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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>
This commit is contained in:
Hervé Poussineau 2014-03-17 23:00:23 +01:00 committed by Andreas Färber
parent 1fe9e2626f
commit d16644ec4c
1 changed files with 24 additions and 0 deletions
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24
hw/pci-host/prep.c
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@ -59,6 +59,10 @@ typedef struct PRePPCIState {
MemoryRegion pci_io_non_contiguous;
MemoryRegion pci_memory;
MemoryRegion pci_intack;
MemoryRegion bm;
MemoryRegion bm_ram_alias;
MemoryRegion bm_pci_memory_alias;
AddressSpace bm_as;
RavenPCIState pci_dev;
int contiguous_map;
@ -190,6 +194,14 @@ static void prep_set_irq(void *opaque, int irq_num, int level)
qemu_set_irq(pic[irq_num] , level);
}
static AddressSpace *raven_pcihost_set_iommu(PCIBus *bus, void *opaque,
int devfn)
{
PREPPCIState *s = opaque;
return &s->bm_as;
}
static void raven_change_gpio(void *opaque, int n, int level)
{
PREPPCIState *s = opaque;
@ -255,6 +267,18 @@ static void raven_pcihost_initfn(Object *obj)
pci_bus_new_inplace(&s->pci_bus, sizeof(s->pci_bus), DEVICE(obj), NULL,
&s->pci_memory, &s->pci_io, 0, TYPE_PCI_BUS);
/* Bus master address space */
memory_region_init(&s->bm, obj, "bm-raven", UINT32_MAX);
memory_region_init_alias(&s->bm_pci_memory_alias, obj, "bm-pci-memory",
&s->pci_memory, 0,
memory_region_size(&s->pci_memory));
memory_region_init_alias(&s->bm_ram_alias, obj, "bm-system",
get_system_memory(), 0, 0x80000000);
memory_region_add_subregion(&s->bm, 0 , &s->bm_pci_memory_alias);
memory_region_add_subregion(&s->bm, 0x80000000, &s->bm_ram_alias);
address_space_init(&s->bm_as, &s->bm, "raven-bm");
pci_setup_iommu(&s->pci_bus, raven_pcihost_set_iommu, s);
h->bus = &s->pci_bus;
object_initialize(&s->pci_dev, sizeof(s->pci_dev), TYPE_RAVEN_PCI_DEVICE);