- 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
- 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
- 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/
- 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/
- 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
- 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/
- 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
- 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
- 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
- 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
- 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
--- /dev/null
+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.
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.
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
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
--- /dev/null
+ 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
--- /dev/null
+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.
* SA E200
* SA E200i
* SA E500
+ * SA P700m
* SA P212
* SA P410
* SA P410i
* SA P411
* SA P812
+ * SA P712m
+ * SA P711m
Detecting drive failures:
-------------------------
--- /dev/null
+ 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
- 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
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
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.
<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
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.
Works. Use "Insert file..." or external editor.
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Gmail (Web GUI)
+
+If you just have to use Gmail to send patches, it CAN be made to work. It
+requires a bit of external help, though.
+
+The first problem is that Gmail converts tabs to spaces. This will
+totally break your patches. To prevent this, you have to use a different
+editor. There is a firefox extension called "ViewSourceWith"
+(https://addons.mozilla.org/en-US/firefox/addon/394) which allows you to
+edit any text box in the editor of your choice. Configure it to launch
+your favorite editor. When you want to send a patch, use this technique.
+Once you have crafted your messsage + patch, save and exit the editor,
+which should reload the Gmail edit box. GMAIL WILL PRESERVE THE TABS.
+Hoorah. Apparently you can cut-n-paste literal tabs, but Gmail will
+convert those to spaces upon sending!
+
+The second problem is that Gmail converts tabs to spaces on replies. If
+you reply to a patch, don't expect to be able to apply it as a patch.
+
+The last problem is that Gmail will base64-encode any message that has a
+non-ASCII character. That includes things like European names. Be aware.
+
+Gmail is not convenient for lkml patches, but CAN be made to work.
+
###
---------------------------
-What: old tuner-3036 i2c driver
-When: 2.6.28
-Why: This driver is for VERY old i2c-over-parallel port teletext receiver
- boxes. Rather then spending effort on converting this driver to V4L2,
- and since it is extremely unlikely that anyone still uses one of these
- devices, it was decided to drop it.
-Who: Hans Verkuil <hverkuil@xs4all.nl>
- Mauro Carvalho Chehab <mchehab@infradead.org>
-
- ---------------------------
-
-What: V4L2 dpc7146 driver
-When: 2.6.28
-Why: Old driver for the dpc7146 demonstration board that is no longer
- relevant. The last time this was tested on actual hardware was
- probably around 2002. Since this is a driver for a demonstration
- board the decision was made to remove it rather than spending a
- lot of effort continually updating this driver to stay in sync
- with the latest internal V4L2 or I2C API.
-Who: Hans Verkuil <hverkuil@xs4all.nl>
- Mauro Carvalho Chehab <mchehab@infradead.org>
-
----------------------------
-
What: PCMCIA control ioctl (needed for pcmcia-cs [cardmgr, cardctl])
When: November 2005
Files: drivers/pcmcia/: pcmcia_ioctl.c
VFAT MOUNT OPTIONS
----------------------------------------------------------------------
+uid=### -- Set the owner of all files on this filesystem.
+ The default is the uid of current process.
+
+gid=### -- Set the group of all files on this filesystem.
+ The default is the gid of current process.
+
umask=### -- The permission mask (for files and directories, see umask(1)).
The default is the umask of current process.
characters on FAT filesystem.
By default, FAT_DEFAULT_CODEPAGE setting is used.
-iocharset=name -- Character set to use for converting between the
+iocharset=<name> -- Character set to use for converting between the
encoding is used for user visible filename and 16 bit
Unicode characters. Long filenames are stored on disk
in Unicode format, but Unix for the most part doesn't
r: relaxed, case insensitive
n: normal, default setting, currently case insensitive
+nocase -- This was deprecated for vfat. Use shortname=win95 instead.
+
shortname=lower|win95|winnt|mixed
-- Shortname display/create setting.
lower: convert to lowercase for display,
tz=UTC -- Interpret timestamps as UTC rather than local time.
This option disables the conversion of timestamps
between local time (as used by Windows on FAT) and UTC
- (which Linux uses internally). This is particuluarly
+ (which Linux uses internally). This is particularly
useful when mounting devices (like digital cameras)
that are set to UTC in order to avoid the pitfalls of
local time.
+showexec -- If set, the execute permission bits of the file will be
+ allowed only if the extension part of the name is .EXE,
+ .COM, or .BAT. Not set by default.
+
+debug -- Can be set, but unused by the current implementation.
+
+sys_immutable -- If set, ATTR_SYS attribute on FAT is handled as
+ IMMUTABLE flag on Linux. Not set by default.
+
+flush -- If set, the filesystem will try to flush to disk more
+ early than normal. Not set by default.
+
+rodir -- FAT has the ATTR_RO (read-only) attribute. But on Windows,
+ the ATTR_RO of the directory will be just ignored actually,
+ and is used by only applications as flag. E.g. it's setted
+ for the customized folder.
+
+ If you want to use ATTR_RO as read-only flag even for
+ the directory, set this option.
+
<bool>: 0,1,yes,no,true,false
TODO
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.
Reviewers: Elias Oltmanns, Randy Dunlap, Andrew Morton,
John Kacur, and David Teigland.
-Written for: 2.6.27-rc1
+Written for: 2.6.28-rc2
Introduction
------------
Note: all time values are in microseconds.
- current_tracer : This is used to set or display the current tracer
+ current_tracer: This is used to set or display the current tracer
that is configured.
- available_tracers : This holds the different types of tracers that
+ available_tracers: This holds the different types of tracers that
have been compiled into the kernel. The tracers
listed here can be configured by echoing their name
into current_tracer.
- tracing_enabled : This sets or displays whether the current_tracer
+ tracing_enabled: This sets or displays whether the current_tracer
is activated and tracing or not. Echo 0 into this
file to disable the tracer or 1 to enable it.
- trace : This file holds the output of the trace in a human readable
+ trace: This file holds the output of the trace in a human readable
format (described below).
- latency_trace : This file shows the same trace but the information
+ latency_trace: This file shows the same trace but the information
is organized more to display possible latencies
in the system (described below).
- trace_pipe : The output is the same as the "trace" file but this
+ trace_pipe: The output is the same as the "trace" file but this
file is meant to be streamed with live tracing.
Reads from this file will block until new data
is retrieved. Unlike the "trace" and "latency_trace"
tracer is not adding more data, they will display
the same information every time they are read.
- iter_ctrl : This file lets the user control the amount of data
+ iter_ctrl: This file lets the user control the amount of data
that is displayed in one of the above output
files.
- trace_max_latency : Some of the tracers record the max latency.
+ trace_max_latency: Some of the tracers record the max latency.
For example, the time interrupts are disabled.
This time is saved in this file. The max trace
will also be stored, and displayed by either
only be recorded if the latency is greater than
the value in this file. (in microseconds)
- trace_entries : This sets or displays the number of trace
- entries each CPU buffer can hold. The tracer buffers
- are the same size for each CPU. The displayed number
- is the size of the CPU buffer and not total size. The
+ trace_entries: This sets or displays the number of bytes each CPU
+ buffer can hold. The tracer buffers are the same size
+ for each CPU. The displayed number is the size of the
+ CPU buffer and not total size of all buffers. The
trace buffers are allocated in pages (blocks of memory
that the kernel uses for allocation, usually 4 KB in size).
- Since each entry is smaller than a page, if the last
- allocated page has room for more entries than were
- requested, the rest of the page is used to allocate
- entries.
+ If the last page allocated has room for more bytes
+ than requested, the rest of the page will be used,
+ making the actual allocation bigger than requested.
+ (Note, the size may not be a multiple of the page size due
+ to buffer managment overhead.)
This can only be updated when the current_tracer
- is set to "none".
+ is set to "nop".
- NOTE: It is planned on changing the allocated buffers
- from being the number of possible CPUS to
- the number of online CPUS.
-
- tracing_cpumask : This is a mask that lets the user only trace
+ tracing_cpumask: This is a mask that lets the user only trace
on specified CPUS. The format is a hex string
representing the CPUS.
- set_ftrace_filter : When dynamic ftrace is configured in (see the
+ set_ftrace_filter: When dynamic ftrace is configured in (see the
section below "dynamic ftrace"), the code is dynamically
modified (code text rewrite) to disable calling of the
function profiler (mcount). This lets tracing be configured
be traced. If a function exists in both set_ftrace_filter
and set_ftrace_notrace, the function will _not_ be traced.
- available_filter_functions : When a function is encountered the first
- time by the dynamic tracer, it is recorded and
- later the call is converted into a nop. This file
- lists the functions that have been recorded
- by the dynamic tracer and these functions can
- be used to set the ftrace filter by the above
- "set_ftrace_filter" file. (See the section "dynamic ftrace"
- below for more details).
+ available_filter_functions: This lists the functions that ftrace
+ has processed and can trace. These are the function
+ names that you can pass to "set_ftrace_filter" or
+ "set_ftrace_notrace". (See the section "dynamic ftrace"
+ below for more details.)
The Tracers
Here is the list of current tracers that may be configured.
- ftrace - function tracer that uses mcount to trace all functions.
+ function - function tracer that uses mcount to trace all functions.
sched_switch - traces the context switches between tasks.
the highest priority task to get scheduled after
it has been woken up.
