mirror of
https://github.com/revyos/thead-kernel.git
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This version update involves a lot of content, so the previous version has been deleted and the new version has been re-merged into the kernel. The configuration file for the GPU driver originates from a previous version. Signed-off-by: Mingzheng Xing <xingmingzheng@iscas.ac.cn>
458 lines
14 KiB
C
458 lines
14 KiB
C
/*******************************************************************************
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@File
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@Title Server bridge for cache
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@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
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@Description Implements the server side of the bridge for cache
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@License Dual MIT/GPLv2
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The contents of this file are subject to the MIT license as set out below.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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Alternatively, the contents of this file may be used under the terms of
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the GNU General Public License Version 2 ("GPL") in which case the provisions
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of GPL are applicable instead of those above.
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If you wish to allow use of your version of this file only under the terms of
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GPL, and not to allow others to use your version of this file under the terms
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of the MIT license, indicate your decision by deleting the provisions above
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and replace them with the notice and other provisions required by GPL as set
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out in the file called "GPL-COPYING" included in this distribution. If you do
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not delete the provisions above, a recipient may use your version of this file
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under the terms of either the MIT license or GPL.
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This License is also included in this distribution in the file called
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"MIT-COPYING".
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EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
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PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*******************************************************************************/
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#include <linux/uaccess.h>
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#include "img_defs.h"
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#include "cache_km.h"
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#include "common_cache_bridge.h"
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#include "allocmem.h"
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#include "pvr_debug.h"
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#include "connection_server.h"
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#include "pvr_bridge.h"
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#if defined(SUPPORT_RGX)
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#include "rgx_bridge.h"
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#endif
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#include "srvcore.h"
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#include "handle.h"
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#include <linux/slab.h>
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/* ***************************************************************************
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* Server-side bridge entry points
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*/
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static_assert(CACHE_BATCH_MAX <= IMG_UINT32_MAX,
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"CACHE_BATCH_MAX must not be larger than IMG_UINT32_MAX");
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static IMG_INT
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PVRSRVBridgeCacheOpQueue(IMG_UINT32 ui32DispatchTableEntry,
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IMG_UINT8 * psCacheOpQueueIN_UI8,
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IMG_UINT8 * psCacheOpQueueOUT_UI8, CONNECTION_DATA * psConnection)
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{
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PVRSRV_BRIDGE_IN_CACHEOPQUEUE *psCacheOpQueueIN =
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(PVRSRV_BRIDGE_IN_CACHEOPQUEUE *) IMG_OFFSET_ADDR(psCacheOpQueueIN_UI8, 0);
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PVRSRV_BRIDGE_OUT_CACHEOPQUEUE *psCacheOpQueueOUT =
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(PVRSRV_BRIDGE_OUT_CACHEOPQUEUE *) IMG_OFFSET_ADDR(psCacheOpQueueOUT_UI8, 0);
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PMR **psPMRInt = NULL;
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IMG_HANDLE *hPMRInt2 = NULL;
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IMG_UINT64 *ui64AddressInt = NULL;
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IMG_DEVMEM_OFFSET_T *uiOffsetInt = NULL;
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IMG_DEVMEM_SIZE_T *uiSizeInt = NULL;
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PVRSRV_CACHE_OP *iuCacheOpInt = NULL;
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IMG_UINT32 ui32NextOffset = 0;
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IMG_BYTE *pArrayArgsBuffer = NULL;
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#if !defined(INTEGRITY_OS)
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IMG_BOOL bHaveEnoughSpace = IMG_FALSE;
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#endif
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IMG_UINT32 ui32BufferSize = 0;
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IMG_UINT64 ui64BufferSize =
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((IMG_UINT64) psCacheOpQueueIN->ui32NumCacheOps * sizeof(PMR *)) +
