Attachment #10774 for bug #8171

Lines 196-206 acpi_ev_queue_notify_request(struct acpi_namespace_node * node, Link Here

(-)a/drivers/acpi/events/evmisc.c (-2 / +6 lines)
196	notify_info->notify.value = (u16) notify_value;	196	notify_info->notify.value = (u16) notify_value;
197	notify_info->notify.handler_obj = handler_obj;	197	notify_info->notify.handler_obj = handler_obj;
198		198
199	acpi_ex_relinquish_interpreter();	199	acpi_ex_exit_interpreter();
200		200
201	acpi_ev_notify_dispatch(notify_info);	201	acpi_ev_notify_dispatch(notify_info);
202		202
203	acpi_ex_reacquire_interpreter();	203	status = acpi_ex_enter_interpreter();
		204	if (ACPI_FAILURE(status)) {
		205	return_ACPI_STATUS(status);
		206	}
		207
204	}	208	}
205		209
206	if (!handler_obj) {	210	if (!handler_obj) {

Lines 291-296 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, Link Here

(-)a/drivers/acpi/events/evregion.c (-4 / +11 lines)
291	u32 bit_width, acpi_integer * value)	291	u32 bit_width, acpi_integer * value)
292	{	292	{
293	acpi_status status;	293	acpi_status status;
		294	acpi_status status2;
294	acpi_adr_space_handler handler;	295	acpi_adr_space_handler handler;
295	acpi_adr_space_setup region_setup;	296	acpi_adr_space_setup region_setup;
296	union acpi_operand_object *handler_desc;	297	union acpi_operand_object *handler_desc;
Lines 344-350 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, Link Here
344	* setup will potentially execute control methods	345	* setup will potentially execute control methods
345	* (e.g., _REG method for this region)	346	* (e.g., _REG method for this region)
346	*/	347	*/
347	acpi_ex_relinquish_interpreter();	348	acpi_ex_exit_interpreter();
348		349
349	status = region_setup(region_obj, ACPI_REGION_ACTIVATE,	350	status = region_setup(region_obj, ACPI_REGION_ACTIVATE,
350	handler_desc->address_space.context,	351	handler_desc->address_space.context,
Lines 352-358 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, Link Here
352		353
353	/* Re-enter the interpreter */	354	/* Re-enter the interpreter */
354		355
355	acpi_ex_reacquire_interpreter();	356	status2 = acpi_ex_enter_interpreter();
		357	if (ACPI_FAILURE(status2)) {
		358	return_ACPI_STATUS(status2);
		359	}
356		360
357	/* Check for failure of the Region Setup */	361	/* Check for failure of the Region Setup */
358		362
Lines 405-411 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, Link Here
405	* exit the interpreter because the handler might block -- we don't	409	* exit the interpreter because the handler might block -- we don't
406	* know what it will do, so we can't hold the lock on the intepreter.	410	* know what it will do, so we can't hold the lock on the intepreter.
407	*/	411	*/
408	acpi_ex_relinquish_interpreter();	412	acpi_ex_exit_interpreter();
409	}	413	}
410		414
411	/* Call the handler */	415	/* Call the handler */
Lines 426-432 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, Link Here
426	* We just returned from a non-default handler, we must re-enter the	430	* We just returned from a non-default handler, we must re-enter the
427	* interpreter	431	* interpreter
428	*/	432	*/
429	acpi_ex_reacquire_interpreter();	433	status2 = acpi_ex_enter_interpreter();
		434	if (ACPI_FAILURE(status2)) {
		435	return_ACPI_STATUS(status2);
		436	}
430	}	437	}
431		438
432	return_ACPI_STATUS(status);	439	return_ACPI_STATUS(status);

Lines 768-776 acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle) Link Here

(-)a/drivers/acpi/events/evxface.c (-2 / +4 lines)
768	return (AE_BAD_PARAMETER);	768	return (AE_BAD_PARAMETER);
769	}	769	}
770		770
771	/* Must lock interpreter to prevent race conditions */	771	status = acpi_ex_enter_interpreter();
		772	if (ACPI_FAILURE(status)) {
		773	return (status);
		774	}
772		775
773	acpi_ex_enter_interpreter();
774	status = acpi_ev_acquire_global_lock(timeout);	776	status = acpi_ev_acquire_global_lock(timeout);
775	acpi_ex_exit_interpreter();	777	acpi_ex_exit_interpreter();
776		778

