hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge commit 'origin/master' 

Manually fixed up:

	drivers/net/fs_enet/fs_enet-main.c
This commit is contained in:
Benjamin Herrenschmidt 2008-07-22 17:12:37 +10:00
parent c69cccc95f 93ded9b8fd
commit 8725f25acc
2632 changed files with 206418 additions and 126297 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
CREDITS
View File

@ -3344,8 +3344,7 @@ S: Spain
N: Linus Torvalds
E: torvalds@linux-foundation.org
D: Original kernel hacker
S: 12725 SW Millikan Way, Suite 400
S: Beaverton, Oregon 97005
S: Portland, Oregon 97005
S: USA
N: Marcelo Tosatti

38
Documentation/DocBook/gadget.tmpl
View File

@ -524,6 +524,44 @@ These utilities include endpoint autoconfiguration.
<!-- !Edrivers/usb/gadget/epautoconf.c -->
</sect1>
<sect1 id="composite"><title>Composite Device Framework</title>
<para>The core API is sufficient for writing drivers for composite
USB devices (with more than one function in a given configuration),
and also multi-configuration devices (also more than one function,
but not necessarily sharing a given configuration).
There is however an optional framework which makes it easier to
reuse and combine functions.
</para>
<para>Devices using this framework provide a <emphasis>struct
usb_composite_driver</emphasis>, which in turn provides one or
more <emphasis>struct usb_configuration</emphasis> instances.
Each such configuration includes at least one
<emphasis>struct usb_function</emphasis>, which packages a user
visible role such as "network link" or "mass storage device".
Management functions may also exist, such as "Device Firmware
Upgrade".
</para>
!Iinclude/linux/usb/composite.h
!Edrivers/usb/gadget/composite.c
</sect1>
<sect1 id="functions"><title>Composite Device Functions</title>
<para>At this writing, a few of the current gadget drivers have
been converted to this framework.
Near-term plans include converting all of them, except for "gadgetfs".
</para>
!Edrivers/usb/gadget/f_acm.c
!Edrivers/usb/gadget/f_serial.c
</sect1>
</chapter>
<chapter id="controllers"><title>Peripheral Controller Drivers</title>

32
Documentation/feature-removal-schedule.txt
View File

@ -308,9 +308,41 @@ Who: Matthew Wilcox <willy@linux.intel.com>
---------------------------
What: SCTP_GET_PEER_ADDRS_NUM_OLD, SCTP_GET_PEER_ADDRS_OLD,
SCTP_GET_LOCAL_ADDRS_NUM_OLD, SCTP_GET_LOCAL_ADDRS_OLD
When: June 2009
Why: A newer version of the options have been introduced in 2005 that
removes the limitions of the old API. The sctp library has been
converted to use these new options at the same time. Any user
space app that directly uses the old options should convert to using
the new options.
Who: Vlad Yasevich <vladislav.yasevich@hp.com>
---------------------------
What: CONFIG_THERMAL_HWMON
When: January 2009
Why: This option was introduced just to allow older lm-sensors userspace
to keep working over the upgrade to 2.6.26. At the scheduled time of
removal fixed lm-sensors (2.x or 3.x) should be readily available.
Who: Rene Herman <rene.herman@gmail.com>
---------------------------
What: Code that is now under CONFIG_WIRELESS_EXT_SYSFS
(in net/core/net-sysfs.c)
When: After the only user (hal) has seen a release with the patches
for enough time, probably some time in 2010.
Why: Over 1K .text/.data size reduction, data is available in other
ways (ioctls)
Who: Johannes Berg <johannes@sipsolutions.net>
---------------------------
What: CONFIG_NF_CT_ACCT
When: 2.6.29
Why: Accounting can now be enabled/disabled without kernel recompilation.
Currently used only to set a default value for a feature that is also
controlled by a kernel/module/sysfs/sysctl parameter.
Who: Krzysztof Piotr Oledzki <ole@ans.pl>

