platsmp.c (9938b04472d5c59f8bd8152a548533a8599596a2) platsmp.c (64fc2a947a9873700929ec0ef02b4654a04e0476)
1/*
2 * SMP operations for Alpine platform.
3 *
4 * Copyright (C) 2015 Annapurna Labs 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 as published by
8 * the Free Software Foundation; either version 2 of the License, or

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22#include <asm/smp_plat.h>
23
24#include "alpine_cpu_pm.h"
25
26static int alpine_boot_secondary(unsigned int cpu, struct task_struct *idle)
27{
28 phys_addr_t addr;
29
1/*
2 * SMP operations for Alpine platform.
3 *
4 * Copyright (C) 2015 Annapurna Labs 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 as published by
8 * the Free Software Foundation; either version 2 of the License, or

--- 13 unchanged lines hidden (view full) ---

22#include <asm/smp_plat.h>
23
24#include "alpine_cpu_pm.h"
25
26static int alpine_boot_secondary(unsigned int cpu, struct task_struct *idle)
27{
28 phys_addr_t addr;
29
30 addr = virt_to_phys(secondary_startup);
30 addr = __pa_symbol(secondary_startup);
31
32 if (addr > (phys_addr_t)(uint32_t)(-1)) {
33 pr_err("FAIL: resume address over 32bit (%pa)", &addr);
34 return -EINVAL;
35 }
36
37 return alpine_cpu_wakeup(cpu_logical_map(cpu), (uint32_t)addr);
38}
39
40static void __init alpine_smp_prepare_cpus(unsigned int max_cpus)
41{
42 alpine_cpu_pm_init();
43}
44
45static const struct smp_operations alpine_smp_ops __initconst = {
46 .smp_prepare_cpus = alpine_smp_prepare_cpus,
47 .smp_boot_secondary = alpine_boot_secondary,
48};
49CPU_METHOD_OF_DECLARE(alpine_smp, "al,alpine-smp", &alpine_smp_ops);
31
32 if (addr > (phys_addr_t)(uint32_t)(-1)) {
33 pr_err("FAIL: resume address over 32bit (%pa)", &addr);
34 return -EINVAL;
35 }
36
37 return alpine_cpu_wakeup(cpu_logical_map(cpu), (uint32_t)addr);
38}
39
40static void __init alpine_smp_prepare_cpus(unsigned int max_cpus)
41{
42 alpine_cpu_pm_init();
43}
44
45static const struct smp_operations alpine_smp_ops __initconst = {
46 .smp_prepare_cpus = alpine_smp_prepare_cpus,
47 .smp_boot_secondary = alpine_boot_secondary,
48};
49CPU_METHOD_OF_DECLARE(alpine_smp, "al,alpine-smp", &alpine_smp_ops);