Lines 583-589 acpi_ex_create_method(u8 * aml_start, Link Here

(-)a/drivers/acpi/executer/excreate.c (-1 / +4 lines)
583	* Get the sync_level. If method is serialized, a mutex will be	583	* Get the sync_level. If method is serialized, a mutex will be
584	* created for this method when it is parsed.	584	* created for this method when it is parsed.
585	*/	585	*/
586	if (method_flags & AML_METHOD_SERIALIZED) {	586	if (acpi_gbl_all_methods_serialized) {
		587	obj_desc->method.sync_level = 0;
		588	obj_desc->method.method_flags \|= AML_METHOD_SERIALIZED;
		589	} else if (method_flags & AML_METHOD_SERIALIZED) {
587	/*	590	/*
588	* ACPI 1.0: sync_level = 0	591	* ACPI 1.0: sync_level = 0
589	* ACPI 2.0: sync_level = sync_level in method declaration	592	* ACPI 2.0: sync_level = sync_level in method declaration

Lines 66-71 ACPI_MODULE_NAME("exsystem") Link Here

(-)a/drivers/acpi/executer/exsystem.c (-7 / +23 lines)
66	acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)	66	acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
67	{	67	{
68	acpi_status status;	68	acpi_status status;
		69	acpi_status status2;
69		70
70	ACPI_FUNCTION_TRACE(ex_system_wait_semaphore);	71	ACPI_FUNCTION_TRACE(ex_system_wait_semaphore);
71		72
Lines 78-84 acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) Link Here
78		79
79	/* We must wait, so unlock the interpreter */	80	/* We must wait, so unlock the interpreter */
80		81
81	acpi_ex_relinquish_interpreter();	82	acpi_ex_exit_interpreter();
82		83
83	status = acpi_os_wait_semaphore(semaphore, 1, timeout);	84	status = acpi_os_wait_semaphore(semaphore, 1, timeout);
84		85
Lines 88-94 acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) Link Here
88		89
89	/* Reacquire the interpreter */	90	/* Reacquire the interpreter */
90		91
91	acpi_ex_reacquire_interpreter();	92	status2 = acpi_ex_enter_interpreter();
		93	if (ACPI_FAILURE(status2)) {
		94
		95	/* Report fatal error, could not acquire interpreter */
		96
		97	return_ACPI_STATUS(status2);
		98	}
92	}	99	}
93		100
94	return_ACPI_STATUS(status);	101	return_ACPI_STATUS(status);
Lines 112-117 acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) Link Here
112	acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)	119	acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
113	{	120	{
114	acpi_status status;	121	acpi_status status;
		122	acpi_status status2;
115		123
116	ACPI_FUNCTION_TRACE(ex_system_wait_mutex);	124	ACPI_FUNCTION_TRACE(ex_system_wait_mutex);
117		125
Lines 124-130 acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout) Link Here
124		132
125	/* We must wait, so unlock the interpreter */	133	/* We must wait, so unlock the interpreter */
126		134
127	acpi_ex_relinquish_interpreter();	135	acpi_ex_exit_interpreter();
128		136
129	status = acpi_os_acquire_mutex(mutex, timeout);	137	status = acpi_os_acquire_mutex(mutex, timeout);
130		138
Lines 134-140 acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout) Link Here
134		142
135	/* Reacquire the interpreter */	143	/* Reacquire the interpreter */
136		144
137	acpi_ex_reacquire_interpreter();	145	status2 = acpi_ex_enter_interpreter();
		146	if (ACPI_FAILURE(status2)) {
		147
		148	/* Report fatal error, could not acquire interpreter */
		149
		150	return_ACPI_STATUS(status2);
		151	}
138	}	152	}
139		153
140	return_ACPI_STATUS(status);	154	return_ACPI_STATUS(status);
Lines 195-212 acpi_status acpi_ex_system_do_stall(u32 how_long) Link Here
195		209
196	acpi_status acpi_ex_system_do_suspend(acpi_integer how_long)	210	acpi_status acpi_ex_system_do_suspend(acpi_integer how_long)
197	{	211	{
		212	acpi_status status;
		213
198	ACPI_FUNCTION_ENTRY();	214	ACPI_FUNCTION_ENTRY();
199		215
200	/* Since this thread will sleep, we must release the interpreter */	216	/* Since this thread will sleep, we must release the interpreter */
201		217
202	acpi_ex_relinquish_interpreter();	218	acpi_ex_exit_interpreter();
203		219
204	acpi_os_sleep(how_long);	220	acpi_os_sleep(how_long);
205		221
206	/* And now we must get the interpreter again */	222	/* And now we must get the interpreter again */
207		223
208	acpi_ex_reacquire_interpreter();	224	status = acpi_ex_enter_interpreter();
209	return (AE_OK);	225	return (status);
210	}	226	}
211		227
212	/*******************************************************************************	228	/*******************************************************************************




