diff options
author | Len Brown <len.brown@intel.com> | 2009-01-09 00:13:17 -0500 |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2009-01-09 03:30:47 -0500 |
commit | 95b482a8d31116f3f5c2a5089569393234d06385 (patch) | |
tree | f32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/acpica/utalloc.c | |
parent | 6620e0c49f577454b772fb381543d60ae53eb885 (diff) |
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/utalloc.c')
-rw-r--r-- | drivers/acpi/acpica/utalloc.c | 383 |
1 files changed, 383 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c new file mode 100644 index 000000000000..2a017b29aa41 --- /dev/null +++ b/drivers/acpi/acpica/utalloc.c | |||
@@ -0,0 +1,383 @@ | |||
1 | /****************************************************************************** | ||
2 | * | ||
3 | * Module Name: utalloc - local memory allocation routines | ||
4 | * | ||
5 | *****************************************************************************/ | ||
6 | |||
7 | /* | ||
8 | * Copyright (C) 2000 - 2008, Intel Corp. | ||
9 | * All rights reserved. | ||
10 | * | ||
11 | * Redistribution and use in source and binary forms, with or without | ||
12 | * modification, are permitted provided that the following conditions | ||
13 | * are met: | ||
14 | * 1. Redistributions of source code must retain the above copyright | ||
15 | * notice, this list of conditions, and the following disclaimer, | ||
16 | * without modification. | ||
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | ||
18 | * substantially similar to the "NO WARRANTY" disclaimer below | ||
19 | * ("Disclaimer") and any redistribution must be conditioned upon | ||
20 | * including a substantially similar Disclaimer requirement for further | ||
21 | * binary redistribution. | ||
22 | * 3. Neither the names of the above-listed copyright holders nor the names | ||
23 | * of any contributors may be used to endorse or promote products derived | ||
24 | * from this software without specific prior written permission. | ||
25 | * | ||
26 | * Alternatively, this software may be distributed under the terms of the | ||
27 | * GNU General Public License ("GPL") version 2 as published by the Free | ||
28 | * Software Foundation. | ||
29 | * | ||
30 | * NO WARRANTY | ||
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | ||
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | ||
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
41 | * POSSIBILITY OF SUCH DAMAGES. | ||
42 | */ | ||
43 | |||
44 | #include <acpi/acpi.h> | ||
45 | #include <acpi/accommon.h> | ||
46 | #include <acpi/acdebug.h> | ||
47 | |||
48 | #define _COMPONENT ACPI_UTILITIES | ||
49 | ACPI_MODULE_NAME("utalloc") | ||
50 | |||
51 | /******************************************************************************* | ||
52 | * | ||
53 | * FUNCTION: acpi_ut_create_caches | ||
54 | * | ||
55 | * PARAMETERS: None | ||
56 | * | ||
57 | * RETURN: Status | ||
58 | * | ||
59 | * DESCRIPTION: Create all local caches | ||
60 | * | ||
61 | ******************************************************************************/ | ||
62 | acpi_status acpi_ut_create_caches(void) | ||
63 | { | ||
64 | acpi_status status; | ||
65 | |||
66 | /* Object Caches, for frequently used objects */ | ||
67 | |||
68 | status = | ||
69 | acpi_os_create_cache("Acpi-Namespace", | ||
70 | sizeof(struct acpi_namespace_node), | ||
71 | ACPI_MAX_NAMESPACE_CACHE_DEPTH, | ||
