mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
402344012e
Export a number of features required to build all the modules. It also implements the following simple features: (*) csum_partial_copy_from_user() for MMU as well as no-MMU. (*) __ucmpdi2(). so that they can be exported too. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
45 lines
1.2 KiB
ArmAsm
45 lines
1.2 KiB
ArmAsm
/* __ucmpdi2.S: 64-bit unsigned compare
|
|
*
|
|
* Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
|
|
.text
|
|
.p2align 4
|
|
|
|
###############################################################################
|
|
#
|
|
# int __ucmpdi2(unsigned long long a [GR8:GR9],
|
|
# unsigned long long b [GR10:GR11])
|
|
#
|
|
# - returns 0, 1, or 2 as a <, =, > b respectively.
|
|
#
|
|
###############################################################################
|
|
.globl __ucmpdi2
|
|
.type __ucmpdi2,@function
|
|
__ucmpdi2:
|
|
or.p gr8,gr0,gr4
|
|
subcc gr8,gr10,gr0,icc0
|
|
setlos.p #0,gr8
|
|
bclr icc0,#2 ; a.msw < b.msw
|
|
|
|
setlos.p #2,gr8
|
|
bhilr icc0,#0 ; a.msw > b.msw
|
|
|
|
subcc.p gr9,gr11,gr0,icc1
|
|
setlos #0,gr8
|
|
setlos.p #2,gr9
|
|
setlos #1,gr7
|
|
cknc icc1,cc6
|
|
cor.p gr9,gr0,gr8, cc6,#1
|
|
cckls icc1,cc4, cc6,#1
|
|
andcr cc6,cc4,cc4
|
|
cor gr7,gr0,gr8, cc4,#1
|
|
bralr
|
|
.size __ucmpdi2, .-__ucmpdi2
|