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authorPaul Mundt <lethal@linux-sh.org>2010-07-02 13:05:10 +0900
committerPaul Mundt <lethal@linux-sh.org>2010-07-02 13:05:10 +0900
commit12462d77ec78be9fb033580b7b64ddf9d0fee44b (patch)
treea21157428d46259ed2c8a727ac12a2e658d8181a /arch/powerpc/include/asm/kdump.h
parent598ee698d9db7beb06e12f4ea9d9a5fbc03a3a77 (diff)
parent97e0214044d9f279a3d6286c9f859696ef0b7ebe (diff)
Merge branches 'sh/highmem' and 'sh/stable-updates'
Diffstat (limited to 'arch/powerpc/include/asm/kdump.h')
-rw-r--r--arch/powerpc/include/asm/kdump.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/kdump.h b/arch/powerpc/include/asm/kdump.h
index 5ebfe5d3c61..6857af58b02 100644
--- a/arch/powerpc/include/asm/kdump.h
+++ b/arch/powerpc/include/asm/kdump.h
@@ -3,8 +3,17 @@
#include <asm/page.h>
-/* Kdump kernel runs at 32 MB, change at your peril. */
+/*
+ * If CONFIG_RELOCATABLE is enabled we can place the kdump kernel anywhere.
+ * To keep enough space in the RMO for the first stage kernel on 64bit, we
+ * place it at 64MB. If CONFIG_RELOCATABLE is not enabled we must place
+ * the second stage at 32MB.
+ */
+#if defined(CONFIG_RELOCATABLE) && defined(CONFIG_PPC64)
+#define KDUMP_KERNELBASE 0x4000000
+#else
#define KDUMP_KERNELBASE 0x2000000
+#endif
/* How many bytes to reserve at zero for kdump. The reserve limit should
* be greater or equal to the trampoline's end address.