61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* kexec.h for kexec
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*
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* Copyright (C) 2022 Loongson Technology Corporation Limited
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*/
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#ifndef _ASM_KEXEC_H
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#define _ASM_KEXEC_H
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#include <asm/stacktrace.h>
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#include <asm/page.h>
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/* Maximum physical address we can use pages from */
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#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
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/* Maximum address we can reach in physical address mode */
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#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
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/* Maximum address we can use for the control code buffer */
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#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
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/* Reserve a page for the control code buffer */
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#define KEXEC_CONTROL_PAGE_SIZE PAGE_SIZE
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/* The native architecture */
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#define KEXEC_ARCH KEXEC_ARCH_LOONGARCH
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static inline void crash_setup_regs(struct pt_regs *newregs,
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struct pt_regs *oldregs)
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{
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if (oldregs)
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memcpy(newregs, oldregs, sizeof(*newregs));
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else
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prepare_frametrace(newregs);
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}
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#define ARCH_HAS_KIMAGE_ARCH
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struct kimage_arch {
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unsigned long efi_boot;
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unsigned long cmdline_ptr;
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unsigned long systable_ptr;
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};
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typedef void (*do_kexec_t)(unsigned long efi_boot,
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unsigned long cmdline_ptr,
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unsigned long systable_ptr,
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unsigned long start_addr,
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unsigned long first_ind_entry);
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struct kimage;
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extern const unsigned char relocate_new_kernel[];
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extern const size_t relocate_new_kernel_size;
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extern void kexec_reboot(void);
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#ifdef CONFIG_SMP
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extern atomic_t kexec_ready_to_reboot;
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extern const unsigned char kexec_smp_wait[];
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#endif
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#endif /* !_ASM_KEXEC_H */
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