49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef LINUX_CRASH_RESERVE_H
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#define LINUX_CRASH_RESERVE_H
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#include <linux/linkage.h>
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#include <linux/elfcore.h>
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#include <linux/elf.h>
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#ifdef CONFIG_ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION
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#include <asm/crash_reserve.h>
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#endif
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/* Location of a reserved region to hold the crash kernel.
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*/
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extern struct resource crashk_res;
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extern struct resource crashk_low_res;
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int __init parse_crashkernel(char *cmdline, unsigned long long system_ram,
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unsigned long long *crash_size, unsigned long long *crash_base,
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unsigned long long *low_size, bool *high);
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#ifdef CONFIG_ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION
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#ifndef DEFAULT_CRASH_KERNEL_LOW_SIZE
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#define DEFAULT_CRASH_KERNEL_LOW_SIZE (128UL << 20)
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#endif
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#ifndef CRASH_ALIGN
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#define CRASH_ALIGN SZ_2M
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#endif
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#ifndef CRASH_ADDR_LOW_MAX
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#define CRASH_ADDR_LOW_MAX SZ_4G
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#endif
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#ifndef CRASH_ADDR_HIGH_MAX
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#define CRASH_ADDR_HIGH_MAX memblock_end_of_DRAM()
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#endif
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void __init reserve_crashkernel_generic(char *cmdline,
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unsigned long long crash_size,
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unsigned long long crash_base,
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unsigned long long crash_low_size,
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bool high);
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#else
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static inline void __init reserve_crashkernel_generic(char *cmdline,
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unsigned long long crash_size,
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unsigned long long crash_base,
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unsigned long long crash_low_size,
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bool high)
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{}
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#endif
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#endif /* LINUX_CRASH_RESERVE_H */
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