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-rw-r--r--drivers/acpi/events/evmisc.c8
-rw-r--r--drivers/acpi/events/evregion.c15
-rw-r--r--drivers/acpi/events/evxface.c6
-rw-r--r--drivers/acpi/executer/excreate.c5
-rw-r--r--drivers/acpi/executer/exsystem.c30
-rw-r--r--drivers/acpi/executer/exutils.c104
-rw-r--r--drivers/acpi/hardware/hwsleep.c5
-rw-r--r--drivers/acpi/ibm_acpi.c19
-rw-r--r--drivers/acpi/namespace/nseval.c11
-rw-r--r--drivers/acpi/namespace/nsinit.c7
-rw-r--r--drivers/acpi/namespace/nsxfeval.c11
-rw-r--r--drivers/acpi/processor_idle.c3
-rw-r--r--drivers/acpi/tables.c57
13 files changed, 164 insertions, 117 deletions
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 3a799b9b5df..cae786ca860 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -196,11 +196,15 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
notify_info->notify.value = (u16) notify_value;
notify_info->notify.handler_obj = handler_obj;
- acpi_ex_relinquish_interpreter();
+ acpi_ex_exit_interpreter();
acpi_ev_notify_dispatch(notify_info);
- acpi_ex_reacquire_interpreter();
+ status = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
}
if (!handler_obj) {
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index e99f0c435a4..96b0e843174 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -291,6 +291,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
u32 bit_width, acpi_integer * value)
{
acpi_status status;
+ acpi_status status2;
acpi_adr_space_handler handler;
acpi_adr_space_setup region_setup;
union acpi_operand_object *handler_desc;
@@ -344,7 +345,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
* setup will potentially execute control methods
* (e.g., _REG method for this region)
*/
- acpi_ex_relinquish_interpreter();
+ acpi_ex_exit_interpreter();
status = region_setup(region_obj, ACPI_REGION_ACTIVATE,
handler_desc->address_space.context,
@@ -352,7 +353,10 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
/* Re-enter the interpreter */
- acpi_ex_reacquire_interpreter();
+ status2 = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
+ }
/* Check for failure of the Region Setup */
@@ -405,7 +409,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
* exit the interpreter because the handler *might* block -- we don't
* know what it will do, so we can't hold the lock on the intepreter.
*/
- acpi_ex_relinquish_interpreter();
+ acpi_ex_exit_interpreter();
}
/* Call the handler */
@@ -426,7 +430,10 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
* We just returned from a non-default handler, we must re-enter the
* interpreter
*/
- acpi_ex_reacquire_interpreter();
+ status2 = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
+ }
}
return_ACPI_STATUS(status);
diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c
index 685a103a358..a3379bafa67 100644
--- a/drivers/acpi/events/evxface.c
+++ b/drivers/acpi/events/evxface.c
@@ -768,9 +768,11 @@ acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
return (AE_BAD_PARAMETER);
}
- /* Must lock interpreter to prevent race conditions */
+ status = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
- acpi_ex_enter_interpreter();
status = acpi_ev_acquire_global_lock(timeout);
acpi_ex_exit_interpreter();
diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c
index 7c38528a7e8..ae97812681a 100644
--- a/drivers/acpi/executer/excreate.c
+++ b/drivers/acpi/executer/excreate.c
@@ -583,7 +583,10 @@ acpi_ex_create_method(u8 * aml_start,
* Get the sync_level. If method is serialized, a mutex will be
* created for this method when it is parsed.
