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提交 c032a2de 编写于 作者: I Ingo Molnar
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Merge branch 'x86/cleanups' into x86/irq 

[ merged x86/cleanups into x86/irq to enable a wider IRQ entry code
  patch to be applied, which depends on a cleanup patch in x86/cleanups. ]
上级 722024db cbe9ee00
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Documentation/00-INDEX
浏览文件 @ c032a2de
......@@ -42,14 +42,8 @@ IRQ.txt
- description of what an IRQ is.
ManagementStyle
- how to (attempt to) manage kernel hackers.
MSI-HOWTO.txt
- the Message Signaled Interrupts (MSI) Driver Guide HOWTO and FAQ.
RCU/
- directory with info on RCU (read-copy update).
README.DAC960
- info on Mylex DAC960/DAC1100 PCI RAID Controller Driver for Linux.
README.cycladesZ
- info on Cyclades-Z firmware loading.
SAK.txt
- info on Secure Attention Keys.
SM501.txt
......@@ -86,20 +80,16 @@ blackfin/
- directory with documentation for the Blackfin arch.
block/
- info on the Block I/O (BIO) layer.
blockdev/
- info on block devices & drivers
cachetlb.txt
- describes the cache/TLB flushing interfaces Linux uses.
cciss.txt
- info, major/minor #'s for Compaq's SMART Array Controllers.
cdrom/
- directory with information on the CD-ROM drivers that Linux has.
computone.txt
- info on Computone Intelliport II/Plus Multiport Serial Driver.
connector/
- docs on the netlink based userspace<->kernel space communication mod.
console/
- documentation on Linux console drivers.
cpqarray.txt
- info on using Compaq's SMART2 Intelligent Disk Array Controllers.
cpu-freq/
- info on CPU frequency and voltage scaling.
cpu-hotplug.txt
......@@ -126,8 +116,6 @@ device-mapper/
- directory with info on Device Mapper.
devices.txt
- plain ASCII listing of all the nodes in /dev/ with major minor #'s.
digiepca.txt
- info on Digi Intl. {PC,PCI,EISA}Xx and Xem series cards.
dontdiff
- file containing a list of files that should never be diff'ed.
driver-model/
......@@ -152,14 +140,10 @@ filesystems/
- info on the vfs and the various filesystems that Linux supports.
firmware_class/
- request_firmware() hotplug interface info.
floppy.txt
- notes and driver options for the floppy disk driver.
frv/
- Fujitsu FR-V Linux documentation.
gpio.txt
- overview of GPIO (General Purpose Input/Output) access conventions.
hayes-esp.txt
- info on using the Hayes ESP serial driver.
highuid.txt
- notes on the change from 16 bit to 32 bit user/group IDs.
timers/
......@@ -186,8 +170,6 @@ io_ordering.txt
- info on ordering I/O writes to memory-mapped addresses.
ioctl/
- directory with documents describing various IOCTL calls.
ioctl-number.txt
- how to implement and register device/driver ioctl calls.
iostats.txt
- info on I/O statistics Linux kernel provides.
irqflags-tracing.txt
......@@ -250,14 +232,10 @@ mips/
- directory with info about Linux on MIPS architecture.
mono.txt
- how to execute Mono-based .NET binaries with the help of BINFMT_MISC.
moxa-smartio
- file with info on installing/using Moxa multiport serial driver.
mutex-design.txt
- info on the generic mutex subsystem.
namespaces/
- directory with various information about namespaces
nbd.txt
- info on a TCP implementation of a network block device.
netlabel/
- directory with information on the NetLabel subsystem.
networking/
......@@ -270,8 +248,6 @@ numastat.txt
- info on how to read Numa policy hit/miss statistics in sysfs.
oops-tracing.txt
- how to decode those nasty internal kernel error dump messages.
paride.txt
- information about the parallel port IDE subsystem.
parisc/
- directory with info on using Linux on PA-RISC architecture.
parport.txt
......@@ -290,20 +266,16 @@ 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
- short guide on how to set up and use the RAM disk.
rbtree.txt
- info on what red-black trees are and what they are for.
riscom8.txt
- notes on using the RISCom/8 multi-port serial driver.
robust-futex-ABI.txt
- documentation of the robust futex ABI.
robust-futexes.txt
- a description of what robust futexes are.
rocket.txt
- info on the Comtrol RocketPort multiport serial driver.
rt-mutex-design.txt
- description of the RealTime mutex implementation design.
rt-mutex.txt
......@@ -332,8 +304,6 @@ sparc/
- directory with info on using Linux on Sparc architecture.
sparse.txt
- info on how to obtain and use the sparse tool for typechecking.
specialix.txt
- info on hardware/driver for specialix IO8+ multiport serial card.
spi/
- overview of Linux kernel Serial Peripheral Interface (SPI) support.
spinlocks.txt
......@@ -342,14 +312,10 @@ stable_api_nonsense.txt
- info on why the kernel does not have a stable in-kernel api or abi.
stable_kernel_rules.txt
- rules and procedures for the -stable kernel releases.
stallion.txt
- info on using the Stallion multiport serial driver.
svga.txt
- short guide on selecting video modes at boot via VGA BIOS.
sysfs-rules.txt
- How not to use sysfs.
sx.txt
- info on the Specialix SX/SI multiport serial driver.
sysctl/
- directory with info on the /proc/sys/* files.
sysrq.txt
......@@ -358,8 +324,6 @@ telephony/
- directory with info on telephony (e.g. voice over IP) support.
time_interpolators.txt
- info on time interpolators.
tty.txt
- guide to the locking policies of the tty layer.
uml/
- directory with information about User Mode Linux.
unicode.txt
......
Documentation/ABI/testing/sysfs-c2port 0 → 100644
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What: /sys/class/c2port/
Date: October 2008
Contact: Rodolfo Giometti <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
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 <giometti@linux.it>
Description:
The /sys/class/c2port/c2portX/rev_id file show the revision ID
of the connected micro.
Documentation/ABI/testing/sysfs-firmware-acpi
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......@@ -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.
......@@ -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
Documentation/PCI/00-INDEX
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00-INDEX
- this file
MSI-HOWTO.txt
- the Message Signaled Interrupts (MSI) Driver Guide HOWTO and FAQ.
PCI-DMA-mapping.txt
- info for PCI drivers using DMA portably across all platforms
PCIEBUS-HOWTO.txt
......
Documentation/acpi/debug.txt 0 → 100644
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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
Documentation/blockdev/00-INDEX 0 → 100644
浏览文件 @ c032a2de
00-INDEX
- this file
README.DAC960
- info on Mylex DAC960/DAC1100 PCI RAID Controller Driver for Linux.
cciss.txt
- info, major/minor #'s for Compaq's SMART Array Controllers.
cpqarray.txt
- info on using Compaq's SMART2 Intelligent Disk Array Controllers.
floppy.txt
- notes and driver options for the floppy disk driver.
nbd.txt
- info on a TCP implementation of a network block device.
paride.txt
- information about the parallel port IDE subsystem.
ramdisk.txt
- short guide on how to set up and use the RAM disk.
Documentation/c2port.txt 0 → 100644
浏览文件 @ c032a2de
C2 port support
---------------
(C) Copyright 2007 Rodolfo Giometti <giometti@enneenne.com>
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
Documentation/cgroups/freezer-subsystem.txt
浏览文件 @ c032a2de
The cgroup freezer is useful to batch job management system which start
The cgroup freezer is useful to batch job management system which start
and stop sets of tasks in order to schedule the resources of a machine
according to the desires of a system administrator. This sort of program
is often used on HPC clusters to schedule access to the cluster as a
......@@ -6,7 +6,7 @@ whole. The cgroup freezer uses cgroups to describe the set of tasks to
be started/stopped by the batch job management system. It also provides
a means to start and stop the tasks composing the job.
The cgroup freezer will also be useful for checkpointing running groups
The cgroup freezer will also be useful for checkpointing running groups
of tasks. The freezer allows the checkpoint code to obtain a consistent
image of the tasks by attempting to force the tasks in a cgroup into a
quiescent state. Once the tasks are quiescent another task can
......@@ -16,7 +16,7 @@ recoverable error occur. This also allows the checkpointed tasks to be
migrated between nodes in a cluster by copying the gathered information
to another node and restarting the tasks there.
Sequences of SIGSTOP and SIGCONT are not always sufficient for stopping
Sequences of SIGSTOP and SIGCONT are not always sufficient for stopping
and resuming tasks in userspace. Both of these signals are observable
from within the tasks we wish to freeze. While SIGSTOP cannot be caught,
blocked, or ignored it can be seen by waiting or ptracing parent tasks.
......@@ -37,26 +37,29 @@ demonstrate this problem using nested bash shells:
<at this point 16990 exits and causes 16644 to exit too>
This happens because bash can observe both signals and choose how it
This happens because bash can observe both signals and choose how it
responds to them.
Another example of a program which catches and responds to these
Another example of a program which catches and responds to these
signals is gdb. In fact any program designed to use ptrace is likely to
have a problem with this method of stopping and resuming tasks.
In contrast, the cgroup freezer uses the kernel freezer code to
In contrast, the cgroup freezer uses the kernel freezer code to
prevent the freeze/unfreeze cycle from becoming visible to the tasks
being frozen. This allows the bash example above and gdb to run as
expected.
The freezer subsystem in the container filesystem defines a file named
The freezer subsystem in the container filesystem defines a file named
freezer.state. Writing "FROZEN" to the state file will freeze all tasks in the
cgroup. Subsequently writing "THAWED" will unfreeze the tasks in the cgroup.
Reading will return the current state.
Note freezer.state doesn't exist in root cgroup, which means root cgroup
is non-freezable.
* Examples of usage :
# mkdir /containers/freezer
# mkdir /containers
# mount -t cgroup -ofreezer freezer /containers
# mkdir /containers/0
# echo $some_pid > /containers/0/tasks
......@@ -94,6 +97,6 @@ things happens:
the freezer.state file
2) Userspace retries the freezing operation by writing "FROZEN" to
the freezer.state file (writing "FREEZING" is not legal
and returns EIO)
and returns EINVAL)
3) The tasks that blocked the cgroup from entering the "FROZEN"
state disappear from the cgroup's set of tasks.
Documentation/filesystems/xip.txt
浏览文件 @ c032a2de
......@@ -39,10 +39,11 @@ The block device operation is optional, these block devices support it as of
today:
- dcssblk: s390 dcss block device driver
An address space operation named get_xip_page is used to retrieve reference
to a struct page. To address the target page, a reference to an address_space,
and a sector number is provided. A 3rd argument indicates whether the
function should allocate blocks if needed.
An address space operation named get_xip_mem is used to retrieve references
to a page frame number and a kernel address. To obtain these values a reference
to an address_space is provided. This function assigns values to the kmem and
pfn parameters. The third argument indicates whether the function should allocate
blocks if needed.
This address space operation is mutually exclusive with readpage&writepage that
do page cache read/write operations.
......
Documentation/hwmon/adt7462 0 → 100644
浏览文件 @ c032a2de
Kernel driver adt7462
======================
Supported chips:
* Analog Devices ADT7462
Prefix: 'adt7462'
Addresses scanned: I2C 0x58, 0x5C
Datasheet: Publicly available at the Analog Devices website
Author: Darrick J. Wong
Description
-----------
This driver implements support for the Analog Devices ADT7462 chip family.
This chip is a bit of a beast. It has 8 counters for measuring fan speed. It
can also measure 13 voltages or 4 temperatures, or various combinations of the
two. See the chip documentation for more details about the exact set of
configurations. This driver does not allow one to configure the chip; that is
left to the system designer.
A sophisticated control system for the PWM outputs is designed into the ADT7462
that allows fan speed to be adjusted automatically based on any of the three
temperature sensors. Each PWM output is individually adjustable and
programmable. Once configured, the ADT7462 will adjust the PWM outputs in
response to the measured temperatures without further host intervention. This
feature can also be disabled for manual control of the PWM's.
Each of the measured inputs (voltage, temperature, fan speed) has
corresponding high/low limit values. The ADT7462 will signal an ALARM if
any measured value exceeds either limit.
The ADT7462 samples all inputs continuously. The driver will not read
the registers more often than once every other second. Further,
configuration data is only read once per minute.
Special Features
----------------
The ADT7462 have a 10-bit ADC and can therefore measure temperatures
with 0.25 degC resolution.
The Analog Devices datasheet is very detailed and describes a procedure for
determining an optimal configuration for the automatic PWM control.
The driver will report sensor labels when it is able to determine that
information from the configuration registers.
Configuration Notes
-------------------
Besides standard interfaces driver adds the following:
* PWM Control
* pwm#_auto_point1_pwm and temp#_auto_point1_temp and
* pwm#_auto_point2_pwm and temp#_auto_point2_temp -
point1: Set the pwm speed at a lower temperature bound.
point2: Set the pwm speed at a higher temperature bound.
