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-rw-r--r--include/linux/crash_core.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h
index d8050a7eab01..4dbd6565e0ff 100644
--- a/include/linux/crash_core.h
+++ b/include/linux/crash_core.h
@@ -93,6 +93,34 @@ int parse_crashkernel_high(char *cmdline, unsigned long long system_ram,
int parse_crashkernel_low(char *cmdline, unsigned long long system_ram,
unsigned long long *crash_size, unsigned long long *crash_base);
+#ifdef CONFIG_ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION
+#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(char *cmdline,
+ unsigned long long crash_size,
+ unsigned long long crash_base,
+ unsigned long long crash_low_size,
+ bool high);
+#else
+static inline void __init reserve_crashkernel_generic(char *cmdline,
+ unsigned long long crash_size,
+ unsigned long long crash_base,
+ unsigned long long crash_low_size,
+ bool high)
+{}
+#endif
+
/* Alignment required for elf header segment */
#define ELF_CORE_HEADER_ALIGN 4096