*/
- if (method_flags & AML_METHOD_SERIALIZED) {
+ if (acpi_gbl_all_methods_serialized) {
+ obj_desc->method.sync_level = 0;
+ obj_desc->method.method_flags |= AML_METHOD_SERIALIZED;
+ } else if (method_flags & AML_METHOD_SERIALIZED) {
/*
* ACPI 1.0: sync_level = 0
* ACPI 2.0: sync_level = sync_level in method declaration
diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c
index 9460baff303..b2edf620ba8 100644
--- a/drivers/acpi/executer/exsystem.c
+++ b/drivers/acpi/executer/exsystem.c
@@ -66,6 +66,7 @@ ACPI_MODULE_NAME("exsystem")
acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
{
acpi_status status;
+ acpi_status status2;
ACPI_FUNCTION_TRACE(ex_system_wait_semaphore);
@@ -78,7 +79,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
/* We must wait, so unlock the interpreter */
- acpi_ex_relinquish_interpreter();
+ acpi_ex_exit_interpreter();
status = acpi_os_wait_semaphore(semaphore, 1, timeout);
@@ -88,7 +89,13 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
/* Reacquire the interpreter */
- acpi_ex_reacquire_interpreter();
+ status2 = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status2)) {
+
+ /* Report fatal error, could not acquire interpreter */
+
+ return_ACPI_STATUS(status2);
+ }
}
return_ACPI_STATUS(status);
@@ -112,6 +119,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
{
acpi_status status;
+ acpi_status status2;
ACPI_FUNCTION_TRACE(ex_system_wait_mutex);
@@ -124,7 +132,7 @@ acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
/* We must wait, so unlock the interpreter */
- acpi_ex_relinquish_interpreter();
+ acpi_ex_exit_interpreter();
status = acpi_os_acquire_mutex(mutex, timeout);
@@ -134,7 +142,13 @@ acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
/* Reacquire the interpreter */
- acpi_ex_reacquire_interpreter();
+ status2 = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status2)) {
+
+ /* Report fatal error, could not acquire interpreter */
+
+ return_ACPI_STATUS(status2);
+ }
}
return_ACPI_STATUS(status);
@@ -195,18 +209,20 @@ acpi_status acpi_ex_system_do_stall(u32 how_long)
acpi_status acpi_ex_system_do_suspend(acpi_integer how_long)
{
+ acpi_status status;
+
ACPI_FUNCTION_ENTRY();
/* Since this thread will sleep, we must release the interpreter */
- acpi_ex_relinquish_interpreter();
+ acpi_ex_exit_interpreter();
acpi_os_sleep(how_long);
/* And now we must get the interpreter again */
- acpi_ex_reacquire_interpreter();
- return (AE_OK);
+ status = acpi_ex_enter_interpreter();
+ return (status);
}
/*******************************************************************************
diff --git a/drivers/acpi/executer/exutils.c b/drivers/acpi/executer/exutils.c
index 6b0aeccbb69..aea461f3a48 100644
--- a/drivers/acpi/executer/exutils.c
+++ b/drivers/acpi/executer/exutils.c
@@ -76,15 +76,14 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base);
*
* PARAMETERS: None
*
- * RETURN: None
+ * RETURN: Status
*
- * DESCRIPTION: Enter the interpreter execution region. Failure to enter
- * the interpreter region is a fatal system error. Used in
- * conjunction with exit_interpreter.
+ * DESCRIPTION: Enter the interpreter execution region. Failure to enter
+ * the interpreter region is a fatal system error
*
******************************************************************************/
-void acpi_ex_enter_interpreter(void)
+acpi_status acpi_ex_enter_interpreter(void)
{
acpi_status status;
@@ -92,42 +91,10 @@ void acpi_ex_enter_interpreter(void)
status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not acquire AML Interpreter mutex"));
+ ACPI_ERROR((AE_INFO, "Could not acquire interpreter mutex"));
}
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * 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_ACPI_STATUS(status);
}
/*******************************************************************************
@@ -138,9 +105,17 @@ void acpi_ex_reacquire_interpreter(void)
*
* RETURN: None
*
- * DESCRIPTION: Exit the interpreter execution region. This is the top level
- * routine used to exit the interpreter when all processing has
- * been completed.
+ * 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
*
******************************************************************************/
@@ -152,46 +127,7 @@ void acpi_ex_exit_interpreter(void)
status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "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();
+ ACPI_ERROR((AE_INFO, "Could not release interpreter mutex"));
}
return_VOID;
@@ -205,8 +141,8 @@ void acpi_ex_relinquish_interpreter(void)
*
* RETURN: none
*
- * DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is
- * 32-bit, as determined by the revision of the DSDT.
+ * DESCRIPTION: Truncate a number to 32-bits if the currently executing method
+ * belongs to a 32-bit ACPI table.