The ADT7462 will scale the pwm between the lower and higher pwm speed when
the temperature is between the two temperature boundaries. PWM values range
from 0 (off) to 255 (full speed). Fan speed will be set to maximum when the
temperature sensor associated with the PWM control exceeds temp#_max.
Documentation/hwmon/lis3lv02d 0 → 100644
浏览文件 @ c032a2de
Kernel driver lis3lv02d
==================
Supported chips:
* STMicroelectronics LIS3LV02DL and LIS3LV02DQ
Author:
Yan Burman <burman.yan@gmail.com>
Eric Piel <eric.piel@tremplin-utc.net>
Description
-----------
This driver provides support for the accelerometer found in various HP laptops
sporting the feature officially called "HP Mobile Data Protection System 3D" or
"HP 3D DriveGuard". It detect automatically laptops with this sensor. Known models
(for now the HP 2133, nc6420, nc2510, nc8510, nc84x0, nw9440 and nx9420) will
have their axis automatically oriented on standard way (eg: you can directly
play neverball). The accelerometer data is readable via
/sys/devices/platform/lis3lv02d.
Sysfs attributes under /sys/devices/platform/lis3lv02d/:
position - 3D position that the accelerometer reports. Format: "(x,y,z)"
calibrate - read: values (x, y, z) that are used as the base for input class device operation.
write: forces the base to be recalibrated with the current position.
rate - reports the sampling rate of the accelerometer device in HZ
This driver also provides an absolute input class device, allowing
the laptop to act as a pinball machine-esque joystick.
Axes orientation
----------------
For better compatibility between the various laptops. The values reported by
the accelerometer are converted into a "standard" organisation of the axes
(aka "can play neverball out of the box"):
* When the laptop is horizontal the position reported is about 0 for X and Y
and a positive value for Z
* If the left side is elevated, X increases (becomes positive)
* If the front side (where the touchpad is) is elevated, Y decreases (becomes negative)
* If the laptop is put upside-down, Z becomes negative
If your laptop model is not recognized (cf "dmesg"), you can send an email to the
authors to add it to the database. When reporting a new laptop, please include
the output of "dmidecode" plus the value of /sys/devices/platform/lis3lv02d/position
in these four cases.
Documentation/ics932s401 0 → 100644
浏览文件 @ c032a2de
Kernel driver ics932s401
======================
Supported chips:
* IDT ICS932S401
Prefix: 'ics932s401'
Addresses scanned: I2C 0x69
Datasheet: Publically available at the IDT website
Author: Darrick J. Wong
Description
-----------
This driver implements support for the IDT ICS932S401 chip family.
This chip has 4 clock outputs--a base clock for the CPU (which is likely
multiplied to get the real CPU clock), a system clock, a PCI clock, a USB
clock, and a reference clock. The driver reports selected and actual
frequency. If spread spectrum mode is enabled, the driver also reports by what
percent the clock signal is being spread, which should be between 0 and -0.5%.
All frequencies are reported in KHz.
The ICS932S401 monitors all inputs continuously. The driver will not read
the registers more often than once every other second.
Special Features
----------------
The clocks could be reprogrammed to increase system speed. I will not help you
do this, as you risk damaging your system!
Documentation/ioctl/00-INDEX 0 → 100644
浏览文件 @ c032a2de
00-INDEX
- this file
cdrom.txt
- summary of CDROM ioctl calls
hdio.txt
- summary of HDIO_ ioctl calls
ioctl-decoding.txt
- how to decode the bits of an IOCTL code
ioctl-number.txt
- how to implement and register device/driver ioctl calls
Documentation/kernel-parameters.txt
浏览文件 @ c032a2de
......@@ -198,59 +198,42 @@ and is between 256 and 4096 characters. It is defined in the file
that require a timer override, but don't have
HPET
acpi.debug_layer= [HW,ACPI]
acpi_backlight= [HW,ACPI]
acpi_backlight=vendor
acpi_backlight=video
If set to vendor, prefer vendor specific driver
(e.g. thinkpad_acpi, sony_acpi, etc.) instead
of the ACPI video.ko driver.
acpi_display_output= [HW,ACPI]
acpi_display_output=vendor
acpi_display_output=video
See above.
acpi.debug_layer= [HW,ACPI,ACPI_DEBUG]
acpi.debug_level= [HW,ACPI,ACPI_DEBUG]
Format: <int>
Each bit of the <int> indicates an ACPI debug layer,
1: enable, 0: disable. It is useful for boot time
debugging. After system has booted up, it can be set
via /sys/module/acpi/parameters/debug_layer.
CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
Available bits (add the numbers together) to enable debug output
for specific parts of the ACPI subsystem:
0x01 utilities 0x02 hardware 0x04 events 0x08 tables
0x10 namespace 0x20 parser 0x40 dispatcher
0x80 executer 0x100 resources 0x200 acpica debugger
0x400 os services 0x800 acpica disassembler.
The number can be in decimal or prefixed with 0x in hex.
Warning: Many of these options can produce a lot of
output and make your system unusable. Be very careful.
acpi.debug_level= [HW,ACPI]
Format: <int>
Each bit of the <int> indicates an ACPI debug level,
which corresponds to the level in an ACPI_DEBUG_PRINT
statement. After system has booted up, this mask
can be set via /sys/module/acpi/parameters/debug_level.
CONFIG_ACPI_DEBUG must be enabled for this to produce
any output. The number can be in decimal or prefixed
with 0x in hex. Some of these options produce so much
output that the system is unusable.
The following global components are defined by the
ACPI CA:
0x01 error
0x02 warn
0x04 init
0x08 debug object
0x10 info
0x20 init names
0x40 parse
0x80 load
0x100 dispatch
0x200 execute
0x400 names
0x800 operation region
0x1000 bfield
0x2000 tables
0x4000 values
0x8000 objects
0x10000 resources
0x20000 user requests
0x40000 package
The number can be in decimal or prefixed with 0x in hex.
Warning: Many of these options can produce a lot of
output and make your system unusable. Be very careful.
CONFIG_ACPI_DEBUG must be enabled to produce any ACPI
debug output. Bits in debug_layer correspond to a
_COMPONENT in an ACPI source file, e.g.,
#define _COMPONENT ACPI_PCI_COMPONENT
Bits in debug_level correspond to a level in
ACPI_DEBUG_PRINT statements, e.g.,
ACPI_DEBUG_PRINT((ACPI_DB_INFO, ...
See Documentation/acpi/debug.txt for more information
about debug layers and levels.
Enable AML "Debug" output, i.e., stores to the Debug
object while interpreting AML:
acpi.debug_layer=0xffffffff acpi.debug_level=0x2
Enable PCI/PCI interrupt routing info messages:
acpi.debug_layer=0x400000 acpi.debug_level=0x4
Enable all messages related to ACPI hardware:
acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
Some values produce so much output that the system is
unusable. The "log_buf_len" parameter may be useful
if you need to capture more output.
acpi.power_nocheck= [HW,ACPI]
Format: 1/0 enable/disable the check of power state.
......@@ -646,7 +629,7 @@ and is between 256 and 4096 characters. It is defined in the file
digiepca= [HW,SERIAL]
See drivers/char/README.epca and
Documentation/digiepca.txt.
Documentation/serial/digiepca.txt.
disable_mtrr_cleanup [X86]
enable_mtrr_cleanup [X86]
......@@ -757,7 +740,7 @@ and is between 256 and 4096 characters. It is defined in the file
See header of drivers/scsi/fdomain.c.
floppy= [HW]
See Documentation/floppy.txt.
See Documentation/blockdev/floppy.txt.
force_pal_cache_flush
[IA-64] Avoid check_sal_cache_flush which may hang on
......@@ -1118,7 +1101,7 @@ and is between 256 and 4096 characters. It is defined in the file
the same attribute, the last one is used.
load_ramdisk= [RAM] List of ramdisks to load from floppy
See Documentation/ramdisk.txt.
See Documentation/blockdev/ramdisk.txt.
lockd.nlm_grace_period=P [NFS] Assign grace period.
Format: <integer>
......@@ -1613,7 +1596,7 @@ and is between 256 and 4096 characters. It is defined in the file
pcd. [PARIDE]
See header of drivers/block/paride/pcd.c.
See also Documentation/paride.txt.
See also Documentation/blockdev/paride.txt.
pci=option[,option...] [PCI] various PCI subsystem options:
off [X86] don't probe for the PCI bus
......@@ -1714,7 +1697,7 @@ and is between 256 and 4096 characters. It is defined in the file
pcmv= [HW,PCMCIA] BadgePAD 4
pd. [PARIDE]
See Documentation/paride.txt.
See Documentation/blockdev/paride.txt.
pdcchassis= [PARISC,HW] Disable/Enable PDC Chassis Status codes at
boot time.
......@@ -1722,10 +1705,10 @@ and is between 256 and 4096 characters. It is defined in the file
See arch/parisc/kernel/pdc_chassis.c
pf. [PARIDE]
See Documentation/paride.txt.
See Documentation/blockdev/paride.txt.
pg. [PARIDE]
See Documentation/paride.txt.
See Documentation/blockdev/paride.txt.
pirq= [SMP,APIC] Manual mp-table setup
See Documentation/x86/i386/IO-APIC.txt.
......@@ -1795,7 +1778,7 @@ and is between 256 and 4096 characters. It is defined in the file
prompt_ramdisk= [RAM] List of RAM disks to prompt for floppy disk
before loading.
See Documentation/ramdisk.txt.
See Documentation/blockdev/ramdisk.txt.
psmouse.proto= [HW,MOUSE] Highest PS2 mouse protocol extension to
probe for; one of (bare|imps|exps|lifebook|any).
......@@ -1815,7 +1798,7 @@ and is between 256 and 4096 characters. It is defined in the file
<io>,<mss_io>,<mss_irq>,<mss_dma>,<mpu_io>,<mpu_irq>
pt. [PARIDE]
See Documentation/paride.txt.
See Documentation/blockdev/paride.txt.
pty.legacy_count=
[KNL] Number of legacy pty's. Overwrites compiled-in
......@@ -1829,10 +1812,10 @@ and is between 256 and 4096 characters. It is defined in the file
See Documentation/md.txt.
ramdisk_blocksize= [RAM]
See Documentation/ramdisk.txt.
See Documentation/blockdev/ramdisk.txt.
ramdisk_size= [RAM] Sizes of RAM disks in kilobytes
See Documentation/ramdisk.txt.
See Documentation/blockdev/ramdisk.txt.
rcupdate.blimit= [KNL,BOOT]
Set maximum number of finished RCU callbacks to process
......@@ -2164,7 +2147,7 @@ and is between 256 and 4096 characters. It is defined in the file
See Documentation/sonypi.txt
specialix= [HW,SERIAL] Specialix multi-serial port adapter
See Documentation/specialix.txt.
See Documentation/serial/specialix.txt.
spia_io_base= [HW,MTD]
spia_fio_base=
......
Documentation/printk-formats.txt 0 → 100644
浏览文件 @ c032a2de
If variable is of Type, use printk format specifier:
---------------------------------------------------------
int %d or %x
unsigned int %u or %x
long %ld or %lx
unsigned long %lu or %lx
long long %lld or %llx
unsigned long long %llu or %llx
size_t %zu or %zx
ssize_t %zd or %zx
Raw pointer value SHOULD be printed with %p.
u64 SHOULD be printed with %llu/%llx, (unsigned long long):
printk("%llu", (unsigned long long)u64_var);
s64 SHOULD be printed with %lld/%llx, (long long):
printk("%lld", (long long)s64_var);
If <type> is dependent on a config option for its size (e.g., sector_t,
blkcnt_t, phys_addr_t, resource_size_t) or is architecture-dependent
for its size (e.g., tcflag_t), use a format specifier of its largest
possible type and explicitly cast to it. Example:
printk("test: sector number/total blocks: %llu/%llu\n",
(unsigned long long)sector, (unsigned long long)blockcount);
Reminder: sizeof() result is of type size_t.
Thank you for your cooperation and attention.
By Randy Dunlap <rdunlap@xenotime.net>
Documentation/serial/00-INDEX 0 → 100644
浏览文件 @ c032a2de
00-INDEX
- this file.
README.cycladesZ
- info on Cyclades-Z firmware loading.
computone.txt
- info on Computone Intelliport II/Plus Multiport Serial Driver.
digiepca.txt
- info on Digi Intl. {PC,PCI,EISA}Xx and Xem series cards.
hayes-esp.txt
- info on using the Hayes ESP serial driver.
moxa-smartio
- file with info on installing/using Moxa multiport serial driver.
riscom8.txt
- notes on using the RISCom/8 multi-port serial driver.
rocket.txt
- info on the Comtrol RocketPort multiport serial driver.
specialix.txt
- info on hardware/driver for specialix IO8+ multiport serial card.
stallion.txt
- info on using the Stallion multiport serial driver.
sx.txt
- info on the Specialix SX/SI multiport serial driver.
tty.txt
- guide to the locking policies of the tty layer.
