[PATCH 04/20] powerpc/powernv: Don't clobber r9 in relative_toc()
Benjamin Herrenschmidt
benh at kernel.crashing.org
Tue Sep 20 13:44:51 EST 2011
With OPAL, r8 and r9 will be used to pass the OPAL base and entry
for debugging purposes (those informations are also in the
device-tree). We don't want to clobber those registers that
early.
Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---
arch/powerpc/kernel/head_64.S | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 3564c49..e708abe 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -674,9 +674,9 @@ _GLOBAL(enable_64b_mode)
_GLOBAL(relative_toc)
mflr r0
bcl 20,31,$+4
-0: mflr r9
- ld r2,(p_toc - 0b)(r9)
- add r2,r2,r9
+0: mflr r11
+ ld r2,(p_toc - 0b)(r11)
+ add r2,r2,r11
mtlr r0
blr
--
1.7.4.1
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