linux/arch/arm/mach-alpine/alpine_cpu_resume.h
Tsahee Zidenberg e9e06f2853 ARM: Alpine: smp support
This patch introduces support for waking up secondary CPU cores on
Alpine platform.

Signed-off-by: Barak Wasserstrom <barak@annapurnalabs.com>
Signed-off-by: Tsahee Zidenberg <tsahee@annapurnalabs.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-03-16 15:24:12 +01:00

39 lines
1.1 KiB
C

/*
* Annapurna labs cpu-resume register structure.
*
* Copyright (C) 2015 Annapurna Labs Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef ALPINE_CPU_RESUME_H_
#define ALPINE_CPU_RESUME_H_
/* Per-cpu regs */
struct al_cpu_resume_regs_per_cpu {
uint32_t flags;
uint32_t resume_addr;
};
/* general regs */
struct al_cpu_resume_regs {
/* Watermark for validating the CPU resume struct */
uint32_t watermark;
uint32_t flags;
struct al_cpu_resume_regs_per_cpu per_cpu[];
};
/* The expected magic number for validating the resume addresses */
#define AL_CPU_RESUME_MAGIC_NUM 0xf0e1d200
#define AL_CPU_RESUME_MAGIC_NUM_MASK 0xffffff00
#endif /* ALPINE_CPU_RESUME_H_ */