, &ret)) {
723 ret = (IOMMUTLBEntry) { .perm = IOMMU_NONE };
728 static const MemoryRegionIOMMUOps typhoon_iommu_ops = {
729 .translate = typhoon_translate_iommu,
732 static AddressSpace *typhoon_pci_dma_iommu(PCIBus *bus, void *opaque, int devfn)
734 TyphoonState *s = opaque;
735 return &s->pchip.iommu_as;
738 static void typhoon_set_irq(void *opaque, int irq, int level)
740 TyphoonState *s = opaque;
744 /* Set/Reset the bit in CCHIP.DRIR based on IRQ+LEVEL. */
745 drir = s->cchip.drir;
749 drir &= ~(1ull << irq);
751 s->cchip.drir = drir;
753 for (i = 0; i < 4; ++i) {
754 cpu_irq_change(s->cchip.cpu[i], s->cchip.dim[i] & drir);
758 static void typhoon_set_isa_irq(void *opaque, int irq, int level)
760 typhoon_set_irq(opaque, 55, level);
763 static void typhoon_set_timer_irq(void *opaque, int irq, int level)
765 TyphoonState *s = opaque;
768 /* Thankfully, the mc146818rtc code doesn't track the IRQ state,
769 and so we don't have to worry about missing interrupts just
770 because we never actually ACK the interrupt. Just ignore any
771 case of the interrupt level going low. */
776 /* Deliver the interrupt to each CPU, considering each CPU's IIC. */
777 for (i = 0; i < 4; ++i) {
778 AlphaCPU *cpu = s->cchip.cpu[i];
780 uint32_t iic = s->cchip.iic[i];
782 /* ??? The verbage in Section 10.2.2.10 isn't 100% clear.
783 Bit 24 is the OverFlow bit, RO, and set when the count
784 decrements past 0. When is OF cleared? My guess is that
785 OF is actually cleared when the IIC is written, and that
786 the ICNT field always decrements. At least, that's an
787 interpretation that makes sense, and "allows the CPU to
788 determine exactly how mant interval timer ticks were
789 skipped". At least within the next 4M ticks... */
791 iic = ((iic - 1) & 0x1ffffff) | (iic & 0x1000000);
792 s->cchip.iic[i] = iic;
794 if (iic & 0x1000000) {
795 /* Set the ITI bit for this cpu. */
796 s->cchip.misc |= 1 << (i + 4);
797 /* And signal the interrupt. */
798 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_TIMER);
804 static void typhoon_alarm_timer(void *opaque)
806 TyphoonState *s = (TyphoonState *)((uintptr_t)opaque & ~3);
807 int cpu = (uintptr_t)opaque & 3;
809 /* Set the ITI bit for this cpu. */
810 s->cchip.misc |= 1 << (cpu + 4);
811 cpu_interrupt(CPU(s->cchip.cpu[cpu]), CPU_INTERRUPT_TIMER);
814 PCIBus *typhoon_init(ram_addr_t ram_size, ISABus **isa_bus,
816 AlphaCPU *cpus[4], pci_map_irq_fn sys_map_irq)
818 const uint64_t MB = 1024 * 1024;
819 const uint64_t GB = 1024 * MB;
820 MemoryRegion *addr_space = get_system_memory();
827 dev = qdev_create(NULL, TYPE_TYPHOON_PCI_HOST_BRIDGE);
829 s = TYPHOON_PCI_HOST_BRIDGE(dev);
830 phb = PCI_HOST_BRIDGE(dev);
832 s->cchip.misc = 0x800000000ull; /* Revision: Typhoon. */
833 s->pchip.win[3].wba = 2; /* Window 3 SG always enabled. */
835 /* Remember the CPUs so that we can deliver interrupts to them. */
836 for (i = 0; i < 4; i++) {
837 AlphaCPU *cpu = cpus[i];
838 s->cchip.cpu[i] = cpu;
840 cpu->alarm_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
842 (void *)((uintptr_t)s + i));
846 *p_rtc_irq = qemu_allocate_irq(typhoon_set_timer_irq, s, 0);
848 /* Main memory region, 0x00.0000.0000. Real hardware supports 32GB,
849 but the address space hole reserved at this point is 8TB. */
850 memory_region_allocate_system_memory(&s->ram_region, OBJECT(s), "ram",
852 memory_region_add_subregion(addr_space, 0, &s->ram_region);
