nvidia-open-gpu-kernel-modules/kernel-open/common/inc/nvstatus.h

124 lines
4.5 KiB
C

/*
* SPDX-FileCopyrightText: Copyright (c) 2014-2019 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 SDK_NVSTATUS_H
#define SDK_NVSTATUS_H
#ifdef __cplusplus
extern "C" {
#endif
#include "nvtypes.h"
typedef NvU32 NV_STATUS;
#define NV_STATUS_CODE( name, code, string ) name = (code),
enum
{
#include "nvstatuscodes.h"
};
#undef NV_STATUS_CODE
/*!
* @def NV_STATUS_LEVEL_OK
* @see NV_STATUS_LEVEL
* @brief Success: No error or special condition
*/
#define NV_STATUS_LEVEL_OK 0
/*!
* @def NV_STATUS_LEVEL_WARN
* @see NV_STATUS_LEVEL
* @brief Success, but there is an special condition
*
* @details In general, NV_STATUS_LEVEL_WARN status codes are handled the
* same as NV_STATUS_LEVEL_OK, but are usefil to indicate that
* there is a condition that may be specially handled.
*
* Therefore, in most cases, client function should test for
* status <= NV_STATUS_LEVEL_WARN or status > NV_STATUS_LEVEL_WARN
* to determine success v. failure of a call.
*/
#define NV_STATUS_LEVEL_WARN 1
/*!
* @def NV_STATUS_LEVEL_ERR
* @see NV_STATUS_LEVEL
* @brief Unrecoverable error condition
*/
#define NV_STATUS_LEVEL_ERR 3
/*!
* @def NV_STATUS_LEVEL
* @see NV_STATUS_LEVEL_OK
* @see NV_STATUS_LEVEL_WARN
* @see NV_STATUS_LEVEL_ERR
* @brief Level of the status code
*
* @warning IMPORTANT: When comparing NV_STATUS_LEVEL(_S) against one of
* these constants, it is important to use '<=' or '>' (rather
* than '<' or '>=').
*
* For example. do:
* if (NV_STATUS_LEVEL(status) <= NV_STATUS_LEVEL_WARN)
* rather than:
* if (NV_STATUS_LEVEL(status) < NV_STATUS_LEVEL_ERR)
*
* By being consistent in this manner, it is easier to systematically
* add additional level constants. New levels are likely to lower
* (rather than raise) the severity of _ERR codes. For example,
* if we were to add NV_STATUS_LEVEL_RETRY to indicate hardware
* failures that may be recoverable (e.g. RM_ERR_TIMEOUT_RETRY
* or RM_ERR_BUSY_RETRY), it would be less severe than
* NV_STATUS_LEVEL_ERR the level to which these status codes now
* belong. Using '<=' and '>' ensures your code is not broken in
* cases like this.
*/
#define NV_STATUS_LEVEL(_S) \
((_S) == NV_OK? NV_STATUS_LEVEL_OK: \
((_S) != NV_ERR_GENERIC && (_S) & 0x00010000? NV_STATUS_LEVEL_WARN: \
NV_STATUS_LEVEL_ERR))
/*!
* @def NV_STATUS_LEVEL
* @see NV_STATUS_LEVEL_OK
* @see NV_STATUS_LEVEL_WARN
* @see NV_STATUS_LEVEL_ERR
* @brief Character representing status code level
*/
#define NV_STATUS_LEVEL_CHAR(_S) \
((_S) == NV_OK? '0': \
((_S) != NV_ERR_GENERIC && (_S) & 0x00010000? 'W': \
'E'))
// Function definitions
const char *nvstatusToString(NV_STATUS nvStatusIn);
#ifdef __cplusplus
}
#endif
#endif /* SDK_NVSTATUS_H */