/*
* rbus_tag_t rbus_fakeparent_mem(struct pci_attach_args *pa)
*
* This function makes an rbus tag for memory space. This rbus tag
* shares the all memory region of ex_iomem.
*/
rbus_tag_t
rbus_pccbb_parent_mem(struct pci_attach_args *pa)
{
bus_addr_t start;
bus_size_t size;
extern struct extent *iomem_ex;
struct extent *ex = iomem_ex;
#if defined(PCI_ADDR_FIXUP)
if (pciaddr.extent_mem != NULL)
ex = pciaddr.extent_mem;
#endif
start = ex->ex_start;
/*
* XXX: unfortunately, iomem_ex cannot be used for the dynamic
* bus_space allocation. There are some hidden memory (or
* some obstacles which are not recognised by the kernel) in
* the region governed by iomem_ex. So I decide to use only
* very high address region.
*
* If pcibios_addr_fixup() succeeded, the PCI device is using an area
* which is not recognised by the kernel as already reserved.
*/
if (start < rbus_min_start)
start = rbus_min_start;
size = ex->ex_end - start;
return rbus_new_root_share(pa->pa_memt, ex, start, size, 0);
}
/*
* This function makes an rbus tag for memory space. This rbus tag
* shares the all memory region of ex_iomem.
*/
rbus_tag_t
rbus_pccbb_parent_mem(struct device *self, struct pci_attach_args *pa)
{
bus_addr_t start, rbus_min_start;
bus_size_t size;
struct extent *ex;
size = RBUS_MEM_SIZE;
start = rbus_min_start = rbus_min_start_hint();
#if NPCIBIOS > 0
if ((ex = pciaddr_search(PCIADDR_SEARCH_MEM, &start, size)) == NULL)
#endif
{
extern struct extent *iomem_ex;
ex = iomem_ex;
start = ex->ex_start;
/* XXX: unfortunately, iomem_ex cannot be used for the
* dynamic bus_space allocation. There are some
* hidden memory (or some obstacles which do not
* recognised by the kernel) in the region governed by
* iomem_ex. So I decide to use only very high
* address region.
*/
if (start < rbus_min_start)
start = rbus_min_start;
size = ex->ex_end - start;
}
return (rbus_new_root_share(pa->pa_memt, ex, start, size, 0));
}
rbus_tag_t
rbus_pccbb_parent_mem(struct device *self, struct pci_attach_args *pa)
{
macppc_cardbus_init(pa->pa_pc, pa->pa_tag);
return (rbus_new_root_share(pa->pa_memt, pa->pa_memex,
0x00000000, 0xffffffff));
}
rbus_tag_t
rbus_pccbb_parent_mem(struct device *self, struct pci_attach_args *pa)
{
struct extent *ex = pa->pa_memex;
bus_addr_t start;
bus_size_t size;
if (ex == NULL)
return &rbus_null;
start = RBUS_MEM_START;
size = ex->ex_end - start;
return (rbus_new_root_share(pa->pa_memt, ex, start, size));
}
rbus_tag_t
rbus_pccbb_parent_io(struct device *self, struct pci_attach_args *pa)
{
struct extent *ex;
bus_addr_t start;
bus_size_t size;
size = RBUS_IO_SIZE;
if ((ex = pciaddr_search(PCIADDR_SEARCH_IO, self, &start, size)) ==
NULL)
{
/* XXX */
printf("failed\n");
}
return rbus_new_root_share(pa->pa_iot, ex, start, size, 0);
}
rbus_tag_t
rbus_pccbb_parent_mem(struct device *self, struct pci_attach_args *pa)
{
bus_addr_t start;
bus_size_t size;
struct extent *ex;
macppc_cardbus_init(pa->pa_pc, pa->pa_tag);
size = RBUS_MEM_SIZE;
if ((ex = pciaddr_search(PCIADDR_SEARCH_MEM, self, &start, size)) ==
NULL)
{
/* XXX */
printf("failed\n");
}
return rbus_new_root_share(pa->pa_memt, ex, start, size, 0);
}
rbus_tag_t
rbus_pccbb_parent_io(struct device *self, struct pci_attach_args *pa)
{
bus_addr_t start;
bus_size_t size;
struct extent *ex;
size = RBUS_IO_SIZE;
start = RBUS_IO_START;
#if NPCIBIOS > 0
if ((ex = pciaddr_search(PCIADDR_SEARCH_IO, &start, size)) == NULL)
#endif
{
extern struct extent *ioport_ex;
ex = ioport_ex;
}
return (rbus_new_root_share(pa->pa_iot, ex, start, size, 0));
}
/*
* rbus_tag_t rbus_pccbb_parent_io(struct pci_attach_args *pa)
*/
rbus_tag_t
rbus_pccbb_parent_io(struct pci_attach_args *pa)
{
bus_addr_t start;
bus_size_t size;
rbus_tag_t ret;
extern struct extent *ioport_ex;
struct extent *ex = ioport_ex;
#if defined(PCI_ADDR_FIXUP)
if (pciaddr.extent_port != NULL)
ex = pciaddr.extent_port;
#endif
start = RBUS_IO_BASE;
size = RBUS_IO_SIZE;
ret = rbus_new_root_share(pa->pa_iot, ex, start, size, 0);
if (ret == NULL)
panic("failed to alloc I/O space");
return ret;
}
rbus_tag_t
rbus_pccbb_parent_io(struct device *self, struct pci_attach_args *pa)
{
struct extent *ex = pa->pa_ioex;
bus_addr_t start;
bus_size_t size;
if (ex == NULL)
return &rbus_null;
start = ex->ex_start;
if (ex == pciio_ex) {
/*
* We're on the root bus, or behind a subtractive
* decode PCI-PCI bridge. To avoid conflicts with
* onboard legacy devices, we only make a subregion
* available.
*/
start = max(start, RBUS_IO_START);
}
size = ex->ex_end - start;
return (rbus_new_root_share(pa->pa_iot, ex, start, size));
}
rbus_tag_t
rbus_pccbb_parent_io(struct device *self, struct pci_attach_args *pa)
{
return (rbus_new_root_share(pa->pa_iot, pa->pa_ioex,
0x0000, 0xffff));
}
