| author | Dominic Pinkman <Dominic.Pinkman@Nokia.com> |
| Fri, 22 Jan 2010 18:26:19 +0000 | |
| changeset 1 | 25a17d01db0c |
| child 3 | 46218c8b8afa |
| permissions | -rw-r--r-- |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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<?xml version="1.0" encoding="utf-8"?> |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. --> |
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25a17d01db0c
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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<!-- This component and the accompanying materials are made available under the terms of the License |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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"Eclipse Public License v1.0" which accompanies this distribution, |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". --> |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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<!-- Initial Contributors: |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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Nokia Corporation - initial contribution. |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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Contributors: |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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--> |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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<!DOCTYPE concept |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
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<concept id="GUID-C13DFF33-7C54-5113-9277-CAD96215F075" xml:lang="en"><title>RAM |
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Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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Zones</title><shortdesc>A RAM zone is a physically contiguous section of RAM address space |
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25a17d01db0c
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that has a preference value and a unique ID.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody> |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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<p> A base port must define the RAM zones for a phone. The Kernel uses RAM |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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zones to decide how to allocate RAM pages so that: </p> |
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25a17d01db0c
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<ul> |
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Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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<li id="GUID-B407EC83-9493-5D76-9CAF-EFA86F06870E"><p>only the necessary parts |
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of a device’s RAM ICs are powered and refreshed. This may reduce power consumption. </p> </li> |
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<li id="GUID-77601E75-5D27-5283-9693-329F29370FE0"><p>pre-determined regions |
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Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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of physically contiguous RAM can be used for a specific function when required. |
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Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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For example, a buffer required by a camera peripheral. </p> </li> |
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Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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</ul> |
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<p>The system attempts to allocate memory in a preferred RAM zone. A preferred |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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RAM zone is a zone that has a lower preference value than another. </p> |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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<p>All methods that perform operations on a specific RAM zone take the unique |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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ID of the RAM zone as a parameter. </p> |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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<p>RAM zones are specified only once during the boot process by the base port. |
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25a17d01db0c
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The base port must do this in its ASSP/Variant in its implementation of the <xref href="GUID-A83A7C3C-7DC0-3B9C-842F-70FCC751365D.dita#GUID-A83A7C3C-7DC0-3B9C-842F-70FCC751365D/GUID-63F2135B-4264-3B3B-9B68-656A89BF7EE9"><apiname>Asic::Init1()</apiname></xref> function. </p> |
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Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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</conbody><related-links> |
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25a17d01db0c
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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<link href="GUID-26621CA5-B686-53FB-AF3E-96CDD38C8520.dita"><linktext>Physical |
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Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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RAM Defragmentation</linktext></link> |
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Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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<link href="GUID-C376486D-B9BF-5D00-8B1A-1527FC1F83AD.dita"><linktext>RAM Zone |
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Tutorial</linktext></link> |
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</related-links></concept> |