854 /* TIGbus, 0x801.0000.0000, 1GB. */
855 /* ??? The TIGbus is used for delivering interrupts, and access to
856 the flash ROM. I'm not sure that we need to implement it at all. */
858 /* Pchip0 CSRs, 0x801.8000.0000, 256MB. */
859 memory_region_init_io(&s->pchip.region, OBJECT(s), &pchip_ops, s, "pchip0",
861 memory_region_add_subregion(addr_space, 0x80180000000ULL,
864 /* Cchip CSRs, 0x801.A000.0000, 256MB. */
865 memory_region_init_io(&s->cchip.region, OBJECT(s), &cchip_ops, s, "cchip0",
867 memory_region_add_subregion(addr_space, 0x801a0000000ULL,
870 /* Dchip CSRs, 0x801.B000.0000, 256MB. */
871 memory_region_init_io(&s->dchip_region, OBJECT(s), &dchip_ops, s, "dchip0",
873 memory_region_add_subregion(addr_space, 0x801b0000000ULL,
876 /* Pchip0 PCI memory, 0x800.0000.0000, 4GB. */
877 memory_region_init(&s->pchip.reg_mem, OBJECT(s), "pci0-mem", 4*GB);
878 memory_region_add_subregion(addr_space, 0x80000000000ULL,
881 /* Pchip0 PCI I/O, 0x801.FC00.0000, 32MB. */
882 memory_region_init_io(&s->pchip.reg_io, OBJECT(s), &alpha_pci_ignore_ops,
883 NULL, "pci0-io", 32*MB);
884 memory_region_add_subregion(addr_space, 0x801fc000000ULL,
887 b = pci_register_bus(dev, "pci",
888 typhoon_set_irq, sys_map_irq, s,
889 &s->pchip.reg_mem, &s->pchip.reg_io,
890 0, 64, TYPE_PCI_BUS);
892 qdev_init_nofail(dev);
894 /* Host memory as seen from the PCI side, via the IOMMU. */
895 memory_region_init_iommu(&s->pchip.iommu, OBJECT(s), &typhoon_iommu_ops,
896 "iommu-typhoon", UINT64_MAX);
897 address_space_init(&s->pchip.iommu_as, MEMORY_REGION(&s->pchip.iommu),
899 pci_setup_iommu(b, typhoon_pci_dma_iommu, s);
901 /* Pchip0 PCI special/interrupt acknowledge, 0x801.F800.0000, 64MB. */
902 memory_region_init_io(&s->pchip.reg_iack, OBJECT(s), &alpha_pci_iack_ops,
903 b, "pci0-iack", 64*MB);
904 memory_region_add_subregion(addr_space, 0x801f8000000ULL,
907 /* Pchip0 PCI configuration, 0x801.FE00.0000, 16MB. */
908 memory_region_init_io(&s->pchip.reg_conf, OBJECT(s), &alpha_pci_conf1_ops,
909 b, "pci0-conf", 16*MB);
910 memory_region_add_subregion(addr_space, 0x801fe000000ULL,
913 /* For the record, these are the mappings for the second PCI bus.
914 We can get away with not implementing them because we indicate
915 via the Cchip.CSC<PIP> bit that Pchip1 is not present. */
916 /* Pchip1 PCI memory, 0x802.0000.0000, 4GB. */
917 /* Pchip1 CSRs, 0x802.8000.0000, 256MB. */
918 /* Pchip1 PCI special/interrupt acknowledge, 0x802.F800.0000, 64MB. */
919 /* Pchip1 PCI I/O, 0x802.FC00.0000, 32MB. */
920 /* Pchip1 PCI configuration, 0x802.FE00.0000, 16MB. */
922 /* Init the ISA bus. */
923 /* ??? Technically there should be a cy82c693ub pci-isa bridge. */
927 *isa_bus = isa_bus_new(NULL, get_system_memory(), &s->pchip.reg_io,
929 isa_irqs = i8259_init(*isa_bus,
930 qemu_allocate_irq(typhoon_set_isa_irq, s, 0));
931 isa_bus_irqs(*isa_bus, isa_irqs);
937 static int typhoon_pcihost_init(SysBusDevice *dev)
942 static void typhoon_pcihost_class_init(ObjectClass *klass, void *data)
944 SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
946 k->init = typhoon_pcihost_init;
949 static const TypeInfo typhoon_pcihost_info = {
950 .name = TYPE_TYPHOON_PCI_HOST_BRIDGE,
951 .parent = TYPE_PCI_HOST_BRIDGE,
952 .instance_size = sizeof(TyphoonState),
953 .class_init = typhoon_pcihost_class_init,
956 static void typhoon_register_types(void)
958 type_register_static(&typhoon_pcihost_info);
961 type_init(typhoon_register_types)