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 */
up_send_ipi_single(int cpu,unsigned int action)16 static void up_send_ipi_single(int cpu, unsigned int action)
17 {
18 panic(KERN_ERR "%s called", __func__);
19 }
20
up_send_ipi_mask(const struct cpumask * mask,unsigned int action)21 static inline void up_send_ipi_mask(const struct cpumask *mask,
22 unsigned int action)
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 */
up_init_secondary(void)31 static void __cpuinit up_init_secondary(void)
32 {
33 }
34
up_smp_finish(void)35 static void __cpuinit up_smp_finish(void)
36 {
37 }
38
39 /* Hook for after all CPUs are online */
up_cpus_done(void)40 static void up_cpus_done(void)
41 {
42 }
43
44 /*
45 * Firmware CPU startup hook
46 */
up_boot_secondary(int cpu,struct task_struct * idle)47 static void __cpuinit up_boot_secondary(int cpu, struct task_struct *idle)
48 {
49 }
50
up_smp_setup(void)51 static void __init up_smp_setup(void)
52 {
53 }
54
up_prepare_cpus(unsigned int max_cpus)55 static void __init up_prepare_cpus(unsigned int max_cpus)
56 {
57 }
58
59 #ifdef CONFIG_HOTPLUG_CPU
up_cpu_disable(void)60 static int up_cpu_disable(void)
61 {
62 return -ENOSYS;
63 }
64
up_cpu_die(unsigned int cpu)65 static void up_cpu_die(unsigned int cpu)
66 {
67 BUG();
68 }
69 #endif
70
71 struct plat_smp_ops up_smp_ops = {
72 .send_ipi_single = up_send_ipi_single,
73 .send_ipi_mask = up_send_ipi_mask,
74 .init_secondary = up_init_secondary,
75 .smp_finish = up_smp_finish,
76 .cpus_done = up_cpus_done,
77 .boot_secondary = up_boot_secondary,
78 .smp_setup = up_smp_setup,
79 .prepare_cpus = up_prepare_cpus,
80 #ifdef CONFIG_HOTPLUG_CPU
81 .cpu_disable = up_cpu_disable,
82 .cpu_die = up_cpu_die,
83 #endif
84 };
85