Commit aff8c277 authored by Robert Moore's avatar Robert Moore Committed by Len Brown

[ACPI] ACPICA 20050902

Fixed a problem with the internal Owner ID allocation and
deallocation mechanisms for control method execution and
recursive method invocation.  This should eliminate the
OWNER_ID_LIMIT exceptions and "Invalid OwnerId" messages
seen on some systems.  Recursive method invocation depth
is currently limited to 255.  (Alexey Starikovskiy)

http://bugzilla.kernel.org/show_bug.cgi?id=4892

Completely eliminated all vestiges of support for the
"module-level executable code" until this support is
fully implemented and debugged.  This should eliminate the
NO_RETURN_VALUE exceptions seen during table load on some
systems that invoke this support.

http://bugzilla.kernel.org/show_bug.cgi?id=5162

Fixed a problem within the resource manager code where
the transaction flags for a 64-bit address descriptor were
handled incorrectly in the type-specific flag byte.

Consolidated duplicate code within the address descriptor
resource manager code, reducing overall subsystem code size.
Signed-off-by: default avatarRobert Moore <Robert.Moore@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent a94f1881
......@@ -207,6 +207,13 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
return_ACPI_STATUS(AE_NULL_ENTRY);
}
/* Prevent wraparound of thread count */
if (obj_desc->method.thread_count == ACPI_UINT8_MAX) {
ACPI_REPORT_ERROR(("Method reached maximum reentrancy limit (255)\n"));
return_ACPI_STATUS(AE_AML_METHOD_LIMIT);
}
/*
* If there is a concurrency limit on this method, we need to
* obtain a unit from the method semaphore.
......@@ -236,6 +243,18 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
ACPI_WAIT_FOREVER);
}
/*
* Allocate an Owner ID for this method, only if this is the first thread
* to begin concurrent execution. We only need one owner_id, even if the
* method is invoked recursively.
*/
if (!obj_desc->method.owner_id) {
status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
/*
* Increment the method parse tree thread count since it has been
* reentered one more time (even if it is the same thread)
......@@ -289,11 +308,6 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
return_ACPI_STATUS(AE_NULL_OBJECT);
}
status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Init for new method, wait on concurrency semaphore */
status = acpi_ds_begin_method_execution(method_node, obj_desc,
......@@ -345,9 +359,8 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
}
/*
* The resolved arguments were put on the previous walk state's operand
* stack. Operands on the previous walk state stack always
* start at index 0.
* Null terminate the list of arguments
* stack. Operands on the previous walk state stack always
* start at index 0. Also, null terminate the list of arguments
*/
this_walk_state->operands[this_walk_state->num_operands] = NULL;
......@@ -380,21 +393,20 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
status = obj_desc->method.implementation(next_walk_state);
return_ACPI_STATUS(status);
}
return_ACPI_STATUS(AE_OK);
/* On error, we must delete the new walk state */
return_ACPI_STATUS(status);
cleanup:
acpi_ut_release_owner_id(&obj_desc->method.owner_id);
if (next_walk_state && (next_walk_state->method_desc)) {
/* Decrement the thread count on the method parse tree */
/* Decrement the thread count on the method parse tree */
if (next_walk_state && (next_walk_state->method_desc)) {
next_walk_state->method_desc->method.thread_count--;
}
(void)acpi_ds_terminate_control_method(next_walk_state);
/* On error, we must delete the new walk state */
acpi_ds_terminate_control_method(next_walk_state);
acpi_ds_delete_walk_state(next_walk_state);
return_ACPI_STATUS(status);
}
......@@ -479,7 +491,7 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
*
* PARAMETERS: walk_state - State of the method
