Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 646 insertions, 0 deletions

diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c
new file mode 100644
index 0000000..d94c260
--- /dev/null
+++ b/drivers/acpi/executer/excreate.c
@@ -0,0 +1,646 @@
+/******************************************************************************
+ *
+ * Module Name: excreate - Named object creation
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+
+#include <acpi/acpi.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acevents.h>
+#include <acpi/actables.h>
+
+
+#define _COMPONENT          ACPI_EXECUTER
+	 ACPI_MODULE_NAME    ("excreate")
+
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ex_create_alias
+ *
+ * PARAMETERS:  walk_state           - Current state, contains operands
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create a new named alias
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ex_create_alias (
+	struct acpi_walk_state          *walk_state)
+{
+	struct acpi_namespace_node      *target_node;
+	struct acpi_namespace_node      *alias_node;
+	acpi_status                     status = AE_OK;
+
+
+	ACPI_FUNCTION_TRACE ("ex_create_alias");
+
+
+	/* Get the source/alias operands (both namespace nodes) */
+
+	alias_node = (struct acpi_namespace_node *) walk_state->operands[0];
+	target_node = (struct acpi_namespace_node *) walk_state->operands[1];
+
+	if ((target_node->type == ACPI_TYPE_LOCAL_ALIAS) ||
+		(target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) {
+		/*
+		 * Dereference an existing alias so that we don't create a chain
+		 * of aliases.  With this code, we guarantee that an alias is
+		 * always exactly one level of indirection away from the
+		 * actual aliased name.
+		 */
+		target_node = ACPI_CAST_PTR (struct acpi_namespace_node, target_node->object);
+	}
+
+	/*
+	 * For objects that can never change (i.e., the NS node will
+	 * permanently point to the same object), we can simply attach
+	 * the object to the new NS node.  For other objects (such as
+	 * Integers, buffers, etc.), we have to point the Alias node
+	 * to the original Node.
+	 */
+	switch (target_node->type) {
+	case ACPI_TYPE_INTEGER:
+	case ACPI_TYPE_STRING:
+	case ACPI_TYPE_BUFFER:
+	case ACPI_TYPE_PACKAGE:
+	case ACPI_TYPE_BUFFER_FIELD:
+
+		/*
+		 * The new alias has the type ALIAS and points to the original
+		 * NS node, not the object itself.  This is because for these
+		 * types, the object can change dynamically via a Store.
+		 */
+		alias_node->type = ACPI_TYPE_LOCAL_ALIAS;
+		alias_node->object = ACPI_CAST_PTR (union acpi_operand_object, target_node);
+		break;
+
+	case ACPI_TYPE_METHOD:
+
+		/*
+		 * The new alias has the type ALIAS and points to the original
+		 * NS node, not the object itself.  This is because for these
+		 * types, the object can change dynamically via a Store.
+		 */
+		alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS;
+		alias_node->object = ACPI_CAST_PTR (union acpi_operand_object, target_node);
+		break;
+
+	default:
+
+		/* Attach the original source object to the new Alias Node */
+
+		/*
+		 * The new alias assumes the type of the target, and it points
+		 * to the same object.  The reference count of the object has an
+		 * additional reference to prevent deletion out from under either the
+		 * target node or the alias Node
+		 */
+		status = acpi_ns_attach_object (alias_node,
+				 acpi_ns_get_attached_object (target_node),
+				 target_node->type);
+		break;
+	}
+
+	/* Since both operands are Nodes, we don't need to delete them */
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ex_create_event
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create a new event object
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ex_create_event (
+	struct acpi_walk_state          *walk_state)
+{
+	acpi_status                     status;
+	union acpi_operand_object       *obj_desc;
+
+
+	ACPI_FUNCTION_TRACE ("ex_create_event");
+
+
+	obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_EVENT);
+	if (!obj_desc) {
+		status = AE_NO_MEMORY;
+		goto cleanup;
+	}
+
+	/*
+	 * Create the actual OS semaphore, with zero initial units -- meaning
+	 * that the event is created in an unsignalled state
+	 */
+	status = acpi_os_create_semaphore (ACPI_NO_UNIT_LIMIT, 0,
+			   &obj_desc->event.semaphore);
+	if (ACPI_FAILURE (status)) {
+		goto cleanup;
+	}
+
+	/* Attach object to the Node */
+
+	status = acpi_ns_attach_object ((struct acpi_namespace_node *) walk_state->operands[0],
+			   obj_desc, ACPI_TYPE_EVENT);
+
+cleanup:
+	/*
+	 * Remove local reference to the object (on error, will cause deletion
+	 * of both object and semaphore if present.)
