[v4][PATCH 7/8] book3e/kexec/kdump: redefine VIRT_PHYS_OFFSET

From: Tiejun Chen
Date: Sun Aug 25 2013 - 23:01:16 EST


Book3e is always aligned 1GB to create TLB so we should
use (KERNELBASE - MEMORY_START) as VIRT_PHYS_OFFSET to
get __pa/__va properly while boot kdump.

Signed-off-by: Tiejun Chen <tiejun.chen@xxxxxxxxxxxxx>
---
arch/powerpc/include/asm/page.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index 988c812..5b00081 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -112,6 +112,8 @@ extern long long virt_phys_offset;
/* See Description below for VIRT_PHYS_OFFSET */
#ifdef CONFIG_RELOCATABLE_PPC32
#define VIRT_PHYS_OFFSET virt_phys_offset
+#elif defined(CONFIG_PPC_BOOK3E_64)
+#define VIRT_PHYS_OFFSET (KERNELBASE - MEMORY_START)
#else
#define VIRT_PHYS_OFFSET (KERNELBASE - PHYSICAL_START)
#endif
--
1.7.9.5

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