---

yaml
---
r: 87958
b: refs/heads/master
c: 688dad4
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7731ce63d9a863c987dd87b0425451fff0e6cdc8
+refs/heads/master: 688dad4f4c9004fcaa4cadad167b064342be5d63

trunk/Documentation/00-INDEX

@@ -225,6 +225,8 @@ kprobes.txt
 	- documents the kernel probes debugging feature.
 kref.txt
 	- docs on adding reference counters (krefs) to kernel objects.
+laptop-mode.txt
+	- how to conserve battery power using laptop-mode.
 laptops/
 	- directory with laptop related info and laptop driver documentation.
 ldm.txt
@@ -299,8 +301,12 @@ pcmcia/
 	- info on the Linux PCMCIA driver.
 pi-futex.txt
 	- documentation on lightweight PI-futexes.
+pm.txt
+	- info on Linux power management support.
 pnp.txt
 	- Linux Plug and Play documentation.
+power_supply_class.txt
+	- Tells userspace about battery, UPS, AC or DC power supply properties
 power/
 	- directory with info on Linux PCI power management.
 powerpc/

trunk/Documentation/acpi/dsdt-override.txt

@@ -1,7 +1,15 @@
-Linux supports a method of overriding the BIOS DSDT:
+Linux supports two methods of overriding the BIOS DSDT:
 
 CONFIG_ACPI_CUSTOM_DSDT builds the image into the kernel.
 
-When to use this method is described in detail on the
+CONFIG_ACPI_CUSTOM_DSDT_INITRD adds the image to the initrd.
+
+When to use these methods is described in detail on the
 Linux/ACPI home page:
 http://www.lesswatts.org/projects/acpi/overridingDSDT.php
+
+Note that if both options are used, the DSDT supplied
+by the INITRD method takes precedence.
+
+Documentation/initramfs-add-dsdt.sh is provided for convenience
+for use with the CONFIG_ACPI_CUSTOM_DSDT_INITRD method.

trunk/Documentation/acpi/initramfs-add-dsdt.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+# Adds a DSDT file to the initrd (if it's an initramfs)
+# first argument is the name of archive
+# second argument is the name of the file to add
+# The file will be copied as /DSDT.aml
+
+# 20060126: fix "Premature end of file" with some old cpio (Roland Robic)
+# 20060205: this time it should really work
+
+# check the arguments
+if [ $# -ne 2 ]; then
+	program_name=$(basename $0)
+	echo "\
+$program_name: too few arguments
+Usage: $program_name initrd-name.img DSDT-to-add.aml
+Adds a DSDT file to an initrd (in initramfs format)
+
+  initrd-name.img: filename of the initrd in initramfs format
+  DSDT-to-add.aml: filename of the DSDT file to add
+  " 1>&2
+    exit 1
+fi
+
+# we should check it's an initramfs
+
+tempcpio=$(mktemp -d)
+# cleanup on exit, hangup, interrupt, quit, termination
+trap 'rm -rf $tempcpio' 0 1 2 3 15
+
+# extract the archive
+gunzip -c "$1" > "$tempcpio"/initramfs.cpio || exit 1
+
+# copy the DSDT file at the root of the directory so that we can call it "/DSDT.aml"
+cp -f "$2" "$tempcpio"/DSDT.aml
+
+# add the file
+cd "$tempcpio"
+(echo DSDT.aml | cpio --quiet -H newc -o -A -O "$tempcpio"/initramfs.cpio) || exit 1
+cd "$OLDPWD"
+
+# re-compress the archive
+gzip -c "$tempcpio"/initramfs.cpio > "$1"
+

trunk/Documentation/feature-removal-schedule.txt

@@ -172,6 +172,16 @@ Who:	Len Brown <len.brown@intel.com>
 
 ---------------------------
 
+What:	ide-tape driver
+When:	July 2008
+Files:	drivers/ide/ide-tape.c
+Why:	This driver might not have any users anymore and maintaining it for no
+	reason is an effort no one wants to make.
+Who:	Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>, Borislav Petkov
+	<petkovbb@googlemail.com>
+
+---------------------------
+
 What: libata spindown skipping and warning
 When: Dec 2008
 Why:  Some halt(8) implementations synchronize caches for and spin

trunk/Documentation/filesystems/proc.txt

@@ -1506,13 +1506,13 @@ laptop_mode
 -----------
 
 laptop_mode is a knob that controls "laptop mode". All the things that are
-controlled by this knob are discussed in Documentation/laptops/laptop-mode.txt.
+controlled by this knob are discussed in Documentation/laptop-mode.txt.
 
 block_dump
 ----------
 
 block_dump enables block I/O debugging when set to a nonzero value. More
-information on block I/O debugging is in Documentation/laptops/laptop-mode.txt.
+information on block I/O debugging is in Documentation/laptop-mode.txt.
 
 swap_token_timeout
 ------------------

trunk/Documentation/hw_random.txt

@@ -1,26 +1,33 @@
+	Hardware driver for Intel/AMD/VIA Random Number Generators (RNG)
+	Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
+	Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
+
 Introduction:
 
-	The hw_random framework is software that makes use of a
+	The hw_random device driver is software that makes use of a
 	special hardware feature on your CPU or motherboard,
-	a Random Number Generator (RNG).  The software has two parts:
-	a core providing the /dev/hw_random character device and its
-	sysfs support, plus a hardware-specific driver that plugs
-	into that core.
+	a Random Number Generator (RNG).
 
