raven: Add PCI bus mastering address space
This has been tested on Linux 2.4/PPC with the lsi53c895a SCSI adapter. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
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@ -59,6 +59,10 @@ typedef struct PRePPCIState {
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MemoryRegion pci_io_non_contiguous;
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MemoryRegion pci_memory;
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MemoryRegion pci_intack;
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MemoryRegion bm;
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MemoryRegion bm_ram_alias;
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MemoryRegion bm_pci_memory_alias;
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AddressSpace bm_as;
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RavenPCIState pci_dev;
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int contiguous_map;
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@ -190,6 +194,14 @@ static void prep_set_irq(void *opaque, int irq_num, int level)
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qemu_set_irq(pic[irq_num] , level);
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}
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static AddressSpace *raven_pcihost_set_iommu(PCIBus *bus, void *opaque,
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int devfn)
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{
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PREPPCIState *s = opaque;
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return &s->bm_as;
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}
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static void raven_change_gpio(void *opaque, int n, int level)
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{
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PREPPCIState *s = opaque;
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@ -255,6 +267,18 @@ static void raven_pcihost_initfn(Object *obj)
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pci_bus_new_inplace(&s->pci_bus, sizeof(s->pci_bus), DEVICE(obj), NULL,
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&s->pci_memory, &s->pci_io, 0, TYPE_PCI_BUS);
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/* Bus master address space */
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memory_region_init(&s->bm, obj, "bm-raven", UINT32_MAX);
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memory_region_init_alias(&s->bm_pci_memory_alias, obj, "bm-pci-memory",
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&s->pci_memory, 0,
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memory_region_size(&s->pci_memory));
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memory_region_init_alias(&s->bm_ram_alias, obj, "bm-system",
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get_system_memory(), 0, 0x80000000);
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memory_region_add_subregion(&s->bm, 0 , &s->bm_pci_memory_alias);
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memory_region_add_subregion(&s->bm, 0x80000000, &s->bm_ram_alias);
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address_space_init(&s->bm_as, &s->bm, "raven-bm");
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pci_setup_iommu(&s->pci_bus, raven_pcihost_set_iommu, s);
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h->bus = &s->pci_bus;
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object_initialize(&s->pci_dev, sizeof(s->pci_dev), TYPE_RAVEN_PCI_DEVICE);
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