diff options
Diffstat (limited to 'pvr-source/services4/srvkm/env/linux/pvr_bridge_k.c')
| -rwxr-xr-x | pvr-source/services4/srvkm/env/linux/pvr_bridge_k.c | 524 |
1 files changed, 0 insertions, 524 deletions
diff --git a/pvr-source/services4/srvkm/env/linux/pvr_bridge_k.c b/pvr-source/services4/srvkm/env/linux/pvr_bridge_k.c deleted file mode 100755 index 23379b9..0000000 --- a/pvr-source/services4/srvkm/env/linux/pvr_bridge_k.c +++ /dev/null @@ -1,524 +0,0 @@ -/*************************************************************************/ /*! -@Title PVR 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 "img_defs.h" -#include "services.h" -#include "pvr_bridge.h" -#include "perproc.h" -#include "mutex.h" -#include "syscommon.h" -#include "pvr_debug.h" -#include "proc.h" -#include "private_data.h" -#include "linkage.h" -#include "pvr_bridge_km.h" -#include "pvr_uaccess.h" -#include "refcount.h" -#include "buffer_manager.h" - -#if defined(SUPPORT_DRI_DRM) -#include <drm/drmP.h> -#include "pvr_drm.h" -#if defined(PVR_SECURE_DRM_AUTH_EXPORT) -#include "env_perproc.h" -#endif -#endif - -/* VGX: */ -#if defined(SUPPORT_VGX) -#include "vgx_bridge.h" -#endif - -/* SGX: */ -#if defined(SUPPORT_SGX) -#include "sgx_bridge.h" -#endif - -#include "bridged_pvr_bridge.h" - -#if defined(SUPPORT_DRI_DRM) -#define PRIVATE_DATA(pFile) ((pFile)->driver_priv) -#else -#define PRIVATE_DATA(pFile) ((pFile)->private_data) -#endif - -#if defined(DEBUG_BRIDGE_KM) - -static struct proc_dir_entry *g_ProcBridgeStats =0; -static void* ProcSeqNextBridgeStats(struct seq_file *sfile,void* el,loff_t off); -static void ProcSeqShowBridgeStats(struct seq_file *sfile,void* el); -static void* ProcSeqOff2ElementBridgeStats(struct seq_file * sfile, loff_t off); -static void ProcSeqStartstopBridgeStats(struct seq_file *sfile,IMG_BOOL start); - -#endif - -extern PVRSRV_LINUX_MUTEX gPVRSRVLock; - -#if defined(SUPPORT_MEMINFO_IDS) -static IMG_UINT64 ui64Stamp; -#endif /* defined(SUPPORT_MEMINFO_IDS) */ - -PVRSRV_ERROR -LinuxBridgeInit(IMG_VOID) -{ -#if defined(DEBUG_BRIDGE_KM) - { - g_ProcBridgeStats = CreateProcReadEntrySeq( - "bridge_stats", - NULL, - ProcSeqNextBridgeStats, - ProcSeqShowBridgeStats, - ProcSeqOff2ElementBridgeStats, - ProcSeqStartstopBridgeStats - ); - if(!g_ProcBridgeStats) - { - return PVRSRV_ERROR_OUT_OF_MEMORY; - } - } -#endif - return CommonBridgeInit(); -} - -IMG_VOID -LinuxBridgeDeInit(IMG_VOID) -{ -#if defined(DEBUG_BRIDGE_KM) - RemoveProcEntrySeq(g_ProcBridgeStats); -#endif -} - -#if defined(DEBUG_BRIDGE_KM) - -/* - * Lock MMap regions list (called on page start/stop while reading /proc/mmap) - * - * sfile : seq_file that handles /proc file - * start : TRUE if it's start, FALSE if it's stop - * - */ -static void ProcSeqStartstopBridgeStats(struct seq_file *sfile,IMG_BOOL start) -{ - if(start) - { - LinuxLockMutexNested(&gPVRSRVLock, PVRSRV_LOCK_CLASS_BRIDGE); - } - else - { - LinuxUnLockMutex(&gPVRSRVLock); - } -} - - -/* - * Convert offset (index from KVOffsetTable) to element - * (called when reading /proc/mmap file) - - * sfile : seq_file that handles /proc file - * off : index into the KVOffsetTable from