forked from Minki/linux
Merge branch 'for-2.6.37' into for-2.6.38
This commit is contained in:
Mark Brown
commit
6e1bd1ab1d
8
CREDITS
8
CREDITS
@ -3554,12 +3554,12 @@ E: cvance@nai.com
|
||||
D: portions of the Linux Security Module (LSM) framework and security modules
|
||||
|
||||
N: Petr Vandrovec
|
||||
E: vandrove@vc.cvut.cz
|
||||
E: petr@vandrovec.name
|
||||
D: Small contributions to ncpfs
|
||||
D: Matrox framebuffer driver
|
||||
S: Chudenicka 8
|
||||
S: 10200 Prague 10, Hostivar
|
||||
S: Czech Republic
|
||||
S: 21513 Conradia Ct
|
||||
S: Cupertino, CA 95014
|
||||
S: USA
|
||||
|
||||
N: Thibaut Varene
|
||||
E: T-Bone@parisc-linux.org
|
||||
|
||||
@ -46,7 +46,6 @@
|
||||
|
||||
<sect1><title>Atomic and pointer manipulation</title>
|
||||
!Iarch/x86/include/asm/atomic.h
|
||||
!Iarch/x86/include/asm/unaligned.h
|
||||
</sect1>
|
||||
|
||||
<sect1><title>Delaying, scheduling, and timer routines</title>
|
||||
|
||||
@ -57,7 +57,6 @@
|
||||
</para>
|
||||
|
||||
<sect1><title>String Conversions</title>
|
||||
!Ilib/vsprintf.c
|
||||
!Elib/vsprintf.c
|
||||
</sect1>
|
||||
<sect1><title>String Manipulation</title>
|
||||
|
||||
@ -1922,9 +1922,12 @@ machines due to caching.
|
||||
<function>mutex_lock()</function>
|
||||
</para>
|
||||
<para>
|
||||
There is a <function>mutex_trylock()</function> which can be
|
||||
used inside interrupt context, as it will not sleep.
|
||||
There is a <function>mutex_trylock()</function> which does not
|
||||
sleep. Still, it must not be used inside interrupt context since
|
||||
its implementation is not safe for that.
|
||||
<function>mutex_unlock()</function> will also never sleep.
|
||||
It cannot be used in interrupt context either since a mutex
|
||||
must be released by the same task that acquired it.
|
||||
</para>
|
||||
</listitem>
|
||||
</itemizedlist>
|
||||
@ -1958,6 +1961,12 @@ machines due to caching.
|
||||
</sect1>
|
||||
</chapter>
|
||||
|
||||
<chapter id="apiref">
|
||||
<title>Mutex API reference</title>
|
||||
!Iinclude/linux/mutex.h
|
||||
!Ekernel/mutex.c
|
||||
</chapter>
|
||||
|
||||
<chapter id="references">
|
||||
<title>Further reading</title>
|
||||
|
||||
|
||||
@ -104,4 +104,9 @@
|
||||
<title>Block IO</title>
|
||||
!Iinclude/trace/events/block.h
|
||||
</chapter>
|
||||
|
||||
<chapter id="workqueue">
|
||||
<title>Workqueue</title>
|
||||
!Iinclude/trace/events/workqueue.h
|
||||
</chapter>
|
||||
</book>
|
||||
|
||||
45
Documentation/block/cfq-iosched.txt
Normal file
45
Documentation/block/cfq-iosched.txt
Normal file
@ -0,0 +1,45 @@
|
||||
CFQ ioscheduler tunables
|
||||
========================
|
||||
|
||||
slice_idle
|
||||
----------
|
||||
This specifies how long CFQ should idle for next request on certain cfq queues
|
||||
(for sequential workloads) and service trees (for random workloads) before
|
||||
queue is expired and CFQ selects next queue to dispatch from.
|
||||
|
||||
By default slice_idle is a non-zero value. That means by default we idle on
|
||||
queues/service trees. This can be very helpful on highly seeky media like
|
||||
single spindle SATA/SAS disks where we can cut down on overall number of
|
||||
seeks and see improved throughput.
|
||||
|
||||
Setting slice_idle to 0 will remove all the idling on queues/service tree
|
||||
level and one should see an overall improved throughput on faster storage
|
||||
devices like multiple SATA/SAS disks in hardware RAID configuration. The down
|
||||
side is that isolation provided from WRITES also goes down and notion of
|
||||
IO priority becomes weaker.
|
||||
|
||||
So depending on storage and workload, it might be useful to set slice_idle=0.
|
||||
In general I think for SATA/SAS disks and software RAID of SATA/SAS disks
|
||||
keeping slice_idle enabled should be useful. For any configurations where
|
||||
there are multiple spindles behind single LUN (Host based hardware RAID
|
||||
controller or for storage arrays), setting slice_idle=0 might end up in better
|
||||
throughput and acceptable latencies.
|
||||
|
||||
CFQ IOPS Mode for group scheduling
|
||||
===================================
|
||||
Basic CFQ design is to provide priority based time slices. Higher priority
|
||||
process gets bigger time slice and lower priority process gets smaller time
|
||||
slice. Measuring time becomes harder if storage is fast and supports NCQ and
|
||||
it would be better to dispatch multiple requests from multiple cfq queues in
|
||||
request queue at a time. In such scenario, it is not possible to measure time
|
||||
consumed by single queue accurately.
|
||||
|
||||
What is possible though is to measure number of requests dispatched from a
|
||||
single queue and also allow dispatch from multiple cfq queue at the same time.
|
||||
This effectively becomes the fairness in terms of IOPS (IO operations per
|
||||
second).
|
||||
|
||||
If one sets slice_idle=0 and if storage supports NCQ, CFQ internally switches
|
||||
to IOPS mode and starts providing fairness in terms of number of requests
|
||||
dispatched. Note that this mode switching takes effect only for group
|
||||
scheduling. For non-cgroup users nothing should change.
|
||||
@ -217,6 +217,7 @@ Details of cgroup files
|
||||
CFQ sysfs tunable
|
||||
=================
|
||||
/sys/block/<disk>/queue/iosched/group_isolation
|
||||
-----------------------------------------------
|
||||
|
||||
If group_isolation=1, it provides stronger isolation between groups at the
|
||||
expense of throughput. By default group_isolation is 0. In general that
|
||||
@ -243,6 +244,33 @@ By default one should run with group_isolation=0. If that is not sufficient
|
||||
and one wants stronger isolation between groups, then set group_isolation=1
|
||||
but this will come at cost of reduced throughput.
|
||||
|
||||
/sys/block/<disk>/queue/iosched/slice_idle
|
||||
------------------------------------------
|
||||
On a faster hardware CFQ can be slow, especially with sequential workload.
|
||||
This happens because CFQ idles on a single queue and single queue might not
|
||||
drive deeper request queue depths to keep the storage busy. In such scenarios
|
||||
one can try setting slice_idle=0 and that would switch CFQ to IOPS
|
||||
(IO operations per second) mode on NCQ supporting hardware.
|
||||
|
||||
That means CFQ will not idle between cfq queues of a cfq group and hence be
|
||||
able to driver higher queue depth and achieve better throughput. That also
|
||||
means that cfq provides fairness among groups in terms of IOPS and not in
|
||||
terms of disk time.
|
||||
|
||||
/sys/block/<disk>/queue/iosched/group_idle
|
||||
------------------------------------------
|
||||
If one disables idling on individual cfq queues and cfq service trees by
|
||||
setting slice_idle=0, group_idle kicks in. That means CFQ will still idle
|
||||
on the group in an attempt to provide fairness among groups.
|
||||
|
||||
By default group_idle is same as slice_idle and does not do anything if
|
||||
slice_idle is enabled.
|
||||
|
||||
One can experience an overall throughput drop if you have created multiple
|
||||
groups and put applications in that group which are not driving enough
|
||||
IO to keep disk busy. In that case set group_idle=0, and CFQ will not idle
|
||||
on individual groups and throughput should improve.
|
||||
|
||||
What works
|
||||
==========
|
||||
- Currently only sync IO queues are support. All the buffered writes are
|
||||
|
||||
@ -109,17 +109,19 @@ use numbers 2000-2063 to identify GPIOs in a bank of I2C GPIO expanders.
|
||||
|
||||
If you want to initialize a structure with an invalid GPIO number, use
|
||||
some negative number (perhaps "-EINVAL"); that will never be valid. To
|
||||
test if a number could reference a GPIO, you may use this predicate:
|
||||
test if such number from such a structure could reference a GPIO, you
|
||||
may use this predicate:
|
||||
|
||||
int gpio_is_valid(int number);
|
||||
|
||||
A number that's not valid will be rejected by calls which may request
|
||||
or free GPIOs (see below). Other numbers may also be rejected; for
|
||||
example, a number might be valid but unused on a given board.
|
||||
|
||||
Whether a platform supports multiple GPIO controllers is currently a
|
||||
platform-specific implementation issue.
|
||||
example, a number might be valid but temporarily unused on a given board.
|
||||
|
||||
Whether a platform supports multiple GPIO controllers is a platform-specific
|
||||
implementation issue, as are whether that support can leave "holes" in the space
|
||||
of GPIO numbers, and whether new controllers can be added at runtime. Such issues
|
||||
can affect things including whether adjacent GPIO numbers are both valid.
|
||||
|
||||
Using GPIOs
|
||||
-----------
|
||||
@ -480,12 +482,16 @@ To support this framework, a platform's Kconfig will "select" either
|
||||
ARCH_REQUIRE_GPIOLIB or ARCH_WANT_OPTIONAL_GPIOLIB
|
||||
and arrange that its <asm/gpio.h> includes <asm-generic/gpio.h> and defines
|
||||
three functions: gpio_get_value(), gpio_set_value(), and gpio_cansleep().
|
||||
They may also want to provide a custom value for ARCH_NR_GPIOS.
|
||||
|
||||
ARCH_REQUIRE_GPIOLIB means that the gpio-lib code will always get compiled
|
||||
It may also provide a custom value for ARCH_NR_GPIOS, so that it better
|
||||
reflects the number of GPIOs in actual use on that platform, without
|
||||
wasting static table space. (It should count both built-in/SoC GPIOs and
|
||||
also ones on GPIO expanders.
|
||||
|
||||
ARCH_REQUIRE_GPIOLIB means that the gpiolib code will always get compiled
|
||||
into the kernel on that architecture.
|
||||
|
||||
ARCH_WANT_OPTIONAL_GPIOLIB means the gpio-lib code defaults to off and the user
|
||||
ARCH_WANT_OPTIONAL_GPIOLIB means the gpiolib code defaults to off and the user
|
||||
can enable it and build it into the kernel optionally.
|
||||
|
||||
If neither of these options are selected, the platform does not support
|
||||
|
||||
@ -2,10 +2,6 @@ Kernel driver f71882fg
|
||||
======================
|
||||
|
||||
Supported chips:
|
||||
* Fintek F71808E
|
||||
Prefix: 'f71808fg'
|
||||
Addresses scanned: none, address read from Super I/O config space
|
||||
Datasheet: Not public
|
||||
* Fintek F71858FG
|
||||
Prefix: 'f71858fg'
|
||||
Addresses scanned: none, address read from Super I/O config space
|
||||
|
||||
@ -91,12 +91,11 @@ name The chip name.
|
||||
I2C devices get this attribute created automatically.
|
||||
RO
|
||||
|
||||
update_rate The rate at which the chip will update readings.
|
||||
update_interval The interval at which the chip will update readings.
|
||||
Unit: millisecond
|
||||
RW
|
||||
Some devices have a variable update rate. This attribute
|
||||
can be used to change the update rate to the desired
|
||||
frequency.
|
||||
Some devices have a variable update rate or interval.
|
||||
This attribute can be used to change it to the desired value.
|
||||
|
||||
|
||||
************
|
||||
|
||||
@ -345,5 +345,10 @@ documentation, in <filename>, for the functions listed.
|
||||
section titled <section title> from <filename>.
|
||||
Spaces are allowed in <section title>; do not quote the <section title>.
|
||||
|
||||
!C<filename> is replaced by nothing, but makes the tools check that
|
||||
all DOC: sections and documented functions, symbols, etc. are used.
|
||||
This makes sense to use when you use !F/!P only and want to verify
|
||||
that all documentation is included.
|
||||
|
||||
Tim.
|
||||
*/ <twaugh@redhat.com>
|
||||
|
||||
@ -1974,15 +1974,18 @@ and is between 256 and 4096 characters. It is defined in the file
|
||||
force Enable ASPM even on devices that claim not to support it.
|
||||
WARNING: Forcing ASPM on may cause system lockups.
|
||||
|
||||
pcie_ports= [PCIE] PCIe ports handling:
|
||||
auto Ask the BIOS whether or not to use native PCIe services
|
||||
associated with PCIe ports (PME, hot-plug, AER). Use
|
||||
them only if that is allowed by the BIOS.
|
||||
native Use native PCIe services associated with PCIe ports
|
||||
unconditionally.
|
||||
compat Treat PCIe ports as PCI-to-PCI bridges, disable the PCIe
|
||||
ports driver.
|
||||
|
||||
pcie_pme= [PCIE,PM] Native PCIe PME signaling options:
|
||||
Format: {auto|force}[,nomsi]
|
||||
auto Use native PCIe PME signaling if the BIOS allows the
|
||||
kernel to control PCIe config registers of root ports.
|
||||
force Use native PCIe PME signaling even if the BIOS refuses
|
||||
to allow the kernel to control the relevant PCIe config
|
||||
registers.
|
||||
nomsi Do not use MSI for native PCIe PME signaling (this makes
|
||||
all PCIe root ports use INTx for everything).
|
||||
all PCIe root ports use INTx for all services).
|
||||
|
||||
pcmv= [HW,PCMCIA] BadgePAD 4
|
||||
|
||||
@ -2629,8 +2632,10 @@ and is between 256 and 4096 characters. It is defined in the file
|
||||
aux-ide-disks -- unplug non-primary-master IDE devices
|
||||
nics -- unplug network devices
|
||||
all -- unplug all emulated devices (NICs and IDE disks)
|
||||
ignore -- continue loading the Xen platform PCI driver even
|
||||
if the version check failed
|
||||
unnecessary -- unplugging emulated devices is
|
||||
unnecessary even if the host did not respond to
|
||||
the unplug protocol
|
||||
never -- do not unplug even if version check succeeds
|
||||
|
||||
xirc2ps_cs= [NET,PCMCIA]
|
||||
Format:
|
||||
|
||||
@ -1024,6 +1024,10 @@ ThinkPad-specific interface. The driver will disable its native
|
||||
backlight brightness control interface if it detects that the standard
|
||||
ACPI interface is available in the ThinkPad.
|
||||
|
||||
If you want to use the thinkpad-acpi backlight brightness control
|
||||
instead of the generic ACPI video backlight brightness control for some
|
||||
reason, you should use the acpi_backlight=vendor kernel parameter.
|
||||
|
||||
The brightness_enable module parameter can be used to control whether
|
||||
the LCD brightness control feature will be enabled when available.
|
||||
brightness_enable=0 forces it to be disabled. brightness_enable=1
|
||||
|
||||
@ -1,5 +1,6 @@
|
||||
# This creates the demonstration utility "lguest" which runs a Linux guest.
|
||||
CFLAGS:=-m32 -Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include -I../../arch/x86/include -U_FORTIFY_SOURCE
|
||||
# Missing headers? Add "-I../../include -I../../arch/x86/include"
|
||||
CFLAGS:=-m32 -Wall -Wmissing-declarations -Wmissing-prototypes -O3 -U_FORTIFY_SOURCE
|
||||
|
||||
all: lguest
|
||||
|
||||
|
||||
@ -39,14 +39,14 @@
|
||||
#include <limits.h>
|
||||
#include <stddef.h>
|
||||
#include <signal.h>
|
||||
#include "linux/lguest_launcher.h"
|
||||
#include "linux/virtio_config.h"
|
||||
#include "linux/virtio_net.h"
|
||||
#include "linux/virtio_blk.h"
|
||||
#include "linux/virtio_console.h"
|
||||
#include "linux/virtio_rng.h"
|
||||
#include "linux/virtio_ring.h"
|
||||
#include "asm/bootparam.h"
|
||||
#include <linux/virtio_config.h>
|
||||
#include <linux/virtio_net.h>
|
||||
#include <linux/virtio_blk.h>
|
||||
#include <linux/virtio_console.h>
|
||||
#include <linux/virtio_rng.h>
|
||||
#include <linux/virtio_ring.h>
|
||||
#include <asm/bootparam.h>
|
||||
#include "../../include/linux/lguest_launcher.h"
|
||||
/*L:110
|
||||
* We can ignore the 42 include files we need for this program, but I do want
|
||||
* to draw attention to the use of kernel-style types.
|
||||
@ -1447,14 +1447,15 @@ static void add_to_bridge(int fd, const char *if_name, const char *br_name)
|
||||
static void configure_device(int fd, const char *tapif, u32 ipaddr)
|
||||
{
|
||||
struct ifreq ifr;
|
||||
struct sockaddr_in *sin = (struct sockaddr_in *)&ifr.ifr_addr;
|
||||
struct sockaddr_in sin;
|
||||
|
||||
memset(&ifr, 0, sizeof(ifr));
|
||||
strcpy(ifr.ifr_name, tapif);
|
||||
|
||||
/* Don't read these incantations. Just cut & paste them like I did! */
|
||||
sin->sin_family = AF_INET;
|
||||
sin->sin_addr.s_addr = htonl(ipaddr);
|
||||
sin.sin_family = AF_INET;
|
||||
sin.sin_addr.s_addr = htonl(ipaddr);
|
||||
memcpy(&ifr.ifr_addr, &sin, sizeof(sin));
|
||||
if (ioctl(fd, SIOCSIFADDR, &ifr) != 0)
|
||||
err(1, "Setting %s interface address", tapif);
|
||||
ifr.ifr_flags = IFF_UP;
|
||||
|
||||
@ -9,7 +9,7 @@ firstly, there's nothing wrong with semaphores. But if the simpler
|
||||
mutex semantics are sufficient for your code, then there are a couple
|
||||
of advantages of mutexes:
|
||||
|
||||
- 'struct mutex' is smaller on most architectures: .e.g on x86,
|
||||
- 'struct mutex' is smaller on most architectures: E.g. on x86,
|
||||
'struct semaphore' is 20 bytes, 'struct mutex' is 16 bytes.
|
||||
A smaller structure size means less RAM footprint, and better
|
||||
CPU-cache utilization.
|
||||
@ -136,3 +136,4 @@ the APIs of 'struct mutex' have been streamlined:
|
||||
void mutex_lock_nested(struct mutex *lock, unsigned int subclass);
|
||||
int mutex_lock_interruptible_nested(struct mutex *lock,
|
||||
unsigned int subclass);
|
||||
int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock);
|
||||
|
||||
@ -1,82 +1,35 @@
|
||||
Linux* Base Driver for the Intel(R) PRO/1000 Family of Adapters
|
||||
===============================================================
|
||||
|
||||
September 26, 2006
|
||||
|
||||
Intel Gigabit Linux driver.
|
||||
Copyright(c) 1999 - 2010 Intel Corporation.
|
||||
|
||||
Contents
|
||||
========
|
||||
|
||||
- In This Release
|
||||
- Identifying Your Adapter
|
||||
- Building and Installation
|
||||
- Command Line Parameters
|
||||
- Speed and Duplex Configuration
|
||||
- Additional Configurations
|
||||
- Known Issues
|
||||
- Support
|
||||
|
||||
|
||||
In This Release
|
||||
===============
|
||||
|
||||
This file describes the Linux* Base Driver for the Intel(R) PRO/1000 Family
|
||||
of Adapters. This driver includes support for Itanium(R)2-based systems.
|
||||
|
||||
For questions related to hardware requirements, refer to the documentation
|
||||
supplied with your Intel PRO/1000 adapter. All hardware requirements listed
|
||||
apply to use with Linux.
|
||||
|
||||
The following features are now available in supported kernels:
|
||||
- Native VLANs
|
||||
- Channel Bonding (teaming)
|
||||
- SNMP
|
||||
|
||||
Channel Bonding documentation can be found in the Linux kernel source:
|
||||
/Documentation/networking/bonding.txt
|
||||
|
||||
The driver information previously displayed in the /proc filesystem is not
|
||||
supported in this release. Alternatively, you can use ethtool (version 1.6
|
||||
or later), lspci, and ifconfig to obtain the same information.
|
||||
|
||||
Instructions on updating ethtool can be found in the section "Additional
|
||||
Configurations" later in this document.
|
||||
|
||||
NOTE: The Intel(R) 82562v 10/100 Network Connection only provides 10/100
|
||||
support.
|
||||
|
||||
|
||||
Identifying Your Adapter
|
||||
========================
|
||||
|
||||
For more information on how to identify your adapter, go to the Adapter &
|
||||
Driver ID Guide at:
|
||||
|
||||
http://support.intel.com/support/network/adapter/pro100/21397.htm
|
||||
http://support.intel.com/support/go/network/adapter/idguide.htm
|
||||
|
||||
For the latest Intel network drivers for Linux, refer to the following
|
||||
website. In the search field, enter your adapter name or type, or use the
|
||||
networking link on the left to search for your adapter:
|
||||
|
||||
http://downloadfinder.intel.com/scripts-df/support_intel.asp
|
||||
|
||||
http://support.intel.com/support/go/network/adapter/home.htm
|
||||
|
||||
Command Line Parameters
|
||||
=======================
|
||||
|
||||
If the driver is built as a module, the following optional parameters
|
||||
are used by entering them on the command line with the modprobe command
|
||||
using this syntax:
|
||||
|
||||
modprobe e1000 [<option>=<VAL1>,<VAL2>,...]
|
||||
|
||||
For example, with two PRO/1000 PCI adapters, entering:
|
||||
|
||||
modprobe e1000 TxDescriptors=80,128
|
||||
|
||||
loads the e1000 driver with 80 TX descriptors for the first adapter and
|
||||
128 TX descriptors for the second adapter.
|
||||
|
||||
The default value for each parameter is generally the recommended setting,
|
||||
unless otherwise noted.
|
||||
|
||||
@ -89,10 +42,6 @@ NOTES: For more information about the AutoNeg, Duplex, and Speed
|
||||
parameters, see the application note at:
|
||||
http://www.intel.com/design/network/applnots/ap450.htm
|
||||
|
||||
A descriptor describes a data buffer and attributes related to
|
||||
the data buffer. This information is accessed by the hardware.
|
||||
|
||||
|
||||
AutoNeg
|
||||
-------
|
||||
(Supported only on adapters with copper connections)
|
||||
@ -106,7 +55,6 @@ Duplex parameters must not be specified.
|
||||
NOTE: Refer to the Speed and Duplex section of this readme for more
|
||||
information on the AutoNeg parameter.
|
||||
|
||||
|
||||
Duplex
|
||||
------
|
||||
(Supported only on adapters with copper connections)
|
||||
@ -119,7 +67,6 @@ set to auto-negotiate, the board auto-detects the correct duplex. If the
|
||||
link partner is forced (either full or half), Duplex defaults to half-
|
||||
duplex.
|
||||
|
||||
|
||||
FlowControl
|
||||
-----------
|
||||
Valid Range: 0-3 (0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx)
|
||||
@ -128,16 +75,16 @@ Default Value: Reads flow control settings from the EEPROM
|
||||
This parameter controls the automatic generation(Tx) and response(Rx)
|
||||
to Ethernet PAUSE frames.
|
||||
|
||||
|
||||
InterruptThrottleRate
|
||||
---------------------
|
||||
(not supported on Intel(R) 82542, 82543 or 82544-based adapters)
|
||||
Valid Range: 0,1,3,100-100000 (0=off, 1=dynamic, 3=dynamic conservative)
|
||||
Valid Range: 0,1,3,4,100-100000 (0=off, 1=dynamic, 3=dynamic conservative,
|
||||
4=simplified balancing)
|
||||
Default Value: 3
|
||||
|
||||
The driver can limit the amount of interrupts per second that the adapter
|
||||
will generate for incoming packets. It does this by writing a value to the
|
||||
adapter that is based on the maximum amount of interrupts that the adapter
|
||||
will generate for incoming packets. It does this by writing a value to the
|
||||
adapter that is based on the maximum amount of interrupts that the adapter
|
||||
will generate per second.
|
||||
|
||||
Setting InterruptThrottleRate to a value greater or equal to 100
|
||||
@ -146,37 +93,43 @@ per second, even if more packets have come in. This reduces interrupt
|
||||
load on the system and can lower CPU utilization under heavy load,
|
||||
but will increase latency as packets are not processed as quickly.
|
||||
|
||||
The default behaviour of the driver previously assumed a static
|
||||
InterruptThrottleRate value of 8000, providing a good fallback value for
|
||||
all traffic types,but lacking in small packet performance and latency.
|
||||
The hardware can handle many more small packets per second however, and
|
||||
The default behaviour of the driver previously assumed a static
|
||||
InterruptThrottleRate value of 8000, providing a good fallback value for
|
||||
all traffic types,but lacking in small packet performance and latency.
|
||||
The hardware can handle many more small packets per second however, and
|
||||
for this reason an adaptive interrupt moderation algorithm was implemented.
|
||||
|
||||
Since 7.3.x, the driver has two adaptive modes (setting 1 or 3) in which
|
||||
it dynamically adjusts the InterruptThrottleRate value based on the traffic
|
||||
it dynamically adjusts the InterruptThrottleRate value based on the traffic
|
||||
that it receives. After determining the type of incoming traffic in the last
|
||||
timeframe, it will adjust the InterruptThrottleRate to an appropriate value
|
||||
timeframe, it will adjust the InterruptThrottleRate to an appropriate value
|
||||
for that traffic.
