drm_atomic.h revision 1450
1450N/A * Copyright (c) 2006, 2015, Oracle and/or its affiliates. All rights reserved. 1450N/A * Atomic operations used in the DRM which may or may not be provided by the OS. 1450N/A * \author Eric Anholt <anholt@FreeBSD.org> 1450N/A * Copyright 2004 Eric Anholt 1450N/A * Copyright (c) 2009, 2012, Intel Corporation. 1450N/A * Permission is hereby granted, free of charge, to any person obtaining a 1450N/A * copy of this software and associated documentation files (the "Software"), 1450N/A * to deal in the Software without restriction, including without limitation 1450N/A * the rights to use, copy, modify, merge, publish, distribute, sublicense, 1450N/A * and/or sell copies of the Software, and to permit persons to whom the 1450N/A * Software is furnished to do so, subject to the following conditions: 1450N/A * The above copyright notice and this permission notice (including the next 1450N/A * paragraph) shall be included in all copies or substantial portions of the 1450N/A * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1450N/A * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1450N/A * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 1450N/A * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 1450N/A * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 1450N/A * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 1450N/A * OTHER DEALINGS IN THE SOFTWARE. 1450N/A/* Many of these implementations are rather fake, but good enough. */ 1450N/A (((
volatile uint_t *)(
void *)p)[b >>
5] & (
1 << (b &
0x1f)))
1450N/A * Note: this routine doesn't return old value. It return 1450N/A * 0 when succeeds, or -1 when fails. 1450N/A#
endif /* _SYS_DRM_ATOMIC_H_ */