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2ffc48fc70
The spinwait booting method should only be used for platforms with older firmware without SBI HSM extension or M-mode firmware because spinwait method can't support cpu hotplug, kexec or sparse hartid. It is better to move the entire spinwait implementation to its own config which can be disabled if required. It is enabled by default to maintain backward compatibility and M-mode Linux. Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
24 lines
543 B
C
24 lines
543 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2019 SiFive, Inc.
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*/
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#ifndef __ASM_HEAD_H
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#define __ASM_HEAD_H
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#include <linux/linkage.h>
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#include <linux/init.h>
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extern atomic_t hart_lottery;
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asmlinkage void do_page_fault(struct pt_regs *regs);
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asmlinkage void __init setup_vm(uintptr_t dtb_pa);
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#ifdef CONFIG_XIP_KERNEL
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asmlinkage void __init __copy_data(void);
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#endif
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#ifdef CONFIG_RISCV_BOOT_SPINWAIT
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extern void *__cpu_spinwait_stack_pointer[];
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extern void *__cpu_spinwait_task_pointer[];
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#endif
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#endif /* __ASM_HEAD_H */
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