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Conflicts:
	security/keys/internal.h
	security/keys/process_keys.c
	security/keys/request_key.c

Fixed conflicts above by using the non 'tsk' versions.

Signed-off-by: James Morris <[email protected]>
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James Morris committed Nov 14, 2008
2 parents 3a3b7ce + 58e20d8 commit 2b82892
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2 changes: 2 additions & 0 deletions Documentation/00-INDEX
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Expand Up @@ -290,6 +290,8 @@ powerpc/
- directory with info on using Linux with the PowerPC.
preempt-locking.txt
- info on locking under a preemptive kernel.
printk-formats.txt
- how to get printk format specifiers right
prio_tree.txt
- info on radix-priority-search-tree use for indexing vmas.
ramdisk.txt
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88 changes: 88 additions & 0 deletions Documentation/ABI/testing/sysfs-c2port
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What: /sys/class/c2port/
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/ directory will contain files and
directories that will provide a unified interface to
the C2 port interface.

What: /sys/class/c2port/c2portX
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/ directory is related to X-th
C2 port into the system. Each directory will contain files to
manage and control its C2 port.

What: /sys/class/c2port/c2portX/access
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/access file enable the access
to the C2 port from the system. No commands can be sent
till this entry is set to 0.

What: /sys/class/c2port/c2portX/dev_id
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/dev_id file show the device ID
of the connected micro.

What: /sys/class/c2port/c2portX/flash_access
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/flash_access file enable the
access to the on-board flash of the connected micro.
No commands can be sent till this entry is set to 0.

What: /sys/class/c2port/c2portX/flash_block_size
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/flash_block_size file show
the on-board flash block size of the connected micro.

What: /sys/class/c2port/c2portX/flash_blocks_num
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/flash_blocks_num file show
the on-board flash blocks number of the connected micro.

What: /sys/class/c2port/c2portX/flash_data
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/flash_data file export
the content of the on-board flash of the connected micro.

What: /sys/class/c2port/c2portX/flash_erase
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/flash_erase file execute
the "erase" command on the on-board flash of the connected
micro.

What: /sys/class/c2port/c2portX/flash_erase
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/flash_erase file show the
on-board flash size of the connected micro.

What: /sys/class/c2port/c2portX/reset
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/reset file execute a "reset"
command on the connected micro.

What: /sys/class/c2port/c2portX/rev_id
Date: October 2008
Contact: Rodolfo Giometti <[email protected]>
Description:
The /sys/class/c2port/c2portX/rev_id file show the revision ID
of the connected micro.
16 changes: 8 additions & 8 deletions Documentation/ABI/testing/sysfs-firmware-acpi
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Expand Up @@ -89,7 +89,7 @@ Description:

error - an interrupt that can't be accounted for above.

invalid: it's either a wakeup GPE or a GPE/Fixed Event that
invalid: it's either a GPE or a Fixed Event that
doesn't have an event handler.

disable: the GPE/Fixed Event is valid but disabled.
Expand Down Expand Up @@ -117,30 +117,30 @@ Description:
and other user space applications so that the machine won't shutdown
when pressing the power button.
# cat ff_pwr_btn
0
0 enabled
# press the power button for 3 times;
# cat ff_pwr_btn
3
3 enabled
# echo disable > ff_pwr_btn
# cat ff_pwr_btn
disable
3 disabled
# press the power button for 3 times;
# cat ff_pwr_btn
disable
3 disabled
# echo enable > ff_pwr_btn
# cat ff_pwr_btn
4
4 enabled
/*
* this is because the status bit is set even if the enable bit is cleared,
* and it triggers an ACPI fixed event when the enable bit is set again
*/
# press the power button for 3 times;
# cat ff_pwr_btn
7
7 enabled
# echo disable > ff_pwr_btn
# press the power button for 3 times;
# echo clear > ff_pwr_btn /* clear the status bit */
# echo disable > ff_pwr_btn
# cat ff_pwr_btn
7
7 enabled

148 changes: 148 additions & 0 deletions Documentation/acpi/debug.txt
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ACPI Debug Output


The ACPI CA, the Linux ACPI core, and some ACPI drivers can generate debug
output. This document describes how to use this facility.

