nvscisync.h

Go to the documentation of this file.

/*
 * Copyright (c) 2019-2020, NVIDIA CORPORATION. All rights reserved.
 *
 * NVIDIA Corporation and its licensors retain all intellectual property
 * and proprietary rights in and to this software, related documentation
 * and any modifications thereto.  Any use, reproduction, disclosure or
 * distribution of this software and related documentation without an express
 * license agreement from NVIDIA Corporation is strictly prohibited.
 */
#ifndef INCLUDED_NVSCISYNC_H
#define INCLUDED_NVSCISYNC_H
 
#if !defined (__cplusplus)
#include <stddef.h>
#include <stdbool.h>
#include <stdint.h>
#endif
 
#include <nvscierror.h>
#include <nvsciipc.h>
 
#if defined (__cplusplus)
extern "C"
{
#endif
 
static const uint32_t NvSciSyncMajorVersion = 2U;
 
static const uint32_t NvSciSyncMinorVersion = 0U;
 
static const int64_t NvSciSyncFenceMaxTimeout = (0x7fffffffffffffff / 1000);
 
typedef struct NvSciSyncModuleRec* NvSciSyncModule;
 
typedef struct NvSciSyncCpuWaitContextRec* NvSciSyncCpuWaitContext;
 
#if (NV_IS_SAFETY == 0)
 
#endif
 
typedef struct {
    uint64_t payload[6];
} NvSciSyncFence;
 
static const NvSciSyncFence NvSciSyncFenceInitializer = {{0U}};
 
typedef struct {
    uint64_t payload[7];
} NvSciSyncFenceIpcExportDescriptor;
 
typedef struct {
    uint64_t payload[128];
} NvSciSyncObjIpcExportDescriptor;
 
#if (NV_IS_SAFETY == 0)
 
#endif
 
typedef struct NvSciSyncObjRec* NvSciSyncObj;
 
typedef const struct NvSciSyncObjRec* NvSciSyncObjConst;
 
typedef struct NvSciSyncAttrListRec* NvSciSyncAttrList;
 
typedef enum {
    NvSciSyncAccessPerm_WaitOnly = (uint64_t)1U << 0U,
    NvSciSyncAccessPerm_SignalOnly = (uint64_t)1U << 1U,
    NvSciSyncAccessPerm_WaitSignal = NvSciSyncAccessPerm_WaitOnly | NvSciSyncAccessPerm_SignalOnly,
    NvSciSyncAccessPerm_Auto = (uint64_t)1U << 63U,
} NvSciSyncAccessPerm;
 
typedef enum {
    NvSciSyncAttrKey_LowerBound,
    NvSciSyncAttrKey_NeedCpuAccess,
    NvSciSyncAttrKey_RequiredPerm,
    NvSciSyncAttrKey_ActualPerm,
    NvSciSyncAttrKey_WaiterContextInsensitiveFenceExports,
    NvSciSyncAttrKey_WaiterRequireTimestamps,
    NvSciSyncAttrKey_UpperBound,
} NvSciSyncAttrKey;
 
typedef struct {
    NvSciSyncAttrKey attrKey;
    const void* value;
    size_t len;
} NvSciSyncAttrKeyValuePair;
 
NvSciError NvSciSyncModuleOpen(
    NvSciSyncModule* newModule);
 
void NvSciSyncModuleClose(
    NvSciSyncModule module);
 
NvSciError NvSciSyncCpuWaitContextAlloc(
    NvSciSyncModule module,
    NvSciSyncCpuWaitContext* newContext);
 
void NvSciSyncCpuWaitContextFree(
    NvSciSyncCpuWaitContext context);
 
NvSciError NvSciSyncAttrListCreate(
    NvSciSyncModule module,
    NvSciSyncAttrList* attrList);
 
void NvSciSyncAttrListFree(
    NvSciSyncAttrList attrList);
 
NvSciError NvSciSyncAttrListIsReconciled(
    NvSciSyncAttrList attrList,
    bool* isReconciled);
 
NvSciError NvSciSyncAttrListValidateReconciled(
    NvSciSyncAttrList reconciledAttrList,
    const NvSciSyncAttrList inputUnreconciledAttrListArray[],
    size_t inputUnreconciledAttrListCount,
    bool* isReconciledListValid);
 
NvSciError NvSciSyncAttrListSetAttrs(
    NvSciSyncAttrList attrList,
    const NvSciSyncAttrKeyValuePair* pairArray,
    size_t pairCount);
 
NvSciError NvSciSyncAttrListGetAttrs(
    NvSciSyncAttrList attrList,
    NvSciSyncAttrKeyValuePair* pairArray,
    size_t pairCount);
 
size_t NvSciSyncAttrListGetSlotCount(
    NvSciSyncAttrList attrList);
 
NvSciError NvSciSyncAttrListAppendUnreconciled(
    const NvSciSyncAttrList inputUnreconciledAttrListArray[],
    size_t inputUnreconciledAttrListCount,
    NvSciSyncAttrList* newUnreconciledAttrList);
 
NvSciError NvSciSyncAttrListClone(
    NvSciSyncAttrList origAttrList,
    NvSciSyncAttrList* newAttrList);
 
NvSciError NvSciSyncAttrListSlotGetAttrs(
    NvSciSyncAttrList attrList,
    size_t slotIndex,
    NvSciSyncAttrKeyValuePair* pairArray,
    size_t pairCount);
 
#if (NV_IS_SAFETY == 0)
 
#endif
 
#if (NV_IS_SAFETY == 0)
 
#else
 
#endif
 
#if (NV_IS_SAFETY == 0)
 
#endif
 
NvSciError NvSciSyncAttrListReconcile(
    const NvSciSyncAttrList inputArray[],
    size_t inputCount,
    NvSciSyncAttrList* newReconciledList,
    NvSciSyncAttrList* newConflictList);
 
