forked from Minki/linux
kernel-api.tmpl: convert it to ReST
Brainless conversion of genericirq.tmpl book to ReST, via Documentation/sphinx/tmplcvt Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab
Jonathan Corbet
parent
76d40fae13
commit
baca8a0c99
@ -9,7 +9,7 @@
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DOCBOOKS := z8530book.xml \
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kernel-hacking.xml kernel-locking.xml \
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writing_usb_driver.xml networking.xml \
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kernel-api.xml filesystems.xml lsm.xml kgdb.xml \
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filesystems.xml lsm.xml kgdb.xml \
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gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
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s390-drivers.xml scsi.xml \
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sh.xml w1.xml \
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@ -1,331 +0,0 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
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<book id="LinuxKernelAPI">
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<bookinfo>
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<title>The Linux Kernel API</title>
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<legalnotice>
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<para>
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This documentation is free software; you can redistribute
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it and/or modify it under the terms of the GNU General Public
|
||||
License as published by the Free Software Foundation; either
|
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version 2 of the License, or (at your option) any later
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version.
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</para>
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|
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<para>
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This program is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied
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warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
|
||||
</para>
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||||
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<para>
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||||
You should have received a copy of the GNU General Public
|
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License along with this program; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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MA 02111-1307 USA
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</para>
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<para>
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For more details see the file COPYING in the source
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distribution of Linux.
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</para>
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</legalnotice>
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</bookinfo>
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<toc></toc>
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<chapter id="adt">
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<title>Data Types</title>
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<sect1><title>Doubly Linked Lists</title>
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!Iinclude/linux/list.h
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</sect1>
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</chapter>
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<chapter id="libc">
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<title>Basic C Library Functions</title>
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<para>
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||||
When writing drivers, you cannot in general use routines which are
|
||||
from the C Library. Some of the functions have been found generally
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useful and they are listed below. The behaviour of these functions
|
||||
may vary slightly from those defined by ANSI, and these deviations
|
||||
are noted in the text.
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||||
</para>
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<sect1><title>String Conversions</title>
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!Elib/vsprintf.c
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!Finclude/linux/kernel.h kstrtol
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!Finclude/linux/kernel.h kstrtoul
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!Elib/kstrtox.c
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</sect1>
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<sect1><title>String Manipulation</title>
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<!-- All functions are exported at now
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X!Ilib/string.c
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-->
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!Elib/string.c
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</sect1>
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<sect1><title>Bit Operations</title>
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!Iarch/x86/include/asm/bitops.h
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</sect1>
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</chapter>
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<chapter id="kernel-lib">
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<title>Basic Kernel Library Functions</title>
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<para>
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The Linux kernel provides more basic utility functions.
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</para>
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<sect1><title>Bitmap Operations</title>
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!Elib/bitmap.c
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!Ilib/bitmap.c
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</sect1>
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<sect1><title>Command-line Parsing</title>
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!Elib/cmdline.c
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</sect1>
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<sect1 id="crc"><title>CRC Functions</title>
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!Elib/crc7.c
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!Elib/crc16.c
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!Elib/crc-itu-t.c
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!Elib/crc32.c
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!Elib/crc-ccitt.c
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</sect1>
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|
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<sect1 id="idr"><title>idr/ida Functions</title>
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!Pinclude/linux/idr.h idr sync
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!Plib/idr.c IDA description
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!Elib/idr.c
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</sect1>
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</chapter>
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<chapter id="mm">
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<title>Memory Management in Linux</title>
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<sect1><title>The Slab Cache</title>
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||||
!Iinclude/linux/slab.h
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!Emm/slab.c
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!Emm/util.c
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</sect1>
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<sect1><title>User Space Memory Access</title>
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!Iarch/x86/include/asm/uaccess_32.h
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!Earch/x86/lib/usercopy_32.c
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</sect1>
|
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<sect1><title>More Memory Management Functions</title>
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!Emm/readahead.c
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!Emm/filemap.c
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!Emm/memory.c
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!Emm/vmalloc.c
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!Imm/page_alloc.c
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!Emm/mempool.c
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!Emm/dmapool.c
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!Emm/page-writeback.c
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!Emm/truncate.c
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</sect1>
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</chapter>
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<chapter id="ipc">
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<title>Kernel IPC facilities</title>
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<sect1><title>IPC utilities</title>
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!Iipc/util.c
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</sect1>
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</chapter>
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<chapter id="kfifo">
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<title>FIFO Buffer</title>
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<sect1><title>kfifo interface</title>
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!Iinclude/linux/kfifo.h
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</sect1>
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</chapter>
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<chapter id="relayfs">
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<title>relay interface support</title>
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<para>
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Relay interface support
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is designed to provide an efficient mechanism for tools and
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facilities to relay large amounts of data from kernel space to
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user space.
