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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667/* SPDX-License-Identifier: GPL-2.0 */#ifndef LINUX_CRASH_RESERVE_H#define LINUX_CRASH_RESERVE_H
#include <linux/linkage.h>#include <linux/elfcore.h>#include <linux/elf.h>#ifdef CONFIG_ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION#include <asm/crash_reserve.h>#endif
/* Location of a reserved region to hold the crash kernel. */extern struct resource crashk_res;extern struct resource crashk_low_res;extern struct range crashk_cma_ranges[];#if defined(CONFIG_CMA) && defined(CONFIG_ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION)#define CRASHKERNEL_CMA#define CRASHKERNEL_CMA_RANGES_MAX 4extern int crashk_cma_cnt;#else#define crashk_cma_cnt 0#define CRASHKERNEL_CMA_RANGES_MAX 0#endif
int __init parse_crashkernel(char *cmdline, unsigned long long system_ram, unsigned long long *crash_size, unsigned long long *crash_base, unsigned long long *low_size, unsigned long long *cma_size, bool *high);
void __init reserve_crashkernel_cma(unsigned long long cma_size);
#ifdef CONFIG_ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION#ifndef arch_add_crash_res_to_iomemstatic inline bool arch_add_crash_res_to_iomem(void){ return true;}#endif#ifndef DEFAULT_CRASH_KERNEL_LOW_SIZE#define DEFAULT_CRASH_KERNEL_LOW_SIZE (128UL << 20)#endif#ifndef CRASH_ALIGN#define CRASH_ALIGN SZ_2M#endif#ifndef CRASH_ADDR_LOW_MAX#define CRASH_ADDR_LOW_MAX SZ_4G#endif#ifndef CRASH_ADDR_HIGH_MAX#define CRASH_ADDR_HIGH_MAX memblock_end_of_DRAM()#endif
void __init reserve_crashkernel_generic(unsigned long long crash_size, unsigned long long crash_base, unsigned long long crash_low_size, bool high);#elsestatic inline void __init reserve_crashkernel_generic( unsigned long long crash_size, unsigned long long crash_base, unsigned long long crash_low_size, bool high){}#endif#endif /* LINUX_CRASH_RESERVE_H */