- none - This is not a tracer. To remove all tracers from tracing
- simply echo "none" into current_tracer.
+ nop - This is not a tracer. To remove all tracers from tracing
+ simply echo "nop" into current_tracer.
Examples of using the tracer
Here is an example of the output format of the file "trace"
--------
-# tracer: ftrace
+# tracer: function
#
# TASK-PID CPU# TIMESTAMP FUNCTION
# | | | | |
--------
A header is printed with the tracer name that is represented by the trace.
-In this case the tracer is "ftrace". Then a header showing the format. Task
+In this case the tracer is "function". Then a header showing the format. Task
name "bash", the task PID "4251", the CPU that it was running on
"01", the timestamp in <secs>.<usecs> format, the function name that was
traced "path_put" and the parent function that called this function
has been set. We do not see the 'N' until we switch back to the task's
assigned stack.
-ftrace
-------
+function
+--------
-ftrace is not only the name of the tracing infrastructure, but it
-is also a name of one of the tracers. The tracer is the function
-tracer. Enabling the function tracer can be done from the
-debug file system. Make sure the ftrace_enabled is set otherwise
-this tracer is a nop.
+This tracer is the function tracer. Enabling the function tracer
+can be done from the debug file system. Make sure the ftrace_enabled is
+set; otherwise this tracer is a nop.
# sysctl kernel.ftrace_enabled=1
- # echo ftrace > /debug/tracing/current_tracer
+ # echo function > /debug/tracing/current_tracer
# echo 1 > /debug/tracing/tracing_enabled
# usleep 1
# echo 0 > /debug/tracing/tracing_enabled
# cat /debug/tracing/trace
-# tracer: ftrace
+# tracer: function
#
# TASK-PID CPU# TIMESTAMP FUNCTION
# | | | | |
[...]
-Note: ftrace uses ring buffers to store the above entries. The newest data
-may overwrite the oldest data. Sometimes using echo to stop the trace
-is not sufficient because the tracing could have overwritten the data
-that you wanted to record. For this reason, it is sometimes better to
+Note: function tracer uses ring buffers to store the above entries.
+The newest data may overwrite the oldest data. Sometimes using echo to
+stop the trace is not sufficient because the tracing could have overwritten
+the data that you wanted to record. For this reason, it is sometimes better to
disable tracing directly from a program. This allows you to stop the
tracing at the point that you hit the part that you are interested in.
To disable the tracing directly from a C program, something like following
of pointing to a simple return. (Enabling FTRACE will include the
-pg switch in the compiling of the kernel.)
-When dynamic ftrace is initialized, it calls kstop_machine to make
-the machine act like a uniprocessor so that it can freely modify code
-without worrying about other processors executing that same code. At
-initialization, the mcount calls are changed to call a "record_ip"
-function. After this, the first time a kernel function is called,
-it has the calling address saved in a hash table.
-
-Later on the ftraced kernel thread is awoken and will again call
-kstop_machine if new functions have been recorded. The ftraced thread
-will change all calls to mcount to "nop". Just calling mcount
-and having mcount return has shown a 10% overhead. By converting
-it to a nop, there is no measurable overhead to the system.
+At compile time every C file object is run through the
+recordmcount.pl script (located in the scripts directory). This
+script will process the C object using objdump to find all the
+locations in the .text section that call mcount. (Note, only
+the .text section is processed, since processing other sections
+like .init.text may cause races due to those sections being freed).
+
+A new section called "__mcount_loc" is created that holds references
+to all the mcount call sites in the .text section. This section is
+compiled back into the original object. The final linker will add
+all these references into a single table.
+
+On boot up, before SMP is initialized, the dynamic ftrace code
+scans this table and updates all the locations into nops. It also
+records the locations, which are added to the available_filter_functions
+list. Modules are processed as they are loaded and before they are
+executed. When a module is unloaded, it also removes its functions from
+the ftrace function list. This is automatic in the module unload
+code, and the module author does not need to worry about it.
+
+When tracing is enabled, kstop_machine is called to prevent races
+with the CPUS executing code being modified (which can cause the
+CPU to do undesireable things), and the nops are patched back
+to calls. But this time, they do not call mcount (which is just
+a function stub). They now call into the ftrace infrastructure.
One special side-effect to the recording of the functions being
traced is that we can now selectively choose which functions we
We can see that there's no more lock or preempt tracing.
-ftraced
--------
-
-As mentioned above, when dynamic ftrace is configured in, a kernel
-thread wakes up once a second and checks to see if there are mcount
-calls that need to be converted into nops. If there are not any, then
-it simply goes back to sleep. But if there are some, it will call
-kstop_machine to convert the calls to nops.
-
-There may be a case in which you do not want this added latency.
-Perhaps you are doing some audio recording and this activity might
-cause skips in the playback. There is an interface to disable
-and enable the "ftraced" kernel thread.
-
- # echo 0 > /debug/tracing/ftraced_enabled
-
-This will disable the calling of kstop_machine to update the
-mcount calls to nops. Remember that there is a large overhead
-to calling mcount. Without this kernel thread, that overhead will
-exist.
-
-If there are recorded calls to mcount, any write to the ftraced_enabled
-file will cause the kstop_machine to run. This means that a
-user can manually perform the updates when they want to by simply
-echoing a '0' into the ftraced_enabled file.
-
-The updates are also done at the beginning of enabling a tracer
-that uses ftrace function recording.
-
-
trace_pipe
----------
This means that subsequent reads will be different. The trace
is live.
- # echo ftrace > /debug/tracing/current_tracer
+ # echo function > /debug/tracing/current_tracer
# cat /debug/tracing/trace_pipe > /tmp/trace.out &
[1] 4153
# echo 1 > /debug/tracing/tracing_enabled
# usleep 1
# echo 0 > /debug/tracing/tracing_enabled
# cat /debug/tracing/trace
-# tracer: ftrace
+# tracer: function
#
# TASK-PID CPU# TIMESTAMP FUNCTION
# | | | | |
Note, reading the trace_pipe file will block until more input is added.
By changing the tracer, trace_pipe will issue an EOF. We needed
-to set the ftrace tracer _before_ cating the trace_pipe file.
+to set the function tracer _before_ we "cat" the trace_pipe file.
trace entries
65620
Note, to modify this, you must have tracing completely disabled. To do that,
-echo "none" into the current_tracer. If the current_tracer is not set
-to "none", an EINVAL error will be returned.
+echo "nop" into the current_tracer. If the current_tracer is not set
+to "nop", an EINVAL error will be returned.
- # echo none > /debug/tracing/current_tracer
+ # echo nop > /debug/tracing/current_tracer
# echo 100000 > /debug/tracing/trace_entries
# cat /debug/tracing/trace_entries
100045
--- /dev/null
+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.
+
--- /dev/null
+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.
+
--- /dev/null
+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!
--- /dev/null
+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
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.
digiepca= [HW,SERIAL]
See drivers/char/README.epca and
- Documentation/digiepca.txt.
+ Documentation/serial/digiepca.txt.
disable_mtrr_cleanup [X86]
enable_mtrr_cleanup [X86]
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
Format:
<cpu number>,...,<cpu number>
or
- <cpu number>-<cpu number> (must be a positive range in ascending order)
+ <cpu number>-<cpu number>
+ (must be a positive range in ascending order)
or a mixture
<cpu number>,...,<cpu number>-<cpu number>
+
This option can be used to specify one or more CPUs
to isolate from the general SMP balancing and scheduling
- algorithms. The only way to move a process onto or off
- an "isolated" CPU is via the CPU affinity syscalls.
+ algorithms. You can move a process onto or off an
+ "isolated" CPU via the CPU affinity syscalls or cpuset.
<cpu number> begins at 0 and the maximum value is
"number of CPUs in system - 1".
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>
Valid arguments: on, off
Default: on
- noirqbalance [X86-32,SMP,KNL] Disable kernel irq balancing
-
noirqdebug [X86-32] Disables the code which attempts to detect and
disable unhandled interrupt sources.
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
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.
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.
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).
<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
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
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=
VI - System-on-a-chip devices and nodes
1) Defining child nodes of an SOC
2) Representing devices without a current OF specification
- a) MDIO IO device
- b) Gianfar-compatible ethernet nodes
- c) PHY nodes
- d) Interrupt controllers
- e) I2C
- f) Freescale SOC USB controllers
- g) Freescale SOC SEC Security Engines
- h) Board Control and Status (BCSR)
- i) Freescale QUICC Engine module (QE)
- j) CFI or JEDEC memory-mapped NOR flash
- k) Global Utilities Block
- l) Freescale Communications Processor Module
- m) Chipselect/Local Bus
- n) 4xx/Axon EMAC ethernet nodes
- o) Xilinx IP cores
- p) Freescale Synchronous Serial Interface
- q) USB EHCI controllers
- r) MDIO on GPIOs
- s) SPI busses
+ a) PHY nodes
+ b) Interrupt controllers
+ c) CFI or JEDEC memory-mapped NOR flash
+ d) 4xx/Axon EMAC ethernet nodes
+ e) Xilinx IP cores
+ f) USB EHCI controllers
+ g) MDIO on GPIOs
+ h) SPI busses
VII - Marvell Discovery mv64[345]6x System Controller chips
1) The /system-controller node
big-endian;
};
- r) Freescale Display Interface Unit
-
- The Freescale DIU is a LCD controller, with proper hardware, it can also
- drive DVI monitors.
