1 /*-
2 * Copyright (c) 2003 Alan L. Cox <alc@cs.rice.edu>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/param.h>
28 #include <sys/malloc.h>
29 #include <vm/vm.h>
30 #include <vm/vm_param.h>
31 #include <vm/vm_page.h>
32 #include <vm/vm_phys.h>
33 #include <vm/vm_dumpset.h>
34 #include <vm/uma.h>
35 #include <vm/uma_int.h>
36 #include <machine/machdep.h>
37
38 void *
uma_small_alloc(uma_zone_t zone,vm_size_t bytes,int domain,u_int8_t * flags,int wait)39 uma_small_alloc(uma_zone_t zone, vm_size_t bytes, int domain, u_int8_t *flags,
40 int wait)
41 {
42 vm_page_t m;
43 vm_paddr_t pa;
44 void *va;
45
46 *flags = UMA_SLAB_PRIV;
47 m = vm_page_alloc_noobj_domain(domain, malloc2vm_flags(wait) |
48 VM_ALLOC_WIRED);
49 if (m == NULL)
50 return (NULL);
51 pa = m->phys_addr;
52 if ((wait & M_NODUMP) == 0)
53 dump_add_page(pa);
54 va = (void *)PHYS_TO_DMAP(pa);
55 return (va);
56 }
57
58 void
uma_small_free(void * mem,vm_size_t size,u_int8_t flags)59 uma_small_free(void *mem, vm_size_t size, u_int8_t flags)
60 {
61 vm_page_t m;
62 vm_paddr_t pa;
63
64 pa = DMAP_TO_PHYS((vm_offset_t)mem);
65 dump_drop_page(pa);
66 m = PHYS_TO_VM_PAGE(pa);
67 vm_page_unwire_noq(m);
68 vm_page_free(m);
69 }
70