Documentation/computone.txt → Documentation/serial/computone.txt
浏览文件 @ c032a2de
......@@ -247,7 +247,7 @@ shar archive to make it easier to extract the script from the documentation.
To create the ip2mkdev shell script change to a convenient directory (/tmp
works just fine) and run the following command:
unshar Documentation/computone.txt
unshar Documentation/serial/computone.txt
(This file)
You should now have a file ip2mkdev in your current working directory with
......
Documentation/w1/masters/omap-hdq 0 → 100644
浏览文件 @ c032a2de
Kernel driver for omap HDQ/1-wire module.
========================================
Supported chips:
================
HDQ/1-wire controller on the TI OMAP 2430/3430 platforms.
A useful link about HDQ basics:
===============================
http://focus.ti.com/lit/an/slua408/slua408.pdf
Description:
============
The HDQ/1-Wire module of TI OMAP2430/3430 platforms implement the hardware
protocol of the master functions of the Benchmark HDQ and the Dallas
Semiconductor 1-Wire protocols. These protocols use a single wire for
communication between the master (HDQ/1-Wire controller) and the slave
(HDQ/1-Wire external compliant device).
A typical application of the HDQ/1-Wire module is the communication with battery
monitor (gas gauge) integrated circuits.
The controller supports operation in both HDQ and 1-wire mode. The essential
difference between the HDQ and 1-wire mode is how the slave device responds to
initialization pulse.In HDQ mode, the firmware does not require the host to
create an initialization pulse to the slave.However, the slave can be reset by
using an initialization pulse (also referred to as a break pulse).The slave
does not respond with a presence pulse as it does in the 1-Wire protocol.
Remarks:
========
The driver (drivers/w1/masters/omap_hdq.c) supports the HDQ mode of the
controller. In this mode, as we can not read the ID which obeys the W1
spec(family:id:crc), a module parameter can be passed to the driver which will
be used to calculate the CRC and pass back an appropriate slave ID to the W1
core.
By default the master driver and the BQ slave i/f
driver(drivers/w1/slaves/w1_bq27000.c) sets the ID to 1.
Please note to load both the modules with a different ID if required, but note
that the ID used should be same for both master and slave driver loading.
e.g:
insmod omap_hdq.ko W1_ID=2
inamod w1_bq27000.ko F_ID=2
MAINTAINERS
浏览文件 @ c032a2de
......@@ -2216,6 +2216,13 @@ M: adaplas@gmail.com
L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
INTEL MENLOW THERMAL DRIVER
P: Sujith Thomas
M: sujith.thomas@intel.com
L: linux-acpi@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Supported
INTEL IA32 MICROCODE UPDATE SUPPORT
P: Tigran Aivazian
M: tigran@aivazian.fsnet.co.uk
......@@ -2696,6 +2703,11 @@ P: Arnaldo Carvalho de Melo
M: acme@ghostprotocols.net
S: Maintained
LIS3LV02D ACCELEROMETER DRIVER
P: Eric Piel
M: eric.piel@tremplin-utc.net
S: Maintained
LM83 HARDWARE MONITOR DRIVER
P: Jean Delvare
M: khali@linux-fr.org
......@@ -3377,7 +3389,9 @@ S: Maintained
PNP SUPPORT
P: Adam Belay
M: ambx1@neo.rr.com
M: abelay@mit.edu
P: Bjorn Helgaas
M: bjorn.helgaas@hp.com
S: Maintained
PNXxxxx I2C DRIVER
......
Makefile
浏览文件 @ c032a2de
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 28
EXTRAVERSION = -rc4
EXTRAVERSION = -rc5
NAME = Killer Bat of Doom
# *DOCUMENTATION*
......
arch/arm/include/asm/dma-mapping.h
浏览文件 @ c032a2de
......@@ -256,8 +256,17 @@ int dmabounce_sync_for_cpu(struct device *, dma_addr_t, unsigned long,
int dmabounce_sync_for_device(struct device *, dma_addr_t, unsigned long,
size_t, enum dma_data_direction);
#else
#define dmabounce_sync_for_cpu(dev,dma,off,sz,dir) (1)
#define dmabounce_sync_for_device(dev,dma,off,sz,dir) (1)
static inline int dmabounce_sync_for_cpu(struct device *d, dma_addr_t addr,
unsigned long offset, size_t size, enum dma_data_direction dir)
{
return 1;
}
static inline int dmabounce_sync_for_device(struct device *d, dma_addr_t addr,
unsigned long offset, size_t size, enum dma_data_direction dir)
{
return 1;
}
/**
......
arch/arm/include/asm/hardware/iop3xx-adma.h
浏览文件 @ c032a2de
......@@ -730,7 +730,8 @@ static inline void iop_desc_set_next_desc(struct iop_adma_desc_slot *desc,
{
/* hw_desc->next_desc is the same location for all channels */
union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
BUG_ON(hw_desc.dma->next_desc);
iop_paranoia(hw_desc.dma->next_desc);
hw_desc.dma->next_desc = next_desc_addr;
}
......@@ -760,7 +761,7 @@ static inline int iop_desc_get_zero_result(struct iop_adma_desc_slot *desc)
struct iop3xx_desc_aau *hw_desc = desc->hw_desc;
struct iop3xx_aau_desc_ctrl desc_ctrl = hw_desc->desc_ctrl_field;
BUG_ON(!(desc_ctrl.tx_complete && desc_ctrl.zero_result_en));
iop_paranoia(!(desc_ctrl.tx_complete && desc_ctrl.zero_result_en));
return desc_ctrl.zero_result_err;
}
......
arch/arm/include/asm/hardware/iop_adma.h
浏览文件 @ c032a2de
......@@ -23,6 +23,12 @@
#define IOP_ADMA_SLOT_SIZE 32
#define IOP_ADMA_THRESHOLD 4
#ifdef DEBUG
#define IOP_PARANOIA 1
#else
#define IOP_PARANOIA 0
#endif
#define iop_paranoia(x) BUG_ON(IOP_PARANOIA && (x))
/**
* struct iop_adma_device - internal representation of an ADMA device
......
arch/arm/include/asm/mach/map.h
浏览文件 @ c032a2de
......@@ -19,12 +19,13 @@ struct map_desc {
};
/* types 0-3 are defined in asm/io.h */
#define MT_CACHECLEAN 4
#define MT_MINICLEAN 5
#define MT_LOW_VECTORS 6
#define MT_HIGH_VECTORS 7
#define MT_MEMORY 8
#define MT_ROM 9
#define MT_UNCACHED 4
#define MT_CACHECLEAN 5
#define MT_MINICLEAN 6
#define MT_LOW_VECTORS 7
#define MT_HIGH_VECTORS 8
#define MT_MEMORY 9
#define MT_ROM 10
#ifdef CONFIG_MMU
extern void iotable_init(struct map_desc *, int);
......
arch/arm/mach-clps711x/include/mach/hardware.h
浏览文件 @ c032a2de
......@@ -94,20 +94,6 @@
#include <asm/hardware/ep7212.h>
#include <asm/hardware/cs89712.h>
/* dynamic ioremap() areas */
#define FLASH_START 0x00000000
#define FLASH_SIZE 0x800000
#define FLASH_WIDTH 4
#define SRAM_START 0x60000000
#define SRAM_SIZE 0xc000
#define SRAM_WIDTH 4
#define BOOTROM_START 0x70000000
#define BOOTROM_SIZE 0x80
#define BOOTROM_WIDTH 4
/* static cdb89712_map_io() areas */
#define REGISTER_START 0x80000000
#define REGISTER_SIZE 0x4000
......@@ -198,14 +184,6 @@
#define CEIVA_FLASH_SIZE 0x100000
#define CEIVA_FLASH_WIDTH 2
#define SRAM_START 0x60000000
#define SRAM_SIZE 0xc000
#define SRAM_WIDTH 4
#define BOOTROM_START 0x70000000
#define BOOTROM_SIZE 0x80
#define BOOTROM_WIDTH 4
/*
* SED1355 LCD controller
*/
......
arch/arm/mach-clps7500/core.c
浏览文件 @ c032a2de
......@@ -275,9 +275,9 @@ static struct map_desc cl7500_io_desc[] __initdata = {
.length = ISA_SIZE,
.type = MT_DEVICE
}, { /* Flash */
.virtual = FLASH_BASE,
.pfn = __phys_to_pfn(FLASH_START),
.length = FLASH_SIZE,
.virtual = CLPS7500_FLASH_BASE,
.pfn = __phys_to_pfn(CLPS7500_FLASH_START),
.length = CLPS7500_FLASH_SIZE,
.type = MT_DEVICE
}, { /* LED */
.virtual = LED_BASE,
......
arch/arm/mach-clps7500/include/mach/hardware.h
浏览文件 @ c032a2de
......@@ -39,9 +39,9 @@
#define ISA_SIZE 0x00010000
#define ISA_BASE 0xe1000000
#define FLASH_START 0x01000000 /* XXX */
#define FLASH_SIZE 0x01000000
#define FLASH_BASE 0xe2000000
#define CLPS7500_FLASH_START 0x01000000 /* XXX */
#define CLPS7500_FLASH_SIZE 0x01000000
#define CLPS7500_FLASH_BASE 0xe2000000
#define LED_START 0x0302B000
#define LED_SIZE 0x00001000
......
arch/arm/mach-h720x/include/mach/boards.h
浏览文件 @ c032a2de
......@@ -19,9 +19,9 @@
#ifdef CONFIG_ARCH_H7202
/* FLASH */
#define FLASH_VIRT 0xd0000000
#define FLASH_PHYS 0x00000000
#define FLASH_SIZE 0x02000000
#define H720X_FLASH_VIRT 0xd0000000
#define H720X_FLASH_PHYS 0x00000000
#define H720X_FLASH_SIZE 0x02000000
/* onboard LAN controller */
# define ETH0_PHYS 0x08000000
......
arch/arm/mach-integrator/include/mach/platform.h
浏览文件 @ c032a2de
......@@ -407,28 +407,11 @@
*/
#define uHAL_MEMORY_SIZE INTEGRATOR_SSRAM_SIZE
/*
* Application Flash
*
*/
#define FLASH_BASE INTEGRATOR_FLASH_BASE
#define FLASH_SIZE INTEGRATOR_FLASH_SIZE
#define FLASH_END (FLASH_BASE + FLASH_SIZE - 1)
#define FLASH_BLOCK_SIZE SZ_128K
/*
* Boot Flash
*
*/
#define EPROM_BASE INTEGRATOR_BOOT_ROM_HI
#define EPROM_SIZE INTEGRATOR_BOOT_ROM_SIZE
#define EPROM_END (EPROM_BASE + EPROM_SIZE - 1)
/*
* Clean base - dummy
*
*/
#define CLEAN_BASE EPROM_BASE
#define CLEAN_BASE INTEGRATOR_BOOT_ROM_HI
/*
* Timer definitions
......
arch/arm/mach-iop13xx/include/mach/adma.h
浏览文件 @ c032a2de
......@@ -404,7 +404,8 @@ static inline void iop_desc_set_next_desc(struct iop_adma_desc_slot *desc,
u32 next_desc_addr)
{
struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc;
BUG_ON(hw_desc->next_desc);
iop_paranoia(hw_desc->next_desc);
hw_desc->next_desc = next_desc_addr;
}
......
arch/arm/mach-realview/clock.c
浏览文件 @ c032a2de
......@@ -104,7 +104,7 @@ static struct clk uart_clk = {
static struct clk mmci_clk = {
.name = "MCLK",
.rate = 33000000,
.rate = 24000000,
};
int clk_register(struct clk *clk)
......
arch/arm/mach-realview/include/mach/platform.h
浏览文件 @ c032a2de
......@@ -238,28 +238,11 @@
#define REALVIEW_INTREG_OFFSET 0x8 /* Interrupt control */
#define REALVIEW_DECODE_OFFSET 0xC /* Fitted logic modules */
/*
* Application Flash
*
*/
#define FLASH_BASE REALVIEW_FLASH_BASE
#define FLASH_SIZE REALVIEW_FLASH_SIZE
#define FLASH_END (FLASH_BASE + FLASH_SIZE - 1)
#define FLASH_BLOCK_SIZE SZ_128K
/*
* Boot Flash
*
*/
#define EPROM_BASE REALVIEW_BOOT_ROM_HI
#define EPROM_SIZE REALVIEW_BOOT_ROM_SIZE
#define EPROM_END (EPROM_BASE + EPROM_SIZE - 1)
/*
* Clean base - dummy
*
*/
#define CLEAN_BASE EPROM_BASE
#define CLEAN_BASE REALVIEW_BOOT_ROM_HI
/*
* System controller bit assignment
......
arch/arm/mach-versatile/clock.c
浏览文件 @ c032a2de
......@@ -105,7 +105,7 @@ static struct clk uart_clk = {
static struct clk mmci_clk = {
.name = "MCLK",
.rate = 33000000,
.rate = 24000000,
};
int clk_register(struct clk *clk)
......
arch/arm/mach-versatile/include/mach/platform.h
浏览文件 @ c032a2de
......@@ -436,28 +436,12 @@
#define SIC_INTMASK_PCI1 (1 << SIC_INT_PCI1)
#define SIC_INTMASK_PCI2 (1 << SIC_INT_PCI2)
#define SIC_INTMASK_PCI3 (1 << SIC_INT_PCI3)
/*
* Application Flash
*
*/
#define FLASH_BASE VERSATILE_FLASH_BASE
#define FLASH_SIZE VERSATILE_FLASH_SIZE
#define FLASH_END (FLASH_BASE + FLASH_SIZE - 1)
#define FLASH_BLOCK_SIZE SZ_128K
/*
* Boot Flash
*
*/
#define EPROM_BASE VERSATILE_BOOT_ROM_HI
#define EPROM_SIZE VERSATILE_BOOT_ROM_SIZE
#define EPROM_END (EPROM_BASE + EPROM_SIZE - 1)
/*
* Clean base - dummy
*
*/
#define CLEAN_BASE EPROM_BASE
#define CLEAN_BASE VERSATILE_BOOT_ROM_HI
/*
* System controller bit assignment
......
arch/arm/mm/cache-feroceon-l2.c
浏览文件 @ c032a2de
......@@ -150,7 +150,7 @@ static void feroceon_l2_inv_range(unsigned long start, unsigned long end)
/*
* Clean and invalidate partial last cache line.