-
- Required properties:
- - compatible : should be "fsl-diu".
- - reg : should contain at least address and length of the DIU register
- set.
- - Interrupts : one DIU interrupt should be describe here.
-
- Example (MPC8610HPCD)
- display@2c000 {
- compatible = "fsl,diu";
- reg = <0x2c000 100>;
- interrupts = <72 2>;
- interrupt-parent = <&mpic>;
- };
-
- s) Freescale on board FPGA
-
- This is the memory-mapped registers for on board FPGA.
-
- Required properities:
- - compatible : should be "fsl,fpga-pixis".
- - reg : should contain the address and the lenght of the FPPGA register
- set.
-
- Example (MPC8610HPCD)
- board-control@e8000000 {
- compatible = "fsl,fpga-pixis";
- reg = <0xe8000000 32>;
- };
-
- r) MDIO on GPIOs
+ g) MDIO on GPIOs
Currently defined compatibles:
- virtual,gpio-mdio
&qe_pio_c 6>;
};
- s) SPI (Serial Peripheral Interface) busses
+ h) SPI (Serial Peripheral Interface) busses
SPI busses can be described with a node for the SPI master device
and a set of child nodes for each SPI slave on the bus. For this
--- /dev/null
+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>
--- /dev/null
+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.
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
sound card) should be possible, but there is no code yet ...
vbi
- - some code present. Doesn't crash any more, but also doesn't
- work yet ...
+ - Code present. Works for NTSC closed caption. PAL and other
+ TV norms may or may not work.
how to add support for new cards
--- /dev/null
+Driver for USB radios for the Silicon Labs Si470x FM Radio Receivers
+
+Copyright (c) 2008 Tobias Lorenz <tobias.lorenz@gmx.net>
+
+
+Information from Silicon Labs
+=============================
+Silicon Laboratories is the manufacturer of the radio ICs, that nowadays are the
+most often used radio receivers in cell phones. Usually they are connected with
+I2C. But SiLabs also provides a reference design, which integrates this IC,
+together with a small microcontroller C8051F321, to form a USB radio.
+Part of this reference design is also a radio application in binary and source
+code. The software also contains an automatic firmware upgrade to the most
+current version. Information on these can be downloaded here:
+http://www.silabs.com/usbradio
+
+
+Supported ICs
+=============
+The following ICs have a very similar register set, so that they are or will be
+supported somewhen by the driver:
+- Si4700: FM radio receiver
+- Si4701: FM radio receiver, RDS Support
+- Si4702: FM radio receiver
+- Si4703: FM radio receiver, RDS Support
+- Si4704: FM radio receiver, no external antenna required
+- Si4705: FM radio receiver, no external antenna required, RDS support, Dig I/O
+- Si4706: Enhanced FM RDS/TMC radio receiver, no external antenna required, RDS
+ Support
+- Si4707: Dedicated weather band radio receiver with SAME decoder, RDS Support
+- Si4708: Smallest FM receivers
+- Si4709: Smallest FM receivers, RDS Support
+More information on these can be downloaded here:
+http://www.silabs.com/products/mcu/Pages/USBFMRadioRD.aspx
+
+
+Supported USB devices
+=====================
+Currently the following USB radios (vendor:product) with the Silicon Labs si470x
+chips are known to work:
+- 10c4:818a: Silicon Labs USB FM Radio Reference Design
+- 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music) (RDX-155-EF)
+- 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
+
+
+Software
+========
+Testing is usually done with most application under Debian/testing:
+- fmtools - Utility for managing FM tuner cards
+- gnomeradio - FM-radio tuner for the GNOME desktop
+- gradio - GTK FM radio tuner
+- kradio - Comfortable Radio Application for KDE
+- radio - ncurses-based radio application
+
+There is also a library libv4l, which can be used. It's going to have a function
+for frequency seeking, either by using hardware functionality as in radio-si470x
+or by implementing a function as we currently have in every of the mentioned
+programs. Somewhen the radio programs should make use of libv4l.
+
+For processing RDS information, there is a project ongoing at:
+http://rdsd.berlios.de/
+
+There is currently no project for making TMC sentences human readable.
+
+
+Audio Listing
+=============
+USB Audio is provided by the ALSA snd_usb_audio module. It is recommended to
+also select SND_USB_AUDIO, as this is required to get sound from the radio. For
+listing you have to redirect the sound, for example using one of the following
+commands.
+
+If you just want to test audio (very poor quality):
+cat /dev/dsp1 > /dev/dsp
+
+If you use OSS try:
+sox -2 --endian little -r 96000 -t oss /dev/dsp1 -t oss /dev/dsp
+
+If you use arts try:
+arecord -D hw:1,0 -r96000 -c2 -f S16_LE | artsdsp aplay -B -
+
+
+Module Parameters
+=================
+After loading the module, you still have access to some of them in the sysfs
+mount under /sys/module/radio_si470x/parameters. The contents of read-only files
+(0444) are not updated, even if space, band and de are changed using private
+video controls. The others are runtime changeable.
+
+
+Errors
+======
+Increase tune_timeout, if you often get -EIO errors.
+
+When timed out or band limit is reached, hw_freq_seek returns -EAGAIN.
+
+If you get any errors from snd_usb_audio, please report them to the ALSA people.
+
+
+Open Issues
+===========
+V4L minor device allocation and parameter setting is not perfect. A solution is
+currently under discussion.
+
+There is an USB interface for downloading/uploading new firmware images. Support
+for it can be implemented using the request_firmware interface.
+
+There is a RDS interrupt mode. The driver is already using the same interface
+for polling RDS information, but is currently not using the interrupt mode.
+
+There is a LED interface, which can be used to override the LED control
+programmed in the firmware. This can be made available using the LED support
+functions in the kernel.
+
+
+Other useful information and links
+==================================
+http://www.silabs.com/usbradio
--- /dev/null
+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
+
W: http://xf.iksaif.net/acpi4asus
S: Maintained
-ASYNCHRONOUS TRANSFERS/TRANSFORMS API
+ASYNCHRONOUS TRANSFERS/TRANSFORMS (IOAT) API
P: Dan Williams
M: dan.j.williams@intel.com
P: Maciej Sosnowski
W: http://www.kernel.org/pub/linux/kernel/people/rml/hdaps/
S: Maintained
+GSPCA FINEPIX SUBDRIVER
+P: Frank Zago
+M: frank@zago.net
+L: video4linux-list@redhat.com
+S: Maintained
+
+GSPCA M5602 SUBDRIVER
+P: Erik Andren
+M: erik.andren@gmail.com
+L: video4linux-list@redhat.com
+S: Maintained
+
+GSPCA PAC207 SONIXB SUBDRIVER
+P: Hans de Goede
+M: hdegoede@redhat.com
+L: video4linux-list@redhat.com
+S: Maintained
+
+GSPCA T613 SUBDRIVER
+P: Leandro Costantino
+M: lcostantino@gmail.com
+L: video4linux-list@redhat.com
+S: Maintained
+
+GSPCA USB WEBCAM DRIVER
+P: Jean-Francois Moine
+M: moinejf@free.fr
+W: http://moinejf.free.fr
+L: video4linux-list@redhat.com
+S: Maintained
+
HARDWARE MONITORING
L: lm-sensors@lm-sensors.org
W: http://www.lm-sensors.org/
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
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
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
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 28
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc5
NAME = Killer Bat of Doom
# *DOCUMENTATION*
Instruction-Based Sampling (IBS) is a new profiling
technique that provides rich, precise program performance
information. IBS is introduced by AMD Family10h processors
- (AMD Opteron Quad-Core processor “Barcelona”) to overcome
+ (AMD Opteron Quad-Core processor "Barcelona") to overcome
the limitations of conventional performance counter
sampling.
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;
+}
/**
{
/* 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;
}
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;
}
#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
};
/* 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);
* The module space lives between the addresses given by TASK_SIZE
* and PAGE_OFFSET - it must be within 32MB of the kernel text.
*/
-#define MODULE_END (PAGE_OFFSET)
-#define MODULE_START (MODULE_END - 16*1048576)
+#define MODULES_END (PAGE_OFFSET)
+#define MODULES_VADDR (MODULES_END - 16*1048576)
-#if TASK_SIZE > MODULE_START
+#if TASK_SIZE > MODULES_VADDR
#error Top of user space clashes with start of module space
#endif
* Since we use sections to map it, this macro replaces the physical address
* with its virtual address while keeping offset from the base section.
*/
-#define XIP_VIRT_ADDR(physaddr) (MODULE_START + ((physaddr) & 0x000fffff))
+#define XIP_VIRT_ADDR(physaddr) (MODULES_VADDR + ((physaddr) & 0x000fffff))
/*
* Allow 16MB-aligned ioremap pages
/*
* The module can be at any place in ram in nommu mode.