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</para>
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<sect1><title>relay interface</title>
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!Ekernel/relay.c
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!Ikernel/relay.c
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</sect1>
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</chapter>
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<chapter id="modload">
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<title>Module Support</title>
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<sect1><title>Module Loading</title>
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!Ekernel/kmod.c
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</sect1>
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<sect1><title>Inter Module support</title>
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<para>
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Refer to the file kernel/module.c for more information.
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</para>
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<!-- FIXME: Removed for now since no structured comments in source
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X!Ekernel/module.c
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-->
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</sect1>
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</chapter>
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<chapter id="hardware">
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<title>Hardware Interfaces</title>
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<sect1><title>Interrupt Handling</title>
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!Ekernel/irq/manage.c
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</sect1>
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<sect1><title>DMA Channels</title>
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!Ekernel/dma.c
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</sect1>
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<sect1><title>Resources Management</title>
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!Ikernel/resource.c
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!Ekernel/resource.c
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</sect1>
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<sect1><title>MTRR Handling</title>
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!Earch/x86/kernel/cpu/mtrr/main.c
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</sect1>
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<sect1><title>PCI Support Library</title>
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!Edrivers/pci/pci.c
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!Edrivers/pci/pci-driver.c
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!Edrivers/pci/remove.c
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!Edrivers/pci/search.c
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!Edrivers/pci/msi.c
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!Edrivers/pci/bus.c
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!Edrivers/pci/access.c
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!Edrivers/pci/irq.c
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!Edrivers/pci/htirq.c
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<!-- FIXME: Removed for now since no structured comments in source
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X!Edrivers/pci/hotplug.c
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-->
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!Edrivers/pci/probe.c
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!Edrivers/pci/slot.c
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!Edrivers/pci/rom.c
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!Edrivers/pci/iov.c
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!Idrivers/pci/pci-sysfs.c
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</sect1>
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<sect1><title>PCI Hotplug Support Library</title>
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!Edrivers/pci/hotplug/pci_hotplug_core.c
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</sect1>
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</chapter>
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<chapter id="firmware">
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<title>Firmware Interfaces</title>
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<sect1><title>DMI Interfaces</title>
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!Edrivers/firmware/dmi_scan.c
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</sect1>
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<sect1><title>EDD Interfaces</title>
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!Idrivers/firmware/edd.c
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</sect1>
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</chapter>
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<chapter id="security">
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<title>Security Framework</title>
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!Isecurity/security.c
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!Esecurity/inode.c
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</chapter>
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<chapter id="audit">
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<title>Audit Interfaces</title>
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!Ekernel/audit.c
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!Ikernel/auditsc.c
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!Ikernel/auditfilter.c
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</chapter>
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<chapter id="accounting">
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<title>Accounting Framework</title>
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!Ikernel/acct.c
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</chapter>
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<chapter id="blkdev">
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<title>Block Devices</title>
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!Eblock/blk-core.c
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!Iblock/blk-core.c
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!Eblock/blk-map.c
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!Iblock/blk-sysfs.c
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!Eblock/blk-settings.c
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!Eblock/blk-exec.c
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!Eblock/blk-flush.c
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!Eblock/blk-lib.c
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!Eblock/blk-tag.c
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!Iblock/blk-tag.c
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!Eblock/blk-integrity.c
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!Ikernel/trace/blktrace.c
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!Iblock/genhd.c
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!Eblock/genhd.c
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</chapter>
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<chapter id="chrdev">
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<title>Char devices</title>
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!Efs/char_dev.c
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</chapter>
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<chapter id="miscdev">
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<title>Miscellaneous Devices</title>
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!Edrivers/char/misc.c
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</chapter>
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<chapter id="clk">
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<title>Clock Framework</title>
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<para>
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The clock framework defines programming interfaces to support
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software management of the system clock tree.
