NAME
uvm_km_suballoc,
uvm_km_free —
raw kernel memory or address space
allocator
SYNOPSIS
#include
<sys/param.h>
#include <uvm/uvm.h>
uvm_km_suballoc(vm_map_t
map, vaddr_t *min,
vaddr_t *max ,
vsize_t size,
int flags,
boolean_t fixed,
vm_map_t submap);
void
uvm_km_free(vm_map_t
map, vaddr_t addr,
vsize_t size);
DESCRIPTION
The
uvm_km_suballoc()
function allocates submap (with the specified flags,
as described above) from map, creating a new map if
submap is NULL. The addresses
of the submap can be specified exactly by setting the
fixed argument to non-zero, which causes the
min argument to specify the beginning of the address
in the submap. If fixed is zero, any address of size
size will be allocated from map
and the start and end addresses returned in min and
max.
The
uvm_km_free()
function free size bytes of memory in the kernel map,
starting at address addr.