Patchwork powerpc: Add alignment handler for new lfiwzx instruction

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Submitter Michael Neuling
Date Feb. 20, 2009, 4:51 a.m.
Message ID <29888.1235105497@neuling.org>
Download mbox | patch
Permalink /patch/23472/
State Accepted
Commit 545bba18247067bb63c94e042bed90599d08151b
Delegated to: Benjamin Herrenschmidt
Headers show

Comments

Michael Neuling - Feb. 20, 2009, 4:51 a.m.
lfiwzx is a new floating point load instruction in 2.06 that needs an
alignment handler for Linux.  

Turns out to be the worlds easiest handler to add.

Signed-off-by: Michael Neuling <mikey@neuling.org>
---
Benh: this is for 2.6.30, but would be nice to be back in 2.6.27/28/29
too.

 arch/powerpc/kernel/align.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

Index: linux-2.6-ozlabs/arch/powerpc/kernel/align.c
===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/kernel/align.c
+++ linux-2.6-ozlabs/arch/powerpc/kernel/align.c
@@ -187,7 +187,7 @@  static struct aligninfo aligninfo[128] =
 	{ 4, ST+F+S+U },	/* 11 1 1010: stfsux */
 	{ 8, ST+F+U },		/* 11 1 1011: stfdux */
 	INVALID,		/* 11 1 1100 */
-	INVALID,		/* 11 1 1101 */
+	{ 4, LD+F },		/* 11 1 1101: lfiwzx */
 	INVALID,		/* 11 1 1110 */
 	INVALID,		/* 11 1 1111 */
 };