*/
if (end & (CACHE_LINE_SIZE - 1)) {
if (start < end && end & (CACHE_LINE_SIZE - 1)) {
l2_clean_inv_pa(end & ~(CACHE_LINE_SIZE - 1));
end &= ~(CACHE_LINE_SIZE - 1);
}
......@@ -158,7 +158,7 @@ static void feroceon_l2_inv_range(unsigned long start, unsigned long end)
/*
* Invalidate all full cache lines between 'start' and 'end'.
*/
while (start != end) {
while (start < end) {
unsigned long range_end = calc_range_end(start, end);
l2_inv_pa_range(start, range_end - CACHE_LINE_SIZE);
start = range_end;
......
arch/arm/mm/mmu.c
浏览文件 @ c032a2de
......@@ -208,6 +208,12 @@ static struct mem_type mem_types[] = {
.prot_sect = PROT_SECT_DEVICE,
.domain = DOMAIN_IO,
},
[MT_UNCACHED] = {
.prot_pte = PROT_PTE_DEVICE,
.prot_l1 = PMD_TYPE_TABLE,
.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
.domain = DOMAIN_IO,
},
[MT_CACHECLEAN] = {
.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
.domain = DOMAIN_KERNEL,
......
arch/arm/plat-iop/setup.c
浏览文件 @ c032a2de
......@@ -16,14 +16,15 @@
#include <asm/hardware/iop3xx.h>
/*
* Standard IO mapping for all IOP3xx based systems
* Standard IO mapping for all IOP3xx based systems. Note that
* the IOP3xx OCCDR must be mapped uncached and unbuffered.
*/
static struct map_desc iop3xx_std_desc[] __initdata = {
{ /* mem mapped registers */
.virtual = IOP3XX_PERIPHERAL_VIRT_BASE,
.pfn = __phys_to_pfn(IOP3XX_PERIPHERAL_PHYS_BASE),
.length = IOP3XX_PERIPHERAL_SIZE,
.type = MT_DEVICE,
.type = MT_UNCACHED,
}, { /* PCI IO space */
.virtual = IOP3XX_PCI_LOWER_IO_VA,
.pfn = __phys_to_pfn(IOP3XX_PCI_LOWER_IO_PA),
......
arch/ia64/kvm/Kconfig
浏览文件 @ c032a2de
......@@ -20,6 +20,8 @@ if VIRTUALIZATION
config KVM
tristate "Kernel-based Virtual Machine (KVM) support"
depends on HAVE_KVM && EXPERIMENTAL
# for device assignment:
depends on PCI
select PREEMPT_NOTIFIERS
select ANON_INODES
---help---
......
arch/ia64/kvm/kvm-ia64.c
浏览文件 @ c032a2de
......@@ -673,16 +673,16 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
vcpu_load(vcpu);
if (vcpu->sigset_active)
sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
if (unlikely(vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED)) {
kvm_vcpu_block(vcpu);
clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
vcpu_put(vcpu);
return -EAGAIN;
r = -EAGAIN;
goto out;
}
if (vcpu->sigset_active)
sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
if (vcpu->mmio_needed) {
memcpy(vcpu->mmio_data, kvm_run->mmio.data, 8);
kvm_set_mmio_data(vcpu);
......@@ -690,7 +690,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
vcpu->mmio_needed = 0;
}
r = __vcpu_run(vcpu, kvm_run);
out:
if (vcpu->sigset_active)
sigprocmask(SIG_SETMASK, &sigsaved, NULL);
......
arch/ia64/kvm/vcpu.h
浏览文件 @ c032a2de
......@@ -384,6 +384,10 @@ static inline u64 __gpfn_is_io(u64 gpfn)
#define MODE_IND(psr) \
(((psr).it << 2) + ((psr).dt << 1) + (psr).rt)
#ifndef CONFIG_SMP
#define _vmm_raw_spin_lock(x) do {}while(0)
#define _vmm_raw_spin_unlock(x) do {}while(0)
#else
#define _vmm_raw_spin_lock(x) \
do { \
__u32 *ia64_spinlock_ptr = (__u32 *) (x); \
......@@ -403,6 +407,7 @@ static inline u64 __gpfn_is_io(u64 gpfn)
do { barrier(); \
((spinlock_t *)x)->raw_lock.lock = 0; } \
while (0)
#endif
void vmm_spin_lock(spinlock_t *lock);
void vmm_spin_unlock(spinlock_t *lock);
......
arch/m68k/kernel/ints.c
浏览文件 @ c032a2de
......@@ -133,7 +133,7 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt,
{
int i;
BUG_ON(IRQ_USER + cnt >= NR_IRQS);
BUG_ON(IRQ_USER + cnt > NR_IRQS);
m68k_first_user_vec = vec;
for (i = 0; i < cnt; i++)
irq_controller[IRQ_USER + i] = &user_irq_controller;
......
arch/mn10300/Kconfig.debug
浏览文件 @ c032a2de
......@@ -15,6 +15,15 @@ config DEBUG_DECOMPRESS_KERNEL
decompressing Linux seeing "Uncompressing Linux... " and
"Ok, booting the kernel.\n" on console.
config TEST_MISALIGNMENT_HANDLER
bool "Run tests on the misalignment handler"
depends on DEBUG_KERNEL
default n
help
If you say Y here the kernel will execute a list of misaligned memory
accesses to make sure the misalignment handler deals them with
correctly. If it does not, the kernel will throw a BUG.
config KPROBES
bool "Kprobes"
depends on DEBUG_KERNEL
......
arch/mn10300/mm/misalignment.c
浏览文件 @ c032a2de
此差异已折叠。
arch/parisc/include/asm/smp.h
浏览文件 @ c032a2de
......@@ -44,8 +44,6 @@ extern void arch_send_call_function_ipi(cpumask_t mask);
#define PROC_CHANGE_PENALTY 15 /* Schedule penalty */
extern unsigned long cpu_present_mask;
#define raw_smp_processor_id() (current_thread_info()->cpu)
#else /* CONFIG_SMP */
......
arch/s390/kernel/entry.S
浏览文件 @ c032a2de
......@@ -61,22 +61,25 @@ STACK_SIZE = 1 << STACK_SHIFT
#ifdef CONFIG_TRACE_IRQFLAGS
.macro TRACE_IRQS_ON
l %r1,BASED(.Ltrace_irq_on)
basr %r2,%r0
l %r1,BASED(.Ltrace_irq_on_caller)
basr %r14,%r1
.endm
.macro TRACE_IRQS_OFF
l %r1,BASED(.Ltrace_irq_off)
basr %r2,%r0
l %r1,BASED(.Ltrace_irq_off_caller)
basr %r14,%r1
.endm
.macro TRACE_IRQS_CHECK
basr %r2,%r0
tm SP_PSW(%r15),0x03 # irqs enabled?
jz 0f
l %r1,BASED(.Ltrace_irq_on)
l %r1,BASED(.Ltrace_irq_on_caller)
basr %r14,%r1
j 1f
0: l %r1,BASED(.Ltrace_irq_off)
0: l %r1,BASED(.Ltrace_irq_off_caller)
basr %r14,%r1
1:
.endm
......@@ -1113,9 +1116,12 @@ cleanup_io_leave_insn:
.Lschedtail: .long schedule_tail
.Lsysc_table: .long sys_call_table
#ifdef CONFIG_TRACE_IRQFLAGS
.Ltrace_irq_on: .long trace_hardirqs_on
.Ltrace_irq_off:
.long trace_hardirqs_off
.Ltrace_irq_on_caller:
.long trace_hardirqs_on_caller
.Ltrace_irq_off_caller:
.long trace_hardirqs_off_caller
#endif
#ifdef CONFIG_LOCKDEP
.Llockdep_sys_exit:
.long lockdep_sys_exit
#endif
......
arch/s390/kernel/entry64.S
浏览文件 @ c032a2de
......@@ -61,19 +61,22 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
#ifdef CONFIG_TRACE_IRQFLAGS
.macro TRACE_IRQS_ON
brasl %r14,trace_hardirqs_on
basr %r2,%r0
brasl %r14,trace_hardirqs_on_caller
.endm
.macro TRACE_IRQS_OFF
brasl %r14,trace_hardirqs_off
basr %r2,%r0
brasl %r14,trace_hardirqs_off_caller
.endm
.macro TRACE_IRQS_CHECK
basr %r2,%r0
tm SP_PSW(%r15),0x03 # irqs enabled?
jz 0f
brasl %r14,trace_hardirqs_on
brasl %r14,trace_hardirqs_on_caller
j 1f
0: brasl %r14,trace_hardirqs_off
0: brasl %r14,trace_hardirqs_off_caller
1:
.endm
#else
......
arch/s390/kernel/process.c
浏览文件 @ c032a2de
......@@ -136,9 +136,12 @@ static void default_idle(void)
return;
}
trace_hardirqs_on();
/* Don't trace preempt off for idle. */
stop_critical_timings();
/* Wait for external, I/O or machine check interrupt. */
__load_psw_mask(psw_kernel_bits | PSW_MASK_WAIT |
PSW_MASK_IO | PSW_MASK_EXT);
start_critical_timings();
}
void cpu_idle(void)
......
arch/s390/kernel/setup.c
浏览文件 @ c032a2de
......@@ -604,13 +604,13 @@ setup_memory(void)
if (memory_chunk[i].type != CHUNK_READ_WRITE)
continue;
start_chunk = PFN_DOWN(memory_chunk[i].addr);
end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size) - 1;
end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size);
end_chunk = min(end_chunk, end_pfn);
if (start_chunk >= end_chunk)
continue;
add_active_range(0, start_chunk, end_chunk);
pfn = max(start_chunk, start_pfn);
for (; pfn <= end_chunk; pfn++)
for (; pfn < end_chunk; pfn++)
page_set_storage_key(PFN_PHYS(pfn), PAGE_DEFAULT_KEY);
}
......
arch/s390/kernel/sys_s390.c
浏览文件 @ c032a2de
......@@ -198,7 +198,7 @@ asmlinkage long s390x_newuname(struct new_utsname __user *name)
{
int ret = sys_newuname(name);
if (current->personality == PER_LINUX32 && !ret) {
if (personality(current->personality) == PER_LINUX32 && !ret) {
ret = copy_to_user(name->machine, "s390\0\0\0\0", 8);
if (ret) ret = -EFAULT;
}
......
