| /*************************************************************************/ /*! |
| @File lock_types.h |
| @Title Locking types |
| @Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved |
| @Description Locking specific enums, defines and structures |
| @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 |
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| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ /**************************************************************************/ |
| |
| #ifndef LOCK_TYPES_H |
| #define LOCK_TYPES_H |
| |
| /* In Linux kernel mode we are using the kernel mutex implementation directly |
| * with macros. This allows us to use the kernel lockdep feature for lock |
| * debugging. */ |
| #if defined(LINUX) && defined(__KERNEL__) |
| |
| #include <linux/types.h> |
| #include <linux/mutex.h> |
| /* The mutex is defined as a pointer to be compatible with the other code. This |
| * isn't ideal and usually you wouldn't do that in kernel code. */ |
| typedef struct mutex *POS_LOCK; |
| typedef struct rw_semaphore *POSWR_LOCK; |
| typedef spinlock_t *POS_SPINLOCK; |
| typedef atomic_t ATOMIC_T; |
| |
| #else /* defined(LINUX) && defined(__KERNEL__) */ |
| #include "img_types.h" /* needed for IMG_INT */ |
| typedef struct _OS_LOCK_ *POS_LOCK; |
| |
| #if defined(LINUX) || defined(__QNXNTO__) || defined(INTEGRITY_OS) |
| typedef struct _OSWR_LOCK_ *POSWR_LOCK; |
| #else /* defined(LINUX) || defined(__QNXNTO__) || defined(INTEGRITY_OS) */ |
| typedef struct _OSWR_LOCK_ { |
| IMG_UINT32 ui32Dummy; |
| } *POSWR_LOCK; |
| #endif /* defined(LINUX) || defined(__QNXNTO__) || defined(INTEGRITY_OS) */ |
| |
| #if defined(LINUX) |
| typedef struct _OS_ATOMIC {IMG_INT32 counter;} ATOMIC_T; |
| #elif defined(__QNXNTO__) |
| typedef struct _OS_ATOMIC {IMG_INT32 counter;} ATOMIC_T; |
| #elif defined(_WIN32) |
| /* |
| * Dummy definition. WDDM doesn't use Services, but some headers |
| * still have to be shared. This is one such case. |
| */ |
| typedef struct _OS_ATOMIC {IMG_INT32 counter;} ATOMIC_T; |
| #elif defined(INTEGRITY_OS) |
| /* Only lower 32bits are used in OS ATOMIC APIs to have consistent behaviour across all OS */ |
| typedef struct _OS_ATOMIC {IMG_INT64 counter;} ATOMIC_T; |
| #else |
| #error "Please type-define an atomic lock for this environment" |
| #endif |
| |
| #endif /* defined(LINUX) && defined(__KERNEL__) */ |
| |
| #endif /* LOCK_TYPES_H */ |