sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2025-12-23 13:30:57 +03:00
Code Issues Packages Projects Releases Wiki Activity

[nap] Formalise the CPU sleeping API

Browse Source
This commit is contained in:
Michael Brown
2008-10-12 23:34:45 +01:00
parent 658c6dba59
commit c0835339d0
12 changed files with 138 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
src/include/gpxe/nap.h Normal file
View File

@@ -0,0 +1,54 @@
#ifndef _GPXE_NAP_H
#define _GPXE_NAP_H
/** @file
*
* CPU sleeping
*
*/
#include <gpxe/api.h>
#include <config/nap.h>
/**
* Calculate static inline CPU sleeping API function name
*
* @v _prefix Subsystem prefix
* @v _api_func API function
* @ret _subsys_func Subsystem API function
*/
#define NAP_INLINE( _subsys, _api_func ) \
SINGLE_API_INLINE ( NAP_PREFIX_ ## _subsys, _api_func )
/**
* Provide an CPU sleeping API implementation
*
* @v _prefix Subsystem prefix
* @v _api_func API function
* @v _func Implementing function
*/
#define PROVIDE_NAP( _subsys, _api_func, _func ) \
PROVIDE_SINGLE_API ( NAP_PREFIX_ ## _subsys, _api_func, _func )
/**
* Provide a static inline CPU sleeping API implementation
*
* @v _prefix Subsystem prefix
* @v _api_func API function
*/
#define PROVIDE_NAP_INLINE( _subsys, _api_func ) \
PROVIDE_SINGLE_API_INLINE ( NAP_PREFIX_ ## _subsys, _api_func )
/* Include all architecture-independent I/O API headers */
#include <gpxe/null_nap.h>
/* Include all architecture-dependent I/O API headers */
#include <bits/nap.h>
/**
* Sleep until next CPU interrupt
*
*/
void cpu_nap ( void );
#endif /* _GPXE_NAP_H */

21
src/include/gpxe/null_nap.h Normal file
View File

@@ -0,0 +1,21 @@
#ifndef _GPXE_NULL_NAP_H
#define _GPXE_NULL_NAP_H
/** @file
*
* Null CPU sleeping
*
*/
#ifdef NAP_NULL
#define NAP_PREFIX_null
#else
#define NAP_PREFIX_null __null_
#endif
static inline __always_inline void
NAP_INLINE ( null, cpu_nap ) ( void ) {
/* Do nothing */
}
#endif /* _GPXE_NULL_NAP_H */