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- /*************************************************************************/ /*!
- @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
- 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_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 */
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