drivers/misc/mediatek/gpu/gpu_rgx/m1.9ED4917962/include/pvrsrv_sync_km.h

/*************************************************************************/ /*!
@File
@Title         PVR synchronization interface
@Copyright     Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@Description   Types for server side code
@License        Dual MIT/GPLv2

The contents of this file are subject to the MIT license as set out below.

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not delete the provisions above, a recipient may use your version of this file
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"MIT-COPYING".

EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
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*/ /**************************************************************************/
#ifndef PVRSRV_SYNC_KM_H
#define PVRSRV_SYNC_KM_H
#if defined (__cplusplus)
extern "C" {
#endif

/*! Implementation independent types for passing fence/timeline to Services.
 */
typedef int32_t PVRSRV_FENCE;
typedef int32_t PVRSRV_TIMELINE;

/*! Maximum length for an annotation name string for fence sync model objects.
 */
#define PVRSRV_SYNC_NAME_LENGTH 32

/*! Possible states for a PVRSRV_FENCE */
typedef enum
{
    PVRSRV_FENCE_NOT_SIGNALLED,             /*!< fence has not yet signalled (not all components have signalled) */
    PVRSRV_FENCE_SIGNALLED                  /*!< fence has signalled (all components have signalled/errored) */
} PVRSRV_FENCE_STATE;

/* Typedefs for opaque pointers to implementation-specific structures
 */
typedef void *SYNC_TIMELINE_OBJ;
typedef void *SYNC_FENCE_OBJ;

/* Macros for Kick API callers using the fence sync model
 */
#define PVRSRV_NO_CHECK_FENCE_REQUIRED      -1   /*!< used when submitted work is not fenced (eg first kick) */
#define PVRSRV_NO_UPDATE_TIMELINE_REQUIRED  -1   /*!< used when caller does not want an update fence generated */
#define PVRSRV_NO_UPDATE_FENCE_REQUIRED     NULL /*!< used when caller does not want an update fence generated */

/* Macros for Kick API callers NOT using the fence sync model
 */
#define PVRSRV_FENCE_INTERFACE_UNUSED     -1     /*!< passed in Timeline and Fence values when interface is unused */
#define PVRSRV_FENCE_INTERFACE_PTR_UNUSED NULL   /*!< passed in update fence parameter when interface is unused */


/* PVRSRV Layer internal only
 * Negative references to timelines and fences are invalid.
 */
#define PVRSRV_TIMELINE_INVALID     -1
#define PVRSRV_FENCE_INVALID        -1

#if PVRSRV_NO_UPDATE_TIMELINE_REQUIRED != PVRSRV_TIMELINE_INVALID
#error "PVRSRV_NO_UPDATE_TIMELINE_REQUIRED must equal PVRSRV_TIMELINE_INVALID"
#endif

#if PVRSRV_NO_CHECK_FENCE_REQUIRED != PVRSRV_FENCE_INVALID
#error "PVRSRV_NO_CHECK_FENCE_REQUIRED must equal PVRSRV_FENCE_INVALID"
#endif

#if PVRSRV_FENCE_INTERFACE_UNUSED != PVRSRV_FENCE_INVALID
#error "PVRSRV_FENCE_INTERFACE_UNUSED must equal PVRSRV_FENCE_INVALID"
#endif


#if defined (__cplusplus)
}
#endif
#endif	/* PVRSRV_SYNC_KM_H */