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authorStuart Menefy <stuart.menefy@st.com>2007-11-01 23:14:09 -0400
committerPaul Mundt <lethal@linux-sh.org>2007-11-01 23:14:09 -0400
commit0e670685e4925930000a678c74eb1cbf23b415fa (patch)
tree49df41f99ede80730c4262efdebd3e802d735d2c /arch/sh
parentc81134b58c0857122cce23b29d41788e02a5024d (diff)
sh: Fix optimized __copy_user() movca.l usage.
movca.l is restricted to SH-4 and up only, though compilers that are unable to support ISA tuning (especially older versions of binutils) will happily compile in the bogus opcode on older parts. Conditionalize it to fix SH-3 regressions noted by Kristoffer. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/mm/copy_page.S4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sh/mm/copy_page.S b/arch/sh/mm/copy_page.S
index a81dbdb05596..3d8409daa4be 100644
--- a/arch/sh/mm/copy_page.S
+++ b/arch/sh/mm/copy_page.S
@@ -255,7 +255,11 @@ EX( mov.l @r5+,r8 )
255EX( mov.l @r5+,r9 ) 255EX( mov.l @r5+,r9 )
256EX( mov.l @r5+,r10 ) 256EX( mov.l @r5+,r10 )
257EX( mov.l @r5+,r11 ) 257EX( mov.l @r5+,r11 )
258#ifdef CONFIG_CPU_SH4
258EX( movca.l r0,@r4 ) 259EX( movca.l r0,@r4 )
260#else
261EX( mov.l r0,@r4 )
262#endif
259 add #-32, r6 263 add #-32, r6
260EX( mov.l r1,@(4,r4) ) 264EX( mov.l r1,@(4,r4) )
261 mov #32, r0 265 mov #32, r0