*/
-#define MODULE_END (END_MEM)
-#define MODULE_START (PHYS_OFFSET)
+#define MODULES_END (END_MEM)
+#define MODULES_VADDR (PHYS_OFFSET)
#endif /* !CONFIG_MMU */
#define CR_U (1 << 22) /* Unaligned access operation */
#define CR_XP (1 << 23) /* Extended page tables */
#define CR_VE (1 << 24) /* Vectored interrupts */
+#define CR_EE (1 << 25) /* Exception (Big) Endian */
+#define CR_TRE (1 << 28) /* TEX remap enable */
+#define CR_AFE (1 << 29) /* Access flag enable */
+#define CR_TE (1 << 30) /* Thumb exception enable */
/*
* This is used to ensure the compiler did actually allocate the register we
eflags = x->e_flags;
if ((eflags & EF_ARM_EABI_MASK) == EF_ARM_EABI_UNKNOWN) {
+ unsigned int flt_fmt;
+
/* APCS26 is only allowed if the CPU supports it */
if ((eflags & EF_ARM_APCS_26) && !(elf_hwcap & HWCAP_26BIT))
return 0;
+ flt_fmt = eflags & (EF_ARM_VFP_FLOAT | EF_ARM_SOFT_FLOAT);
+
/* VFP requires the supporting code */
- if ((eflags & EF_ARM_VFP_FLOAT) && !(elf_hwcap & HWCAP_VFP))
+ if (flt_fmt == EF_ARM_VFP_FLOAT && !(elf_hwcap & HWCAP_VFP))
return 0;
}
return 1;
/*
* The XIP kernel text is mapped in the module area for modules and
* some other stuff to work without any indirect relocations.
- * MODULE_START is redefined here and not in asm/memory.h to avoid
+ * MODULES_VADDR is redefined here and not in asm/memory.h to avoid
* recompiling the whole kernel when CONFIG_XIP_KERNEL is turned on/off.
*/
extern void _etext;
-#undef MODULE_START
-#define MODULE_START (((unsigned long)&_etext + ~PGDIR_MASK) & PGDIR_MASK)
+#undef MODULES_VADDR
+#define MODULES_VADDR (((unsigned long)&_etext + ~PGDIR_MASK) & PGDIR_MASK)
#endif
#ifdef CONFIG_MMU
if (!size)
return NULL;
- area = __get_vm_area(size, VM_ALLOC, MODULE_START, MODULE_END);
+ area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
if (!area)
return NULL;
#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
#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
*/
.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,
#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
#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
#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
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;
}
gpmc_l3_clk = clk_get(NULL, ck);
if (IS_ERR(gpmc_l3_clk)) {
printk(KERN_ERR "Could not get GPMC clock %s\n", ck);
- return -ENODEV;
+ BUG();
}
gpmc_base = ioremap(l, SZ_4K);
if (!gpmc_base) {
clk_put(gpmc_l3_clk);
printk(KERN_ERR "Could not get GPMC register memory\n");
- return -ENOMEM;
+ BUG();
}
- BUG_ON(IS_ERR(gpmc_l3_clk));
-
l = gpmc_read_reg(GPMC_REVISION);
printk(KERN_INFO "GPMC revision %d.%d\n", (l >> 4) & 0x0f, l & 0x0f);
/* Set smart idle mode and automatic L3 clock gating */
static struct clk mmci_clk = {
.name = "MCLK",
- .rate = 33000000,
+ .rate = 24000000,
};
int clk_register(struct clk *clk)
#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
static struct clk mmci_clk = {
.name = "MCLK",
- .rate = 33000000,
+ .rate = 24000000,
};
int clk_register(struct clk *clk)
#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
/*
* 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);
}
/*
* 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;
/*
* Clean and invalidate partial last cache line.
*/
- if (end & (CACHE_LINE_SIZE - 1)) {
+ if (start < end && (end & (CACHE_LINE_SIZE - 1))) {
xsc3_l2_clean_pa(end & ~(CACHE_LINE_SIZE - 1));
xsc3_l2_inv_pa(end & ~(CACHE_LINE_SIZE - 1));
end &= ~(CACHE_LINE_SIZE - 1);
/*
* Invalidate all full cache lines between 'start' and 'end'.
*/
- while (start != end) {
+ while (start < end) {
xsc3_l2_inv_pa(start);
start += CACHE_LINE_SIZE;
}
#endif
#define PROT_PTE_DEVICE L_PTE_PRESENT|L_PTE_YOUNG|L_PTE_DIRTY|L_PTE_WRITE
-#define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_XN|PMD_SECT_AP_WRITE
+#define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_AP_WRITE
static struct mem_type mem_types[] = {
[MT_DEVICE] = { /* Strongly ordered / ARMv6 shared device */
.prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_SHARED |
L_PTE_SHARED,
.prot_l1 = PMD_TYPE_TABLE,
- .prot_sect = PROT_SECT_DEVICE | PMD_SECT_UNCACHED,
+ .prot_sect = PROT_SECT_DEVICE | PMD_SECT_S,
.domain = DOMAIN_IO,
},
[MT_DEVICE_NONSHARED] = { /* ARMv6 non-shared device */
.prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_NONSHARED,
.prot_l1 = PMD_TYPE_TABLE,
- .prot_sect = PROT_SECT_DEVICE | PMD_SECT_TEX(2),
+ .prot_sect = PROT_SECT_DEVICE,
.domain = DOMAIN_IO,
},
[MT_DEVICE_CACHED] = { /* ioremap_cached */
[MT_DEVICE_WC] = { /* ioremap_wc */
.prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_WC,
.prot_l1 = PMD_TYPE_TABLE,
- .prot_sect = PROT_SECT_DEVICE | PMD_SECT_BUFFERABLE,
+ .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] = {
#endif
/*
- * On non-Xscale3 ARMv5-and-older systems, use CB=01
- * (Uncached/Buffered) for ioremap_wc() mappings. On XScale3
- * and ARMv6+, use TEXCB=00100 mappings (Inner/Outer Uncacheable
- * in xsc3 parlance, Uncached Normal in ARMv6 parlance).
+ * Strip out features not present on earlier architectures.
+ * Pre-ARMv5 CPUs don't have TEX bits. Pre-ARMv6 CPUs or those
+ * without extended page tables don't have the 'Shared' bit.
*/
- if (cpu_is_xsc3() || cpu_arch >= CPU_ARCH_ARMv6) {
- mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1);
- mem_types[MT_DEVICE_WC].prot_sect &= ~PMD_SECT_BUFFERABLE;
- }
+ if (cpu_arch < CPU_ARCH_ARMv5)
+ for (i = 0; i < ARRAY_SIZE(mem_types); i++)
+ mem_types[i].prot_sect &= ~PMD_SECT_TEX(7);
+ if ((cpu_arch < CPU_ARCH_ARMv6 || !(cr & CR_XP)) && !cpu_is_xsc3())
+ for (i = 0; i < ARRAY_SIZE(mem_types); i++)
+ mem_types[i].prot_sect &= ~PMD_SECT_S;
/*
- * ARMv5 and lower, bit 4 must be set for page tables.
- * (was: cache "update-able on write" bit on ARM610)
- * However, Xscale cores require this bit to be cleared.
+ * ARMv5 and lower, bit 4 must be set for page tables (was: cache
+ * "update-able on write" bit on ARM610). However, Xscale and
+ * Xscale3 require this bit to be cleared.
*/
- if (cpu_is_xscale()) {
+ if (cpu_is_xscale() || cpu_is_xsc3()) {
for (i = 0; i < ARRAY_SIZE(mem_types); i++) {
mem_types[i].prot_sect &= ~PMD_BIT4;
mem_types[i].prot_l1 &= ~PMD_BIT4;
}
}
+ /*
+ * Mark the device areas according to the CPU/architecture.
+ */
+ if (cpu_is_xsc3() || (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP))) {
+ if (!cpu_is_xsc3()) {
+ /*
+ * Mark device regions on ARMv6+ as execute-never
+ * to prevent speculative instruction fetches.
+ */
+ mem_types[MT_DEVICE].prot_sect |= PMD_SECT_XN;
+ mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_XN;
+ mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_XN;
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_XN;
+ }
+ if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) {
+ /*
+ * For ARMv7 with TEX remapping,
+ * - shared device is SXCB=1100
+ * - nonshared device is SXCB=0100
+ * - write combine device mem is SXCB=0001
+ * (Uncached Normal memory)
+ */
+ mem_types[MT_DEVICE].prot_sect |= PMD_SECT_TEX(1);
+ mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_TEX(1);
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_BUFFERABLE;
+ } else if (cpu_is_xsc3()) {
+ /*
+ * For Xscale3,
+ * - shared device is TEXCB=00101
+ * - nonshared device is TEXCB=01000
+ * - write combine device mem is TEXCB=00100
+ * (Inner/Outer Uncacheable in xsc3 parlance)
+ */
+ mem_types[MT_DEVICE].prot_sect |= PMD_SECT_TEX(1) | PMD_SECT_BUFFERED;
+ mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_TEX(2);
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1);
+ } else {
+ /*
+ * For ARMv6 and ARMv7 without TEX remapping,
+ * - shared device is TEXCB=00001
+ * - nonshared device is TEXCB=01000
+ * - write combine device mem is TEXCB=00100
+ * (Uncached Normal in ARMv6 parlance).
