[PATCH] powerpc: Kdump header cleanup

We need to know the base address of the kdump kernel even when we're not a
kdump kernel, so add a #define for it. Move the logic that sets the kdump
kernelbase into kdump.h instead of page.h.

Rename kdump_setup() to setup_kdump_trampoline() to make it clearer what it's
doing, and add an empty definition for the !CRASH_DUMP case to avoid a

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 1 insertions, 7 deletions

diff --git a/include/asm-powerpc/page.h b/include/asm-powerpc/page.h
index 2fbecebe1c92..ae610b620487 100644
--- a/include/asm-powerpc/page.h
+++ b/include/asm-powerpc/page.h
@@ -13,6 +13,7 @@
 #ifdef __KERNEL__
 #include <linux/config.h>
 #include <asm/asm-compat.h>
+#include <asm/kdump.h>
 
 /*
  * On PPC32 page size is 4K. For PPC64 we support either 4K or 64K software
@@ -52,13 +53,6 @@
  * If you want to test if something's a kernel address, use is_kernel_addr().
  */
 
-#ifdef CONFIG_CRASH_DUMP
-/* Kdump kernel runs at 32 MB, change at your peril. */
-#define PHYSICAL_START  0x2000000
-#else
-#define PHYSICAL_START  0x0
-#endif
-
 #define PAGE_OFFSET     ASM_CONST(CONFIG_KERNEL_START)
 #define KERNELBASE      (PAGE_OFFSET + PHYSICAL_START)