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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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7ad71b61e7
Convert the highbank platform to use struct smp_operations to provide its SMP and CPU hotplug operations. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/*
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* Copyright 2011 Calxeda, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/smp.h>
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#include <asm/smp_scu.h>
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#include <asm/cacheflush.h>
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#include "core.h"
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extern void secondary_startup(void);
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/*
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* platform-specific code to shutdown a CPU
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*
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*/
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void __ref highbank_cpu_die(unsigned int cpu)
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{
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flush_cache_all();
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highbank_set_cpu_jump(cpu, secondary_startup);
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scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
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cpu_do_idle();
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/* We should never return from idle */
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panic("highbank: cpu %d unexpectedly exit from shutdown\n", cpu);
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}
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