arch/s390/kernel/topology.c
浏览文件 @ c032a2de
......@@ -65,18 +65,21 @@ static int machine_has_topology_irq;
static struct timer_list topology_timer;
static void set_topology_timer(void);
static DECLARE_WORK(topology_work, topology_work_fn);
/* topology_lock protects the core linked list */
static DEFINE_SPINLOCK(topology_lock);
cpumask_t cpu_core_map[NR_CPUS];
cpumask_t cpu_coregroup_map(unsigned int cpu)
{
struct core_info *core = &core_info;
unsigned long flags;
cpumask_t mask;
cpus_clear(mask);
if (!machine_has_topology)
return cpu_present_map;
mutex_lock(&smp_cpu_state_mutex);
spin_lock_irqsave(&topology_lock, flags);
while (core) {
if (cpu_isset(cpu, core->mask)) {
mask = core->mask;
......@@ -84,7 +87,7 @@ cpumask_t cpu_coregroup_map(unsigned int cpu)
}
core = core->next;
}
mutex_unlock(&smp_cpu_state_mutex);
spin_unlock_irqrestore(&topology_lock, flags);
if (cpus_empty(mask))
mask = cpumask_of_cpu(cpu);
return mask;
......@@ -133,7 +136,7 @@ static void tl_to_cores(struct tl_info *info)
union tl_entry *tle, *end;
struct core_info *core = &core_info;
mutex_lock(&smp_cpu_state_mutex);
spin_lock_irq(&topology_lock);
clear_cores();
tle = info->tle;
end = (union tl_entry *)((unsigned long)info + info->length);
......@@ -157,7 +160,7 @@ static void tl_to_cores(struct tl_info *info)
}
tle = next_tle(tle);
}
mutex_unlock(&smp_cpu_state_mutex);
spin_unlock_irq(&topology_lock);
}
static void topology_update_polarization_simple(void)
......
arch/sh/include/asm/io.h
浏览文件 @ c032a2de
......@@ -293,6 +293,10 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
*/
#define xlate_dev_kmem_ptr(p) p
#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
int valid_phys_addr_range(unsigned long addr, size_t size);
int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
#endif /* __KERNEL__ */
#endif /* __ASM_SH_IO_H */
arch/sh/include/asm/pgtable.h
浏览文件 @ c032a2de
......@@ -148,6 +148,12 @@ extern void paging_init(void);
extern void page_table_range_init(unsigned long start, unsigned long end,
pgd_t *pgd);
#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_CPU_SH4) && defined(CONFIG_MMU)
extern void kmap_coherent_init(void);
#else
#define kmap_coherent_init() do { } while (0)
#endif
#include <asm-generic/pgtable.h>
#endif /* __ASM_SH_PGTABLE_H */
arch/sh/kernel/cpu/sh4a/setup-sh7723.c
浏览文件 @ c032a2de
......@@ -119,17 +119,17 @@ static struct plat_sci_port sci_platform_data[] = {
},{
.mapbase = 0xa4e30000,
.flags = UPF_BOOT_AUTOCONF,
.type = PORT_SCI,
.type = PORT_SCIFA,
.irqs = { 56, 56, 56, 56 },
},{
.mapbase = 0xa4e40000,
.flags = UPF_BOOT_AUTOCONF,
.type = PORT_SCI,
.type = PORT_SCIFA,
.irqs = { 88, 88, 88, 88 },
},{
.mapbase = 0xa4e50000,
.flags = UPF_BOOT_AUTOCONF,
.type = PORT_SCI,
.type = PORT_SCIFA,
.irqs = { 109, 109, 109, 109 },
}, {
.flags = 0,
......
arch/sh/kernel/early_printk.c
浏览文件 @ c032a2de
......@@ -75,6 +75,7 @@ static struct console bios_console = {
#endif
static struct uart_port scif_port = {
.type = PORT_SCIF,
.mapbase = CONFIG_EARLY_SCIF_CONSOLE_PORT,
.membase = (char __iomem *)CONFIG_EARLY_SCIF_CONSOLE_PORT,
};
......@@ -84,9 +85,9 @@ static void scif_sercon_putc(int c)
while (((sci_in(&scif_port, SCFDR) & EPK_FIFO_BITS) >= EPK_FIFO_SIZE))
;
sci_out(&scif_port, SCxTDR, c);
sci_in(&scif_port, SCxSR);
sci_out(&scif_port, SCxSR, 0xf3 & ~(0x20 | 0x40));
sci_out(&scif_port, SCxTDR, c);
while ((sci_in(&scif_port, SCxSR) & 0x40) == 0)
;
......
arch/sh/kernel/timers/timer-tmu.c
浏览文件 @ c032a2de
......@@ -120,7 +120,7 @@ static void tmu_set_mode(enum clock_event_mode mode,
{
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
ctrl_outl(ctrl_inl(TMU0_TCNT), TMU0_TCOR);
ctrl_outl(tmu_latest_interval[TMU0], TMU0_TCOR);
break;
case CLOCK_EVT_MODE_ONESHOT:
ctrl_outl(0, TMU0_TCOR);
......
arch/sh/lib/copy_page.S
浏览文件 @ c032a2de
......@@ -80,6 +80,11 @@ ENTRY(copy_page)
.section __ex_table, "a"; \
.long 9999b, 6000f ; \
.previous
#define EX_NO_POP(...) \
9999: __VA_ARGS__ ; \
.section __ex_table, "a"; \
.long 9999b, 6005f ; \
.previous
ENTRY(__copy_user)
! Check if small number of bytes
mov #11,r0
......@@ -139,9 +144,9 @@ EX( mov.b r1,@r4 )
bt 1f
2:
EX( mov.b @r5+,r0 )
EX_NO_POP( mov.b @r5+,r0 )
dt r6
EX( mov.b r0,@r4 )
EX_NO_POP( mov.b r0,@r4 )
bf/s 2b
add #1,r4
......@@ -150,7 +155,7 @@ EX( mov.b r0,@r4 )
# Exception handler:
.section .fixup, "ax"
6000:
6005:
mov.l 8000f,r1
mov r3,r0
jmp @r1
......
arch/sh/mm/Makefile_32
浏览文件 @ c032a2de
......@@ -2,7 +2,7 @@
# Makefile for the Linux SuperH-specific parts of the memory manager.
#
obj-y := init.o extable_32.o consistent.o
obj-y := init.o extable_32.o consistent.o mmap.o
ifndef CONFIG_CACHE_OFF
cache-$(CONFIG_CPU_SH2) := cache-sh2.o
......
arch/sh/mm/Makefile_64
浏览文件 @ c032a2de
......@@ -2,7 +2,7 @@
# Makefile for the Linux SuperH-specific parts of the memory manager.
#
obj-y := init.o consistent.o
obj-y := init.o consistent.o mmap.o
mmu-y := tlb-nommu.o pg-nommu.o extable_32.o
mmu-$(CONFIG_MMU) := fault_64.o ioremap_64.o tlbflush_64.o tlb-sh5.o \
......
arch/sh/mm/init.c
浏览文件 @ c032a2de
......@@ -137,6 +137,7 @@ void __init page_table_range_init(unsigned long start, unsigned long end,
void __init paging_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
unsigned long vaddr;
int nid;
/* We don't need to map the kernel through the TLB, as
......@@ -148,10 +149,15 @@ void __init paging_init(void)
* check for a null value. */
set_TTB(swapper_pg_dir);
/* Populate the relevant portions of swapper_pg_dir so that
/*
* Populate the relevant portions of swapper_pg_dir so that
* we can use the fixmap entries without calling kmalloc.
* pte's will be filled in by __set_fixmap(). */
page_table_range_init(FIXADDR_START, FIXADDR_TOP, swapper_pg_dir);
* pte's will be filled in by __set_fixmap().
*/
vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
page_table_range_init(vaddr, 0, swapper_pg_dir);
kmap_coherent_init();
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
......
arch/sh/mm/mmap.c 0 → 100644
浏览文件 @ c032a2de
/*
* arch/sh/mm/mmap.c
*
* Copyright (C) 2008 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/io.h>
#include <linux/mm.h>
#include <asm/page.h>
/*
* You really shouldn't be using read() or write() on /dev/mem. This
* might go away in the future.
*/
int valid_phys_addr_range(unsigned long addr, size_t count)
{
if (addr < __MEMORY_START)
return 0;
if (addr + count > __pa(high_memory))
return 0;
return 1;
}
int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
{
return 1;
}
arch/sh/mm/pg-sh4.c
浏览文件 @ c032a2de
......@@ -7,6 +7,7 @@
* Released under the terms of the GNU GPL v2.0.
*/
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/fs.h>
#include <linux/highmem.h>
......@@ -16,6 +17,20 @@
#define CACHE_ALIAS (current_cpu_data.dcache.alias_mask)
#define kmap_get_fixmap_pte(vaddr) \
pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))
static pte_t *kmap_coherent_pte;
void __init kmap_coherent_init(void)
{
unsigned long vaddr;
/* cache the first coherent kmap pte */
vaddr = __fix_to_virt(FIX_CMAP_BEGIN);
kmap_coherent_pte = kmap_get_fixmap_pte(vaddr);
}
static inline void *kmap_coherent(struct page *page, unsigned long addr)
{
enum fixed_addresses idx;
......@@ -34,6 +49,8 @@ static inline void *kmap_coherent(struct page *page, unsigned long addr)
update_mmu_cache(NULL, vaddr, pte);
set_pte(kmap_coherent_pte - (FIX_CMAP_END - idx), pte);
return (void *)vaddr;
}
......
arch/x86/Kconfig
浏览文件 @ c032a2de
......@@ -167,9 +167,12 @@ config GENERIC_PENDING_IRQ
config X86_SMP
bool
depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64)
select USE_GENERIC_SMP_HELPERS
default y
config USE_GENERIC_SMP_HELPERS
def_bool y
depends on SMP
config X86_32_SMP
def_bool y
depends on X86_32 && SMP
......@@ -239,21 +242,13 @@ config X86_FIND_SMP_CONFIG
def_bool y
depends on X86_MPPARSE || X86_VOYAGER
if ACPI
config X86_MPPARSE
def_bool y
bool "Enable MPS table"
bool "Enable MPS table" if ACPI
default y
depends on X86_LOCAL_APIC
help
For old smp systems that do not have proper acpi support. Newer systems
(esp with 64bit cpus) with acpi support, MADT and DSDT will override it
endif
if !ACPI
config X86_MPPARSE
def_bool y
depends on X86_LOCAL_APIC
endif
choice
prompt "Subarchitecture Type"
......
arch/x86/ia32/ia32_signal.c
浏览文件 @ c032a2de
......@@ -572,11 +572,6 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->dx = (unsigned long) &frame->info;
regs->cx = (unsigned long) &frame->uc;
/* Make -mregparm=3 work */
regs->ax = sig;
regs->dx = (unsigned long) &frame->info;
regs->cx = (unsigned long) &frame->uc;
loadsegment(ds, __USER32_DS);
loadsegment(es, __USER32_DS);
......
arch/x86/include/asm/acpi.h
浏览文件 @ c032a2de
......@@ -113,7 +113,6 @@ static inline void acpi_disable_pci(void)
acpi_pci_disabled = 1;
acpi_noirq_set();
}
extern int acpi_irq_balance_set(char *str);
/* routines for saving/restoring kernel state */
extern int acpi_save_state_mem(void);
......
arch/x86/include/asm/bitops.h
浏览文件 @ c032a2de
......@@ -168,7 +168,15 @@ static inline void __change_bit(int nr, volatile unsigned long *addr)
*/
static inline void change_bit(int nr, volatile unsigned long *addr)
{
asm volatile(LOCK_PREFIX "btc %1,%0" : ADDR : "Ir" (nr));
if (IS_IMMEDIATE(nr)) {
asm volatile(LOCK_PREFIX "xorb %1,%0"
: CONST_MASK_ADDR(nr, addr)
: "iq" ((u8)CONST_MASK(nr)));
} else {
asm volatile(LOCK_PREFIX "btc %1,%0"
: BITOP_ADDR(addr)
: "Ir" (nr));
}
}
/**
......