|
||||
|
||||
The algorithm classifies the incoming traffic every interval into
|
||||
classes. Once the class is determined, the InterruptThrottleRate value is
|
||||
adjusted to suit that traffic type the best. There are three classes defined:
|
||||
classes. Once the class is determined, the InterruptThrottleRate value is
|
||||
adjusted to suit that traffic type the best. There are three classes defined:
|
||||
"Bulk traffic", for large amounts of packets of normal size; "Low latency",
|
||||
for small amounts of traffic and/or a significant percentage of small
|
||||
packets; and "Lowest latency", for almost completely small packets or
|
||||
packets; and "Lowest latency", for almost completely small packets or
|
||||
minimal traffic.
|
||||
|
||||
In dynamic conservative mode, the InterruptThrottleRate value is set to 4000
|
||||
for traffic that falls in class "Bulk traffic". If traffic falls in the "Low
|
||||
latency" or "Lowest latency" class, the InterruptThrottleRate is increased
|
||||
In dynamic conservative mode, the InterruptThrottleRate value is set to 4000
|
||||
for traffic that falls in class "Bulk traffic". If traffic falls in the "Low
|
||||
latency" or "Lowest latency" class, the InterruptThrottleRate is increased
|
||||
stepwise to 20000. This default mode is suitable for most applications.
|
||||
|
||||
For situations where low latency is vital such as cluster or
|
||||
grid computing, the algorithm can reduce latency even more when
|
||||
InterruptThrottleRate is set to mode 1. In this mode, which operates
|
||||
the same as mode 3, the InterruptThrottleRate will be increased stepwise to
|
||||
the same as mode 3, the InterruptThrottleRate will be increased stepwise to
|
||||
70000 for traffic in class "Lowest latency".
|
||||
|
||||
In simplified mode the interrupt rate is based on the ratio of Tx and
|
||||
Rx traffic. If the bytes per second rate is approximately equal, the
|
||||
interrupt rate will drop as low as 2000 interrupts per second. If the
|
||||
traffic is mostly transmit or mostly receive, the interrupt rate could
|
||||
be as high as 8000.
|
||||
|
||||
Setting InterruptThrottleRate to 0 turns off any interrupt moderation
|
||||
and may improve small packet latency, but is generally not suitable
|
||||
for bulk throughput traffic.
|
||||
@ -212,8 +165,6 @@ NOTE: When e1000 is loaded with default settings and multiple adapters
|
||||
be platform-specific. If CPU utilization is not a concern, use
|
||||
RX_POLLING (NAPI) and default driver settings.
|
||||
|
||||
|
||||
|
||||
RxDescriptors
|
||||
-------------
|
||||
Valid Range: 80-256 for 82542 and 82543-based adapters
|
||||
@ -225,15 +176,14 @@ by the driver. Increasing this value allows the driver to buffer more
|
||||
incoming packets, at the expense of increased system memory utilization.
|
||||
|
||||
Each descriptor is 16 bytes. A receive buffer is also allocated for each
|
||||
descriptor and can be either 2048, 4096, 8192, or 16384 bytes, depending
|
||||
descriptor and can be either 2048, 4096, 8192, or 16384 bytes, depending
|
||||
on the MTU setting. The maximum MTU size is 16110.
|
||||
|
||||
NOTE: MTU designates the frame size. It only needs to be set for Jumbo
|
||||
Frames. Depending on the available system resources, the request
|
||||
for a higher number of receive descriptors may be denied. In this
|
||||
NOTE: MTU designates the frame size. It only needs to be set for Jumbo
|
||||
Frames. Depending on the available system resources, the request
|
||||
for a higher number of receive descriptors may be denied. In this
|
||||
case, use a lower number.
|
||||
|
||||
|
||||
RxIntDelay
|
||||
----------
|
||||
Valid Range: 0-65535 (0=off)
|
||||
@ -254,7 +204,6 @@ CAUTION: When setting RxIntDelay to a value other than 0, adapters may
|
||||
restoring the network connection. To eliminate the potential
|
||||
for the hang ensure that RxIntDelay is set to 0.
|
||||
|
||||
|
||||
RxAbsIntDelay
|
||||
-------------
|
||||
(This parameter is supported only on 82540, 82545 and later adapters.)
|
||||
@ -268,7 +217,6 @@ packet is received within the set amount of time. Proper tuning,
|
||||
along with RxIntDelay, may improve traffic throughput in specific network
|
||||
conditions.
|
||||
|
||||
|
||||
Speed
|
||||
-----
|
||||
(This parameter is supported only on adapters with copper connections.)
|
||||
@ -280,7 +228,6 @@ Speed forces the line speed to the specified value in megabits per second
|
||||
partner is set to auto-negotiate, the board will auto-detect the correct
|
||||
speed. Duplex should also be set when Speed is set to either 10 or 100.
|
||||
|
||||
|
||||
TxDescriptors
|
||||
-------------
|
||||
Valid Range: 80-256 for 82542 and 82543-based adapters
|
||||
@ -295,6 +242,36 @@ NOTE: Depending on the available system resources, the request for a
|
||||
higher number of transmit descriptors may be denied. In this case,
|
||||
use a lower number.
|
||||
|
||||
TxDescriptorStep
|
||||
----------------
|
||||
Valid Range: 1 (use every Tx Descriptor)
|
||||
4 (use every 4th Tx Descriptor)
|
||||
|
||||
Default Value: 1 (use every Tx Descriptor)
|
||||
|
||||
On certain non-Intel architectures, it has been observed that intense TX
|
||||
traffic bursts of short packets may result in an improper descriptor
|
||||
writeback. If this occurs, the driver will report a "TX Timeout" and reset
|
||||
the adapter, after which the transmit flow will restart, though data may
|
||||
have stalled for as much as 10 seconds before it resumes.
|
||||
|
||||
The improper writeback does not occur on the first descriptor in a system
|
||||
memory cache-line, which is typically 32 bytes, or 4 descriptors long.
|
||||
|
||||
Setting TxDescriptorStep to a value of 4 will ensure that all TX descriptors
|
||||
are aligned to the start of a system memory cache line, and so this problem
|
||||
will not occur.
|
||||
|
||||
NOTES: Setting TxDescriptorStep to 4 effectively reduces the number of
|
||||
TxDescriptors available for transmits to 1/4 of the normal allocation.
|
||||
This has a possible negative performance impact, which may be
|
||||
compensated for by allocating more descriptors using the TxDescriptors
|
||||
module parameter.
|
||||
|
||||
There are other conditions which may result in "TX Timeout", which will
|
||||
not be resolved by the use of the TxDescriptorStep parameter. As the
|
||||
issue addressed by this parameter has never been observed on Intel
|
||||
Architecture platforms, it should not be used on Intel platforms.
|
||||
|
||||
TxIntDelay
|
||||
----------
|
||||
@ -307,7 +284,6 @@ efficiency if properly tuned for specific network traffic. If the
|
||||
system is reporting dropped transmits, this value may be set too high
|
||||
causing the driver to run out of available transmit descriptors.
|
||||
|
||||
|
||||
TxAbsIntDelay
|
||||
-------------
|
||||
(This parameter is supported only on 82540, 82545 and later adapters.)
|
||||
@ -330,6 +306,35 @@ Default Value: 1
|
||||
A value of '1' indicates that the driver should enable IP checksum
|
||||
offload for received packets (both UDP and TCP) to the adapter hardware.
|
||||
|
||||
Copybreak
|
||||
---------
|
||||
Valid Range: 0-xxxxxxx (0=off)
|
||||
Default Value: 256
|
||||
Usage: insmod e1000.ko copybreak=128
|
||||
|
||||
Driver copies all packets below or equaling this size to a fresh Rx
|
||||
buffer before handing it up the stack.
|
||||
|
||||
This parameter is different than other parameters, in that it is a
|
||||
single (not 1,1,1 etc.) parameter applied to all driver instances and
|
||||
it is also available during runtime at
|
||||
/sys/module/e1000/parameters/copybreak
|
||||
|
||||
SmartPowerDownEnable
|
||||
--------------------
|
||||
Valid Range: 0-1
|
||||
Default Value: 0 (disabled)
|
||||
|
||||
Allows PHY to turn off in lower power states. The user can turn off
|
||||
this parameter in supported chipsets.
|
||||
|
||||
KumeranLockLoss
|
||||
---------------
|
||||
Valid Range: 0-1
|
||||
Default Value: 1 (enabled)
|
||||
|
||||
This workaround skips resetting the PHY at shutdown for the initial
|
||||
silicon releases of ICH8 systems.
|
||||
|
||||
Speed and Duplex Configuration
|
||||
==============================
|
||||
@ -385,40 +390,9 @@ If the link partner is forced to a specific speed and duplex, then this
|
||||
parameter should not be used. Instead, use the Speed and Duplex parameters
|
||||
previously mentioned to force the adapter to the same speed and duplex.
|
||||
|
||||
|
||||
Additional Configurations
|
||||
=========================
|
||||
|
||||
Configuring the Driver on Different Distributions
|
||||
-------------------------------------------------
|
||||
Configuring a network driver to load properly when the system is started
|
||||
is distribution dependent. Typically, the configuration process involves
|
||||
adding an alias line to /etc/modules.conf or /etc/modprobe.conf as well
|
||||
as editing other system startup scripts and/or configuration files. Many
|
||||
popular Linux distributions ship with tools to make these changes for you.
|
||||
To learn the proper way to configure a network device for your system,
|
||||
refer to your distribution documentation. If during this process you are
|
||||
asked for the driver or module name, the name for the Linux Base Driver
|
||||
for the Intel(R) PRO/1000 Family of Adapters is e1000.
|
||||
|
||||
As an example, if you install the e1000 driver for two PRO/1000 adapters
|
||||
(eth0 and eth1) and set the speed and duplex to 10full and 100half, add
|
||||
the following to modules.conf or or modprobe.conf:
|
||||
|
||||
alias eth0 e1000
|
||||
alias eth1 e1000
|
||||
options e1000 Speed=10,100 Duplex=2,1
|
||||
|
||||
Viewing Link Messages
|
||||
---------------------
|
||||
Link messages will not be displayed to the console if the distribution is
|
||||
restricting system messages. In order to see network driver link messages
|
||||
on your console, set dmesg to eight by entering the following:
|
||||
|
||||
dmesg -n 8
|
||||
|
||||
NOTE: This setting is not saved across reboots.
|
||||
|
||||
Jumbo Frames
|
||||
------------
|
||||
Jumbo Frames support is enabled by changing the MTU to a value larger than
|
||||
@ -437,9 +411,11 @@ Additional Configurations
|
||||
setting in a different location.
|
||||
|
||||
Notes:
|
||||
|
||||
- To enable Jumbo Frames, increase the MTU size on the interface beyond
|
||||
1500.
|
||||
Degradation in throughput performance may be observed in some Jumbo frames
|
||||
environments. If this is observed, increasing the application's socket buffer
|
||||
size and/or increasing the /proc/sys/net/ipv4/tcp_*mem entry values may help.
|
||||
See the specific application manual and /usr/src/linux*/Documentation/
|
||||
networking/ip-sysctl.txt for more details.
|
||||
|
||||
- The maximum MTU setting for Jumbo Frames is 16110. This value coincides
|
||||
with the maximum Jumbo Frames size of 16128.
|
||||
@ -447,40 +423,11 @@ Additional Configurations
|
||||
- Using Jumbo Frames at 10 or 100 Mbps may result in poor performance or
|
||||
loss of link.
|
||||
|
||||
- Some Intel gigabit adapters that support Jumbo Frames have a frame size
|
||||
limit of 9238 bytes, with a corresponding MTU size limit of 9216 bytes.
|
||||
The adapters with this limitation are based on the Intel(R) 82571EB,
|
||||
82572EI, 82573L and 80003ES2LAN controller. These correspond to the
|
||||
following product names:
|
||||
Intel(R) PRO/1000 PT Server Adapter
|
||||
Intel(R) PRO/1000 PT Desktop Adapter
|
||||
Intel(R) PRO/1000 PT Network Connection
|
||||
Intel(R) PRO/1000 PT Dual Port Server Adapter
|
||||
Intel(R) PRO/1000 PT Dual Port Network Connection
|
||||
Intel(R) PRO/1000 PF Server Adapter
|
||||
Intel(R) PRO/1000 PF Network Connection
|
||||
Intel(R) PRO/1000 PF Dual Port Server Adapter
|
||||
Intel(R) PRO/1000 PB Server Connection
|
||||
Intel(R) PRO/1000 PL Network Connection
|
||||
Intel(R) PRO/1000 EB Network Connection with I/O Acceleration
|
||||
Intel(R) PRO/1000 EB Backplane Connection with I/O Acceleration
|
||||
Intel(R) PRO/1000 PT Quad Port Server Adapter
|
||||
|
||||
- Adapters based on the Intel(R) 82542 and 82573V/E controller do not
|
||||
support Jumbo Frames. These correspond to the following product names:
|
||||
Intel(R) PRO/1000 Gigabit Server Adapter
|
||||
Intel(R) PRO/1000 PM Network Connection
|
||||
|
||||
- The following adapters do not support Jumbo Frames:
|
||||
Intel(R) 82562V 10/100 Network Connection
|
||||
Intel(R) 82566DM Gigabit Network Connection
|
||||
Intel(R) 82566DC Gigabit Network Connection
|
||||
Intel(R) 82566MM Gigabit Network Connection
|
||||
Intel(R) 82566MC Gigabit Network Connection
|
||||
Intel(R) 82562GT 10/100 Network Connection
|
||||
Intel(R) 82562G 10/100 Network Connection
|
||||
|
||||
|
||||
Ethtool
|
||||
-------
|
||||
The driver utilizes the ethtool interface for driver configuration and
|
||||
@ -490,142 +437,14 @@ Additional Configurations
|
||||
The latest release of ethtool can be found from
|
||||
http://sourceforge.net/projects/gkernel.
|
||||
|
||||
NOTE: Ethtool 1.6 only supports a limited set of ethtool options. Support
|
||||
for a more complete ethtool feature set can be enabled by upgrading
|
||||
ethtool to ethtool-1.8.1.
|
||||
|
||||
Enabling Wake on LAN* (WoL)
|
||||
---------------------------
|
||||
WoL is configured through the Ethtool* utility. Ethtool is included with
|
||||
all versions of Red Hat after Red Hat 7.2. For other Linux distributions,
|
||||
download and install Ethtool from the following website:
|
||||
http://sourceforge.net/projects/gkernel.
|
||||
|
||||
For instructions on enabling WoL with Ethtool, refer to the website listed
|
||||
above.
|
||||
WoL is configured through the Ethtool* utility.
|
||||
|
||||
WoL will be enabled on the system during the next shut down or reboot.
|
||||
For this driver version, in order to enable WoL, the e1000 driver must be
|
||||
loaded when shutting down or rebooting the system.
|
||||
|
||||
Wake On LAN is only supported on port A for the following devices:
|
||||
Intel(R) PRO/1000 PT Dual Port Network Connection
|
||||
Intel(R) PRO/1000 PT Dual Port Server Connection
|
||||
Intel(R) PRO/1000 PT Dual Port Server Adapter
|
||||
Intel(R) PRO/1000 PF Dual Port Server Adapter
|
||||
Intel(R) PRO/1000 PT Quad Port Server Adapter
|
||||
|
||||
NAPI
|
||||
----
|
||||
NAPI (Rx polling mode) is enabled in the e1000 driver.
|
||||
|
||||
See www.cyberus.ca/~hadi/usenix-paper.tgz for more information on NAPI.
|
||||
|
||||
|
||||
Known Issues
|
||||
============
|
||||
|
||||
Dropped Receive Packets on Half-duplex 10/100 Networks
|
||||
------------------------------------------------------
|
||||
If you have an Intel PCI Express adapter running at 10mbps or 100mbps, half-
|
||||
duplex, you may observe occasional dropped receive packets. There are no
|
||||
workarounds for this problem in this network configuration. The network must
|
||||
be updated to operate in full-duplex, and/or 1000mbps only.
|
||||
|
||||
Jumbo Frames System Requirement
|
||||
-------------------------------
|
||||
Memory allocation failures have been observed on Linux systems with 64 MB
|
||||
of RAM or less that are running Jumbo Frames. If you are using Jumbo
|
||||
Frames, your system may require more than the advertised minimum
|
||||
requirement of 64 MB of system memory.
|
||||
|
||||
Performance Degradation with Jumbo Frames
|
||||
-----------------------------------------
|
||||
Degradation in throughput performance may be observed in some Jumbo frames
|
||||
environments. If this is observed, increasing the application's socket
|
||||
buffer size and/or increasing the /proc/sys/net/ipv4/tcp_*mem entry values
|
||||
may help. See the specific application manual and
|
||||
/usr/src/linux*/Documentation/
|
||||
networking/ip-sysctl.txt for more details.
|
||||
|
||||
Jumbo Frames on Foundry BigIron 8000 switch
|
||||
-------------------------------------------
|
||||
There is a known issue using Jumbo frames when connected to a Foundry
|
||||
BigIron 8000 switch. This is a 3rd party limitation. If you experience
|
||||
loss of packets, lower the MTU size.
|
||||
|
||||
Allocating Rx Buffers when Using Jumbo Frames
|
||||
---------------------------------------------
|
||||
Allocating Rx buffers when using Jumbo Frames on 2.6.x kernels may fail if
|
||||
the available memory is heavily fragmented. This issue may be seen with PCI-X
|
||||
adapters or with packet split disabled. This can be reduced or eliminated
|
||||
by changing the amount of available memory for receive buffer allocation, by
|
||||
increasing /proc/sys/vm/min_free_kbytes.
|
||||
|
||||
Multiple Interfaces on Same Ethernet Broadcast Network
|
||||
------------------------------------------------------
|
||||
Due to the default ARP behavior on Linux, it is not possible to have
|
||||
one system on two IP networks in the same Ethernet broadcast domain
|
||||
(non-partitioned switch) behave as expected. All Ethernet interfaces
|
||||
will respond to IP traffic for any IP address assigned to the system.
|
||||
This results in unbalanced receive traffic.
|
||||
|
||||
If you have multiple interfaces in a server, either turn on ARP
|
||||
filtering by entering:
|
||||
|
||||
echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter
|
||||
(this only works if your kernel's version is higher than 2.4.5),
|
||||
|
||||
NOTE: This setting is not saved across reboots. The configuration
|
||||
change can be made permanent by adding the line:
|
||||
net.ipv4.conf.all.arp_filter = 1
|
||||
to the file /etc/sysctl.conf
|
||||
|
||||
or,
|
||||
|
||||
install the interfaces in separate broadcast domains (either in
|
||||
different switches or in a switch partitioned to VLANs).
|
||||
|
||||
82541/82547 can't link or are slow to link with some link partners
|
||||
-----------------------------------------------------------------
|
||||
There is a known compatibility issue with 82541/82547 and some
|
||||
low-end switches where the link will not be established, or will
|
||||
be slow to establish. In particular, these switches are known to
|
||||
be incompatible with 82541/82547:
|
||||
|
||||
Planex FXG-08TE
|
||||
I-O Data ETG-SH8
|
||||
|
||||
To workaround this issue, the driver can be compiled with an override
|
||||
of the PHY's master/slave setting. Forcing master or forcing slave
|
||||
mode will improve time-to-link.
|
||||
|
||||
# make CFLAGS_EXTRA=-DE1000_MASTER_SLAVE=<n>
|
||||
|
||||
Where <n> is:
|
||||
|
||||
0 = Hardware default
|
||||
1 = Master mode
|
||||
2 = Slave mode
|
||||
3 = Auto master/slave
|
||||
|
||||
Disable rx flow control with ethtool
|
||||
------------------------------------
|
||||
In order to disable receive flow control using ethtool, you must turn
|
||||
off auto-negotiation on the same command line.
|
||||
|
||||
For example:
|
||||
|
||||
ethtool -A eth? autoneg off rx off
|
||||
|
||||
Unplugging network cable while ethtool -p is running
|
||||
----------------------------------------------------
|
||||
In kernel versions 2.5.50 and later (including 2.6 kernel), unplugging
|
||||
the network cable while ethtool -p is running will cause the system to
|
||||
become unresponsive to keyboard commands, except for control-alt-delete.
|
||||
Restarting the system appears to be the only remedy.
|
||||
|
||||
|
||||
Support
|
||||
=======
|
||||
|
||||
|
||||
302
Documentation/networking/e1000e.txt
Normal file
302
Documentation/networking/e1000e.txt
Normal file
@ -0,0 +1,302 @@
|
||||
Linux* Driver for Intel(R) Network Connection
|
||||
===============================================================
|
||||
|
||||
Intel Gigabit Linux driver.
|
||||
Copyright(c) 1999 - 2010 Intel Corporation.
|
||||
|
||||
Contents
|
||||
========
|
||||
|
||||
- Identifying Your Adapter
|
||||
- Command Line Parameters
|
||||
- Additional Configurations
|
||||
- Support
|
||||
|
||||
Identifying Your Adapter
|
||||
========================
|
||||
|
||||
The e1000e driver supports all PCI Express Intel(R) Gigabit Network
|
||||
Connections, except those that are 82575, 82576 and 82580-based*.
|
||||
|
||||
* NOTE: The Intel(R) PRO/1000 P Dual Port Server Adapter is supported by
|
||||
the e1000 driver, not the e1000e driver due to the 82546 part being used
|
||||
behind a PCI Express bridge.
|
||||
|
||||
For more information on how to identify your adapter, go to the Adapter &
|
||||
Driver ID Guide at:
|
||||
|
||||
http://support.intel.com/support/go/network/adapter/idguide.htm
|
||||
|
||||
For the latest Intel network drivers for Linux, refer to the following
|
||||
website. In the search field, enter your adapter name or type, or use the
|
||||
networking link on the left to search for your adapter:
|
||||
|
||||
http://support.intel.com/support/go/network/adapter/home.htm
|
||||
|
||||
Command Line Parameters
|
||||
=======================
|
||||
|
||||
The default value for each parameter is generally the recommended setting,
|
||||
unless otherwise noted.
|
||||
|
||||
NOTES: For more information about the InterruptThrottleRate,
|
||||
RxIntDelay, TxIntDelay, RxAbsIntDelay, and TxAbsIntDelay
|
||||
parameters, see the application note at:
|
||||
http://www.intel.com/design/network/applnots/ap450.htm
|
||||
|
||||
InterruptThrottleRate
|
||||
---------------------
|
||||
Valid Range: 0,1,3,4,100-100000 (0=off, 1=dynamic, 3=dynamic conservative,
|
||||
4=simplified balancing)
|
||||
Default Value: 3
|
||||
|
||||
The driver can limit the amount of interrupts per second that the adapter
|
||||
will generate for incoming packets. It does this by writing a value to the
|
||||
adapter that is based on the maximum amount of interrupts that the adapter
|
||||
will generate per second.
|
||||
|
||||
Setting InterruptThrottleRate to a value greater or equal to 100
|
||||
will program the adapter to send out a maximum of that many interrupts
|
||||
per second, even if more packets have come in. This reduces interrupt
|
||||
load on the system and can lower CPU utilization under heavy load,
|
||||
but will increase latency as packets are not processed as quickly.
|
||||
|
||||
The driver has two adaptive modes (setting 1 or 3) in which
|
||||
it dynamically adjusts the InterruptThrottleRate value based on the traffic
|
||||
that it receives. After determining the type of incoming traffic in the last
|
||||
timeframe, it will adjust the InterruptThrottleRate to an appropriate value
|
||||
for that traffic.
|
||||
|
||||
The algorithm classifies the incoming traffic every interval into
|
||||
classes. Once the class is determined, the InterruptThrottleRate value is
|
||||
adjusted to suit that traffic type the best. There are three classes defined:
|
||||
"Bulk traffic", for large amounts of packets of normal size; "Low latency",
|
||||
for small amounts of traffic and/or a significant percentage of small
|
||||
packets; and "Lowest latency", for almost completely small packets or
|
||||
minimal traffic.
|
||||
|
||||
In dynamic conservative mode, the InterruptThrottleRate value is set to 4000
|
||||
for traffic that falls in class "Bulk traffic". If traffic falls in the "Low
|
||||
latency" or "Lowest latency" class, the InterruptThrottleRate is increased
|
||||
stepwise to 20000. This default mode is suitable for most applications.
|
||||
|
||||
For situations where low latency is vital such as cluster or
|
||||
grid computing, the algorithm can reduce latency even more when
|
||||
InterruptThrottleRate is set to mode 1. In this mode, which operates
|
||||
the same as mode 3, the InterruptThrottleRate will be increased stepwise to
|
||||
70000 for traffic in class "Lowest latency".
|
||||
|
||||
In simplified mode the interrupt rate is based on the ratio of Tx and
|
||||
Rx traffic. If the bytes per second rate is approximately equal the
|
||||
interrupt rate will drop as low as 2000 interrupts per second. If the
|
||||
traffic is mostly transmit or mostly receive, the interrupt rate could
|
||||
be as high as 8000.
|
||||
|
||||
Setting InterruptThrottleRate to 0 turns off any interrupt moderation
|
||||
and may improve small packet latency, but is generally not suitable
|
||||
for bulk throughput traffic.
|
||||
|
||||
NOTE: InterruptThrottleRate takes precedence over the TxAbsIntDelay and
|
||||
RxAbsIntDelay parameters. In other words, minimizing the receive
|
||||
and/or transmit absolute delays does not force the controller to
|
||||
generate more interrupts than what the Interrupt Throttle Rate
|
||||
allows.