4
Documentation/filesystems/configfs/configfs_example.c
View File

@ -279,7 +279,7 @@ static struct config_item *simple_children_make_item(struct config_group *group,
simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL);
if (!simple_child)
return NULL;
return ERR_PTR(-ENOMEM);
config_item_init_type_name(&simple_child->item, name,
@ -366,7 +366,7 @@ static struct config_group *group_children_make_group(struct config_group *group
simple_children = kzalloc(sizeof(struct simple_children),
GFP_KERNEL);
if (!simple_children)
return NULL;
return ERR_PTR(-ENOMEM);
config_group_init_type_name(&simple_children->group, name,

103
Documentation/filesystems/nfs-rdma.txt
View File

@ -5,7 +5,7 @@
################################################################################
Author: NetApp and Open Grid Computing
Date: April 15, 2008
Date: May 29, 2008
Table of Contents
~~~~~~~~~~~~~~~~~
@ -60,16 +60,18 @@ Installation
The procedures described in this document have been tested with
distributions from Red Hat's Fedora Project (http://fedora.redhat.com/).
- Install nfs-utils-1.1.1 or greater on the client
- Install nfs-utils-1.1.2 or greater on the client
An NFS/RDMA mount point can only be obtained by using the mount.nfs
command in nfs-utils-1.1.1 or greater. To see which version of mount.nfs
you are using, type:
An NFS/RDMA mount point can be obtained by using the mount.nfs command in
nfs-utils-1.1.2 or greater (nfs-utils-1.1.1 was the first nfs-utils
version with support for NFS/RDMA mounts, but for various reasons we
recommend using nfs-utils-1.1.2 or greater). To see which version of
mount.nfs you are using, type:
> /sbin/mount.nfs -V
$ /sbin/mount.nfs -V
If the version is less than 1.1.1 or the command does not exist,
then you will need to install the latest version of nfs-utils.
If the version is less than 1.1.2 or the command does not exist,
you should install the latest version of nfs-utils.
Download the latest package from:
@ -77,22 +79,33 @@ Installation
Uncompress the package and follow the installation instructions.
If you will not be using GSS and NFSv4, the installation process
can be simplified by disabling these features when running configure:
If you will not need the idmapper and gssd executables (you do not need
these to create an NFS/RDMA enabled mount command), the installation
process can be simplified by disabling these features when running
configure:
> ./configure --disable-gss --disable-nfsv4
$ ./configure --disable-gss --disable-nfsv4
For more information on this see the package's README and INSTALL files.
To build nfs-utils you will need the tcp_wrappers package installed. For
more information on this see the package's README and INSTALL files.
After building the nfs-utils package, there will be a mount.nfs binary in
the utils/mount directory. This binary can be used to initiate NFS v2, v3,
or v4 mounts. To initiate a v4 mount, the binary must be called mount.nfs4.
The standard technique is to create a symlink called mount.nfs4 to mount.nfs.
or v4 mounts. To initiate a v4 mount, the binary must be called
mount.nfs4. The standard technique is to create a symlink called
mount.nfs4 to mount.nfs.
NOTE: mount.nfs and therefore nfs-utils-1.1.1 or greater is only needed
This mount.nfs binary should be installed at /sbin/mount.nfs as follows:
$ sudo cp utils/mount/mount.nfs /sbin/mount.nfs
In this location, mount.nfs will be invoked automatically for NFS mounts
by the system mount commmand.
NOTE: mount.nfs and therefore nfs-utils-1.1.2 or greater is only needed
on the NFS client machine. You do not need this specific version of