which to print - * - * returns void* : Pointer to element that will be dumped - * -*/ -static void* ProcSeqOff2ElementBridgeStats(struct seq_file *sfile, loff_t off) -{ - if(!off) - { - return PVR_PROC_SEQ_START_TOKEN; - } - - if(off > BRIDGE_DISPATCH_TABLE_ENTRY_COUNT) - { - return (void*)0; - } - - - return (void*)&g_BridgeDispatchTable[off-1]; -} - -/* - * Gets next MMap element to show. (called when reading /proc/mmap file) - - * sfile : seq_file that handles /proc file - * el : actual element - * off : index into the KVOffsetTable from which to print - * - * returns void* : Pointer to element to show (0 ends iteration) -*/ -static void* ProcSeqNextBridgeStats(struct seq_file *sfile,void* el,loff_t off) -{ - return ProcSeqOff2ElementBridgeStats(sfile,off); -} - - -/* - * Show MMap element (called when reading /proc/mmap file) - - * sfile : seq_file that handles /proc file - * el : actual element - * -*/ -static void ProcSeqShowBridgeStats(struct seq_file *sfile,void* el) -{ - PVRSRV_BRIDGE_DISPATCH_TABLE_ENTRY *psEntry = ( PVRSRV_BRIDGE_DISPATCH_TABLE_ENTRY*)el; - - if(el == PVR_PROC_SEQ_START_TOKEN) - { - seq_printf(sfile, - "Total ioctl call count = %u\n" - "Total number of bytes copied via copy_from_user = %u\n" - "Total number of bytes copied via copy_to_user = %u\n" - "Total number of bytes copied via copy_*_user = %u\n\n" - "%-45s | %-40s | %10s | %20s | %10s\n", - g_BridgeGlobalStats.ui32IOCTLCount, - g_BridgeGlobalStats.ui32TotalCopyFromUserBytes, - g_BridgeGlobalStats.ui32TotalCopyToUserBytes, - g_BridgeGlobalStats.ui32TotalCopyFromUserBytes+g_BridgeGlobalStats.ui32TotalCopyToUserBytes, - "Bridge Name", - "Wrapper Function", - "Call Count", - "copy_from_user Bytes", - "copy_to_user Bytes" - ); - return; - } - - seq_printf(sfile, - "%-45s %-40s %-10u %-20u %-10u\n", - psEntry->pszIOCName, - psEntry->pszFunctionName, - psEntry->ui32CallCount, - psEntry->ui32CopyFromUserTotalBytes, - psEntry->ui32CopyToUserTotalBytes); -} - -#endif /* DEBUG_BRIDGE_KM */ - - -#if defined(SUPPORT_DRI_DRM) -int -PVRSRV_BridgeDispatchKM(struct drm_device unref__ *dev, void *arg, struct drm_file *pFile) -#else -long -PVRSRV_BridgeDispatchKM(struct file *pFile, unsigned int unref__ ioctlCmd, unsigned long arg) -#endif -{ - IMG_UINT32 cmd; -#if !defined(SUPPORT_DRI_DRM) - PVRSRV_BRIDGE_PACKAGE *psBridgePackageUM = (PVRSRV_BRIDGE_PACKAGE *)arg; - PVRSRV_BRIDGE_PACKAGE sBridgePackageKM; -#endif - PVRSRV_BRIDGE_PACKAGE *psBridgePackageKM; - IMG_UINT32 ui32PID = OSGetCurrentProcessIDKM(); - PVRSRV_PER_PROCESS_DATA *psPerProc; - IMG_INT err = -EFAULT; - - LinuxLockMutexNested(&gPVRSRVLock, PVRSRV_LOCK_CLASS_BRIDGE); - -#if defined(SUPPORT_DRI_DRM) - psBridgePackageKM = (PVRSRV_BRIDGE_PACKAGE *)arg; - PVR_ASSERT(psBridgePackageKM != IMG_NULL); -#else - psBridgePackageKM = &sBridgePackageKM; - - if(!OSAccessOK(PVR_VERIFY_WRITE, - psBridgePackageUM, - sizeof(PVRSRV_BRIDGE_PACKAGE))) - { - PVR_DPF((PVR_DBG_ERROR, "%s: Received invalid pointer to function arguments", - __FUNCTION__)); - - goto unlock_and_return; - } - - /* FIXME - Currently the CopyFromUserWrapper which collects stats about - * how much data is shifted