arch/x86/include/asm/byteorder.h
浏览文件 @ c032a2de
......@@ -4,26 +4,33 @@
#include <asm/types.h>
#include <linux/compiler.h>
#ifdef __GNUC__
#define __LITTLE_ENDIAN
#ifdef __i386__
static inline __attribute_const__ __u32 ___arch__swab32(__u32 x)
static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
{
#ifdef CONFIG_X86_BSWAP
asm("bswap %0" : "=r" (x) : "0" (x));
#else
#ifdef __i386__
# ifdef CONFIG_X86_BSWAP
asm("bswap %0" : "=r" (val) : "0" (val));
# else
asm("xchgb %b0,%h0\n\t" /* swap lower bytes */
"rorl $16,%0\n\t" /* swap words */
"xchgb %b0,%h0" /* swap higher bytes */
: "=q" (x)
: "0" (x));
: "=q" (val)
: "0" (val));
# endif
#else /* __i386__ */
asm("bswapl %0"
: "=r" (val)
: "0" (val));
#endif
return x;
return val;
}
#define __arch_swab32 __arch_swab32
static inline __attribute_const__ __u64 ___arch__swab64(__u64 val)
static inline __attribute_const__ __u64 __arch_swab64(__u64 val)
{
#ifdef __i386__
union {
struct {
__u32 a;
......@@ -32,50 +39,27 @@ static inline __attribute_const__ __u64 ___arch__swab64(__u64 val)
__u64 u;
} v;
v.u = val;
#ifdef CONFIG_X86_BSWAP
# ifdef CONFIG_X86_BSWAP
asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
: "=r" (v.s.a), "=r" (v.s.b)
: "0" (v.s.a), "1" (v.s.b));
#else
v.s.a = ___arch__swab32(v.s.a);
v.s.b = ___arch__swab32(v.s.b);
# else
v.s.a = __arch_swab32(v.s.a);
v.s.b = __arch_swab32(v.s.b);
asm("xchgl %0,%1"
: "=r" (v.s.a), "=r" (v.s.b)
: "0" (v.s.a), "1" (v.s.b));
#endif
# endif
return v.u;
}
#else /* __i386__ */
static inline __attribute_const__ __u64 ___arch__swab64(__u64 x)
{
asm("bswapq %0"
: "=r" (x)
: "0" (x));
return x;
}
static inline __attribute_const__ __u32 ___arch__swab32(__u32 x)
{
asm("bswapl %0"
: "=r" (x)
: "0" (x));
return x;
}
: "=r" (val)
: "0" (val));
return val;
#endif
}
#define __arch_swab64 __arch_swab64
/* Do not define swab16. Gcc is smart enough to recognize "C" version and
convert it into rotation or exhange. */
#define __arch__swab64(x) ___arch__swab64(x)
#define __arch__swab32(x) ___arch__swab32(x)
#define __BYTEORDER_HAS_U64__
#endif /* __GNUC__ */
#include <linux/byteorder/little_endian.h>
#include <linux/byteorder.h>
#endif /* _ASM_X86_BYTEORDER_H */
arch/x86/include/asm/iommu.h
浏览文件 @ c032a2de
......@@ -6,7 +6,6 @@ extern void no_iommu_init(void);
extern struct dma_mapping_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int dmar_disabled;
extern unsigned long iommu_nr_pages(unsigned long addr, unsigned long len);
......
arch/x86/include/asm/irq.h
浏览文件 @ c032a2de
......@@ -31,10 +31,6 @@ static inline int irq_canonicalize(int irq)
# endif
#endif
#ifdef CONFIG_IRQBALANCE
extern int irqbalance_disable(char *str);
#endif
#ifdef CONFIG_HOTPLUG_CPU
#include <linux/cpumask.h>
extern void fixup_irqs(cpumask_t map);
......
arch/x86/include/asm/irq_regs_32.h
浏览文件 @ c032a2de
......@@ -9,6 +9,8 @@
#include <asm/percpu.h>
#define ARCH_HAS_OWN_IRQ_REGS
DECLARE_PER_CPU(struct pt_regs *, irq_regs);
static inline struct pt_regs *get_irq_regs(void)
......
arch/x86/include/asm/tsc.h
浏览文件 @ c032a2de
......@@ -34,8 +34,6 @@ static inline cycles_t get_cycles(void)
static __always_inline cycles_t vget_cycles(void)
{
cycles_t cycles;
/*
* We only do VDSOs on TSC capable CPUs, so this shouldnt
* access boot_cpu_data (which is not VDSO-safe):
......@@ -44,11 +42,7 @@ static __always_inline cycles_t vget_cycles(void)
if (!cpu_has_tsc)
return 0;
#endif
rdtsc_barrier();
cycles = (cycles_t)__native_read_tsc();
rdtsc_barrier();
return cycles;
return (cycles_t)__native_read_tsc();
}
extern void tsc_init(void);
......
arch/x86/kernel/acpi/boot.c
浏览文件 @ c032a2de
......@@ -1343,7 +1343,6 @@ static void __init acpi_process_madt(void)
error = acpi_parse_madt_ioapic_entries();
if (!error) {
acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC;
acpi_irq_balance_set(NULL);
acpi_ioapic = 1;
smp_found_config = 1;
......
arch/x86/kernel/ds.c
浏览文件 @ c032a2de
......@@ -236,17 +236,33 @@ static inline struct ds_context *ds_alloc_context(struct task_struct *task)
struct ds_context *context = *p_context;
if (!context) {
spin_unlock(&ds_lock);
context = kzalloc(sizeof(*context), GFP_KERNEL);
if (!context)
if (!context) {
spin_lock(&ds_lock);
return NULL;
}
context->ds = kzalloc(ds_cfg.sizeof_ds, GFP_KERNEL);
if (!context->ds) {
kfree(context);
spin_lock(&ds_lock);
return NULL;
}
spin_lock(&ds_lock);
/*
* Check for race - another CPU could have allocated
* it meanwhile:
*/
if (*p_context) {
kfree(context->ds);
kfree(context);
return *p_context;
}
*p_context = context;
context->this = p_context;
......@@ -384,14 +400,15 @@ static int ds_request(struct task_struct *task, void *base, size_t size,
spin_lock(&ds_lock);
if (!check_tracer(task))
return -EPERM;
error = -ENOMEM;
context = ds_alloc_context(task);
if (!context)
goto out_unlock;
error = -EPERM;
if (!check_tracer(task))
goto out_unlock;
error = -EALREADY;
if (context->owner[qual] == current)
goto out_unlock;
......
arch/x86/kernel/early-quirks.c
浏览文件 @ c032a2de
......@@ -188,20 +188,6 @@ static void __init ati_bugs_contd(int num, int slot, int func)
}
#endif
#ifdef CONFIG_DMAR
static void __init intel_g33_dmar(int num, int slot, int func)
{
struct acpi_table_header *dmar_tbl;
acpi_status status;
status = acpi_get_table(ACPI_SIG_DMAR, 0, &dmar_tbl);
if (ACPI_SUCCESS(status)) {
printk(KERN_INFO "BIOS BUG: DMAR advertised on Intel G31/G33 chipset -- ignoring\n");
dmar_disabled = 1;
}
}
#endif
#define QFLAG_APPLY_ONCE 0x1
#define QFLAG_APPLIED 0x2
#define QFLAG_DONE (QFLAG_APPLY_ONCE|QFLAG_APPLIED)
......@@ -225,10 +211,6 @@ static struct chipset early_qrk[] __initdata = {
PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs },
{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs_contd },
#ifdef CONFIG_DMAR
{ PCI_VENDOR_ID_INTEL, 0x29c0,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, intel_g33_dmar },
#endif
{}
};
......
arch/x86/kernel/entry_64.S
浏览文件 @ c032a2de
......@@ -11,15 +11,15 @@
*
* NOTE: This code handles signal-recognition, which happens every time
* after an interrupt and after each system call.
*
* Normal syscalls and interrupts don't save a full stack frame, this is
*
* Normal syscalls and interrupts don't save a full stack frame, this is
* only done for syscall tracing, signals or fork/exec et.al.
*
* A note on terminology:
* - top of stack: Architecture defined interrupt frame from SS to RIP
* at the top of the kernel process stack.
*
* A note on terminology:
* - top of stack: Architecture defined interrupt frame from SS to RIP
* at the top of the kernel process stack.
* - partial stack frame: partially saved registers upto R11.
* - full stack frame: Like partial stack frame, but all register saved.
* - full stack frame: Like partial stack frame, but all register saved.
*
* Some macro usage:
* - CFI macros are used to generate dwarf2 unwind information for better
......@@ -142,7 +142,7 @@ END(mcount)
#ifndef CONFIG_PREEMPT
#define retint_kernel retint_restore_args
#endif
#endif
#ifdef CONFIG_PARAVIRT
ENTRY(native_usergs_sysret64)
......@@ -161,14 +161,14 @@ ENTRY(native_usergs_sysret64)
.endm
/*
* C code is not supposed to know about undefined top of stack. Every time
* a C function with an pt_regs argument is called from the SYSCALL based
* C code is not supposed to know about undefined top of stack. Every time
* a C function with an pt_regs argument is called from the SYSCALL based
* fast path FIXUP_TOP_OF_STACK is needed.
* RESTORE_TOP_OF_STACK syncs the syscall state after any possible ptregs
* manipulation.
*/
/* %rsp:at FRAMEEND */
*/
/* %rsp:at FRAMEEND */
.macro FIXUP_TOP_OF_STACK tmp
movq %gs:pda_oldrsp,\tmp
movq \tmp,RSP(%rsp)
......@@ -244,8 +244,8 @@ ENTRY(native_usergs_sysret64)
.endm
/*
* A newly forked process directly context switches into this.
*/
/* rdi: prev */
*/
/* rdi: prev */
ENTRY(ret_from_fork)
CFI_DEFAULT_STACK
push kernel_eflags(%rip)
......@@ -256,7 +256,7 @@ ENTRY(ret_from_fork)
GET_THREAD_INFO(%rcx)
testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT),TI_flags(%rcx)
jnz rff_trace
rff_action:
rff_action:
RESTORE_REST
testl $3,CS-ARGOFFSET(%rsp) # from kernel_thread?
je int_ret_from_sys_call
......@@ -267,7 +267,7 @@ rff_action:
rff_trace:
movq %rsp,%rdi
call syscall_trace_leave
GET_THREAD_INFO(%rcx)
GET_THREAD_INFO(%rcx)
jmp rff_action
CFI_ENDPROC
END(ret_from_fork)
......@@ -278,20 +278,20 @@ END(ret_from_fork)
* SYSCALL does not save anything on the stack and does not change the
* stack pointer.
*/
/*
* Register setup:
* Register setup:
* rax system call number
* rdi arg0
* rcx return address for syscall/sysret, C arg3
* rcx return address for syscall/sysret, C arg3
* rsi arg1
* rdx arg2
* rdx arg2
* r10 arg3 (--> moved to rcx for C)
* r8 arg4
* r9 arg5
* r11 eflags for syscall/sysret, temporary for C
* r12-r15,rbp,rbx saved by C code, not touched.
*
* r12-r15,rbp,rbx saved by C code, not touched.
*
* Interrupts are off on entry.
* Only called from user space.
*
......@@ -301,7 +301,7 @@ END(ret_from_fork)
* When user can change the frames always force IRET. That is because
* it deals with uncanonical addresses better. SYSRET has trouble
* with them due to bugs in both AMD and Intel CPUs.
*/
*/
ENTRY(system_call)
CFI_STARTPROC simple
......@@ -317,7 +317,7 @@ ENTRY(system_call)
*/
ENTRY(system_call_after_swapgs)
movq %rsp,%gs:pda_oldrsp
movq %rsp,%gs:pda_oldrsp
movq %gs:pda_kernelstack,%rsp
/*
* No need to follow this irqs off/on section - it's straight
......@@ -325,7 +325,7 @@ ENTRY(system_call_after_swapgs)
*/
ENABLE_INTERRUPTS(CLBR_NONE)
SAVE_ARGS 8,1
movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
movq %rcx,RIP-ARGOFFSET(%rsp)
CFI_REL_OFFSET rip,RIP-ARGOFFSET
GET_THREAD_INFO(%rcx)
......@@ -339,19 +339,19 @@ system_call_fastpath:
movq %rax,RAX-ARGOFFSET(%rsp)
/*
* Syscall return path ending with SYSRET (fast path)
* Has incomplete stack frame and undefined top of stack.
*/
* Has incomplete stack frame and undefined top of stack.
*/
ret_from_sys_call:
movl $_TIF_ALLWORK_MASK,%edi
/* edi: flagmask */
sysret_check:
sysret_check:
LOCKDEP_SYS_EXIT
GET_THREAD_INFO(%rcx)
DISABLE_INTERRUPTS(CLBR_NONE)
TRACE_IRQS_OFF
movl TI_flags(%rcx),%edx
andl %edi,%edx
jnz sysret_careful
jnz sysret_careful
CFI_REMEMBER_STATE
/*
* sysretq will re-enable interrupts:
......@@ -366,7 +366,7 @@ sysret_check:
CFI_RESTORE_STATE
/* Handle reschedules */
/* edx: work, edi: workmask */
/* edx: work, edi: workmask */
sysret_careful:
bt $TIF_NEED_RESCHED,%edx
jnc sysret_signal
......@@ -379,7 +379,7 @@ sysret_careful:
CFI_ADJUST_CFA_OFFSET -8
jmp sysret_check
/* Handle a signal */
/* Handle a signal */
sysret_signal:
TRACE_IRQS_ON
ENABLE_INTERRUPTS(CLBR_NONE)
......@@ -398,7 +398,7 @@ sysret_signal:
DISABLE_INTERRUPTS(CLBR_NONE)
TRACE_IRQS_OFF
jmp int_with_check
badsys:
movq $-ENOSYS,RAX-ARGOFFSET(%rsp)
jmp ret_from_sys_call
......@@ -437,7 +437,7 @@ sysret_audit:
#endif /* CONFIG_AUDITSYSCALL */
/* Do syscall tracing */
tracesys:
tracesys:
#ifdef CONFIG_AUDITSYSCALL
testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%rcx)
jz auditsys
......@@ -460,8 +460,8 @@ tracesys:
call *sys_call_table(,%rax,8)
movq %rax,RAX-ARGOFFSET(%rsp)
/* Use IRET because user could have changed frame */
/*
/*
* Syscall return path ending with IRET.