nfs-utils on the server. Furthermore, only the mount.nfs command from
nfs-utils-1.1.1 is needed on the client.
nfs-utils-1.1.2 is needed on the client.
- Install a Linux kernel with NFS/RDMA
@ -156,8 +169,8 @@ Check RDMA and NFS Setup
this time. For example, if you are using a Mellanox Tavor/Sinai/Arbel
card:
> modprobe ib_mthca
> modprobe ib_ipoib
$ modprobe ib_mthca
$ modprobe ib_ipoib
If you are using InfiniBand, make sure there is a Subnet Manager (SM)
running on the network. If your IB switch has an embedded SM, you can
@ -166,7 +179,7 @@ Check RDMA and NFS Setup
If an SM is running on your network, you should see the following:
> cat /sys/class/infiniband/driverX/ports/1/state
$ cat /sys/class/infiniband/driverX/ports/1/state
4: ACTIVE
where driverX is mthca0, ipath5, ehca3, etc.
@ -174,10 +187,10 @@ Check RDMA and NFS Setup
To further test the InfiniBand software stack, use IPoIB (this
assumes you have two IB hosts named host1 and host2):
host1> ifconfig ib0 a.b.c.x
host2> ifconfig ib0 a.b.c.y
host1> ping a.b.c.y
host2> ping a.b.c.x
host1$ ifconfig ib0 a.b.c.x
host2$ ifconfig ib0 a.b.c.y
host1$ ping a.b.c.y
host2$ ping a.b.c.x
For other device types, follow the appropriate procedures.
@ -202,11 +215,11 @@ NFS/RDMA Setup
/vol0 192.168.0.47(fsid=0,rw,async,insecure,no_root_squash)
/vol0 192.168.0.0/255.255.255.0(fsid=0,rw,async,insecure,no_root_squash)
The IP address(es) is(are) the client's IPoIB address for an InfiniBand HCA or the
cleint's iWARP address(es) for an RNIC.
The IP address(es) is(are) the client's IPoIB address for an InfiniBand
HCA or the cleint's iWARP address(es) for an RNIC.
NOTE: The "insecure" option must be used because the NFS/RDMA client does not
use a reserved port.
NOTE: The "insecure" option must be used because the NFS/RDMA client does
not use a reserved port.
Each time a machine boots:
@ -214,43 +227,45 @@ NFS/RDMA Setup
For InfiniBand using a Mellanox adapter:
> modprobe ib_mthca
> modprobe ib_ipoib
> ifconfig ib0 a.b.c.d
$ modprobe ib_mthca
$ modprobe ib_ipoib
$ ifconfig ib0 a.b.c.d
NOTE: use unique addresses for the client and server
- Start the NFS server
If the NFS/RDMA server was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in kernel config),
load the RDMA transport module:
If the NFS/RDMA server was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
kernel config), load the RDMA transport module:
> modprobe svcrdma
$ modprobe svcrdma
Regardless of how the server was built (module or built-in), start the server:
Regardless of how the server was built (module or built-in), start the
server:
> /etc/init.d/nfs start
$ /etc/init.d/nfs start
or
> service nfs start
$ service nfs start
Instruct the server to listen on the RDMA transport:
> echo rdma 2050 > /proc/fs/nfsd/portlist
$ echo rdma 2050 > /proc/fs/nfsd/portlist
- On the client system
If the NFS/RDMA client was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in kernel config),
load the RDMA client module:
If the NFS/RDMA client was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
kernel config), load the RDMA client module:
> modprobe xprtrdma.ko
$ modprobe xprtrdma.ko
Regardless of how the client was built (module or built-in), issue the mount.nfs command:
Regardless of how the client was built (module or built-in), use this
command to mount the NFS/RDMA server:
> /path/to/your/mount.nfs <IPoIB-server-name-or-address>:/<export> /mnt -i -o rdma,port=2050
$ mount -o rdma,port=2050 <IPoIB-server-name-or-address>:/<export> /mnt
To verify that the mount is using RDMA, run "cat /proc/mounts" and check the
