[POWERPC] Clean up some linker and symbol usage

* PAGE_OFFSET is not always the start of code, use _stext instead.
* grab PAGE_SIZE and KERNELBASE from asm/page.h like ppc64 does.  Makes the
  code a bit more common and provide a single place to manipulate the
  defines for things like kdump.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

3 files changed, 3 insertions, 5 deletions

diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index eac936eb3190..d813c394f0ff 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -289,7 +289,7 @@ void __init setup_arch(char **cmdline_p)
         if (ppc_md.panic)
                 setup_panic();
 
-        init_mm.start_code = PAGE_OFFSET;
+        init_mm.start_code = (unsigned long)_stext;
         init_mm.end_code = (unsigned long) _etext;
         init_mm.end_data = (unsigned long) _edata;
         init_mm.brk = klimit;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 2c2d8315193c..0205d408d2ed 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -510,7 +510,7 @@ void __init setup_arch(char **cmdline_p)
         if (ppc_md.panic)
                 setup_panic();
 
-        init_mm.start_code = PAGE_OFFSET;
+        init_mm.start_code = (unsigned long)_stext;
         init_mm.end_code = (unsigned long) _etext;
         init_mm.end_data = (unsigned long) _edata;
         init_mm.brk = klimit;
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 0afb9e31d2a0..b5a76bcd95a6 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -1,11 +1,9 @@
 #ifdef CONFIG_PPC64
-#include <asm/page.h>
 #define PROVIDE32(x)    PROVIDE(__unused__##x)
 #else
-#define PAGE_SIZE       4096
-#define KERNELBASE      CONFIG_KERNEL_START
 #define PROVIDE32(x)    PROVIDE(x)
 #endif
+#include <asm/page.h>
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/cache.h>