+ */
+ mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED;
+ mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_TEX(2);
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1);
+ }
+ } else {
+ /*
+ * On others, write combining is "Uncached/Buffered"
+ */
+ mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_BUFFERABLE;
+ }
+
+ /*
+ * Now deal with the memory-type mappings
+ */
cp = &cache_policies[cachepolicy];
vecs_pgprot = kern_pgprot = user_pgprot = cp->pte;
* Enable CPU-specific coherency if supported.
* (Only available on XSC3 at the moment.)
*/
- if (arch_is_coherent()) {
- if (cpu_is_xsc3()) {
- mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
- mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
- }
- }
+ if (arch_is_coherent() && cpu_is_xsc3())
+ mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
/*
* ARMv6 and above have extended page tables.
mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
- /*
- * Mark the device area as "shared device"
- */
- mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED;
-
#ifdef CONFIG_SMP
/*
* Mark memory with the "shared" attribute for SMP systems
mem_types[MT_LOW_VECTORS].prot_pte |= vecs_pgprot;
mem_types[MT_HIGH_VECTORS].prot_pte |= vecs_pgprot;
- if (cpu_arch < CPU_ARCH_ARMv5)
- mem_types[MT_MINICLEAN].prot_sect &= ~PMD_SECT_TEX(1);
-
pgprot_user = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | user_pgprot);
pgprot_kernel = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG |
L_PTE_DIRTY | L_PTE_WRITE |
/*
* Clear out all the mappings below the kernel image.
*/
- for (addr = 0; addr < MODULE_START; addr += PGDIR_SIZE)
+ for (addr = 0; addr < MODULES_VADDR; addr += PGDIR_SIZE)
pmd_clear(pmd_off_k(addr));
#ifdef CONFIG_XIP_KERNEL
*/
#ifdef CONFIG_XIP_KERNEL
map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & SECTION_MASK);
- map.virtual = MODULE_START;
+ map.virtual = MODULES_VADDR;
map.length = ((unsigned long)&_etext - map.virtual + ~SECTION_MASK) & SECTION_MASK;
map.type = MT_ROM;
create_mapping(&map);
orr r3, r3, r2
orr r3, r3, #PTE_EXT_AP0 | 2
- tst r2, #1 << 4
+ tst r1, #1 << 4
orrne r3, r3, #PTE_EXT_TEX(1)
tst r1, #L_PTE_WRITE
mov pc, lr @ return to head.S:__ret
ENDPROC(__v7_setup)
- /*
- * V X F I D LR
- * .... ...E PUI. .T.T 4RVI ZFRS BLDP WCAM
- * rrrr rrrx xxx0 0101 xxxx xxxx x111 xxxx < forced
- * 0 110 0011 1.00 .111 1101 < we want
+ /* AT
+ * TFR EV X F I D LR
+ * .EEE ..EE PUI. .T.T 4RVI ZFRS BLDP WCAM
+ * rxxx rrxx xxx0 0101 xxxx xxxx x111 xxxx < forced
+ * 1 0 110 0011 1.00 .111 1101 < we want
*/
.type v7_crval, #object
v7_crval:
#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),
if (c->id != 0)
sprintf(p, ":%d", c->id);
d = debugfs_create_dir(s, pa ? pa->dent : clk_debugfs_root);
- if (IS_ERR(d))
- return PTR_ERR(d);
+ if (!d)
+ return -ENOMEM;
c->dent = d;
d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount);
- if (IS_ERR(d)) {
- err = PTR_ERR(d);
+ if (!d) {
+ err = -ENOMEM;
goto err_out;
}
d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate);
- if (IS_ERR(d)) {
- err = PTR_ERR(d);
+ if (!d) {
+ err = -ENOMEM;
goto err_out;
}
d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags);
- if (IS_ERR(d)) {
- err = PTR_ERR(d);
+ if (!d) {
+ err = -ENOMEM;
goto err_out;
}
return 0;
int err;
d = debugfs_create_dir("clock", NULL);
- if (IS_ERR(d))
- return PTR_ERR(d);
+ if (!d)
+ return -ENOMEM;
clk_debugfs_root = d;
list_for_each_entry(c, &clocks, node) {
#include <mach/omap34xx.h>
#endif
-#define INTCPS_SIR_IRQ_OFFSET 0x0040 /* Active interrupt number */
+#define INTCPS_SIR_IRQ_OFFSET 0x0040 /* Active interrupt offset */
+#define ACTIVEIRQ_MASK 0x7f /* Active interrupt bits */
.macro disable_fiq
.endm
cmp \irqnr, #0x0
2222:
ldrne \irqnr, [\base, #INTCPS_SIR_IRQ_OFFSET]
+ and \irqnr, \irqnr, #ACTIVEIRQ_MASK /* Clear spurious bits */
.endm
/* External TWL4030 gpio interrupts are optional */
#define TWL4030_GPIO_IRQ_BASE TWL4030_PWR_IRQ_END
-#ifdef CONFIG_TWL4030_GPIO
+#ifdef CONFIG_GPIO_TWL4030
#define TWL4030_GPIO_NR_IRQS 18
#else
#define TWL4030_GPIO_NR_IRQS 0
select ACPI_NUMA
select SWIOTLB
select PCI_MSI
+ select DMAR
help
This selects the system type of your hardware. A "generic" kernel
will run on any supported IA-64 system. However, if you configure
endmenu
-menu "Power management and ACPI"
+menu "Power management and ACPI options"
source "kernel/power/Kconfig"
source "drivers/Kconfig"
+source "arch/ia64/hp/sim/Kconfig"
+
config MSPEC
tristate "Memory special operations driver"
depends on IA64
source "fs/Kconfig"
+source "arch/ia64/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
source "arch/ia64/kvm/Kconfig"
source "lib/Kconfig"
config IOMMU_HELPER
def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
-
-source "arch/ia64/hp/sim/Kconfig"
-
-source "arch/ia64/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
*/
#include <linux/device.h>
+#include <linux/swiotlb.h>
#include <asm/machvec.h>
/* swiotlb declarations & definitions: */
extern int swiotlb_late_init_with_default_size (size_t size);
-extern ia64_mv_dma_alloc_coherent swiotlb_alloc_coherent;
-extern ia64_mv_dma_free_coherent swiotlb_free_coherent;
-extern ia64_mv_dma_map_single_attrs swiotlb_map_single_attrs;
-extern ia64_mv_dma_unmap_single_attrs swiotlb_unmap_single_attrs;
-extern ia64_mv_dma_map_sg_attrs swiotlb_map_sg_attrs;
-extern ia64_mv_dma_unmap_sg_attrs swiotlb_unmap_sg_attrs;
-extern ia64_mv_dma_supported swiotlb_dma_supported;
-extern ia64_mv_dma_mapping_error swiotlb_dma_mapping_error;
/* hwiommu declarations & definitions: */
# endif /* __KERNEL__ */
-/*
- * Enabling BIO_VMERGE_BOUNDARY forces us to turn off I/O MMU bypassing. It is said that
- * BIO-level virtual merging can give up to 4% performance boost (not verified for ia64).
- * On the other hand, we know that I/O MMU bypassing gives ~8% performance improvement on
- * SPECweb-like workloads on zx1-based machines. Thus, for now we favor I/O MMU bypassing
- * over BIO-level virtual merging.
- */
-extern unsigned long ia64_max_iommu_merge_mask;
-#if 1
-#define BIO_VMERGE_BOUNDARY 0
-#else
-/*
- * It makes no sense at all to have this BIO_VMERGE_BOUNDARY macro here. Should be
- * replaced by dma_merge_mask() or something of that sort. Note: the only way
- * BIO_VMERGE_BOUNDARY is used is to mask off bits. Effectively, our definition gets
- * expanded into:
- *
- * addr & ((ia64_max_iommu_merge_mask + 1) - 1) == (addr & ia64_max_iommu_vmerge_mask)
- *
- * which is precisely what we want.
- */
-#define BIO_VMERGE_BOUNDARY (ia64_max_iommu_merge_mask + 1)
-#endif
-
#endif /* _ASM_IA64_IO_H */
#define _ASM_IA64_MACHVEC_H
#include <linux/types.h>
+#include <linux/swiotlb.h>
/* forward declarations: */
struct device;
# endif /* CONFIG_IA64_GENERIC */
/*
- * Declare default routines which aren't declared anywhere else:
- */
-extern ia64_mv_dma_init swiotlb_init;
-extern ia64_mv_dma_alloc_coherent swiotlb_alloc_coherent;
-extern ia64_mv_dma_free_coherent swiotlb_free_coherent;
-extern ia64_mv_dma_map_single swiotlb_map_single;
-extern ia64_mv_dma_map_single_attrs swiotlb_map_single_attrs;
-extern ia64_mv_dma_unmap_single swiotlb_unmap_single;
-extern ia64_mv_dma_unmap_single_attrs swiotlb_unmap_single_attrs;
-extern ia64_mv_dma_map_sg swiotlb_map_sg;
-extern ia64_mv_dma_map_sg_attrs swiotlb_map_sg_attrs;
-extern ia64_mv_dma_unmap_sg swiotlb_unmap_sg;
-extern ia64_mv_dma_unmap_sg_attrs swiotlb_unmap_sg_attrs;
-extern ia64_mv_dma_sync_single_for_cpu swiotlb_sync_single_for_cpu;
-extern ia64_mv_dma_sync_sg_for_cpu swiotlb_sync_sg_for_cpu;
-extern ia64_mv_dma_sync_single_for_device swiotlb_sync_single_for_device;
-extern ia64_mv_dma_sync_sg_for_device swiotlb_sync_sg_for_device;
-extern ia64_mv_dma_mapping_error swiotlb_dma_mapping_error;
-extern ia64_mv_dma_supported swiotlb_dma_supported;
-
-/*
* Define default versions so we can extend machvec for new platforms without having
* to update the machvec files for all existing platforms.
