diff options
Diffstat (limited to 'pvr-source/services4/srvkm/common/mem.c')
| -rw-r--r-- | pvr-source/services4/srvkm/common/mem.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/pvr-source/services4/srvkm/common/mem.c b/pvr-source/services4/srvkm/common/mem.c new file mode 100644 index 0000000..cccdd24 --- /dev/null +++ b/pvr-source/services4/srvkm/common/mem.c @@ -0,0 +1,175 @@ +/*************************************************************************/ /*! +@Title System memory functions +@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved +@Description System memory allocation APIs +@License Dual MIT/GPLv2 + +The contents of this file are subject to the MIT license as set out below. + +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, sublicense, 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 shall be included in +all copies or substantial portions of the Software. + +Alternatively, the contents of this file may be used under the terms of +the GNU General Public License Version 2 ("GPL") in which case the provisions +of GPL are applicable instead of those above. + +If you wish to allow use of your version of this file only under the terms of +GPL, and not to allow others to use your version of this file under the terms +of the MIT license, indicate your decision by deleting the provisions above +and replace them with the notice and other provisions required by GPL as set +out in the file called "GPL-COPYING" included in this distribution. If you do +not delete the provisions above, a recipient may use your version of this file +under the terms of either the MIT license or GPL. + +This License is also included in this distribution in the file called +"MIT-COPYING". + +EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) 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 NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS 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. +*/ /**************************************************************************/ + +#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); + /*not nulling pointer, copy on stack*/ + + 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(), + IMG_NULL, + 0, + IMG_NULL, + &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; + } + + /* register with the resman */ + 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; +} + +/****************************************************************************** + End of file (mem.c) +******************************************************************************/ |