*
* RETURN: Status
* RETURN: None
*
* DESCRIPTION: Terminate a control method. Delete everything that the method
* created, delete all locals and arguments, and delete the parse
......@@ -487,7 +499,7 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
*
******************************************************************************/
acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
void acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
{
union acpi_operand_object *obj_desc;
struct acpi_namespace_node *method_node;
......@@ -496,14 +508,14 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
ACPI_FUNCTION_TRACE_PTR("ds_terminate_control_method", walk_state);
if (!walk_state) {
return (AE_BAD_PARAMETER);
return_VOID;
}
/* The current method object was saved in the walk state */
obj_desc = walk_state->method_desc;
if (!obj_desc) {
return_ACPI_STATUS(AE_OK);
return_VOID;
}
/* Delete all arguments and locals */
......@@ -517,7 +529,7 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
*/
status = acpi_ut_acquire_mutex(ACPI_MTX_PARSER);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
return_VOID;
}
/* Signal completion of the execution of this method if necessary */
......@@ -528,7 +540,6 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
semaphore, 1);
if (ACPI_FAILURE(status)) {
ACPI_REPORT_ERROR(("Could not signal method semaphore\n"));
status = AE_OK;
/* Ignore error and continue cleanup */
}
......@@ -539,9 +550,8 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
"*** Not deleting method namespace, there are still %d threads\n",
walk_state->method_desc->method.
thread_count));
}
} else { /* This is the last executing thread */
if (!walk_state->method_desc->method.thread_count) {
/*
* Support to dynamically change a method from not_serialized to
* Serialized if it appears that the method is written foolishly and
......@@ -574,7 +584,7 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
*/
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
goto exit;
}
if (method_node->child) {
......@@ -590,12 +600,9 @@ acpi_status acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state)
status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
acpi_ut_release_owner_id(&walk_state->method_desc->method.
owner_id);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
status = acpi_ut_release_mutex(ACPI_MTX_PARSER);
return_ACPI_STATUS(status);
exit:
(void)acpi_ut_release_mutex(ACPI_MTX_PARSER);
return_VOID;
}
......@@ -486,8 +486,10 @@ acpi_ds_load2_begin_op(struct acpi_walk_state * walk_state,
if ((!(walk_state->op_info->flags & AML_NSOPCODE) &&
(walk_state->opcode != AML_INT_NAMEPATH_OP)) ||
(!(walk_state->op_info->flags & AML_NAMED))) {
#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
(walk_state->op_info->class == AML_CLASS_CONTROL)) {
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
"Begin/EXEC: %s (fl %8.8X)\n",
walk_state->op_info->name,
......@@ -499,6 +501,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state * walk_state,
acpi_ds_exec_begin_op(walk_state, out_op);
return_ACPI_STATUS(status);
}
#endif
return_ACPI_STATUS(AE_OK);
}
......@@ -731,6 +734,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
if (!(walk_state->op_info->flags & AML_NSOBJECT)) {
#ifndef ACPI_NO_METHOD_EXECUTION
#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
/* No namespace object. Executable opcode? */
if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
......@@ -745,6 +749,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
status = acpi_ds_exec_end_op(walk_state);
return_ACPI_STATUS(status);
}
#endif
#endif
return_ACPI_STATUS(AE_OK);
}
......
......@@ -438,7 +438,6 @@ acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
{
acpi_status status;
acpi_status terminate_status;
struct acpi_thread_state *thread;
struct acpi_thread_state *prev_walk_list = acpi_gbl_current_walk_list;
