Commit 0e670685 authored Nov 02, 2007 by Stuart Menefy Committed by Paul Mundt Nov 02, 2007

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>

parent c81134b5

arch/sh/mm/copy_page.S

+4 −0

Original line number	Diff line number	Diff line
		@@ -255,7 +255,11 @@ EX( mov.l @r5+,r8 )
		EX( mov.l @r5+,r9 )
		EX( mov.l @r5+,r10 )
		EX( mov.l @r5+,r11 )
		#ifdef CONFIG_CPU_SH4
		EX( movca.l r0,@r4 )
		#else
		EX( mov.l r0,@r4 )
		#endif
		add #-32, r6
		EX( mov.l r1,@(4,r4) )
		mov #32, r0

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