summaryrefslogtreecommitdiff
path: root/shared-core/via_mm.h
blob: d57efda57c765dfffe65c5caebf736494fb559b1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/*
 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
 * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license,
 * 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 NON-INFRINGEMENT. IN NO EVENT SHALL
 * VIA, S3 GRAPHICS, 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.
 */
#ifndef _via_drm_mm_h_
#define _via_drm_mm_h_

typedef struct {
	unsigned int context;
	unsigned int size;
	unsigned long offset;
	unsigned long free;
} drm_via_mm_t;

typedef struct {
	unsigned int size;
	unsigned long handle;
	void *virtual;
} drm_via_dma_t;

#endif
* * Authors: * Chris Wilson <chris@chris-wilson.co.uk> * */ /** * @file xf86atomics.h * * Private definitions for atomic operations */ #ifndef LIBDRM_ATOMICS_H #define LIBDRM_ATOMICS_H #ifdef HAVE_CONFIG_H #include "config.h" #endif #if HAVE_LIBDRM_ATOMIC_PRIMITIVES #define HAS_ATOMIC_OPS 1 typedef struct { int atomic; } atomic_t; # define atomic_read(x) ((x)->atomic) # define atomic_set(x, val) ((x)->atomic = (val)) # define atomic_inc(x) ((void) __sync_fetch_and_add (&(x)->atomic, 1)) # define atomic_dec_and_test(x) (__sync_fetch_and_add (&(x)->atomic, -1) == 1) # define atomic_add(x, v) ((void) __sync_add_and_fetch(&(x)->atomic, (v))) # define atomic_dec(x, v) ((void) __sync_sub_and_fetch(&(x)->atomic, (v))) # define atomic_cmpxchg(x, oldv, newv) __sync_val_compare_and_swap (&(x)->atomic, oldv, newv) #endif #if HAVE_LIB_ATOMIC_OPS #include <atomic_ops.h> #define HAS_ATOMIC_OPS 1 typedef struct { AO_t atomic; } atomic_t; # define atomic_read(x) AO_load_full(&(x)->atomic) # define atomic_set(x, val) AO_store_full(&(x)->atomic, (val)) # define atomic_inc(x) ((void) AO_fetch_and_add1_full(&(x)->atomic)) # define atomic_add(x, v) ((void) AO_fetch_and_add_full(&(x)->atomic, (v))) # define atomic_dec(x, v) ((void) AO_fetch_and_add_full(&(x)->atomic, -(v))) # define atomic_dec_and_test(x) (AO_fetch_and_sub1_full(&(x)->atomic) == 1) # define atomic_cmpxchg(x, oldv, newv) AO_compare_and_swap_full(&(x)->atomic, oldv, newv) #endif #if defined(__sun) && !defined(HAS_ATOMIC_OPS) /* Solaris & OpenSolaris */ #include <sys/atomic.h> #define HAS_ATOMIC_OPS 1 typedef struct { uint_t atomic; } atomic_t; # define atomic_read(x) (int) ((x)->atomic) # define atomic_set(x, val) ((x)->atomic = (uint_t)(val)) # define atomic_inc(x) (atomic_inc_uint (&(x)->atomic)) # define atomic_dec_and_test(x) (atomic_dec_uint_nv(&(x)->atomic) == 1) # define atomic_add(x, v) (atomic_add_int(&(x)->atomic, (v))) # define atomic_dec(x, v) (atomic_add_int(&(x)->atomic, -(v))) # define atomic_cmpxchg(x, oldv, newv) atomic_cas_uint (&(x)->atomic, oldv, newv) #endif #if ! HAS_ATOMIC_OPS #error libdrm requires atomic operations, please define them for your CPU/compiler. #endif #endif