*/
*/
#define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1))
#define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))
-#define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1))
#ifdef CONFIG_NUMA
extern void call_pernode_memory (unsigned long start, unsigned long len, void *func);
#define sal_log_severity_fatal 1
#define sal_log_severity_corrected 2
+/*
+ * Error Recovery Info (ERI) bit decode. From SAL Spec section B.2.2 Table B-3
+ * Error Section Error_Recovery_Info Field Definition.
+ */
+#define ERI_NOT_VALID 0x0 /* Error Recovery Field is not valid */
+#define ERI_NOT_ACCESSIBLE 0x30 /* Resource not accessible */
+#define ERI_CONTAINMENT_WARN 0x22 /* Corrupt data propagated */
+#define ERI_UNCORRECTED_ERROR 0x20 /* Uncorrected error */
+#define ERI_COMPONENT_RESET 0x24 /* Component must be reset */
+#define ERI_CORR_ERROR_LOG 0x21 /* Corrected error, needs logging */
+#define ERI_CORR_ERROR_THRESH 0x29 /* Corrected error threshold exceeded */
+
/* Definition of log section header structures */
typedef struct sal_log_sec_header {
efi_guid_t guid; /* Unique Section ID */
sal_log_revision_t revision; /* Major and Minor revision of Section */
- u16 reserved;
+ u8 error_recovery_info; /* Platform error recovery status */
+ u8 reserved;
u32 len; /* Section length */
} sal_log_section_hdr_t;
#define SN_SAL_SET_CPU_NUMBER 0x02000068
#define SN_SAL_KERNEL_LAUNCH_EVENT 0x02000069
+#define SN_SAL_WATCHLIST_ALLOC 0x02000070
+#define SN_SAL_WATCHLIST_FREE 0x02000071
/*
* Service-specific constants
SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0);
return rv.status;
}
+
+union sn_watchlist_u {
+ u64 val;
+ struct {
+ u64 blade : 16,
+ size : 32,
+ filler : 16;
+ };
+};
+
+static inline int
+sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,
+ unsigned long *intr_mmr_offset)
+{
+ struct ia64_sal_retval rv;
+ unsigned long addr;
+ union sn_watchlist_u size_blade;
+ int watchlist;
+
+ addr = (unsigned long)mq;
+ size_blade.size = mq_size;
+ size_blade.blade = blade;
+
+ /*
+ * bios returns watchlist number or negative error number.
+ */
+ ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr,
+ size_blade.val, (u64)intr_mmr_offset,
+ (u64)&watchlist, 0, 0, 0);
+ if (rv.status < 0)
+ return rv.status;
+
+ return watchlist;
+}
+
+static inline int
+sn_mq_watchlist_free(int blade, int watchlist_num)
+{
+ struct ia64_sal_retval rv;
+ ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade,
+ watchlist_num, 0, 0, 0, 0, 0);
+ return rv.status;
+}
#endif /* _ASM_IA64_SN_SN_SAL_H */
return 0;
}
+int __init early_acpi_boot_init(void)
+{
+ int ret;
+
+ /*
+ * do a partial walk of MADT to determine how many CPUs
+ * we have including offline CPUs
+ */
+ if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) {
+ printk(KERN_ERR PREFIX "Can't find MADT\n");
+ return 0;
+ }
+
+ ret = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
+ acpi_parse_lsapic, NR_CPUS);
+ if (ret < 1)
+ printk(KERN_ERR PREFIX
+ "Error parsing MADT - no LAPIC entries\n");
+
+ return 0;
+}
+
+
+
int __init acpi_boot_init(void)
{
printk(KERN_ERR PREFIX
"Error parsing LAPIC address override entry\n");
- if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, acpi_parse_lsapic, NR_CPUS)
- < 1)
- printk(KERN_ERR PREFIX
- "Error parsing MADT - no LAPIC entries\n");
-
if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, acpi_parse_lapic_nmi, 0)
< 0)
printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
#include <asm/machvec.h>
#include <linux/dma-mapping.h>
-#include <asm/machvec.h>
#include <asm/system.h>
#ifdef CONFIG_DMAR
#include <linux/kernel.h>
-#include <linux/string.h>
#include <asm/page.h>
#include <asm/iommu.h>
}
#endif
-#ifdef CONFIG_CRASH_KERNEL
+#ifdef CONFIG_CRASH_DUMP
if (reserve_elfcorehdr(&rsvd_region[n].start,
&rsvd_region[n].end) == 0)
n++;
#ifdef CONFIG_ACPI
/* Initialize the ACPI boot-time table parser */
acpi_table_init();
+ early_acpi_boot_init();
# ifdef CONFIG_ACPI_NUMA
acpi_numa_init();
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
+ prefill_possible_map();
+#endif
per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ?
32 : cpus_weight(early_cpu_possible_map)),
additional_cpus > 0 ? additional_cpus : 0);
setup_per_cpu_areas (void)
{
/* start_kernel() requires this... */
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
- prefill_possible_map();
-#endif
}
/*
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---
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);
vcpu->mmio_needed = 0;
}
r = __vcpu_run(vcpu, kvm_run);
-
+out:
if (vcpu->sigset_active)
sigprocmask(SIG_SETMASK, &sigsaved, NULL);
#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); \
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);
(min(end, __pa(MAX_DMA_ADDRESS)) - start) >>PAGE_SHIFT;
#endif
start = GRANULEROUNDDOWN(start);
- start = ORDERROUNDDOWN(start);
end = GRANULEROUNDUP(end);
mem_data[node].max_pfn = max(mem_data[node].max_pfn,
end >> PAGE_SHIFT);
#ifdef CONFIG_IA64_SGI_UV
int sn_prom_type;
+long sn_partition_id;
+EXPORT_SYMBOL(sn_partition_id);
+long sn_coherency_id;
+EXPORT_SYMBOL_GPL(sn_coherency_id);
+long sn_region_size;
+EXPORT_SYMBOL(sn_region_size);
#endif
struct redir_addr {
{
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;
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
#include <asm/asm-offsets.h>
#if 0
-#define kdebug(FMT, ...) printk(KERN_DEBUG FMT, ##__VA_ARGS__)
+#define kdebug(FMT, ...) printk(KERN_DEBUG "MISALIGN: "FMT"\n", ##__VA_ARGS__)
#else
#define kdebug(FMT, ...) do {} while (0)
#endif
-static int misalignment_addr(unsigned long *registers, unsigned params,
- unsigned opcode, unsigned disp,
- void **_address, unsigned long **_postinc);
+static int misalignment_addr(unsigned long *registers, unsigned long sp,
+ unsigned params, unsigned opcode,
+ unsigned long disp,
+ void **_address, unsigned long **_postinc,
+ unsigned long *_inc);
static int misalignment_reg(unsigned long *registers, unsigned params,
- unsigned opcode, unsigned disp,
+ unsigned opcode, unsigned long disp,
unsigned long **_register);
-static inline unsigned int_log2(unsigned x)
-{
- unsigned y;
- asm("bsch %1,%0" : "=r"(y) : "r"(x), "0"(0));
- return y;
-}
-#define log2(x) int_log2(x)
+static void misalignment_MOV_Lcc(struct pt_regs *regs, uint32_t opcode);
static const unsigned Dreg_index[] = {
REG_D0 >> 2, REG_D1 >> 2, REG_D2 >> 2, REG_D3 >> 2
FMT_D7,
FMT_D8,
FMT_D9,
+ FMT_D10,
};
-struct {
+static const struct {
u_int8_t opsz, dispsz;
} format_tbl[16] = {
[FMT_S0] = { 8, 0 },
[FMT_D7] = { 24, 8 },
[FMT_D8] = { 24, 24 },
[FMT_D9] = { 24, 32 },
+ [FMT_D10] = { 32, 0 },
};
enum value_id {
SD24, /* 24-bit signed displacement */