* Has correct top of stack, but partial stack frame.
*/
......@@ -505,18 +505,18 @@ int_very_careful:
TRACE_IRQS_ON
ENABLE_INTERRUPTS(CLBR_NONE)
SAVE_REST
/* Check for syscall exit trace */
/* Check for syscall exit trace */
testl $_TIF_WORK_SYSCALL_EXIT,%edx
jz int_signal
pushq %rdi
CFI_ADJUST_CFA_OFFSET 8
leaq 8(%rsp),%rdi # &ptregs -> arg1
leaq 8(%rsp),%rdi # &ptregs -> arg1
call syscall_trace_leave
popq %rdi
CFI_ADJUST_CFA_OFFSET -8
andl $~(_TIF_WORK_SYSCALL_EXIT|_TIF_SYSCALL_EMU),%edi
jmp int_restore_rest
int_signal:
testl $_TIF_DO_NOTIFY_MASK,%edx
jz 1f
......@@ -531,11 +531,11 @@ int_restore_rest:
jmp int_with_check
CFI_ENDPROC
END(system_call)
/*
/*
* Certain special system calls that need to save a complete full stack frame.
*/
*/
.macro PTREGSCALL label,func,arg
.globl \label
\label:
......@@ -572,7 +572,7 @@ ENTRY(ptregscall_common)
ret
CFI_ENDPROC
END(ptregscall_common)
ENTRY(stub_execve)
CFI_STARTPROC
popq %r11
......@@ -588,11 +588,11 @@ ENTRY(stub_execve)
jmp int_ret_from_sys_call
CFI_ENDPROC
END(stub_execve)
/*
* sigreturn is special because it needs to restore all registers on return.
* This cannot be done with SYSRET, so use the IRET return path instead.
*/
*/
ENTRY(stub_rt_sigreturn)
CFI_STARTPROC
addq $8, %rsp
......@@ -731,12 +731,12 @@ exit_intr:
GET_THREAD_INFO(%rcx)
testl $3,CS-ARGOFFSET(%rsp)
je retint_kernel
/* Interrupt came from user space */
/*
* Has a correct top of stack, but a partial stack frame
* %rcx: thread info. Interrupts off.
*/
*/
retint_with_reschedule:
movl $_TIF_WORK_MASK,%edi
retint_check:
......@@ -809,20 +809,20 @@ retint_careful:
pushq %rdi
CFI_ADJUST_CFA_OFFSET 8
call schedule
popq %rdi
popq %rdi
CFI_ADJUST_CFA_OFFSET -8
GET_THREAD_INFO(%rcx)
DISABLE_INTERRUPTS(CLBR_NONE)
TRACE_IRQS_OFF
jmp retint_check
retint_signal:
testl $_TIF_DO_NOTIFY_MASK,%edx
jz retint_swapgs
TRACE_IRQS_ON
ENABLE_INTERRUPTS(CLBR_NONE)
SAVE_REST
movq $-1,ORIG_RAX(%rsp)
movq $-1,ORIG_RAX(%rsp)
xorl %esi,%esi # oldset
movq %rsp,%rdi # &pt_regs
call do_notify_resume
......@@ -844,14 +844,14 @@ ENTRY(retint_kernel)
jnc retint_restore_args
call preempt_schedule_irq
jmp exit_intr
#endif
#endif
CFI_ENDPROC
END(common_interrupt)
/*
* APIC interrupts.
*/
*/
.macro apicinterrupt num,func
INTR_FRAME
pushq $~(\num)
......@@ -869,14 +869,14 @@ ENTRY(threshold_interrupt)
apicinterrupt THRESHOLD_APIC_VECTOR,mce_threshold_interrupt
END(threshold_interrupt)
#ifdef CONFIG_SMP
#ifdef CONFIG_SMP
ENTRY(reschedule_interrupt)
apicinterrupt RESCHEDULE_VECTOR,smp_reschedule_interrupt
END(reschedule_interrupt)
.macro INVALIDATE_ENTRY num
ENTRY(invalidate_interrupt\num)
apicinterrupt INVALIDATE_TLB_VECTOR_START+\num,smp_invalidate_interrupt
apicinterrupt INVALIDATE_TLB_VECTOR_START+\num,smp_invalidate_interrupt
END(invalidate_interrupt\num)
.endm
......@@ -915,22 +915,22 @@ END(error_interrupt)
ENTRY(spurious_interrupt)
apicinterrupt SPURIOUS_APIC_VECTOR,smp_spurious_interrupt
END(spurious_interrupt)
/*
* Exception entry points.
*/
*/
.macro zeroentry sym
INTR_FRAME
PARAVIRT_ADJUST_EXCEPTION_FRAME
pushq $0 /* push error code/oldrax */
pushq $0 /* push error code/oldrax */
CFI_ADJUST_CFA_OFFSET 8
pushq %rax /* push real oldrax to the rdi slot */
pushq %rax /* push real oldrax to the rdi slot */
CFI_ADJUST_CFA_OFFSET 8
CFI_REL_OFFSET rax,0
leaq \sym(%rip),%rax
jmp error_entry
CFI_ENDPROC
.endm
.endm
.macro errorentry sym
XCPT_FRAME
......@@ -1044,13 +1044,13 @@ paranoid_schedule\trace:
/*
* Exception entry point. This expects an error code/orig_rax on the stack
* and the exception handler in %rax.
*/
* and the exception handler in %rax.
*/
KPROBE_ENTRY(error_entry)
_frame RDI
CFI_REL_OFFSET rax,0
/* rdi slot contains rax, oldrax contains error code */
cld
cld
subq $14*8,%rsp
CFI_ADJUST_CFA_OFFSET (14*8)
movq %rsi,13*8(%rsp)
......@@ -1061,7 +1061,7 @@ KPROBE_ENTRY(error_entry)
CFI_REL_OFFSET rdx,RDX
movq %rcx,11*8(%rsp)
CFI_REL_OFFSET rcx,RCX
movq %rsi,10*8(%rsp) /* store rax */
movq %rsi,10*8(%rsp) /* store rax */
CFI_REL_OFFSET rax,RAX
movq %r8, 9*8(%rsp)
CFI_REL_OFFSET r8,R8
......@@ -1071,29 +1071,29 @@ KPROBE_ENTRY(error_entry)
CFI_REL_OFFSET r10,R10
movq %r11,6*8(%rsp)
CFI_REL_OFFSET r11,R11
movq %rbx,5*8(%rsp)
movq %rbx,5*8(%rsp)
CFI_REL_OFFSET rbx,RBX
movq %rbp,4*8(%rsp)
movq %rbp,4*8(%rsp)
CFI_REL_OFFSET rbp,RBP
movq %r12,3*8(%rsp)
movq %r12,3*8(%rsp)
CFI_REL_OFFSET r12,R12
movq %r13,2*8(%rsp)
movq %r13,2*8(%rsp)
CFI_REL_OFFSET r13,R13
movq %r14,1*8(%rsp)
movq %r14,1*8(%rsp)
CFI_REL_OFFSET r14,R14
movq %r15,(%rsp)
movq %r15,(%rsp)
CFI_REL_OFFSET r15,R15
xorl %ebx,%ebx
xorl %ebx,%ebx
testl $3,CS(%rsp)
je error_kernelspace
error_swapgs:
error_swapgs:
SWAPGS
error_sti:
TRACE_IRQS_OFF
movq %rdi,RDI(%rsp)
movq %rdi,RDI(%rsp)
CFI_REL_OFFSET rdi,RDI
movq %rsp,%rdi
movq ORIG_RAX(%rsp),%rsi /* get error code */
movq ORIG_RAX(%rsp),%rsi /* get error code */
movq $-1,ORIG_RAX(%rsp)
call *%rax
/* ebx: no swapgs flag (1: don't need swapgs, 0: need it) */
......@@ -1102,7 +1102,7 @@ error_exit:
RESTORE_REST
DISABLE_INTERRUPTS(CLBR_NONE)
TRACE_IRQS_OFF
GET_THREAD_INFO(%rcx)
GET_THREAD_INFO(%rcx)
testl %eax,%eax
jne retint_kernel
LOCKDEP_SYS_EXIT_IRQ
......@@ -1118,7 +1118,7 @@ error_kernelspace:
/* There are two places in the kernel that can potentially fault with
usergs. Handle them here. The exception handlers after
iret run with kernel gs again, so don't set the user space flag.
B stepping K8s sometimes report an truncated RIP for IRET
B stepping K8s sometimes report an truncated RIP for IRET
exceptions returning to compat mode. Check for these here too. */
leaq irq_return(%rip),%rcx
cmpq %rcx,RIP(%rsp)
......@@ -1130,17 +1130,17 @@ error_kernelspace:
je error_swapgs
jmp error_sti
KPROBE_END(error_entry)
/* Reload gs selector with exception handling */
/* edi: new selector */
/* edi: new selector */
ENTRY(native_load_gs_index)
CFI_STARTPROC
pushf
CFI_ADJUST_CFA_OFFSET 8
DISABLE_INTERRUPTS(CLBR_ANY | ~(CLBR_RDI))
SWAPGS
gs_change:
movl %edi,%gs
gs_change:
movl %edi,%gs
2: mfence /* workaround */
SWAPGS
popf
......@@ -1148,20 +1148,20 @@ gs_change:
ret
CFI_ENDPROC
ENDPROC(native_load_gs_index)
.section __ex_table,"a"
.align 8
.quad gs_change,bad_gs
.previous
.section .fixup,"ax"
/* running with kernelgs */
bad_gs:
bad_gs:
SWAPGS /* switch back to user gs */
xorl %eax,%eax
movl %eax,%gs
jmp 2b
.previous
.previous
/*
* Create a kernel thread.
*
......@@ -1184,7 +1184,7 @@ ENTRY(kernel_thread)
xorl %r8d,%r8d
xorl %r9d,%r9d
# clone now
call do_fork
movq %rax,RAX(%rsp)
......@@ -1195,14 +1195,14 @@ ENTRY(kernel_thread)
* so internally to the x86_64 port you can rely on kernel_thread()
* not to reschedule the child before returning, this avoids the need
* of hacks for example to fork off the per-CPU idle tasks.
* [Hopefully no generic code relies on the reschedule -AK]
* [Hopefully no generic code relies on the reschedule -AK]
*/
RESTORE_ALL
UNFAKE_STACK_FRAME
ret
CFI_ENDPROC
ENDPROC(kernel_thread)
child_rip:
pushq $0 # fake return address
CFI_STARTPROC
......@@ -1237,10 +1237,10 @@ ENDPROC(child_rip)
ENTRY(kernel_execve)
CFI_STARTPROC
FAKE_STACK_FRAME $0
SAVE_ALL
SAVE_ALL
movq %rsp,%rcx
call sys_execve
movq %rax, RAX(%rsp)
movq %rax, RAX(%rsp)
RESTORE_REST
testq %rax,%rax
je int_ret_from_sys_call
......@@ -1259,7 +1259,7 @@ ENTRY(coprocessor_error)
END(coprocessor_error)
ENTRY(simd_coprocessor_error)
zeroentry do_simd_coprocessor_error
zeroentry do_simd_coprocessor_error
END(simd_coprocessor_error)
ENTRY(device_not_available)
......@@ -1271,12 +1271,12 @@ KPROBE_ENTRY(debug)
INTR_FRAME
PARAVIRT_ADJUST_EXCEPTION_FRAME
pushq $0
CFI_ADJUST_CFA_OFFSET 8
CFI_ADJUST_CFA_OFFSET 8
paranoidentry do_debug, DEBUG_STACK
paranoidexit
KPROBE_END(debug)
/* runs on exception stack */
/* runs on exception stack */
KPROBE_ENTRY(nmi)
INTR_FRAME
PARAVIRT_ADJUST_EXCEPTION_FRAME
......@@ -1310,7 +1310,7 @@ ENTRY(bounds)
END(bounds)
ENTRY(invalid_op)
zeroentry do_invalid_op
zeroentry do_invalid_op
END(invalid_op)
ENTRY(coprocessor_segment_overrun)
......@@ -1365,7 +1365,7 @@ ENTRY(machine_check)
INTR_FRAME
PARAVIRT_ADJUST_EXCEPTION_FRAME
pushq $0
CFI_ADJUST_CFA_OFFSET 8
CFI_ADJUST_CFA_OFFSET 8
paranoidentry do_machine_check
jmp paranoid_exit1
CFI_ENDPROC
......
