| /*************************************************************************/ /*! |
| @File |
| @Title Server bridge for htbuffer |
| @Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved |
| @Description Implements the server side of the bridge for htbuffer |
| @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 <asm/uaccess.h> |
| |
| #include "img_defs.h" |
| |
| #include "htbserver.h" |
| |
| |
| #include "common_htbuffer_bridge.h" |
| |
| #include "allocmem.h" |
| #include "pvr_debug.h" |
| #include "connection_server.h" |
| #include "pvr_bridge.h" |
| #include "rgx_bridge.h" |
| #include "srvcore.h" |
| #include "handle.h" |
| |
| #include <linux/slab.h> |
| |
| #include "lock.h" |
| |
| |
| #if !defined(EXCLUDE_HTBUFFER_BRIDGE) |
| |
| |
| |
| /* *************************************************************************** |
| * Server-side bridge entry points |
| */ |
| |
| static IMG_INT |
| PVRSRVBridgeHTBConfigure(IMG_UINT32 ui32DispatchTableEntry, |
| PVRSRV_BRIDGE_IN_HTBCONFIGURE *psHTBConfigureIN, |
| PVRSRV_BRIDGE_OUT_HTBCONFIGURE *psHTBConfigureOUT, |
| CONNECTION_DATA *psConnection) |
| { |
| IMG_CHAR *uiNameInt = NULL; |
| |
| IMG_UINT32 ui32NextOffset = 0; |
| IMG_BYTE *pArrayArgsBuffer = NULL; |
| #if !defined(INTEGRITY_OS) |
| IMG_BOOL bHaveEnoughSpace = IMG_FALSE; |
| #endif |
| |
| IMG_UINT32 ui32BufferSize = |
| (psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR)) + |
| 0; |
| |
| |
| PVR_UNREFERENCED_PARAMETER(psConnection); |
| |
| |
| |
| if (ui32BufferSize != 0) |
| { |
| #if !defined(INTEGRITY_OS) |
| /* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */ |
| IMG_UINT32 ui32InBufferOffset = PVR_ALIGN(sizeof(*psHTBConfigureIN), sizeof(unsigned long)); |
| IMG_UINT32 ui32InBufferExcessSize = ui32InBufferOffset >= PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 : |
| PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset; |
| |
| bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize; |
| if (bHaveEnoughSpace) |
| { |
| IMG_BYTE *pInputBuffer = (IMG_BYTE *)psHTBConfigureIN; |
| |
| pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset]; |
| } |
| else |
| #endif |
| { |
| pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize); |
| |
| if(!pArrayArgsBuffer) |
| { |
| psHTBConfigureOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY; |
| goto HTBConfigure_exit; |
| } |
| } |
| } |
| |
| if (psHTBConfigureIN->ui32NameSize != 0) |
| { |
| uiNameInt = (IMG_CHAR*)(((IMG_UINT8 *)pArrayArgsBuffer) + ui32NextOffset); |
| ui32NextOffset += psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR); |
| } |
| |
| /* Copy the data over */ |
| if (psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR) > 0) |
| { |
| if ( OSCopyFromUser(NULL, uiNameInt, psHTBConfigureIN->puiName, psHTBConfigureIN->ui32NameSize * sizeof(IMG_CHAR)) != PVRSRV_OK ) |
| { |
| psHTBConfigureOUT->eError = PVRSRV_ERROR_INVALID_PARAMS; |
| |
| goto HTBConfigure_exit; |
| } |
| } |
| |
| |
| psHTBConfigureOUT->eError = |
| HTBConfigureKM( |
| psHTBConfigureIN->ui32NameSize, |
| uiNameInt, |
| psHTBConfigureIN->ui32BufferSize); |
| |
| |
| |
| |
| HTBConfigure_exit: |
| |
| |
| |
| /* Allocated space should be equal to the last updated offset */ |
| PVR_ASSERT(ui32BufferSize == ui32NextOffset); |
| |
| #if defined(INTEGRITY_OS) |
| if(pArrayArgsBuffer) |
| #else |
| if(!bHaveEnoughSpace && pArrayArgsBuffer) |
| #endif |
| OSFreeMemNoStats(pArrayArgsBuffer); |