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((IMG_UINT64) psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_HANDLE)) +
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((IMG_UINT64) psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_UINT64)) +
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((IMG_UINT64) psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_DEVMEM_OFFSET_T)) +
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((IMG_UINT64) psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_DEVMEM_SIZE_T)) +
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((IMG_UINT64) psCacheOpQueueIN->ui32NumCacheOps * sizeof(PVRSRV_CACHE_OP)) + 0;
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if (unlikely(psCacheOpQueueIN->ui32NumCacheOps > CACHE_BATCH_MAX))
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{
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psCacheOpQueueOUT->eError = PVRSRV_ERROR_BRIDGE_ARRAY_SIZE_TOO_BIG;
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goto CacheOpQueue_exit;
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}
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if (ui64BufferSize > IMG_UINT32_MAX)
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{
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psCacheOpQueueOUT->eError = PVRSRV_ERROR_BRIDGE_BUFFER_TOO_SMALL;
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goto CacheOpQueue_exit;
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}
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ui32BufferSize = (IMG_UINT32) ui64BufferSize;
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if (ui32BufferSize != 0)
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{
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#if !defined(INTEGRITY_OS)
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/* Try to use remainder of input buffer for copies if possible, word-aligned for safety. */
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IMG_UINT32 ui32InBufferOffset =
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PVR_ALIGN(sizeof(*psCacheOpQueueIN), sizeof(unsigned long));
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IMG_UINT32 ui32InBufferExcessSize =
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ui32InBufferOffset >=
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PVRSRV_MAX_BRIDGE_IN_SIZE ? 0 : PVRSRV_MAX_BRIDGE_IN_SIZE - ui32InBufferOffset;
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bHaveEnoughSpace = ui32BufferSize <= ui32InBufferExcessSize;
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if (bHaveEnoughSpace)
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{
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IMG_BYTE *pInputBuffer = (IMG_BYTE *) (void *)psCacheOpQueueIN;
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pArrayArgsBuffer = &pInputBuffer[ui32InBufferOffset];
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}
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else
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#endif
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{
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pArrayArgsBuffer = OSAllocMemNoStats(ui32BufferSize);
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if (!pArrayArgsBuffer)
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{
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psCacheOpQueueOUT->eError = PVRSRV_ERROR_OUT_OF_MEMORY;
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goto CacheOpQueue_exit;
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}
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}
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}
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if (psCacheOpQueueIN->ui32NumCacheOps != 0)
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{
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psPMRInt = (PMR **) IMG_OFFSET_ADDR(pArrayArgsBuffer, ui32NextOffset);
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OSCachedMemSet(psPMRInt, 0, psCacheOpQueueIN->ui32NumCacheOps * sizeof(PMR *));
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ui32NextOffset += psCacheOpQueueIN->ui32NumCacheOps * sizeof(PMR *);
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hPMRInt2 = (IMG_HANDLE *) IMG_OFFSET_ADDR(pArrayArgsBuffer, ui32NextOffset);
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ui32NextOffset += psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_HANDLE);
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}
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/* Copy the data over */
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if (psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_HANDLE) > 0)
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{
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if (OSCopyFromUser
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(NULL, hPMRInt2, (const void __user *)psCacheOpQueueIN->phPMR,
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psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_HANDLE)) != PVRSRV_OK)
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{
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psCacheOpQueueOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;
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goto CacheOpQueue_exit;
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}
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}
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if (psCacheOpQueueIN->ui32NumCacheOps != 0)
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{
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ui64AddressInt = (IMG_UINT64 *) IMG_OFFSET_ADDR(pArrayArgsBuffer, ui32NextOffset);
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ui32NextOffset += psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_UINT64);
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}
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/* Copy the data over */
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if (psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_UINT64) > 0)
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{
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if (OSCopyFromUser
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(NULL, ui64AddressInt, (const void __user *)psCacheOpQueueIN->pui64Address,
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psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_UINT64)) != PVRSRV_OK)
