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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/sh/lib/udiv_qrnnd.S | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/sh/lib/udiv_qrnnd.S')
-rw-r--r-- | kernel/arch/sh/lib/udiv_qrnnd.S | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/kernel/arch/sh/lib/udiv_qrnnd.S b/kernel/arch/sh/lib/udiv_qrnnd.S new file mode 100644 index 000000000..32b9a36de --- /dev/null +++ b/kernel/arch/sh/lib/udiv_qrnnd.S @@ -0,0 +1,81 @@ +/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, + 2004, 2005, 2006 + Free Software Foundation, Inc. + +This file 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, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file into combinations with other programs, +and to distribute those combinations without any restriction coming +from the use of this file. (The General Public License restrictions +do apply in other respects; for example, they cover modification of +the file, and distribution when not linked into a combine +executable.) + +This file 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; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +!! libgcc routines for the Renesas / SuperH SH CPUs. +!! Contributed by Steve Chamberlain. +!! sac@cygnus.com + +!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines +!! recoded in assembly by Toshiyasu Morita +!! tm@netcom.com + +/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and + ELF local label prefixes by J"orn Rennecke + amylaar@cygnus.com */ + + /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ + /* n1 < d, but n1 might be larger than d1. */ + .global __udiv_qrnnd_16 + .balign 8 +__udiv_qrnnd_16: + div0u + cmp/hi r6,r0 + bt .Lots + .rept 16 + div1 r6,r0 + .endr + extu.w r0,r1 + bt 0f + add r6,r0 +0: rotcl r1 + mulu.w r1,r5 + xtrct r4,r0 + swap.w r0,r0 + sts macl,r2 + cmp/hs r2,r0 + sub r2,r0 + bt 0f + addc r5,r0 + add #-1,r1 + bt 0f +1: add #-1,r1 + rts + add r5,r0 + .balign 8 +.Lots: + sub r5,r0 + swap.w r4,r1 + xtrct r0,r1 + clrt + mov r1,r0 + addc r5,r0 + mov #-1,r1 + bf/s 1b + shlr16 r1 +0: rts + nop |