mirror of
https://github.com/revyos/thead-kernel.git
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f72e7cd077
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>
410 lines
13 KiB
C
410 lines
13 KiB
C
/*******************************************************************************
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@File
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@Title Server bridge for cmm
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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 cmm
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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 "pmr.h"
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#include "devicemem_server.h"
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#include "common_cmm_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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#if !defined(EXCLUDE_CMM_BRIDGE)
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/* ***************************************************************************
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* Server-side bridge entry points
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*/
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static PVRSRV_ERROR _DevmemIntExportCtxpsContextExportIntRelease(void *pvData)
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{
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PVRSRV_ERROR eError;
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eError = DevmemIntUnexportCtx((DEVMEMINT_CTX_EXPORT *) pvData);
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return eError;
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}
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static IMG_INT
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PVRSRVBridgeDevmemIntExportCtx(IMG_UINT32 ui32DispatchTableEntry,
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IMG_UINT8 * psDevmemIntExportCtxIN_UI8,
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IMG_UINT8 * psDevmemIntExportCtxOUT_UI8,
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CONNECTION_DATA * psConnection)
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{
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PVRSRV_BRIDGE_IN_DEVMEMINTEXPORTCTX *psDevmemIntExportCtxIN =
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(PVRSRV_BRIDGE_IN_DEVMEMINTEXPORTCTX *) IMG_OFFSET_ADDR(psDevmemIntExportCtxIN_UI8, 0);
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PVRSRV_BRIDGE_OUT_DEVMEMINTEXPORTCTX *psDevmemIntExportCtxOUT =
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(PVRSRV_BRIDGE_OUT_DEVMEMINTEXPORTCTX *) IMG_OFFSET_ADDR(psDevmemIntExportCtxOUT_UI8,
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0);
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IMG_HANDLE hContext = psDevmemIntExportCtxIN->hContext;
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DEVMEMINT_CTX *psContextInt = NULL;
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IMG_HANDLE hPMR = psDevmemIntExportCtxIN->hPMR;
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PMR *psPMRInt = NULL;
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DEVMEMINT_CTX_EXPORT *psContextExportInt = 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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psDevmemIntExportCtxOUT->eError =
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PVRSRVLookupHandleUnlocked(psConnection->psHandleBase,
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(void **)&psContextInt,
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hContext, PVRSRV_HANDLE_TYPE_DEVMEMINT_CTX, IMG_TRUE);
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if (unlikely(psDevmemIntExportCtxOUT->eError != PVRSRV_OK))
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{
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UnlockHandle(psConnection->psHandleBase);
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goto DevmemIntExportCtx_exit;
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}
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/* Look up the address from the handle */
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psDevmemIntExportCtxOUT->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(psDevmemIntExportCtxOUT->eError != PVRSRV_OK))
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{
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UnlockHandle(psConnection->psHandleBase);
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goto DevmemIntExportCtx_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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psDevmemIntExportCtxOUT->eError =
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DevmemIntExportCtx(psContextInt, psPMRInt, &psContextExportInt);
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/* Exit early if bridged call fails */
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if (unlikely(psDevmemIntExportCtxOUT->eError != PVRSRV_OK))
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{
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goto DevmemIntExportCtx_exit;
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}
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/* Lock over handle creation. */
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LockHandle(psConnection->psHandleBase);
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psDevmemIntExportCtxOUT->eError = PVRSRVAllocHandleUnlocked(psConnection->psHandleBase,
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&psDevmemIntExportCtxOUT->
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hContextExport,
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(void *)psContextExportInt,
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PVRSRV_HANDLE_TYPE_DEVMEMINT_CTX_EXPORT,
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PVRSRV_HANDLE_ALLOC_FLAG_NONE,
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(PFN_HANDLE_RELEASE) &
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_DevmemIntExportCtxpsContextExportIntRelease);
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if (unlikely(psDevmemIntExportCtxOUT->eError != PVRSRV_OK))
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{
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UnlockHandle(psConnection->psHandleBase);
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goto DevmemIntExportCtx_exit;
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}
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/* Release now we have created handles. */
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UnlockHandle(psConnection->psHandleBase);
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DevmemIntExportCtx_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 (psContextInt)
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{
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PVRSRVReleaseHandleUnlocked(psConnection->psHandleBase,
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hContext, PVRSRV_HANDLE_TYPE_DEVMEMINT_CTX);
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}
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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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if (psDevmemIntExportCtxOUT->eError != PVRSRV_OK)
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{
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if (psContextExportInt)
