xref: /OK3568_Linux_fs/external/xserver/hw/xfree86/os-support/shared/agp_noop.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1 /*
2  * Copyright (c) 2000-2003 by The XFree86 Project, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Except as contained in this notice, the name of the copyright holder(s)
23  * and author(s) shall not be used in advertising or otherwise to promote
24  * the sale, use or other dealings in this Software without prior written
25  * authorization from the copyright holder(s) and author(s).
26  */
27 
28 /*
29  * Abstraction of the AGP GART interface.  Stubs for platforms without
30  * AGP GART support.
31  */
32 
33 #ifdef HAVE_XORG_CONFIG_H
34 #include <xorg-config.h>
35 #endif
36 
37 #include <X11/X.h>
38 #include "xf86.h"
39 #include "xf86Priv.h"
40 #include "xf86_OSlib.h"
41 #include "xf86OSpriv.h"
42 
43 Bool
xf86GARTCloseScreen(int screenNum)44 xf86GARTCloseScreen(int screenNum)
45 {
46     return FALSE;
47 }
48 
49 Bool
xf86AgpGARTSupported(void)50 xf86AgpGARTSupported(void)
51 {
52     return FALSE;
53 }
54 
55 AgpInfoPtr
xf86GetAGPInfo(int screenNum)56 xf86GetAGPInfo(int screenNum)
57 {
58     return NULL;
59 }
60 
61 Bool
xf86AcquireGART(int screenNum)62 xf86AcquireGART(int screenNum)
63 {
64     return FALSE;
65 }
66 
67 Bool
xf86ReleaseGART(int screenNum)68 xf86ReleaseGART(int screenNum)
69 {
70     return FALSE;
71 }
72 
73 int
xf86AllocateGARTMemory(int screenNum,unsigned long size,int type,unsigned long * physical)74 xf86AllocateGARTMemory(int screenNum, unsigned long size, int type,
75                        unsigned long *physical)
76 {
77     return -1;
78 }
79 
80 Bool
xf86DeallocateGARTMemory(int screenNum,int key)81 xf86DeallocateGARTMemory(int screenNum, int key)
82 {
83     return FALSE;
84 }
85 
86 Bool
xf86BindGARTMemory(int screenNum,int key,unsigned long offset)87 xf86BindGARTMemory(int screenNum, int key, unsigned long offset)
88 {
89     return FALSE;
90 }
91 
92 Bool
xf86UnbindGARTMemory(int screenNum,int key)93 xf86UnbindGARTMemory(int screenNum, int key)
94 {
95     return FALSE;
96 }
97 
98 Bool
xf86EnableAGP(int screenNum,CARD32 mode)99 xf86EnableAGP(int screenNum, CARD32 mode)
100 {
101     return FALSE;
102 }
103