1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* Copyright (c) 2013 Richard Braun.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <kern/bitmap.h>
#include <kern/cpumap.h>
#include <kern/error.h>
#include <kern/kmem.h>
#include <kern/stddef.h>
static struct kmem_cache cpumap_cache;
void
cpumap_setup(void)
{
kmem_cache_init(&cpumap_cache, "cpumap", sizeof(struct cpumap),
0, NULL, NULL, NULL, 0);
}
int
cpumap_create(struct cpumap **cpumapp)
{
struct cpumap *cpumap;
cpumap = kmem_cache_alloc(&cpumap_cache);
if (cpumap == NULL)
return ERROR_NOMEM;
*cpumapp = cpumap;
return 0;
}
void
cpumap_destroy(struct cpumap *cpumap)
{
kmem_cache_free(&cpumap_cache, cpumap);
}
int
cpumap_check(const struct cpumap *cpumap)
{
int index;
index = bitmap_find_first(cpumap->cpus, cpu_count());
if (index == -1)
return ERROR_INVAL;
return 0;
}
|