72 | &acpi_gbl_namespace_cache); | ||
73 | if (ACPI_FAILURE(status)) { | ||
74 | return (status); | ||
75 | } | ||
76 | |||
77 | status = | ||
78 | acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state), | ||
79 | ACPI_MAX_STATE_CACHE_DEPTH, | ||
80 | &acpi_gbl_state_cache); | ||
81 | if (ACPI_FAILURE(status)) { | ||
82 | return (status); | ||
83 | } | ||
84 | |||
85 | status = | ||
86 | acpi_os_create_cache("Acpi-Parse", | ||
87 | sizeof(struct acpi_parse_obj_common), | ||
88 | ACPI_MAX_PARSE_CACHE_DEPTH, | ||
89 | &acpi_gbl_ps_node_cache); | ||
90 | if (ACPI_FAILURE(status)) { | ||
91 | return (status); | ||
92 | } | ||
93 | |||
94 | status = | ||
95 | acpi_os_create_cache("Acpi-ParseExt", | ||
96 | sizeof(struct acpi_parse_obj_named), | ||
97 | ACPI_MAX_EXTPARSE_CACHE_DEPTH, | ||
98 | &acpi_gbl_ps_node_ext_cache); | ||
99 | if (ACPI_FAILURE(status)) { | ||
100 | return (status); | ||
101 | } | ||
102 | |||
103 | status = | ||
104 | acpi_os_create_cache("Acpi-Operand", | ||
105 | sizeof(union acpi_operand_object), | ||
106 | ACPI_MAX_OBJECT_CACHE_DEPTH, | ||
107 | &acpi_gbl_operand_cache); | ||
108 | if (ACPI_FAILURE(status)) { | ||
109 | return (status); | ||
110 | } | ||
111 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS | ||
112 | |||
113 | /* Memory allocation lists */ | ||
114 | |||
115 | status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list); | ||
116 | if (ACPI_FAILURE(status)) { | ||
117 | return (status); | ||
118 | } | ||
119 | |||
120 | status = | ||
121 | acpi_ut_create_list("Acpi-Namespace", | ||
122 | sizeof(struct acpi_namespace_node), | ||
123 | &acpi_gbl_ns_node_list); | ||
124 | if (ACPI_FAILURE(status)) { | ||
125 | return (status); | ||
126 | } | ||
127 | #endif | ||
128 | |||
129 | return (AE_OK); | ||
130 | } | ||
131 | |||
132 | /******************************************************************************* | ||
133 | * | ||
134 | * FUNCTION: acpi_ut_delete_caches | ||
135 | * | ||
136 | * PARAMETERS: None | ||
137 | * | ||
138 | * RETURN: Status | ||
139 | * | ||
140 | * DESCRIPTION: Purge and delete all local caches | ||
141 | * | ||
142 | ******************************************************************************/ | ||
143 | |||
144 | acpi_status acpi_ut_delete_caches(void) | ||
145 | { | ||
146 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS | ||
147 | char buffer[7]; | ||
148 | |||
149 | if (acpi_gbl_display_final_mem_stats) { | ||
150 | ACPI_STRCPY(buffer, "MEMORY"); | ||
151 | (void)acpi_db_display_statistics(buffer); | ||
152 | } | ||
153 | #endif | ||
154 | |||
155 | (void)acpi_os_delete_cache(acpi_gbl_namespace_cache); | ||
156 | acpi_gbl_namespace_cache = NULL; | ||
157 | |||
158 | (void)acpi_os_delete_cache(acpi_gbl_state_cache); | ||
159 | acpi_gbl_state_cache = NULL; | ||
160 | |||
161 | (void)acpi_os_delete_cache(acpi_gbl_operand_cache); | ||
162 | acpi_gbl_operand_cache = NULL; | ||
163 | |||
164 | (void)acpi_os_delete_cache(acpi_gbl_ps_node_cache); | ||
165 | acpi_gbl_ps_node_cache = NULL; | ||
166 | |||
167 | (void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache); | ||
168 | acpi_gbl_ps_node_ext_cache = NULL; | ||
169 | |||
170 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS | ||
171 | |||
172 | /* Debug only - display leftover memory allocation, if any */ | ||
173 | |||
174 | acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL); | ||
175 | |||