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This framework is widely used with System-On-Chip (SOC) platforms
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to support power management and various devices which may need
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custom clock rates.
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Note that these "clocks" don't relate to timekeeping or real
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time clocks (RTCs), each of which have separate frameworks.
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These <structname>struct clk</structname> instances may be used
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to manage for example a 96 MHz signal that is used to shift bits
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into and out of peripherals or busses, or otherwise trigger
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synchronous state machine transitions in system hardware.
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</para>
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<para>
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Power management is supported by explicit software clock gating:
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unused clocks are disabled, so the system doesn't waste power
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changing the state of transistors that aren't in active use.
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On some systems this may be backed by hardware clock gating,
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where clocks are gated without being disabled in software.
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Sections of chips that are powered but not clocked may be able
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to retain their last state.
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This low power state is often called a <emphasis>retention
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mode</emphasis>.
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This mode still incurs leakage currents, especially with finer
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circuit geometries, but for CMOS circuits power is mostly used
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by clocked state changes.
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</para>
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<para>
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Power-aware drivers only enable their clocks when the device
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they manage is in active use. Also, system sleep states often
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differ according to which clock domains are active: while a
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"standby" state may allow wakeup from several active domains, a
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"mem" (suspend-to-RAM) state may require a more wholesale shutdown
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of clocks derived from higher speed PLLs and oscillators, limiting
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the number of possible wakeup event sources. A driver's suspend
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method may need to be aware of system-specific clock constraints
|
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on the target sleep state.
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</para>
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<para>
|
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Some platforms support programmable clock generators. These
|
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can be used by external chips of various kinds, such as other
|
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CPUs, multimedia codecs, and devices with strict requirements
|
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for interface clocking.
|
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</para>
|
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|
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!Iinclude/linux/clk.h
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</chapter>
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|
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</book>
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@ -11,6 +11,7 @@ Core utilities
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.. toctree::
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:maxdepth: 1
|
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kernel-api
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assoc_array
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atomic_ops
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cpu_hotplug
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419
Documentation/core-api/kernel-api.rst
Normal file
419
Documentation/core-api/kernel-api.rst
Normal file
@ -0,0 +1,419 @@
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====================
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The Linux Kernel API
|
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====================
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|
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Data Types
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==========
|
||||
|
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Doubly Linked Lists
|
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-------------------
|
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|
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.. kernel-doc:: include/linux/list.h
|
||||
:internal:
|
||||
|
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Basic C Library Functions
|
||||
=========================
|
||||
|
||||
When writing drivers, you cannot in general use routines which are from
|
||||
the C Library. Some of the functions have been found generally useful
|
||||
and they are listed below. The behaviour of these functions may vary
|
||||
slightly from those defined by ANSI, and these deviations are noted in
|
||||
the text.
|
||||
|
||||
String Conversions
|
||||
------------------
|
||||
|
||||
.. kernel-doc:: lib/vsprintf.c
|
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:export:
|
||||
|
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.. kernel-doc:: include/linux/kernel.h
|
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:functions: kstrtol
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||||
|
||||
.. kernel-doc:: include/linux/kernel.h
|
||||
:functions: kstrtoul
|
||||
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.. kernel-doc:: lib/kstrtox.c
|
||||
:export:
|
||||
|
||||
String Manipulation
|
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-------------------
|
||||
|
||||
.. kernel-doc:: lib/string.c
|
||||
:export:
|
||||
|
||||
Bit Operations
|
||||
--------------
|
||||
|
||||
.. kernel-doc:: arch/x86/include/asm/bitops.h
|
||||
:internal:
|
||||
|
||||
Basic Kernel Library Functions
|
||||
==============================
|
||||
|
||||
The Linux kernel provides more basic utility functions.