+	 */
+	acpi_ut_remove_reference (obj_desc);
+	return_ACPI_STATUS (status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ex_create_mutex
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create a new mutex object
+ *
+ *              Mutex (Name[0], sync_level[1])
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ex_create_mutex (
+	struct acpi_walk_state          *walk_state)
+{
+	acpi_status                     status = AE_OK;
+	union acpi_operand_object       *obj_desc;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ex_create_mutex", ACPI_WALK_OPERANDS);
+
+
+	/* Create the new mutex object */
+
+	obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_MUTEX);
+	if (!obj_desc) {
+		status = AE_NO_MEMORY;
+		goto cleanup;
+	}
+
+	/*
+	 * Create the actual OS semaphore.
+	 * One unit max to make it a mutex, with one initial unit to allow
+	 * the mutex to be acquired.
+	 */
+	status = acpi_os_create_semaphore (1, 1, &obj_desc->mutex.semaphore);
+	if (ACPI_FAILURE (status)) {
+		goto cleanup;
+	}
+
+	/* Init object and attach to NS node */
+
+	obj_desc->mutex.sync_level = (u8) walk_state->operands[1]->integer.value;
+	obj_desc->mutex.node = (struct acpi_namespace_node *) walk_state->operands[0];
+
+	status = acpi_ns_attach_object (obj_desc->mutex.node,
+			 obj_desc, ACPI_TYPE_MUTEX);
+
+
+cleanup:
+	/*
+	 * Remove local reference to the object (on error, will cause deletion
+	 * of both object and semaphore if present.)
+	 */
+	acpi_ut_remove_reference (obj_desc);
+	return_ACPI_STATUS (status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ex_create_region
+ *
+ * PARAMETERS:  aml_start           - Pointer to the region declaration AML
+ *              aml_length          - Max length of the declaration AML
+ *              Operands            - List of operands for the opcode
+ *              walk_state          - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create a new operation region object
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ex_create_region (
+	u8                              *aml_start,
+	u32                             aml_length,
+	u8                              region_space,
+	struct acpi_walk_state          *walk_state)
+{
+	acpi_status                     status;
+	union acpi_operand_object       *obj_desc;
+	struct acpi_namespace_node      *node;
+	union acpi_operand_object       *region_obj2;
+
+
+	ACPI_FUNCTION_TRACE ("ex_create_region");
+
+
+	/* Get the Namespace Node */
+
+	node = walk_state->op->common.node;
+
+	/*
+	 * If the region object is already attached to this node,
+	 * just return
+	 */
+	if (acpi_ns_get_attached_object (node)) {
+		return_ACPI_STATUS (AE_OK);
+	}
+
+	/*
+	 * Space ID must be one of the predefined IDs, or in the user-defined
+	 * range
+	 */
+	if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) &&
+		(region_space < ACPI_USER_REGION_BEGIN)) {
+		ACPI_REPORT_ERROR (("Invalid address_space type %X\n", region_space));
+		return_ACPI_STATUS (AE_AML_INVALID_SPACE_ID);
+	}
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Region Type - %s (%X)\n",
+			  acpi_ut_get_region_name (region_space), region_space));
+
+	/* Create the region descriptor */
+
+	obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_REGION);
+	if (!obj_desc) {
+		status = AE_NO_MEMORY;
+		goto cleanup;
+	}
+
+	/*
+	 * Remember location in AML stream of address & length
+	 * operands since they need to be evaluated at run time.
