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| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/metag/lib/lshrdi3.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/metag/lib/lshrdi3.S')
| -rw-r--r-- | kernel/arch/metag/lib/lshrdi3.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/kernel/arch/metag/lib/lshrdi3.S b/kernel/arch/metag/lib/lshrdi3.S new file mode 100644 index 000000000..47f720283 --- /dev/null +++ b/kernel/arch/metag/lib/lshrdi3.S @@ -0,0 +1,33 @@ +! Copyright (C) 2012 by Imagination Technologies Ltd. +! +! 64-bit logical shift right routine. +! + + .text + .global ___lshrdi3 + .type ___lshrdi3,function + +___lshrdi3: + MOV D0Re0,D0Ar2 + MOV D1Re0,D1Ar1 + CMP D1Ar3,#0 ! COUNT == 0 + MOVEQ PC,D1RtP ! Yes, return + + MOV D0Ar4,D1Ar3 + SUBS D1Ar3,D1Ar3,#32 ! N = COUNT - 32 + BGE $L30 + +!! Shift < 32 + NEG D1Ar3,D1Ar3 ! N = - N + LSR D0Re0,D0Re0,D0Ar4 ! LO = LO >> COUNT + LSL D0Ar6,D1Re0,D1Ar3 ! TMP= HI << -(COUNT - 32) + OR D0Re0,D0Re0,D0Ar6 ! LO = LO | TMP + SWAP D1Ar3,D0Ar4 + LSR D1Re0,D1Re0,D1Ar3 ! HI = HI >> COUNT + MOV PC,D1RtP +$L30: +!! Shift >= 32 + LSR D0Re0,D1Re0,D1Ar3 ! LO = HI >> N + MOV D1Re0,#0 ! HI = 0 + MOV PC,D1RtP + .size ___lshrdi3,.-___lshrdi3 |