leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

sh: Fix optimized __copy_user() movca.l usage.

Browse Source 
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>
This commit is contained in:
Stuart Menefy 2007-11-02 12:14:09 +09:00 committed by Paul Mundt
parent c81134b58c
commit 0e670685e4
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/sh/mm/copy_page.S
View File

@ -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