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Diffstat (limited to 'pvr-source/services4/srvkm/bridged/bridged_pvr_bridge.h')
| -rw-r--r-- | pvr-source/services4/srvkm/bridged/bridged_pvr_bridge.h | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/pvr-source/services4/srvkm/bridged/bridged_pvr_bridge.h b/pvr-source/services4/srvkm/bridged/bridged_pvr_bridge.h new file mode 100644 index 0000000..b0145f7 --- /dev/null +++ b/pvr-source/services4/srvkm/bridged/bridged_pvr_bridge.h @@ -0,0 +1,257 @@ +/*************************************************************************/ /*! +@Title PVR Bridge Functionality +@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved +@Description Header for the PVR Bridge code +@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. +*/ /**************************************************************************/ + +#ifndef __BRIDGED_PVR_BRIDGE_H__ +#define __BRIDGED_PVR_BRIDGE_H__ + +#include "pvr_bridge.h" + +#if defined(__cplusplus) +extern "C" { +#endif + +#if defined(__linux__) +#define PVRSRV_GET_BRIDGE_ID(X) _IOC_NR(X) +#else +#define PVRSRV_GET_BRIDGE_ID(X) ((X) - PVRSRV_IOWR(PVRSRV_BRIDGE_CORE_CMD_FIRST)) +#endif + +#ifndef ENOMEM +#define ENOMEM 12 +#endif +#ifndef EFAULT +#define EFAULT 14 +#endif +#ifndef ENOTTY +#define ENOTTY 25 +#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); +PVRSRV_ERROR +CopyToUserWrapper(PVRSRV_PER_PROCESS_DATA *pProcData, + IMG_UINT32 ui32BridgeID, + IMG_VOID *pvDest, + IMG_VOID *pvSrc, + IMG_UINT32 ui32Size); +#else +#define CopyFromUserWrapper(pProcData, ui32BridgeID, pvDest, pvSrc, ui32Size) \ + OSCopyFromUser(pProcData, pvDest, pvSrc, ui32Size) +#define CopyToUserWrapper(pProcData, ui32BridgeID, pvDest, pvSrc, ui32Size) \ + OSCopyToUser(pProcData, pvDest, pvSrc, ui32Size) +#endif + + +#define ASSIGN_AND_RETURN_ON_ERROR(error, src, res) \ + do \ + { \ + (error) = (src); \ + if ((error) != PVRSRV_OK) \ + { \ + return (res); \ + } \ + } while ((error) != PVRSRV_OK); + +#define ASSIGN_AND_EXIT_ON_ERROR(error, src) \ + ASSIGN_AND_RETURN_ON_ERROR(error, src, 0) + +#if defined (PVR_SECURE_HANDLES) || defined (SUPPORT_SID_INTERFACE) +#ifdef INLINE_IS_PRAGMA +#pragma inline(NewHandleBatch) +#endif +static INLINE PVRSRV_ERROR +NewHandleBatch(PVRSRV_PER_PROCESS_DATA *psPerProc, + IMG_UINT32 ui32BatchSize) +{ + PVRSRV_ERROR eError; + + PVR_ASSERT(!psPerProc->bHandlesBatched); + + eError = PVRSRVNewHandleBatch(psPerProc->psHandleBase, ui32BatchSize); + + if (eError == PVRSRV_OK) + { + psPerProc->bHandlesBatched = IMG_TRUE; + } + + return eError; +} + +#define NEW_HANDLE_BATCH_OR_ERROR(error, psPerProc, ui32BatchSize) \ + ASSIGN_AND_EXIT_ON_ERROR(error, NewHandleBatch(psPerProc, ui32BatchSize)) + +#ifdef INLINE_IS_PRAGMA +#pragma inline(CommitHandleBatch) +#endif +static INLINE PVRSRV_ERROR +CommitHandleBatch(PVRSRV_PER_PROCESS_DATA *psPerProc) +{ + PVR_ASSERT(psPerProc->bHandlesBatched); + + psPerProc->bHandlesBatched = IMG_FALSE; + + return PVRSRVCommitHandleBatch(psPerProc->psHandleBase); +} + + +#define COMMIT_HANDLE_BATCH_OR_ERROR(error, psPerProc) \ + ASSIGN_AND_EXIT_ON_ERROR(error, CommitHandleBatch(psPerProc)) + +#ifdef INLINE_IS_PRAGMA +#pragma inline(ReleaseHandleBatch) +#endif +static INLINE IMG_VOID +ReleaseHandleBatch(PVRSRV_PER_PROCESS_DATA *psPerProc) +{ + if (psPerProc->bHandlesBatched) + { + psPerProc->bHandlesBatched = IMG_FALSE; + + PVRSRVReleaseHandleBatch(psPerProc->psHandleBase); + } +} +#else /* defined(PVR_SECURE_HANDLES) */ +#define NEW_HANDLE_BATCH_OR_ERROR(error, psPerProc, ui32BatchSize) +#define COMMIT_HANDLE_BATCH_OR_ERROR(error, psPerProc) +#define ReleaseHandleBatch(psPerProc) +#endif /* defined(PVR_SECURE_HANDLES) */ + +IMG_INT +DummyBW(IMG_UINT32 ui32BridgeID, + IMG_VOID *psBridgeIn, + IMG_VOID *psBridgeOut, + PVRSRV_PER_PROCESS_DATA *psPerProc); + +typedef IMG_INT (*BridgeWrapperFunction)(IMG_UINT32 ui32BridgeID, + IMG_VOID *psBridgeIn, + IMG_VOID *psBridgeOut, + PVRSRV_PER_PROCESS_DATA *psPerProc); + +typedef struct _PVRSRV_BRIDGE_DISPATCH_TABLE_ENTRY +{ + BridgeWrapperFunction pfFunction; /*!