static IMG_VOID _SyncPrimitiveBlockUnref(SYNC_PRIMITIVE_BLOCK *psSyncBlk) { IMG_UINT32 ui32RefCount; OSLockAcquire(psSyncBlk->hLock); ui32RefCount = --psSyncBlk->ui32RefCount; OSLockRelease(psSyncBlk->hLock); if (ui32RefCount == 0) { PVRSRV_DEVICE_NODE *psDevNode = psSyncBlk->psDevNode; SYNC_REFCOUNT_PRINT("%s: Sync block %p, refcount = %d (remove)", __FUNCTION__, psSyncBlk, ui32RefCount); _SyncConnectionRemoveBlock(psSyncBlk); OSLockDestroy(psSyncBlk->hLock); DevmemUnexport(psSyncBlk->psMemDesc, &psSyncBlk->sExportCookie); DevmemReleaseCpuVirtAddr(psSyncBlk->psMemDesc); psDevNode->pfnFreeUFOBlock(psDevNode, psSyncBlk->psMemDesc); OSFreeMem(psSyncBlk); } else { SYNC_REFCOUNT_PRINT("%s: Sync block %p, refcount = %d", __FUNCTION__, psSyncBlk, ui32RefCount); } }
IMG_VOID TLStreamClose(IMG_HANDLE hStream) { PTL_STREAM psTmp; PVR_DPF_ENTERED; if ( IMG_NULL == hStream ) { PVR_DPF((PVR_DBG_WARNING, "TLStreamClose failed as NULL stream handler passed, nothing done.\n")); PVR_DPF_RETURN; } psTmp = (PTL_STREAM)hStream; /* Decrement reference counter */ //Thread Safety: Not yet implemented OSLockAcquire(psTmp->hLock); psTmp->uiRefCount--; //Thread Safety: Not yet implemented OSLockRelease(psTmp->hLock); /* The stream is still being used in other context(s) do not destroy anything */ if ( 0 != psTmp->uiRefCount ) { PVR_DPF_RETURN; } else { if ( psTmp->bWaitForEmptyOnDestroy == IMG_TRUE ) { while (psTmp->ui32Read != psTmp->ui32Write) { OSEventObjectWaitTimeout(psTmp->hProducerEvent, EVENT_OBJECT_TIMEOUT_MS); } } /* First remove it from the global structures to prevent access * while it is being free'd. Lock it? */ TLRemoveStreamAndTryFreeStreamNode(psTmp->psNode); //Thread Safety: Not yet implemented OSLockDestroy(psTmp->hLock); // In block-while-reserve streams those not be NULL if ( IMG_TRUE == psTmp->bBlock ) { OSEventObjectClose(psTmp->hProducerEvent); OSEventObjectDestroy(psTmp->hProducerEventObj); } DevmemUnexport(psTmp->psStreamMemDesc, &psTmp->sExportCookie); DevmemReleaseCpuVirtAddr(psTmp->psStreamMemDesc); DevmemFree(psTmp->psStreamMemDesc); OSFREEMEM(psTmp); PVR_DPF_RETURN; } }
PVRSRV_ERROR PVRSRVAllocSyncPrimitiveBlockKM(CONNECTION_DATA *psConnection, PVRSRV_DEVICE_NODE *psDevNode, SYNC_PRIMITIVE_BLOCK **ppsSyncBlk, IMG_UINT32 *puiSyncPrimVAddr, IMG_UINT32 *puiSyncPrimBlockSize, DEVMEM_EXPORTCOOKIE **psExportCookie) { SYNC_PRIMITIVE_BLOCK *psNewSyncBlk; PVRSRV_ERROR eError; psNewSyncBlk = OSAllocMem(sizeof(SYNC_PRIMITIVE_BLOCK)); if (psNewSyncBlk == IMG_NULL) { eError = PVRSRV_ERROR_OUT_OF_MEMORY; goto e0; } psNewSyncBlk->psDevNode = psDevNode; PDUMPCOMMENTWITHFLAGS(PDUMP_FLAGS_CONTINUOUS, "Allocate UFO block"); eError = psDevNode->pfnAllocUFOBlock(psDevNode, &psNewSyncBlk->psMemDesc, puiSyncPrimVAddr, &psNewSyncBlk->ui32BlockSize); if (eError != PVRSRV_OK) { goto e1; } eError = DevmemAcquireCpuVirtAddr(psNewSyncBlk->psMemDesc, (IMG_PVOID *) &psNewSyncBlk->pui32LinAddr); if (eError != PVRSRV_OK) { goto e2; } eError = DevmemExport(psNewSyncBlk->psMemDesc, &psNewSyncBlk->sExportCookie); if (eError != PVRSRV_OK) { goto e3; } eError = OSLockCreate(&psNewSyncBlk->hLock, LOCK_TYPE_NONE); if (eError != PVRSRV_OK) { goto e4; } psNewSyncBlk->ui32RefCount = 1; /* If there is a connection pointer then add the new block onto it's list */ _SyncConnectionAddBlock(psConnection, psNewSyncBlk); *psExportCookie = &psNewSyncBlk->sExportCookie; *ppsSyncBlk = psNewSyncBlk; *puiSyncPrimBlockSize = psNewSyncBlk->ui32BlockSize; PDUMPCOMMENTWITHFLAGS(PDUMP_FLAGS_CONTINUOUS, "Allocated UFO block (FirmwareVAddr = 0x%08x)", *puiSyncPrimVAddr); return PVRSRV_OK; e4: DevmemUnexport(psNewSyncBlk->psMemDesc, &psNewSyncBlk->sExportCookie); e3: DevmemReleaseCpuVirtAddr(psNewSyncBlk->psMemDesc); e2: psDevNode->pfnFreeUFOBlock(psDevNode, psNewSyncBlk->psMemDesc); e1: OSFreeMem(psNewSyncBlk); e0: return eError; }
/******************************************************************************* * TL Server public API implementation. ******************************************************************************/ PVRSRV_ERROR TLStreamCreate(IMG_HANDLE *phStream, IMG_CHAR *szStreamName, IMG_UINT32 ui32Size, IMG_UINT32 ui32StreamFlags, TL_STREAM_SOURCECB pfProducerCB, IMG_PVOID pvProducerUD) { PTL_STREAM psTmp; PVRSRV_ERROR eError; IMG_HANDLE hEventList; PTL_SNODE psn = 0; IMG_CHAR pszBufferLabel[PRVSRVTL_MAX_STREAM_NAME_SIZE+20]; DEVMEM_FLAGS_T uiMemFlags = PVRSRV_MEMALLOCFLAG_CPU_READABLE | PVRSRV_MEMALLOCFLAG_CPU_WRITEABLE | PVRSRV_MEMALLOCFLAG_GPU_READABLE | PVRSRV_MEMALLOCFLAG_GPU_WRITEABLE | PVRSRV_MEMALLOCFLAG_UNCACHED | /* GPU & CPU */ PVRSRV_MEMALLOCFLAG_ZERO_ON_ALLOC | PVRSRV_MEMALLOCFLAG_CPU_WRITE_COMBINE; PVR_DPF_ENTERED; /* Sanity checks: */ /* non NULL handler required */ if ( NULL == phStream ) { PVR_DPF_RETURN_RC(PVRSRV_ERROR_INVALID_PARAMS); } if (OSStringLength(szStreamName) >= PRVSRVTL_MAX_STREAM_NAME_SIZE) { PVR_DPF_RETURN_RC(PVRSRV_ERROR_INVALID_PARAMS); } /* Check if there already exists a stream with this name. */ psn = TLFindStreamNodeByName( szStreamName ); if ( IMG_NULL != psn ) { PVR_DPF_RETURN_RC(PVRSRV_ERROR_ALREADY_EXISTS); } /* Allocate stream structure container (stream struct) for the new stream */ psTmp = OSAllocZMem(sizeof(TL_STREAM)) ; if ( NULL == psTmp ) { PVR_DPF_RETURN_RC(PVRSRV_ERROR_OUT_OF_MEMORY); } OSStringCopy(psTmp->szName, szStreamName); if ( ui32StreamFlags & TL_FLAG_FORCE_FLUSH ) { psTmp->bWaitForEmptyOnDestroy = IMG_TRUE; } psTmp->bNoSignalOnCommit = (ui32StreamFlags&TL_FLAG_NO_SIGNAL_ON_COMMIT) ? IMG_TRUE : IMG_FALSE; if ( ui32StreamFlags & TL_FLAG_DROP_DATA ) { if ( ui32StreamFlags & TL_FLAG_BLOCKING_RESERVE ) { eError = PVRSRV_ERROR_INVALID_PARAMS; goto e0; } psTmp->bDrop = IMG_TRUE; } else if ( ui32StreamFlags & TL_FLAG_BLOCKING_RESERVE ) { /* Additional synchronization object required for this kind of stream */ psTmp->bBlock = IMG_TRUE; eError = OSEventObjectCreate(NULL, &psTmp->hProducerEventObj); if (eError != PVRSRV_OK) { goto e0; } /* Create an event handle for this kind of stream */ eError = OSEventObjectOpen(psTmp->hProducerEventObj, &psTmp->hProducerEvent); if (eError != PVRSRV_OK) { goto e1; } } /* Remember producer supplied CB and data for later */ psTmp->pfProducerCallback = (IMG_VOID(*)(IMG_VOID))pfProducerCB; psTmp->pvProducerUserData = pvProducerUD; /* Round the requested bytes to a multiple of array elements' size, eg round 3 to 4 */ psTmp->ui32Size = PVRSRVTL_ALIGN(ui32Size); psTmp->ui32Read = 0; psTmp->ui32Write = 0; psTmp->ui32Pending = NOTHING_PENDING; OSSNPrintf(pszBufferLabel, sizeof(pszBufferLabel), "TLStreamBuf-%s", szStreamName); /* Allocate memory for the circular buffer and export it to user space. */ eError = DevmemAllocateExportable( IMG_NULL, (IMG_HANDLE) TLGetGlobalRgxDevice(), (IMG_DEVMEM_SIZE_T)psTmp->ui32Size, (IMG_DEVMEM_ALIGN_T) OSGetPageSize(), uiMemFlags | PVRSRV_MEMALLOCFLAG_KERNEL_CPU_MAPPABLE, pszBufferLabel, &psTmp->psStreamMemDesc); PVR_LOGG_IF_ERROR(eError, "DevmemAllocateExportable", e2); eError = DevmemAcquireCpuVirtAddr( psTmp->psStreamMemDesc, (IMG_VOID**) &psTmp->pbyBuffer ); PVR_LOGG_IF_ERROR(eError, "DevmemAcquireCpuVirtAddr", e3); eError = DevmemExport(psTmp->psStreamMemDesc, &(psTmp->sExportCookie)); PVR_LOGG_IF_ERROR(eError, "DevmemExport", e4); /* Synchronization object to synchronize with user side data transfers. */ eError = OSEventObjectCreate(psTmp->szName, &hEventList); if (eError != PVRSRV_OK) { goto e5; } /* Stream created, now reset the reference count to 1 */ psTmp->uiRefCount = 1; //Thread Safety: Not yet implemented eError = OSLockCreate(&psTmp->hLock, LOCK_TYPE_PASSIVE); //Thread Safety: Not yet implemented if (eError != PVRSRV_OK) //Thread Safety: Not yet implemented { //Thread Safety: Not yet implemented goto e6; //Thread Safety: Not yet implemented } /* Now remember the stream in the global TL structures */ psn = TLMakeSNode(hEventList, (TL_STREAM *)psTmp, 0); if (psn == NULL) { eError=PVRSRV_ERROR_OUT_OF_MEMORY; goto e7; } TLAddStreamNode(psn); /* Best effort signal, client wait timeout will ultimately let it find the * new stream if this fails, acceptable to avoid cleanup as it is tricky * at this point */ (void) OSEventObjectSignal(TLGGD()->hTLEventObj); /* Pass the newly created stream handle back to caller */ *phStream = (IMG_HANDLE)psTmp; PVR_DPF_RETURN_OK; e7: //Thread Safety: Not yet implemented OSLockDestroy(psTmp->hLock); //Thread Safety: Not yet implemented e6: OSEventObjectDestroy(hEventList); e5: DevmemUnexport(psTmp->psStreamMemDesc, &(psTmp->sExportCookie)); e4: DevmemReleaseCpuVirtAddr( psTmp->psStreamMemDesc ); e3: DevmemFree(psTmp->psStreamMemDesc); e2: OSEventObjectClose(psTmp->hProducerEvent); e1: OSEventObjectDestroy(psTmp->hProducerEventObj); e0: OSFREEMEM(psTmp); PVR_DPF_RETURN_RC(eError); }