void
pci_bridge_foreach(pci_chipset_tag_t pc, int minbus, int maxbus,
void (*func)(pci_chipset_tag_t, pcitag_t, void *), void *ctx)
{
struct pci_bridge_hook_arg bridge_hook;
bridge_hook.func = func;
bridge_hook.arg = ctx;
pci_device_foreach_min(pc, minbus, maxbus, pci_bridge_hook,
&bridge_hook);
}
void
pci_addr_fixup(pci_chipset_tag_t pc, int maxbus)
{
extern paddr_t avail_end;
const char *verbose_header =
"[%s]-----------------------\n"
" device vendor product\n"
" register space address size\n"
"--------------------------------------------\n";
const char *verbose_footer =
"--------------------------[%3d devices bogus]\n";
const struct {
bus_addr_t start;
bus_size_t size;
const char *name;
} system_reserve [] = {
{ 0xfec00000, 0x100000, "I/O APIC" },
{ 0xfee00000, 0x100000, "Local APIC" },
{ 0xfffe0000, 0x20000, "BIOS PROM" },
{ 0, 0, 0 }, /* terminator */
}, *srp;
paddr_t start;
int error;
pciaddr.extent_mem = extent_create("PCI I/O memory space",
PCIADDR_MEM_START,
PCIADDR_MEM_END,
0, 0, EX_NOWAIT);
KASSERT(pciaddr.extent_mem);
pciaddr.extent_port = extent_create("PCI I/O port space",
PCIADDR_PORT_START,
PCIADDR_PORT_END,
0, 0, EX_NOWAIT);
KASSERT(pciaddr.extent_port);
/*
* 1. check & reserve system BIOS setting.
*/
aprint_debug(verbose_header, "System BIOS Setting");
pci_device_foreach(pc, maxbus, pciaddr_resource_reserve, NULL);
aprint_debug(verbose_footer, pciaddr.nbogus);
/*
* 2. reserve non-PCI area.
*/
for (srp = system_reserve; srp->size; srp++) {
error = extent_alloc_region(pciaddr.extent_mem, srp->start,
srp->size,
EX_NOWAIT| EX_MALLOCOK);
if (error != 0) {
aprint_error("WARNING: can't reserve area for %s.\n",
srp->name);
}
}
/*
* 3. determine allocation space
*/
start = x86_round_page(avail_end + 1);
if (start < PCIADDR_ISAMEM_RESERVE)
start = PCIADDR_ISAMEM_RESERVE;
pciaddr.mem_alloc_start = (start + 0x100000 + 1) & ~(0x100000 - 1);
pciaddr.port_alloc_start = PCIADDR_ISAPORT_RESERVE;
aprint_debug(" Physical memory end: 0x%08x\n PCI memory mapped I/O "
"space start: 0x%08x\n", (unsigned)avail_end,
(unsigned)pciaddr.mem_alloc_start);
if (pciaddr.nbogus == 0)
return; /* no need to fixup */
/*
* 4. do fixup
*/
aprint_debug(verbose_header, "PCIBIOS fixup stage");
pciaddr.nbogus = 0;
pci_device_foreach_min(pc, 0, maxbus, pciaddr_resource_allocate, NULL);
aprint_debug(verbose_footer, pciaddr.nbogus);
}
void
pci_device_foreach(pci_chipset_tag_t pc, int maxbus,
void (*func)(pci_chipset_tag_t, pcitag_t, void *), void *context)
{
pci_device_foreach_min(pc, 0, maxbus, func, context);
}
