nvidia-open-gpu-kernel-modules/kernel-open/nvidia/nvlink_os.h

/*
 * SPDX-FileCopyrightText: Copyright (c) 2019 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: MIT
 *
 * 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.
 *
 * 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. 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 _NVLINK_OS_H_
#define _NVLINK_OS_H_

#ifdef __cplusplus
extern "C" {
#endif

#include "nvlink_common.h"

#define TOP_LEVEL_LOCKING_DISABLED 1 
#define PER_LINK_LOCKING_DISABLED 1 

#define NVLINK_FREE(x) nvlink_free((void *)x)

// Memory management functions
void *      nvlink_malloc(NvLength);
void        nvlink_free(void *);
void *      nvlink_memset(void *, int, NvLength);
void *      nvlink_memcpy(void *, const void *, NvLength);
int         nvlink_memcmp(const void *, const void *, NvLength);
NvU32       nvlink_memRd32(const volatile void *);
void        nvlink_memWr32(volatile void *, NvU32);
NvU64       nvlink_memRd64(const volatile void *);
void        nvlink_memWr64(volatile void *, NvU64);

// String management functions
char *      nvlink_strcpy(char *, const char *);
NvLength    nvlink_strlen(const char *);
int         nvlink_strcmp(const char *, const char *);
int         nvlink_snprintf(char *, NvLength, const char *, ...);

// Locking support functions
void *      nvlink_allocLock(void);
void        nvlink_acquireLock(void *);
NvBool      nvlink_isLockOwner(void *);
void        nvlink_releaseLock(void *);
void        nvlink_freeLock(void *);

// Miscellaneous functions
void        nvlink_assert(int expression);
void        nvlink_sleep(unsigned int ms);
void        nvlink_print(const char *, int, const char *, int, const char *, ...);
int         nvlink_is_admin(void);
NvU64       nvlink_get_platform_time(void);

// Capability functions
NvlStatus nvlink_acquire_fabric_mgmt_cap(void *osPrivate, NvU64 capDescriptor);
int nvlink_is_fabric_manager(void *osPrivate);

#define NVLINK_DBG_LEVEL_INFO       0x0
#define NVLINK_DBG_LEVEL_SETUP      0x1
#define NVLINK_DBG_LEVEL_USERERRORS 0x2
#define NVLINK_DBG_LEVEL_WARNINGS   0x3
#define NVLINK_DBG_LEVEL_ERRORS     0x4

#define NVLINK_DBG_WHERE       __FILE__, __LINE__, __FUNCTION__
#define NVLINK_DBG_INFO        NVLINK_DBG_WHERE, NVLINK_DBG_LEVEL_INFO
#define NVLINK_DBG_SETUP       NVLINK_DBG_WHERE, NVLINK_DBG_LEVEL_SETUP
#define NVLINK_DBG_USERERRORS  NVLINK_DBG_WHERE, NVLINK_DBG_LEVEL_USERERRORS
#define NVLINK_DBG_WARNINGS    NVLINK_DBG_WHERE, NVLINK_DBG_LEVEL_WARNINGS
#define NVLINK_DBG_ERRORS      NVLINK_DBG_WHERE, NVLINK_DBG_LEVEL_ERRORS

#ifdef __cplusplus
}
#endif

#endif //_NVLINK_OS_H_