static int
bs_gen_map(bus_addr_t addr, bus_size_t size, int flags,
bus_space_handle_t *bshp)
{
vm_memattr_t ma;
/*
* Record what we did if we haven't enabled the MMU yet. We
* will need to remap it as soon as the MMU comes up.
*/
if (!pmap_bootstrapped) {
KASSERT(earlyboot_map_idx < MAX_EARLYBOOT_MAPPINGS,
("%s: too many early boot mapping requests", __func__));
earlyboot_mappings[earlyboot_map_idx].addr = addr;
earlyboot_mappings[earlyboot_map_idx].virt =
pmap_early_io_map(addr, size);
earlyboot_mappings[earlyboot_map_idx].size = size;
earlyboot_mappings[earlyboot_map_idx].flags = flags;
*bshp = earlyboot_mappings[earlyboot_map_idx].virt;
earlyboot_map_idx++;
} else {
ma = VM_MEMATTR_DEFAULT;
switch (flags) {
case BUS_SPACE_MAP_CACHEABLE:
ma = VM_MEMATTR_CACHEABLE;
break;
case BUS_SPACE_MAP_PREFETCHABLE:
ma = VM_MEMATTR_PREFETCHABLE;
break;
}
*bshp = (bus_space_handle_t)pmap_mapdev_attr(addr, size, ma);
}
return (0);
}
static int
booke_check_for_fdt(uint32_t arg1, vm_offset_t *dtbp)
{
void *ptr;
if (arg1 % 8 != 0)
return (-1);
ptr = (void *)pmap_early_io_map(arg1, PAGE_SIZE);
if (fdt_check_header(ptr) != 0)
return (-1);
*dtbp = (vm_offset_t)ptr;
return (0);
}