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{
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psCacheOpQueueOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;
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goto CacheOpQueue_exit;
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}
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}
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if (psCacheOpQueueIN->ui32NumCacheOps != 0)
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{
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uiOffsetInt =
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(IMG_DEVMEM_OFFSET_T *) IMG_OFFSET_ADDR(pArrayArgsBuffer, ui32NextOffset);
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ui32NextOffset += psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_DEVMEM_OFFSET_T);
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}
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/* Copy the data over */
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if (psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_DEVMEM_OFFSET_T) > 0)
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{
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if (OSCopyFromUser
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(NULL, uiOffsetInt, (const void __user *)psCacheOpQueueIN->puiOffset,
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psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_DEVMEM_OFFSET_T)) != PVRSRV_OK)
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{
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psCacheOpQueueOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;
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goto CacheOpQueue_exit;
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}
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}
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if (psCacheOpQueueIN->ui32NumCacheOps != 0)
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{
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uiSizeInt = (IMG_DEVMEM_SIZE_T *) IMG_OFFSET_ADDR(pArrayArgsBuffer, ui32NextOffset);
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ui32NextOffset += psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_DEVMEM_SIZE_T);
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}
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/* Copy the data over */
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if (psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_DEVMEM_SIZE_T) > 0)
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{
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if (OSCopyFromUser
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(NULL, uiSizeInt, (const void __user *)psCacheOpQueueIN->puiSize,
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psCacheOpQueueIN->ui32NumCacheOps * sizeof(IMG_DEVMEM_SIZE_T)) != PVRSRV_OK)
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{
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psCacheOpQueueOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;
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goto CacheOpQueue_exit;
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}
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}
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if (psCacheOpQueueIN->ui32NumCacheOps != 0)
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{
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iuCacheOpInt =
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(PVRSRV_CACHE_OP *) IMG_OFFSET_ADDR(pArrayArgsBuffer, ui32NextOffset);
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ui32NextOffset += psCacheOpQueueIN->ui32NumCacheOps * sizeof(PVRSRV_CACHE_OP);
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}
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/* Copy the data over */
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if (psCacheOpQueueIN->ui32NumCacheOps * sizeof(PVRSRV_CACHE_OP) > 0)
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{
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if (OSCopyFromUser
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(NULL, iuCacheOpInt, (const void __user *)psCacheOpQueueIN->piuCacheOp,
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psCacheOpQueueIN->ui32NumCacheOps * sizeof(PVRSRV_CACHE_OP)) != PVRSRV_OK)
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{
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psCacheOpQueueOUT->eError = PVRSRV_ERROR_INVALID_PARAMS;
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goto CacheOpQueue_exit;
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}
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}
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/* Lock over handle lookup. */
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LockHandle(psConnection->psHandleBase);
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{
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IMG_UINT32 i;
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for (i = 0; i < psCacheOpQueueIN->ui32NumCacheOps; i++)
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{
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/* Look up the address from the handle */
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psCacheOpQueueOUT->eError =
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PVRSRVLookupHandleUnlocked(psConnection->psHandleBase,
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(void **)&psPMRInt[i],
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hPMRInt2[i],
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PVRSRV_HANDLE_TYPE_PHYSMEM_PMR, IMG_TRUE);
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if (unlikely(psCacheOpQueueOUT->eError != PVRSRV_OK))
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{
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UnlockHandle(psConnection->psHandleBase);
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goto CacheOpQueue_exit;
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}
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}
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}
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/* Release now we have looked up handles. */
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UnlockHandle(psConnection->psHandleBase);
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psCacheOpQueueOUT->eError =