#if (NV_IS_SAFETY == 0)
 
NvSciError NvSciSyncAttrListDebugDump(
    NvSciSyncAttrList attrList,
    void** buf,
    size_t* len);
#endif
 
NvSciError NvSciSyncAttrListIpcExportUnreconciled(
    const NvSciSyncAttrList unreconciledAttrListArray[],
    size_t unreconciledAttrListCount,
    NvSciIpcEndpoint ipcEndpoint,
    void** descBuf,
    size_t* descLen);
 
NvSciError NvSciSyncAttrListIpcExportReconciled(
    const NvSciSyncAttrList reconciledAttrList,
    NvSciIpcEndpoint ipcEndpoint,
    void** descBuf,
    size_t* descLen);
 
NvSciError NvSciSyncAttrListIpcImportUnreconciled(
    NvSciSyncModule module,
    NvSciIpcEndpoint ipcEndpoint,
    const void* descBuf,
    size_t descLen,
    NvSciSyncAttrList* importedUnreconciledAttrList);
 
NvSciError NvSciSyncAttrListIpcImportReconciled(
    NvSciSyncModule module,
    NvSciIpcEndpoint ipcEndpoint,
    const void* descBuf,
    size_t descLen,
    const NvSciSyncAttrList inputUnreconciledAttrListArray[],
    size_t inputUnreconciledAttrListCount,
    NvSciSyncAttrList* importedReconciledAttrList);
 
void NvSciSyncAttrListFreeDesc(
    void* descBuf);
 
void NvSciSyncFenceClear(
    NvSciSyncFence* syncFence);
 
NvSciError NvSciSyncFenceDup(
    const NvSciSyncFence* srcSyncFence,
    NvSciSyncFence* dstSyncFence);
 
NvSciError NvSciSyncObjAlloc(
    NvSciSyncAttrList reconciledList,
    NvSciSyncObj* syncObj);
 
NvSciError NvSciSyncObjDup(
    NvSciSyncObj syncObj,
    NvSciSyncObj* dupObj);
 
NvSciError NvSciSyncObjGetAttrList(
    NvSciSyncObj syncObj,
    NvSciSyncAttrList* syncAttrList);
 
void NvSciSyncObjFree(
    NvSciSyncObj syncObj);
 
NvSciError NvSciSyncObjIpcExport(
    NvSciSyncObj syncObj,
    NvSciSyncAccessPerm permissions,
    NvSciIpcEndpoint ipcEndpoint,
    NvSciSyncObjIpcExportDescriptor* desc);
 
NvSciError NvSciSyncObjIpcImport(
    NvSciIpcEndpoint ipcEndpoint,
    const NvSciSyncObjIpcExportDescriptor* desc,
    NvSciSyncAttrList inputAttrList,
    NvSciSyncAccessPerm permissions,
    int64_t timeoutUs,
    NvSciSyncObj* syncObj);
 
NvSciError NvSciSyncIpcExportFence(
    const NvSciSyncFence* syncFence,
    NvSciIpcEndpoint ipcEndpoint,
    NvSciSyncFenceIpcExportDescriptor* desc);
 
NvSciError NvSciSyncIpcImportFence(
    NvSciSyncObj syncObj,
    const NvSciSyncFenceIpcExportDescriptor* desc,
    NvSciSyncFence* syncFence);
 
NvSciError NvSciSyncObjGenerateFence(
    NvSciSyncObj syncObj,
    NvSciSyncFence* syncFence);
 
NvSciError NvSciSyncObjSignal(
    NvSciSyncObj syncObj);
 
NvSciError NvSciSyncFenceWait(
    const NvSciSyncFence* syncFence,
    NvSciSyncCpuWaitContext context,
    int64_t timeoutUs);
 
#if (NV_IS_SAFETY == 0)
 
NvSciError NvSciSyncFenceGetTimestamp(
    const NvSciSyncFence* syncFence,
    uint64_t* timestampUS);
#endif
 
/*
 * NvSciSync Utility functions
 */
 
NvSciError NvSciSyncAttrListGetAttr(
    NvSciSyncAttrList attrList,
    NvSciSyncAttrKey key,
    const void** value,
    size_t* len);
 
#if (NV_IS_SAFETY == 0)
 
#else
 
#endif
 
#if (NV_IS_SAFETY == 0)
 
#endif
 
NvSciError NvSciSyncAttrListReconcileAndObjAlloc(
    const NvSciSyncAttrList inputArray[],
    size_t inputCount,
    NvSciSyncObj* syncObj,
    NvSciSyncAttrList* newConflictList);
 
NvSciError NvSciSyncIpcExportAttrListAndObj(
    NvSciSyncObj syncObj,
    NvSciSyncAccessPerm permissions,
    NvSciIpcEndpoint ipcEndpoint,
    void** attrListAndObjDesc,
    size_t* attrListAndObjDescSize);
 
void NvSciSyncAttrListAndObjFreeDesc(
    void* attrListAndObjDescBuf);
 
NvSciError NvSciSyncIpcImportAttrListAndObj(
    NvSciSyncModule module,
    NvSciIpcEndpoint ipcEndpoint,
    const void* attrListAndObjDesc,
    size_t attrListAndObjDescSize,
    NvSciSyncAttrList const attrList[],
    size_t attrListCount,
    NvSciSyncAccessPerm minPermissions,
    int64_t timeoutUs,
    NvSciSyncObj* syncObj);
 
NvSciError NvSciSyncCheckVersionCompatibility(
    uint32_t majorVer,
    uint32_t minorVer,
    bool* isCompatible);
 
#if defined(__cplusplus)
}
#endif // __cplusplus
 
#endif // INCLUDED_NVSCISYNC_H