struct acpi_walk_state *previous_walk_state;
......@@ -508,6 +507,10 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
walk_state->method_node, NULL,
status);
/* Ensure proper cleanup */
walk_state->parse_flags |= ACPI_PARSE_EXECUTE;
/* Check for possible multi-thread reentrancy problem */
if ((status == AE_ALREADY_EXISTS) &&
......@@ -524,14 +527,6 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
}
}
if (walk_state->method_desc) {
/* Decrement the thread count on the method parse tree */
if (walk_state->method_desc->method.thread_count) {
walk_state->method_desc->method.thread_count--;
}
}
/* We are done with this walk, move on to the parent if any */
walk_state = acpi_ds_pop_walk_state(thread);
......@@ -546,13 +541,13 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
*/
if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) ==
ACPI_PARSE_EXECUTE) {
terminate_status =
acpi_ds_terminate_control_method(walk_state);
if (ACPI_FAILURE(terminate_status)) {
ACPI_REPORT_ERROR(("Could not terminate control method properly\n"));
if (walk_state->method_desc) {
/* Decrement the thread count on the method parse tree */
/* Ignore error and continue */
walk_state->method_desc->method.thread_count--;
}
acpi_ds_terminate_control_method(walk_state);
}
/* Delete this walk state and all linked control states */
......
......@@ -98,16 +98,6 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
return_ACPI_STATUS(status);
}
/*
* Get a new owner_id for objects created by this method. Namespace
* objects (such as Operation Regions) can be created during the
* first pass parse.
*/
status = acpi_ut_allocate_owner_id(&info->obj_desc->method.owner_id);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/*
* The caller "owns" the parameters, so give each one an extra
* reference
......@@ -139,10 +129,6 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info)
status = acpi_ps_execute_pass(info);
cleanup:
if (info->obj_desc->method.owner_id) {
acpi_ut_release_owner_id(&info->obj_desc->method.owner_id);
}
/* Take away the extra reference that we gave the parameters above */
acpi_ps_update_parameter_list(info, REF_DECREMENT);
......
This diff is collapsed.
......@@ -290,7 +290,7 @@ acpi_rs_extended_irq_resource(u8 * byte_stream_buffer,
ACPI_FUNCTION_TRACE("rs_extended_irq_resource");
/* Point past the Descriptor to get the number of bytes consumed */
/* Get the Descriptor Length field */
buffer += 1;
ACPI_MOVE_16_TO_16(&temp16, buffer);
......@@ -398,7 +398,7 @@ acpi_rs_extended_irq_resource(u8 * byte_stream_buffer,
/* Copy the string into the buffer */
index = 0;
while (0x00 != *buffer) {
while (*buffer) {
*temp_ptr = *buffer;
temp_ptr += 1;
......@@ -408,7 +408,7 @@ acpi_rs_extended_irq_resource(u8 * byte_stream_buffer,
/* Add the terminating null */
*temp_ptr = 0x00;
*temp_ptr = 0;
output_struct->data.extended_irq.resource_source.string_length =
index + 1;
......@@ -420,7 +420,7 @@ acpi_rs_extended_irq_resource(u8 * byte_stream_buffer,
temp8 = (u8) (index + 1);
struct_size += ACPI_ROUND_UP_to_32_bITS(temp8);
} else {
output_struct->data.extended_irq.resource_source.index = 0x00;
output_struct->data.extended_irq.resource_source.index = 0;
output_struct->data.extended_irq.resource_source.string_length =
0;
output_struct->data.extended_irq.resource_source.string_ptr =
......@@ -461,16 +461,15 @@ acpi_rs_extended_irq_stream(struct acpi_resource *linked_list,
u16 *length_field;
u8 temp8 = 0;
u8 index;
char *temp_pointer = NULL;
ACPI_FUNCTION_TRACE("rs_extended_irq_stream");
/* The descriptor field is static */
/* Set the Descriptor Type field */
*buffer = 0x89;
*buffer = ACPI_RDESC_TYPE_EXTENDED_XRUPT;
buffer += 1;
/* Set a pointer to the Length field - to be filled in later */
/* Save a pointer to the Length field - to be filled in later */
length_field = ACPI_CAST_PTR(u16, buffer);
buffer += 2;
