Function contig_alloc

freebsd/vm/uma_core.c:1858–1866

* Allocate physically contiguous pages. */

 * Allocate physically contiguous pages.
 */
static void *
contig_alloc(uma_zone_t zone, vm_size_t bytes, int domain, uint8_t *pflag,
    int wait)
{

	*pflag = UMA_SLAB_KERNEL;
	return ((void *)kmem_alloc_contig_domainset(DOMAINSET_FIXED(domain),
	    bytes, wait, 0, ~(vm_paddr_t)0, 1, 0, VM_MEMATTR_DEFAULT));
}
#else
static void *
pcpu_page_alloc(uma_zone_t zone, vm_size_t bytes, int domain, uint8_t *pflag,