OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [rtems/] [inline/] [rtems/] [rtems/] [part.inl] - Blame information for rev 593

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 30 unneback 
/*  part.inl
2 
 *
3 
 *  This file contains the macro implementation of all inlined routines
4 
 *  in the Partition Manager.
5 
 *
6 
 *  COPYRIGHT (c) 1989-1999.
7 
 *  On-Line Applications Research Corporation (OAR).
8 
 *
9 
 *  The license and distribution terms for this file may be
10 
 *  found in the file LICENSE in this distribution or at
11 
 *  http://www.OARcorp.com/rtems/license.html.
12 
 *
13 
 *  $Id: part.inl,v 1.2 2001-09-27 11:59:18 chris Exp $
14 
 */
15 
 
16 
#ifndef __PARTITION_inl
17 
#define __PARTITION_inl
18 
 
19 
/*PAGE
20 
 *
21 
 *  _Partition_Allocate_buffer
22 
 *
23 
 *  DESCRIPTION:
24 
 *
25 
 *  This function attempts to allocate a buffer from the_partition.
26 
 *  If successful, it returns the address of the allocated buffer.
27 
 *  Otherwise, it returns NULL.
28 
 */
29 
 
30 
RTEMS_INLINE_ROUTINE void *_Partition_Allocate_buffer (
31 
   Partition_Control *the_partition
32 
)
33 
{
34 
  return _Chain_Get( &the_partition->Memory );
35 
}
36 
 
37 
/*PAGE
38 
 *
39 
 *  _Partition_Free_buffer
40 
 *
41 
 *  DESCRIPTION:
42 
 *
43 
 *  This routine frees the_buffer to the_partition.
44 
 */
45 
 
46 
RTEMS_INLINE_ROUTINE void _Partition_Free_buffer (
47 
  Partition_Control *the_partition,
48 
  Chain_Node        *the_buffer
49 
)
50 
{
51 
  _Chain_Append( &the_partition->Memory, the_buffer );
52 
}
53 
 
54 
/*PAGE
55 
 *
56 
 *  _Partition_Is_buffer_on_boundary
57 
 *
58 
 *  DESCRIPTION:
59 
 *
60 
 *  This function returns TRUE if the_buffer is on a valid buffer
61 
 *  boundary for the_partition, and FALSE otherwise.
62 
 */
63 
 
64 
RTEMS_INLINE_ROUTINE boolean _Partition_Is_buffer_on_boundary (
65 
  void              *the_buffer,
66 
  Partition_Control *the_partition
67 
)
68 
{
69 
  unsigned32   offset;
70 
 
71 
  offset = (unsigned32) _Addresses_Subtract(
72 
    the_buffer,
73 
    the_partition->starting_address
74 
  );
75 
 
76 
  return ((offset % the_partition->buffer_size) == 0);
77 
}
78 
 
79 
/*PAGE
80 
 *
81 
 *  _Partition_Is_buffer_valid
82 
 *
83 
 *  DESCRIPTION:
84 
 *
85 
 *  This function returns TRUE if the_buffer is a valid buffer from
86 
 *  the_partition, otherwise FALSE is returned.
87 
 */
88 
 
89 
RTEMS_INLINE_ROUTINE boolean _Partition_Is_buffer_valid (
90 
   Chain_Node        *the_buffer,
91 
   Partition_Control *the_partition
92 
)
93 
{
94 
  void *starting;
95 
  void *ending;
96 
 
97 
  starting = the_partition->starting_address;
98 
  ending   = _Addresses_Add_offset( starting, the_partition->length );
99 
 
100 
  return (
101 
    _Addresses_Is_in_range( the_buffer, starting, ending ) &&
102 
    _Partition_Is_buffer_on_boundary( the_buffer, the_partition )
103 
  );
104 
}
105 
 
106 
/*PAGE
107 
 *
108 
 *  _Partition_Is_buffer_size_aligned
109 
 *
110 
 *  DESCRIPTION:
111 
 *
112 
 *  This function returns TRUE if the use of the specified buffer_size
113 
 *  will result in the allocation of buffers whose first byte is
114 
 *  properly aligned, and FALSE otherwise.
115 
 */
116 
 
117 
RTEMS_INLINE_ROUTINE boolean _Partition_Is_buffer_size_aligned (
118 
   unsigned32 buffer_size
119 
)
120 
{
121 
  return ((buffer_size % CPU_PARTITION_ALIGNMENT) == 0);
122 
}
123 
 
124 
/*PAGE
125 
 *
126 
 *  _Partition_Allocate
127 
 *
128 
 *  DESCRIPTION:
129 
 *
130 
 *  This function allocates a partition control block from
131 
 *  the inactive chain of free partition control blocks.
132 
 */
133 
 
134 
RTEMS_INLINE_ROUTINE Partition_Control *_Partition_Allocate ( void )
135 
{
136 
  return (Partition_Control *) _Objects_Allocate( &_Partition_Information );
137 
}
138 
 
139 
/*PAGE
140 
 *
141 
 *  _Partition_Free
142 
 *
143 
 *  DESCRIPTION:
144 
 *
145 
 *  This routine frees a partition control block to the
146 
 *  inactive chain of free partition control blocks.
147 
 */
148 
 
149 
RTEMS_INLINE_ROUTINE void _Partition_Free (
150 
   Partition_Control *the_partition
151 
)
152 
{
153 
  _Objects_Free( &_Partition_Information, &the_partition->Object );
154 
}
155 
 
156 
/*PAGE
157 
 *
158 
 *  _Partition_Get
159 
 *
160 
 *  DESCRIPTION:
161 
 *
162 
 *  This function maps partition IDs to partition control blocks.
163 
 *  If ID corresponds to a local partition, then it returns
164 
 *  the_partition control pointer which maps to ID and location
165 
 *  is set to OBJECTS_LOCAL.  If the partition ID is global and
166 
 *  resides on a remote node, then location is set to OBJECTS_REMOTE,
167 
 *  and the_partition is undefined.  Otherwise, location is set
168 
 *  to OBJECTS_ERROR and the_partition is undefined.
169 
 */
170 
 
171 
RTEMS_INLINE_ROUTINE Partition_Control *_Partition_Get (
172 
  Objects_Id         id,
173 
  Objects_Locations *location
174 
)
175 
{
176 
  return (Partition_Control *)
177 
    _Objects_Get( &_Partition_Information, id, location );
178 
}
179 
 
180 
/*PAGE
181 
 *
182 
 *  _Partition_Is_null
183 
 *
184 
 *  DESCRIPTION:
185 
 *
186 
 *  This function returns TRUE if the_partition is NULL
187 
 *  and FALSE otherwise.
188 
 */
189 
 
190 
RTEMS_INLINE_ROUTINE boolean _Partition_Is_null (
191 
   Partition_Control *the_partition
192 
)
193 
{
194 
   return ( the_partition == NULL  );
195 
}
196 
 
197 
#endif
198 
/* end of include file */

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.