|
||||
|
||||
Bitmap Operations
|
||||
-----------------
|
||||
|
||||
.. kernel-doc:: lib/bitmap.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: lib/bitmap.c
|
||||
:internal:
|
||||
|
||||
Command-line Parsing
|
||||
--------------------
|
||||
|
||||
.. kernel-doc:: lib/cmdline.c
|
||||
:export:
|
||||
|
||||
CRC Functions
|
||||
-------------
|
||||
|
||||
.. kernel-doc:: lib/crc7.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: lib/crc16.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: lib/crc-itu-t.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: lib/crc32.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: lib/crc-ccitt.c
|
||||
:export:
|
||||
|
||||
idr/ida Functions
|
||||
-----------------
|
||||
|
||||
.. kernel-doc:: include/linux/idr.h
|
||||
:doc: idr sync
|
||||
|
||||
.. kernel-doc:: lib/idr.c
|
||||
:doc: IDA description
|
||||
|
||||
.. kernel-doc:: lib/idr.c
|
||||
:export:
|
||||
|
||||
Memory Management in Linux
|
||||
==========================
|
||||
|
||||
The Slab Cache
|
||||
--------------
|
||||
|
||||
.. kernel-doc:: include/linux/slab.h
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: mm/slab.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: mm/util.c
|
||||
:export:
|
||||
|
||||
User Space Memory Access
|
||||
------------------------
|
||||
|
||||
.. kernel-doc:: arch/x86/include/asm/uaccess_32.h
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: arch/x86/lib/usercopy_32.c
|
||||
:export:
|
||||
|
||||
More Memory Management Functions
|
||||
--------------------------------
|
||||
|
||||
.. kernel-doc:: mm/readahead.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: mm/filemap.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: mm/memory.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: mm/vmalloc.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: mm/page_alloc.c
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: mm/mempool.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: mm/dmapool.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: mm/page-writeback.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: mm/truncate.c
|
||||
:export:
|
||||
|
||||
Kernel IPC facilities
|
||||
=====================
|
||||
|
||||
IPC utilities
|
||||
-------------
|
||||
|
||||
.. kernel-doc:: ipc/util.c
|
||||
:internal:
|
||||
|
||||
FIFO Buffer
|
||||
===========
|
||||
|
||||
kfifo interface
|
||||
---------------
|
||||
|
||||
.. kernel-doc:: include/linux/kfifo.h
|
||||
:internal:
|
||||
|
||||
relay interface support
|
||||
=======================
|
||||
|
||||
Relay interface support is designed to provide an efficient mechanism
|
||||
for tools and facilities to relay large amounts of data from kernel
|
||||
space to user space.
|
||||
|
||||
relay interface
|
||||
---------------
|
||||
|
||||
.. kernel-doc:: kernel/relay.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: kernel/relay.c
|
||||
:internal:
|
||||
|
||||
Module Support
|
||||
==============
|
||||
|
||||
Module Loading
|
||||
--------------
|
||||
|
||||
.. kernel-doc:: kernel/kmod.c
|
||||
:export:
|
||||
|
||||
Inter Module support
|
||||
--------------------
|
||||
|
||||
Refer to the file kernel/module.c for more information.
|
||||
|
||||
Hardware Interfaces
|
||||
===================
|
||||
|
||||
Interrupt Handling
|
||||
------------------
|
||||
|
||||
.. kernel-doc:: kernel/irq/manage.c
|
||||
:export:
|
||||
|
||||
DMA Channels
|
||||
------------
|
||||
|
||||
.. kernel-doc:: kernel/dma.c
|
||||
:export:
|
||||
|
||||
Resources Management
|
||||
--------------------
|
||||
|
||||
.. kernel-doc:: kernel/resource.c
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: kernel/resource.c
|
||||
:export:
|
||||
|
||||
MTRR Handling
|
||||
-------------
|
||||
|
||||
.. kernel-doc:: arch/x86/kernel/cpu/mtrr/main.c
|
||||
:export:
|
||||
|
||||
PCI Support Library
|
||||
-------------------
|
||||
|
||||
.. kernel-doc:: drivers/pci/pci.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/pci-driver.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/remove.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/search.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/msi.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/bus.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/access.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/irq.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/htirq.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/probe.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/slot.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/rom.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/iov.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: drivers/pci/pci-sysfs.c