*
******************************************************************************/
diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index 8fa93125fd4..c84b1faba28 100644
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -300,6 +300,11 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
/*
* 2) Enable all wakeup GPEs
*/
+ status = acpi_hw_disable_all_gpes();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
acpi_gbl_system_awake_and_running = FALSE;
status = acpi_hw_enable_all_wakeup_gpes();
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c
index 36901362fd2..dc1096608f4 100644
--- a/drivers/acpi/ibm_acpi.c
+++ b/drivers/acpi/ibm_acpi.c
@@ -2507,7 +2507,7 @@ static int __init setup_notify(struct ibm_struct *ibm)
ret = acpi_bus_get_device(*ibm->handle, &ibm->device);
if (ret < 0) {
printk(IBM_ERR "%s device not present\n", ibm->name);
- return 0;
+ return -ENODEV;
}
acpi_driver_data(ibm->device) = ibm;
@@ -2516,8 +2516,13 @@ static int __init setup_notify(struct ibm_struct *ibm)
status = acpi_install_notify_handler(*ibm->handle, ibm->type,
dispatch_notify, ibm);
if (ACPI_FAILURE(status)) {
- printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n",
- ibm->name, status);
+ if (status == AE_ALREADY_EXISTS) {
+ printk(IBM_NOTICE "another device driver is already handling %s events\n",
+ ibm->name);
+ } else {
+ printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n",
+ ibm->name, status);
+ }
return -ENODEV;
}
ibm->notify_installed = 1;
@@ -2553,6 +2558,8 @@ static int __init register_driver(struct ibm_struct *ibm)
return ret;
}
+static void ibm_exit(struct ibm_struct *ibm);
+
static int __init ibm_init(struct ibm_struct *ibm)
{
int ret;
@@ -2594,6 +2601,12 @@ static int __init ibm_init(struct ibm_struct *ibm)
if (ibm->notify) {
ret = setup_notify(ibm);
+ if (ret == -ENODEV) {
+ printk(IBM_NOTICE "disabling subdriver %s\n",
+ ibm->name);
+ ibm_exit(ibm);
+ return 0;
+ }
if (ret < 0)
return ret;
}
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c
index aa6370c67ec..26fd0dd6953 100644
--- a/drivers/acpi/namespace/nseval.c
+++ b/drivers/acpi/namespace/nseval.c
@@ -154,7 +154,11 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
* Execute the method via the interpreter. The interpreter is locked
* here before calling into the AML parser
*/
- acpi_ex_enter_interpreter();
+ status = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
status = acpi_ps_execute_method(info);
acpi_ex_exit_interpreter();
} else {
@@ -178,7 +182,10 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
* resolution, we must lock it because we could access an opregion.
* The opregion access code assumes that the interpreter is locked.
*/
- acpi_ex_enter_interpreter();
+ status = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
/* Function has a strange interface */
diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c
index 33db2241044..c4ab615f77f 100644
--- a/drivers/acpi/namespace/nsinit.c
+++ b/drivers/acpi/namespace/nsinit.c
@@ -214,7 +214,7 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
acpi_object_type type;
- acpi_status status = AE_OK;
+ acpi_status status;
struct acpi_init_walk_info *info =
(struct acpi_init_walk_info *)context;
struct acpi_namespace_node *node =
@@ -268,7 +268,10 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
/*
* Must lock the interpreter before executing AML code
*/
- acpi_ex_enter_interpreter();
+ status = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
/*
* Each of these types can contain executable AML code within the
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
index 7ac6ace5005..8904d0fae6a 100644
--- a/drivers/acpi/namespace/nsxfeval.c
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -170,6 +170,7 @@ acpi_evaluate_object(acpi_handle handle,
struct acpi_buffer *return_buffer)
{
acpi_status status;
+ acpi_status status2;
struct acpi_evaluate_info *info;
acpi_size buffer_space_needed;
u32 i;
@@ -328,12 +329,14 @@ acpi_evaluate_object(acpi_handle handle,
* Delete the internal return object. NOTE: Interpreter must be
* locked to avoid race condition.