"proto" field for the given mount.
To verify that the mount is using RDMA, run "cat /proc/mounts" and check
the "proto" field for the given mount.
Congratulations! You're using NFS/RDMA!

137
Documentation/ia64/paravirt_ops.txt Normal file
View File

@ -0,0 +1,137 @@
Paravirt_ops on IA64
====================
21 May 2008, Isaku Yamahata <yamahata@valinux.co.jp>
Introduction
------------
The aim of this documentation is to help with maintainability and/or to
encourage people to use paravirt_ops/IA64.
paravirt_ops (pv_ops in short) is a way for virtualization support of
Linux kernel on x86. Several ways for virtualization support were
proposed, paravirt_ops is the winner.
On the other hand, now there are also several IA64 virtualization
technologies like kvm/IA64, xen/IA64 and many other academic IA64
hypervisors so that it is good to add generic virtualization
infrastructure on Linux/IA64.
What is paravirt_ops?
---------------------
It has been developed on x86 as virtualization support via API, not ABI.
It allows each hypervisor to override operations which are important for
hypervisors at API level. And it allows a single kernel binary to run on
all supported execution environments including native machine.
Essentially paravirt_ops is a set of function pointers which represent
operations corresponding to low level sensitive instructions and high
level functionalities in various area. But one significant difference
from usual function pointer table is that it allows optimization with
binary patch. It is because some of these operations are very
performance sensitive and indirect call overhead is not negligible.
With binary patch, indirect C function call can be transformed into
direct C function call or in-place execution to eliminate the overhead.
Thus, operations of paravirt_ops are classified into three categories.
- simple indirect call
These operations correspond to high level functionality so that the
overhead of indirect call isn't very important.
- indirect call which allows optimization with binary patch
Usually these operations correspond to low level instructions. They
are called frequently and performance critical. So the overhead is
very important.
- a set of macros for hand written assembly code
Hand written assembly codes (.S files) also need paravirtualization
because they include sensitive instructions or some of code paths in
them are very performance critical.
The relation to the IA64 machine vector
---------------------------------------
Linux/IA64 has the IA64 machine vector functionality which allows the
kernel to switch implementations (e.g. initialization, ipi, dma api...)
depending on executing platform.
We can replace some implementations very easily defining a new machine
vector. Thus another approach for virtualization support would be
enhancing the machine vector functionality.
But paravirt_ops approach was taken because
- virtualization support needs wider support than machine vector does.
e.g. low level instruction paravirtualization. It must be
initialized very early before platform detection.
- virtualization support needs more functionality like binary patch.
Probably the calling overhead might not be very large compared to the
emulation overhead of virtualization. However in the native case, the
overhead should be eliminated completely.
A single kernel binary should run on each environment including native,
and the overhead of paravirt_ops on native environment should be as
small as possible.
- for full virtualization technology, e.g. KVM/IA64 or
Xen/IA64 HVM domain, the result would be