176 | /* Free memory lists */ | ||
177 | |||
178 | ACPI_FREE(acpi_gbl_global_list); | ||
179 | acpi_gbl_global_list = NULL; | ||
180 | |||
181 | ACPI_FREE(acpi_gbl_ns_node_list); | ||
182 | acpi_gbl_ns_node_list = NULL; | ||
183 | #endif | ||
184 | |||
185 | return (AE_OK); | ||
186 | } | ||
187 | |||
188 | /******************************************************************************* | ||
189 | * | ||
190 | * FUNCTION: acpi_ut_validate_buffer | ||
191 | * | ||
192 | * PARAMETERS: Buffer - Buffer descriptor to be validated | ||
193 | * | ||
194 | * RETURN: Status | ||
195 | * | ||
196 | * DESCRIPTION: Perform parameter validation checks on an struct acpi_buffer | ||
197 | * | ||
198 | ******************************************************************************/ | ||
199 | |||
200 | acpi_status acpi_ut_validate_buffer(struct acpi_buffer * buffer) | ||
201 | { | ||
202 | |||
203 | /* Obviously, the structure pointer must be valid */ | ||
204 | |||
205 | if (!buffer) { | ||
206 | return (AE_BAD_PARAMETER); | ||
207 | } | ||
208 | |||
209 | /* Special semantics for the length */ | ||
210 | |||
211 | if ((buffer->length == ACPI_NO_BUFFER) || | ||
212 | (buffer->length == ACPI_ALLOCATE_BUFFER) || | ||
213 | (buffer->length == ACPI_ALLOCATE_LOCAL_BUFFER)) { | ||
214 | return (AE_OK); | ||
215 | } | ||
216 | |||
217 | /* Length is valid, the buffer pointer must be also */ | ||
218 | |||
219 | if (!buffer->pointer) { | ||
220 | return (AE_BAD_PARAMETER); | ||
221 | } | ||
222 | |||
223 | return (AE_OK); | ||
224 | } | ||
225 | |||
226 | /******************************************************************************* | ||
227 | * | ||
228 | * FUNCTION: acpi_ut_initialize_buffer | ||
229 | * | ||
230 | * PARAMETERS: Buffer - Buffer to be validated | ||
231 | * required_length - Length needed | ||
232 | * | ||
233 | * RETURN: Status | ||
234 | * | ||
235 | * DESCRIPTION: Validate that the buffer is of the required length or | ||
236 | * allocate a new buffer. Returned buffer is always zeroed. | ||
237 | * | ||
238 | ******************************************************************************/ | ||
239 | |||
240 | acpi_status | ||
241 | acpi_ut_initialize_buffer(struct acpi_buffer * buffer, | ||
242 | acpi_size required_length) | ||
243 | { | ||
244 | acpi_size input_buffer_length; | ||
245 | |||
246 | /* Parameter validation */ | ||
247 | |||
248 | if (!buffer || !required_length) { | ||
249 | return (AE_BAD_PARAMETER); | ||
250 | } | ||
251 | |||
252 | /* | ||
253 | * Buffer->Length is used as both an input and output parameter. Get the | ||
254 | * input actual length and set the output required buffer length. | ||
255 | */ | ||
256 | input_buffer_length = buffer->length; | ||
257 | buffer->length = required_length; | ||
258 | |||
259 | /* | ||
260 | * The input buffer length contains the actual buffer length, or the type | ||
261 | * of buffer to be allocated by this routine. | ||
262 | */ | ||
263 | switch (input_buffer_length) { | ||
264 | case ACPI_NO_BUFFER: | ||
265 | |||
266 | /* Return the exception (and the required buffer length) */ | ||
267 | |||
268 | return (AE_BUFFER_OVERFLOW); | ||
269 | |||
270 | case ACPI_ALLOCATE_BUFFER: | ||
271 | |||
272 | /* Allocate a new buffer */ | ||
273 | |||
274 | buffer->pointer = acpi_os_allocate(required_length); | ||
275 | break; | ||
276 | |||
277 | case ACPI_ALLOCATE_LOCAL_BUFFER: | ||
278 | |||