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{
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LockHandle(KERNEL_HANDLE_BASE);
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DevmemIntUnexportCtx(psContextExportInt);
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UnlockHandle(KERNEL_HANDLE_BASE);
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}
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}
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return 0;
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}
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static IMG_INT
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PVRSRVBridgeDevmemIntUnexportCtx(IMG_UINT32 ui32DispatchTableEntry,
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IMG_UINT8 * psDevmemIntUnexportCtxIN_UI8,
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IMG_UINT8 * psDevmemIntUnexportCtxOUT_UI8,
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CONNECTION_DATA * psConnection)
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{
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PVRSRV_BRIDGE_IN_DEVMEMINTUNEXPORTCTX *psDevmemIntUnexportCtxIN =
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(PVRSRV_BRIDGE_IN_DEVMEMINTUNEXPORTCTX *) IMG_OFFSET_ADDR(psDevmemIntUnexportCtxIN_UI8,
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0);
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PVRSRV_BRIDGE_OUT_DEVMEMINTUNEXPORTCTX *psDevmemIntUnexportCtxOUT =
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(PVRSRV_BRIDGE_OUT_DEVMEMINTUNEXPORTCTX *)
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IMG_OFFSET_ADDR(psDevmemIntUnexportCtxOUT_UI8, 0);
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/* Lock over handle destruction. */
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LockHandle(psConnection->psHandleBase);
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psDevmemIntUnexportCtxOUT->eError =
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PVRSRVDestroyHandleStagedUnlocked(psConnection->psHandleBase,
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(IMG_HANDLE) psDevmemIntUnexportCtxIN->hContextExport,
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PVRSRV_HANDLE_TYPE_DEVMEMINT_CTX_EXPORT);
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if (unlikely((psDevmemIntUnexportCtxOUT->eError != PVRSRV_OK) &&
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(psDevmemIntUnexportCtxOUT->eError != PVRSRV_ERROR_KERNEL_CCB_FULL) &&
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(psDevmemIntUnexportCtxOUT->eError != PVRSRV_ERROR_RETRY)))
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{
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PVR_DPF((PVR_DBG_ERROR,
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"%s: %s",
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__func__, PVRSRVGetErrorString(psDevmemIntUnexportCtxOUT->eError)));
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UnlockHandle(psConnection->psHandleBase);
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goto DevmemIntUnexportCtx_exit;
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}
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/* Release now we have destroyed handles. */
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UnlockHandle(psConnection->psHandleBase);
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DevmemIntUnexportCtx_exit:
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return 0;
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}
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static PVRSRV_ERROR _DevmemIntAcquireRemoteCtxpsContextIntRelease(void *pvData)
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{
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PVRSRV_ERROR eError;
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eError = DevmemIntCtxDestroy((DEVMEMINT_CTX *) pvData);
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return eError;
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}
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static IMG_INT
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PVRSRVBridgeDevmemIntAcquireRemoteCtx(IMG_UINT32 ui32DispatchTableEntry,
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IMG_UINT8 * psDevmemIntAcquireRemoteCtxIN_UI8,
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IMG_UINT8 * psDevmemIntAcquireRemoteCtxOUT_UI8,
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CONNECTION_DATA * psConnection)
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{
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PVRSRV_BRIDGE_IN_DEVMEMINTACQUIREREMOTECTX *psDevmemIntAcquireRemoteCtxIN =
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(PVRSRV_BRIDGE_IN_DEVMEMINTACQUIREREMOTECTX *)
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IMG_OFFSET_ADDR(psDevmemIntAcquireRemoteCtxIN_UI8, 0);
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PVRSRV_BRIDGE_OUT_DEVMEMINTACQUIREREMOTECTX *psDevmemIntAcquireRemoteCtxOUT =
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(PVRSRV_BRIDGE_OUT_DEVMEMINTACQUIREREMOTECTX *)
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IMG_OFFSET_ADDR(psDevmemIntAcquireRemoteCtxOUT_UI8, 0);
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IMG_HANDLE hPMR = psDevmemIntAcquireRemoteCtxIN->hPMR;
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PMR *psPMRInt = NULL;
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DEVMEMINT_CTX *psContextInt = NULL;
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IMG_HANDLE hPrivDataInt = NULL;
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psDevmemIntAcquireRemoteCtxOUT->hContext = 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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psDevmemIntAcquireRemoteCtxOUT->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(psDevmemIntAcquireRemoteCtxOUT->eError != PVRSRV_OK))
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{
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UnlockHandle(psConnection->psHandleBase);
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goto DevmemIntAcquireRemoteCtx_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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psDevmemIntAcquireRemoteCtxOUT->eError =
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DevmemIntAcquireRemoteCtx(psPMRInt, &psContextInt, &hPrivDataInt);
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/* Exit early if bridged call fails */
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if (unlikely(psDevmemIntAcquireRemoteCtxOUT->eError != PVRSRV_OK))
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{
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goto DevmemIntAcquireRemoteCtx_exit;
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}
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/* Lock over handle creation. */
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LockHandle(psConnection->psHandleBase);
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psDevmemIntAcquireRemoteCtxOUT->eError =
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PVRSRVAllocHandleUnlocked(psConnection->psHandleBase,
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&psDevmemIntAcquireRemoteCtxOUT->hContext,
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(void *)psContextInt, PVRSRV_HANDLE_TYPE_DEVMEMINT_CTX,
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PVRSRV_HANDLE_ALLOC_FLAG_NONE,
