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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e9e06f2853
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>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/*
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* Annapurna labs cpu-resume register structure.
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*
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* Copyright (C) 2015 Annapurna Labs Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef ALPINE_CPU_RESUME_H_
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#define ALPINE_CPU_RESUME_H_
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/* Per-cpu regs */
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struct al_cpu_resume_regs_per_cpu {
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uint32_t flags;
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uint32_t resume_addr;
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};
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/* general regs */
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struct al_cpu_resume_regs {
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/* Watermark for validating the CPU resume struct */
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uint32_t watermark;
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uint32_t flags;
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struct al_cpu_resume_regs_per_cpu per_cpu[];
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};
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/* The expected magic number for validating the resume addresses */
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#define AL_CPU_RESUME_MAGIC_NUM 0xf0e1d200
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#define AL_CPU_RESUME_MAGIC_NUM_MASK 0xffffff00
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#endif /* ALPINE_CPU_RESUME_H_ */
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