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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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7b181446c6
Add support for setting the cold boot address of core 1 and the warm boot addresses of cores 0 and 1 using a secure domain call. Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
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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 version 2 and
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* only version 2 as published by the Free Software Foundation.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include "scm.h"
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#include "scm-boot.h"
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/*
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* Set the cold/warm boot address for one of the CPU cores.
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*/
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int scm_set_boot_addr(phys_addr_t addr, int flags)
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{
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struct {
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unsigned int flags;
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phys_addr_t addr;
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} cmd;
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cmd.addr = addr;
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cmd.flags = flags;
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return scm_call(SCM_SVC_BOOT, SCM_BOOT_ADDR,
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&cmd, sizeof(cmd), NULL, 0);
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}
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EXPORT_SYMBOL(scm_set_boot_addr);
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