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/* Copyright (c) 2013, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* @file
*
* ODP system information
*/
#ifndef ODP_API_SPEC_SYSTEM_INFO_H_
#define ODP_API_SPEC_SYSTEM_INFO_H_
#include <odp/visibility_begin.h>
#ifdef __cplusplus
extern "C" {
#endif
/** @defgroup odp_system ODP SYSTEM
* @{
*/
/**
* Default system huge page size in bytes
*
* @return Default huge page size in bytes
* @retval 0 on no huge pages
*/
uint64_t odp_sys_huge_page_size(void);
/**
* System huge page sizes in bytes
*
* Returns the number of huge page sizes supported by the system. Outputs up to
* 'num' sizes when the 'size' array pointer is not NULL. If return value is
* larger than 'num', there are more supported sizes than the function was
* allowed to output. If return value (N) is less than 'num', only sizes
* [0 ... N-1] have been written. Returned values are ordered from smallest to
* largest.
*
* @param[out] size Points to an array of huge page sizes for output
* @param num Maximum number of huge page sizes to output
*
* @return Number of supported huge page sizes
* @retval <0 on failure
*/
int odp_sys_huge_page_size_all(uint64_t size[], int num);
/**
* Page size in bytes
*
* @return Page size in bytes
*/
uint64_t odp_sys_page_size(void);
/**
* Cache line size in bytes
*
* @return CPU cache line size in bytes
*/
int odp_sys_cache_line_size(void);
/**
* Print system info
*
* Print out implementation defined information about the system. This
* information is intended for debugging purposes and may contain e.g.
* information about CPUs, memory and other HW configuration.
*/
void odp_sys_info_print(void);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#include <odp/visibility_end.h>
#endif
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