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CacheOpQueue(psConnection, OSGetDevNode(psConnection),
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psCacheOpQueueIN->ui32NumCacheOps,
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psPMRInt,
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ui64AddressInt,
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uiOffsetInt, uiSizeInt, iuCacheOpInt, psCacheOpQueueIN->ui32OpTimeline);
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CacheOpQueue_exit:
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/* Lock over handle lookup cleanup. */
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LockHandle(psConnection->psHandleBase);
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if (hPMRInt2)
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{
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IMG_UINT32 i;
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for (i = 0; i < psCacheOpQueueIN->ui32NumCacheOps; i++)
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{
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/* Unreference the previously looked up handle */
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if (psPMRInt[i])
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{
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PVRSRVReleaseHandleUnlocked(psConnection->psHandleBase,
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hPMRInt2[i],
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PVRSRV_HANDLE_TYPE_PHYSMEM_PMR);
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}
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}
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}
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/* Release now we have cleaned up look up handles. */
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UnlockHandle(psConnection->psHandleBase);
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/* Allocated space should be equal to the last updated offset */
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#ifdef PVRSRV_NEED_PVR_ASSERT
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if (psCacheOpQueueOUT->eError == PVRSRV_OK)
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PVR_ASSERT(ui32BufferSize == ui32NextOffset);
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#endif /* PVRSRV_NEED_PVR_ASSERT */
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#if defined(INTEGRITY_OS)
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if (pArrayArgsBuffer)
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#else
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if (!bHaveEnoughSpace && pArrayArgsBuffer)
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#endif
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OSFreeMemNoStats(pArrayArgsBuffer);
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return 0;
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}
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static IMG_INT
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PVRSRVBridgeCacheOpExec(IMG_UINT32 ui32DispatchTableEntry,
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IMG_UINT8 * psCacheOpExecIN_UI8,
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IMG_UINT8 * psCacheOpExecOUT_UI8, CONNECTION_DATA * psConnection)
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{
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PVRSRV_BRIDGE_IN_CACHEOPEXEC *psCacheOpExecIN =
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(PVRSRV_BRIDGE_IN_CACHEOPEXEC *) IMG_OFFSET_ADDR(psCacheOpExecIN_UI8, 0);
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PVRSRV_BRIDGE_OUT_CACHEOPEXEC *psCacheOpExecOUT =
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(PVRSRV_BRIDGE_OUT_CACHEOPEXEC *) IMG_OFFSET_ADDR(psCacheOpExecOUT_UI8, 0);
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IMG_HANDLE hPMR = psCacheOpExecIN->hPMR;
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PMR *psPMRInt = NULL;
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/* Lock over handle lookup. */
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LockHandle(psConnection->psHandleBase);
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/* Look up the address from the handle */
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psCacheOpExecOUT->eError =
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PVRSRVLookupHandleUnlocked(psConnection->psHandleBase,
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(void **)&psPMRInt,
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hPMR, PVRSRV_HANDLE_TYPE_PHYSMEM_PMR, IMG_TRUE);
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if (unlikely(psCacheOpExecOUT->eError != PVRSRV_OK))
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{
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UnlockHandle(psConnection->psHandleBase);
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goto CacheOpExec_exit;
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}
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/* Release now we have looked up handles. */
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UnlockHandle(psConnection->psHandleBase);
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psCacheOpExecOUT->eError =
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CacheOpValExec(psPMRInt,
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psCacheOpExecIN->ui64Address,
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psCacheOpExecIN->uiOffset,
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psCacheOpExecIN->uiSize, psCacheOpExecIN->iuCacheOp);
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CacheOpExec_exit:
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/* Lock over handle lookup cleanup. */
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LockHandle(psConnection->psHandleBase);
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/* Unreference the previously looked up handle */
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if (psPMRInt)
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{
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PVRSRVReleaseHandleUnlocked(psConnection->psHandleBase,
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hPMR, PVRSRV_HANDLE_TYPE_PHYSMEM_PMR);
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}
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/* Release now we have cleaned up look up handles. */