 *
 * PARAMETERS:  None
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Enter the interpreter execution region.  Failure to enter
 *              the interpreter region is a fatal system error
 *              conjunction with exit_interpreter.
 *
 ******************************************************************************/

acpi_status acpi_ex_enter_interpreter(void)
{
	acpi_status status;



	status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
	if (ACPI_FAILURE(status)) {
		ACPI_ERROR((AE_INFO, "Could not acquire interpreter mutex"));
			    "Could not acquire AML Interpreter mutex"));
	}

	return_ACPI_STATUS(status);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ex_reacquire_interpreter
 *
 * PARAMETERS:  None
 *
 * RETURN:      None
 *
 * DESCRIPTION: Reacquire the interpreter execution region from within the
 *              interpreter code. Failure to enter the interpreter region is a
 *              fatal system error. Used in  conjuction with
 *              relinquish_interpreter
 *
 ******************************************************************************/

void acpi_ex_reacquire_interpreter(void)
{
	ACPI_FUNCTION_TRACE(ex_reacquire_interpreter);

	/*
	 * If the global serialized flag is set, do not release the interpreter,
	 * since it was not actually released by acpi_ex_relinquish_interpreter.
	 * This forces the interpreter to be single threaded.
	 */
	if (!acpi_gbl_all_methods_serialized) {
		acpi_ex_enter_interpreter();
	}

	return_VOID;
}

/*******************************************************************************

 *
 * RETURN:      None
 *
 * DESCRIPTION: Exit the interpreter execution region
 *
 * Cases where the interpreter is unlocked:
 *      1) Completion of the execution of a control method
 *      2) Method blocked on a Sleep() AML opcode
 *      3) Method blocked on an Acquire() AML opcode
 *      4) Method blocked on a Wait() AML opcode
 *      5) Method blocked to acquire the global lock
 *      6) Method blocked to execute a serialized control method that is
 *          already executing
 *      7) About to invoke a user-installed opregion handler
 *
 ******************************************************************************/



	status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
	if (ACPI_FAILURE(status)) {
		ACPI_ERROR((AE_INFO, "Could not release interpreter mutex"));
			    "Could not release AML Interpreter mutex"));
	}

	return_VOID;
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ex_relinquish_interpreter
 *
 * PARAMETERS:  None
 *
 * RETURN:      None
 *
 * DESCRIPTION: Exit the interpreter execution region, from within the
 *              interpreter - before attempting an operation that will possibly
 *              block the running thread.
 *
 * Cases where the interpreter is unlocked internally
 *      1) Method to be blocked on a Sleep() AML opcode
 *      2) Method to be blocked on an Acquire() AML opcode
 *      3) Method to be blocked on a Wait() AML opcode
 *      4) Method to be blocked to acquire the global lock
 *      5) Method to be blocked waiting to execute a serialized control method
 *          that is currently executing
 *      6) About to invoke a user-installed opregion handler
 *
 ******************************************************************************/

void acpi_ex_relinquish_interpreter(void)
{
	ACPI_FUNCTION_TRACE(ex_relinquish_interpreter);

