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Diffstat (limited to 'c/src/exec/rtems/inline/rtems/rtems/part.inl')
-rw-r--r-- | c/src/exec/rtems/inline/rtems/rtems/part.inl | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/c/src/exec/rtems/inline/rtems/rtems/part.inl b/c/src/exec/rtems/inline/rtems/rtems/part.inl new file mode 100644 index 0000000000..b29b023eb1 --- /dev/null +++ b/c/src/exec/rtems/inline/rtems/rtems/part.inl @@ -0,0 +1,199 @@ +/* part.inl + * + * This file contains the macro implementation of all inlined routines + * in the Partition Manager. + * + * COPYRIGHT (c) 1989-1997. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may in + * the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#ifndef __PARTITION_inl +#define __PARTITION_inl + +/*PAGE + * + * _Partition_Allocate_buffer + * + * DESCRIPTION: + * + * This function attempts to allocate a buffer from the_partition. + * If successful, it returns the address of the allocated buffer. + * Otherwise, it returns NULL. + */ + +RTEMS_INLINE_ROUTINE void *_Partition_Allocate_buffer ( + Partition_Control *the_partition +) +{ + return _Chain_Get( &the_partition->Memory ); +} + +/*PAGE + * + * _Partition_Free_buffer + * + * DESCRIPTION: + * + * This routine frees the_buffer to the_partition. + */ + +RTEMS_INLINE_ROUTINE void _Partition_Free_buffer ( + Partition_Control *the_partition, + Chain_Node *the_buffer +) +{ + _Chain_Append( &the_partition->Memory, the_buffer ); +} + +/*PAGE + * + * _Partition_Is_buffer_on_boundary + * + * DESCRIPTION: + * + * This function returns TRUE if the_buffer is on a valid buffer + * boundary for the_partition, and FALSE otherwise. + */ + +RTEMS_INLINE_ROUTINE boolean _Partition_Is_buffer_on_boundary ( + void *the_buffer, + Partition_Control *the_partition +) +{ + unsigned32 offset; + + offset = (unsigned32) _Addresses_Subtract( + the_buffer, + the_partition->starting_address + ); + + return ((offset % the_partition->buffer_size) == 0); +} + +/*PAGE + * + * _Partition_Is_buffer_valid + * + * DESCRIPTION: + * + * This function returns TRUE if the_buffer is a valid buffer from + * the_partition, otherwise FALSE is returned. + */ + +RTEMS_INLINE_ROUTINE boolean _Partition_Is_buffer_valid ( + Chain_Node *the_buffer, + Partition_Control *the_partition +) +{ + void *starting; + void *ending; + + starting = the_partition->starting_address; + ending = _Addresses_Add_offset( starting, the_partition->length ); + + return ( + _Addresses_Is_in_range( the_buffer, starting, ending ) && + _Partition_Is_buffer_on_boundary( the_buffer, the_partition ) + ); +} + +/*PAGE + * + * _Partition_Is_buffer_size_aligned + * + * DESCRIPTION: + * + * This function returns TRUE if the use of the specified buffer_size + * will result in the allocation of buffers whose first byte is + * properly aligned, and FALSE otherwise. + */ + +RTEMS_INLINE_ROUTINE boolean _Partition_Is_buffer_size_aligned ( + unsigned32 buffer_size +) +{ + return ((buffer_size % CPU_PARTITION_ALIGNMENT) == 0); +} + +/*PAGE + * + * _Partition_Allocate + * + * DESCRIPTION: + * + * This function allocates a partition control block from + * the inactive chain of free partition control blocks. + */ + +RTEMS_INLINE_ROUTINE Partition_Control *_Partition_Allocate ( void ) +{ + return (Partition_Control *) _Objects_Allocate( &_Partition_Information ); +} + +/*PAGE + * + * _Partition_Free + * + * DESCRIPTION: + * + * This routine frees a partition control block to the + * inactive chain of free partition control blocks. + */ + +RTEMS_INLINE_ROUTINE void _Partition_Free ( + Partition_Control *the_partition +) +{ + _Objects_Free( &_Partition_Information, &the_partition->Object ); +} + +/*PAGE + * + * _Partition_Get + * + * DESCRIPTION: + * + * This function maps partition IDs to partition control blocks. + * If ID corresponds to a local partition, then it returns + * the_partition control pointer which maps to ID and location + * is set to OBJECTS_LOCAL. If the partition ID is global and + * resides on a remote node, then location is set to OBJECTS_REMOTE, + * and the_partition is undefined. Otherwise, location is set + * to OBJECTS_ERROR and the_partition is undefined. + */ + +RTEMS_INLINE_ROUTINE Partition_Control *_Partition_Get ( + Objects_Id id, + Objects_Locations *location +) +{ + return (Partition_Control *) + _Objects_Get( &_Partition_Information, id, location ); +} + +/*PAGE + * + * _Partition_Is_null + * + * DESCRIPTION: + * + * This function returns TRUE if the_partition is NULL + * and FALSE otherwise. + */ + +RTEMS_INLINE_ROUTINE boolean _Partition_Is_null ( + Partition_Control *the_partition +) +{ + return ( the_partition == NULL ); +} + +#endif +/* end of include file */ |