+	 */
+	region_obj2                 = obj_desc->common.next_object;
+	region_obj2->extra.aml_start = aml_start;
+	region_obj2->extra.aml_length = aml_length;
+
+	/* Init the region from the operands */
+
+	obj_desc->region.space_id = region_space;
+	obj_desc->region.address = 0;
+	obj_desc->region.length = 0;
+	obj_desc->region.node   = node;
+
+	/* Install the new region object in the parent Node */
+
+	status = acpi_ns_attach_object (node, obj_desc, ACPI_TYPE_REGION);
+
+
+cleanup:
+
+	/* Remove local reference to the object */
+
+	acpi_ut_remove_reference (obj_desc);
+	return_ACPI_STATUS (status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ex_create_table_region
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create a new data_table_region object
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ex_create_table_region (
+	struct acpi_walk_state          *walk_state)
+{
+	acpi_status                     status;
+	union acpi_operand_object       **operand = &walk_state->operands[0];
+	union acpi_operand_object       *obj_desc;
+	struct acpi_namespace_node      *node;
+	struct acpi_table_header        *table;
+	union acpi_operand_object       *region_obj2;
+
+
+	ACPI_FUNCTION_TRACE ("ex_create_table_region");
+
+
+	/* Get the Node from the object stack  */
+
+	node = walk_state->op->common.node;
+
+	/*
+	 * If the region object is already attached to this node,
+	 * just return
+	 */
+	if (acpi_ns_get_attached_object (node)) {
+		return_ACPI_STATUS (AE_OK);
+	}
+
+	/* Find the ACPI table */
+
+	status = acpi_tb_find_table (operand[1]->string.pointer,
+			   operand[2]->string.pointer,
+			   operand[3]->string.pointer, &table);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/* Create the region descriptor */
+
+	obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_REGION);
+	if (!obj_desc) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	region_obj2                     = obj_desc->common.next_object;
+	region_obj2->extra.region_context = NULL;
+
+	/* Init the region from the operands */
+
+	obj_desc->region.space_id = REGION_DATA_TABLE;
+	obj_desc->region.address = (acpi_physical_address) ACPI_TO_INTEGER (table);
+	obj_desc->region.length = table->length;
+	obj_desc->region.node   = node;
+	obj_desc->region.flags  = AOPOBJ_DATA_VALID;
+
+	/* Install the new region object in the parent Node */
+
+	status = acpi_ns_attach_object (node, obj_desc, ACPI_TYPE_REGION);
+	if (ACPI_FAILURE (status)) {
+		goto cleanup;
+	}
+
+	status = acpi_ev_initialize_region (obj_desc, FALSE);
+	if (ACPI_FAILURE (status)) {
+		if (status == AE_NOT_EXIST) {
+			status = AE_OK;
+		}
+		else {
+			goto cleanup;
+		}
+	}
+
+	obj_desc->region.flags |= AOPOBJ_SETUP_COMPLETE;
+
+
+cleanup:
+
+	/* Remove local reference to the object */
+
+	acpi_ut_remove_reference (obj_desc);
+	return_ACPI_STATUS (status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ex_create_processor
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create a new processor object and populate the fields
+ *
+ *              Processor (Name[0], cpu_iD[1], pblock_addr[2], pblock_length[3])
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ex_create_processor (
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_operand_object       **operand = &walk_state->operands[0];
+	union acpi_operand_object       *obj_desc;
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ex_create_processor", walk_state);
+
+
+	/* Create the processor object */
+
+	obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_PROCESSOR);
+	if (!obj_desc) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	/*
+	 * Initialize the processor object from the operands
+	 */
+	obj_desc->processor.proc_id = (u8)          operand[1]->integer.value;
+	obj_desc->processor.address = (acpi_io_address) operand[2]->integer.value;
+	obj_desc->processor.length = (u8)           operand[3]->integer.value;
+
+	/* Install the processor object in the parent Node */
+
+	status = acpi_ns_attach_object ((struct acpi_namespace_node *) operand[0],