|
||||
|
||||
NOTE: When e1000e is loaded with default settings and multiple adapters
|
||||
are in use simultaneously, the CPU utilization may increase non-
|
||||
linearly. In order to limit the CPU utilization without impacting
|
||||
the overall throughput, we recommend that you load the driver as
|
||||
follows:
|
||||
|
||||
modprobe e1000e InterruptThrottleRate=3000,3000,3000
|
||||
|
||||
This sets the InterruptThrottleRate to 3000 interrupts/sec for
|
||||
the first, second, and third instances of the driver. The range
|
||||
of 2000 to 3000 interrupts per second works on a majority of
|
||||
systems and is a good starting point, but the optimal value will
|
||||
be platform-specific. If CPU utilization is not a concern, use
|
||||
RX_POLLING (NAPI) and default driver settings.
|
||||
|
||||
RxIntDelay
|
||||
----------
|
||||
Valid Range: 0-65535 (0=off)
|
||||
Default Value: 0
|
||||
|
||||
This value delays the generation of receive interrupts in units of 1.024
|
||||
microseconds. Receive interrupt reduction can improve CPU efficiency if
|
||||
properly tuned for specific network traffic. Increasing this value adds
|
||||
extra latency to frame reception and can end up decreasing the throughput
|
||||
of TCP traffic. If the system is reporting dropped receives, this value
|
||||
may be set too high, causing the driver to run out of available receive
|
||||
descriptors.
|
||||
|
||||
CAUTION: When setting RxIntDelay to a value other than 0, adapters may
|
||||
hang (stop transmitting) under certain network conditions. If
|
||||
this occurs a NETDEV WATCHDOG message is logged in the system
|
||||
event log. In addition, the controller is automatically reset,
|
||||
restoring the network connection. To eliminate the potential
|
||||
for the hang ensure that RxIntDelay is set to 0.
|
||||
|
||||
RxAbsIntDelay
|
||||
-------------
|
||||
Valid Range: 0-65535 (0=off)
|
||||
Default Value: 8
|
||||
|
||||
This value, in units of 1.024 microseconds, limits the delay in which a
|
||||
receive interrupt is generated. Useful only if RxIntDelay is non-zero,
|
||||
this value ensures that an interrupt is generated after the initial
|
||||
packet is received within the set amount of time. Proper tuning,
|
||||
along with RxIntDelay, may improve traffic throughput in specific network
|
||||
conditions.
|
||||
|
||||
TxIntDelay
|
||||
----------
|
||||
Valid Range: 0-65535 (0=off)
|
||||
Default Value: 8
|
||||
|
||||
This value delays the generation of transmit interrupts in units of
|
||||
1.024 microseconds. Transmit interrupt reduction can improve CPU
|
||||
efficiency if properly tuned for specific network traffic. If the
|
||||
system is reporting dropped transmits, this value may be set too high
|
||||
causing the driver to run out of available transmit descriptors.
|
||||
|
||||
TxAbsIntDelay
|
||||
-------------
|
||||
Valid Range: 0-65535 (0=off)
|
||||
Default Value: 32
|
||||
|
||||
This value, in units of 1.024 microseconds, limits the delay in which a
|
||||
transmit interrupt is generated. Useful only if TxIntDelay is non-zero,
|
||||
this value ensures that an interrupt is generated after the initial
|
||||
packet is sent on the wire within the set amount of time. Proper tuning,
|
||||
along with TxIntDelay, may improve traffic throughput in specific
|
||||
network conditions.
|
||||
|
||||
Copybreak
|
||||
---------
|
||||
Valid Range: 0-xxxxxxx (0=off)
|
||||
Default Value: 256
|
||||
|
||||
Driver copies all packets below or equaling this size to a fresh Rx
|
||||
buffer before handing it up the stack.
|
||||
|
||||
This parameter is different than other parameters, in that it is a
|
||||
single (not 1,1,1 etc.) parameter applied to all driver instances and
|
||||
it is also available during runtime at
|
||||
/sys/module/e1000e/parameters/copybreak
|
||||
|
||||
SmartPowerDownEnable
|
||||
--------------------
|
||||
Valid Range: 0-1
|
||||
Default Value: 0 (disabled)
|
||||
|
||||
Allows PHY to turn off in lower power states. The user can set this parameter
|
||||
in supported chipsets.
|
||||
|
||||
KumeranLockLoss
|
||||
---------------
|
||||
Valid Range: 0-1
|
||||
Default Value: 1 (enabled)
|
||||
|
||||
This workaround skips resetting the PHY at shutdown for the initial
|
||||
silicon releases of ICH8 systems.
|
||||
|
||||
IntMode
|
||||
-------
|
||||
Valid Range: 0-2 (0=legacy, 1=MSI, 2=MSI-X)
|
||||
Default Value: 2
|
||||
|
||||
Allows changing the interrupt mode at module load time, without requiring a
|
||||
recompile. If the driver load fails to enable a specific interrupt mode, the
|
||||
driver will try other interrupt modes, from least to most compatible. The
|
||||
interrupt order is MSI-X, MSI, Legacy. If specifying MSI (IntMode=1)
|
||||
interrupts, only MSI and Legacy will be attempted.
|
||||
|
||||
CrcStripping
|
||||
------------
|
||||
Valid Range: 0-1
|
||||
Default Value: 1 (enabled)
|
||||
|
||||
Strip the CRC from received packets before sending up the network stack. If
|
||||
you have a machine with a BMC enabled but cannot receive IPMI traffic after
|
||||
loading or enabling the driver, try disabling this feature.
|
||||
|
||||
WriteProtectNVM
|
||||
---------------
|
||||
Valid Range: 0-1
|
||||
Default Value: 1 (enabled)
|
||||
|
||||
Set the hardware to ignore all write/erase cycles to the GbE region in the
|
||||
ICHx NVM (non-volatile memory). This feature can be disabled by the
|
||||
WriteProtectNVM module parameter (enabled by default) only after a hardware
|
||||
reset, but the machine must be power cycled before trying to enable writes.
|
||||
|
||||
Note: the kernel boot option iomem=relaxed may need to be set if the kernel
|
||||
config option CONFIG_STRICT_DEVMEM=y, if the root user wants to write the
|
||||
NVM from user space via ethtool.
|
||||
|
||||
Additional Configurations
|
||||
=========================
|
||||
|
||||
Jumbo Frames
|
||||
------------
|
||||
Jumbo Frames support is enabled by changing the MTU to a value larger than
|
||||
the default of 1500. Use the ifconfig command to increase the MTU size.
|
||||
For example:
|
||||
|
||||
ifconfig eth<x> mtu 9000 up
|
||||
|
||||
This setting is not saved across reboots.
|
||||
|
||||
Notes:
|
||||
|
||||
- The maximum MTU setting for Jumbo Frames is 9216. This value coincides
|
||||
with the maximum Jumbo Frames size of 9234 bytes.
|
||||
|
||||
- Using Jumbo Frames at 10 or 100 Mbps is not supported and may result in
|
||||
poor performance or loss of link.
|
||||
|
||||
- Some adapters limit Jumbo Frames sized packets to a maximum of
|
||||
4096 bytes and some adapters do not support Jumbo Frames.
|
||||
|
||||
|
||||
Ethtool
|
||||
-------
|
||||
The driver utilizes the ethtool interface for driver configuration and
|
||||
diagnostics, as well as displaying statistical information. We
|
||||
strongly recommend downloading the latest version of Ethtool at:
|
||||
|
||||
http://sourceforge.net/projects/gkernel.
|
||||
|
||||
Speed and Duplex
|
||||
----------------
|
||||
Speed and Duplex are configured through the Ethtool* utility. For
|
||||
instructions, refer to the Ethtool man page.
|
||||
|
||||
Enabling Wake on LAN* (WoL)
|
||||
---------------------------
|
||||
WoL is configured through the Ethtool* utility. For instructions on
|
||||
enabling WoL with Ethtool, refer to the Ethtool man page.
|
||||
|
||||
WoL will be enabled on the system during the next shut down or reboot.
|
||||
For this driver version, in order to enable WoL, the e1000e driver must be
|
||||
loaded when shutting down or rebooting the system.
|
||||
|
||||
In most cases Wake On LAN is only supported on port A for multiple port
|
||||
adapters. To verify if a port supports Wake on LAN run ethtool eth<X>.
|
||||
|
||||
|
||||
Support
|
||||
=======
|
||||
|
||||
For general information, go to the Intel support website at:
|
||||
|
||||
www.intel.com/support/
|
||||
|
||||
or the Intel Wired Networking project hosted by Sourceforge at:
|
||||
|
||||
http://sourceforge.net/projects/e1000
|
||||
|
||||
If an issue is identified with the released source code on the supported
|
||||
kernel with a supported adapter, email the specific information related
|
||||
to the issue to e1000-devel@lists.sf.net
|
||||
40
Documentation/networking/ixgbevf.txt
Executable file → Normal file
40
Documentation/networking/ixgbevf.txt
Executable file → Normal file
@ -1,19 +1,16 @@
|
||||
Linux* Base Driver for Intel(R) Network Connection
|
||||
==================================================
|
||||
|
||||
November 24, 2009
|
||||
Intel Gigabit Linux driver.
|
||||
Copyright(c) 1999 - 2010 Intel Corporation.
|
||||
|
||||
Contents
|
||||
========
|
||||
|
||||
- In This Release
|
||||
- Identifying Your Adapter
|
||||
- Known Issues/Troubleshooting
|
||||
- Support
|
||||
|
||||
In This Release
|
||||
===============
|
||||
|
||||
This file describes the ixgbevf Linux* Base Driver for Intel Network
|
||||
Connection.
|
||||
|
||||
@ -33,7 +30,7 @@ Identifying Your Adapter
|
||||
For more information on how to identify your adapter, go to the Adapter &
|
||||
Driver ID Guide at:
|
||||
|
||||
http://support.intel.com/support/network/sb/CS-008441.htm
|
||||
http://support.intel.com/support/go/network/adapter/idguide.htm
|
||||
|
||||
Known Issues/Troubleshooting
|
||||
============================
|
||||
@ -57,34 +54,3 @@ or the Intel Wired Networking project hosted by Sourceforge at:
|
||||
If an issue is identified with the released source code on the supported
|
||||
kernel with a supported adapter, email the specific information related
|
||||
to the issue to e1000-devel@lists.sf.net
|
||||
|
||||
License
|
||||
=======
|
||||
|
||||
Intel 10 Gigabit Linux driver.
|
||||
Copyright(c) 1999 - 2009 Intel Corporation.
|
||||
|
||||
This program is free software; you can redistribute it and/or modify it
|
||||
under the terms and conditions of the GNU General Public License,
|
||||
version 2, as published by the Free Software Foundation.
|
||||
|
||||
This program is distributed in the hope 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.
|
||||
|
||||
You should have received a copy of the GNU General Public License along with
|
||||
this program; if not, write to the Free Software Foundation, Inc.,
|
||||
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
|
||||
The full GNU General Public License is included in this distribution in
|
||||
the file called "COPYING".
|
||||
|
||||
Trademarks
|
||||
==========
|
||||
|
||||
Intel, Itanium, and Pentium are trademarks or registered trademarks of
|
||||
Intel Corporation or its subsidiaries in the United States and other
|
||||
countries.
|
||||
|
||||
* Other names and brands may be claimed as the property of others.
|
||||
|
||||
@ -13,7 +13,7 @@ regulators (where voltage output is controllable) and current sinks (where
|
||||
current limit is controllable).
|
||||
|
||||
(C) 2008 Wolfson Microelectronics PLC.
|
||||
Author: Liam Girdwood <lg@opensource.wolfsonmicro.com>
|
||||
Author: Liam Girdwood <lrg@slimlogic.co.uk>
|
||||
|
||||
|
||||
Nomenclature
|
||||
|
||||
@ -49,40 +49,13 @@ Table of Contents
|
||||
f) MDIO on GPIOs
|
||||
g) SPI busses
|
||||
|
||||
VII - Marvell Discovery mv64[345]6x System Controller chips
|
||||
1) The /system-controller node
|
||||
2) Child nodes of /system-controller
|
||||
a) Marvell Discovery MDIO bus
|
||||
b) Marvell Discovery ethernet controller
|
||||
c) Marvell Discovery PHY nodes
|
||||
d) Marvell Discovery SDMA nodes
|
||||
e) Marvell Discovery BRG nodes
|
||||
f) Marvell Discovery CUNIT nodes
|
||||
g) Marvell Discovery MPSCROUTING nodes
|
||||
h) Marvell Discovery MPSCINTR nodes
|
||||
i) Marvell Discovery MPSC nodes
|
||||
j) Marvell Discovery Watch Dog Timer nodes
|
||||
k) Marvell Discovery I2C nodes
|
||||
l) Marvell Discovery PIC (Programmable Interrupt Controller) nodes
|
||||
m) Marvell Discovery MPP (Multipurpose Pins) multiplexing nodes
|
||||
n) Marvell Discovery GPP (General Purpose Pins) nodes
|
||||
o) Marvell Discovery PCI host bridge node
|
||||
p) Marvell Discovery CPU Error nodes
|
||||
q) Marvell Discovery SRAM Controller nodes
|
||||
r) Marvell Discovery PCI Error Handler nodes
|
||||
s) Marvell Discovery Memory Controller nodes
|
||||
|
||||
VIII - Specifying interrupt information for devices
|
||||
VII - Specifying interrupt information for devices
|
||||
1) interrupts property
|
||||
2) interrupt-parent property
|
||||
3) OpenPIC Interrupt Controllers
|
||||
4) ISA Interrupt Controllers
|
||||
|
||||
IX - Specifying GPIO information for devices
|
||||
1) gpios property
|
||||
2) gpio-controller nodes
|
||||
|
||||
X - Specifying device power management information (sleep property)
|
||||
VIII - Specifying device power management information (sleep property)
|
||||
|
||||
Appendix A - Sample SOC node for MPC8540
|
||||
|
||||
|
||||
@ -560,7 +560,7 @@ The proper channel for reporting bugs is either through the Linux OS
|
||||
distribution company that provided your OS or by posting issues to the
|
||||
PowerPC development mailing list at:
|
||||
|
||||
linuxppc-dev@ozlabs.org
|
||||
linuxppc-dev@lists.ozlabs.org
|
||||
|
||||
This request is to provide a documented and searchable public exchange
|
||||
of the problems and solutions surrounding this driver for the benefit of
|
||||
|
||||
@ -300,6 +300,74 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
|
||||
control correctly. If you have problems regarding this, try
|
||||
another ALSA compliant mixer (alsamixer works).
|
||||
|
||||
Module snd-azt1605
|
||||
------------------
|
||||
|
||||
Module for Aztech Sound Galaxy soundcards based on the Aztech AZT1605
|
||||
chipset.
|
||||
|
||||
port - port # for BASE (0x220,0x240,0x260,0x280)
|
||||
wss_port - port # for WSS (0x530,0x604,0xe80,0xf40)
|
||||
irq - IRQ # for WSS (7,9,10,11)
|
||||
dma1 - DMA # for WSS playback (0,1,3)
|
||||
dma2 - DMA # for WSS capture (0,1), -1 = disabled (default)
|
||||
mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
|
||||
mpu_irq - IRQ # for MPU-401 UART (3,5,7,9), -1 = disabled (default)
|
||||
fm_port - port # for OPL3 (0x388), -1 = disabled (default)
|
||||
|
||||
This module supports multiple cards. It does not support autoprobe: port,
|
||||
wss_port, irq and dma1 have to be specified. The other values are
|
||||
optional.
|
||||
|
||||
"port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
|
||||
or the value stored in the card's EEPROM for cards that have an EEPROM and
|
||||
their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
|
||||
be choosen freely from the options enumerated above.
|
||||
|
||||
If dma2 is specified and different from dma1, the card will operate in
|
||||
full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
|
||||
enable capture since only channels 0 and 1 are available for capture.
|
||||
|
||||
Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
|
||||
mpu_port=0x330 mpu_irq=9 fm_port=0x388".
|
||||
|
||||
Whatever IRQ and DMA channels you pick, be sure to reserve them for
|
||||
legacy ISA in your BIOS.
|
||||
|
||||
Module snd-azt2316
|
||||
------------------
|
||||
|
||||
Module for Aztech Sound Galaxy soundcards based on the Aztech AZT2316
|
||||
chipset.
|
||||
|
||||
port - port # for BASE (0x220,0x240,0x260,0x280)
|
||||
wss_port - port # for WSS (0x530,0x604,0xe80,0xf40)
|
||||
irq - IRQ # for WSS (7,9,10,11)
|
||||
dma1 - DMA # for WSS playback (0,1,3)
|
||||
dma2 - DMA # for WSS capture (0,1), -1 = disabled (default)
|
||||
mpu_port - port # for MPU-401 UART (0x300,0x330), -1 = disabled (default)
|
||||
mpu_irq - IRQ # for MPU-401 UART (5,7,9,10), -1 = disabled (default)
|
||||
fm_port - port # for OPL3 (0x388), -1 = disabled (default)
|
||||
|
||||
This module supports multiple cards. It does not support autoprobe: port,
|
||||
wss_port, irq and dma1 have to be specified. The other values are
|
||||
optional.
|
||||
|
||||
"port" needs to match the BASE ADDRESS jumper on the card (0x220 or 0x240)
|
||||
or the value stored in the card's EEPROM for cards that have an EEPROM and
|
||||
their "CONFIG MODE" jumper set to "EEPROM SETTING". The other values can
|
||||
be choosen freely from the options enumerated above.
|
||||
|
||||
If dma2 is specified and different from dma1, the card will operate in
|
||||
full-duplex mode. When dma1=3, only dma2=0 is valid and the only way to
|
||||
enable capture since only channels 0 and 1 are available for capture.
|
||||
|
||||
Generic settings are "port=0x220 wss_port=0x530 irq=10 dma1=1 dma2=0
|
||||
mpu_port=0x330 mpu_irq=9 fm_port=0x388".
|
||||
|
||||
Whatever IRQ and DMA channels you pick, be sure to reserve them for
|
||||
legacy ISA in your BIOS.
|
||||
|
||||
Module snd-aw2
|
||||
--------------
|
||||
|
||||
@ -1641,20 +1709,6 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
|
||||
|
||||
This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
|
||||
|
||||
Module snd-sgalaxy
|
||||
------------------
|
||||
|
||||
Module for Aztech Sound Galaxy sound card.
|
||||
|
||||
sbport - Port # for SB16 interface (0x220,0x240)
|
||||
wssport - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
|
||||
irq - IRQ # (7,9,10,11)
|
||||
dma1 - DMA #
|
||||
|
||||
This module supports multiple cards.
|
||||
|
||||
The power-management is supported.
|
||||
|
||||
Module snd-sscape
|
||||
-----------------
|
||||
|
||||
|
||||
@ -296,6 +296,7 @@ Conexant 5051
|
||||
Conexant 5066
|
||||
=============
|
||||
laptop Basic Laptop config (default)
|
||||
hp-laptop HP laptops, e g G60
|
||||
dell-laptop Dell laptops
|
||||
dell-vostro Dell Vostro
|
||||
olpc-xo-1_5 OLPC XO 1.5
|
||||
|
||||
@ -57,9 +57,11 @@ dead. However, this detection isn't perfect on some devices. In such
|
||||
a case, you can change the default method via `position_fix` option.
|
||||
|
||||
`position_fix=1` means to use LPIB method explicitly.
|
||||
`position_fix=2` means to use the position-buffer. 0 is the default
|
||||
value, the automatic check and fallback to LPIB as described in the
|
||||
above. If you get a problem of repeated sounds, this option might
|
||||
`position_fix=2` means to use the position-buffer.
|
||||
`position_fix=3` means to use a combination of both methods, needed
|
||||
for some VIA and ATI controllers. 0 is the default value for all other
|
||||
controllers, the automatic check and fallback to LPIB as described in
|
||||
the above. If you get a problem of repeated sounds, this option might
|
||||
help.
|
||||
|
||||
In addition to that, every controller is known to be broken regarding
|
||||
|
||||
@ -478,7 +478,7 @@ static void prepare_hwpoison_fd(void)
|
||||
}
|
||||
|
||||
if (opt_unpoison && !hwpoison_forget_fd) {
|
||||
sprintf(buf, "%s/renew-pfn", hwpoison_debug_fs);
|
||||
sprintf(buf, "%s/unpoison-pfn", hwpoison_debug_fs);
|
||||
hwpoison_forget_fd = checked_open(buf, O_WRONLY);
|
||||
}
|
||||
}
|
||||
|
||||
380
Documentation/workqueue.txt
Normal file
380
Documentation/workqueue.txt
Normal file
@ -0,0 +1,380 @@
|
||||
|
||||
Concurrency Managed Workqueue (cmwq)
|
||||
|
||||
September, 2010 Tejun Heo <tj@kernel.org>
|
||||
Florian Mickler <florian@mickler.org>
|
||||
|
||||
CONTENTS
|
||||
|
||||
1. Introduction
|
||||
2. Why cmwq?
|
||||
3. The Design
|
||||
4. Application Programming Interface (API)
|
||||
5. Example Execution Scenarios
|
||||
6. Guidelines
|
||||
|
||||
|
||||
1. Introduction
|
||||
|
||||
There are many cases where an asynchronous process execution context
|
||||
is needed and the workqueue (wq) API is the most commonly used
|
||||
mechanism for such cases.
|
||||
|
||||
When such an asynchronous execution context is needed, a work item
|
||||
describing which function to execute is put on a queue. An
|
||||
independent thread serves as the asynchronous execution context. The
|
||||
queue is called workqueue and the thread is called worker.
|
||||
|
||||
While there are work items on the workqueue the worker executes the
|
||||
functions associated with the work items one after the other. When
|
||||
there is no work item left on the workqueue the worker becomes idle.
|
||||
When a new work item gets queued, the worker begins executing again.
|
||||
|
||||
|
||||
2. Why cmwq?
|
||||
|
||||
In the original wq implementation, a multi threaded (MT) wq had one
|
||||
worker thread per CPU and a single threaded (ST) wq had one worker
|
||||
thread system-wide. A single MT wq needed to keep around the same
|
||||
number of workers as the number of CPUs. The kernel grew a lot of MT
|
||||
wq users over the years and with the number of CPU cores continuously
|
||||
rising, some systems saturated the default 32k PID space just booting
|
||||
up.
|
||||
|
||||
Although MT wq wasted a lot of resource, the level of concurrency
|
||||
provided was unsatisfactory. The limitation was common to both ST and
|
||||
MT wq albeit less severe on MT. Each wq maintained its own separate
|
||||
worker pool. A MT wq could provide only one execution context per CPU
|
||||
while a ST wq one for the whole system. Work items had to compete for
|
||||
those very limited execution contexts leading to various problems
|
||||
including proneness to deadlocks around the single execution context.
|
||||
|
||||
The tension between the provided level of concurrency and resource
|
||||
usage also forced its users to make unnecessary tradeoffs like libata
|
||||
choosing to use ST wq for polling PIOs and accepting an unnecessary
|
||||
limitation that no two polling PIOs can progress at the same time. As
|
||||
MT wq don't provide much better concurrency, users which require
|
||||
higher level of concurrency, like async or fscache, had to implement
|
||||
their own thread pool.
|
||||
|
||||
Concurrency Managed Workqueue (cmwq) is a reimplementation of wq with
|
||||
focus on the following goals.
|
||||
|
||||
* Maintain compatibility with the original workqueue API.
|
||||
|
||||
* Use per-CPU unified worker pools shared by all wq to provide
|
||||
flexible level of concurrency on demand without wasting a lot of
|
||||
resource.
|
||||
|
||||
* Automatically regulate worker pool and level of concurrency so that
|
||||
the API users don't need to worry about such details.
|
||||
|
||||
|
||||
3. The Design
|
||||
|
||||
In order to ease the asynchronous execution of functions a new
|
||||
abstraction, the work item, is introduced.
|
||||
|
||||
A work item is a simple struct that holds a pointer to the function
|
||||
that is to be executed asynchronously. Whenever a driver or subsystem
|
||||
wants a function to be executed asynchronously it has to set up a work
|
||||
item pointing to that function and queue that work item on a
|
||||
workqueue.
|
||||
|
||||
Special purpose threads, called worker threads, execute the functions
|
||||
off of the queue, one after the other. If no work is queued, the
|
||||
worker threads become idle. These worker threads are managed in so
|
||||
called thread-pools.
|
||||
|
||||
The cmwq design differentiates between the user-facing workqueues that
|
||||
subsystems and drivers queue work items on and the backend mechanism
|
||||
which manages thread-pool and processes the queued work items.
|
||||
|
||||
The backend is called gcwq. There is one gcwq for each possible CPU
|
||||
and one gcwq to serve work items queued on unbound workqueues.
|
||||
|
||||
Subsystems and drivers can create and queue work items through special
|
||||
workqueue API functions as they see fit. They can influence some
|
||||
aspects of the way the work items are executed by setting flags on the
|
||||
workqueue they are putting the work item on. These flags include
|
||||
things like CPU locality, reentrancy, concurrency limits and more. To
|
||||
get a detailed overview refer to the API description of
|
||||
alloc_workqueue() below.
|
||||
|
||||
When a work item is queued to a workqueue, the target gcwq is
|
||||
determined according to the queue parameters and workqueue attributes
|
||||
and appended on the shared worklist of the gcwq. For example, unless
|
||||
specifically overridden, a work item of a bound workqueue will be
|
||||
queued on the worklist of exactly that gcwq that is associated to the
|
||||
CPU the issuer is running on.
|
||||
|
||||
For any worker pool implementation, managing the concurrency level
|
||||
(how many execution contexts are active) is an important issue. cmwq
|
||||
tries to keep the concurrency at a minimal but sufficient level.
|
||||
Minimal to save resources and sufficient in that the system is used at
|
||||
its full capacity.
