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940f6b48 RB |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 2006, 07 by Ralf Baechle (ralf@linux-mips.org) | |
7 | * | |
8 | * Symmetric Uniprocessor (TM) Support | |
9 | */ | |
10 | #include <linux/kernel.h> | |
11 | #include <linux/sched.h> | |
12 | ||
13 | /* | |
14 | * Send inter-processor interrupt | |
15 | */ | |
1451a395 | 16 | static void up_send_ipi_single(int cpu, unsigned int action) |
940f6b48 RB |
17 | { |
18 | panic(KERN_ERR "%s called", __func__); | |
19 | } | |
20 | ||
48a048fe RR |
21 | static inline void up_send_ipi_mask(const struct cpumask *mask, |
22 | unsigned int action) | |
940f6b48 RB |
23 | { |
24 | panic(KERN_ERR "%s called", __func__); | |
25 | } | |
26 | ||
27 | /* | |
28 | * After we've done initial boot, this function is called to allow the | |
29 | * board code to clean up state, if needed | |
30 | */ | |
078a55fc | 31 | static void up_init_secondary(void) |
940f6b48 RB |
32 | { |
33 | } | |
34 | ||
078a55fc | 35 | static void up_smp_finish(void) |
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36 | { |
37 | } | |
38 | ||
940f6b48 RB |
39 | /* |
40 | * Firmware CPU startup hook | |
41 | */ | |
078a55fc | 42 | static void up_boot_secondary(int cpu, struct task_struct *idle) |
940f6b48 RB |
43 | { |
44 | } | |
45 | ||
1451a395 | 46 | static void __init up_smp_setup(void) |
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47 | { |
48 | } | |
49 | ||
1451a395 | 50 | static void __init up_prepare_cpus(unsigned int max_cpus) |
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51 | { |
52 | } | |
53 | ||
1b2bc75c RB |
54 | #ifdef CONFIG_HOTPLUG_CPU |
55 | static int up_cpu_disable(void) | |
56 | { | |
57 | return -ENOSYS; | |
58 | } | |
59 | ||
60 | static void up_cpu_die(unsigned int cpu) | |
61 | { | |
62 | BUG(); | |
63 | } | |
64 | #endif | |
65 | ||
940f6b48 RB |
66 | struct plat_smp_ops up_smp_ops = { |
67 | .send_ipi_single = up_send_ipi_single, | |
68 | .send_ipi_mask = up_send_ipi_mask, | |
69 | .init_secondary = up_init_secondary, | |
70 | .smp_finish = up_smp_finish, | |
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71 | .boot_secondary = up_boot_secondary, |
72 | .smp_setup = up_smp_setup, | |
73 | .prepare_cpus = up_prepare_cpus, | |
1b2bc75c RB |
74 | #ifdef CONFIG_HOTPLUG_CPU |
75 | .cpu_disable = up_cpu_disable, | |
76 | .cpu_die = up_cpu_die, | |
77 | #endif | |
940f6b48 | 78 | }; |