1 files changed, 27 insertions, 2 deletions

diff --git a/include/asm-powerpc/kdump.h b/include/asm-powerpc/kdump.h
index a87aed00d61f..5a5c3b5ab1e0 100644
--- a/include/asm-powerpc/kdump.h
+++ b/include/asm-powerpc/kdump.h
@@ -1,13 +1,38 @@
 #ifndef _PPC64_KDUMP_H
 #define _PPC64_KDUMP_H
 
+/* Kdump kernel runs at 32 MB, change at your peril. */
+#define KDUMP_KERNELBASE        0x2000000
+
 /* How many bytes to reserve at zero for kdump. The reserve limit should
- * be greater or equal to the trampoline's end address. */
+ * be greater or equal to the trampoline's end address.
+ * Reserve to the end of the FWNMI area, see head_64.S */
 #define KDUMP_RESERVE_LIMIT     0x8000
 
+#ifdef CONFIG_CRASH_DUMP
+
+#define PHYSICAL_START  KDUMP_KERNELBASE
 #define KDUMP_TRAMPOLINE_START  0x0100
 #define KDUMP_TRAMPOLINE_END    0x3000
 
-extern void kdump_setup(void);
+#else /* !CONFIG_CRASH_DUMP */
+
+#define PHYSICAL_START  0x0
+
+#endif /* CONFIG_CRASH_DUMP */
+
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_CRASH_DUMP
+
+extern void reserve_kdump_trampoline(void);
+extern void setup_kdump_trampoline(void);
+
+#else /* !CONFIG_CRASH_DUMP */
+
+static inline void reserve_kdump_trampoline(void) { ; }
+static inline void setup_kdump_trampoline(void) { ; }
+
+#endif /* CONFIG_CRASH_DUMP */
+#endif /* __ASSEMBLY__ */
 
 #endif /* __PPC64_KDUMP_H */