|
||||
|
||||
Each gcwq bound to an actual CPU implements concurrency management by
|
||||
hooking into the scheduler. The gcwq is notified whenever an active
|
||||
worker wakes up or sleeps and keeps track of the number of the
|
||||
currently runnable workers. Generally, work items are not expected to
|
||||
hog a CPU and consume many cycles. That means maintaining just enough
|
||||
concurrency to prevent work processing from stalling should be
|
||||
optimal. As long as there are one or more runnable workers on the
|
||||
CPU, the gcwq doesn't start execution of a new work, but, when the
|
||||
last running worker goes to sleep, it immediately schedules a new
|
||||
worker so that the CPU doesn't sit idle while there are pending work
|
||||
items. This allows using a minimal number of workers without losing
|
||||
execution bandwidth.
|
||||
|
||||
Keeping idle workers around doesn't cost other than the memory space
|
||||
for kthreads, so cmwq holds onto idle ones for a while before killing
|
||||
them.
|
||||
|
||||
For an unbound wq, the above concurrency management doesn't apply and
|
||||
the gcwq for the pseudo unbound CPU tries to start executing all work
|
||||
items as soon as possible. The responsibility of regulating
|
||||
concurrency level is on the users. There is also a flag to mark a
|
||||
bound wq to ignore the concurrency management. Please refer to the
|
||||
API section for details.
|
||||
|
||||
Forward progress guarantee relies on that workers can be created when
|
||||
more execution contexts are necessary, which in turn is guaranteed
|
||||
through the use of rescue workers. All work items which might be used
|
||||
on code paths that handle memory reclaim are required to be queued on
|
||||
wq's that have a rescue-worker reserved for execution under memory
|
||||
pressure. Else it is possible that the thread-pool deadlocks waiting
|
||||
for execution contexts to free up.
|
||||
|
||||
|
||||
4. Application Programming Interface (API)
|
||||
|
||||
alloc_workqueue() allocates a wq. The original create_*workqueue()
|
||||
functions are deprecated and scheduled for removal. alloc_workqueue()
|
||||
takes three arguments - @name, @flags and @max_active. @name is the
|
||||
name of the wq and also used as the name of the rescuer thread if
|
||||
there is one.
|
||||
|
||||
A wq no longer manages execution resources but serves as a domain for
|
||||
forward progress guarantee, flush and work item attributes. @flags
|
||||
and @max_active control how work items are assigned execution
|
||||
resources, scheduled and executed.
|
||||
|
||||
@flags:
|
||||
|
||||
WQ_NON_REENTRANT
|
||||
|
||||
By default, a wq guarantees non-reentrance only on the same
|
||||
CPU. A work item may not be executed concurrently on the same
|
||||
CPU by multiple workers but is allowed to be executed
|
||||
concurrently on multiple CPUs. This flag makes sure
|
||||
non-reentrance is enforced across all CPUs. Work items queued
|
||||
to a non-reentrant wq are guaranteed to be executed by at most
|
||||
one worker system-wide at any given time.
|
||||
|
||||
WQ_UNBOUND
|
||||
|
||||
Work items queued to an unbound wq are served by a special
|
||||
gcwq which hosts workers which are not bound to any specific
|
||||
CPU. This makes the wq behave as a simple execution context
|
||||
provider without concurrency management. The unbound gcwq
|
||||
tries to start execution of work items as soon as possible.
|
||||
Unbound wq sacrifices locality but is useful for the following
|
||||
cases.
|
||||
|
||||
* Wide fluctuation in the concurrency level requirement is
|
||||
expected and using bound wq may end up creating large number
|
||||
of mostly unused workers across different CPUs as the issuer
|
||||
hops through different CPUs.
|
||||
|
||||
* Long running CPU intensive workloads which can be better
|
||||
managed by the system scheduler.
|
||||
|
||||
WQ_FREEZEABLE
|
||||
|
||||
A freezeable wq participates in the freeze phase of the system
|
||||
suspend operations. Work items on the wq are drained and no
|
||||
new work item starts execution until thawed.
|
||||
|
||||
WQ_RESCUER
|
||||
|
||||
All wq which might be used in the memory reclaim paths _MUST_
|
||||
have this flag set. This reserves one worker exclusively for
|
||||
the execution of this wq under memory pressure.
|
||||
|
||||
WQ_HIGHPRI
|
||||
|
||||
Work items of a highpri wq are queued at the head of the
|
||||
worklist of the target gcwq and start execution regardless of
|
||||
the current concurrency level. In other words, highpri work
|
||||
items will always start execution as soon as execution
|
||||
resource is available.
|
||||
|
||||
Ordering among highpri work items is preserved - a highpri
|
||||
work item queued after another highpri work item will start
|
||||
execution after the earlier highpri work item starts.
|
||||
|
||||
Although highpri work items are not held back by other
|
||||
runnable work items, they still contribute to the concurrency
|
||||
level. Highpri work items in runnable state will prevent
|
||||
non-highpri work items from starting execution.
|
||||
|
||||
This flag is meaningless for unbound wq.
|
||||
|
||||
WQ_CPU_INTENSIVE
|
||||
|
||||
Work items of a CPU intensive wq do not contribute to the
|
||||
concurrency level. In other words, runnable CPU intensive
|
||||
work items will not prevent other work items from starting
|
||||
execution. This is useful for bound work items which are
|
||||
expected to hog CPU cycles so that their execution is
|
||||
regulated by the system scheduler.
|
||||
|
||||
Although CPU intensive work items don't contribute to the
|
||||
concurrency level, start of their executions is still
|
||||
regulated by the concurrency management and runnable
|
||||
non-CPU-intensive work items can delay execution of CPU
|
||||
intensive work items.
|
||||
|
||||
This flag is meaningless for unbound wq.
|
||||
|
||||
WQ_HIGHPRI | WQ_CPU_INTENSIVE
|
||||
|
||||
This combination makes the wq avoid interaction with
|
||||
concurrency management completely and behave as a simple
|
||||
per-CPU execution context provider. Work items queued on a
|
||||
highpri CPU-intensive wq start execution as soon as resources
|
||||
are available and don't affect execution of other work items.
|
||||
|
||||
@max_active:
|
||||
|
||||
@max_active determines the maximum number of execution contexts per
|
||||
CPU which can be assigned to the work items of a wq. For example,
|
||||
with @max_active of 16, at most 16 work items of the wq can be
|
||||
executing at the same time per CPU.
|
||||
|
||||
Currently, for a bound wq, the maximum limit for @max_active is 512
|
||||
and the default value used when 0 is specified is 256. For an unbound
|
||||
wq, the limit is higher of 512 and 4 * num_possible_cpus(). These
|
||||
values are chosen sufficiently high such that they are not the
|
||||
limiting factor while providing protection in runaway cases.
|
||||
|
||||
The number of active work items of a wq is usually regulated by the
|
||||
users of the wq, more specifically, by how many work items the users
|
||||
may queue at the same time. Unless there is a specific need for
|
||||
throttling the number of active work items, specifying '0' is
|
||||
recommended.
|
||||
|
||||
Some users depend on the strict execution ordering of ST wq. The
|
||||
combination of @max_active of 1 and WQ_UNBOUND is used to achieve this
|
||||
behavior. Work items on such wq are always queued to the unbound gcwq
|
||||
and only one work item can be active at any given time thus achieving
|
||||
the same ordering property as ST wq.
|
||||
|
||||
|
||||
5. Example Execution Scenarios
|
||||
|
||||
The following example execution scenarios try to illustrate how cmwq
|
||||
behave under different configurations.
|
||||
|
||||
Work items w0, w1, w2 are queued to a bound wq q0 on the same CPU.
|
||||
w0 burns CPU for 5ms then sleeps for 10ms then burns CPU for 5ms
|
||||
again before finishing. w1 and w2 burn CPU for 5ms then sleep for
|
||||
10ms.
|
||||
|
||||
Ignoring all other tasks, works and processing overhead, and assuming
|
||||
simple FIFO scheduling, the following is one highly simplified version
|
||||
of possible sequences of events with the original wq.
|
||||
|
||||
TIME IN MSECS EVENT
|
||||
0 w0 starts and burns CPU
|
||||
5 w0 sleeps
|
||||
15 w0 wakes up and burns CPU
|
||||
20 w0 finishes
|
||||
20 w1 starts and burns CPU
|
||||
25 w1 sleeps
|
||||
35 w1 wakes up and finishes
|
||||
35 w2 starts and burns CPU
|
||||
40 w2 sleeps
|
||||
50 w2 wakes up and finishes
|
||||
|
||||
And with cmwq with @max_active >= 3,
|
||||
|
||||
TIME IN MSECS EVENT
|
||||
0 w0 starts and burns CPU
|
||||
5 w0 sleeps
|
||||
5 w1 starts and burns CPU
|
||||
10 w1 sleeps
|
||||
10 w2 starts and burns CPU
|
||||
15 w2 sleeps
|
||||
15 w0 wakes up and burns CPU
|
||||
20 w0 finishes
|
||||
20 w1 wakes up and finishes
|
||||
25 w2 wakes up and finishes
|
||||
|
||||
If @max_active == 2,
|
||||
|
||||
TIME IN MSECS EVENT
|
||||
0 w0 starts and burns CPU
|
||||
5 w0 sleeps
|
||||
5 w1 starts and burns CPU
|
||||
10 w1 sleeps
|
||||
15 w0 wakes up and burns CPU
|
||||
20 w0 finishes
|
||||
20 w1 wakes up and finishes
|
||||
20 w2 starts and burns CPU
|
||||
25 w2 sleeps
|
||||
35 w2 wakes up and finishes
|
||||
|
||||
Now, let's assume w1 and w2 are queued to a different wq q1 which has
|
||||
WQ_HIGHPRI set,
|
||||
|
||||
TIME IN MSECS EVENT
|
||||
0 w1 and w2 start and burn CPU
|
||||
5 w1 sleeps
|
||||
10 w2 sleeps
|
||||
10 w0 starts and burns CPU
|
||||
15 w0 sleeps
|
||||
15 w1 wakes up and finishes
|
||||
20 w2 wakes up and finishes
|
||||
25 w0 wakes up and burns CPU
|
||||
30 w0 finishes
|
||||
|
||||
If q1 has WQ_CPU_INTENSIVE set,
|
||||
|
||||
TIME IN MSECS EVENT
|
||||
0 w0 starts and burns CPU
|
||||
5 w0 sleeps
|
||||
5 w1 and w2 start and burn CPU
|
||||
10 w1 sleeps
|
||||
15 w2 sleeps
|
||||
15 w0 wakes up and burns CPU
|
||||
20 w0 finishes
|
||||
20 w1 wakes up and finishes
|
||||
25 w2 wakes up and finishes
|
||||
|
||||
|
||||
6. Guidelines
|
||||
|
||||
* Do not forget to use WQ_RESCUER if a wq may process work items which
|
||||
are used during memory reclaim. Each wq with WQ_RESCUER set has one
|
||||
rescuer thread reserved for it. If there is dependency among
|
||||
multiple work items used during memory reclaim, they should be
|
||||
queued to separate wq each with WQ_RESCUER.
|
||||
|
||||
* Unless strict ordering is required, there is no need to use ST wq.
|
||||
|
||||
* Unless there is a specific need, using 0 for @max_active is
|
||||
recommended. In most use cases, concurrency level usually stays
|
||||
well under the default limit.
|
||||
|
||||
* A wq serves as a domain for forward progress guarantee (WQ_RESCUER),
|
||||
flush and work item attributes. Work items which are not involved
|
||||
in memory reclaim and don't need to be flushed as a part of a group
|
||||
of work items, and don't require any special attribute, can use one
|
||||
of the system wq. There is no difference in execution
|
||||
characteristics between using a dedicated wq and a system wq.
|
||||
|
||||
* Unless work items are expected to consume a huge amount of CPU
|
||||
cycles, using a bound wq is usually beneficial due to the increased
|
||||
level of locality in wq operations and work item execution.
|
||||
193
MAINTAINERS
193
MAINTAINERS
@ -454,9 +454,20 @@ L: linux-rdma@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/infiniband/hw/amso1100/
|
||||
|
||||
ANALOG DEVICES INC ASOC DRIVERS
|
||||
L: uclinux-dist-devel@blackfin.uclinux.org
|
||||
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
|
||||
W: http://blackfin.uclinux.org/
|
||||
S: Supported
|
||||
F: sound/soc/blackfin/*
|
||||
F: sound/soc/codecs/ad1*
|
||||
F: sound/soc/codecs/adau*
|
||||
F: sound/soc/codecs/adav*
|
||||
F: sound/soc/codecs/ssm*
|
||||
|
||||
AOA (Apple Onboard Audio) ALSA DRIVER
|
||||
M: Johannes Berg <johannes@sipsolutions.net>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
F: sound/aoa/
|
||||
@ -951,6 +962,23 @@ W: http://www.fluff.org/ben/linux/
|
||||
S: Maintained
|
||||
F: arch/arm/mach-s3c6410/
|
||||
|
||||
ARM/S5P ARM ARCHITECTURES
|
||||
M: Kukjin Kim <kgene.kim@samsung.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
F: arch/arm/mach-s5p*/
|
||||
|
||||
ARM/SAMSUNG S5P SERIES FIMC SUPPORT
|
||||
M: Kyungmin Park <kyungmin.park@samsung.com>
|
||||
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
|
||||
L: linux-arm-kernel@lists.infradead.org
|
||||
L: linux-media@vger.kernel.org
|
||||
S: Maintained
|
||||
F: arch/arm/plat-s5p/dev-fimc*
|
||||
F: arch/arm/plat-samsung/include/plat/*fimc*
|
||||
F: drivers/media/video/s5p-fimc/
|
||||
|
||||
ARM/SHMOBILE ARM ARCHITECTURE
|
||||
M: Paul Mundt <lethal@linux-sh.org>
|
||||
M: Magnus Damm <magnus.damm@gmail.com>
|
||||
@ -1124,7 +1152,7 @@ ATLX ETHERNET DRIVERS
|
||||
M: Jay Cliburn <jcliburn@gmail.com>
|
||||
M: Chris Snook <chris.snook@gmail.com>
|
||||
M: Jie Yang <jie.yang@atheros.com>
|
||||
L: atl1-devel@lists.sourceforge.net
|
||||
L: netdev@vger.kernel.org
|
||||
W: http://sourceforge.net/projects/atl1
|
||||
W: http://atl1.sourceforge.net
|
||||
S: Maintained
|
||||
@ -1209,7 +1237,7 @@ F: drivers/auxdisplay/
|
||||
F: include/linux/cfag12864b.h
|
||||
|
||||
AVR32 ARCHITECTURE
|
||||
M: Haavard Skinnemoen <hskinnemoen@atmel.com>
|
||||
M: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
|
||||
W: http://www.atmel.com/products/AVR32/
|
||||
W: http://avr32linux.org/
|
||||
W: http://avrfreaks.net/
|
||||
@ -1217,7 +1245,7 @@ S: Supported
|
||||
F: arch/avr32/
|
||||
|
||||
AVR32/AT32AP MACHINE SUPPORT
|
||||
M: Haavard Skinnemoen <hskinnemoen@atmel.com>
|
||||
M: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
|
||||
S: Supported
|
||||
F: arch/avr32/mach-at32ap/
|
||||
|
||||
@ -1434,6 +1462,16 @@ S: Maintained
|
||||
F: Documentation/video4linux/cafe_ccic
|
||||
F: drivers/media/video/cafe_ccic*
|
||||
|
||||
CAIF NETWORK LAYER
|
||||
M: Sjur Braendeland <sjur.brandeland@stericsson.com>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Supported
|
||||
F: Documentation/networking/caif/
|
||||
F: drivers/net/caif/
|
||||
F: include/linux/caif/
|
||||
F: include/net/caif/
|
||||
F: net/caif/
|
||||
|
||||
CALGARY x86-64 IOMMU
|
||||
M: Muli Ben-Yehuda <muli@il.ibm.com>
|
||||
M: "Jon D. Mason" <jdmason@kudzu.us>
|
||||
@ -1472,8 +1510,8 @@ F: include/linux/can/platform/
|
||||
|
||||
CELL BROADBAND ENGINE ARCHITECTURE
|
||||
M: Arnd Bergmann <arnd@arndb.de>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: cbe-oss-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
L: cbe-oss-dev@lists.ozlabs.org
|
||||
W: http://www.ibm.com/developerworks/power/cell/
|
||||
S: Supported
|
||||
F: arch/powerpc/include/asm/cell*.h
|
||||
@ -1665,8 +1703,7 @@ F: kernel/cgroup*
|
||||
F: mm/*cgroup*
|
||||
|
||||
CORETEMP HARDWARE MONITORING DRIVER
|
||||
M: Rudolf Marek <r.marek@assembler.cz>
|
||||
M: Huaxu Wan <huaxu.wan@intel.com>
|
||||
M: Fenghua Yu <fenghua.yu@intel.com>
|
||||
L: lm-sensors@lm-sensors.org
|
||||
S: Maintained
|
||||
F: Documentation/hwmon/coretemp
|
||||
@ -2179,6 +2216,12 @@ W: http://acpi4asus.sf.net
|
||||
S: Maintained
|
||||
F: drivers/platform/x86/eeepc-laptop.c
|
||||
|
||||
EFIFB FRAMEBUFFER DRIVER
|
||||
L: linux-fbdev@vger.kernel.org
|
||||
M: Peter Jones <pjones@redhat.com>
|
||||
S: Maintained
|
||||
F: drivers/video/efifb.c
|
||||
|
||||
EFS FILESYSTEM
|
||||
W: http://aeschi.ch.eu.org/efs/
|
||||
S: Orphan
|
||||
@ -2191,6 +2234,12 @@ L: linux-rdma@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/infiniband/hw/ehca/
|
||||
|
||||
EHEA (IBM pSeries eHEA 10Gb ethernet adapter) DRIVER
|
||||
M: Breno Leitao <leitao@linux.vnet.ibm.com>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/ehea/
|
||||
|
||||
EMBEDDED LINUX
|
||||
M: Paul Gortmaker <paul.gortmaker@windriver.com>
|
||||
M: Matt Mackall <mpm@selenic.com>
|
||||
@ -2286,6 +2335,12 @@ S: Maintained
|
||||
F: Documentation/hwmon/f71805f
|
||||
F: drivers/hwmon/f71805f.c
|
||||
|
||||
FANOTIFY
|
||||
M: Eric Paris <eparis@redhat.com>
|
||||
S: Maintained
|
||||
F: fs/notify/fanotify/
|
||||
F: include/linux/fanotify.h
|
||||
|
||||
FARSYNC SYNCHRONOUS DRIVER
|
||||
M: Kevin Curtis <kevin.curtis@farsite.co.uk>
|
||||
W: http://www.farsite.co.uk/
|
||||
@ -2371,13 +2426,13 @@ F: include/linux/fb.h
|
||||
FREESCALE DMA DRIVER
|
||||
M: Li Yang <leoli@freescale.com>
|
||||
M: Zhang Wei <zw@zh-kernel.org>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: drivers/dma/fsldma.*
|
||||
|
||||
FREESCALE I2C CPM DRIVER
|
||||
M: Jochen Friedrich <jochen@scram.de>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
L: linux-i2c@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/i2c/busses/i2c-cpm.c
|
||||
@ -2393,7 +2448,7 @@ F: drivers/video/imxfb.c
|
||||
FREESCALE SOC FS_ENET DRIVER
|
||||
M: Pantelis Antoniou <pantelis.antoniou@gmail.com>
|
||||
M: Vitaly Bordug <vbordug@ru.mvista.com>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/fs_enet/
|
||||
@ -2401,7 +2456,7 @@ F: include/linux/fs_enet_pd.h
|
||||
|
||||
FREESCALE QUICC ENGINE LIBRARY
|
||||
M: Timur Tabi <timur@freescale.com>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Supported
|
||||
F: arch/powerpc/sysdev/qe_lib/
|
||||
F: arch/powerpc/include/asm/*qe.h
|
||||
@ -2409,27 +2464,27 @@ F: arch/powerpc/include/asm/*qe.h
|
||||
FREESCALE USB PERIPHERAL DRIVERS
|
||||
M: Li Yang <leoli@freescale.com>
|
||||
L: linux-usb@vger.kernel.org
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: drivers/usb/gadget/fsl*
|
||||
|
||||
FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
|
||||
M: Li Yang <leoli@freescale.com>
|
||||
L: netdev@vger.kernel.org
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: drivers/net/ucc_geth*
|
||||
|
||||
FREESCALE QUICC ENGINE UCC UART DRIVER
|
||||
M: Timur Tabi <timur@freescale.com>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Supported
|
||||
F: drivers/serial/ucc_uart.c
|
||||
|
||||
FREESCALE SOC SOUND DRIVERS
|
||||
M: Timur Tabi <timur@freescale.com>
|
||||
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Supported
|
||||
F: sound/soc/fsl/fsl*
|
||||
F: sound/soc/fsl/mpc8610_hpcd.c
|
||||
@ -2490,7 +2545,7 @@ S: Supported
|
||||
F: drivers/scsi/gdt*
|
||||
|
||||
GENERIC GPIO I2C DRIVER
|
||||
M: Haavard Skinnemoen <hskinnemoen@atmel.com>
|
||||
M: Haavard Skinnemoen <hskinnemoen@gmail.com>
|
||||
S: Supported
|
||||
F: drivers/i2c/busses/i2c-gpio.c
|
||||
F: include/linux/i2c-gpio.h
|
||||
@ -2564,7 +2619,7 @@ F: mm/memory-failure.c
|
||||
F: mm/hwpoison-inject.c
|
||||
|
||||
HYPERVISOR VIRTUAL CONSOLE DRIVER
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Odd Fixes
|
||||
F: drivers/char/hvc_*
|
||||
|
||||
@ -2625,9 +2680,14 @@ S: Maintained
|
||||
F: drivers/media/video/gspca/
|
||||
|
||||
HARDWARE MONITORING
|
||||
M: Jean Delvare <khali@linux-fr.org>
|
||||
M: Guenter Roeck <guenter.roeck@ericsson.com>
|
||||
L: lm-sensors@lm-sensors.org
|
||||
W: http://www.lm-sensors.org/
|
||||
S: Orphan
|
||||
T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-hwmon/
|
||||
T: quilt kernel.org/pub/linux/kernel/people/groeck/linux-staging/
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
|
||||
S: Maintained
|
||||
F: Documentation/hwmon/
|
||||
F: drivers/hwmon/
|
||||
F: include/linux/hwmon*.h
|
||||
@ -2765,11 +2825,6 @@ S: Maintained
|
||||
F: arch/x86/kernel/hpet.c
|
||||
F: arch/x86/include/asm/hpet.h
|
||||
|
||||
HPET: ACPI
|
||||
M: Bob Picco <bob.picco@hp.com>
|
||||
S: Maintained
|
||||
F: drivers/char/hpet.c
|
||||
|
||||
HPFS FILESYSTEM
|
||||
M: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
|
||||
W: http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi
|
||||
@ -3018,16 +3073,27 @@ L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/ixp2000/
|
||||
|
||||
INTEL ETHERNET DRIVERS (e100/e1000/e1000e/igb/igbvf/ixgb/ixgbe)
|
||||
INTEL ETHERNET DRIVERS (e100/e1000/e1000e/igb/igbvf/ixgb/ixgbe/ixgbevf)
|
||||
M: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
||||
M: Jesse Brandeburg <jesse.brandeburg@intel.com>
|
||||
M: Bruce Allan <bruce.w.allan@intel.com>
|
||||
M: Alex Duyck <alexander.h.duyck@intel.com>
|
||||
M: Carolyn Wyborny <carolyn.wyborny@intel.com>
|
||||
M: Don Skidmore <donald.c.skidmore@intel.com>
|
||||
M: Greg Rose <gregory.v.rose@intel.com>
|
||||
M: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
|
||||
M: Alex Duyck <alexander.h.duyck@intel.com>
|
||||
M: John Ronciak <john.ronciak@intel.com>
