diff options
Diffstat (limited to 'pvr-source/services4/srvkm/env/linux/lock.h')
-rw-r--r-- | pvr-source/services4/srvkm/env/linux/lock.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/pvr-source/services4/srvkm/env/linux/lock.h b/pvr-source/services4/srvkm/env/linux/lock.h new file mode 100644 index 0000000..11adcaa --- /dev/null +++ b/pvr-source/services4/srvkm/env/linux/lock.h @@ -0,0 +1,56 @@ +/*************************************************************************/ /*! +@Title Main driver lock +@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved +@Description The main driver lock, held in most places in + the driver. +@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 __LOCK_H__ +#define __LOCK_H__ + +/* + * Main driver lock, used to ensure driver code is single threaded. + * There are some places where this lock must not be taken, such as + * in the mmap related deriver entry points. + */ +extern PVRSRV_LINUX_MUTEX gPVRSRVLock; + +#endif /* __LOCK_H__ */ +/***************************************************************************** + End of file (lock.h) +*****************************************************************************/ |