arch/x86/kernel/es7000_32.c
浏览文件 @ c032a2de
......@@ -250,31 +250,24 @@ int __init find_unisys_acpi_oem_table(unsigned long *oem_addr)
{
struct acpi_table_header *header = NULL;
int i = 0;
acpi_size tbl_size;
while (ACPI_SUCCESS(acpi_get_table_with_size("OEM1", i++, &header, &tbl_size))) {
while (ACPI_SUCCESS(acpi_get_table("OEM1", i++, &header))) {
if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) {
struct oem_table *t = (struct oem_table *)header;
oem_addrX = t->OEMTableAddr;
oem_size = t->OEMTableSize;
early_acpi_os_unmap_memory(header, tbl_size);
*oem_addr = (unsigned long)__acpi_map_table(oem_addrX,
oem_size);
return 0;
}
early_acpi_os_unmap_memory(header, tbl_size);
}
return -1;
}
void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
{
if (!oem_addr)
return;
__acpi_unmap_table((char *)oem_addr, oem_size);
}
#endif
......
arch/x86/kernel/kvmclock.c
浏览文件 @ c032a2de
......@@ -128,7 +128,7 @@ static int kvm_register_clock(char *txt)
}
#ifdef CONFIG_X86_LOCAL_APIC
static void kvm_setup_secondary_clock(void)
static void __devinit kvm_setup_secondary_clock(void)
{
/*
* Now that the first cpu already had this clocksource initialized,
......
arch/x86/kernel/tsc_sync.c
浏览文件 @ c032a2de
......@@ -46,7 +46,9 @@ static __cpuinit void check_tsc_warp(void)
cycles_t start, now, prev, end;
int i;
rdtsc_barrier();
start = get_cycles();
rdtsc_barrier();
/*
* The measurement runs for 20 msecs:
*/
......@@ -61,7 +63,9 @@ static __cpuinit void check_tsc_warp(void)
*/
__raw_spin_lock(&sync_lock);
prev = last_tsc;
rdtsc_barrier();
now = get_cycles();
rdtsc_barrier();
last_tsc = now;
__raw_spin_unlock(&sync_lock);
......
arch/x86/kernel/vsyscall_64.c
浏览文件 @ c032a2de
......@@ -128,7 +128,16 @@ static __always_inline void do_vgettimeofday(struct timeval * tv)
gettimeofday(tv,NULL);
return;
}
/*
* Surround the RDTSC by barriers, to make sure it's not
* speculated to outside the seqlock critical section and
* does not cause time warps:
*/
rdtsc_barrier();
now = vread();
rdtsc_barrier();
base = __vsyscall_gtod_data.clock.cycle_last;
mask = __vsyscall_gtod_data.clock.mask;
mult = __vsyscall_gtod_data.clock.mult;
......
arch/x86/kvm/Kconfig
浏览文件 @ c032a2de
......@@ -20,6 +20,8 @@ if VIRTUALIZATION
config KVM
tristate "Kernel-based Virtual Machine (KVM) support"
depends on HAVE_KVM
# for device assignment:
depends on PCI
select PREEMPT_NOTIFIERS
select MMU_NOTIFIER
select ANON_INODES
......
arch/x86/kvm/i8254.c
浏览文件 @ c032a2de
......@@ -548,8 +548,10 @@ struct kvm_pit *kvm_create_pit(struct kvm *kvm)
mutex_lock(&kvm->lock);
pit->irq_source_id = kvm_request_irq_source_id(kvm);
mutex_unlock(&kvm->lock);
if (pit->irq_source_id < 0)
if (pit->irq_source_id < 0) {
kfree(pit);
return NULL;
}
mutex_init(&pit->pit_state.lock);
mutex_lock(&pit->pit_state.lock);
......
arch/x86/kvm/mmu.c
浏览文件 @ c032a2de
此差异已折叠。
arch/x86/kvm/vmx.c
浏览文件 @ c032a2de
此差异已折叠。
arch/x86/kvm/vmx.h
浏览文件 @ c032a2de
此差异已折叠。
arch/x86/mach-voyager/voyager_smp.c
浏览文件 @ c032a2de
此差异已折叠。
arch/x86/mm/init_32.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/Kconfig
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/Makefile
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/ac.c
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此差异已折叠。
drivers/acpi/acpi_memhotplug.c
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drivers/acpi/battery.c
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此差异已折叠。
drivers/acpi/bus.c
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此差异已折叠。
drivers/acpi/button.c
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drivers/acpi/cm_sbs.c
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此差异已折叠。
drivers/acpi/container.c
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此差异已折叠。
drivers/acpi/debug.c
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drivers/acpi/ec.c
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drivers/acpi/events/evgpe.c
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drivers/acpi/events/evxfevnt.c
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drivers/acpi/fan.c
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此差异已折叠。
drivers/acpi/glue.c
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此差异已折叠。
drivers/acpi/pci_link.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/pci_root.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/power.c
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drivers/acpi/processor_core.c
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drivers/acpi/processor_idle.c
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drivers/acpi/processor_perflib.c
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drivers/acpi/processor_thermal.c
浏览文件 @ c032a2de
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drivers/acpi/processor_throttling.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/reboot.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/scan.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/sleep/proc.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/sleep/wakeup.c
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drivers/acpi/system.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/tables/tbfadt.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/thermal.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/video.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/video_detect.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/acpi/wmi.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/ata/libata-sff.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/block/Kconfig
浏览文件 @ c032a2de
此差异已折叠。
drivers/block/floppy.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/block/ub.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/char/Kconfig
浏览文件 @ c032a2de
此差异已折叠。
drivers/char/ipmi/ipmi_msghandler.c
浏览文件 @ c032a2de
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drivers/char/ipmi/ipmi_si_intf.c
浏览文件 @ c032a2de
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drivers/char/sonypi.c
浏览文件 @ c032a2de
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drivers/char/specialix.c
浏览文件 @ c032a2de
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drivers/dma/dmaengine.c
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drivers/dma/dmatest.c
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drivers/dma/iop-adma.c
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drivers/edac/i5000_edac.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/gpio/Kconfig
浏览文件 @ c032a2de
此差异已折叠。
drivers/gpio/Makefile
浏览文件 @ c032a2de
此差异已折叠。
drivers/gpio/xilinx_gpio.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/hwmon/Kconfig
浏览文件 @ c032a2de
此差异已折叠。
drivers/hwmon/Makefile
浏览文件 @ c032a2de
此差异已折叠。
drivers/hwmon/adt7462.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/hwmon/adt7470.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/hwmon/adt7473.c
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此差异已折叠。
drivers/hwmon/applesmc.c
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此差异已折叠。
drivers/hwmon/ibmaem.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/hwmon/lis3lv02d.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/hwmon/lis3lv02d.h 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/hwmon/lm85.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/i2c/busses/i2c-sh_mobile.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/idle/Kconfig
浏览文件 @ c032a2de
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drivers/infiniband/hw/mlx4/mr.c
浏览文件 @ c032a2de
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drivers/infiniband/hw/nes/nes.c
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drivers/infiniband/hw/nes/nes_hw.h
浏览文件 @ c032a2de
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drivers/md/dm-mpath.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/md/dm-raid1.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/md/dm-stripe.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/md/dm.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/media/video/tvaudio.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/Kconfig
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/Makefile
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/acer-wmi.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/asus-laptop.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/c2port/Kconfig 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/c2port/Makefile 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/c2port/c2port-duramar2150.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/c2port/core.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/compal-laptop.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/eeepc-laptop.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/fujitsu-laptop.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/ics932s401.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/intel_menlow.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/msi-laptop.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/sony-laptop.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/misc/thinkpad_acpi.c
浏览文件 @ c032a2de
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drivers/mtd/maps/cdb89712.c
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drivers/mtd/maps/h720x-flash.c
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drivers/net/bnx2.c
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此差异已折叠。
drivers/net/cxgb3/cxgb3_main.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/net/cxgb3/t3_hw.c
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此差异已折叠。
drivers/net/mlx4/mlx4.h
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drivers/net/myri10ge/myri10ge.c
浏览文件 @ c032a2de
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drivers/net/niu.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/net/smc911x.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/net/usb/asix.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/net/wireless/rtl8187_dev.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/pci/pci-acpi.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/rtc/Kconfig
浏览文件 @ c032a2de
此差异已折叠。
drivers/rtc/Makefile
浏览文件 @ c032a2de
此差异已折叠。
drivers/rtc/rtc-ds1390.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/rtc/rtc-rx8581.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/rtc/rtc-wm8350.c 0 → 100644
浏览文件 @ c032a2de
此差异已折叠。
drivers/s390/block/dasd.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/s390/char/sclp_cmd.c
浏览文件 @ c032a2de
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drivers/s390/cio/device.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/s390/kvm/kvm_virtio.c
浏览文件 @ c032a2de
此差异已折叠。
drivers/s390/scsi/zfcp_aux.c
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drivers/s390/scsi/zfcp_ccw.c
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drivers/s390/scsi/zfcp_dbf.c
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此差异已折叠。
drivers/s390/scsi/zfcp_dbf.h
浏览文件 @ c032a2de
此差异已折叠。
drivers/s390/scsi/zfcp_erp.c
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drivers/s390/scsi/zfcp_fsf.c
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drivers/s390/scsi/zfcp_scsi.c
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drivers/scsi/dpt_i2o.c
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drivers/scsi/megaraid.c
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drivers/scsi/megaraid.h
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drivers/scsi/qla2xxx/qla_def.h
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drivers/scsi/qla2xxx/qla_init.c
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drivers/scsi/qla2xxx/qla_mbx.c
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drivers/scsi/qla2xxx/qla_os.c
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drivers/scsi/qla2xxx/qla_sup.c
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drivers/scsi/qla2xxx/qla_version.h
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drivers/scsi/scsi_error.c
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drivers/serial/sh-sci.c
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drivers/serial/sh-sci.h
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drivers/spi/atmel_spi.c
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drivers/usb/class/cdc-acm.c
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drivers/usb/core/message.c
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drivers/usb/core/sysfs.c
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drivers/usb/core/urb.c
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drivers/usb/gadget/f_acm.c
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drivers/usb/host/Kconfig
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drivers/usb/host/ehci-hcd.c
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drivers/usb/host/ehci-ps3.c
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drivers/usb/host/ehci-sched.c
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drivers/usb/host/isp1760-if.c
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drivers/usb/host/ohci-ps3.c
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drivers/usb/host/r8a66597-hcd.c
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drivers/usb/misc/sisusbvga/sisusb.c
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drivers/usb/misc/vstusb.c
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drivers/usb/musb/musb_core.c
浏览文件 @ c032a2de
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drivers/usb/musb/musb_debug.h
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drivers/usb/musb/musb_host.c
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drivers/usb/musb/musb_host.h
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drivers/usb/musb/omap2430.c
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drivers/usb/musb/tusb6010.c
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drivers/usb/serial/cp2101.c
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drivers/usb/serial/option.c
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drivers/usb/storage/Kconfig
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drivers/usb/storage/unusual_devs.h
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drivers/w1/masters/Kconfig
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drivers/w1/masters/Makefile
浏览文件 @ c032a2de
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drivers/w1/masters/omap_hdq.c 0 → 100644
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drivers/w1/slaves/Kconfig
浏览文件 @ c032a2de
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drivers/w1/slaves/Makefile
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drivers/w1/slaves/w1_bq27000.c 0 → 100644
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drivers/w1/w1.h
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drivers/w1/w1_io.c
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drivers/xen/balloon.c
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fs/dlm/lockspace.c
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fs/ext3/super.c
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fs/inotify.c
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fs/namespace.c
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include/acpi/acpi_bus.h
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include/acpi/acpi_drivers.h
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include/acpi/acpixf.h
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include/acpi/actypes.h
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include/linux/acpi.h
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include/linux/c2port.h 0 → 100644
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include/linux/hrtimer.h
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include/linux/inotify.h
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include/linux/kernel.h
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include/linux/mfd/wm8350/rtc.h
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include/linux/ratelimit.h
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include/linux/serial_core.h
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include/linux/slab.h
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include/linux/usb.h
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include/video/atmel_lcdc.h
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init/Kconfig
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kernel/audit_tree.c
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kernel/auditfilter.c
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kernel/cgroup_freezer.c
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kernel/exit.c
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kernel/fork.c
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kernel/hrtimer.c
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kernel/kprobes.c
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kernel/sched.c
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mm/hugetlb.c
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mm/mlock.c
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mm/mmap.c
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mm/page_alloc.c
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mm/page_cgroup.c
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mm/vmscan.c
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net/9p/Kconfig
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net/compat.c
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net/ipv4/tcp_htcp.c
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net/mac80211/mlme.c
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sound/pci/hda/patch_sigmatel.c
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此差异已折叠。
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