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(PFN_HANDLE_RELEASE) &
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_DevmemIntAcquireRemoteCtxpsContextIntRelease);
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if (unlikely(psDevmemIntAcquireRemoteCtxOUT->eError != PVRSRV_OK))
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{
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UnlockHandle(psConnection->psHandleBase);
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goto DevmemIntAcquireRemoteCtx_exit;
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}
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psDevmemIntAcquireRemoteCtxOUT->eError =
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PVRSRVAllocSubHandleUnlocked(psConnection->psHandleBase,
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&psDevmemIntAcquireRemoteCtxOUT->hPrivData,
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(void *)hPrivDataInt, PVRSRV_HANDLE_TYPE_DEV_PRIV_DATA,
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PVRSRV_HANDLE_ALLOC_FLAG_NONE,
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psDevmemIntAcquireRemoteCtxOUT->hContext);
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if (unlikely(psDevmemIntAcquireRemoteCtxOUT->eError != PVRSRV_OK))
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{
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UnlockHandle(psConnection->psHandleBase);
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goto DevmemIntAcquireRemoteCtx_exit;
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}
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/* Release now we have created handles. */
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UnlockHandle(psConnection->psHandleBase);
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DevmemIntAcquireRemoteCtx_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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if (psDevmemIntAcquireRemoteCtxOUT->eError != PVRSRV_OK)
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{
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if (psDevmemIntAcquireRemoteCtxOUT->hContext)
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{
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PVRSRV_ERROR eError;
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/* Lock over handle creation cleanup. */
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LockHandle(psConnection->psHandleBase);
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eError = PVRSRVDestroyHandleUnlocked(psConnection->psHandleBase,
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(IMG_HANDLE)
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psDevmemIntAcquireRemoteCtxOUT->
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hContext,
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PVRSRV_HANDLE_TYPE_DEVMEMINT_CTX);
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if (unlikely((eError != PVRSRV_OK) && (eError != PVRSRV_ERROR_RETRY)))
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{
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PVR_DPF((PVR_DBG_ERROR,
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"%s: %s", __func__, PVRSRVGetErrorString(eError)));
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}
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/* Releasing the handle should free/destroy/release the resource.
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* This should never fail... */
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PVR_ASSERT((eError == PVRSRV_OK) || (eError == PVRSRV_ERROR_RETRY));
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/* Avoid freeing/destroying/releasing the resource a second time below */
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psContextInt = NULL;
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/* Release now we have cleaned up creation handles. */
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UnlockHandle(psConnection->psHandleBase);
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}
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if (psContextInt)
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{
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DevmemIntCtxDestroy(psContextInt);
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}
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}
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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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#endif /* EXCLUDE_CMM_BRIDGE */
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#if !defined(EXCLUDE_CMM_BRIDGE)
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PVRSRV_ERROR InitCMMBridge(void);
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void DeinitCMMBridge(void);
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/*
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* Register all CMM functions with services
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*/
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PVRSRV_ERROR InitCMMBridge(void)
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{
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SetDispatchTableEntry(PVRSRV_BRIDGE_CMM, PVRSRV_BRIDGE_CMM_DEVMEMINTEXPORTCTX,
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PVRSRVBridgeDevmemIntExportCtx, NULL);
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SetDispatchTableEntry(PVRSRV_BRIDGE_CMM, PVRSRV_BRIDGE_CMM_DEVMEMINTUNEXPORTCTX,
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PVRSRVBridgeDevmemIntUnexportCtx, NULL);
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SetDispatchTableEntry(PVRSRV_BRIDGE_CMM, PVRSRV_BRIDGE_CMM_DEVMEMINTACQUIREREMOTECTX,
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PVRSRVBridgeDevmemIntAcquireRemoteCtx, NULL);
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return PVRSRV_OK;
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}
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/*
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* Unregister all cmm functions with services
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*/
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void DeinitCMMBridge(void)
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{
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UnsetDispatchTableEntry(PVRSRV_BRIDGE_CMM, PVRSRV_BRIDGE_CMM_DEVMEMINTEXPORTCTX);
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UnsetDispatchTableEntry(PVRSRV_BRIDGE_CMM, PVRSRV_BRIDGE_CMM_DEVMEMINTUNEXPORTCTX);
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UnsetDispatchTableEntry(PVRSRV_BRIDGE_CMM, PVRSRV_BRIDGE_CMM_DEVMEMINTACQUIREREMOTECTX);
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}
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#else /* EXCLUDE_CMM_BRIDGE */
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/* This bridge is conditional on EXCLUDE_CMM_BRIDGE - when defined,
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* do not populate the dispatch table with its functions
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*/
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#define InitCMMBridge() \
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PVRSRV_OK
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#define DeinitCMMBridge()
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#endif /* EXCLUDE_CMM_BRIDGE */
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