to/from userspace isn't available to us - * here. */ - if(OSCopyFromUser(IMG_NULL, - psBridgePackageKM, - psBridgePackageUM, - sizeof(PVRSRV_BRIDGE_PACKAGE)) - != PVRSRV_OK) - { - goto unlock_and_return; - } -#endif - - cmd = psBridgePackageKM->ui32BridgeID; - - if(cmd != PVRSRV_BRIDGE_CONNECT_SERVICES) - { - PVRSRV_ERROR eError; - - eError = PVRSRVLookupHandle(KERNEL_HANDLE_BASE, - (IMG_PVOID *)&psPerProc, - psBridgePackageKM->hKernelServices, - PVRSRV_HANDLE_TYPE_PERPROC_DATA); - if(eError != PVRSRV_OK) - { - PVR_DPF((PVR_DBG_ERROR, "%s: Invalid kernel services handle (%d)", - __FUNCTION__, eError)); - goto unlock_and_return; - } - - if(psPerProc->ui32PID != ui32PID) - { - PVR_DPF((PVR_DBG_ERROR, "%s: Process %d tried to access data " - "belonging to process %d", __FUNCTION__, ui32PID, - psPerProc->ui32PID)); - goto unlock_and_return; - } - } - else - { - /* lookup per-process data for this process */ - psPerProc = PVRSRVPerProcessData(ui32PID); - if(psPerProc == IMG_NULL) - { - PVR_DPF((PVR_DBG_ERROR, "PVRSRV_BridgeDispatchKM: " - "Couldn't create per-process data area")); - goto unlock_and_return; - } - } - - psBridgePackageKM->ui32BridgeID = PVRSRV_GET_BRIDGE_ID(psBridgePackageKM->ui32BridgeID); - - switch(cmd) - { - case PVRSRV_BRIDGE_EXPORT_DEVICEMEM_2: - { - PVRSRV_FILE_PRIVATE_DATA *psPrivateData = PRIVATE_DATA(pFile); - - if(psPrivateData->hKernelMemInfo) - { - PVR_DPF((PVR_DBG_ERROR, "%s: Can only export one MemInfo " - "per file descriptor", __FUNCTION__)); - err = -EINVAL; - goto unlock_and_return; - } - break; - } - - case PVRSRV_BRIDGE_MAP_DEV_MEMORY_2: - { - PVRSRV_BRIDGE_IN_MAP_DEV_MEMORY *psMapDevMemIN = - (PVRSRV_BRIDGE_IN_MAP_DEV_MEMORY *)psBridgePackageKM->pvParamIn; - PVRSRV_FILE_PRIVATE_DATA *psPrivateData = PRIVATE_DATA(pFile); - - if(!psPrivateData->hKernelMemInfo) - { - PVR_DPF((PVR_DBG_ERROR, "%s: File descriptor has no " - "associated MemInfo handle", __FUNCTION__)); - err = -EINVAL; - goto unlock_and_return; - } - - if (pvr_put_user(psPrivateData->hKernelMemInfo, &psMapDevMemIN->hKernelMemInfo) != 0) - { - err = -EFAULT; - goto unlock_and_return; - } - break; - } - - default: - { - PVRSRV_FILE_PRIVATE_DATA *psPrivateData = PRIVATE_DATA(pFile); - - if(psPrivateData->hKernelMemInfo) - { - PVR_DPF((PVR_DBG_ERROR, "%s: Import/Export handle tried " - "to use privileged service", __FUNCTION__)); - goto unlock_and_return; - } - break; - } - } - -#if defined(SUPPORT_DRI_DRM) && defined(PVR_SECURE_DRM_AUTH_EXPORT) - switch(cmd) - { - case PVRSRV_BRIDGE_MAP_DEV_MEMORY: - case PVRSRV_BRIDGE_MAP_DEVICECLASS_MEMORY: - { - PVRSRV_FILE_PRIVATE_DATA *psPrivateData; - int authenticated = pFile->authenticated; - PVRSRV_ENV_PER_PROCESS_DATA *psEnvPerProc; - - if (authenticated) - { - break; - } - - /* - * The DRM file structure we are using for Services - * is not one that DRI authentication was done on. - * Look for an authenticated file structure for - * this process, making sure the DRM master is the - * same as ours. - */ - psEnvPerProc = (PVRSRV_ENV_PER_PROCESS_DATA *)PVRSRVProcessPrivateData(psPerProc); - if (psEnvPerProc == IMG_NULL) - { - PVR_DPF((PVR_DBG_ERROR, "%s: Process