/drivers/gpu/pvr/mutex.h

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26
27#ifndef __INCLUDED_LINUX_MUTEX_H_
28#define __INCLUDED_LINUX_MUTEX_H_
29
30#include <linux/version.h>
31
32#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15))
33#include <linux/mutex.h>
34#else
35#include <asm/semaphore.h>
36#endif
37
38
39
40#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15))
41
42typedef struct mutex PVRSRV_LINUX_MUTEX;
43
44#else 
45
46
47typedef struct {
48    struct semaphore sSemaphore;
49    
50    atomic_t Count;
51}PVRSRV_LINUX_MUTEX;
52
53#endif
54
55
56extern IMG_VOID LinuxInitMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex);
57
58extern IMG_VOID LinuxLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex);
59
60extern PVRSRV_ERROR LinuxLockMutexInterruptible(PVRSRV_LINUX_MUTEX *psPVRSRVMutex);
61
62extern IMG_INT32 LinuxTryLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex);
63
64extern IMG_VOID LinuxUnLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex);
65
66extern IMG_BOOL LinuxIsLockedMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex);
67
68
69#endif 
70