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/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* 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 DAMAGE.
*/
#ifndef _SCI_BASE_MEMORY_DESCRIPTOR_LIST_H_
#define _SCI_BASE_MEMORY_DESCRIPTOR_LIST_H_
/**
* This file contains the protected interface structures, constants and
* interface methods for the struct sci_base_memory_descriptor_list object.
*
*
*/
#include "sci_types.h"
#include "sci_memory_descriptor_list.h"
/**
* struct sci_base_memory_descriptor_list - This structure contains all of the
* fields necessary to implement a simple stack for managing the list of
* available controller indices.
*
*
*/
struct sci_base_memory_descriptor_list {
/**
* This field indicates the length of the memory descriptor entry array.
*/
u32 length;
/**
* This field is utilized to provide iterator pattern functionality.
* It indicates the index of the next memory descriptor in the iteration.
*/
u32 next_index;
/**
* This field will point to the list of memory descriptors.
*/
struct sci_physical_memory_descriptor *mde_array;
/**
* This field simply allows a user to chain memory descriptor lists
* together if desired. This field will be initialized to
* SCI_INVALID_HANDLE.
*/
struct sci_base_memory_descriptor_list *next_mdl;
};
/**
* sci_base_mdl_construct() - This method is invoked to construct an memory
* descriptor list. It initializes the fields of the MDL.
* @mdl: This parameter specifies the memory descriptor list to be constructed.
* @mde_array: This parameter specifies the array of memory descriptor entries
* to be managed by this list.
* @mde_array_length: This parameter specifies the size of the array of entries.
* @next_mdl: This parameter specifies a subsequent MDL object to be managed by
* this MDL object.
*
* none.
*/
void sci_base_mdl_construct(
struct sci_base_memory_descriptor_list *mdl,
struct sci_physical_memory_descriptor *mde_array,
u32 mde_array_length,
struct sci_base_memory_descriptor_list *next_mdl);
/**
* sci_base_mde_construct() -
*
* This macro constructs an memory descriptor entry with the given alignment
* and size
*/
#define sci_base_mde_construct(mde, alignment, size, attributes) \
{ \
(mde)->constant_memory_alignment = (alignment); \
(mde)->constant_memory_size = (size); \
(mde)->constant_memory_attributes = (attributes); \
}
/**
* sci_base_mde_is_valid() - This method validates that the memory descriptor
* is correctly filled out by the SCI User
* @mde: This parameter is the mde entry to validate
* @alignment: This parameter specifies the expected alignment of the memory
* for the mde.
* @size: This parameter specifies the memory size expected for the mde its
* value should not have been changed by the SCI User.
* @attributes: This parameter specifies the attributes for the memory
* descriptor provided.
*
* bool This method returns an indication as to whether the supplied MDE is
* valid or not. true The MDE is valid. false The MDE is not valid.
*/
bool sci_base_mde_is_valid(
struct sci_physical_memory_descriptor *mde,
u32 alignment,
u32 size,
u16 attributes);
#endif /* _SCI_BASE_MEMORY_DESCRIPTOR_LIST_H_ */
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