pvr/servicesint.h

   1 /**********************************************************************
   2  *
   3  * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful but, except
  10  * as otherwise stated in writing, without any warranty; without even the
  11  * implied warranty of merchantability or fitness for a particular purpose.
  12  * See the GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * Imagination Technologies Ltd. <gpl-support@imgtec.com>
  23  * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
  24  *
  25  ******************************************************************************/
  26
  27 #if !defined(__SERVICESINT_H__)
  28 #define __SERVICESINT_H__
  29
  30
  31 #include "services.h"
  32 #include "sysinfo.h"
  33
  34 #define HWREC_DEFAULT_TIMEOUT           500
  35
  36 #define DRIVERNAME_MAXLENGTH            100
  37
  38 struct PVRSRV_KERNEL_MEM_INFO {
  39
  40         void *pvLinAddrKM;
  41         struct IMG_DEV_VIRTADDR sDevVAddr;
  42         u32 ui32Flags;
  43         u32 ui32AllocSize;
  44         struct PVRSRV_MEMBLK sMemBlk;
  45
  46         void *pvSysBackupBuffer;
  47
  48         u32 ui32RefCount;
  49
  50         struct PVRSRV_KERNEL_SYNC_INFO *psKernelSyncInfo;
  51 };
  52
  53 struct PVRSRV_KERNEL_SYNC_INFO {
  54         struct PVRSRV_SYNC_DATA *psSyncData;
  55         struct IMG_DEV_VIRTADDR sWriteOpsCompleteDevVAddr;
  56         struct IMG_DEV_VIRTADDR sReadOpsCompleteDevVAddr;
  57         struct PVRSRV_KERNEL_MEM_INFO *psSyncDataMemInfoKM;
  58
  59         /*
  60          * This stores the physical address of the buffer that
  61          * this syncobject manages (if provided)
  62          */
  63         struct IMG_SYS_PHYADDR phys_addr;
  64         void *dev_cookie;
  65         u32 refcount;
  66 };
  67
  68 struct PVRSRV_DEVICE_SYNC_OBJECT {
  69
  70         u32 ui32ReadOpsPendingVal;
  71         struct IMG_DEV_VIRTADDR sReadOpsCompleteDevVAddr;
  72         u32 ui32WriteOpsPendingVal;
  73         struct IMG_DEV_VIRTADDR sWriteOpsCompleteDevVAddr;
  74 };
  75
  76 struct PVRSRV_SYNC_OBJECT {
  77         struct PVRSRV_KERNEL_SYNC_INFO *psKernelSyncInfoKM;
  78         u32 ui32WriteOpsPending;
  79         u32 ui32ReadOpsPending;
  80 };
  81
  82 struct PVRSRV_COMMAND {
  83         u32 ui32CmdSize;
  84         u32 ui32DevIndex;
  85         u32 CommandType;
  86         u32 ui32DstSyncCount;
  87         u32 ui32SrcSyncCount;
  88         struct PVRSRV_SYNC_OBJECT *psDstSync;
  89         struct PVRSRV_SYNC_OBJECT *psSrcSync;
  90         u32 ui32DataSize;
  91         u32 ui32ProcessID;
  92         void *pvData;
  93 };
  94
  95 struct PVRSRV_QUEUE_INFO {
  96         void *pvLinQueueKM;
  97         void *pvLinQueueUM;
  98         volatile u32 ui32ReadOffset;
  99         volatile u32 ui32WriteOffset;
 100         u32 *pui32KickerAddrKM;
 101         u32 *pui32KickerAddrUM;
 102         u32 ui32QueueSize;
 103
 104         u32 ui32ProcessID;
 105
 106         void *hMemBlock[2];
 107
 108         struct PVRSRV_QUEUE_INFO *psNextKM;
 109 };
 110
 111 struct PVRSRV_DEVICECLASS_BUFFER {
 112         enum PVRSRV_ERROR (*pfnGetBufferAddr)(void *, void *,
 113                                     struct IMG_SYS_PHYADDR **, u32 *,
 114                                     void __iomem **, void **, IMG_BOOL *);
 115         void *hDevMemContext;
 116         void *hExtDevice;
 117         void *hExtBuffer;
 118         struct PVRSRV_KERNEL_SYNC_INFO *psKernelSyncInfo;
 119 };
 120
 121 struct PVRSRV_CLIENT_DEVICECLASS_INFO {
 122         void *hDeviceKM;
 123         void *hServices;
 124 };
 125
 126 static inline u32 PVRSRVGetWriteOpsPending(
 127                 struct PVRSRV_KERNEL_SYNC_INFO *psSyncInfo, IMG_BOOL bIsReadOp)
 128 {
 129         u32 ui32WriteOpsPending;
 130
 131         if (bIsReadOp)
 132                 ui32WriteOpsPending =
 133                     psSyncInfo->psSyncData->ui32WriteOpsPending;
 134         else
 135                 ui32WriteOpsPending =
 136                     psSyncInfo->psSyncData->ui32WriteOpsPending++;
 137
 138         return ui32WriteOpsPending;
 139 }
 140
 141 static inline u32 PVRSRVGetReadOpsPending(
 142                 struct PVRSRV_KERNEL_SYNC_INFO *psSyncInfo, IMG_BOOL bIsReadOp)
 143 {
 144         u32 ui32ReadOpsPending;
 145
 146         if (bIsReadOp)
 147                 ui32ReadOpsPending =
 148                     psSyncInfo->psSyncData->ui32ReadOpsPending++;
 149         else
 150                 ui32ReadOpsPending = psSyncInfo->psSyncData->ui32ReadOpsPending;
 151
 152         return ui32ReadOpsPending;
 153 }
 154
 155 enum PVRSRV_ERROR PVRSRVQueueCommand(void *hQueueInfo,
 156                                     struct PVRSRV_COMMAND *psCommand);
 157
 158 enum PVRSRV_ERROR PVRSRVGetMMUContextPDDevPAddr(
 159                         const struct PVRSRV_CONNECTION *psConnection,
 160                         void *hDevMemContext,
 161                         struct IMG_DEV_PHYADDR *sPDDevPAddr);
 162
 163 enum PVRSRV_ERROR PVRSRVAllocSharedSysMem(
 164                         const struct PVRSRV_CONNECTION *psConnection,
 165                         u32 ui32Flags, u32 ui32Size,
 166                         struct PVRSRV_CLIENT_MEM_INFO **ppsClientMemInfo);
 167
 168 enum PVRSRV_ERROR PVRSRVFreeSharedSysMem(
 169                         const struct PVRSRV_CONNECTION *psConnection,
 170                         struct PVRSRV_CLIENT_MEM_INFO *psClientMemInfo);
 171
 172 enum PVRSRV_ERROR PVRSRVUnrefSharedSysMem(
 173                         const struct PVRSRV_CONNECTION *psConnection,
 174                         struct PVRSRV_CLIENT_MEM_INFO *psClientMemInfo);
 175
 176 enum PVRSRV_ERROR PVRSRVMapMemInfoMem(
 177                         const struct PVRSRV_CONNECTION *psConnection,
 178                         void *hKernelMemInfo,
 179                         struct PVRSRV_CLIENT_MEM_INFO **ppsClientMemInfo);
 180
 181 #endif