	/*
	 * If the global serialized flag is set, do not release the interpreter.
	 * This forces the interpreter to be single threaded.
	 */
	if (!acpi_gbl_all_methods_serialized) {
		acpi_ex_exit_interpreter();
	}

	return_VOID;

 *
 * RETURN:      none
 *
 * DESCRIPTION: Truncate a number to 32-bits if the currently executing method
 *              belongs to a 32-bit ACPI table.
 *
 ******************************************************************************/


Lines 154-160 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info) Link Here

(-)a/drivers/acpi/namespace/nseval.c (-2 / +9 lines)
154	* Execute the method via the interpreter. The interpreter is locked	154	* Execute the method via the interpreter. The interpreter is locked
155	* here before calling into the AML parser	155	* here before calling into the AML parser
156	*/	156	*/
157	acpi_ex_enter_interpreter();	157	status = acpi_ex_enter_interpreter();
		158	if (ACPI_FAILURE(status)) {
		159	return_ACPI_STATUS(status);
		160	}
		161
158	status = acpi_ps_execute_method(info);	162	status = acpi_ps_execute_method(info);
159	acpi_ex_exit_interpreter();	163	acpi_ex_exit_interpreter();
160	} else {	164	} else {
Lines 178-184 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info) Link Here
178	* resolution, we must lock it because we could access an opregion.	182	* resolution, we must lock it because we could access an opregion.
179	* The opregion access code assumes that the interpreter is locked.	183	* The opregion access code assumes that the interpreter is locked.
180	*/	184	*/
181	acpi_ex_enter_interpreter();	185	status = acpi_ex_enter_interpreter();
		186	if (ACPI_FAILURE(status)) {
		187	return_ACPI_STATUS(status);
		188	}
182		189
183	/* Function has a strange interface */	190	/* Function has a strange interface */
184		191

Lines 214-220 acpi_ns_init_one_object(acpi_handle obj_handle, Link Here

(-)a/drivers/acpi/namespace/nsinit.c (-2 / +5 lines)
214	u32 level, void context, void *return_value)	214	u32 level, void context, void *return_value)
215	{	215	{
216	acpi_object_type type;	216	acpi_object_type type;
217	acpi_status status = AE_OK;	217	acpi_status status;
218	struct acpi_init_walk_info *info =	218	struct acpi_init_walk_info *info =
219	(struct acpi_init_walk_info *)context;	219	(struct acpi_init_walk_info *)context;
220	struct acpi_namespace_node *node =	220	struct acpi_namespace_node *node =
Lines 268-274 acpi_ns_init_one_object(acpi_handle obj_handle, Link Here
268	/*	268	/*
269	* Must lock the interpreter before executing AML code	269	* Must lock the interpreter before executing AML code
270	*/	270	*/
271	acpi_ex_enter_interpreter();	271	status = acpi_ex_enter_interpreter();
		272	if (ACPI_FAILURE(status)) {
		273	return (status);
		274	}
272		275
273	/*	276	/*
274	* Each of these types can contain executable AML code within the	277	* Each of these types can contain executable AML code within the




		     struct acpi_buffer *return_buffer)
{
	acpi_status status;
	acpi_status status2;
	struct acpi_evaluate_info *info;
	acpi_size buffer_space_needed;
	u32 i;

		 * Delete the internal return object. NOTE: Interpreter must be
		 * locked to avoid race condition.
		 */
		status2 = acpi_ex_enter_interpreter();
		if (ACPI_SUCCESS(status2)) {

			/* Remove one reference on the return object (should delete it) */

			acpi_ut_remove_reference(info->return_object);
			acpi_ex_exit_interpreter();
		}
	}

      cleanup:




/*
 * exutils - interpreter/scanner utilities
 */
acpi_status acpi_ex_enter_interpreter(void);

void acpi_ex_exit_interpreter(void);

void acpi_ex_reacquire_interpreter(void);

void acpi_ex_relinquish_interpreter(void);

void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc);

u8 acpi_ex_acquire_global_lock(u32 rule);