|
||||
L: e1000-devel@lists.sourceforge.net
|
||||
W: http://e1000.sourceforge.net/
|
||||
S: Supported
|
||||
F: Documentation/networking/e100.txt
|
||||
F: Documentation/networking/e1000.txt
|
||||
F: Documentation/networking/e1000e.txt
|
||||
F: Documentation/networking/igb.txt
|
||||
F: Documentation/networking/igbvf.txt
|
||||
F: Documentation/networking/ixgb.txt
|
||||
F: Documentation/networking/ixgbe.txt
|
||||
F: Documentation/networking/ixgbevf.txt
|
||||
F: drivers/net/e100.c
|
||||
F: drivers/net/e1000/
|
||||
F: drivers/net/e1000e/
|
||||
@ -3035,6 +3101,7 @@ F: drivers/net/igb/
|
||||
F: drivers/net/igbvf/
|
||||
F: drivers/net/ixgb/
|
||||
F: drivers/net/ixgbe/
|
||||
F: drivers/net/ixgbevf/
|
||||
|
||||
INTEL PRO/WIRELESS 2100 NETWORK CONNECTION SUPPORT
|
||||
L: linux-wireless@vger.kernel.org
|
||||
@ -3095,7 +3162,7 @@ F: drivers/net/ioc3-eth.c
|
||||
|
||||
IOC3 SERIAL DRIVER
|
||||
M: Pat Gefre <pfg@sgi.com>
|
||||
L: linux-mips@linux-mips.org
|
||||
L: linux-serial@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/serial/ioc3_serial.c
|
||||
|
||||
@ -3382,7 +3449,7 @@ F: drivers/s390/kvm/
|
||||
|
||||
KEXEC
|
||||
M: Eric Biederman <ebiederm@xmission.com>
|
||||
W: http://ftp.kernel.org/pub/linux/kernel/people/horms/kexec-tools/
|
||||
W: http://kernel.org/pub/linux/utils/kernel/kexec/
|
||||
L: kexec@lists.infradead.org
|
||||
S: Maintained
|
||||
F: include/linux/kexec.h
|
||||
@ -3476,9 +3543,9 @@ F: drivers/usb/misc/legousbtower.c
|
||||
|
||||
LGUEST
|
||||
M: Rusty Russell <rusty@rustcorp.com.au>
|
||||
L: lguest@ozlabs.org
|
||||
L: lguest@lists.ozlabs.org
|
||||
W: http://lguest.ozlabs.org/
|
||||
S: Maintained
|
||||
S: Odd Fixes
|
||||
F: Documentation/lguest/
|
||||
F: arch/x86/lguest/
|
||||
F: drivers/lguest/
|
||||
@ -3495,7 +3562,7 @@ LINUX FOR POWERPC (32-BIT AND 64-BIT)
|
||||
M: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
||||
M: Paul Mackerras <paulus@samba.org>
|
||||
W: http://www.penguinppc.org/
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
Q: http://patchwork.ozlabs.org/project/linuxppc-dev/list/
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git
|
||||
S: Supported
|
||||
@ -3505,14 +3572,14 @@ F: arch/powerpc/
|
||||
LINUX FOR POWER MACINTOSH
|
||||
M: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
||||
W: http://www.penguinppc.org/
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: arch/powerpc/platforms/powermac/
|
||||
F: drivers/macintosh/
|
||||
|
||||
LINUX FOR POWERPC EMBEDDED MPC5XXX
|
||||
M: Grant Likely <grant.likely@secretlab.ca>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
T: git git://git.secretlab.ca/git/linux-2.6.git
|
||||
S: Maintained
|
||||
F: arch/powerpc/platforms/512x/
|
||||
@ -3522,7 +3589,7 @@ LINUX FOR POWERPC EMBEDDED PPC4XX
|
||||
M: Josh Boyer <jwboyer@linux.vnet.ibm.com>
|
||||
M: Matt Porter <mporter@kernel.crashing.org>
|
||||
W: http://www.penguinppc.org/
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx.git
|
||||
S: Maintained
|
||||
F: arch/powerpc/platforms/40x/
|
||||
@ -3531,7 +3598,7 @@ F: arch/powerpc/platforms/44x/
|
||||
LINUX FOR POWERPC EMBEDDED XILINX VIRTEX
|
||||
M: Grant Likely <grant.likely@secretlab.ca>
|
||||
W: http://wiki.secretlab.ca/index.php/Linux_on_Xilinx_Virtex
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
T: git git://git.secretlab.ca/git/linux-2.6.git
|
||||
S: Maintained
|
||||
F: arch/powerpc/*/*virtex*
|
||||
@ -3541,20 +3608,20 @@ LINUX FOR POWERPC EMBEDDED PPC8XX
|
||||
M: Vitaly Bordug <vitb@kernel.crashing.org>
|
||||
M: Marcelo Tosatti <marcelo@kvack.org>
|
||||
W: http://www.penguinppc.org/
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: arch/powerpc/platforms/8xx/
|
||||
|
||||
LINUX FOR POWERPC EMBEDDED PPC83XX AND PPC85XX
|
||||
M: Kumar Gala <galak@kernel.crashing.org>
|
||||
W: http://www.penguinppc.org/
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: arch/powerpc/platforms/83xx/
|
||||
|
||||
LINUX FOR POWERPC PA SEMI PWRFICIENT
|
||||
M: Olof Johansson <olof@lixom.net>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: arch/powerpc/platforms/pasemi/
|
||||
F: drivers/*/*pasemi*
|
||||
@ -3743,9 +3810,8 @@ W: http://www.syskonnect.com
|
||||
S: Supported
|
||||
|
||||
MATROX FRAMEBUFFER DRIVER
|
||||
M: Petr Vandrovec <vandrove@vc.cvut.cz>
|
||||
L: linux-fbdev@vger.kernel.org
|
||||
S: Maintained
|
||||
S: Orphan
|
||||
F: drivers/video/matrox/matroxfb_*
|
||||
F: include/linux/matroxfb.h
|
||||
|
||||
@ -3869,10 +3935,8 @@ F: Documentation/serial/moxa-smartio
|
||||
F: drivers/char/mxser.*
|
||||
|
||||
MSI LAPTOP SUPPORT
|
||||
M: Lennart Poettering <mzxreary@0pointer.de>
|
||||
M: Lee, Chun-Yi <jlee@novell.com>
|
||||
L: platform-driver-x86@vger.kernel.org
|
||||
W: https://tango.0pointer.de/mailman/listinfo/s270-linux
|
||||
W: http://0pointer.de/lennart/tchibo.html
|
||||
S: Maintained
|
||||
F: drivers/platform/x86/msi-laptop.c
|
||||
|
||||
@ -3889,8 +3953,10 @@ S: Supported
|
||||
F: drivers/mfd/
|
||||
|
||||
MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
|
||||
S: Orphan
|
||||
M: Chris Ball <cjb@laptop.org>
|
||||
L: linux-mmc@vger.kernel.org
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
|
||||
S: Maintained
|
||||
F: drivers/mmc/
|
||||
F: include/linux/mmc/
|
||||
|
||||
@ -3907,13 +3973,12 @@ F: Documentation/sound/oss/MultiSound
|
||||
F: sound/oss/msnd*
|
||||
|
||||
MULTITECH MULTIPORT CARD (ISICOM)
|
||||
M: Jiri Slaby <jirislaby@gmail.com>
|
||||
S: Maintained
|
||||
S: Orphan
|
||||
F: drivers/char/isicom.c
|
||||
F: include/linux/isicom.h
|
||||
|
||||
MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
|
||||
M: Felipe Balbi <felipe.balbi@nokia.com>
|
||||
M: Felipe Balbi <balbi@ti.com>
|
||||
L: linux-usb@vger.kernel.org
|
||||
T: git git://gitorious.org/usb/usb.git
|
||||
S: Maintained
|
||||
@ -3933,8 +3998,8 @@ S: Maintained
|
||||
F: drivers/net/natsemi.c
|
||||
|
||||
NCP FILESYSTEM
|
||||
M: Petr Vandrovec <vandrove@vc.cvut.cz>
|
||||
S: Maintained
|
||||
M: Petr Vandrovec <petr@vandrovec.name>
|
||||
S: Odd Fixes
|
||||
F: fs/ncpfs/
|
||||
|
||||
NCR DUAL 700 SCSI DRIVER (MICROCHANNEL)
|
||||
@ -4211,7 +4276,7 @@ S: Maintained
|
||||
F: drivers/char/hw_random/omap-rng.c
|
||||
|
||||
OMAP USB SUPPORT
|
||||
M: Felipe Balbi <felipe.balbi@nokia.com>
|
||||
M: Felipe Balbi <balbi@ti.com>
|
||||
M: David Brownell <dbrownell@users.sourceforge.net>
|
||||
L: linux-usb@vger.kernel.org
|
||||
L: linux-omap@vger.kernel.org
|
||||
@ -4588,7 +4653,7 @@ F: include/linux/preempt.h
|
||||
PRISM54 WIRELESS DRIVER
|
||||
M: "Luis R. Rodriguez" <mcgrof@gmail.com>
|
||||
L: linux-wireless@vger.kernel.org
|
||||
W: http://prism54.org
|
||||
W: http://wireless.kernel.org/en/users/Drivers/p54
|
||||
S: Obsolete
|
||||
F: drivers/net/wireless/prism54/
|
||||
|
||||
@ -4601,14 +4666,14 @@ F: drivers/ata/sata_promise.*
|
||||
PS3 NETWORK SUPPORT
|
||||
M: Geoff Levand <geoff@infradead.org>
|
||||
L: netdev@vger.kernel.org
|
||||
L: cbe-oss-dev@ozlabs.org
|
||||
L: cbe-oss-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: drivers/net/ps3_gelic_net.*
|
||||
|
||||
PS3 PLATFORM SUPPORT
|
||||
M: Geoff Levand <geoff@infradead.org>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: cbe-oss-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
L: cbe-oss-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: arch/powerpc/boot/ps3*
|
||||
F: arch/powerpc/include/asm/lv1call.h
|
||||
@ -4622,7 +4687,7 @@ F: sound/ppc/snd_ps3*
|
||||
|
||||
PS3VRAM DRIVER
|
||||
M: Jim Paris <jim@jtan.com>
|
||||
L: cbe-oss-dev@ozlabs.org
|
||||
L: cbe-oss-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: drivers/block/ps3vram.c
|
||||
|
||||
@ -4789,6 +4854,7 @@ RCUTORTURE MODULE
|
||||
M: Josh Triplett <josh@freedesktop.org>
|
||||
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
|
||||
S: Supported
|
||||
T: git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git
|
||||
F: Documentation/RCU/torture.txt
|
||||
F: kernel/rcutorture.c
|
||||
|
||||
@ -4813,6 +4879,7 @@ M: Dipankar Sarma <dipankar@in.ibm.com>
|
||||
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
|
||||
W: http://www.rdrop.com/users/paulmck/rclock/
|
||||
S: Supported
|
||||
T: git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git
|
||||
F: Documentation/RCU/
|
||||
F: include/linux/rcu*
|
||||
F: include/linux/srcu*
|
||||
@ -4820,12 +4887,10 @@ F: kernel/rcu*
|
||||
F: kernel/srcu*
|
||||
X: kernel/rcutorture.c
|
||||
|
||||
REAL TIME CLOCK DRIVER
|
||||
REAL TIME CLOCK DRIVER (LEGACY)
|
||||
M: Paul Gortmaker <p_gortmaker@yahoo.com>
|
||||
S: Maintained
|
||||
F: Documentation/rtc.txt
|
||||
F: drivers/rtc/
|
||||
F: include/linux/rtc.h
|
||||
F: drivers/char/rtc.c
|
||||
|
||||
REAL TIME CLOCK (RTC) SUBSYSTEM
|
||||
M: Alessandro Zummo <a.zummo@towertech.it>
|
||||
@ -5068,13 +5133,15 @@ S: Maintained
|
||||
F: drivers/mmc/host/sdricoh_cs.c
|
||||
|
||||
SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
|
||||
S: Orphan
|
||||
M: Chris Ball <cjb@laptop.org>
|
||||
L: linux-mmc@vger.kernel.org
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
|
||||
S: Maintained
|
||||
F: drivers/mmc/host/sdhci.*
|
||||
|
||||
SECURE DIGITAL HOST CONTROLLER INTERFACE, OPEN FIRMWARE BINDINGS (SDHCI-OF)
|
||||
M: Anton Vorontsov <avorontsov@ru.mvista.com>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
L: linux-mmc@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/mmc/host/sdhci-of.*
|
||||
@ -5491,8 +5558,8 @@ F: drivers/net/spider_net*
|
||||
|
||||
SPU FILE SYSTEM
|
||||
M: Jeremy Kerr <jk@ozlabs.org>
|
||||
L: linuxppc-dev@ozlabs.org
|
||||
L: cbe-oss-dev@ozlabs.org
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
L: cbe-oss-dev@lists.ozlabs.org
|
||||
W: http://www.ibm.com/developerworks/power/cell/
|
||||
S: Supported
|
||||
F: Documentation/filesystems/spufs.txt
|
||||
|
||||
8
Makefile
8
Makefile
@ -1,8 +1,8 @@
|
||||
VERSION = 2
|
||||
PATCHLEVEL = 6
|
||||
SUBLEVEL = 36
|
||||
EXTRAVERSION = -rc1
|
||||
NAME = Sheep on Meth
|
||||
EXTRAVERSION =
|
||||
NAME = Flesh-Eating Bats with Fangs
|
||||
|
||||
# *DOCUMENTATION*
|
||||
# To see a list of typical targets execute "make help"
|
||||
@ -1408,8 +1408,8 @@ checkstack:
|
||||
$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
|
||||
$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
|
||||
|
||||
kernelrelease: include/config/kernel.release
|
||||
@echo $(KERNELRELEASE)
|
||||
kernelrelease:
|
||||
@echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
|
||||
|
||||
kernelversion:
|
||||
@echo $(KERNELVERSION)
|
||||
|
||||
@ -32,8 +32,9 @@ config HAVE_OPROFILE
|
||||
|
||||
config KPROBES
|
||||
bool "Kprobes"
|
||||
depends on KALLSYMS && MODULES
|
||||
depends on MODULES
|
||||
depends on HAVE_KPROBES
|
||||
select KALLSYMS
|
||||
help
|
||||
Kprobes allows you to trap at almost any kernel address and
|
||||
execute a callback function. register_kprobe() establishes
|
||||
@ -45,7 +46,6 @@ config OPTPROBES
|
||||
def_bool y
|
||||
depends on KPROBES && HAVE_OPTPROBES
|
||||
depends on !PREEMPT
|
||||
select KALLSYMS_ALL
|
||||
|
||||
config HAVE_EFFICIENT_UNALIGNED_ACCESS
|
||||
bool
|
||||
|
||||
@ -17,7 +17,6 @@
|
||||
# define L1_CACHE_SHIFT 5
|
||||
#endif
|
||||
|
||||
#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
|
||||
#define SMP_CACHE_BYTES L1_CACHE_BYTES
|
||||
|
||||
#endif
|
||||
|
||||
@ -43,6 +43,8 @@ extern void smp_imb(void);
|
||||
/* ??? Ought to use this in arch/alpha/kernel/signal.c too. */
|
||||
|
||||
#ifndef CONFIG_SMP
|
||||
#include <linux/sched.h>
|
||||
|
||||
extern void __load_new_mm_context(struct mm_struct *);
|
||||
static inline void
|
||||
flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
|
||||
|
||||
@ -449,10 +449,13 @@
|
||||
#define __NR_pwritev 491
|
||||
#define __NR_rt_tgsigqueueinfo 492
|
||||
#define __NR_perf_event_open 493
|
||||
#define __NR_fanotify_init 494
|
||||
#define __NR_fanotify_mark 495
|
||||
#define __NR_prlimit64 496
|
||||
|
||||
#ifdef __KERNEL__
|
||||
|
||||
#define NR_SYSCALLS 494
|
||||
#define NR_SYSCALLS 497
|
||||
|
||||
#define __ARCH_WANT_IPC_PARSE_VERSION
|
||||
#define __ARCH_WANT_OLD_READDIR
|
||||
@ -463,6 +466,7 @@
|
||||
#define __ARCH_WANT_SYS_OLD_GETRLIMIT
|
||||
#define __ARCH_WANT_SYS_OLDUMOUNT
|
||||
#define __ARCH_WANT_SYS_SIGPENDING
|
||||
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
|
||||
|
||||
/* "Conditional" syscalls. What we want is
|
||||
|
||||
|
||||
@ -73,8 +73,6 @@
|
||||
ldq $20, HAE_REG($19); \
|
||||
stq $21, HAE_CACHE($19); \
|
||||
stq $21, 0($20); \
|
||||
ldq $0, 0($sp); \
|
||||
ldq $1, 8($sp); \
|
||||
99:; \
|
||||
ldq $19, 72($sp); \
|
||||
ldq $20, 80($sp); \
|
||||
@ -316,19 +314,24 @@ ret_from_sys_call:
|
||||
cmovne $26, 0, $19 /* $19 = 0 => non-restartable */
|
||||
ldq $0, SP_OFF($sp)
|
||||
and $0, 8, $0
|
||||
beq $0, restore_all
|
||||
ret_from_reschedule:
|
||||
beq $0, ret_to_kernel
|
||||
ret_to_user:
|
||||
/* Make sure need_resched and sigpending don't change between
|
||||
sampling and the rti. */
|
||||
lda $16, 7
|
||||
call_pal PAL_swpipl
|
||||
ldl $5, TI_FLAGS($8)
|
||||
and $5, _TIF_WORK_MASK, $2
|
||||
bne $5, work_pending
|
||||
bne $2, work_pending
|
||||
restore_all:
|
||||
RESTORE_ALL
|
||||
call_pal PAL_rti
|
||||
|
||||
ret_to_kernel:
|
||||
lda $16, 7
|
||||
call_pal PAL_swpipl
|
||||
br restore_all
|
||||
|
||||
.align 3
|
||||
$syscall_error:
|
||||
/*
|
||||
@ -363,7 +366,7 @@ $ret_success:
|
||||
* $8: current.
|
||||
* $19: The old syscall number, or zero if this is not a return
|
||||
* from a syscall that errored and is possibly restartable.
|
||||
* $20: Error indication.
|
||||
* $20: The old a3 value
|
||||
*/
|
||||
|
||||
.align 4
|
||||
@ -392,12 +395,18 @@ $work_resched:
|
||||
|
||||
$work_notifysig:
|
||||
mov $sp, $16
|
||||
br $1, do_switch_stack
|
||||
bsr $1, do_switch_stack
|
||||
mov $sp, $17
|
||||
mov $5, $18
|
||||
mov $19, $9 /* save old syscall number */
|
||||
mov $20, $10 /* save old a3 */
|
||||
and $5, _TIF_SIGPENDING, $2
|
||||
cmovne $2, 0, $9 /* we don't want double syscall restarts */
|
||||
jsr $26, do_notify_resume
|
||||
mov $9, $19
|
||||
mov $10, $20
|
||||
bsr $1, undo_switch_stack
|
||||
br restore_all
|
||||
br ret_to_user
|
||||
.end work_pending
|
||||
|
||||
/*
|
||||
@ -430,6 +439,7 @@ strace:
|
||||
beq $1, 1f
|
||||
ldq $27, 0($2)
|
||||
1: jsr $26, ($27), sys_gettimeofday
|
||||
ret_from_straced:
|
||||
ldgp $gp, 0($26)
|
||||
|
||||
/* check return.. */
|
||||
@ -650,7 +660,7 @@ kernel_thread:
|
||||
/* We don't actually care for a3 success widgetry in the kernel.
|
||||
Not for positive errno values. */
|
||||
stq $0, 0($sp) /* $0 */
|
||||
br restore_all
|
||||
br ret_to_kernel
|
||||
.end kernel_thread
|
||||
|
||||
/*
|
||||
@ -757,11 +767,15 @@ sys_vfork:
|
||||
.ent sys_sigreturn
|
||||
sys_sigreturn:
|
||||
.prologue 0
|
||||
lda $9, ret_from_straced
|
||||
cmpult $26, $9, $9
|
||||
mov $sp, $17
|
||||
lda $18, -SWITCH_STACK_SIZE($sp)
|
||||
lda $sp, -SWITCH_STACK_SIZE($sp)
|
||||
jsr $26, do_sigreturn
|
||||
br $1, undo_switch_stack
|
||||
bne $9, 1f
|
||||
jsr $26, syscall_trace
|
||||
1: br $1, undo_switch_stack
|
||||
br ret_from_sys_call
|
||||
.end sys_sigreturn
|
||||
|
||||
@ -770,46 +784,18 @@ sys_sigreturn:
|
||||
.ent sys_rt_sigreturn
|
||||
sys_rt_sigreturn:
|
||||
.prologue 0
|
||||
lda $9, ret_from_straced
|
||||
cmpult $26, $9, $9
|
||||
mov $sp, $17
|
||||
lda $18, -SWITCH_STACK_SIZE($sp)
|
||||
lda $sp, -SWITCH_STACK_SIZE($sp)
|
||||
jsr $26, do_rt_sigreturn
|
||||
br $1, undo_switch_stack
|
||||
bne $9, 1f
|
||||
jsr $26, syscall_trace
|
||||
1: br $1, undo_switch_stack
|
||||
br ret_from_sys_call
|
||||
.end sys_rt_sigreturn
|
||||
|
||||
.align 4
|
||||
.globl sys_sigsuspend
|
||||
.ent sys_sigsuspend
|
||||
sys_sigsuspend:
|
||||
.prologue 0
|
||||
mov $sp, $17
|
||||
br $1, do_switch_stack
|
||||
mov $sp, $18
|
||||
subq $sp, 16, $sp
|
||||
stq $26, 0($sp)
|
||||
jsr $26, do_sigsuspend
|
||||
ldq $26, 0($sp)
|
||||
lda $sp, SWITCH_STACK_SIZE+16($sp)
|
||||
ret
|
||||
.end sys_sigsuspend
|
||||
|
||||
.align 4
|
||||
.globl sys_rt_sigsuspend
|
||||
.ent sys_rt_sigsuspend
|
||||
sys_rt_sigsuspend:
|
||||
.prologue 0
|
||||
mov $sp, $18
|
||||
br $1, do_switch_stack
|
||||
mov $sp, $19
|
||||
subq $sp, 16, $sp
|
||||
stq $26, 0($sp)
|
||||
jsr $26, do_rt_sigsuspend
|
||||
ldq $26, 0($sp)
|
||||
lda $sp, SWITCH_STACK_SIZE+16($sp)
|
||||
ret
|
||||
.end sys_rt_sigsuspend
|
||||
|
||||
.align 4
|
||||
.globl sys_sethae
|
||||
.ent sys_sethae
|
||||
@ -928,15 +914,6 @@ sys_execve:
|
||||
jmp $31, do_sys_execve
|
||||
.end sys_execve
|
||||
|
||||
.align 4
|
||||
.globl osf_sigprocmask
|
||||
.ent osf_sigprocmask
|
||||
osf_sigprocmask:
|
||||
.prologue 0
|
||||
mov $sp, $18
|
||||
jmp $31, sys_osf_sigprocmask
|
||||
.end osf_sigprocmask
|
||||
|
||||
.align 4
|
||||
.globl alpha_ni_syscall
|
||||
.ent alpha_ni_syscall
|
||||
|
||||
@ -90,11 +90,13 @@ static int
|
||||
ev6_parse_cbox(u64 c_addr, u64 c1_syn, u64 c2_syn,
|
||||
u64 c_stat, u64 c_sts, int print)
|
||||
{
|
||||
char *sourcename[] = { "UNKNOWN", "UNKNOWN", "UNKNOWN",
|
||||
"MEMORY", "BCACHE", "DCACHE",
|
||||
"BCACHE PROBE", "BCACHE PROBE" };
|
||||
char *streamname[] = { "D", "I" };
|
||||
char *bitsname[] = { "SINGLE", "DOUBLE" };
|
||||
static const char * const sourcename[] = {
|
||||
"UNKNOWN", "UNKNOWN", "UNKNOWN",
|
||||
"MEMORY", "BCACHE", "DCACHE",
|
||||
"BCACHE PROBE", "BCACHE PROBE"
|
||||
};
|
||||
static const char * const streamname[] = { "D", "I" };
|
||||
static const char * const bitsname[] = { "SINGLE", "DOUBLE" };
|
||||
int status = MCHK_DISPOSITION_REPORT;
|
||||
int source = -1, stream = -1, bits = -1;
|
||||
|
||||
|
||||
@ -109,7 +109,7 @@ marvel_print_err_cyc(u64 err_cyc)
|
||||
#define IO7__ERR_CYC__CYCLE__M (0x7)
|
||||
|
||||
printk("%s Packet In Error: %s\n"
|
||||
"%s Error in %s, cycle %ld%s%s\n",
|
||||
"%s Error in %s, cycle %lld%s%s\n",
|
||||
err_print_prefix,
|
||||
packet_desc[EXTRACT(err_cyc, IO7__ERR_CYC__PACKET)],
|
||||
err_print_prefix,
|
||||
@ -313,7 +313,7 @@ marvel_print_po7_ugbge_sym(u64 ugbge_sym)
|
||||
}
|
||||
|
||||
printk("%s Up Hose Garbage Symptom:\n"
|
||||
"%s Source Port: %ld - Dest PID: %ld - OpCode: %s\n",
|
||||
"%s Source Port: %lld - Dest PID: %lld - OpCode: %s\n",
|
||||
err_print_prefix,
|
||||
err_print_prefix,
|
||||
EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_SRC_PORT),
|
||||
@ -552,7 +552,7 @@ marvel_print_pox_spl_cmplt(u64 spl_cmplt)
|
||||
#define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__M (0xfff)
|
||||
|
||||
printk("%s Split Completion Error:\n"
|
||||
"%s Source (Bus:Dev:Func): %ld:%ld:%ld\n",
|
||||
"%s Source (Bus:Dev:Func): %lld:%lld:%lld\n",
|
||||
err_print_prefix,
|
||||
err_print_prefix,
|
||||
EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_BUS),
|
||||
@ -589,22 +589,23 @@ marvel_print_pox_spl_cmplt(u64 spl_cmplt)
|
||||
static void
|
||||
marvel_print_pox_trans_sum(u64 trans_sum)
|
||||
{
|
||||
char *pcix_cmd[] = { "Interrupt Acknowledge",
|
||||
"Special Cycle",
|
||||
"I/O Read",
|
||||
"I/O Write",
|
||||
"Reserved",
|
||||
"Reserved / Device ID Message",
|
||||
"Memory Read",
|
||||
"Memory Write",
|
||||
"Reserved / Alias to Memory Read Block",
|
||||
"Reserved / Alias to Memory Write Block",
|
||||
"Configuration Read",
|
||||
"Configuration Write",
|
||||
"Memory Read Multiple / Split Completion",
|
||||
"Dual Address Cycle",
|
||||
"Memory Read Line / Memory Read Block",
|
||||
"Memory Write and Invalidate / Memory Write Block"
|
||||
static const char * const pcix_cmd[] = {
|
||||
"Interrupt Acknowledge",
|
||||
"Special Cycle",
|
||||
"I/O Read",
|
||||
"I/O Write",
|
||||
"Reserved",
|
||||
"Reserved / Device ID Message",
|
||||
"Memory Read",
|
||||
"Memory Write",
|
||||
"Reserved / Alias to Memory Read Block",
|
||||
"Reserved / Alias to Memory Write Block",
|
||||
"Configuration Read",
|
||||
"Configuration Write",
|
||||
"Memory Read Multiple / Split Completion",
|
||||
"Dual Address Cycle",
|
||||
"Memory Read Line / Memory Read Block",
|
||||
"Memory Write and Invalidate / Memory Write Block"
|
||||
};
|
||||
|
||||
#define IO7__POX_TRANSUM__PCI_ADDR__S (0)
|
||||
|
||||
@ -75,8 +75,12 @@ titan_parse_p_serror(int which, u64 serror, int print)
|
||||
int status = MCHK_DISPOSITION_REPORT;
|
||||
|
||||
#ifdef CONFIG_VERBOSE_MCHECK
|
||||
char *serror_src[] = {"GPCI", "APCI", "AGP HP", "AGP LP"};
|
||||
char *serror_cmd[] = {"DMA Read", "DMA RMW", "SGTE Read", "Reserved"};
|
||||
static const char * const serror_src[] = {