private data not allocated", __FUNCTION__)); - err = -EFAULT; - goto unlock_and_return; - } - - list_for_each_entry(psPrivateData, &psEnvPerProc->sDRMAuthListHead, sDRMAuthListItem) - { - struct drm_file *psDRMFile = psPrivateData->psDRMFile; - - if (pFile->master == psDRMFile->master) - { - authenticated |= psDRMFile->authenticated; - if (authenticated) - { - break; - } - } - } - - if (!authenticated) - { - PVR_DPF((PVR_DBG_ERROR, "%s: Not authenticated for mapping device or device class memory", __FUNCTION__)); - err = -EPERM; - goto unlock_and_return; - } - break; - } - default: - break; - } -#endif /* defined(SUPPORT_DRI_DRM) && defined(PVR_SECURE_DRM_AUTH_EXPORT) */ - - err = BridgedDispatchKM(psPerProc, psBridgePackageKM); - if(err != PVRSRV_OK) - goto unlock_and_return; - - switch(cmd) - { - case PVRSRV_BRIDGE_EXPORT_DEVICEMEM_2: - { - PVRSRV_BRIDGE_OUT_EXPORTDEVICEMEM *psExportDeviceMemOUT = - (PVRSRV_BRIDGE_OUT_EXPORTDEVICEMEM *)psBridgePackageKM->pvParamOut; - PVRSRV_FILE_PRIVATE_DATA *psPrivateData = PRIVATE_DATA(pFile); - IMG_HANDLE hMemInfo; - PVRSRV_KERNEL_MEM_INFO *psKernelMemInfo; - - if (pvr_get_user(hMemInfo, &psExportDeviceMemOUT->hMemInfo) != 0) - { - err = -EFAULT; - goto unlock_and_return; - } - - /* Look up the meminfo we just exported */ - if(PVRSRVLookupHandle(KERNEL_HANDLE_BASE, - (IMG_PVOID *)&psKernelMemInfo, - hMemInfo, - PVRSRV_HANDLE_TYPE_MEM_INFO) != PVRSRV_OK) - { - PVR_DPF((PVR_DBG_ERROR, "%s: Failed to look up export handle", __FUNCTION__)); - err = -EFAULT; - goto unlock_and_return; - } - - /* Bump the refcount; decremented on release of the fd */ - PVRSRVKernelMemInfoIncRef(psKernelMemInfo); - - /* Tell the XProc about the export if required */ - if (psKernelMemInfo->sShareMemWorkaround.bInUse) - { - BM_XProcIndexAcquire(psKernelMemInfo->sShareMemWorkaround.ui32ShareIndex); - } - - psPrivateData->hKernelMemInfo = hMemInfo; -#if defined(SUPPORT_MEMINFO_IDS) - psPrivateData->ui64Stamp = ++ui64Stamp; - - psKernelMemInfo->ui64Stamp = psPrivateData->ui64Stamp; - if (pvr_put_user(psPrivateData->ui64Stamp, &psExportDeviceMemOUT->ui64Stamp) != 0) - { - err = -EFAULT; - goto unlock_and_return; - } -#endif - break; - } - -#if defined(SUPPORT_MEMINFO_IDS) - case PVRSRV_BRIDGE_MAP_DEV_MEMORY: - case PVRSRV_BRIDGE_MAP_DEV_MEMORY_2: - { - PVRSRV_BRIDGE_OUT_MAP_DEV_MEMORY *psMapDeviceMemoryOUT = - (PVRSRV_BRIDGE_OUT_MAP_DEV_MEMORY *)psBridgePackageKM->pvParamOut; - PVRSRV_FILE_PRIVATE_DATA *psPrivateData = PRIVATE_DATA(pFile); - if (pvr_put_user(psPrivateData->ui64Stamp, &psMapDeviceMemoryOUT->sDstClientMemInfo.ui64Stamp) != 0) - { - err = -EFAULT; - goto unlock_and_return; - } - break; - } - - case PVRSRV_BRIDGE_MAP_DEVICECLASS_MEMORY: - { - PVRSRV_BRIDGE_OUT_MAP_DEVICECLASS_MEMORY *psDeviceClassMemoryOUT = - (PVRSRV_BRIDGE_OUT_MAP_DEVICECLASS_MEMORY *)psBridgePackageKM->pvParamOut; - if (pvr_put_user(++ui64Stamp, &psDeviceClassMemoryOUT->sClientMemInfo.ui64Stamp) != 0) - { - err = -EFAULT; - goto unlock_and_return; - } - break; - } -#endif /* defined(SUPPORT_MEMINFO_IDS) */ - - default: - break; - } - -unlock_and_return: - LinuxUnLockMutex(&gPVRSRVLock); - return err; -} |