/*************************************************************************/ /*!
@File
@Title          Services external synchronisation checkpoint interface header
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@Description    Defines synchronisation checkpoint structures that are visible
				internally and externally
@License        Dual MIT/GPLv2

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*/ /**************************************************************************/

#ifndef _SYNC_CHECKPOINT_EXTERNAL_
#define _SYNC_CHECKPOINT_EXTERNAL_

#ifndef _CHECKPOINT_TYPES_
#define _CHECKPOINT_TYPES_
typedef struct _SYNC_CHECKPOINT_CONTEXT *PSYNC_CHECKPOINT_CONTEXT;

typedef struct _SYNC_CHECKPOINT *PSYNC_CHECKPOINT;
#endif

/* PVRSRV_SYNC_CHECKPOINT states.
 * The OS native sync implementation should call pfnIsSignalled() to determine if a
 * PVRSRV_SYNC_CHECKPOINT has signalled (which will return an IMG_BOOL), but can set the
 * state for a PVRSRV_SYNC_CHECKPOINT (which is currently in the NOT_SIGNALLED state)
 * where that PVRSRV_SYNC_CHECKPOINT is representing a foreign sync.
 */
typedef enum
{
    PVRSRV_SYNC_CHECKPOINT_NOT_SIGNALLED = 0x000,  /*!< checkpoint has not signalled */
    PVRSRV_SYNC_CHECKPOINT_SIGNALLED     = 0x519,  /*!< checkpoint has signalled */
    PVRSRV_SYNC_CHECKPOINT_ERRORED       = 0xeff   /*!< checkpoint has been errored */
} PVRSRV_SYNC_CHECKPOINT_STATE;

#define PVRSRV_UFO_IS_SYNC_CHECKPOINT_FWADDR(fwaddr)	((fwaddr) & 0x1)
#define PVRSRV_UFO_IS_SYNC_CHECKPOINT(ufoptr)			(PVRSRV_UFO_IS_SYNC_CHECKPOINT_FWADDR((ufoptr)->puiAddrUFO.ui32Addr))

/* Maximum number of sync checkpoints the firmware supports in one fence */
#define MAX_SYNC_CHECKPOINTS_PER_FENCE 32

/*!
 * Define to be used with SyncCheckpointAlloc() to indicate a checkpoint which
 * represents a foreign sync point or collection of foreign sync points.
 */
#define SYNC_CHECKPOINT_FOREIGN_CHECKPOINT ((PVRSRV_TIMELINE) -2)

#endif /* _SYNC_CHECKPOINT_EXTERNAL_ */