SIMM4_2, /* 4-bit signed displacement in opcode bits 4-7 */
SIMM8, /* 8-bit signed immediate */
+ IMM8, /* 8-bit unsigned immediate */
+ IMM16, /* 16-bit unsigned immediate */
IMM24, /* 24-bit unsigned immediate */
IMM32, /* 32-bit unsigned immediate */
- IMM32_HIGH8, /* 32-bit unsigned immediate, high 8-bits in opcode */
+ IMM32_HIGH8, /* 32-bit unsigned immediate, LSB in opcode */
+
+ IMM32_MEM, /* 32-bit unsigned displacement */
+ IMM32_HIGH8_MEM, /* 32-bit unsigned displacement, LSB in opcode */
DN0 = DM0,
DN1 = DM1,
};
struct mn10300_opcode {
- const char *name;
+ const char name[8];
u_int32_t opcode;
u_int32_t opmask;
unsigned exclusion;
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
static const struct mn10300_opcode mn10300_opcodes[] = {
+{ "mov", 0x4200, 0xf300, 0, FMT_S1, 0, {DM1, MEM2(IMM8, SP)}},
+{ "mov", 0x4300, 0xf300, 0, FMT_S1, 0, {AM1, MEM2(IMM8, SP)}},
+{ "mov", 0x5800, 0xfc00, 0, FMT_S1, 0, {MEM2(IMM8, SP), DN0}},
+{ "mov", 0x5c00, 0xfc00, 0, FMT_S1, 0, {MEM2(IMM8, SP), AN0}},
{ "mov", 0x60, 0xf0, 0, FMT_S0, 0, {DM1, MEM(AN0)}},
{ "mov", 0x70, 0xf0, 0, FMT_S0, 0, {MEM(AM0), DN1}},
{ "mov", 0xf000, 0xfff0, 0, FMT_D0, 0, {MEM(AM0), AN1}},
{ "mov", 0xf81000, 0xfff000, 0, FMT_D1, 0, {DM1, MEM2(SD8, AN0)}},
{ "mov", 0xf82000, 0xfff000, 0, FMT_D1, 0, {MEM2(SD8,AM0), AN1}},
{ "mov", 0xf83000, 0xfff000, 0, FMT_D1, 0, {AM1, MEM2(SD8, AN0)}},
-{ "mov", 0xf8f000, 0xfffc00, 0, FMT_D1, AM33, {MEM2(SD8, AM0), SP}},
-{ "mov", 0xf8f400, 0xfffc00, 0, FMT_D1, AM33, {SP, MEM2(SD8, AN0)}},
{ "mov", 0xf90a00, 0xffff00, 0, FMT_D6, AM33, {MEM(RM0), RN2}},
{ "mov", 0xf91a00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEM(RN0)}},
{ "mov", 0xf96a00, 0xffff00, 0x12, FMT_D6, AM33, {MEMINC(RM0), RN2}},
{ "mov", 0xfa100000, 0xfff00000, 0, FMT_D2, 0, {DM1, MEM2(SD16, AN0)}},
{ "mov", 0xfa200000, 0xfff00000, 0, FMT_D2, 0, {MEM2(SD16, AM0), AN1}},
{ "mov", 0xfa300000, 0xfff00000, 0, FMT_D2, 0, {AM1, MEM2(SD16, AN0)}},
+{ "mov", 0xfa900000, 0xfff30000, 0, FMT_D2, 0, {AM1, MEM2(IMM16, SP)}},
+{ "mov", 0xfa910000, 0xfff30000, 0, FMT_D2, 0, {DM1, MEM2(IMM16, SP)}},
+{ "mov", 0xfab00000, 0xfffc0000, 0, FMT_D2, 0, {MEM2(IMM16, SP), AN0}},
+{ "mov", 0xfab40000, 0xfffc0000, 0, FMT_D2, 0, {MEM2(IMM16, SP), DN0}},
{ "mov", 0xfb0a0000, 0xffff0000, 0, FMT_D7, AM33, {MEM2(SD8, RM0), RN2}},
{ "mov", 0xfb1a0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEM2(SD8, RN0)}},
{ "mov", 0xfb6a0000, 0xffff0000, 0x22, FMT_D7, AM33, {MEMINC2 (RM0, SIMM8), RN2}},
{ "mov", 0xfb7a0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEMINC2 (RN0, SIMM8)}},
+{ "mov", 0xfb8a0000, 0xffff0f00, 0, FMT_D7, AM33, {MEM2(IMM8, SP), RN2}},
{ "mov", 0xfb8e0000, 0xffff000f, 0, FMT_D7, AM33, {MEM2(RI, RM0), RD2}},
+{ "mov", 0xfb9a0000, 0xffff0f00, 0, FMT_D7, AM33, {RM2, MEM2(IMM8, SP)}},
{ "mov", 0xfb9e0000, 0xffff000f, 0, FMT_D7, AM33, {RD2, MEM2(RI, RN0)}},
{ "mov", 0xfc000000, 0xfff00000, 0, FMT_D4, 0, {MEM2(IMM32,AM0), DN1}},
{ "mov", 0xfc100000, 0xfff00000, 0, FMT_D4, 0, {DM1, MEM2(IMM32,AN0)}},
{ "mov", 0xfc200000, 0xfff00000, 0, FMT_D4, 0, {MEM2(IMM32,AM0), AN1}},
{ "mov", 0xfc300000, 0xfff00000, 0, FMT_D4, 0, {AM1, MEM2(IMM32,AN0)}},
+{ "mov", 0xfc800000, 0xfff30000, 0, FMT_D4, 0, {AM1, MEM(IMM32_MEM)}},
+{ "mov", 0xfc810000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM(IMM32_MEM)}},
+{ "mov", 0xfc900000, 0xfff30000, 0, FMT_D4, 0, {AM1, MEM2(IMM32, SP)}},
+{ "mov", 0xfc910000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM2(IMM32, SP)}},
+{ "mov", 0xfca00000, 0xfffc0000, 0, FMT_D4, 0, {MEM(IMM32_MEM), AN0}},
+{ "mov", 0xfca40000, 0xfffc0000, 0, FMT_D4, 0, {MEM(IMM32_MEM), DN0}},
+{ "mov", 0xfcb00000, 0xfffc0000, 0, FMT_D4, 0, {MEM2(IMM32, SP), AN0}},
+{ "mov", 0xfcb40000, 0xfffc0000, 0, FMT_D4, 0, {MEM2(IMM32, SP), DN0}},
{ "mov", 0xfd0a0000, 0xffff0000, 0, FMT_D8, AM33, {MEM2(SD24, RM0), RN2}},
{ "mov", 0xfd1a0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEM2(SD24, RN0)}},
{ "mov", 0xfd6a0000, 0xffff0000, 0x22, FMT_D8, AM33, {MEMINC2 (RM0, IMM24), RN2}},
{ "mov", 0xfd7a0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEMINC2 (RN0, IMM24)}},
+{ "mov", 0xfd8a0000, 0xffff0f00, 0, FMT_D8, AM33, {MEM2(IMM24, SP), RN2}},
+{ "mov", 0xfd9a0000, 0xffff0f00, 0, FMT_D8, AM33, {RM2, MEM2(IMM24, SP)}},
{ "mov", 0xfe0a0000, 0xffff0000, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8,RM0), RN2}},
+{ "mov", 0xfe0a0000, 0xffff0000, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8,RM0), RN2}},
+{ "mov", 0xfe0e0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM(IMM32_HIGH8_MEM), RN2}},
+{ "mov", 0xfe1a0000, 0xffff0000, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, RN0)}},
{ "mov", 0xfe1a0000, 0xffff0000, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, RN0)}},
+{ "mov", 0xfe1e0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM(IMM32_HIGH8_MEM)}},
{ "mov", 0xfe6a0000, 0xffff0000, 0x22, FMT_D9, AM33, {MEMINC2 (RM0, IMM32_HIGH8), RN2}},
{ "mov", 0xfe7a0000, 0xffff0000, 0, FMT_D9, AM33, {RN2, MEMINC2 (RM0, IMM32_HIGH8)}},
+{ "mov", 0xfe8a0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8, SP), RN2}},
+{ "mov", 0xfe9a0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, SP)}},
{ "movhu", 0xf060, 0xfff0, 0, FMT_D0, 0, {MEM(AM0), DN1}},
{ "movhu", 0xf070, 0xfff0, 0, FMT_D0, 0, {DM1, MEM(AN0)}},
{ "movhu", 0xf4c0, 0xffc0, 0, FMT_D0, 0, {DM2, MEM2(DI, AN0)}},
{ "movhu", 0xf86000, 0xfff000, 0, FMT_D1, 0, {MEM2(SD8, AM0), DN1}},
{ "movhu", 0xf87000, 0xfff000, 0, FMT_D1, 0, {DM1, MEM2(SD8, AN0)}},
+{ "movhu", 0xf89300, 0xfff300, 0, FMT_D1, 0, {DM1, MEM2(IMM8, SP)}},
+{ "movhu", 0xf8bc00, 0xfffc00, 0, FMT_D1, 0, {MEM2(IMM8, SP), DN0}},
{ "movhu", 0xf94a00, 0xffff00, 0, FMT_D6, AM33, {MEM(RM0), RN2}},
{ "movhu", 0xf95a00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEM(RN0)}},
{ "movhu", 0xf9ea00, 0xffff00, 0x12, FMT_D6, AM33, {MEMINC(RM0), RN2}},
{ "movhu", 0xf9fa00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEMINC(RN0)}},
{ "movhu", 0xfa600000, 0xfff00000, 0, FMT_D2, 0, {MEM2(SD16, AM0), DN1}},
{ "movhu", 0xfa700000, 0xfff00000, 0, FMT_D2, 0, {DM1, MEM2(SD16, AN0)}},
+{ "movhu", 0xfa930000, 0xfff30000, 0, FMT_D2, 0, {DM1, MEM2(IMM16, SP)}},
+{ "movhu", 0xfabc0000, 0xfffc0000, 0, FMT_D2, 0, {MEM2(IMM16, SP), DN0}},
{ "movhu", 0xfb4a0000, 0xffff0000, 0, FMT_D7, AM33, {MEM2(SD8, RM0), RN2}},
{ "movhu", 0xfb5a0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEM2(SD8, RN0)}},
+{ "movhu", 0xfbca0000, 0xffff0f00, 0, FMT_D7, AM33, {MEM2(IMM8, SP), RN2}},
{ "movhu", 0xfbce0000, 0xffff000f, 0, FMT_D7, AM33, {MEM2(RI, RM0), RD2}},
+{ "movhu", 0xfbda0000, 0xffff0f00, 0, FMT_D7, AM33, {RM2, MEM2(IMM8, SP)}},