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UnlockHandle(psConnection->psHandleBase);
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return 0;
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}
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static IMG_INT
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PVRSRVBridgeCacheOpLog(IMG_UINT32 ui32DispatchTableEntry,
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IMG_UINT8 * psCacheOpLogIN_UI8,
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IMG_UINT8 * psCacheOpLogOUT_UI8, CONNECTION_DATA * psConnection)
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{
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PVRSRV_BRIDGE_IN_CACHEOPLOG *psCacheOpLogIN =
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(PVRSRV_BRIDGE_IN_CACHEOPLOG *) IMG_OFFSET_ADDR(psCacheOpLogIN_UI8, 0);
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PVRSRV_BRIDGE_OUT_CACHEOPLOG *psCacheOpLogOUT =
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(PVRSRV_BRIDGE_OUT_CACHEOPLOG *) IMG_OFFSET_ADDR(psCacheOpLogOUT_UI8, 0);
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IMG_HANDLE hPMR = psCacheOpLogIN->hPMR;
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PMR *psPMRInt = NULL;
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/* Lock over handle lookup. */
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LockHandle(psConnection->psHandleBase);
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/* Look up the address from the handle */
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psCacheOpLogOUT->eError =
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PVRSRVLookupHandleUnlocked(psConnection->psHandleBase,
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(void **)&psPMRInt,
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hPMR, PVRSRV_HANDLE_TYPE_PHYSMEM_PMR, IMG_TRUE);
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if (unlikely(psCacheOpLogOUT->eError != PVRSRV_OK))
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{
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UnlockHandle(psConnection->psHandleBase);
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goto CacheOpLog_exit;
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}
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/* Release now we have looked up handles. */
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UnlockHandle(psConnection->psHandleBase);
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psCacheOpLogOUT->eError =
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CacheOpLog(psPMRInt,
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psCacheOpLogIN->ui64Address,
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psCacheOpLogIN->uiOffset,
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psCacheOpLogIN->uiSize,
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psCacheOpLogIN->i64StartTime,
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psCacheOpLogIN->i64EndTime, psCacheOpLogIN->iuCacheOp);
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CacheOpLog_exit:
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/* Lock over handle lookup cleanup. */
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LockHandle(psConnection->psHandleBase);
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/* Unreference the previously looked up handle */
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if (psPMRInt)
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{
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PVRSRVReleaseHandleUnlocked(psConnection->psHandleBase,
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hPMR, PVRSRV_HANDLE_TYPE_PHYSMEM_PMR);
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}
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/* Release now we have cleaned up look up handles. */
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UnlockHandle(psConnection->psHandleBase);
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return 0;
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}
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/* ***************************************************************************
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* Server bridge dispatch related glue
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*/
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PVRSRV_ERROR InitCACHEBridge(void);
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void DeinitCACHEBridge(void);
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/*
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* Register all CACHE functions with services
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*/
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PVRSRV_ERROR InitCACHEBridge(void)
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{
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SetDispatchTableEntry(PVRSRV_BRIDGE_CACHE, PVRSRV_BRIDGE_CACHE_CACHEOPQUEUE,
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PVRSRVBridgeCacheOpQueue, NULL);
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SetDispatchTableEntry(PVRSRV_BRIDGE_CACHE, PVRSRV_BRIDGE_CACHE_CACHEOPEXEC,
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PVRSRVBridgeCacheOpExec, NULL);
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SetDispatchTableEntry(PVRSRV_BRIDGE_CACHE, PVRSRV_BRIDGE_CACHE_CACHEOPLOG,
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PVRSRVBridgeCacheOpLog, NULL);
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return PVRSRV_OK;
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}
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/*
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* Unregister all cache functions with services
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*/
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void DeinitCACHEBridge(void)
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{
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UnsetDispatchTableEntry(PVRSRV_BRIDGE_CACHE, PVRSRV_BRIDGE_CACHE_CACHEOPQUEUE);
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UnsetDispatchTableEntry(PVRSRV_BRIDGE_CACHE, PVRSRV_BRIDGE_CACHE_CACHEOPEXEC);
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UnsetDispatchTableEntry(PVRSRV_BRIDGE_CACHE, PVRSRV_BRIDGE_CACHE_CACHEOPLOG);
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}
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