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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/**********************************************************************
*
* Copyright (C) Imagination Technologies Ltd. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful but, except
* as otherwise stated in writing, without any warranty; without even the
* implied warranty of merchantability or fitness for a particular purpose.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Contact Information:
* Imagination Technologies Ltd. <gpl-support@imgtec.com>
* Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
*
******************************************************************************/
#include "services_headers.h"
#include "pvr_bridge_km.h"
static PVRSRV_ERROR
FreeSharedSysMemCallBack(IMG_PVOID pvParam,
IMG_UINT32 ui32Param,
IMG_BOOL bDummy)
{
PVRSRV_KERNEL_MEM_INFO *psKernelMemInfo = pvParam;
PVR_UNREFERENCED_PARAMETER(ui32Param);
PVR_UNREFERENCED_PARAMETER(bDummy);
OSFreePages(psKernelMemInfo->ui32Flags,
psKernelMemInfo->uAllocSize,
psKernelMemInfo->pvLinAddrKM,
psKernelMemInfo->sMemBlk.hOSMemHandle);
OSFreeMem(PVRSRV_OS_PAGEABLE_HEAP,
sizeof(PVRSRV_KERNEL_MEM_INFO),
psKernelMemInfo,
IMG_NULL);
return PVRSRV_OK;
}
IMG_EXPORT PVRSRV_ERROR
PVRSRVAllocSharedSysMemoryKM(PVRSRV_PER_PROCESS_DATA *psPerProc,
IMG_UINT32 ui32Flags,
IMG_SIZE_T uSize,
PVRSRV_KERNEL_MEM_INFO **ppsKernelMemInfo)
{
PVRSRV_KERNEL_MEM_INFO *psKernelMemInfo;
if(OSAllocMem(PVRSRV_OS_PAGEABLE_HEAP,
sizeof(PVRSRV_KERNEL_MEM_INFO),
(IMG_VOID **)&psKernelMemInfo, IMG_NULL,
"Kernel Memory Info") != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"PVRSRVAllocSharedSysMemoryKM: Failed to alloc memory for meminfo"));
return PVRSRV_ERROR_OUT_OF_MEMORY;
}
OSMemSet(psKernelMemInfo, 0, sizeof(*psKernelMemInfo));
ui32Flags &= ~PVRSRV_HAP_MAPTYPE_MASK;
ui32Flags |= PVRSRV_HAP_MULTI_PROCESS;
psKernelMemInfo->ui32Flags = ui32Flags;
psKernelMemInfo->uAllocSize = uSize;
if(OSAllocPages(psKernelMemInfo->ui32Flags,
psKernelMemInfo->uAllocSize,
(IMG_UINT32)HOST_PAGESIZE(),
&psKernelMemInfo->pvLinAddrKM,
&psKernelMemInfo->sMemBlk.hOSMemHandle)
!= PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR, "PVRSRVAllocSharedSysMemoryKM: Failed to alloc memory for block"));
OSFreeMem(PVRSRV_OS_PAGEABLE_HEAP,
sizeof(PVRSRV_KERNEL_MEM_INFO),
psKernelMemInfo,
0);
return PVRSRV_ERROR_OUT_OF_MEMORY;
}
psKernelMemInfo->sMemBlk.hResItem =
ResManRegisterRes(psPerProc->hResManContext,
RESMAN_TYPE_SHARED_MEM_INFO,
psKernelMemInfo,
0,
&FreeSharedSysMemCallBack);
*ppsKernelMemInfo = psKernelMemInfo;
return PVRSRV_OK;
}
IMG_EXPORT PVRSRV_ERROR
PVRSRVFreeSharedSysMemoryKM(PVRSRV_KERNEL_MEM_INFO *psKernelMemInfo)
{
PVRSRV_ERROR eError;
if(psKernelMemInfo->sMemBlk.hResItem)
{
eError = ResManFreeResByPtr(psKernelMemInfo->sMemBlk.hResItem, CLEANUP_WITH_POLL);
}
else
{
eError = FreeSharedSysMemCallBack(psKernelMemInfo, 0, CLEANUP_WITH_POLL);
}
return eError;
}
IMG_EXPORT PVRSRV_ERROR
PVRSRVDissociateMemFromResmanKM(PVRSRV_KERNEL_MEM_INFO *psKernelMemInfo)
{
PVRSRV_ERROR eError = PVRSRV_OK;
if(!psKernelMemInfo)
{
return PVRSRV_ERROR_INVALID_PARAMS;
}
if(psKernelMemInfo->sMemBlk.hResItem)
{
eError = ResManDissociateRes(psKernelMemInfo->sMemBlk.hResItem, IMG_NULL);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR,"PVRSRVDissociateMemFromResmanKM: ResManDissociateRes failed"));
PVR_DBG_BREAK;
return eError;
}
psKernelMemInfo->sMemBlk.hResItem = IMG_NULL;
}
return eError;
}
|
