diff options
author | Kristian Høgsberg <krh@bitplanet.net> | 2009-11-17 09:46:56 -0500 |
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committer | Kristian Høgsberg <krh@bitplanet.net> | 2009-11-17 10:54:11 -0500 |
commit | 9dd3613073aa2491cef440725fdfa0cf1e8f1a42 (patch) | |
tree | 956c84be2fae4b4e6de2840a94d30dffa6573066 /bsd-core/drm_atomic.h | |
parent | a66cf9ce68bdf9bd887f91a38ced4b59c129b3c7 (diff) |
Drop shared-core, bsd-core, linux-core and scripts subdirs
Diffstat (limited to 'bsd-core/drm_atomic.h')
-rw-r--r-- | bsd-core/drm_atomic.h | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/bsd-core/drm_atomic.h b/bsd-core/drm_atomic.h deleted file mode 100644 index 76de7a2f..00000000 --- a/bsd-core/drm_atomic.h +++ /dev/null @@ -1,88 +0,0 @@ -/** - * \file drm_atomic.h - * Atomic operations used in the DRM which may or may not be provided by the OS. - * - * \author Eric Anholt <anholt@FreeBSD.org> - */ - -/*- - * Copyright 2004 Eric Anholt - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -/* Many of these implementations are rather fake, but good enough. */ - -typedef u_int32_t atomic_t; - -#define atomic_set(p, v) (*(p) = (v)) -#define atomic_read(p) (*(p)) -#define atomic_inc(p) atomic_add_int(p, 1) -#define atomic_dec(p) atomic_subtract_int(p, 1) -#define atomic_add(n, p) atomic_add_int(p, n) -#define atomic_sub(n, p) atomic_subtract_int(p, n) - -static __inline atomic_t -test_and_set_bit(int b, volatile void *p) -{ - int s = splhigh(); - unsigned int m = 1<<b; - unsigned int r = *(volatile int *)p & m; - *(volatile int *)p |= m; - splx(s); - return r; -} - -static __inline void -clear_bit(int b, volatile void *p) -{ - atomic_clear_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f)); -} - -static __inline void -set_bit(int b, volatile void *p) -{ - atomic_set_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f)); -} - -static __inline int -test_bit(int b, volatile void *p) -{ - return ((volatile int *)p)[b >> 5] & (1 << (b & 0x1f)); -} - -static __inline int -find_first_zero_bit(volatile void *p, int max) -{ - int b; - volatile int *ptr = (volatile int *)p; - - for (b = 0; b < max; b += 32) { - if (ptr[b >> 5] != ~0) { - for (;;) { - if ((ptr[b >> 5] & (1 << (b & 0x1f))) == 0) - return b; - b++; - } - } - } - return max; -} |