Return to bug 8171

Lines 170-175 acpi_evaluate_object(acpi_handle handle, Link Here

(-)a/drivers/acpi/namespace/nsxfeval.c (-4 / +7 lines)
170	struct acpi_buffer *return_buffer)	170	struct acpi_buffer *return_buffer)
171	{	171	{
172	acpi_status status;	172	acpi_status status;
		173	acpi_status status2;
173	struct acpi_evaluate_info *info;	174	struct acpi_evaluate_info *info;
174	acpi_size buffer_space_needed;	175	acpi_size buffer_space_needed;
175	u32 i;	176	u32 i;
Lines 328-339 acpi_evaluate_object(acpi_handle handle, Link Here
328	* Delete the internal return object. NOTE: Interpreter must be	329	* Delete the internal return object. NOTE: Interpreter must be
329	* locked to avoid race condition.	330	* locked to avoid race condition.
330	*/	331	*/
331	acpi_ex_enter_interpreter();	332	status2 = acpi_ex_enter_interpreter();
		333	if (ACPI_SUCCESS(status2)) {
332		334
333	/* Remove one reference on the return object (should delete it) */	335	/* Remove one reference on the return object (should delete it) */
334		336
335	acpi_ut_remove_reference(info->return_object);	337	acpi_ut_remove_reference(info->return_object);
336	acpi_ex_exit_interpreter();	338	acpi_ex_exit_interpreter();
		339	}
337	}	340	}
338		341
339	cleanup:	342	cleanup:

Lines 446-459 acpi_ex_copy_integer_to_buffer_field(union acpi_operand_object *source_desc, Link Here

(-)a/include/acpi/acinterp.h (-5 / +1 lines)
446	/*	446	/*
447	* exutils - interpreter/scanner utilities	447	* exutils - interpreter/scanner utilities
448	*/	448	*/
449	void acpi_ex_enter_interpreter(void);	449	acpi_status acpi_ex_enter_interpreter(void);
450		450
451	void acpi_ex_exit_interpreter(void);	451	void acpi_ex_exit_interpreter(void);
452		452
453	void acpi_ex_reacquire_interpreter(void);
454
455	void acpi_ex_relinquish_interpreter(void);
456
457	void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc);	453	void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc);
458		454
459	u8 acpi_ex_acquire_global_lock(u32 rule);	455	u8 acpi_ex_acquire_global_lock(u32 rule);

Lines 76-90 static u32 acpi_ex_digits_needed(acpi_integer value, u32 base); Link Here