279 | /* Allocate a new buffer with local interface to allow tracking */ | ||
280 | |||
281 | buffer->pointer = ACPI_ALLOCATE(required_length); | ||
282 | break; | ||
283 | |||
284 | default: | ||
285 | |||
286 | /* Existing buffer: Validate the size of the buffer */ | ||
287 | |||
288 | if (input_buffer_length < required_length) { | ||
289 | return (AE_BUFFER_OVERFLOW); | ||
290 | } | ||
291 | break; | ||
292 | } | ||
293 | |||
294 | /* Validate allocation from above or input buffer pointer */ | ||
295 | |||
296 | if (!buffer->pointer) { | ||
297 | return (AE_NO_MEMORY); | ||
298 | } | ||
299 | |||
300 | /* Have a valid buffer, clear it */ | ||
301 | |||
302 | ACPI_MEMSET(buffer->pointer, 0, required_length); | ||
303 | return (AE_OK); | ||
304 | } | ||
305 | |||
306 | #ifdef NOT_USED_BY_LINUX | ||
307 | /******************************************************************************* | ||
308 | * | ||
309 | * FUNCTION: acpi_ut_allocate | ||
310 | * | ||
311 | * PARAMETERS: Size - Size of the allocation | ||
312 | * Component - Component type of caller | ||
313 | * Module - Source file name of caller | ||
314 | * Line - Line number of caller | ||
315 | * | ||
316 | * RETURN: Address of the allocated memory on success, NULL on failure. | ||
317 | * | ||
318 | * DESCRIPTION: Subsystem equivalent of malloc. | ||
319 | * | ||
320 | ******************************************************************************/ | ||
321 | |||
322 | void *acpi_ut_allocate(acpi_size size, | ||
323 | u32 component, const char *module, u32 line) | ||
324 | { | ||
325 | void *allocation; | ||
326 | |||
327 | ACPI_FUNCTION_TRACE_U32(ut_allocate, size); | ||
328 | |||
329 | /* Check for an inadvertent size of zero bytes */ | ||
330 | |||
331 | if (!size) { | ||
332 | ACPI_WARNING((module, line, | ||
333 | "Attempt to allocate zero bytes, allocating 1 byte")); | ||
334 | size = 1; | ||
335 | } | ||
336 | |||
337 | allocation = acpi_os_allocate(size); | ||
338 | if (!allocation) { | ||
339 | |||
340 | /* Report allocation error */ | ||
341 | |||
342 | ACPI_WARNING((module, line, | ||
343 | "Could not allocate size %X", (u32) size)); | ||
344 | |||
345 | return_PTR(NULL); | ||
346 | } | ||
347 | |||
348 | return_PTR(allocation); | ||
349 | } | ||
350 | |||
351 | /******************************************************************************* | ||
352 | * | ||
353 | * FUNCTION: acpi_ut_allocate_zeroed | ||
354 | * | ||
355 | * PARAMETERS: Size - Size of the allocation | ||
356 | * Component - Component type of caller | ||
357 | * Module - Source file name of caller | ||
358 | * Line - Line number of caller | ||
359 | * | ||
360 | * RETURN: Address of the allocated memory on success, NULL on failure. | ||
361 | * | ||
362 | * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory. | ||
363 | * | ||
364 | ******************************************************************************/ | ||
365 | |||
366 | void *acpi_ut_allocate_zeroed(acpi_size size, | ||
367 | u32 component, const char *module, u32 line) | ||
368 | { | ||
369 | void *allocation; | ||
370 | |||
371 | ACPI_FUNCTION_ENTRY(); | ||
372 | |||
373 | allocation = acpi_ut_allocate(size, component, module, line); | ||
374 | if (allocation) { | ||
375 | |||
376 | /* Clear the memory block */ | ||
377 | |||
378 | ACPI_MEMSET(allocation, 0, size); | ||
379 | } | ||
380 | |||
381 | return (allocation); | ||
382 | } | ||
383 | #endif | ||