Merge branch 'linus' into sched/clock

1 files changed, 35 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/kdump.h b/arch/powerpc/include/asm/kdump.h
new file mode 100644
index 00000000000..f6c93c71689
--- /dev/null
+++ b/arch/powerpc/include/asm/kdump.h
@@ -0,0 +1,35 @@
+#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.
+ * Reserve to the end of the FWNMI area, see head_64.S */
+#define KDUMP_RESERVE_LIMIT	0x10000 /* 64K */
+
+#ifdef CONFIG_CRASH_DUMP
+
+#define KDUMP_TRAMPOLINE_START	0x0100
+#define KDUMP_TRAMPOLINE_END	0x3000
+
+#define KDUMP_MIN_TCE_ENTRIES	2048
+
+#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 */