|
||||
:internal:
|
||||
|
||||
PCI Hotplug Support Library
|
||||
---------------------------
|
||||
|
||||
.. kernel-doc:: drivers/pci/hotplug/pci_hotplug_core.c
|
||||
:export:
|
||||
|
||||
Firmware Interfaces
|
||||
===================
|
||||
|
||||
DMI Interfaces
|
||||
--------------
|
||||
|
||||
.. kernel-doc:: drivers/firmware/dmi_scan.c
|
||||
:export:
|
||||
|
||||
EDD Interfaces
|
||||
--------------
|
||||
|
||||
.. kernel-doc:: drivers/firmware/edd.c
|
||||
:internal:
|
||||
|
||||
Security Framework
|
||||
==================
|
||||
|
||||
.. kernel-doc:: security/security.c
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: security/inode.c
|
||||
:export:
|
||||
|
||||
Audit Interfaces
|
||||
================
|
||||
|
||||
.. kernel-doc:: kernel/audit.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: kernel/auditsc.c
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: kernel/auditfilter.c
|
||||
:internal:
|
||||
|
||||
Accounting Framework
|
||||
====================
|
||||
|
||||
.. kernel-doc:: kernel/acct.c
|
||||
:internal:
|
||||
|
||||
Block Devices
|
||||
=============
|
||||
|
||||
.. kernel-doc:: block/blk-core.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: block/blk-core.c
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: block/blk-map.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: block/blk-sysfs.c
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: block/blk-settings.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: block/blk-exec.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: block/blk-flush.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: block/blk-lib.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: block/blk-tag.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: block/blk-tag.c
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: block/blk-integrity.c
|
||||
:export:
|
||||
|
||||
.. kernel-doc:: kernel/trace/blktrace.c
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: block/genhd.c
|
||||
:internal:
|
||||
|
||||
.. kernel-doc:: block/genhd.c
|
||||
:export:
|
||||
|
||||
Char devices
|
||||
============
|
||||
|
||||
.. kernel-doc:: fs/char_dev.c
|
||||
:export:
|
||||
|
||||
Miscellaneous Devices
|
||||
=====================
|
||||
|
||||
.. kernel-doc:: drivers/char/misc.c
|
||||
:export:
|
||||
|
||||
Clock Framework
|
||||
===============
|
||||
|
||||
The clock framework defines programming interfaces to support software
|
||||
management of the system clock tree. This framework is widely used with
|
||||
System-On-Chip (SOC) platforms to support power management and various
|
||||
devices which may need custom clock rates. Note that these "clocks"
|
||||
don't relate to timekeeping or real time clocks (RTCs), each of which
|
||||
have separate frameworks. These :c:type:`struct clk <clk>`
|
||||
instances may be used to manage for example a 96 MHz signal that is used
|
||||
to shift bits into and out of peripherals or busses, or otherwise
|
||||
trigger synchronous state machine transitions in system hardware.
|
||||
|
||||
Power management is supported by explicit software clock gating: unused
|
||||
clocks are disabled, so the system doesn't waste power changing the
|
||||
state of transistors that aren't in active use. On some systems this may
|
||||
be backed by hardware clock gating, where clocks are gated without being
|
||||
disabled in software. Sections of chips that are powered but not clocked
|
||||
may be able to retain their last state. This low power state is often
|
||||
called a *retention mode*. This mode still incurs leakage currents,
|
||||
especially with finer circuit geometries, but for CMOS circuits power is
|
||||
mostly used by clocked state changes.
|
||||
|
||||
Power-aware drivers only enable their clocks when the device they manage
|
||||
is in active use. Also, system sleep states often differ according to
|
||||
which clock domains are active: while a "standby" state may allow wakeup
|
||||
from several active domains, a "mem" (suspend-to-RAM) state may require
|
||||
a more wholesale shutdown of clocks derived from higher speed PLLs and
|
||||
oscillators, limiting the number of possible wakeup event sources. A
|
||||
driver's suspend method may need to be aware of system-specific clock
|
||||
constraints on the target sleep state.
|
||||
|
||||
Some platforms support programmable clock generators. These can be used
|
||||
by external chips of various kinds, such as other CPUs, multimedia
|
||||
codecs, and devices with strict requirements for interface clocking.
|
||||
|
||||
.. kernel-doc:: include/linux/clk.h
|
||||
:internal:
|
||||
Loading…
Reference in New Issue
Block a user