*/
- acpi_ex_enter_interpreter();
+ status2 = acpi_ex_enter_interpreter();
+ if (ACPI_SUCCESS(status2)) {
- /* Remove one reference on the return object (should delete it) */
+ /* Remove one reference on the return object (should delete it) */
- acpi_ut_remove_reference(info->return_object);
- acpi_ex_exit_interpreter();
+ acpi_ut_remove_reference(info->return_object);
+ acpi_ex_exit_interpreter();
+ }
}
cleanup:
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 60773005b8a..cdf78943af4 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -268,6 +268,7 @@ static void acpi_timer_check_state(int state, struct acpi_processor *pr,
struct acpi_processor_cx *cx)
{
struct acpi_processor_power *pwr = &pr->power;
+ u8 type = local_apic_timer_c2_ok ? ACPI_STATE_C3 : ACPI_STATE_C2;
/*
* Check, if one of the previous states already marked the lapic
@@ -276,7 +277,7 @@ static void acpi_timer_check_state(int state, struct acpi_processor *pr,
if (pwr->timer_broadcast_on_state < state)
return;
- if (cx->type >= ACPI_STATE_C2)
+ if (cx->type >= type)
pr->power.timer_broadcast_on_state = state;
}
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 849e2c36180..c3419182c9a 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -42,7 +42,9 @@ static char *mps_inti_flags_trigger[] = { "dfl", "edge", "res", "level" };
static struct acpi_table_desc initial_tables[ACPI_MAX_TABLES] __initdata;
-void acpi_table_print_madt_entry(struct acpi_subtable_header * header)
+static int acpi_apic_instance __initdata;
+
+void acpi_table_print_madt_entry(struct acpi_subtable_header *header)
{
if (!header)
return;
@@ -183,8 +185,10 @@ acpi_table_parse_entries(char *id,
if (!handler)
return -EINVAL;
- /* Locate the table (if exists). There should only be one. */
- acpi_get_table(id, 0, &table_header);
+ if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
+ acpi_get_table(id, acpi_apic_instance, &table_header);
+ else
+ acpi_get_table(id, 0, &table_header);
if (!table_header) {
printk(KERN_WARNING PREFIX "%4.4s not present\n", id);
@@ -237,10 +241,15 @@ acpi_table_parse_madt(enum acpi_madt_type id,
int __init acpi_table_parse(char *id, acpi_table_handler handler)
{
struct acpi_table_header *table = NULL;
+
if (!handler)
return -EINVAL;
- acpi_get_table(id, 0, &table);
+ if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
+ acpi_get_table(id, acpi_apic_instance, &table);
+ else
+ acpi_get_table(id, 0, &table);
+
if (table) {
handler(table);
return 0;
@@ -248,6 +257,31 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler)
return 1;
}
+/*
+ * The BIOS is supposed to supply a single APIC/MADT,
+ * but some report two. Provide a knob to use either.
+ * (don't you wish instance 0 and 1 were not the same?)
+ */
+static void __init check_multiple_madt(void)
+{
+ struct acpi_table_header *table = NULL;
+
+ acpi_get_table(ACPI_SIG_MADT, 2, &table);
+ if (table) {
+ printk(KERN_WARNING PREFIX
+ "BIOS bug: multiple APIC/MADT found,"
+ " using %d\n", acpi_apic_instance);
+ printk(KERN_WARNING PREFIX
+ "If \"acpi_apic_instance=%d\" works better, "
+ "notify linux-acpi@vger.kernel.org\n",
+ acpi_apic_instance ? 0 : 2);
+
+ } else
+ acpi_apic_instance = 0;
+
+ return;
+}
+
/*
* acpi_table_init()
*
@@ -257,9 +291,22 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler)
* result: sdt_entry[] is initialized
*/
-
int __init acpi_table_init(void)
{
acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0);
+ check_multiple_madt();
+ return 0;
+}
+
+static int __init acpi_parse_apic_instance(char *str)
+{
+
+ acpi_apic_instance = simple_strtoul(str, NULL, 0);
+
+ printk(KERN_NOTICE PREFIX "Shall use APIC/MADT table %d\n",
+ acpi_apic_instance);
+
return 0;
}
+
+early_param("acpi_apic_instance", acpi_parse_apic_instance);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 09:08:05 +0000