From: Sonny Rao <sonnyrao@us.ibm.com>
Date: Thu, 19 Aug 2010 18:08:09 +0000 (+0000)
Subject: powerpc: Export memstart_addr and kernstart_addr on ppc64
X-Git-Tag: v2.6.36-rc3~37^2~18
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=79c3095fb39964d0d44368cbbb4eff5b52c43d2c;p=~emulex%2Finfiniband.git

powerpc: Export memstart_addr and kernstart_addr on ppc64

Some modules (like eHCA) want to map all of kernel memory, for this to
work with a relocated kernel, we need to export kernstart_addr so
modules can use PHYSICAL_START and memstart_addr so they could use
MEMORY_START.  Note that the 32bit code already exports these symbols.

Signed-off-By: Sonny Rao <sonnyrao@us.ibm.com>

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 71f1415e247..ace85fa74b2 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -79,7 +79,9 @@
 #endif /* CONFIG_PPC_STD_MMU_64 */
 
 phys_addr_t memstart_addr = ~0;
+EXPORT_SYMBOL_GPL(memstart_addr);
 phys_addr_t kernstart_addr;
+EXPORT_SYMBOL_GPL(kernstart_addr);
 
 void free_initmem(void)
 {