|
||||
"GPCI", "APCI", "AGP HP", "AGP LP"
|
||||
};
|
||||
static const char * const serror_cmd[] = {
|
||||
"DMA Read", "DMA RMW", "SGTE Read", "Reserved"
|
||||
};
|
||||
#endif /* CONFIG_VERBOSE_MCHECK */
|
||||
|
||||
#define TITAN__PCHIP_SERROR__LOST_UECC (1UL << 0)
|
||||
@ -140,14 +144,15 @@ titan_parse_p_perror(int which, int port, u64 perror, int print)
|
||||
int status = MCHK_DISPOSITION_REPORT;
|
||||
|
||||
#ifdef CONFIG_VERBOSE_MCHECK
|
||||
char *perror_cmd[] = { "Interrupt Acknowledge", "Special Cycle",
|
||||
"I/O Read", "I/O Write",
|
||||
"Reserved", "Reserved",
|
||||
"Memory Read", "Memory Write",
|
||||
"Reserved", "Reserved",
|
||||
"Configuration Read", "Configuration Write",
|
||||
"Memory Read Multiple", "Dual Address Cycle",
|
||||
"Memory Read Line","Memory Write and Invalidate"
|
||||
static const char * const perror_cmd[] = {
|
||||
"Interrupt Acknowledge", "Special Cycle",
|
||||
"I/O Read", "I/O Write",
|
||||
"Reserved", "Reserved",
|
||||
"Memory Read", "Memory Write",
|
||||
"Reserved", "Reserved",
|
||||
"Configuration Read", "Configuration Write",
|
||||
"Memory Read Multiple", "Dual Address Cycle",
|
||||
"Memory Read Line", "Memory Write and Invalidate"
|
||||
};
|
||||
#endif /* CONFIG_VERBOSE_MCHECK */
|
||||
|
||||
@ -273,11 +278,11 @@ titan_parse_p_agperror(int which, u64 agperror, int print)
|
||||
int cmd, len;
|
||||
unsigned long addr;
|
||||
|
||||
char *agperror_cmd[] = { "Read (low-priority)", "Read (high-priority)",
|
||||
"Write (low-priority)",
|
||||
"Write (high-priority)",
|
||||
"Reserved", "Reserved",
|
||||
"Flush", "Fence"
|
||||
static const char * const agperror_cmd[] = {
|
||||
"Read (low-priority)", "Read (high-priority)",
|
||||
"Write (low-priority)", "Write (high-priority)",
|
||||
"Reserved", "Reserved",
|
||||
"Flush", "Fence"
|
||||
};
|
||||
#endif /* CONFIG_VERBOSE_MCHECK */
|
||||
|
||||
|
||||
@ -15,7 +15,6 @@
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/smp.h>
|
||||
#include <linux/smp_lock.h>
|
||||
#include <linux/stddef.h>
|
||||
#include <linux/syscalls.h>
|
||||
#include <linux/unistd.h>
|
||||
@ -69,7 +68,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
|
||||
{
|
||||
struct mm_struct *mm;
|
||||
|
||||
lock_kernel();
|
||||
mm = current->mm;
|
||||
mm->end_code = bss_start + bss_len;
|
||||
mm->start_brk = bss_start + bss_len;
|
||||
@ -78,7 +76,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
|
||||
printk("set_program_attributes(%lx %lx %lx %lx)\n",
|
||||
text_start, text_len, bss_start, bss_len);
|
||||
#endif
|
||||
unlock_kernel();
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -252,7 +249,7 @@ SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname,
|
||||
|
||||
retval = user_path(pathname, &path);
|
||||
if (!retval) {
|
||||
retval = do_osf_statfs(&path buffer, bufsiz);
|
||||
retval = do_osf_statfs(&path, buffer, bufsiz);
|
||||
path_put(&path);
|
||||
}
|
||||
return retval;
|
||||
@ -517,7 +514,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
|
||||
long error;
|
||||
int __user *min_buf_size_ptr;
|
||||
|
||||
lock_kernel();
|
||||
switch (code) {
|
||||
case PL_SET:
|
||||
if (get_user(error, &args->set.nbytes))
|
||||
@ -547,7 +543,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
|
||||
error = -EOPNOTSUPP;
|
||||
break;
|
||||
};
|
||||
unlock_kernel();
|
||||
return error;
|
||||
}
|
||||
|
||||
@ -594,7 +589,7 @@ SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss,
|
||||
|
||||
SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
|
||||
{
|
||||
char *sysinfo_table[] = {
|
||||
const char *sysinfo_table[] = {
|
||||
utsname()->sysname,
|
||||
utsname()->nodename,
|
||||
utsname()->release,
|
||||
@ -606,7 +601,7 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
|
||||
"dummy", /* secure RPC domain */
|
||||
};
|
||||
unsigned long offset;
|
||||
char *res;
|
||||
const char *res;
|
||||
long len, err = -EINVAL;
|
||||
|
||||
offset = command-1;
|
||||
|
||||
@ -66,7 +66,7 @@ static int pci_mmap_resource(struct kobject *kobj,
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(container_of(kobj,
|
||||
struct device, kobj));
|
||||
struct resource *res = (struct resource *)attr->private;
|
||||
struct resource *res = attr->private;
|
||||
enum pci_mmap_state mmap_type;
|
||||
struct pci_bus_region bar;
|
||||
int i;
|
||||
|
||||
@ -241,20 +241,20 @@ static inline unsigned long alpha_read_pmc(int idx)
|
||||
static int alpha_perf_event_set_period(struct perf_event *event,
|
||||
struct hw_perf_event *hwc, int idx)
|
||||
{
|
||||
long left = atomic64_read(&hwc->period_left);
|
||||
long left = local64_read(&hwc->period_left);
|
||||
long period = hwc->sample_period;
|
||||
int ret = 0;
|
||||
|
||||
if (unlikely(left <= -period)) {
|
||||
left = period;
|
||||
atomic64_set(&hwc->period_left, left);
|
||||
local64_set(&hwc->period_left, left);
|
||||
hwc->last_period = period;
|
||||
ret = 1;
|
||||
}
|
||||
|
||||
if (unlikely(left <= 0)) {
|
||||
left += period;
|
||||
atomic64_set(&hwc->period_left, left);
|
||||
local64_set(&hwc->period_left, left);
|
||||
hwc->last_period = period;
|
||||
ret = 1;
|
||||
}
|
||||
@ -269,7 +269,7 @@ static int alpha_perf_event_set_period(struct perf_event *event,
|
||||
if (left > (long)alpha_pmu->pmc_max_period[idx])
|
||||
left = alpha_pmu->pmc_max_period[idx];
|
||||
|
||||
atomic64_set(&hwc->prev_count, (unsigned long)(-left));
|
||||
local64_set(&hwc->prev_count, (unsigned long)(-left));
|
||||
|
||||
alpha_write_pmc(idx, (unsigned long)(-left));
|
||||
|
||||
@ -300,10 +300,10 @@ static unsigned long alpha_perf_event_update(struct perf_event *event,
|
||||
long delta;
|
||||
|
||||
again:
|
||||
prev_raw_count = atomic64_read(&hwc->prev_count);
|
||||
prev_raw_count = local64_read(&hwc->prev_count);
|
||||
new_raw_count = alpha_read_pmc(idx);
|
||||
|
||||
if (atomic64_cmpxchg(&hwc->prev_count, prev_raw_count,
|
||||
if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
|
||||
new_raw_count) != prev_raw_count)
|
||||
goto again;
|
||||
|
||||
@ -316,8 +316,8 @@ again:
|
||||
delta += alpha_pmu->pmc_max_period[idx] + 1;
|
||||
}
|
||||
|
||||
atomic64_add(delta, &event->count);
|
||||
atomic64_sub(delta, &hwc->period_left);
|
||||
local64_add(delta, &event->count);
|
||||
local64_sub(delta, &hwc->period_left);
|
||||
|
||||
return new_raw_count;
|
||||
}
|
||||
@ -636,7 +636,7 @@ static int __hw_perf_event_init(struct perf_event *event)
|
||||
if (!hwc->sample_period) {
|
||||
hwc->sample_period = alpha_pmu->pmc_max_period[0];
|
||||
hwc->last_period = hwc->sample_period;
|
||||
atomic64_set(&hwc->period_left, hwc->sample_period);
|
||||
local64_set(&hwc->period_left, hwc->sample_period);
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
@ -356,7 +356,7 @@ dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
|
||||
dest[27] = pt->r27;
|
||||
dest[28] = pt->r28;
|
||||
dest[29] = pt->gp;
|
||||
dest[30] = rdusp();
|
||||
dest[30] = ti == current_thread_info() ? rdusp() : ti->pcb.usp;
|
||||
dest[31] = pt->pc;
|
||||
|
||||
/* Once upon a time this was the PS value. Which is stupid
|
||||
@ -387,8 +387,9 @@ EXPORT_SYMBOL(dump_elf_task_fp);
|
||||
* sys_execve() executes a new program.
|
||||
*/
|
||||
asmlinkage int
|
||||
do_sys_execve(const char __user *ufilename, char __user * __user *argv,
|
||||
char __user * __user *envp, struct pt_regs *regs)
|
||||
do_sys_execve(const char __user *ufilename,
|
||||
const char __user *const __user *argv,
|
||||
const char __user *const __user *envp, struct pt_regs *regs)
|
||||
{
|
||||
int error;
|
||||
char *filename;
|
||||
|
||||
@ -156,9 +156,6 @@ extern void SMC669_Init(int);
|
||||
/* es1888.c */
|
||||
extern void es1888_init(void);
|
||||
|
||||
/* ns87312.c */
|
||||
extern void ns87312_enable_ide(long ide_base);
|
||||
|
||||
/* ../lib/fpreg.c */
|
||||
extern void alpha_write_fp_reg (unsigned long reg, unsigned long val);
|
||||
extern unsigned long alpha_read_fp_reg (unsigned long reg);
|
||||
|
||||
@ -41,46 +41,20 @@ static void do_signal(struct pt_regs *, struct switch_stack *,
|
||||
/*
|
||||
* The OSF/1 sigprocmask calling sequence is different from the
|
||||
* C sigprocmask() sequence..
|
||||
*
|
||||
* how:
|
||||
* 1 - SIG_BLOCK
|
||||
* 2 - SIG_UNBLOCK
|
||||
* 3 - SIG_SETMASK
|
||||
*
|
||||
* We change the range to -1 .. 1 in order to let gcc easily
|
||||
* use the conditional move instructions.
|
||||
*
|
||||
* Note that we don't need to acquire the kernel lock for SMP
|
||||
* operation, as all of this is local to this thread.
|
||||
*/
|
||||
SYSCALL_DEFINE3(osf_sigprocmask, int, how, unsigned long, newmask,
|
||||
struct pt_regs *, regs)
|
||||
SYSCALL_DEFINE2(osf_sigprocmask, int, how, unsigned long, newmask)
|
||||
{
|
||||
unsigned long oldmask = -EINVAL;
|
||||
sigset_t oldmask;
|
||||
sigset_t mask;
|
||||
unsigned long res;
|
||||
|
||||
if ((unsigned long)how-1 <= 2) {
|
||||
long sign = how-2; /* -1 .. 1 */
|
||||
unsigned long block, unblock;
|
||||
|
||||
newmask &= _BLOCKABLE;
|
||||
spin_lock_irq(¤t->sighand->siglock);
|
||||
oldmask = current->blocked.sig[0];
|
||||
|
||||
unblock = oldmask & ~newmask;
|
||||
block = oldmask | newmask;
|
||||
if (!sign)
|
||||
block = unblock;
|
||||
if (sign <= 0)
|
||||
newmask = block;
|
||||
if (_NSIG_WORDS > 1 && sign > 0)
|
||||
sigemptyset(¤t->blocked);
|
||||
current->blocked.sig[0] = newmask;
|
||||
recalc_sigpending();
|
||||
spin_unlock_irq(¤t->sighand->siglock);
|
||||
|
||||
regs->r0 = 0; /* special no error return */
|
||||
siginitset(&mask, newmask & _BLOCKABLE);
|
||||
res = sigprocmask(how, &mask, &oldmask);
|
||||
if (!res) {
|
||||
force_successful_syscall_return();
|
||||
res = oldmask.sig[0];
|
||||
}
|
||||
return oldmask;
|
||||
return res;
|
||||
}
|
||||
|
||||
SYSCALL_DEFINE3(osf_sigaction, int, sig,
|
||||
@ -94,9 +68,9 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig,
|
||||
old_sigset_t mask;
|
||||
if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
|
||||
__get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
|
||||
__get_user(new_ka.sa.sa_flags, &act->sa_flags))
|
||||
__get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
|
||||
__get_user(mask, &act->sa_mask))
|
||||
return -EFAULT;
|
||||
__get_user(mask, &act->sa_mask);
|
||||
siginitset(&new_ka.sa.sa_mask, mask);
|
||||
new_ka.ka_restorer = NULL;
|
||||
}
|
||||
@ -106,9 +80,9 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig,
|
||||
if (!ret && oact) {
|
||||
if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
|
||||
__put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
|
||||
__put_user(old_ka.sa.sa_flags, &oact->sa_flags))
|
||||
__put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
|
||||
__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
|
||||
return -EFAULT;
|
||||
__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
|
||||
}
|
||||
|
||||
return ret;
|
||||
@ -144,8 +118,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
|
||||
/*
|
||||
* Atomically swap in the new signal mask, and wait for a signal.
|
||||
*/
|
||||
asmlinkage int
|
||||
do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
|
||||
SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)
|
||||
{
|
||||
mask &= _BLOCKABLE;
|
||||
spin_lock_irq(¤t->sighand->siglock);
|
||||
@ -154,41 +127,6 @@ do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
|
||||
recalc_sigpending();
|
||||
spin_unlock_irq(¤t->sighand->siglock);
|
||||
|
||||
/* Indicate EINTR on return from any possible signal handler,
|
||||
which will not come back through here, but via sigreturn. */
|
||||
regs->r0 = EINTR;
|
||||
regs->r19 = 1;
|
||||
|
||||
current->state = TASK_INTERRUPTIBLE;
|
||||
schedule();
|
||||
set_thread_flag(TIF_RESTORE_SIGMASK);
|
||||
return -ERESTARTNOHAND;
|
||||
}
|
||||
|
||||
asmlinkage int
|
||||
do_rt_sigsuspend(sigset_t __user *uset, size_t sigsetsize,
|
||||
struct pt_regs *regs, struct switch_stack *sw)
|
||||
{
|
||||
sigset_t set;
|
||||
|
||||
/* XXX: Don't preclude handling different sized sigset_t's. */
|
||||
if (sigsetsize != sizeof(sigset_t))
|
||||
return -EINVAL;
|
||||
if (copy_from_user(&set, uset, sizeof(set)))
|
||||
return -EFAULT;
|
||||
|
||||
sigdelsetmask(&set, ~_BLOCKABLE);
|
||||
spin_lock_irq(¤t->sighand->siglock);
|
||||
current->saved_sigmask = current->blocked;
|
||||
current->blocked = set;
|
||||
recalc_sigpending();
|
||||
spin_unlock_irq(¤t->sighand->siglock);
|
||||
|
||||
/* Indicate EINTR on return from any possible signal handler,
|
||||
which will not come back through here, but via sigreturn. */
|
||||
regs->r0 = EINTR;
|
||||
regs->r19 = 1;
|
||||
|
||||
current->state = TASK_INTERRUPTIBLE;
|
||||
schedule();
|
||||
set_thread_flag(TIF_RESTORE_SIGMASK);
|
||||
@ -239,6 +177,8 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
|
||||
unsigned long usp;
|
||||
long i, err = __get_user(regs->pc, &sc->sc_pc);
|
||||
|
||||
current_thread_info()->restart_block.fn = do_no_restart_syscall;
|
||||
|
||||
sw->r26 = (unsigned long) ret_from_sys_call;
|
||||
|
||||
err |= __get_user(regs->r0, sc->sc_regs+0);
|
||||
@ -591,7 +531,6 @@ syscall_restart(unsigned long r0, unsigned long r19,
|
||||
regs->pc -= 4;
|
||||
break;
|
||||
case ERESTART_RESTARTBLOCK:
|
||||
current_thread_info()->restart_block.fn = do_no_restart_syscall;
|
||||
regs->r0 = EINTR;
|
||||
break;
|
||||
}
|
||||
|
||||
@ -87,7 +87,7 @@ static int srm_env_proc_show(struct seq_file *m, void *v)
|
||||
srm_env_t *entry;
|
||||
char *page;
|
||||
|
||||
entry = (srm_env_t *)m->private;
|
||||
entry = m->private;
|
||||
page = (char *)__get_free_page(GFP_USER);
|
||||
if (!page)
|
||||
return -ENOMEM;
|
||||
|
||||
@ -33,7 +33,7 @@
|
||||
#include "irq_impl.h"
|
||||
#include "pci_impl.h"
|
||||
#include "machvec_impl.h"
|
||||
|
||||
#include "pc873xx.h"
|
||||
|
||||
/* Note mask bit is true for DISABLED irqs. */
|
||||
static unsigned long cached_irq_mask = ~0UL;
|
||||
@ -235,18 +235,31 @@ cabriolet_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
|
||||
return COMMON_TABLE_LOOKUP;
|
||||
}
|
||||
|
||||
static inline void __init
|
||||
cabriolet_enable_ide(void)
|
||||
{
|
||||
if (pc873xx_probe() == -1) {
|
||||
printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n");
|
||||
} else {
|
||||
printk(KERN_INFO "Found %s Super IO chip at 0x%x\n",
|
||||
pc873xx_get_model(), pc873xx_get_base());
|
||||
|
||||
pc873xx_enable_ide();
|
||||
}
|
||||
}
|
||||
|
||||
static inline void __init
|
||||
cabriolet_init_pci(void)
|
||||
{
|
||||
common_init_pci();
|
||||
ns87312_enable_ide(0x398);
|
||||
cabriolet_enable_ide();
|
||||
}
|
||||
|
||||
static inline void __init
|
||||
cia_cab_init_pci(void)
|
||||
{
|
||||
cia_init_pci();
|
||||
ns87312_enable_ide(0x398);
|
||||
cabriolet_enable_ide();
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
#include "irq_impl.h"
|
||||
#include "pci_impl.h"
|
||||
#include "machvec_impl.h"
|
||||
|
||||
#include "pc873xx.h"
|
||||
|
||||
/* Note mask bit is true for DISABLED irqs. */
|
||||
static unsigned long cached_irq_mask[2] = { -1, -1 };
|
||||
@ -264,7 +264,14 @@ takara_init_pci(void)
|
||||
alpha_mv.pci_map_irq = takara_map_irq_srm;
|
||||
|
||||
cia_init_pci();
|
||||
ns87312_enable_ide(0x26e);
|
||||
|
||||
if (pc873xx_probe() == -1) {
|
||||
printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n");
|
||||
} else {
|
||||
printk(KERN_INFO "Found %s Super IO chip at 0x%x\n",
|
||||
pc873xx_get_model(), pc873xx_get_base());
|
||||
pc873xx_enable_ide();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -58,7 +58,7 @@ sys_call_table:
|
||||
.quad sys_open /* 45 */
|
||||
.quad alpha_ni_syscall
|
||||
.quad sys_getxgid
|
||||
.quad osf_sigprocmask
|
||||
.quad sys_osf_sigprocmask
|
||||
.quad alpha_ni_syscall
|
||||
.quad alpha_ni_syscall /* 50 */
|
||||
.quad sys_acct
|
||||
@ -512,6 +512,9 @@ sys_call_table:
|
||||
.quad sys_pwritev
|
||||
.quad sys_rt_tgsigqueueinfo
|
||||
.quad sys_perf_event_open
|
||||
.quad sys_fanotify_init
|
||||
.quad sys_fanotify_mark /* 495 */
|
||||
.quad sys_prlimit64
|
||||
|
||||
.size sys_call_table, . - sys_call_table
|
||||
.type sys_call_table, @object
|
||||
|
||||
@ -191,16 +191,16 @@ irqreturn_t timer_interrupt(int irq, void *dev)
|
||||
|
||||
write_sequnlock(&xtime_lock);
|
||||
|
||||
#ifndef CONFIG_SMP
|
||||
while (nticks--)
|
||||
update_process_times(user_mode(get_irq_regs()));
|
||||
#endif
|
||||
|
||||
if (test_perf_event_pending()) {
|
||||
clear_perf_event_pending();
|
||||
perf_event_do_pending();
|
||||
}
|
||||
|
||||
#ifndef CONFIG_SMP
|
||||
while (nticks--)
|
||||
update_process_times(user_mode(get_irq_regs()));
|
||||
#endif
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
|
||||
@ -13,7 +13,6 @@
|
||||
#include <linux/sched.h>
|
||||
#include <linux/tty.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/smp_lock.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kallsyms.h>
|
||||
@ -623,7 +622,6 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
|
||||
return;
|
||||
}
|
||||
|
||||
lock_kernel();
|
||||
printk("Bad unaligned kernel access at %016lx: %p %lx %lu\n",
|
||||
pc, va, opcode, reg);
|
||||
do_exit(SIGSEGV);
|
||||
@ -646,7 +644,6 @@ got_exception:
|
||||
* Yikes! No one to forward the exception to.
|
||||
* Since the registers are in a weird format, dump them ourselves.
|
||||
*/
|
||||
lock_kernel();
|
||||
|
||||
printk("%s(%d): unhandled unaligned exception\n",
|
||||
current->comm, task_pid_nr(current));
|
||||
|
||||
130
arch/arm/Kconfig
130
arch/arm/Kconfig
@ -271,7 +271,6 @@ config ARCH_AT91
|
||||
bool "Atmel AT91"
|
||||
select ARCH_REQUIRE_GPIOLIB
|
||||
select HAVE_CLK
|
||||
select ARCH_USES_GETTIMEOFFSET
|
||||
help
|
||||
This enables support for systems based on the Atmel AT91RM9200,
|
||||
AT91SAM9 and AT91CAP9 processors.
|
||||
@ -1051,6 +1050,32 @@ config ARM_ERRATA_460075
|
||||
ACTLR register. Note that setting specific bits in the ACTLR register
|
||||
may not be available in non-secure mode.
|
||||
|
||||
config ARM_ERRATA_742230
|
||||
bool "ARM errata: DMB operation may be faulty"
|
||||
depends on CPU_V7 && SMP
|
||||
help
|
||||
This option enables the workaround for the 742230 Cortex-A9
|
||||
(r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
|
||||
between two write operations may not ensure the correct visibility
|
||||
ordering of the two writes. This workaround sets a specific bit in
|
||||
the diagnostic register of the Cortex-A9 which causes the DMB
|
||||
instruction to behave as a DSB, ensuring the correct behaviour of
|
||||
the two writes.
|
||||
|
||||
config ARM_ERRATA_742231
|
||||
bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
|
||||
depends on CPU_V7 && SMP
|
||||
help
|
||||
This option enables the workaround for the 742231 Cortex-A9
|
||||
(r2p0..r2p2) erratum. Under certain conditions, specific to the
|
||||
Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
|
||||
accessing some data located in the same cache line, may get corrupted
|
||||
data due to bad handling of the address hazard when the line gets
|
||||
replaced from one of the CPUs at the same time as another CPU is
|
||||
accessing it. This workaround sets specific bits in the diagnostic
|
||||
register of the Cortex-A9 which reduces the linefill issuing
|
||||
capabilities of the processor.
|
||||
|
||||
config PL310_ERRATA_588369
|
||||
bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
|
||||
depends on CACHE_L2X0 && ARCH_OMAP4
|
||||
@ -1076,6 +1101,20 @@ config ARM_ERRATA_720789
|
||||
invalidated are not, resulting in an incoherency in the system page
|
||||
tables. The workaround changes the TLB flushing routines to invalidate
|
||||
entries regardless of the ASID.
|
||||
|
||||
config ARM_ERRATA_743622
|
||||
bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
|
||||
depends on CPU_V7
|
||||
help
|
||||
This option enables the workaround for the 743622 Cortex-A9
|
||||
(r2p0..r2p2) erratum. Under very rare conditions, a faulty
|
||||
optimisation in the Cortex-A9 Store Buffer may lead to data
|
||||
corruption. This workaround sets a specific bit in the diagnostic
|
||||
register of the Cortex-A9 which disables the Store Buffer
|
||||
optimisation, preventing the defect from occurring. This has no
|
||||
visible impact on the overall performance or power consumption of the
|
||||
processor.
|
||||
|
||||
endmenu
|
||||
|
||||
source "arch/arm/common/Kconfig"
|
||||
@ -1576,95 +1615,6 @@ config AUTO_ZRELADDR
|
||||
0xf8000000. This assumes the zImage being placed in the first 128MB
|
||||
from start of memory.
