kern_return_t IOMapPages(vm_map_t map, mach_vm_address_t va, mach_vm_address_t pa,
mach_vm_size_t length, unsigned int options)
{
vm_prot_t prot;
unsigned int flags;
ppnum_t pagenum;
pmap_t pmap = map->pmap;
prot = (options & kIOMapReadOnly)
? VM_PROT_READ : (VM_PROT_READ|VM_PROT_WRITE);
pagenum = (ppnum_t)atop_64(pa);
switch(options & kIOMapCacheMask ) { /* What cache mode do we need? */
case kIOMapDefaultCache:
default:
flags = IODefaultCacheBits(pa);
break;
case kIOMapInhibitCache:
flags = VM_WIMG_IO;
break;
case kIOMapWriteThruCache:
flags = VM_WIMG_WTHRU;
break;
case kIOMapWriteCombineCache:
flags = VM_WIMG_WCOMB;
break;
case kIOMapCopybackCache:
flags = VM_WIMG_COPYBACK;
break;
case kIOMapCopybackInnerCache:
flags = VM_WIMG_INNERWBACK;
break;
}
pmap_set_cache_attributes(pagenum, flags);
vm_map_set_cache_attr(map, (vm_map_offset_t)va);
// Set up a block mapped area
pmap_map_block(pmap, va, pagenum, (uint32_t) atop_64(round_page_64(length)), prot, 0, 0);
return( KERN_SUCCESS );
}
__private_extern__
uint32_t chudxnu_phys_addr_wimg(uint64_t phys_addr)
{
return IODefaultCacheBits(phys_addr);
}