< The wrapper function that validates the ioctl + arguments before calling into srvkm proper */ +#if defined(DEBUG_BRIDGE_KM) + const IMG_CHAR *pszIOCName; /*!< Name of the ioctl: e.g. "PVRSRV_BRIDGE_CONNECT_SERVICES" */ + const IMG_CHAR *pszFunctionName; /*!< Name of the wrapper function: e.g. "PVRSRVConnectBW" */ + IMG_UINT32 ui32CallCount; /*!< The total number of times the ioctl has been called */ + IMG_UINT32 ui32CopyFromUserTotalBytes; /*!< The total number of bytes copied from + userspace within this ioctl */ + IMG_UINT32 ui32CopyToUserTotalBytes; /*!< The total number of bytes copied from + userspace within this ioctl */ +#endif +}PVRSRV_BRIDGE_DISPATCH_TABLE_ENTRY; + +#if defined(SUPPORT_VGX) || defined(SUPPORT_MSVDX) + #if defined(SUPPORT_VGX) + #define BRIDGE_DISPATCH_TABLE_ENTRY_COUNT (PVRSRV_BRIDGE_LAST_VGX_CMD+1) + #define PVRSRV_BRIDGE_LAST_DEVICE_CMD PVRSRV_BRIDGE_LAST_VGX_CMD + #else + #define BRIDGE_DISPATCH_TABLE_ENTRY_COUNT (PVRSRV_BRIDGE_LAST_MSVDX_CMD+1) + #define PVRSRV_BRIDGE_LAST_DEVICE_CMD PVRSRV_BRIDGE_LAST_MSVDX_CMD + #endif +#else + #if defined(SUPPORT_SGX) + #define BRIDGE_DISPATCH_TABLE_ENTRY_COUNT (PVRSRV_BRIDGE_LAST_SGX_CMD+1) + #define PVRSRV_BRIDGE_LAST_DEVICE_CMD PVRSRV_BRIDGE_LAST_SGX_CMD + #else + #define BRIDGE_DISPATCH_TABLE_ENTRY_COUNT (PVRSRV_BRIDGE_LAST_NON_DEVICE_CMD+1) + #define PVRSRV_BRIDGE_LAST_DEVICE_CMD PVRSRV_BRIDGE_LAST_NON_DEVICE_CMD + #endif +#endif + +extern PVRSRV_BRIDGE_DISPATCH_TABLE_ENTRY g_BridgeDispatchTable[BRIDGE_DISPATCH_TABLE_ENTRY_COUNT]; + +IMG_VOID +_SetDispatchTableEntry(IMG_UINT32 ui32Index, + const IMG_CHAR *pszIOCName, + BridgeWrapperFunction pfFunction, + const IMG_CHAR *pszFunctionName); + + +/* PRQA S 0884,3410 2*/ /* macro relies on the lack of brackets */ +#define SetDispatchTableEntry(ui32Index, pfFunction) \ + _SetDispatchTableEntry(PVRSRV_GET_BRIDGE_ID(ui32Index), #ui32Index, (BridgeWrapperFunction)pfFunction, #pfFunction) + +#define DISPATCH_TABLE_GAP_THRESHOLD 5 + +#if defined(DEBUG) +#define PVRSRV_BRIDGE_ASSERT_CMD(X, Y) PVR_ASSERT(X == PVRSRV_GET_BRIDGE_ID(Y)) +#else +#define PVRSRV_BRIDGE_ASSERT_CMD(X, Y) PVR_UNREFERENCED_PARAMETER(X) +#endif + + +#if defined(DEBUG_BRIDGE_KM) +typedef struct _PVRSRV_BRIDGE_GLOBAL_STATS +{ + IMG_UINT32 ui32IOCTLCount; + IMG_UINT32 ui32TotalCopyFromUserBytes; + IMG_UINT32 ui32TotalCopyToUserBytes; +}PVRSRV_BRIDGE_GLOBAL_STATS; + +/* OS specific code way want to report the stats held here and within the + * BRIDGE_DISPATCH_TABLE_ENTRYs (E.g. on Linux we report these via a + * proc entry /proc/pvr/bridge_stats. Ref printLinuxBridgeStats()) */ +extern PVRSRV_BRIDGE_GLOBAL_STATS g_BridgeGlobalStats; +#endif + + +PVRSRV_ERROR CommonBridgeInit(IMG_VOID); + +IMG_INT BridgedDispatchKM(PVRSRV_PER_PROCESS_DATA * psPerProc, + PVRSRV_BRIDGE_PACKAGE * psBridgePackageKM); + +#if defined (__cplusplus) +} +#endif + +#endif /* __BRIDGED_PVR_BRIDGE_H__ */ + +/****************************************************************************** + End of file (bridged_pvr_bridge.h) +******************************************************************************/ |