+			  obj_desc, ACPI_TYPE_PROCESSOR);
+
+	/* Remove local reference to the object */
+
+	acpi_ut_remove_reference (obj_desc);
+	return_ACPI_STATUS (status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ex_create_power_resource
+ *
+ * PARAMETERS:  walk_state          - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create a new power_resource object and populate the fields
+ *
+ *              power_resource (Name[0], system_level[1], resource_order[2])
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ex_create_power_resource (
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_operand_object       **operand = &walk_state->operands[0];
+	acpi_status                     status;
+	union acpi_operand_object       *obj_desc;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ex_create_power_resource", walk_state);
+
+
+	/* Create the power resource object */
+
+	obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_POWER);
+	if (!obj_desc) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	/* Initialize the power object from the operands */
+
+	obj_desc->power_resource.system_level = (u8) operand[1]->integer.value;
+	obj_desc->power_resource.resource_order = (u16) operand[2]->integer.value;
+
+	/* Install the  power resource object in the parent Node */
+
+	status = acpi_ns_attach_object ((struct acpi_namespace_node *) operand[0],
+			  obj_desc, ACPI_TYPE_POWER);
+
+	/* Remove local reference to the object */
+
+	acpi_ut_remove_reference (obj_desc);
+	return_ACPI_STATUS (status);
+}
+
+#endif
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_ex_create_method
+ *
+ * PARAMETERS:  aml_start       - First byte of the method's AML
+ *              aml_length      - AML byte count for this method
+ *              walk_state      - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create a new method object
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ex_create_method (
+	u8                              *aml_start,
+	u32                             aml_length,
+	struct acpi_walk_state          *walk_state)
+{
+	union acpi_operand_object       **operand = &walk_state->operands[0];
+	union acpi_operand_object       *obj_desc;
+	acpi_status                     status;
+	u8                              method_flags;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ex_create_method", walk_state);
+
+
+	/* Create a new method object */
+
+	obj_desc = acpi_ut_create_internal_object (ACPI_TYPE_METHOD);
+	if (!obj_desc) {
+	   return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	/* Save the method's AML pointer and length  */
+
+	obj_desc->method.aml_start = aml_start;
+	obj_desc->method.aml_length = aml_length;
+
+	/*
+	 * Disassemble the method flags.  Split off the Arg Count
+	 * for efficiency
+	 */
+	method_flags = (u8) operand[1]->integer.value;
+
+	obj_desc->method.method_flags = (u8) (method_flags & ~AML_METHOD_ARG_COUNT);
+	obj_desc->method.param_count = (u8) (method_flags & AML_METHOD_ARG_COUNT);
+
+	/*
+	 * Get the concurrency count.  If required, a semaphore will be
+	 * created for this method when it is parsed.
+	 */
+	if (acpi_gbl_all_methods_serialized) {
+		obj_desc->method.concurrency = 1;
+		obj_desc->method.method_flags |= AML_METHOD_SERIALIZED;
+	}
+	else if (method_flags & AML_METHOD_SERIALIZED) {
+		/*
+		 * ACPI 1.0: Concurrency = 1
+		 * ACPI 2.0: Concurrency = (sync_level (in method declaration) + 1)
+		 */
+		obj_desc->method.concurrency = (u8)
+				  (((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4) + 1);
+	}
+	else {
+		obj_desc->method.concurrency = ACPI_INFINITE_CONCURRENCY;
+	}
+
+	/* Attach the new object to the method Node */
+
+	status = acpi_ns_attach_object ((struct acpi_namespace_node *) operand[0],
+			  obj_desc, ACPI_TYPE_METHOD);
+
+	/* Remove local reference to the object */
+
+	acpi_ut_remove_reference (obj_desc);
+
+	/* Remove a reference to the operand */
+
+	acpi_ut_remove_reference (operand[1]);
+	return_ACPI_STATUS (status);
+}
+
+