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Diffstat (limited to 'drivers/gpu/pvr/services4/srvkm/env/linux/private_data.h')
-rw-r--r--drivers/gpu/pvr/services4/srvkm/env/linux/private_data.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/drivers/gpu/pvr/services4/srvkm/env/linux/private_data.h b/drivers/gpu/pvr/services4/srvkm/env/linux/private_data.h
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1/*************************************************************************/ /*!
2@Title Linux private data structure
3@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
4@License Dual MIT/GPLv2
5
6The contents of this file are subject to the MIT license as set out below.
7
8Permission is hereby granted, free of charge, to any person obtaining a copy
9of this software and associated documentation files (the "Software"), to deal
10in the Software without restriction, including without limitation the rights
11to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12copies of the Software, and to permit persons to whom the Software is
13furnished to do so, subject to the following conditions:
14
15The above copyright notice and this permission notice shall be included in
16all copies or substantial portions of the Software.
17
18Alternatively, the contents of this file may be used under the terms of
19the GNU General Public License Version 2 ("GPL") in which case the provisions
20of GPL are applicable instead of those above.
21
22If you wish to allow use of your version of this file only under the terms of
23GPL, and not to allow others to use your version of this file under the terms
24of the MIT license, indicate your decision by deleting the provisions above
25and replace them with the notice and other provisions required by GPL as set
26out in the file called "GPL-COPYING" included in this distribution. If you do
27not delete the provisions above, a recipient may use your version of this file
28under the terms of either the MIT license or GPL.
29
30This License is also included in this distribution in the file called
31"MIT-COPYING".
32
33EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
34PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
35BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
36PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
37COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
38IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
39CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
40*/ /**************************************************************************/
41
42#ifndef __INCLUDED_PRIVATE_DATA_H_
43#define __INCLUDED_PRIVATE_DATA_H_
44
45#if defined(SUPPORT_DRI_DRM) && defined(PVR_SECURE_DRM_AUTH_EXPORT)
46#include <linux/list.h>
47#include <drm/drmP.h>
48#endif
49
50/* This structure is required in the rare case that a process creates
51 * a connection to services, but before closing the file descriptor,
52 * does a fork(). This fork() will duplicate the file descriptor in the
53 * child process. If the parent process dies before the child, this can
54 * cause the PVRSRVRelease() method to be called in a different process
55 * context than the original PVRSRVOpen(). This is bad because we need
56 * to update the per-process data reference count and/or free the
57 * per-process data. So we must keep a record of which PID's per-process
58 * data to inspect during ->release().
59 */
60
61typedef struct
62{
63 /* PID that created this services connection */
64 IMG_UINT32 ui32OpenPID;
65
66 /* Global kernel MemInfo handle */
67 IMG_HANDLE hKernelMemInfo;
68
69#if defined(SUPPORT_DRI_DRM) && defined(PVR_SECURE_DRM_AUTH_EXPORT)
70 /* The private data is on a list in the per-process data structure */
71 struct list_head sDRMAuthListItem;
72
73 struct drm_file *psDRMFile;
74#endif
75
76#if defined(SUPPORT_MEMINFO_IDS)
77 /* Globally unique "stamp" for kernel MemInfo */
78 IMG_UINT64 ui64Stamp;
79#endif /* defined(SUPPORT_MEMINFO_IDS) */
80
81 /* Accounting for OSAllocMem */
82 IMG_HANDLE hBlockAlloc;
83
84#if defined(SUPPORT_DRI_DRM_EXT)
85 IMG_PVOID pPriv; /*private data for extending this struct*/
86#endif
87}
88PVRSRV_FILE_PRIVATE_DATA;
89
90#endif /* __INCLUDED_PRIVATE_DATA_H_ */
91