diff options
Diffstat (limited to 'arch/arm64/kernel/cpu_ops.c')
-rw-r--r-- | arch/arm64/kernel/cpu_ops.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c new file mode 100644 index 000000000000..e2652aadd9ea --- /dev/null +++ b/arch/arm64/kernel/cpu_ops.c | |||
@@ -0,0 +1,47 @@ | |||
1 | /* | ||
2 | * CPU kernel entry/exit control | ||
3 | * | ||
4 | * Copyright (C) 2013 ARM Ltd. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | * | ||
10 | * This program is distributed in the hope that it will be useful, | ||
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
13 | * GNU General Public License for more details. | ||
14 | * | ||
15 | * You should have received a copy of the GNU General Public License | ||
16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | */ | ||
18 | |||
19 | #include <asm/cpu_ops.h> | ||
20 | #include <linux/string.h> | ||
21 | |||
22 | extern const struct cpu_operations smp_spin_table_ops; | ||
23 | extern const struct cpu_operations cpu_psci_ops; | ||
24 | |||
25 | const struct cpu_operations *cpu_ops[NR_CPUS]; | ||
26 | |||
27 | static const struct cpu_operations *supported_cpu_ops[] __initconst = { | ||
28 | #ifdef CONFIG_SMP | ||
29 | &smp_spin_table_ops, | ||
30 | &cpu_psci_ops, | ||
31 | #endif | ||
32 | NULL, | ||
33 | }; | ||
34 | |||
35 | const struct cpu_operations * __init cpu_get_ops(const char *name) | ||
36 | { | ||
37 | const struct cpu_operations **ops = supported_cpu_ops; | ||
38 | |||
39 | while (*ops) { | ||
40 | if (!strcmp(name, (*ops)->name)) | ||
41 | return *ops; | ||
42 | |||
43 | ops++; | ||
44 | } | ||
45 | |||
46 | return NULL; | ||
47 | } | ||