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