(the emulated platform machine vector. probably dig) + (pv_ops).
This means that the virtualization support layer should be under
the machine vector layer.
Possibly it might be better to move some function pointers from
paravirt_ops to machine vector. In fact, Xen domU case utilizes both
pv_ops and machine vector.
IA64 paravirt_ops
-----------------
In this section, the concrete paravirt_ops will be discussed.
Because of the architecture difference between ia64 and x86, the
resulting set of functions is very different from x86 pv_ops.
- C function pointer tables
They are not very performance critical so that simple C indirect
function call is acceptable. The following structures are defined at
this moment. For details see linux/include/asm-ia64/paravirt.h
- struct pv_info
This structure describes the execution environment.
- struct pv_init_ops
This structure describes the various initialization hooks.
- struct pv_iosapic_ops
This structure describes hooks to iosapic operations.
- struct pv_irq_ops
This structure describes hooks to irq related operations
- struct pv_time_op
This structure describes hooks to steal time accounting.
- a set of indirect calls which need optimization
Currently this class of functions correspond to a subset of IA64
intrinsics. At this moment the optimization with binary patch isn't
implemented yet.
struct pv_cpu_op is defined. For details see
linux/include/asm-ia64/paravirt_privop.h
Mostly they correspond to ia64 intrinsics 1-to-1.
Caveat: Now they are defined as C indirect function pointers, but in
order to support binary patch optimization, they will be changed
using GCC extended inline assembly code.
- a set of macros for hand written assembly code (.S files)
For maintenance purpose, the taken approach for .S files is single
source code and compile multiple times with different macros definitions.
Each pv_ops instance must define those macros to compile.
The important thing here is that sensitive, but non-privileged
instructions must be paravirtualized and that some privileged
instructions also need paravirtualization for reasonable performance.
Developers who modify .S files must be aware of that. At this moment
an easy checker is implemented to detect paravirtualization breakage.
But it doesn't cover all the cases.
Sometimes this set of macros is called pv_cpu_asm_op. But there is no
corresponding structure in the source code.
Those macros mostly 1:1 correspond to a subset of privileged
instructions. See linux/include/asm-ia64/native/inst.h.
And some functions written in assembly also need to be overrided so
that each pv_ops instance have to define some macros. Again see
linux/include/asm-ia64/native/inst.h.
Those structures must be initialized very early before start_kernel.
Probably initialized in head.S using multi entry point or some other trick.
For native case implementation see linux/arch/ia64/kernel/paravirt.c.

2
Documentation/input/gameport-programming.txt
View File

@ -1,5 +1,3 @@
$Id: gameport-programming.txt,v 1.3 2001/04/24 13:51:37 vojtech Exp $
Programming gameport drivers
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1
Documentation/input/input.txt
View File

@ -1,7 +1,6 @@
Linux Input drivers v1.0
(c) 1999-2001 Vojtech Pavlik <vojtech@ucw.cz>
Sponsored by SuSE
$Id: input.txt,v 1.8 2002/05/29 03:15:01 bradleym Exp $
----------------------------------------------------------------------------
0. Disclaimer

2
Documentation/input/joystick-api.txt
View File

@ -5,8 +5,6 @@
7 Aug 1998
$Id: joystick-api.txt,v 1.2 2001/05/08 21:21:23 vojtech Exp $
1. Initialization
~~~~~~~~~~~~~~~~~