Compile-time configuration
--------------------------

ACPI debug output is globally enabled by CONFIG_ACPI_DEBUG. If this config
option is turned off, the debug messages are not even built into the
kernel.

Boot- and run-time configuration
--------------------------------

When CONFIG_ACPI_DEBUG=y, you can select the component and level of messages
you're interested in. At boot-time, use the acpi.debug_layer and
acpi.debug_level kernel command line options. After boot, you can use the
debug_layer and debug_level files in /sys/module/acpi/parameters/ to control
the debug messages.

debug_layer (component)
-----------------------

The "debug_layer" is a mask that selects components of interest, e.g., a
specific driver or part of the ACPI interpreter. To build the debug_layer
bitmask, look for the "#define _COMPONENT" in an ACPI source file.

You can set the debug_layer mask at boot-time using the acpi.debug_layer
command line argument, and you can change it after boot by writing values
to /sys/module/acpi/parameters/debug_layer.

The possible components are defined in include/acpi/acoutput.h and
include/acpi/acpi_drivers.h. Reading /sys/module/acpi/parameters/debug_layer
shows the supported mask values, currently these:

ACPI_UTILITIES 0x00000001
ACPI_HARDWARE 0x00000002
ACPI_EVENTS 0x00000004
ACPI_TABLES 0x00000008
ACPI_NAMESPACE 0x00000010
ACPI_PARSER 0x00000020
ACPI_DISPATCHER 0x00000040
ACPI_EXECUTER 0x00000080
ACPI_RESOURCES 0x00000100
ACPI_CA_DEBUGGER 0x00000200
ACPI_OS_SERVICES 0x00000400
ACPI_CA_DISASSEMBLER 0x00000800
ACPI_COMPILER 0x00001000
ACPI_TOOLS 0x00002000
ACPI_BUS_COMPONENT 0x00010000
ACPI_AC_COMPONENT 0x00020000
ACPI_BATTERY_COMPONENT 0x00040000
ACPI_BUTTON_COMPONENT 0x00080000
ACPI_SBS_COMPONENT 0x00100000
ACPI_FAN_COMPONENT 0x00200000
ACPI_PCI_COMPONENT 0x00400000
ACPI_POWER_COMPONENT 0x00800000
ACPI_CONTAINER_COMPONENT 0x01000000
ACPI_SYSTEM_COMPONENT 0x02000000
ACPI_THERMAL_COMPONENT 0x04000000
ACPI_MEMORY_DEVICE_COMPONENT 0x08000000
ACPI_VIDEO_COMPONENT 0x10000000
ACPI_PROCESSOR_COMPONENT 0x20000000

debug_level
-----------

The "debug_level" is a mask that selects different types of messages, e.g.,
those related to initialization, method execution, informational messages, etc.
To build debug_level, look at the level specified in an ACPI_DEBUG_PRINT()
statement.

The ACPI interpreter uses several different levels, but the Linux
ACPI core and ACPI drivers generally only use ACPI_LV_INFO.

You can set the debug_level mask at boot-time using the acpi.debug_level
command line argument, and you can change it after boot by writing values
to /sys/module/acpi/parameters/debug_level.

The possible levels are defined in include/acpi/acoutput.h. Reading
/sys/module/acpi/parameters/debug_level shows the supported mask values,
currently these:

ACPI_LV_INIT 0x00000001
ACPI_LV_DEBUG_OBJECT 0x00000002
ACPI_LV_INFO 0x00000004
ACPI_LV_INIT_NAMES 0x00000020
ACPI_LV_PARSE 0x00000040
ACPI_LV_LOAD 0x00000080
ACPI_LV_DISPATCH 0x00000100
ACPI_LV_EXEC 0x00000200
ACPI_LV_NAMES 0x00000400
ACPI_LV_OPREGION 0x00000800
ACPI_LV_BFIELD 0x00001000
ACPI_LV_TABLES 0x00002000
ACPI_LV_VALUES 0x00004000
ACPI_LV_OBJECTS 0x00008000
ACPI_LV_RESOURCES 0x00010000
ACPI_LV_USER_REQUESTS 0x00020000
ACPI_LV_PACKAGE 0x00040000
ACPI_LV_ALLOCATIONS 0x00100000
ACPI_LV_FUNCTIONS 0x00200000
ACPI_LV_OPTIMIZATIONS 0x00400000
ACPI_LV_MUTEX 0x01000000
ACPI_LV_THREADS 0x02000000
ACPI_LV_IO 0x04000000
ACPI_LV_INTERRUPTS 0x08000000
ACPI_LV_AML_DISASSEMBLE 0x10000000
ACPI_LV_VERBOSE_INFO 0x20000000
ACPI_LV_FULL_TABLES 0x40000000
ACPI_LV_EVENTS 0x80000000

