diff options
Diffstat (limited to 'cpukit/score/inline/rtems/score')
-rw-r--r-- | cpukit/score/inline/rtems/score/prioritybitmap.inl | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/cpukit/score/inline/rtems/score/prioritybitmap.inl b/cpukit/score/inline/rtems/score/prioritybitmap.inl deleted file mode 100644 index 19196ceea2..0000000000 --- a/cpukit/score/inline/rtems/score/prioritybitmap.inl +++ /dev/null @@ -1,198 +0,0 @@ -/** - * @file - * - * @brief Inlined Routines in the Priority Handler Bit Map Implementation - * - * This file contains the static inline implementation of all inlined - * routines in the Priority Handler bit map implementation - */ - -/* - * COPYRIGHT (c) 1989-2010. - * On-Line Applications Research Corporation (OAR). - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.com/license/LICENSE. - */ - -#ifndef _RTEMS_SCORE_PRIORITYBITMAP_H -# error "Never use <rtems/score/prioritybitmap.inl> directly; include <rtems/score/prioritybitmap.h> instead." -#endif - -#ifndef _RTEMS_SCORE_PRIORITYBITMAP_INL -#define _RTEMS_SCORE_PRIORITYBITMAP_INL - -/** - * @addtogroup ScorePriority - */ -/**@{**/ - -#include <rtems/score/bitfield.h> - -/** - * This function returns the major portion of the_priority. - */ - -RTEMS_INLINE_ROUTINE Priority_bit_map_Control _Priority_Major ( - Priority_Control the_priority -) -{ - return (Priority_bit_map_Control)( the_priority / 16 ); -} - -/** - * This function returns the minor portion of the_priority. - */ - -RTEMS_INLINE_ROUTINE Priority_bit_map_Control _Priority_Minor ( - Priority_Control the_priority -) -{ - return (Priority_bit_map_Control)( the_priority % 16 ); -} - -#if ( CPU_USE_GENERIC_BITFIELD_CODE == TRUE ) - -/** - * This function returns the mask associated with the major or minor - * number passed to it. - */ - -RTEMS_INLINE_ROUTINE Priority_bit_map_Control _Priority_Mask ( - uint32_t bit_number -) -{ - return (Priority_bit_map_Control)(0x8000u >> bit_number); -} - -/** - * This function returns the mask bit inverted. - */ - -RTEMS_INLINE_ROUTINE Priority_bit_map_Control _Priority_Mask_invert ( - uint32_t mask -) -{ - return (Priority_bit_map_Control)(~mask); -} - - -/** - * This function translates the bit numbers returned by the bit scan - * of a priority bit field into something suitable for use as - * a major or minor component of a priority. - */ - -RTEMS_INLINE_ROUTINE uint32_t _Priority_Bits_index ( - uint32_t bit_number -) -{ - return bit_number; -} - -#endif - -/** - * Priority Queue implemented by bit map - */ - -/** - * This is the minor bit map. - */ -extern Priority_bit_map_Control _Priority_Bit_map[16] CPU_STRUCTURE_ALIGNMENT; - -/** - * This routine performs the initialization necessary for this handler. - */ - -RTEMS_INLINE_ROUTINE void _Priority_bit_map_Handler_initialization( void ) -{ - int index; - - _Priority_Major_bit_map = 0; - for ( index=0 ; index <16 ; index++ ) - _Priority_Bit_map[ index ] = 0; -} - -/** - * This routine uses the_priority_map to update the priority - * bit maps to indicate that a thread has been readied. - */ - -RTEMS_INLINE_ROUTINE void _Priority_bit_map_Add ( - Priority_bit_map_Information *the_priority_map -) -{ - *the_priority_map->minor |= the_priority_map->ready_minor; - _Priority_Major_bit_map |= the_priority_map->ready_major; -} - -/** - * This routine uses the_priority_map to update the priority - * bit maps to indicate that a thread has been removed from the - * ready state. - */ - -RTEMS_INLINE_ROUTINE void _Priority_bit_map_Remove ( - Priority_bit_map_Information *the_priority_map -) -{ - *the_priority_map->minor &= the_priority_map->block_minor; - if ( *the_priority_map->minor == 0 ) - _Priority_Major_bit_map &= the_priority_map->block_major; -} - -/** - * This function returns the priority of the highest priority - * ready thread. - */ - -RTEMS_INLINE_ROUTINE Priority_Control _Priority_bit_map_Get_highest( void ) -{ - Priority_bit_map_Control minor; - Priority_bit_map_Control major; - - _Bitfield_Find_first_bit( _Priority_Major_bit_map, major ); - _Bitfield_Find_first_bit( _Priority_Bit_map[major], minor ); - - return (_Priority_Bits_index( major ) << 4) + - _Priority_Bits_index( minor ); -} - -/** - * This routine initializes the_priority_map so that it - * contains the information necessary to manage a thread - * at new_priority. - */ - -RTEMS_INLINE_ROUTINE void _Priority_bit_map_Initialize_information( - Priority_bit_map_Information *the_priority_map, - Priority_Control new_priority -) -{ - Priority_bit_map_Control major; - Priority_bit_map_Control minor; - Priority_bit_map_Control mask; - - major = _Priority_Major( new_priority ); - minor = _Priority_Minor( new_priority ); - - the_priority_map->minor = - &_Priority_Bit_map[ _Priority_Bits_index(major) ]; - - mask = _Priority_Mask( major ); - the_priority_map->ready_major = mask; - /* Add _Priority_Mask_invert to non-generic bitfield then change this code. */ - the_priority_map->block_major = (Priority_bit_map_Control)(~((uint32_t)mask)); - - mask = _Priority_Mask( minor ); - the_priority_map->ready_minor = mask; - /* Add _Priority_Mask_invert to non-generic bitfield then change this code. */ - the_priority_map->block_minor = (Priority_bit_map_Control)(~((uint32_t)mask)); -} - -/** @} */ - -#endif -/* end of include file */ |