(-)a/drivers/acpi/executer/exutils.c (-84 / +20 lines)
76	*	76	*
77	* PARAMETERS: None	77	* PARAMETERS: None
78	*	78	*
79	* RETURN: None	79	* RETURN: Status
80	*	80	*
81	* DESCRIPTION: Enter the interpreter execution region. Failure to enter	81	* DESCRIPTION: Enter the interpreter execution region. Failure to enter
82	* the interpreter region is a fatal system error. Used in	82	* the interpreter region is a fatal system error
83	* conjunction with exit_interpreter.
84	*	83	*
85	******************************************************************************/	84	******************************************************************************/
86		85
87	void acpi_ex_enter_interpreter(void)	86	acpi_status acpi_ex_enter_interpreter(void)
88	{	87	{
89	acpi_status status;	88	acpi_status status;
90		89
Lines 92-133 void acpi_ex_enter_interpreter(void) Link Here
92		91
93	status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);	92	status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
94	if (ACPI_FAILURE(status)) {	93	if (ACPI_FAILURE(status)) {
95	ACPI_ERROR((AE_INFO,	94	ACPI_ERROR((AE_INFO, "Could not acquire interpreter mutex"));
96	"Could not acquire AML Interpreter mutex"));
97	}	95	}
98		96
99	return_VOID;	97	return_ACPI_STATUS(status);
100	}
101
102	/*******************************************************************************
103	*
104	* FUNCTION: acpi_ex_reacquire_interpreter
105	*
106	* PARAMETERS: None
107	*
108	* RETURN: None
109	*
110	* DESCRIPTION: Reacquire the interpreter execution region from within the
111	* interpreter code. Failure to enter the interpreter region is a
112	* fatal system error. Used in conjuction with
113	* relinquish_interpreter
114	*
115	******************************************************************************/
116
117	void acpi_ex_reacquire_interpreter(void)
118	{
119	ACPI_FUNCTION_TRACE(ex_reacquire_interpreter);
120
121	/*
122	* If the global serialized flag is set, do not release the interpreter,
123	* since it was not actually released by acpi_ex_relinquish_interpreter.
124	* This forces the interpreter to be single threaded.
125	*/
126	if (!acpi_gbl_all_methods_serialized) {
127	acpi_ex_enter_interpreter();
128	}
129
130	return_VOID;
131	}	98	}
132		99
133	/*******************************************************************************	100	/*******************************************************************************
Lines 138-146 void acpi_ex_reacquire_interpreter(void) Link Here
138	*	105	*
139	* RETURN: None	106	* RETURN: None
140	*	107	*
141	* DESCRIPTION: Exit the interpreter execution region. This is the top level	108	* DESCRIPTION: Exit the interpreter execution region
142	* routine used to exit the interpreter when all processing has	109	*
143	* been completed.	110	* Cases where the interpreter is unlocked:
		111	* 1) Completion of the execution of a control method
		112	* 2) Method blocked on a Sleep() AML opcode
		113	* 3) Method blocked on an Acquire() AML opcode
		114	* 4) Method blocked on a Wait() AML opcode
		115	* 5) Method blocked to acquire the global lock
		116	* 6) Method blocked to execute a serialized control method that is
		117	* already executing
		118	* 7) About to invoke a user-installed opregion handler
144	*	119	*
145	******************************************************************************/	120	******************************************************************************/
146		121
Lines 152-197 void acpi_ex_exit_interpreter(void) Link Here
152		127
153	status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);	128	status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
154	if (ACPI_FAILURE(status)) {	129	if (ACPI_FAILURE(status)) {
155	ACPI_ERROR((AE_INFO,	130	ACPI_ERROR((AE_INFO, "Could not release interpreter mutex"));
156	"Could not release AML Interpreter mutex"));
157	}
158
159	return_VOID;
160	}
161
162	/*******************************************************************************
163	*
164	* FUNCTION: acpi_ex_relinquish_interpreter
165	*
166	* PARAMETERS: None
167	*
168	* RETURN: None
169	*
170	* DESCRIPTION: Exit the interpreter execution region, from within the
171	* interpreter - before attempting an operation that will possibly
172	* block the running thread.
173	*
174	* Cases where the interpreter is unlocked internally
175	* 1) Method to be blocked on a Sleep() AML opcode
176	* 2) Method to be blocked on an Acquire() AML opcode
177	* 3) Method to be blocked on a Wait() AML opcode
178	* 4) Method to be blocked to acquire the global lock
179	* 5) Method to be blocked waiting to execute a serialized control method
180	* that is currently executing
181	* 6) About to invoke a user-installed opregion handler
182	*
183	******************************************************************************/
184
185	void acpi_ex_relinquish_interpreter(void)
186	{
187	ACPI_FUNCTION_TRACE(ex_relinquish_interpreter);
188
189	/*
190	* If the global serialized flag is set, do not release the interpreter.
191	* This forces the interpreter to be single threaded.
192	*/
193	if (!acpi_gbl_all_methods_serialized) {
194	acpi_ex_exit_interpreter();
195	}	131	}
196		132
197	return_VOID;	133	return_VOID;
Lines 205-212 void acpi_ex_relinquish_interpreter(void) Link Here
205	*	141	*
206	* RETURN: none	142	* RETURN: none
207	*	143	*
208	* DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is	144	* DESCRIPTION: Truncate a number to 32-bits if the currently executing method
209	* 32-bit, as determined by the revision of the DSDT.	145	* belongs to a 32-bit ACPI table.
210	*	146	*
211	******************************************************************************/	147	******************************************************************************/
212		148