Examples
--------

For example, drivers/acpi/bus.c contains this:

#define _COMPONENT ACPI_BUS_COMPONENT
...
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device insertion detected\n"));

To turn on this message, set the ACPI_BUS_COMPONENT bit in acpi.debug_layer
and the ACPI_LV_INFO bit in acpi.debug_level. (The ACPI_DEBUG_PRINT
statement uses ACPI_DB_INFO, which is macro based on the ACPI_LV_INFO
definition.)

Enable all AML "Debug" output (stores to the Debug object while interpreting
AML) during boot:

acpi.debug_layer=0xffffffff acpi.debug_level=0x2

Enable PCI and PCI interrupt routing debug messages:

acpi.debug_layer=0x400000 acpi.debug_level=0x4

Enable all ACPI hardware-related messages:

acpi.debug_layer=0x2 acpi.debug_level=0xffffffff

Enable all ACPI_DB_INFO messages after boot:

# echo 0x4 > /sys/module/acpi/parameters/debug_level

Show all valid component values:

# cat /sys/module/acpi/parameters/debug_layer
90 changes: 90 additions & 0 deletions Documentation/c2port.txt
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C2 port support
---------------

(C) Copyright 2007 Rodolfo Giometti <[email protected]>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

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.



Overview
--------

This driver implements the support for Linux of Silicon Labs (Silabs)
C2 Interface used for in-system programming of micro controllers.

By using this driver you can reprogram the in-system flash without EC2
or EC3 debug adapter. This solution is also useful in those systems
where the micro controller is connected via special GPIOs pins.

References
----------

The C2 Interface main references are at (http://www.silabs.com)
Silicon Laboratories site], see:

- AN127: FLASH Programming via the C2 Interface at
http://www.silabs.com/public/documents/tpub_doc/anote/Microcontrollers/Small_Form_Factor/en/an127.pdf, and

- C2 Specification at
http://www.silabs.com/public/documents/tpub_doc/spec/Microcontrollers/en/C2spec.pdf,

however it implements a two wire serial communication protocol (bit
banging) designed to enable in-system programming, debugging, and
boundary-scan testing on low pin-count Silicon Labs devices. Currently
this code supports only flash programming but extensions are easy to
add.

Using the driver
----------------

Once the driver is loaded you can use sysfs support to get C2port's
info or read/write in-system flash.

# ls /sys/class/c2port/c2port0/
access flash_block_size flash_erase rev_id
dev_id flash_blocks_num flash_size subsystem/
flash_access flash_data reset uevent

Initially the C2port access is disabled since you hardware may have
such lines multiplexed with other devices so, to get access to the
C2port, you need the command:

# echo 1 > /sys/class/c2port/c2port0/access

after that you should read the device ID and revision ID of the
connected micro controller:

# cat /sys/class/c2port/c2port0/dev_id
8
# cat /sys/class/c2port/c2port0/rev_id
1

However, for security reasons, the in-system flash access in not
enabled yet, to do so you need the command:

# echo 1 > /sys/class/c2port/c2port0/flash_access

After that you can read the whole flash:

# cat /sys/class/c2port/c2port0/flash_data > image

erase it:

# echo 1 > /sys/class/c2port/c2port0/flash_erase

and write it:

# cat image > /sys/class/c2port/c2port0/flash_data

after writing you have to reset the device to execute the new code:

# echo 1 > /sys/class/c2port/c2port0/reset
3 changes: 3 additions & 0 deletions Documentation/cciss.txt
Original file line number Diff line number Diff line change
Expand Up @@ -21,11 +21,14 @@ This driver is known to work with the following cards:
* SA E200
* SA E200i
* SA E500
* SA P700m
* SA P212
* SA P410
* SA P410i
* SA P411
* SA P812
* SA P712m
* SA P711m

Detecting drive failures:
-------------------------
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