diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-10 17:39:40 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-10 17:39:40 -0800 |
| commit | 06792c4dde2ad143928cc95c1ba218c6269c494b (patch) | |
| tree | 92bdd4631612c9e3d8e5f6f06839f75c5473300a /arch/c6x/lib/llshru.S | |
| parent | 4690dfa8cd66c37fbe99bb8cd5baa86102110776 (diff) | |
| parent | 166c0eaedfc3157dc1394c27e827add19f05fb27 (diff) | |
Merge tag 'for-linux-3.3-merge-window' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming
* tag 'for-linux-3.3-merge-window' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: (29 commits)
C6X: replace tick_nohz_stop/restart_sched_tick calls
C6X: add register_cpu call
C6X: deal with memblock API changes
C6X: fix timer64 initialization
C6X: fix layout of EMIFA registers
C6X: MAINTAINERS
C6X: DSCR - Device State Configuration Registers
C6X: EMIF - External Memory Interface
C6X: general SoC support
C6X: library code
C6X: headers
C6X: ptrace support
C6X: loadable module support
C6X: cache control
C6X: clocks
C6X: build infrastructure
C6X: syscalls
C6X: interrupt handling
C6X: time management
C6X: signal management
...
Diffstat (limited to 'arch/c6x/lib/llshru.S')
| -rw-r--r-- | arch/c6x/lib/llshru.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/c6x/lib/llshru.S b/arch/c6x/lib/llshru.S new file mode 100644 index 00000000000..596ae3ff5c0 --- /dev/null +++ b/arch/c6x/lib/llshru.S @@ -0,0 +1,38 @@ +;; Copyright (C) 2010 Texas Instruments Incorporated +;; Contributed by Mark Salter <msalter@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. +;; +;; 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +;; uint64_t __c6xabi_llshru(uint64_t val, uint shift) + +#include <linux/linkage.h> + + .text +ENTRY(__c6xabi_llshru) + mv .l1x B4,A1 + [!A1] b .s2 B3 ; return if zero shift count + mvk .s1 32,A0 + sub .d1 A0,A1,A0 + cmplt .l1 0,A0,A2 + [A2] shl .s1 A5,A0,A0 + nop + [!A2] neg .l1 A0,A4 +|| [A2] shru .s1 A4,A1,A4 + [!A2] shru .s1 A5,A4,A4 +|| [A2] or .d1 A4,A0,A4 +|| [!A2] mvk .l1 0,A5 + [A2] shru .s1 A5,A1,A5 + bnop .s2 B3,5 +ENDPROC(__c6xabi_llshru) |