| |
| |
| return 0; |
| } |
| |
| |
| static IMG_INT |
| PVRSRVBridgeHTBControl(IMG_UINT32 ui32DispatchTableEntry, |
| PVRSRV_BRIDGE_IN_HTBCONTROL *psHTBControlIN, |
| PVRSRV_BRIDGE_OUT_HTBCONTROL *psHTBControlOUT, |
| CONNECTION_DATA *psConnection) |
| { |
| IMG_UINT32 *ui32GroupEnableInt = NULL; |
| |
| IMG_UINT32 ui32NextOffset = 0; |
| IMG_BYTE *pArrayArgsBuffer = NULL; |
| #if !defined(INTEGRITY_OS) |
| IMG_BOOL bHaveEnoughSpace = IMG_FALSE; |
| #endif |
| |
| IMG_UINT32 ui32BufferSize = |
| (psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32)) + |
| 0; |
| |
| |
| PVR_UNREFERENCED_PARAMETER(psConnection); |
| |
| |
| |
| if (ui32BufferSize != 0) |
| { |
| #if !defined(INTEGRITY_OS) |
| /* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */ |
| IMG_UINT32 ui32InBufferOffset = PVR_ALIGN(sizeof(*psHTBControlIN), sizeof(unsigned long)); |
| IMG_UINT32 ui32InBufferExcessSize = ui32InBufferOffset >= PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 : |
| PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset; |
| |
| bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize; |
| if (bHaveEnoughSpace) |
| { |
| IMG_BYTE *pInputBuffer = (IMG_BYTE *)psHTBControlIN; |
| |
| pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset]; |
| } |
| else |
| #endif |
| { |
| pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize); |
| |
| if(!pArrayArgsBuffer) |
| { |
| psHTBControlOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY; |
| goto HTBControl_exit; |
| } |
| } |
| } |
| |
| if (psHTBControlIN->ui32NumGroups != 0) |
| { |
| ui32GroupEnableInt = (IMG_UINT32*)(((IMG_UINT8 *)pArrayArgsBuffer) + ui32NextOffset); |
| ui32NextOffset += psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32); |
| } |
| |
| /* Copy the data over */ |
| if (psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32) > 0) |
| { |
| if ( OSCopyFromUser(NULL, ui32GroupEnableInt, psHTBControlIN->pui32GroupEnable, psHTBControlIN->ui32NumGroups * sizeof(IMG_UINT32)) != PVRSRV_OK ) |
| { |
| psHTBControlOUT->eError = PVRSRV_ERROR_INVALID_PARAMS; |
| |
| goto HTBControl_exit; |
| } |
| } |
| |
| |
| psHTBControlOUT->eError = |
| HTBControlKM( |
| psHTBControlIN->ui32NumGroups, |
| ui32GroupEnableInt, |
| psHTBControlIN->ui32LogLevel, |
| psHTBControlIN->ui32EnablePID, |
| psHTBControlIN->ui32LogMode, |
| psHTBControlIN->ui32OpMode); |
| |
| |
| |
| |
| HTBControl_exit: |
| |
| |
| |
| /* Allocated space should be equal to the last updated offset */ |
| PVR_ASSERT(ui32BufferSize == ui32NextOffset); |
| |
| #if defined(INTEGRITY_OS) |
| if(pArrayArgsBuffer) |
| #else |
| if(!bHaveEnoughSpace && pArrayArgsBuffer) |
| #endif |
| OSFreeMemNoStats(pArrayArgsBuffer); |
| |
| |
| return 0; |
| } |
| |
| |
| static IMG_INT |
| PVRSRVBridgeHTBLog(IMG_UINT32 ui32DispatchTableEntry, |
| PVRSRV_BRIDGE_IN_HTBLOG *psHTBLogIN, |
| PVRSRV_BRIDGE_OUT_HTBLOG *psHTBLogOUT, |
| CONNECTION_DATA *psConnection) |
| { |
| IMG_UINT32 *ui32ArgsInt = NULL; |
| |
| IMG_UINT32 ui32NextOffset = 0; |
| IMG_BYTE *pArrayArgsBuffer = NULL; |
| #if !defined(INTEGRITY_OS) |
| IMG_BOOL bHaveEnoughSpace = IMG_FALSE; |
| #endif |
| |
| IMG_UINT32 ui32BufferSize = |
| (psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32)) + |
| 0; |
| |
| |
| PVR_UNREFERENCED_PARAMETER(psConnection); |
| |
| |
| |
| if (ui32BufferSize != 0) |
| { |
| #if !defined(INTEGRITY_OS) |
| /* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */ |
| IMG_UINT32 ui32InBufferOffset = PVR_ALIGN(sizeof(*psHTBLogIN), sizeof(unsigned long)); |
| IMG_UINT32 ui32InBufferExcessSize = ui32InBufferOffset >= PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 : |
| PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset; |
| |
| bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize; |
| if (bHaveEnoughSpace) |
| { |
| IMG_BYTE *pInputBuffer = (IMG_BYTE *)psHTBLogIN; |
| |
| pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset]; |
| } |
| else |
| #endif |
| { |
| pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize); |
| |
| if(!pArrayArgsBuffer) |
| { |
| psHTBLogOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY; |
| goto HTBLog_exit; |
| } |
| } |
| } |
| |
| if (psHTBLogIN->ui32NumArgs != 0) |
| { |
| ui32ArgsInt = (IMG_UINT32*)(((IMG_UINT8 *)pArrayArgsBuffer) + ui32NextOffset); |
| ui32NextOffset += psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32); |
| } |
| |
| /* Copy the data over */ |
| if (psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32) > 0) |
| { |
| if ( OSCopyFromUser(NULL, ui32ArgsInt, psHTBLogIN->pui32Args, psHTBLogIN->ui32NumArgs * sizeof(IMG_UINT32)) != PVRSRV_OK ) |
| { |
| psHTBLogOUT->eError = PVRSRV_ERROR_INVALID_PARAMS; |
| |
| goto HTBLog_exit; |
| } |
| } |
| |
| |
| psHTBLogOUT->eError = |
| HTBLogKM( |
| psHTBLogIN->ui32PID, |
| psHTBLogIN->ui32TimeStamp, |
| psHTBLogIN->ui32SF, |
| psHTBLogIN->ui32NumArgs, |
| ui32ArgsInt); |
| |
| |
| |
| |
| HTBLog_exit: |
| |
| |
| |
| /* Allocated space should be equal to the last updated offset */ |
| PVR_ASSERT(ui32BufferSize == ui32NextOffset); |
| |
| #if defined(INTEGRITY_OS) |
| if(pArrayArgsBuffer) |
| #else |
| if(!bHaveEnoughSpace && pArrayArgsBuffer) |
| #endif |
| OSFreeMemNoStats(pArrayArgsBuffer); |
| |
| |
| return 0; |
| } |
| |
| |
| |
| |
| /* *************************************************************************** |
| * Server bridge dispatch related glue |
| */ |
| |
| static POS_LOCK pHTBUFFERBridgeLock; |
| static IMG_BOOL bUseLock = IMG_TRUE; |
| #endif /* EXCLUDE_HTBUFFER_BRIDGE */ |
| |
| #if !defined(EXCLUDE_HTBUFFER_BRIDGE) |
| PVRSRV_ERROR InitHTBUFFERBridge(void); |
| PVRSRV_ERROR DeinitHTBUFFERBridge(void); |
| |
| /* |
| * Register all HTBUFFER functions with services |
| */ |
| PVRSRV_ERROR InitHTBUFFERBridge(void) |
| { |
| PVR_LOGR_IF_ERROR(OSLockCreate(&pHTBUFFERBridgeLock, LOCK_TYPE_PASSIVE), "OSLockCreate"); |
| |
| SetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONFIGURE, PVRSRVBridgeHTBConfigure, |
| pHTBUFFERBridgeLock, bUseLock); |
| |
| SetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBCONTROL, PVRSRVBridgeHTBControl, |
| pHTBUFFERBridgeLock, bUseLock); |
| |
| SetDispatchTableEntry(PVRSRV_BRIDGE_HTBUFFER, PVRSRV_BRIDGE_HTBUFFER_HTBLOG, PVRSRVBridgeHTBLog, |
| pHTBUFFERBridgeLock, bUseLock); |
| |
| |
| return PVRSRV_OK; |
| } |
| |
| /* |
| * Unregister all htbuffer functions with services |
| */ |
| PVRSRV_ERROR DeinitHTBUFFERBridge(void) |
| { |
| PVR_LOGR_IF_ERROR(OSLockDestroy(pHTBUFFERBridgeLock), "OSLockDestroy"); |
| return PVRSRV_OK; |
| } |
| #else /* EXCLUDE_HTBUFFER_BRIDGE */ |
| /* This bridge is conditional on EXCLUDE_HTBUFFER_BRIDGE - when defined, |
| * do not populate the dispatch table with its functions |
| */ |
| #define InitHTBUFFERBridge() \ |
| PVRSRV_OK |
| |
| #define DeinitHTBUFFERBridge() \ |
| PVRSRV_OK |
| |
| #endif /* EXCLUDE_HTBUFFER_BRIDGE */ |