blob: 112091684c2290889f72c5a7151b9e5ed30ffcec (
plain)
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
|
/*
* PSCI SMP initialisation
*
* Copyright (C) 2013 ARM Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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 <linux/init.h>
#include <linux/of.h>
#include <linux/smp.h>
#include <asm/psci.h>
static int __init smp_psci_init_cpu(struct device_node *dn, int cpu)
{
return 0;
}
static int __init smp_psci_prepare_cpu(int cpu)
{
int err;
if (!psci_ops.cpu_on) {
pr_err("psci: no cpu_on method, not booting CPU%d\n", cpu);
return -ENODEV;
}
err = psci_ops.cpu_on(cpu, __pa(secondary_holding_pen));
if (err) {
pr_err("psci: failed to boot CPU%d (%d)\n", cpu, err);
return err;
}
return 0;
}
const struct smp_enable_ops smp_psci_ops __initconst = {
.name = "psci",
.init_cpu = smp_psci_init_cpu,
.prepare_cpu = smp_psci_prepare_cpu,
};
|
