0f07496144
This assembly version is measurably faster than the generic version in lib/iomap_copy.c. Signed-off-by: Bryan O'Sullivan <bos@pathscale.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
27 lines
859 B
ArmAsm
27 lines
859 B
ArmAsm
/*
|
|
* Copyright 2006 PathScale, Inc. All Rights Reserved.
|
|
*
|
|
* This file is free software; you can redistribute it and/or modify
|
|
* it under the terms of version 2 of the GNU General Public License
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
/*
|
|
* override generic version in lib/iomap_copy.c
|
|
*/
|
|
.globl __iowrite32_copy
|
|
.p2align 4
|
|
__iowrite32_copy:
|
|
movl %edx,%ecx
|
|
rep movsd
|
|
ret
|