diff options
author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/qemu-palcode/util.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/qemu-palcode/util.c')
-rw-r--r-- | qemu/roms/qemu-palcode/util.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/qemu/roms/qemu-palcode/util.c b/qemu/roms/qemu-palcode/util.c new file mode 100644 index 000000000..1444dd6b6 --- /dev/null +++ b/qemu/roms/qemu-palcode/util.c @@ -0,0 +1,39 @@ +/* Utility functions for the QEMU PALcode. + + Copyright (C) 2011 Richard Henderson + + This file is part of QEMU PALcode. + + 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 text + of 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 see + <http://www.gnu.org/licenses/>. */ + +#include "protos.h" + + +void +ndelay(unsigned long nsec) +{ + unsigned long target, now; + + /* ??? Fix race between setting an alarm and waiting for an interrupt, + so that we can use wtint here. This isn't used much except for + during startup, so it probably doesn't matter much. */ + + now = get_wall_time(); + target = now + nsec; + + do + now = get_wall_time(); + while (now < target); +} |