projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| e2f2594b | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 1c51ed4f MD |
2 | /* |
| 3 | * SMP support for R-Mobile / SH-Mobile | |
| 4 | * | |
| 5 | * Copyright (C) 2010 Magnus Damm | |
| c413521e | 6 | * Copyright (C) 2011 Paul Mundt |
| 1c51ed4f MD |
7 | * |
| 8 | * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved | |
| 1c51ed4f MD |
9 | */ |
| 10 | #include <linux/init.h> | |
| cc61591e MD |
11 | #include <asm/cacheflush.h> |
| 12 | #include <asm/smp_plat.h> | |
| fd44aa5e | 13 | #include "common.h" |
| 1c51ed4f | 14 | |
| cc61591e MD |
15 | extern unsigned long shmobile_smp_fn[]; |
| 16 | extern unsigned long shmobile_smp_arg[]; | |
| 17 | extern unsigned long shmobile_smp_mpidr[]; | |
| 18 | ||
| 19 | void shmobile_smp_hook(unsigned int cpu, unsigned long fn, unsigned long arg) | |
| 20 | { | |
| 21 | shmobile_smp_fn[cpu] = 0; | |
| 22 | flush_cache_all(); | |
| 23 | ||
| 24 | shmobile_smp_mpidr[cpu] = cpu_logical_map(cpu); | |
| 25 | shmobile_smp_fn[cpu] = fn; | |
| 26 | shmobile_smp_arg[cpu] = arg; | |
| 27 | flush_cache_all(); | |
| 28 | } | |
| 5c4dfcd6 MD |
29 | |
| 30 | #ifdef CONFIG_HOTPLUG_CPU | |
| 787047ee | 31 | bool shmobile_smp_cpu_can_disable(unsigned int cpu) |
| 5c4dfcd6 | 32 | { |
| 787047ee | 33 | return true; /* Hotplug of any CPU is supported */ |
| 5c4dfcd6 MD |
34 | } |
| 35 | #endif |