From 7ffcf8ec26f4b94b95b1297131d223b121d951e5 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Wed, 7 Aug 2013 02:01:46 +1000
Subject: powerpc: Fix little endian lppaca, slb_shadow and dtl_entry
The lppaca, slb_shadow and dtl_entry hypervisor structures are
big endian, so we have to byte swap them in little endian builds.
LE KVM hosts will also need to be fixed but for now add an #error
to remind us.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/mm/fault.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
(limited to 'arch/powerpc/mm/fault.c')
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 8726779e140..76d8e7cc780 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -443,8 +443,12 @@ good_area:
regs, address);
#ifdef CONFIG_PPC_SMLPAR
if (firmware_has_feature(FW_FEATURE_CMO)) {
+ u32 page_ins;
+
preempt_disable();
- get_lppaca()->page_ins += (1 << PAGE_FACTOR);
+ page_ins = be32_to_cpu(get_lppaca()->page_ins);
+ page_ins += 1 << PAGE_FACTOR;
+ get_lppaca()->page_ins = cpu_to_be32(page_ins);
preempt_enable();
}
#endif /* CONFIG_PPC_SMLPAR */
--
cgit v1.2.3-70-g09d2