{ "movhu", 0xfbde0000, 0xffff000f, 0, FMT_D7, AM33, {RD2, MEM2(RI, RN0)}},
{ "movhu", 0xfbea0000, 0xffff0000, 0x22, FMT_D7, AM33, {MEMINC2 (RM0, SIMM8), RN2}},
{ "movhu", 0xfbfa0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEMINC2 (RN0, SIMM8)}},
{ "movhu", 0xfc600000, 0xfff00000, 0, FMT_D4, 0, {MEM2(IMM32,AM0), DN1}},
{ "movhu", 0xfc700000, 0xfff00000, 0, FMT_D4, 0, {DM1, MEM2(IMM32,AN0)}},
+{ "movhu", 0xfc830000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM(IMM32_MEM)}},
+{ "movhu", 0xfc930000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM2(IMM32, SP)}},
+{ "movhu", 0xfcac0000, 0xfffc0000, 0, FMT_D4, 0, {MEM(IMM32_MEM), DN0}},
+{ "movhu", 0xfcbc0000, 0xfffc0000, 0, FMT_D4, 0, {MEM2(IMM32, SP), DN0}},
{ "movhu", 0xfd4a0000, 0xffff0000, 0, FMT_D8, AM33, {MEM2(SD24, RM0), RN2}},
{ "movhu", 0xfd5a0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEM2(SD24, RN0)}},
+{ "movhu", 0xfdca0000, 0xffff0f00, 0, FMT_D8, AM33, {MEM2(IMM24, SP), RN2}},
+{ "movhu", 0xfdda0000, 0xffff0f00, 0, FMT_D8, AM33, {RM2, MEM2(IMM24, SP)}},
{ "movhu", 0xfdea0000, 0xffff0000, 0x22, FMT_D8, AM33, {MEMINC2 (RM0, IMM24), RN2}},
{ "movhu", 0xfdfa0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEMINC2 (RN0, IMM24)}},
{ "movhu", 0xfe4a0000, 0xffff0000, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8,RM0), RN2}},
+{ "movhu", 0xfe4e0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM(IMM32_HIGH8_MEM), RN2}},
{ "movhu", 0xfe5a0000, 0xffff0000, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, RN0)}},
+{ "movhu", 0xfe5e0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM(IMM32_HIGH8_MEM)}},
+{ "movhu", 0xfeca0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8, SP), RN2}},
+{ "movhu", 0xfeda0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, SP)}},
{ "movhu", 0xfeea0000, 0xffff0000, 0x22, FMT_D9, AM33, {MEMINC2 (RM0, IMM32_HIGH8), RN2}},
{ "movhu", 0xfefa0000, 0xffff0000, 0, FMT_D9, AM33, {RN2, MEMINC2 (RM0, IMM32_HIGH8)}},
-{ 0, 0, 0, 0, 0, 0, {0}},
+
+{ "mov_llt", 0xf7e00000, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lgt", 0xf7e00001, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lge", 0xf7e00002, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lle", 0xf7e00003, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lcs", 0xf7e00004, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lhi", 0xf7e00005, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lcc", 0xf7e00006, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lls", 0xf7e00007, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_leq", 0xf7e00008, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lne", 0xf7e00009, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lra", 0xf7e0000a, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
+
+{ "", 0, 0, 0, 0, 0, {0}},
};
/*
const struct exception_table_entry *fixup;
const struct mn10300_opcode *pop;
unsigned long *registers = (unsigned long *) regs;
- unsigned long data, *store, *postinc;
+ unsigned long data, *store, *postinc, disp, inc, sp;
mm_segment_t seg;
siginfo_t info;
- uint32_t opcode, disp, noc, xo, xm;
- uint8_t *pc, byte;
+ uint32_t opcode, noc, xo, xm;
+ uint8_t *pc, byte, datasz;
void *address;
- unsigned tmp, npop;
+ unsigned tmp, npop, dispsz, loop;
+
+ /* we don't fix up userspace misalignment faults */
+ if (user_mode(regs))
+ goto bus_error;
- kdebug("MISALIGN at %lx\n", regs->pc);
+ sp = (unsigned long) regs + sizeof(*regs);
- if (in_interrupt())
- die("Misalignment trap in interrupt context", regs, code);
+ kdebug("==>misalignment({pc=%lx,sp=%lx})", regs->pc, sp);
if (regs->epsw & EPSW_IE)
asm volatile("or %0,epsw" : : "i"(EPSW_IE));
opcode = byte;
noc = 8;
- for (pop = mn10300_opcodes; pop->name; pop++) {
- npop = log2(pop->opcode | pop->opmask);
+ for (pop = mn10300_opcodes; pop->name[0]; pop++) {
+ npop = ilog2(pop->opcode | pop->opmask);
if (npop <= 0 || npop > 31)
continue;
npop = (npop + 8) & ~7;
}
/* didn't manage to find a fixup */
- if (!user_mode(regs))
- printk(KERN_CRIT "MISALIGN: %lx: unsupported instruction %x\n",
- regs->pc, opcode);
+ printk(KERN_CRIT "MISALIGN: %lx: unsupported instruction %x\n",
+ regs->pc, opcode);
failed:
set_fs(seg);
if (die_if_no_fixup("misalignment error", regs, code))
return;
+bus_error:
info.si_signo = SIGBUS;
info.si_errno = 0;
info.si_code = BUS_ADRALN;
/* error reading opcodes */
fetch_error:
- if (!user_mode(regs))
- printk(KERN_CRIT
- "MISALIGN: %p: fault whilst reading instruction data\n",
- pc);
+ printk(KERN_CRIT
+ "MISALIGN: %p: fault whilst reading instruction data\n",
+ pc);
goto failed;
bad_addr_mode:
- if (!user_mode(regs))
- printk(KERN_CRIT
- "MISALIGN: %lx: unsupported addressing mode %x\n",
- regs->pc, opcode);
+ printk(KERN_CRIT
+ "MISALIGN: %lx: unsupported addressing mode %x\n",
+ regs->pc, opcode);
goto failed;
bad_reg_mode:
- if (!user_mode(regs))
- printk(KERN_CRIT
- "MISALIGN: %lx: unsupported register mode %x\n",
- regs->pc, opcode);
+ printk(KERN_CRIT
+ "MISALIGN: %lx: unsupported register mode %x\n",
+ regs->pc, opcode);
goto failed;
unsupported_instruction:
- if (!user_mode(regs))
- printk(KERN_CRIT
- "MISALIGN: %lx: unsupported instruction %x (%s)\n",
- regs->pc, opcode, pop->name);
+ printk(KERN_CRIT
+ "MISALIGN: %lx: unsupported instruction %x (%s)\n",
+ regs->pc, opcode, pop->name);
goto failed;
transfer_failed:
/* we matched the opcode */
found_opcode:
- kdebug("MISALIGN: %lx: %x==%x { %x, %x }\n",
+ kdebug("%lx: %x==%x { %x, %x }",
regs->pc, opcode, pop->opcode, pop->params[0], pop->params[1]);
tmp = format_tbl[pop->format].opsz;
/* grab the extra displacement (note it's LSB first) */
disp = 0;
- tmp = format_tbl[pop->format].dispsz >> 3;
- while (tmp > 0) {
- tmp--;
- disp <<= 8;
-
+ dispsz = format_tbl[pop->format].dispsz;
+ for (loop = 0; loop < dispsz; loop += 8) {
pc++;
if (__get_user(byte, pc) != 0)
goto fetch_error;
- disp |= byte;
+ disp |= byte << loop;
+ kdebug("{%p} disp[%02x]=%02x", pc, loop, byte);
}
+ kdebug("disp=%lx", disp);
+
set_fs(KERNEL_XDS);
- if (fixup || regs->epsw & EPSW_nSL)
+ if (fixup)
set_fs(seg);
tmp = (pop->params[0] ^ pop->params[1]) & 0x80000000;
if (!tmp) {
- if (!user_mode(regs))
- printk(KERN_CRIT
- "MISALIGN: %lx:"
- " insn not move to/from memory %x\n",
- regs->pc, opcode);
+ printk(KERN_CRIT
+ "MISALIGN: %lx: insn not move to/from memory %x\n",
+ regs->pc, opcode);
goto failed;
}
+ /* determine the data transfer size of the move */
+ if (pop->name[3] == 0 || /* "mov" */
+ pop->name[4] == 'l') /* mov_lcc */
+ inc = datasz = 4;
+ else if (pop->name[3] == 'h') /* movhu */
+ inc = datasz = 2;
+ else
+ goto unsupported_instruction;
+
if
projects / linux-2.6.git / commitdiff