-	To make the most effective use of these mechanisms, you
+	In order to make effective use of this device driver, you
 	should download the support software as well.  Download the
 	latest version of the "rng-tools" package from the
 	hw_random driver's official Web site:
 
 		http://sourceforge.net/projects/gkernel/
 
-	Those tools use /dev/hw_random to fill the kernel entropy pool,
-	which is used internally and exported by the /dev/urandom and
-	/dev/random special files.
+About the Intel RNG hardware, from the firmware hub datasheet:
+
+	The Firmware Hub integrates a Random Number Generator (RNG)
+	using thermal noise generated from inherently random quantum
+	mechanical properties of silicon. When not generating new random
+	bits the RNG circuitry will enter a low power state. Intel will
+	provide a binary software driver to give third party software
+	access to our RNG for use as a security feature. At this time,
+	the RNG is only to be used with a system in an OS-present state.
 
 Theory of operation:
 
-	CHARACTER DEVICE.  Using the standard open()
+	Character driver.  Using the standard open()
 	and read() system calls, you can read random data from
 	the hardware RNG device.  This data is NOT CHECKED by any
 	fitness tests, and could potentially be bogus (if the
@@ -29,37 +36,9 @@ Theory of operation:
 	a security-conscious person would run fitness tests on the
 	data before assuming it is truly random.
 
-	The rng-tools package uses such tests in "rngd", and lets you
-	run them by hand with a "rngtest" utility.
-
-	/dev/hw_random is char device major 10, minor 183.
-
-	CLASS DEVICE.  There is a /sys/class/misc/hw_random node with
-	two unique attributes, "rng_available" and "rng_current".  The
-	"rng_available" attribute lists the hardware-specific drivers
-	available, while "rng_current" lists the one which is currently
-	connected to /dev/hw_random.  If your system has more than one
-	RNG available, you may change the one used by writing a name from
-	the list in "rng_available" into "rng_current".
-
-==========================================================================
-
-	Hardware driver for Intel/AMD/VIA Random Number Generators (RNG)
-	Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
-	Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
-
-
-About the Intel RNG hardware, from the firmware hub datasheet:
-
-	The Firmware Hub integrates a Random Number Generator (RNG)
-	using thermal noise generated from inherently random quantum
-	mechanical properties of silicon. When not generating new random
-	bits the RNG circuitry will enter a low power state. Intel will
-	provide a binary software driver to give third party software
-	access to our RNG for use as a security feature. At this time,
-	the RNG is only to be used with a system in an OS-present state.
+	/dev/hwrandom is char device major 10, minor 183.
 
-Intel RNG Driver notes:
+Driver notes:
 
 	* FIXME: support poll(2)
 

trunk/Documentation/i386/IO-APIC.txt

@@ -70,7 +70,7 @@ Every PCI card emits a PCI IRQ, which can be INTA, INTB, INTC or INTD:
 
 These INTA-D PCI IRQs are always 'local to the card', their real meaning
 depends on which slot they are in. If you look at the daisy chaining diagram,
-a card in slot4, issuing INTA IRQ, it will end up as a signal on PIRQ4 of
+a card in slot4, issuing INTA IRQ, it will end up as a signal on PIRQ2 of
 the PCI chipset. Most cards issue INTA, this creates optimal distribution
 between the PIRQ lines. (distributing IRQ sources properly is not a
 necessity, PCI IRQs can be shared at will, but it's a good for performance

trunk/Documentation/ide/ide.txt

@@ -105,7 +105,7 @@ Drives are normally found by auto-probing and/or examining the CMOS/BIOS data.
 For really weird situations, the apparent (fdisk) geometry can also be specified
 on the kernel "command line" using LILO.  The format of such lines is:
 
-	hdx=cyls,heads,sects
+	hdx=cyls,heads,sects,wpcom,irq
 or	hdx=cdrom
 
 where hdx can be any of hda through hdh, Three values are required
@@ -214,9 +214,9 @@ driver using the "options=" keyword to insmod, while replacing any ',' with
 Summary of ide driver parameters for kernel command line
 --------------------------------------------------------
 
- "hdx="  is recognized for all "x" from "a" to "u", such as "hdc".
+ "hdx="  is recognized for all "x" from "a" to "h", such as "hdc".
 
- "idex=" is recognized for all "x" from "0" to "9", such as "ide1".
+ "idex=" is recognized for all "x" from "0" to "3", such as "ide1".
 
  "hdx=noprobe"		: drive may be present, but do not probe for it
 
@@ -228,6 +228,13 @@ Summary of ide driver parameters for kernel command line
 
  "hdx=cyl,head,sect"	: disk drive is present, with specified geometry
 
+ "hdx=remap"		: remap access of sector 0 to sector 1 (for EZDrive)
+
+ "hdx=remap63"		: remap the drive: add 63 to all sector numbers
+			  (for DM OnTrack)
+
+ "idex=noautotune"	: driver will NOT attempt to tune interface speed
+
  "hdx=autotune"		: driver will attempt to tune interface speed
 			  to the fastest PIO mode supported,
 			  if possible for this drive only.
@@ -237,6 +244,10 @@ Summary of ide driver parameters for kernel command line
 
  "hdx=nodma"		: disallow DMA
 
+ "hdx=scsi"		: the return of the ide-scsi flag, this is useful for
+ 			  allowing ide-floppy, ide-tape, and ide-cdrom|writers
+ 			  to use ide-scsi emulation on a device specific option.
+
  "idebus=xx"		: inform IDE driver of VESA/PCI bus speed in MHz,
 			  where "xx" is between 20 and 66 inclusive,
 			  used when tuning chipset PIO modes.
@@ -271,6 +282,10 @@ Summary of ide driver parameters for kernel command line
 
  "ide=reverse"		: formerly called to pci sub-system, but now local.
 
+The following are valid ONLY on ide0, which usually corresponds
+to the first ATA interface found on the particular host, and the defaults for
+the base,ctl ports must not be altered.
+
  "ide=doubler"		: probe/support IDE doublers on Amiga
 
 There may be more options than shown -- use the source, Luke!