......@@ -524,16 +523,14 @@ acpi_rs_extended_irq_stream(struct acpi_resource *linked_list,
(u8) linked_list->data.extended_irq.resource_source.index;
buffer += 1;
temp_pointer = (char *)buffer;
/* Copy the string */
ACPI_STRCPY(temp_pointer,
ACPI_STRCPY((char *)buffer,
linked_list->data.extended_irq.resource_source.
string_ptr);
/*
* Buffer needs to be set to the length of the sting + one for the
* Buffer needs to be set to the length of the string + one for the
* terminating null
*/
buffer +=
......
......@@ -67,6 +67,14 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
ACPI_FUNCTION_TRACE("ut_allocate_owner_id");
/* Guard against multiple allocations of ID to the same location */
if (*owner_id) {
ACPI_REPORT_ERROR(("Owner ID [%2.2X] already exists\n",
*owner_id));
return_ACPI_STATUS(AE_ALREADY_EXISTS);
}
/* Mutex for the global ID mask */
status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
......@@ -80,7 +88,8 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
if (!(acpi_gbl_owner_id_mask & (1 << i))) {
ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
"Current owner_id mask: %8.8X New ID: %2.2X\n",
acpi_gbl_owner_id_mask, (i + 1)));
acpi_gbl_owner_id_mask,
(unsigned int)(i + 1)));
acpi_gbl_owner_id_mask |= (1 << i);
*owner_id = (acpi_owner_id) (i + 1);
......@@ -143,7 +152,9 @@ void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
return_VOID;
}
owner_id--; /* Normalize to zero */
/* Normalize the ID to zero */
owner_id--;
/* Free the owner ID only if it is valid */
......
......@@ -63,7 +63,7 @@
/* Version string */
#define ACPI_CA_VERSION 0x20050815
#define ACPI_CA_VERSION 0x20050902
/*
* OS name, used for the _OS object. The _OS object is essentially obsolete,
......
......@@ -194,8 +194,7 @@ acpi_status
acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
union acpi_operand_object *return_desc);
acpi_status
acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state);
void acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
......
......@@ -1074,14 +1074,21 @@ struct acpi_resource_source {
char *string_ptr;
};
/* Fields common to all address descriptors, 16/32/64 bit */
#define ACPI_RESOURCE_ADDRESS_COMMON \
u32 resource_type; \
u32 producer_consumer; \
u32 decode; \
u32 min_address_fixed; \
u32 max_address_fixed; \
union acpi_resource_attribute attribute;
struct acpi_resource_address {
ACPI_RESOURCE_ADDRESS_COMMON};
struct acpi_resource_address16 {
u32 resource_type;
u32 producer_consumer;
u32 decode;
u32 min_address_fixed;
u32 max_address_fixed;
union acpi_resource_attribute attribute;
u32 granularity;
ACPI_RESOURCE_ADDRESS_COMMON u32 granularity;
u32 min_address_range;
u32 max_address_range;
u32 address_translation_offset;
......@@ -1090,13 +1097,7 @@ struct acpi_resource_address16 {
};
struct acpi_resource_address32 {
u32 resource_type;
u32 producer_consumer;
u32 decode;
u32 min_address_fixed;
u32 max_address_fixed;
union acpi_resource_attribute attribute;
u32 granularity;
ACPI_RESOURCE_ADDRESS_COMMON u32 granularity;
u32 min_address_range;
u32 max_address_range;
u32 address_translation_offset;
......@@ -1105,13 +1106,7 @@ struct acpi_resource_address32 {
};
struct acpi_resource_address64 {
u32 resource_type;
u32 producer_consumer;
u32 decode;
u32 min_address_fixed;
u32 max_address_fixed;
union acpi_resource_attribute attribute;
u64 granularity;
ACPI_RESOURCE_ADDRESS_COMMON u64 granularity;
u64 min_address_range;
u64 max_address_range;
u64 address_translation_offset;
......@@ -1161,6 +1156,7 @@ union acpi_resource_data {
struct acpi_resource_mem24 memory24;
struct acpi_resource_mem32 memory32;
struct acpi_resource_fixed_mem32 fixed_memory32;
struct acpi_resource_address address; /* Common 16/32/64 address fields */
struct acpi_resource_address16 address16;
struct acpi_resource_address32 address32;
struct acpi_resource_address64 address64;
......
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