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/*
* Copyright (C) 2012 Regents of the University of California
*
* 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, version 2.
*
* 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 _ASM_RISCV_SMP_H
#define _ASM_RISCV_SMP_H
/* This both needs asm-offsets.h and is used when generating it. */
#ifndef GENERATING_ASM_OFFSETS
#include <asm/asm-offsets.h>
#endif
#include <linux/cpumask.h>
#include <linux/irqreturn.h>
#ifdef CONFIG_SMP
/* SMP initialization hook for setup_arch */
void __init setup_smp(void);
/* Hook for the generic smp_call_function_many() routine. */
void arch_send_call_function_ipi_mask(struct cpumask *mask);
/* Hook for the generic smp_call_function_single() routine. */
void arch_send_call_function_single_ipi(int cpu);
/*
* This is particularly ugly: it appears we can't actually get the definition
* of task_struct here, but we need access to the CPU this task is running on.
* Instead of using C we're using asm-offsets.h to get the current processor
* ID.
*/
#define raw_smp_processor_id() (*((int*)((char*)get_current() + TASK_TI_CPU)))
#endif /* CONFIG_SMP */
#endif /* _ASM_RISCV_SMP_H */
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