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/*************************************************************************/ /*! @Title PVR Common Bridge Module (kernel side) @Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved @Description Receives calls from the user portion of services and despatches them to functions in the kernel portion. @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 <stddef.h> #include "img_defs.h" #include "services.h" #include "pvr_bridge_km.h" #include "pvr_debug.h" #include "ra.h" #include "pvr_bridge.h" #if defined(SUPPORT_SGX) #include "sgx_bridge.h" #endif #if defined(SUPPORT_VGX) #include "vgx_bridge.h" #endif #if defined(SUPPORT_MSVDX) #include "msvdx_bridge.h" #endif #include "perproc.h" #include "device.h" #include "buffer_manager.h" #include "refcount.h" #include "pdump_km.h" #include "syscommon.h" #include "bridged_pvr_bridge.h" #if defined(SUPPORT_SGX) #include "bridged_sgx_bridge.h" #endif #if defined(SUPPORT_VGX) #include "bridged_vgx_bridge.h" #endif #if defined(SUPPORT_MSVDX) #include "bridged_msvdx_bridge.h" #endif #include "env_data.h" #if defined (__linux__) || defined(__QNXNTO__) #include "mmap.h" #endif #include "srvkm.h" /* FIXME: we should include an OS specific header here to allow configuration of * which functions should be excluded (like the shared srvclient bridge code) * so that ports may choose to override certain things. */ /* For the purpose of maintainability, it is intended that this file should not * contain large amounts of OS specific #ifdefs. Headers are fine, and perhaps * a few one liners, but for anything more, please find a way to add e.g. * an osfunc.c abstraction or override the entire function in question within * env,*,pvr_bridge_k.c */ PVRSRV_BRIDGE_DISPATCH_TABLE_ENTRY g_BridgeDispatchTable[BRIDGE_DISPATCH_TABLE_ENTRY_COUNT]; #if defined(DEBUG_BRIDGE_KM) PVRSRV_BRIDGE_GLOBAL_STATS g_BridgeGlobalStats; #endif #if defined(PVR_SECURE_HANDLES) || defined (SUPPORT_SID_INTERFACE) static IMG_BOOL abSharedDeviceMemHeap[PVRSRV_MAX_CLIENT_HEAPS]; static IMG_BOOL *pbSharedDeviceMemHeap = abSharedDeviceMemHeap; #else static IMG_BOOL *pbSharedDeviceMemHeap = (IMG_BOOL*)IMG_NULL; #endif #if defined(DEBUG_BRIDGE_KM) PVRSRV_ERROR CopyFromUserWrapper(PVRSRV_PER_PROCESS_DATA *pProcData, IMG_UINT32 ui32BridgeID, IMG_VOID *pvDest, IMG_VOID *pvSrc, IMG_UINT32 ui32Size) { g_BridgeDispatchTable[ui32BridgeID].ui32CopyFromUserTotalBytes+=ui32Size; g_BridgeGlobalStats.ui32TotalCopyFromUserBytes+=ui32Size; return OSCopyFromUser(pProcData, pvDest, pvSrc, ui32Size); } PVRSRV_ERROR CopyToUserWrapper(PVRSRV_PER_PROCESS_DATA *pProcData, IMG_UINT32 ui32BridgeID, IMG_VOID *pvDest, IMG_VOID *pvSrc, IMG_UINT32 ui32Size) { g_BridgeDispatchTable[ui32BridgeID].ui32CopyToUserTotalBytes+=ui32Size; g_BridgeGlobalStats.ui32TotalCopyToUserBytes+=ui32Size; return