|
||||
|
||||
config ZRELADDR
|
||||
hex "Physical address of the decompressed kernel image"
|
||||
depends on !AUTO_ZRELADDR
|
||||
default 0x00008000 if ARCH_BCMRING ||\
|
||||
ARCH_CNS3XXX ||\
|
||||
ARCH_DOVE ||\
|
||||
ARCH_EBSA110 ||\
|
||||
ARCH_FOOTBRIDGE ||\
|
||||
ARCH_INTEGRATOR ||\
|
||||
ARCH_IOP13XX ||\
|
||||
ARCH_IOP33X ||\
|
||||
ARCH_IXP2000 ||\
|
||||
ARCH_IXP23XX ||\
|
||||
ARCH_IXP4XX ||\
|
||||
ARCH_KIRKWOOD ||\
|
||||
ARCH_KS8695 ||\
|
||||
ARCH_LOKI ||\
|
||||
ARCH_MMP ||\
|
||||
ARCH_MV78XX0 ||\
|
||||
ARCH_NOMADIK ||\
|
||||
ARCH_NUC93X ||\
|
||||
ARCH_NS9XXX ||\
|
||||
ARCH_ORION5X ||\
|
||||
ARCH_SPEAR3XX ||\
|
||||
ARCH_SPEAR6XX ||\
|
||||
ARCH_U8500 ||\
|
||||
ARCH_VERSATILE ||\
|
||||
ARCH_W90X900
|
||||
default 0x08008000 if ARCH_MX1 ||\
|
||||
ARCH_SHARK
|
||||
default 0x10008000 if ARCH_MSM ||\
|
||||
ARCH_OMAP1 ||\
|
||||
ARCH_RPC
|
||||
default 0x20008000 if ARCH_S5P6440 ||\
|
||||
ARCH_S5P6442 ||\
|
||||
ARCH_S5PC100 ||\
|
||||
ARCH_S5PV210
|
||||
default 0x30008000 if ARCH_S3C2410 ||\
|
||||
ARCH_S3C2400 ||\
|
||||
ARCH_S3C2412 ||\
|
||||
ARCH_S3C2416 ||\
|
||||
ARCH_S3C2440 ||\
|
||||
ARCH_S3C2443
|
||||
default 0x40008000 if ARCH_STMP378X ||\
|
||||
ARCH_STMP37XX ||\
|
||||
ARCH_SH7372 ||\
|
||||
ARCH_SH7377
|
||||
default 0x50008000 if ARCH_S3C64XX ||\
|
||||
ARCH_SH7367
|
||||
default 0x60008000 if ARCH_VEXPRESS
|
||||
default 0x80008000 if ARCH_MX25 ||\
|
||||
ARCH_MX3 ||\
|
||||
ARCH_NETX ||\
|
||||
ARCH_OMAP2PLUS ||\
|
||||
ARCH_PNX4008
|
||||
default 0x90008000 if ARCH_MX5 ||\
|
||||
ARCH_MX91231
|
||||
default 0xa0008000 if ARCH_IOP32X ||\
|
||||
ARCH_PXA ||\
|
||||
MACH_MX27
|
||||
default 0xc0008000 if ARCH_LH7A40X ||\
|
||||
MACH_MX21
|
||||
default 0xf0008000 if ARCH_AAEC2000 ||\
|
||||
ARCH_L7200
|
||||
default 0xc0028000 if ARCH_CLPS711X
|
||||
default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
|
||||
default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
|
||||
default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX
|
||||
default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX
|
||||
default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET
|
||||
default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET
|
||||
default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET
|
||||
default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET
|
||||
default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET
|
||||
default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP
|
||||
default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP
|
||||
default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET
|
||||
default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET
|
||||
default 0xc0208000 if ARCH_SA1100 && SA1111
|
||||
default 0xc0008000 if ARCH_SA1100 && !SA1111
|
||||
default 0x30108000 if ARCH_S3C2410 && PM_H1940
|
||||
default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM
|
||||
default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM
|
||||
help
|
||||
ZRELADDR is the physical address where the decompressed kernel
|
||||
image will be placed. ZRELADDR has to be specified when the
|
||||
assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is
|
||||
selected.
|
||||
|
||||
endmenu
|
||||
|
||||
menu "CPU Power Management"
|
||||
|
||||
@ -21,6 +21,9 @@ GZFLAGS :=-9
|
||||
# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
|
||||
KBUILD_CFLAGS +=$(call cc-option,-marm,)
|
||||
|
||||
# Never generate .eh_frame
|
||||
KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
|
||||
|
||||
# Do not use arch/arm/defconfig - it's always outdated.
|
||||
# Select a platform tht is kept up-to-date
|
||||
KBUILD_DEFCONFIG := versatile_defconfig
|
||||
|
||||
@ -14,16 +14,18 @@
|
||||
MKIMAGE := $(srctree)/scripts/mkuboot.sh
|
||||
|
||||
ifneq ($(MACHINE),)
|
||||
-include $(srctree)/$(MACHINE)/Makefile.boot
|
||||
include $(srctree)/$(MACHINE)/Makefile.boot
|
||||
endif
|
||||
|
||||
# Note: the following conditions must always be true:
|
||||
# ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET)
|
||||
# PARAMS_PHYS must be within 4MB of ZRELADDR
|
||||
# INITRD_PHYS must be in RAM
|
||||
ZRELADDR := $(zreladdr-y)
|
||||
PARAMS_PHYS := $(params_phys-y)
|
||||
INITRD_PHYS := $(initrd_phys-y)
|
||||
|
||||
export INITRD_PHYS PARAMS_PHYS
|
||||
export ZRELADDR INITRD_PHYS PARAMS_PHYS
|
||||
|
||||
targets := Image zImage xipImage bootpImage uImage
|
||||
|
||||
@ -65,7 +67,7 @@ quiet_cmd_uimage = UIMAGE $@
|
||||
ifeq ($(CONFIG_ZBOOT_ROM),y)
|
||||
$(obj)/uImage: LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
|
||||
else
|
||||
$(obj)/uImage: LOADADDR=$(CONFIG_ZRELADDR)
|
||||
$(obj)/uImage: LOADADDR=$(ZRELADDR)
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_THUMB2_KERNEL),y)
|
||||
|
||||
@ -79,6 +79,10 @@ endif
|
||||
EXTRA_CFLAGS := -fpic -fno-builtin
|
||||
EXTRA_AFLAGS := -Wa,-march=all
|
||||
|
||||
# Supply ZRELADDR to the decompressor via a linker symbol.
|
||||
ifneq ($(CONFIG_AUTO_ZRELADDR),y)
|
||||
LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
|
||||
endif
|
||||
ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
|
||||
LDFLAGS_vmlinux += --be8
|
||||
endif
|
||||
@ -112,5 +116,5 @@ CFLAGS_font.o := -Dstatic=
|
||||
$(obj)/font.c: $(FONTC)
|
||||
$(call cmd,shipped)
|
||||
|
||||
$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
|
||||
$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
|
||||
@sed "$(SEDFLAGS)" < $< > $@
|
||||
|
||||
@ -177,7 +177,7 @@ not_angel:
|
||||
and r4, pc, #0xf8000000
|
||||
add r4, r4, #TEXT_OFFSET
|
||||
#else
|
||||
ldr r4, =CONFIG_ZRELADDR
|
||||
ldr r4, =zreladdr
|
||||
#endif
|
||||
subs r0, r0, r1 @ calculate the delta offset
|
||||
|
||||
|
||||
@ -263,6 +263,22 @@ static int it8152_pci_platform_notify_remove(struct device *dev)
|
||||
return 0;
|
||||
}
|
||||
|
||||
int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
|
||||
{
|
||||
dev_dbg(dev, "%s: dma_addr %08x, size %08x\n",
|
||||
__func__, dma_addr, size);
|
||||
return (dev->bus == &pci_bus_type) &&
|
||||
((dma_addr + size - PHYS_OFFSET) >= SZ_64M);
|
||||
}
|
||||
|
||||
int dma_set_coherent_mask(struct device *dev, u64 mask)
|
||||
{
|
||||
if (mask >= PHYS_OFFSET + SZ_64M - 1)
|
||||
return 0;
|
||||
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
int __init it8152_pci_setup(int nr, struct pci_sys_data *sys)
|
||||
{
|
||||
it8152_io.start = IT8152_IO_BASE + 0x12000;
|
||||
|
||||
@ -13,6 +13,9 @@ CONFIG_MODULE_SRCVERSION_ALL=y
|
||||
# CONFIG_BLK_DEV_BSG is not set
|
||||
CONFIG_ARCH_OMAP=y
|
||||
CONFIG_ARCH_OMAP4=y
|
||||
# CONFIG_ARCH_OMAP2PLUS_TYPICAL is not set
|
||||
# CONFIG_ARCH_OMAP2 is not set
|
||||
# CONFIG_ARCH_OMAP3 is not set
|
||||
# CONFIG_OMAP_MUX is not set
|
||||
CONFIG_OMAP_32K_TIMER=y
|
||||
CONFIG_OMAP_DM_TIMER=y
|
||||
|
||||
@ -288,15 +288,7 @@ extern void dmabounce_unregister_dev(struct device *);
|
||||
* DMA access and 1 if the buffer needs to be bounced.
|
||||
*
|
||||
*/
|
||||
#ifdef CONFIG_SA1111
|
||||
extern int dma_needs_bounce(struct device*, dma_addr_t, size_t);
|
||||
#else
|
||||
static inline int dma_needs_bounce(struct device *dev, dma_addr_t addr,
|
||||
size_t size)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* The DMA API, implemented by dmabounce.c. See below for descriptions.
|
||||
|
||||
@ -17,7 +17,7 @@
|
||||
* counter interrupts are regular interrupts and not an NMI. This
|
||||
* means that when we receive the interrupt we can call
|
||||
* perf_event_do_pending() that handles all of the work with
|
||||
* interrupts enabled.
|
||||
* interrupts disabled.
|
||||
*/
|
||||
static inline void
|
||||
set_perf_event_pending(void)
|
||||
|
||||
@ -317,6 +317,10 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
|
||||
#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
|
||||
#define pgprot_dmacoherent(prot) \
|
||||
__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_BUFFERABLE)
|
||||
#define __HAVE_PHYS_MEM_ACCESS_PROT
|
||||
struct file;
|
||||
extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
|
||||
unsigned long size, pgprot_t vma_prot);
|
||||
#else
|
||||
#define pgprot_dmacoherent(prot) \
|
||||
__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_UNCACHED)
|
||||
|
||||
@ -158,15 +158,24 @@ struct pt_regs {
|
||||
*/
|
||||
static inline int valid_user_regs(struct pt_regs *regs)
|
||||
{
|
||||
if (user_mode(regs) && (regs->ARM_cpsr & PSR_I_BIT) == 0) {
|
||||
regs->ARM_cpsr &= ~(PSR_F_BIT | PSR_A_BIT);
|
||||
return 1;
|
||||
unsigned long mode = regs->ARM_cpsr & MODE_MASK;
|
||||
|
||||
/*
|
||||
* Always clear the F (FIQ) and A (delayed abort) bits
|
||||
*/
|
||||
regs->ARM_cpsr &= ~(PSR_F_BIT | PSR_A_BIT);
|
||||
|
||||
if ((regs->ARM_cpsr & PSR_I_BIT) == 0) {
|
||||
if (mode == USR_MODE)
|
||||
return 1;
|
||||
if (elf_hwcap & HWCAP_26BIT && mode == USR26_MODE)
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Force CPSR to something logical...
|
||||
*/
|
||||
regs->ARM_cpsr &= PSR_f | PSR_s | (PSR_x & ~PSR_A_BIT) | PSR_T_BIT | MODE32_BIT;
|
||||
regs->ARM_cpsr &= PSR_f | PSR_s | PSR_x | PSR_T_BIT | MODE32_BIT;
|
||||
if (!(elf_hwcap & HWCAP_26BIT))
|
||||
regs->ARM_cpsr |= USR_MODE;
|
||||
|
||||
|
||||
@ -392,6 +392,10 @@
|
||||
#define __NR_rt_tgsigqueueinfo (__NR_SYSCALL_BASE+363)
|
||||
#define __NR_perf_event_open (__NR_SYSCALL_BASE+364)
|
||||
#define __NR_recvmmsg (__NR_SYSCALL_BASE+365)
|
||||
#define __NR_accept4 (__NR_SYSCALL_BASE+366)
|
||||
#define __NR_fanotify_init (__NR_SYSCALL_BASE+367)
|
||||
#define __NR_fanotify_mark (__NR_SYSCALL_BASE+368)
|
||||
#define __NR_prlimit64 (__NR_SYSCALL_BASE+369)
|
||||
|
||||
/*
|
||||
* The following SWIs are ARM private.
|
||||
|
||||
@ -375,6 +375,10 @@
|
||||
CALL(sys_rt_tgsigqueueinfo)
|
||||
CALL(sys_perf_event_open)
|
||||
/* 365 */ CALL(sys_recvmmsg)
|
||||
CALL(sys_accept4)
|
||||
CALL(sys_fanotify_init)
|
||||
CALL(sys_fanotify_mark)
|
||||
CALL(sys_prlimit64)
|
||||
#ifndef syscalls_counted
|
||||
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
|
||||
#define syscalls_counted
|
||||
|
||||
@ -48,6 +48,8 @@ work_pending:
|
||||
beq no_work_pending
|
||||
mov r0, sp @ 'regs'
|
||||
mov r2, why @ 'syscall'
|
||||
tst r1, #_TIF_SIGPENDING @ delivering a signal?
|
||||
movne why, #0 @ prevent further restarts
|
||||
bl do_notify_resume
|
||||
b ret_slow_syscall @ Check work again
|
||||
|
||||
@ -418,11 +420,13 @@ ENDPROC(sys_clone_wrapper)
|
||||
|
||||
sys_sigreturn_wrapper:
|
||||
add r0, sp, #S_OFF
|
||||
mov why, #0 @ prevent syscall restart handling
|
||||
b sys_sigreturn
|
||||
ENDPROC(sys_sigreturn_wrapper)
|
||||
|
||||
sys_rt_sigreturn_wrapper:
|
||||
add r0, sp, #S_OFF
|
||||
mov why, #0 @ prevent syscall restart handling
|
||||
b sys_rt_sigreturn
|
||||
ENDPROC(sys_rt_sigreturn_wrapper)
|
||||
|
||||
|
||||
@ -230,7 +230,7 @@ static void etm_dump(void)
|
||||
etb_lock(t);
|
||||
}
|
||||
|
||||
static void sysrq_etm_dump(int key, struct tty_struct *tty)
|
||||
static void sysrq_etm_dump(int key)
|
||||
{
|
||||
dev_dbg(tracer.dev, "Dumping ETB buffer\n");
|
||||
etm_dump();
|
||||
|
||||
@ -79,7 +79,7 @@ sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *task)
|
||||
return;
|
||||
|
||||
/* Initialize to zero */
|
||||
for (regno = 0; regno < GDB_MAX_REGS; regno++)
|
||||
for (regno = 0; regno < DBG_MAX_REG_NUM; regno++)
|
||||
gdb_regs[regno] = 0;
|
||||
|
||||
/* Otherwise, we have only some registers from switch_to() */
|
||||
|
||||
@ -1162,11 +1162,12 @@ space_cccc_001x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
|
||||
{
|
||||
/*
|
||||
* MSR : cccc 0011 0x10 xxxx xxxx xxxx xxxx xxxx
|
||||
* Undef : cccc 0011 0x00 xxxx xxxx xxxx xxxx xxxx
|
||||
* Undef : cccc 0011 0100 xxxx xxxx xxxx xxxx xxxx
|
||||
* ALU op with S bit and Rd == 15 :
|
||||
* cccc 001x xxx1 xxxx 1111 xxxx xxxx xxxx
|
||||
*/
|
||||
if ((insn & 0x0f900000) == 0x03200000 || /* MSR & Undef */
|
||||
if ((insn & 0x0fb00000) == 0x03200000 || /* MSR */
|
||||
(insn & 0x0ff00000) == 0x03400000 || /* Undef */
|
||||
(insn & 0x0e10f000) == 0x0210f000) /* ALU s-bit, R15 */
|
||||
return INSN_REJECTED;
|
||||
|
||||
@ -1177,7 +1178,7 @@ space_cccc_001x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
|
||||
* *S (bit 20) updates condition codes
|
||||
* ADC/SBC/RSC reads the C flag
|
||||
*/
|
||||
insn &= 0xfff00fff; /* Rn = r0, Rd = r0 */
|
||||
insn &= 0xffff0fff; /* Rd = r0 */
|
||||
asi->insn[0] = insn;
|
||||
asi->insn_handler = (insn & (1 << 20)) ? /* S-bit */
|
||||
emulate_alu_imm_rwflags : emulate_alu_imm_rflags;
|
||||
|
||||
@ -319,8 +319,8 @@ validate_event(struct cpu_hw_events *cpuc,
|
||||
{
|
||||
struct hw_perf_event fake_event = event->hw;
|
||||
|
||||
if (event->pmu && event->pmu != &pmu)
|
||||
return 0;
|
||||
if (event->pmu != &pmu || event->state <= PERF_EVENT_STATE_OFF)
|
||||
return 1;
|
||||
|
||||
return armpmu->get_event_idx(cpuc, &fake_event) >= 0;
|
||||
}
|
||||
@ -1041,8 +1041,8 @@ armv6pmu_handle_irq(int irq_num,
|
||||
/*
|
||||
* Handle the pending perf events.
|
||||
*
|
||||
* Note: this call *must* be run with interrupts enabled. For
|
||||
* platforms that can have the PMU interrupts raised as a PMI, this
|
||||
* Note: this call *must* be run with interrupts disabled. For
|
||||
* platforms that can have the PMU interrupts raised as an NMI, this
|
||||
* will not work.
|
||||
*/
|
||||
perf_event_do_pending();
|
||||
@ -2017,8 +2017,8 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
|
||||
/*
|
||||
* Handle the pending perf events.
|
||||
*
|
||||
* Note: this call *must* be run with interrupts enabled. For
|
||||
* platforms that can have the PMU interrupts raised as a PMI, this
|
||||
* Note: this call *must* be run with interrupts disabled. For
|
||||
* platforms that can have the PMU interrupts raised as an NMI, this
|
||||
* will not work.
|
||||
*/
|
||||
perf_event_do_pending();
|
||||
|
||||
@ -62,8 +62,9 @@ asmlinkage int sys_vfork(struct pt_regs *regs)
|
||||
/* sys_execve() executes a new program.
|
||||
* This is called indirectly via a small wrapper
|
||||
*/
|
||||
asmlinkage int sys_execve(const char __user *filenamei, char __user * __user *argv,
|
||||
char __user * __user *envp, struct pt_regs *regs)
|
||||
asmlinkage int sys_execve(const char __user *filenamei,
|
||||
const char __user *const __user *argv,
|
||||
const char __user *const __user *envp, struct pt_regs *regs)
|
||||
{
|
||||
int error;
|
||||
char * filename;
|
||||
@ -78,14 +79,17 @@ out:
|
||||
return error;
|
||||
}
|
||||
|
||||
int kernel_execve(const char *filename, char *const argv[], char *const envp[])
|
||||
int kernel_execve(const char *filename,
|
||||
const char *const argv[],
|
||||
const char *const envp[])
|
||||
{
|
||||
struct pt_regs regs;
|
||||
int ret;
|
||||
|
||||
memset(®s, 0, sizeof(struct pt_regs));
|
||||
ret = do_execve(filename, (char __user * __user *)argv,
|
||||
(char __user * __user *)envp, ®s);
|
||||
ret = do_execve(filename,
|
||||
(const char __user *const __user *)argv,
|
||||
(const char __user *const __user *)envp, ®s);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
|
||||
|
||||
@ -121,8 +121,8 @@ static struct clk ssc1_clk = {
|
||||
.pmc_mask = 1 << AT91SAM9G45_ID_SSC1,
|
||||
.type = CLK_TYPE_PERIPHERAL,
|
||||
};
|
||||
static struct clk tcb_clk = {
|
||||
.name = "tcb_clk",
|
||||
static struct clk tcb0_clk = {
|
||||
.name = "tcb0_clk",
|
||||
.pmc_mask = 1 << AT91SAM9G45_ID_TCB,
|
||||
.type = CLK_TYPE_PERIPHERAL,
|
||||
};
|
||||
@ -192,6 +192,14 @@ static struct clk ohci_clk = {
|
||||
.parent = &uhphs_clk,
|
||||
};
|
||||
|
||||
/* One additional fake clock for second TC block */
|
||||
static struct clk tcb1_clk = {
|
||||
.name = "tcb1_clk",
|
||||
.pmc_mask = 0,
|
||||
.type = CLK_TYPE_PERIPHERAL,
|
||||
.parent = &tcb0_clk,
|
||||
};
|
||||
|
||||
static struct clk *periph_clocks[] __initdata = {
|
||||
&pioA_clk,
|
||||
&pioB_clk,
|
||||
@ -208,7 +216,7 @@ static struct clk *periph_clocks[] __initdata = {
|
||||
&spi1_clk,
|
||||
&ssc0_clk,
|
||||
&ssc1_clk,
|
||||
&tcb_clk,
|
||||
&tcb0_clk,
|
||||
&pwm_clk,
|
||||
&tsc_clk,
|
||||
&dma_clk,
|
||||
@ -221,6 +229,7 @@ static struct clk *periph_clocks[] __initdata = {
|
||||
&mmc1_clk,
|
||||
// irq0
|
||||
&ohci_clk,
|
||||
&tcb1_clk,
|
||||
};
|
||||
|
||||
/*
|
||||
|
||||
@ -46,7 +46,7 @@ static struct resource hdmac_resources[] = {
|
||||
.end = AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
[2] = {
|
||||
[1] = {
|
||||
.start = AT91SAM9G45_ID_DMA,
|
||||
.end = AT91SAM9G45_ID_DMA,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
@ -426,7 +426,7 @@ static struct i2c_gpio_platform_data pdata_i2c0 = {
|
||||
.sda_is_open_drain = 1,
|
||||
.scl_pin = AT91_PIN_PA21,
|
||||
.scl_is_open_drain = 1,
|
||||
.udelay = 2, /* ~100 kHz */
|
||||
.udelay = 5, /* ~100 kHz */
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9g45_twi0_device = {
|
||||
@ -440,7 +440,7 @@ static struct i2c_gpio_platform_data pdata_i2c1 = {
|
||||
.sda_is_open_drain = 1,
|
||||
.scl_pin = AT91_PIN_PB11,
|
||||
.scl_is_open_drain = 1,
|
||||
.udelay = 2, /* ~100 kHz */
|
||||
.udelay = 5, /* ~100 kHz */
|
||||
};
|
||||
|
||||
static struct platform_device at91sam9g45_twi1_device = {
|
||||
@ -835,9 +835,9 @@ static struct platform_device at91sam9g45_tcb1_device = {
|
||||
static void __init at91_add_device_tc(void)
|
||||
{
|
||||
/* this chip has one clock and irq for all six TC channels */
|
||||
at91_clock_associate("tcb_clk", &at91sam9g45_tcb0_device.dev, "t0_clk");
|
||||
at91_clock_associate("tcb0_clk", &at91sam9g45_tcb0_device.dev, "t0_clk");
|
||||
platform_device_register(&at91sam9g45_tcb0_device);
|
||||
at91_clock_associate("tcb_clk", &at91sam9g45_tcb1_device.dev, "t0_clk");
|
||||
at91_clock_associate("tcb1_clk", &at91sam9g45_tcb1_device.dev, "t0_clk");
|
||||
platform_device_register(&at91sam9g45_tcb1_device);
|
||||
}
|
||||
#else
|
||||
|
||||
@ -93,11 +93,12 @@ static struct resource dm9000_resource[] = {
|
||||
.start = AT91_PIN_PC11,
|
||||
.end = AT91_PIN_PC11,
|
||||
.flags = IORESOURCE_IRQ
|
||||
| IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
|
||||
}
|
||||
};
|
||||
|
||||
static struct dm9000_plat_data dm9000_platdata = {
|
||||
.flags = DM9000_PLATF_16BITONLY,
|
||||
.flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
|
||||
};
|
||||
|
||||
static struct platform_device dm9000_device = {
|
||||
@ -167,17 +168,6 @@ static struct at91_udc_data __initdata ek_udc_data = {
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* MCI (SD/MMC)
|
||||
*/
|
||||
static struct at91_mmc_data __initdata ek_mmc_data = {
|
||||
.wire4 = 1,
|
||||
// .det_pin = ... not connected
|
||||
// .wp_pin = ... not connected
|
||||
// .vcc_pin = ... not connected
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* NAND flash
|
||||
*/
|
||||
@ -246,6 +236,10 @@ static void __init ek_add_device_nand(void)
|
||||
at91_add_device_nand(&ek_nand_data);
|
||||
}
|
||||
|
||||
/*
|
||||
* SPI related devices
|
||||
*/
|
||||
#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
|
||||
|
||||
/*
|
||||
* ADS7846 Touchscreen
|
||||
@ -356,6 +350,19 @@ static struct spi_board_info ek_spi_devices[] = {
|
||||
#endif
|
||||
};
|
||||
|
||||
#else /* CONFIG_SPI_ATMEL_* */
|
||||
/* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
|
||||
|
||||
/*
|
||||
* MCI (SD/MMC)
|
||||
* det_pin, wp_pin and vcc_pin are not connected
|
||||
*/
|
||||
static struct at91_mmc_data __initdata ek_mmc_data = {
|
||||
.wire4 = 1,
|
||||
};
|
||||
|
||||
#endif /* CONFIG_SPI_ATMEL_* */
|
||||
|
||||
|
||||
/*
|
||||
* LCD Controller
|
||||
|
||||
@ -501,7 +501,8 @@ postcore_initcall(at91_clk_debugfs_init);
|
||||
int __init clk_register(struct clk *clk)
|
||||
{
|
||||
if (clk_is_peripheral(clk)) {
|
||||
clk->parent = &mck;
|
||||
if (!clk->parent)
|
||||
clk->parent = &mck;
|
||||
clk->mode = pmc_periph_mode;
|
||||
list_add_tail(&clk->node, &clocks);
|
||||
}
|
||||
|
||||
@ -28,17 +28,16 @@
|
||||
|
||||
static inline void arch_idle(void)
|
||||
{
|
||||
#ifndef CONFIG_DEBUG_KERNEL
|
||||
/*
|
||||
* Disable the processor clock. The processor will be automatically
|
||||
* re-enabled by an interrupt or by a reset.