OSCopyToUser(pProcData, pvDest, pvSrc, ui32Size); } #endif static IMG_INT PVRSRVEnumerateDevicesBW(IMG_UINT32 ui32BridgeID, IMG_VOID *psBridgeIn, PVRSRV_BRIDGE_OUT_ENUMDEVICE *psEnumDeviceOUT, PVRSRV_PER_PROCESS_DATA *psPerProc) { PVRSRV_BRIDGE_ASSERT_CMD(ui32BridgeID, PVRSRV_BRIDGE_ENUM_DEVICES); PVR_UNREFERENCED_PARAMETER(psPerProc); PVR_UNREFERENCED_PARAMETER(psBridgeIn); psEnumDeviceOUT->eError = PVRSRVEnumerateDevicesKM(&psEnumDeviceOUT->ui32NumDevices, psEnumDeviceOUT->asDeviceIdentifier); return 0; } static IMG_INT PVRSRVAcquireDeviceDataBW(IMG_UINT32 ui32BridgeID, PVRSRV_BRIDGE_IN_ACQUIRE_DEVICEINFO *psAcquireDevInfoIN, PVRSRV_BRIDGE_OUT_ACQUIRE_DEVICEINFO *psAcquireDevInfoOUT, PVRSRV_PER_PROCESS_DATA *psPerProc) { IMG_HANDLE hDevCookieInt; PVRSRV_BRIDGE_ASSERT_CMD(ui32BridgeID, PVRSRV_BRIDGE_ACQUIRE_DEVICEINFO); psAcquireDevInfoOUT->eError = PVRSRVAcquireDeviceDataKM(psAcquireDevInfoIN->uiDevIndex, psAcquireDevInfoIN->eDeviceType, &hDevCookieInt); if(psAcquireDevInfoOUT->eError != PVRSRV_OK) { return 0; } /* * Handle is not allocated in batch mode, as there is no resource * allocation to undo if the handle allocation fails. */ psAcquireDevInfoOUT->eError = PVRSRVAllocHandle(psPerProc->psHandleBase, &psAcquireDevInfoOUT->hDevCookie, hDevCookieInt, PVRSRV_HANDLE_TYPE_DEV_NODE, PVRSRV_HANDLE_ALLOC_FLAG_SHARED); return 0; } static IMG_INT PVRSRVCreateDeviceMemContextBW(IMG_UINT32 ui32BridgeID, PVRSRV_BRIDGE_IN_CREATE_DEVMEMCONTEXT *psCreateDevMemContextIN, PVRSRV_BRIDGE_OUT_CREATE_DEVMEMCONTEXT *psCreateDevMemContextOUT, PVRSRV_PER_PROCESS_DATA *psPerProc) { IMG_HANDLE hDevCookieInt; IMG_HANDLE hDevMemContextInt; IMG_UINT32 i; IMG_BOOL bCreated; #if defined (SUPPORT_SID_INTERFACE) PVRSRV_HEAP_INFO_KM asHeapInfo[PVRSRV_MAX_CLIENT_HEAPS]; #endif PVRSRV_BRIDGE_ASSERT_CMD(ui32BridgeID, PVRSRV_BRIDGE_CREATE_DEVMEMCONTEXT); /* * We potentially need one handle for the device memory context, * and one handle for each client heap. */ NEW_HANDLE_BATCH_OR_ERROR(psCreateDevMemContextOUT->eError, psPerProc, PVRSRV_MAX_CLIENT_HEAPS + 1) psCreateDevMemContextOUT->eError = PVRSRVLookupHandle(psPerProc->psHandleBase, &hDevCookieInt, psCreateDevMemContextIN->hDevCookie, PVRSRV_HANDLE_TYPE_DEV_NODE); if(psCreateDevMemContextOUT->eError != PVRSRV_OK) { return 0; } psCreateDevMemContextOUT->eError = PVRSRVCreateDeviceMemContextKM(hDevCookieInt, psPerProc, &hDevMemContextInt, &psCreateDevMemContextOUT->ui32ClientHeapCount, #if defined (SUPPORT_SID_INTERFACE) &asHeapInfo[0], #else &psCreateDevMemContextOUT->sHeapInfo[0], #endif &bCreated, pbSharedDeviceMemHeap); if(psCreateDevMemContextOUT->eError != PVRSRV_OK) { return 0; } /* * Only allocate a handle if the device memory context was cre