|
||||
*/
|
||||
at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
|
||||
#else
|
||||
#ifndef CONFIG_CPU_ARM920T
|
||||
/*
|
||||
* Set the processor (CP15) into 'Wait for Interrupt' mode.
|
||||
* Unlike disabling the processor clock via the PMC (above)
|
||||
* this allows the processor to be woken via JTAG.
|
||||
* Post-RM9200 processors need this in conjunction with the above
|
||||
* to save power when idle.
|
||||
*/
|
||||
cpu_do_idle();
|
||||
#endif
|
||||
|
||||
@ -769,8 +769,7 @@ static struct map_desc dm355_io_desc[] = {
|
||||
.virtual = SRAM_VIRT,
|
||||
.pfn = __phys_to_pfn(0x00010000),
|
||||
.length = SZ_32K,
|
||||
/* MT_MEMORY_NONCACHED requires supersection alignment */
|
||||
.type = MT_DEVICE,
|
||||
.type = MT_MEMORY_NONCACHED,
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
@ -969,8 +969,7 @@ static struct map_desc dm365_io_desc[] = {
|
||||
.virtual = SRAM_VIRT,
|
||||
.pfn = __phys_to_pfn(0x00010000),
|
||||
.length = SZ_32K,
|
||||
/* MT_MEMORY_NONCACHED requires supersection alignment */
|
||||
.type = MT_DEVICE,
|
||||
.type = MT_MEMORY_NONCACHED,
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
@ -653,8 +653,7 @@ static struct map_desc dm644x_io_desc[] = {
|
||||
.virtual = SRAM_VIRT,
|
||||
.pfn = __phys_to_pfn(0x00008000),
|
||||
.length = SZ_16K,
|
||||
/* MT_MEMORY_NONCACHED requires supersection alignment */
|
||||
.type = MT_DEVICE,
|
||||
.type = MT_MEMORY_NONCACHED,
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
@ -737,8 +737,7 @@ static struct map_desc dm646x_io_desc[] = {
|
||||
.virtual = SRAM_VIRT,
|
||||
.pfn = __phys_to_pfn(0x00010000),
|
||||
.length = SZ_32K,
|
||||
/* MT_MEMORY_NONCACHED requires supersection alignment */
|
||||
.type = MT_DEVICE,
|
||||
.type = MT_MEMORY_NONCACHED,
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
@ -13,8 +13,8 @@
|
||||
|
||||
#define IO_SPACE_LIMIT 0xffffffff
|
||||
|
||||
#define __io(a) ((void __iomem *)(((a) - DOVE_PCIE0_IO_PHYS_BASE) +\
|
||||
DOVE_PCIE0_IO_VIRT_BASE))
|
||||
#define __mem_pci(a) (a)
|
||||
#define __io(a) ((void __iomem *)(((a) - DOVE_PCIE0_IO_BUS_BASE) + \
|
||||
DOVE_PCIE0_IO_VIRT_BASE))
|
||||
#define __mem_pci(a) (a)
|
||||
|
||||
#endif
|
||||
|
||||
@ -560,4 +560,4 @@ static int __init ep93xx_clock_init(void)
|
||||
clkdev_add_table(clocks, ARRAY_SIZE(clocks));
|
||||
return 0;
|
||||
}
|
||||
arch_initcall(ep93xx_clock_init);
|
||||
postcore_initcall(ep93xx_clock_init);
|
||||
|
||||
@ -276,7 +276,7 @@ static void channel_disable(struct m2p_channel *ch)
|
||||
v &= ~(M2P_CONTROL_STALL_IRQ_EN | M2P_CONTROL_NFB_IRQ_EN);
|
||||
m2p_set_control(ch, v);
|
||||
|
||||
while (m2p_channel_state(ch) == STATE_ON)
|
||||
while (m2p_channel_state(ch) >= STATE_ON)
|
||||
cpu_relax();
|
||||
|
||||
m2p_set_control(ch, 0x0);
|
||||
|
||||
@ -122,6 +122,7 @@ config MACH_CPUIMX27
|
||||
select IMX_HAVE_PLATFORM_IMX_I2C
|
||||
select IMX_HAVE_PLATFORM_IMX_UART
|
||||
select IMX_HAVE_PLATFORM_MXC_NAND
|
||||
select MXC_ULPI if USB_ULPI
|
||||
help
|
||||
Include support for Eukrea CPUIMX27 platform. This includes
|
||||
specific configurations for the module and its peripherals.
|
||||
|
||||
@ -259,7 +259,7 @@ static void __init eukrea_cpuimx27_init(void)
|
||||
i2c_register_board_info(0, eukrea_cpuimx27_i2c_devices,
|
||||
ARRAY_SIZE(eukrea_cpuimx27_i2c_devices));
|
||||
|
||||
imx27_add_i2c_imx1(&cpuimx27_i2c1_data);
|
||||
imx27_add_i2c_imx0(&cpuimx27_i2c1_data);
|
||||
|
||||
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
|
||||
|
||||
@ -279,13 +279,13 @@ static void __init eukrea_cpuimx27_init(void)
|
||||
#if defined(CONFIG_USB_ULPI)
|
||||
if (otg_mode_host) {
|
||||
otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
|
||||
USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
|
||||
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
|
||||
|
||||
mxc_register_device(&mxc_otg_host, &otg_pdata);
|
||||
}
|
||||
|
||||
usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
|
||||
USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
|
||||
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
|
||||
|
||||
mxc_register_device(&mxc_usbh2, &usbh2_pdata);
|
||||
#endif
|
||||
|
||||
@ -419,13 +419,13 @@ static void __init pca100_init(void)
|
||||
#if defined(CONFIG_USB_ULPI)
|
||||
if (otg_mode_host) {
|
||||
otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
|
||||
USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
|
||||
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
|
||||
|
||||
mxc_register_device(&mxc_otg_host, &otg_pdata);
|
||||
}
|
||||
|
||||
usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
|
||||
USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
|
||||
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
|
||||
|
||||
mxc_register_device(&mxc_usbh2, &usbh2_pdata);
|
||||
#endif
|
||||
|
||||
@ -503,6 +503,14 @@ struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
|
||||
return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys);
|
||||
}
|
||||
|
||||
int dma_set_coherent_mask(struct device *dev, u64 mask)
|
||||
{
|
||||
if (mask >= SZ_64M - 1)
|
||||
return 0;
|
||||
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(ixp4xx_pci_read);
|
||||
EXPORT_SYMBOL(ixp4xx_pci_write);
|
||||
|
||||
|
||||
@ -26,6 +26,8 @@
|
||||
#define PCIBIOS_MAX_MEM 0x4BFFFFFF
|
||||
#endif
|
||||
|
||||
#define ARCH_HAS_DMA_SET_COHERENT_MASK
|
||||
|
||||
#define pcibios_assign_all_busses() 1
|
||||
|
||||
/* Register locations and bits */
|
||||
|
||||
@ -38,7 +38,7 @@
|
||||
|
||||
#define KIRKWOOD_PCIE1_IO_PHYS_BASE 0xf3000000
|
||||
#define KIRKWOOD_PCIE1_IO_VIRT_BASE 0xfef00000
|
||||
#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00000000
|
||||
#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00100000
|
||||
#define KIRKWOOD_PCIE1_IO_SIZE SZ_1M
|
||||
|
||||
#define KIRKWOOD_PCIE_IO_PHYS_BASE 0xf2000000
|
||||
|
||||
@ -117,7 +117,7 @@ static void __init pcie0_ioresources_init(struct pcie_port *pp)
|
||||
* IORESOURCE_IO
|
||||
*/
|
||||
pp->res[0].name = "PCIe 0 I/O Space";
|
||||
pp->res[0].start = KIRKWOOD_PCIE_IO_PHYS_BASE;
|
||||
pp->res[0].start = KIRKWOOD_PCIE_IO_BUS_BASE;
|
||||
pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE_IO_SIZE - 1;
|
||||
pp->res[0].flags = IORESOURCE_IO;
|
||||
|
||||
@ -139,7 +139,7 @@ static void __init pcie1_ioresources_init(struct pcie_port *pp)
|
||||
* IORESOURCE_IO
|
||||
*/
|
||||
pp->res[0].name = "PCIe 1 I/O Space";
|
||||
pp->res[0].start = KIRKWOOD_PCIE1_IO_PHYS_BASE;
|
||||
pp->res[0].start = KIRKWOOD_PCIE1_IO_BUS_BASE;
|
||||
pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE1_IO_SIZE - 1;
|
||||
pp->res[0].flags = IORESOURCE_IO;
|
||||
|
||||
|
||||
@ -9,6 +9,8 @@
|
||||
#ifndef __ASM_MACH_SYSTEM_H
|
||||
#define __ASM_MACH_SYSTEM_H
|
||||
|
||||
#include <mach/cputype.h>
|
||||
|
||||
static inline void arch_idle(void)
|
||||
{
|
||||
cpu_do_idle();
|
||||
@ -16,6 +18,9 @@ static inline void arch_idle(void)
|
||||
|
||||
static inline void arch_reset(char mode, const char *cmd)
|
||||
{
|
||||
cpu_reset(0);
|
||||
if (cpu_is_pxa168())
|
||||
cpu_reset(0xffff0000);
|
||||
else
|
||||
cpu_reset(0);
|
||||
}
|
||||
#endif /* __ASM_MACH_SYSTEM_H */
|
||||
|
||||
@ -215,7 +215,7 @@ struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata = {
|
||||
* Add platform devices present on this baseboard and init
|
||||
* them from CPU side as far as required to use them later on
|
||||
*/
|
||||
void __init eukrea_mbimxsd_baseboard_init(void)
|
||||
void __init eukrea_mbimxsd25_baseboard_init(void)
|
||||
{
|
||||
if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
|
||||
ARRAY_SIZE(eukrea_mbimxsd_pads)))
|
||||
|
||||
@ -138,7 +138,7 @@ static void __init eukrea_cpuimx25_init(void)
|
||||
#if defined(CONFIG_USB_ULPI)
|
||||
if (otg_mode_host) {
|
||||
otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
|
||||
USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
|
||||
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
|
||||
|
||||
mxc_register_device(&mxc_otg, &otg_pdata);
|
||||
}
|
||||
@ -147,8 +147,8 @@ static void __init eukrea_cpuimx25_init(void)
|
||||
if (!otg_mode_host)
|
||||
mxc_register_device(&otg_udc_device, &otg_device_pdata);
|
||||
|
||||
#ifdef CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD
|
||||
eukrea_mbimxsd_baseboard_init();
|
||||
#ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
|
||||
eukrea_mbimxsd25_baseboard_init();
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
@ -155,7 +155,7 @@ static unsigned long get_rate_arm(void)
|
||||
|
||||
aad = &clk_consumer[(pdr0 >> 16) & 0xf];
|
||||
if (aad->sel)
|
||||
fref = fref * 2 / 3;
|
||||
fref = fref * 3 / 4;
|
||||
|
||||
return fref / aad->arm;
|
||||
}
|
||||
@ -164,7 +164,7 @@ static unsigned long get_rate_ahb(struct clk *clk)
|
||||
{
|
||||
unsigned long pdr0 = __raw_readl(CCM_BASE + CCM_PDR0);
|
||||
struct arm_ahb_div *aad;
|
||||
unsigned long fref = get_rate_mpll();
|
||||
unsigned long fref = get_rate_arm();
|
||||
|
||||
aad = &clk_consumer[(pdr0 >> 16) & 0xf];
|
||||
|
||||
@ -176,16 +176,11 @@ static unsigned long get_rate_ipg(struct clk *clk)
|
||||
return get_rate_ahb(NULL) >> 1;
|
||||
}
|
||||
|
||||
static unsigned long get_3_3_div(unsigned long in)
|
||||
{
|
||||
return (((in >> 3) & 0x7) + 1) * ((in & 0x7) + 1);
|
||||
}
|
||||
|
||||
static unsigned long get_rate_uart(struct clk *clk)
|
||||
{
|
||||
unsigned long pdr3 = __raw_readl(CCM_BASE + CCM_PDR3);
|
||||
unsigned long pdr4 = __raw_readl(CCM_BASE + CCM_PDR4);
|
||||
unsigned long div = get_3_3_div(pdr4 >> 10);
|
||||
unsigned long div = ((pdr4 >> 10) & 0x3f) + 1;
|
||||
|
||||
if (pdr3 & (1 << 14))
|
||||
return get_rate_arm() / div;
|
||||
@ -216,7 +211,7 @@ static unsigned long get_rate_sdhc(struct clk *clk)
|
||||
break;
|
||||
}
|
||||
|
||||
return rate / get_3_3_div(div);
|
||||
return rate / (div + 1);
|
||||
}
|
||||
|
||||
static unsigned long get_rate_mshc(struct clk *clk)
|
||||
@ -270,7 +265,7 @@ static unsigned long get_rate_csi(struct clk *clk)
|
||||
else
|
||||
rate = get_rate_ppll();
|
||||
|
||||
return rate / get_3_3_div((pdr2 >> 16) & 0x3f);
|
||||
return rate / (((pdr2 >> 16) & 0x3f) + 1);
|
||||
}
|
||||
|
||||
static unsigned long get_rate_otg(struct clk *clk)
|
||||
@ -283,25 +278,51 @@ static unsigned long get_rate_otg(struct clk *clk)
|
||||
else
|
||||
rate = get_rate_ppll();
|
||||
|
||||
return rate / get_3_3_div((pdr4 >> 22) & 0x3f);
|
||||
return rate / (((pdr4 >> 22) & 0x3f) + 1);
|
||||
}
|
||||
|
||||
static unsigned long get_rate_ipg_per(struct clk *clk)
|
||||
{
|
||||
unsigned long pdr0 = __raw_readl(CCM_BASE + CCM_PDR0);
|
||||
unsigned long pdr4 = __raw_readl(CCM_BASE + CCM_PDR4);
|
||||
unsigned long div1, div2;
|
||||
unsigned long div;
|
||||
|
||||
if (pdr0 & (1 << 26)) {
|
||||
div1 = (pdr4 >> 19) & 0x7;
|
||||
div2 = (pdr4 >> 16) & 0x7;
|
||||
return get_rate_arm() / ((div1 + 1) * (div2 + 1));
|
||||
div = (pdr4 >> 16) & 0x3f;
|
||||
return get_rate_arm() / (div + 1);
|
||||
} else {
|
||||
div1 = (pdr0 >> 12) & 0x7;
|
||||
return get_rate_ahb(NULL) / div1;
|
||||
div = (pdr0 >> 12) & 0x7;
|
||||
return get_rate_ahb(NULL) / (div + 1);
|
||||
}
|
||||
}
|
||||
|
||||
static unsigned long get_rate_hsp(struct clk *clk)
|
||||
{
|
||||
unsigned long hsp_podf = (__raw_readl(CCM_BASE + CCM_PDR0) >> 20) & 0x03;
|
||||
unsigned long fref = get_rate_mpll();
|
||||
|
||||
if (fref > 400 * 1000 * 1000) {
|
||||
switch (hsp_podf) {
|
||||
case 0:
|
||||
return fref >> 2;
|
||||
case 1:
|
||||
return fref >> 3;
|
||||
case 2:
|
||||
return fref / 3;
|
||||
}
|
||||
} else {
|
||||
switch (hsp_podf) {
|
||||
case 0:
|
||||
case 2:
|
||||
return fref / 3;
|
||||
case 1:
|
||||
return fref / 6;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int clk_cgr_enable(struct clk *clk)
|
||||
{
|
||||
u32 reg;
|
||||
@ -359,7 +380,7 @@ DEFINE_CLOCK(i2c1_clk, 0, CCM_CGR1, 10, get_rate_ipg_per, NULL);
|
||||
DEFINE_CLOCK(i2c2_clk, 1, CCM_CGR1, 12, get_rate_ipg_per, NULL);
|
||||
DEFINE_CLOCK(i2c3_clk, 2, CCM_CGR1, 14, get_rate_ipg_per, NULL);
|
||||
DEFINE_CLOCK(iomuxc_clk, 0, CCM_CGR1, 16, NULL, NULL);
|
||||
DEFINE_CLOCK(ipu_clk, 0, CCM_CGR1, 18, get_rate_ahb, NULL);
|
||||
DEFINE_CLOCK(ipu_clk, 0, CCM_CGR1, 18, get_rate_hsp, NULL);
|
||||
DEFINE_CLOCK(kpp_clk, 0, CCM_CGR1, 20, get_rate_ipg, NULL);
|
||||
DEFINE_CLOCK(mlb_clk, 0, CCM_CGR1, 22, get_rate_ahb, NULL);
|
||||
DEFINE_CLOCK(mshc_clk, 0, CCM_CGR1, 24, get_rate_mshc, NULL);
|
||||
@ -485,10 +506,10 @@ static struct clk_lookup lookups[] = {
|
||||
|
||||
int __init mx35_clocks_init()
|
||||
{
|
||||
unsigned int ll = 0;
|
||||
unsigned int cgr2 = 3 << 26, cgr3 = 0;
|
||||
|
||||
#if defined(CONFIG_DEBUG_LL) && !defined(CONFIG_DEBUG_ICEDCC)
|
||||
ll = (3 << 16);
|
||||
cgr2 |= 3 << 16;
|
||||
#endif
|
||||
|
||||
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
|
||||
@ -499,8 +520,20 @@ int __init mx35_clocks_init()
|
||||
__raw_writel((3 << 18), CCM_BASE + CCM_CGR0);
|
||||
__raw_writel((3 << 2) | (3 << 4) | (3 << 6) | (3 << 8) | (3 << 16),
|
||||
CCM_BASE + CCM_CGR1);
|
||||
__raw_writel((3 << 26) | ll, CCM_BASE + CCM_CGR2);
|
||||
__raw_writel(0, CCM_BASE + CCM_CGR3);
|
||||
|
||||
/*
|
||||
* Check if we came up in internal boot mode. If yes, we need some
|
||||
* extra clocks turned on, otherwise the MX35 boot ROM code will
|
||||
* hang after a watchdog reset.
|
||||
*/
|
||||
if (!(__raw_readl(CCM_BASE + CCM_RCSR) & (3 << 10))) {
|
||||
/* Additionally turn on UART1, SCC, and IIM clocks */
|
||||
cgr2 |= 3 << 16 | 3 << 4;
|
||||
cgr3 |= 3 << 2;
|
||||
}
|
||||
|
||||
__raw_writel(cgr2, CCM_BASE + CCM_CGR2);
|
||||
__raw_writel(cgr3, CCM_BASE + CCM_CGR3);
|
||||
|
||||
mxc_timer_init(&gpt_clk,
|
||||
MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR), MX35_INT_GPT);
|
||||
|
||||
@ -216,7 +216,7 @@ struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata = {
|
||||
* Add platform devices present on this baseboard and init
|
||||
* them from CPU side as far as required to use them later on
|
||||
*/
|
||||
void __init eukrea_mbimxsd_baseboard_init(void)
|
||||
void __init eukrea_mbimxsd35_baseboard_init(void)
|
||||
{
|
||||
if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
|
||||
ARRAY_SIZE(eukrea_mbimxsd_pads)))
|
||||
|
||||
@ -192,7 +192,7 @@ static void __init mxc_board_init(void)
|
||||
#if defined(CONFIG_USB_ULPI)
|
||||
if (otg_mode_host) {
|
||||
otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
|
||||
USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
|
||||
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
|
||||
|
||||
mxc_register_device(&mxc_otg_host, &otg_pdata);
|
||||
}
|
||||
@ -201,8 +201,8 @@ static void __init mxc_board_init(void)
|
||||
if (!otg_mode_host)
|
||||
mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
|
||||
|
||||
#ifdef CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD
|
||||
eukrea_mbimxsd_baseboard_init();
|
||||
#ifdef CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD
|
||||
eukrea_mbimxsd35_baseboard_init();
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
@ -56,7 +56,7 @@ static void _clk_ccgr_disable(struct clk *clk)
|
||||
{
|
||||
u32 reg;
|
||||
reg = __raw_readl(clk->enable_reg);
|
||||
reg &= ~(MXC_CCM_CCGRx_MOD_OFF << clk->enable_shift);
|
||||
reg &= ~(MXC_CCM_CCGRx_CG_MASK << clk->enable_shift);
|
||||
__raw_writel(reg, clk->enable_reg);
|
||||
|
||||
}
|
||||
|
||||
@ -25,6 +25,7 @@ obj-$(CONFIG_LOCAL_TIMERS) += timer-mpu.o
|
||||
obj-$(CONFIG_HOTPLUG_CPU) += omap-hotplug.o
|
||||
obj-$(CONFIG_ARCH_OMAP4) += omap44xx-smc.o omap4-common.o
|
||||
|
||||
AFLAGS_omap-headsmp.o :=-Wa,-march=armv7-a
|
||||
AFLAGS_omap44xx-smc.o :=-Wa,-march=armv7-a
|
||||
|
||||
# Functions loaded to SRAM
|
||||
|
||||
@ -3417,7 +3417,13 @@ int __init omap3xxx_clk_init(void)
|
||||
struct omap_clk *c;
|
||||
u32 cpu_clkflg = CK_3XXX;
|
||||
|
||||
if (cpu_is_omap34xx()) {
|
||||
if (cpu_is_omap3517()) {
|
||||
cpu_mask = RATE_IN_3XXX | RATE_IN_3430ES2PLUS;
|
||||
cpu_clkflg |= CK_3517;
|
||||
} else if (cpu_is_omap3505()) {
|
||||
cpu_mask = RATE_IN_3XXX | RATE_IN_3430ES2PLUS;
|
||||
cpu_clkflg |= CK_3505;
|
||||
} else if (cpu_is_omap34xx()) {
|
||||
cpu_mask = RATE_IN_3XXX;
|
||||
cpu_clkflg |= CK_343X;
|
||||
|
||||
@ -3432,12 +3438,6 @@ int __init omap3xxx_clk_init(void)
|
||||
cpu_mask |= RATE_IN_3430ES2PLUS;
|
||||
cpu_clkflg |= CK_3430ES2;
|
||||
}
|
||||
} else if (cpu_is_omap3517()) {
|
||||
cpu_mask = RATE_IN_3XXX | RATE_IN_3430ES2PLUS;
|
||||
cpu_clkflg |= CK_3517;
|
||||
} else if (cpu_is_omap3505()) {
|
||||
cpu_mask = RATE_IN_3XXX | RATE_IN_3430ES2PLUS;
|
||||
cpu_clkflg |= CK_3505;
|
||||
}
|
||||
|
||||
if (omap3_has_192mhz_clk())
|
||||
|
||||
@ -284,8 +284,8 @@ static void __init omap3_check_revision(void)
|
||||
default:
|
||||
omap_revision = OMAP3630_REV_ES1_2;
|
||||
omap_chip.oc |= CHIP_IS_OMAP3630ES1_2;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
/* Unknown default to latest silicon rev as default*/
|
||||
omap_revision = OMAP3630_REV_ES1_2;
|
||||
|
||||
@ -177,7 +177,10 @@ omap_irq_base: .word 0
|
||||
cmpne \irqnr, \tmp
|
||||
cmpcs \irqnr, \irqnr
|
||||
.endm
|
||||
#endif
|
||||
#endif /* MULTI_OMAP2 */
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
/* We assume that irqstat (the raw value of the IRQ acknowledge
|
||||
* register) is preserved from the macro above.
|
||||
* If there is an IPI, we immediately signal end of interrupt
|
||||
@ -205,8 +208,7 @@ omap_irq_base: .word 0
|
||||
streq \irqstat, [\base, #GIC_CPU_EOI]
|
||||
cmp \tmp, #0
|
||||
.endm
|
||||
#endif
|
||||
#endif /* MULTI_OMAP2 */
|
||||
#endif /* CONFIG_SMP */
|
||||
|
||||
.macro irq_prio_table
|
||||
.endm
|
||||
|
||||
@ -102,8 +102,7 @@ static void __init wakeup_secondary(void)
|
||||
* Send a 'sev' to wake the secondary core from WFE.
|
||||
* Drain the outstanding writes to memory
|
||||
*/
|
||||
dsb();
|
||||
set_event();
|
||||
dsb_sev();
|
||||
mb();
|
||||
}
|
||||
|
||||
|
||||
@ -480,7 +480,9 @@ void omap_sram_idle(void)
|
||||
}
|
||||
|
||||
/* Disable IO-PAD and IO-CHAIN wakeup */
|
||||
if (omap3_has_io_wakeup() && core_next_state < PWRDM_POWER_ON) {
|
||||
if (omap3_has_io_wakeup() &&
|
||||
(per_next_state < PWRDM_POWER_ON ||
|
||||
core_next_state < PWRDM_POWER_ON)) {
|
||||
prm_clear_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, PM_WKEN);
|
||||
omap3_disable_io_chain();
|
||||
}
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user