1
Documentation/input/joystick-parport.txt
View File

@ -2,7 +2,6 @@
(c) 1998-2000 Vojtech Pavlik <vojtech@ucw.cz>
(c) 1998 Andree Borrmann <a.borrmann@tu-bs.de>
Sponsored by SuSE
$Id: joystick-parport.txt,v 1.6 2001/09/25 09:31:32 vojtech Exp $
----------------------------------------------------------------------------
0. Disclaimer

1
Documentation/input/joystick.txt
View File

@ -1,7 +1,6 @@
Linux Joystick driver v2.0.0
(c) 1996-2000 Vojtech Pavlik <vojtech@ucw.cz>
Sponsored by SuSE
$Id: joystick.txt,v 1.12 2002/03/03 12:13:07 jdeneux Exp $
----------------------------------------------------------------------------
0. Disclaimer

22
Documentation/kernel-parameters.txt
View File

@ -147,10 +147,14 @@ and is between 256 and 4096 characters. It is defined in the file
default: 0
acpi_sleep= [HW,ACPI] Sleep options
Format: { s3_bios, s3_mode, s3_beep }
Format: { s3_bios, s3_mode, s3_beep, old_ordering }
See Documentation/power/video.txt for s3_bios and s3_mode.
s3_beep is for debugging; it makes the PC's speaker beep
as soon as the kernel's real-mode entry point is called.
old_ordering causes the ACPI 1.0 ordering of the _PTS
control method, wrt putting devices into low power
states, to be enforced (the ACPI 2.0 ordering of _PTS is
used by default).
acpi_sci= [HW,ACPI] ACPI System Control Interrupt trigger mode
Format: { level | edge | high | low }
@ -1202,7 +1206,7 @@ and is between 256 and 4096 characters. It is defined in the file
or
memmap=0x10000$0x18690000
memtest= [KNL,X86_64] Enable memtest
memtest= [KNL,X86] Enable memtest
Format: <integer>
range: 0,4 : pattern number
default : 0 <disable>
@ -1275,6 +1279,13 @@ and is between 256 and 4096 characters. It is defined in the file
This usage is only documented in each driver source
file if at all.
nf_conntrack.acct=
[NETFILTER] Enable connection tracking flow accounting
0 to disable accounting
1 to enable accounting
Default value depends on CONFIG_NF_CT_ACCT that is
going to be removed in 2.6.29.
nfsaddrs= [NFS]
See Documentation/filesystems/nfsroot.txt.
@ -1537,6 +1548,9 @@ and is between 256 and 4096 characters. It is defined in the file
Use with caution as certain devices share
address decoders between ROMs and other
resources.
norom [X86-32,X86_64] Do not assign address space to
expansion ROMs that do not already have
BIOS assigned address ranges.
irqmask=0xMMMM [X86-32] Set a bit mask of IRQs allowed to be
assigned automatically to PCI devices. You can
make the kernel exclude IRQs of your ISA cards
@ -2151,6 +2165,10 @@ and is between 256 and 4096 characters. It is defined in the file
Note that genuine overcurrent events won't be
reported either.
unknown_nmi_panic
[X86-32,X86-64]
Set unknown_nmi_panic=1 early on boot.
usbcore.autosuspend=
[USB] The autosuspend time delay (in seconds) used
for newly-detected USB devices (default 2). This

30
Documentation/md.txt
View File

@ -236,6 +236,11 @@ All md devices contain:
writing the word for the desired state, however some states
cannot be explicitly set, and some transitions are not allowed.
Select/poll works on this file. All changes except between
active_idle and active (which can be frequent and are not
very interesting) are notified. active->active_idle is
reported if the metadata is externally managed.
clear
No devices, no size, no level
Writing is equivalent to STOP_ARRAY ioctl
@ -292,6 +297,10 @@ Each directory contains:
writemostly - device will only be subject to read
requests if there are no other options.
This applies only to raid1 arrays.
blocked - device has failed, metadata is "external",
and the failure hasn't been acknowledged yet.
Writes that would write to this device if
it were not faulty are blocked.
spare - device is working, but not a full member.
This includes spares that are in the process
of being recovered to
@ -301,6 +310,12 @@ Each directory contains:
Writing "remove" removes the device from the array.
Writing "writemostly" sets the writemostly flag.
Writing "-writemostly" clears the writemostly flag.
Writing "blocked" sets the "blocked" flag.
Writing "-blocked" clear the "blocked" flag and allows writes
to complete.
This file responds to select/poll. Any change to 'faulty'
or 'blocked' causes an event.
errors
An approximate count of read errors that have been detected on
@ -332,7 +347,7 @@ Each directory contains:
for storage of data. This will normally be the same as the
component_size. This can be written while assembling an
array. If a value less than the current component_size is
written, component_size will be reduced to this value.
written, it will be rejected.
An active md device will also contain and entry for each active device
@ -381,6 +396,19 @@ also have
'check' and 'repair' will start the appropriate process
providing the current state is 'idle'.
This file responds to select/poll. Any important change in the value
triggers a poll event. Sometimes the value will briefly be
"recover" if a recovery seems to be needed, but cannot be
achieved. In that case, the transition to "recover" isn't
notified, but the transition away is.
degraded
This contains a count of the number of devices by which the
arrays is degraded. So an optimal array with show '0'. A
single failed/missing drive will show '1', etc.
This file responds to select/poll, any increase or decrease
in the count of missing devices will trigger an event.
mismatch_count
When performing 'check' and 'repair', and possibly when
performing 'resync', md will count the number of errors that are

100
Documentation/networking/bonding.txt
View File

@ -289,35 +289,73 @@ downdelay
fail_over_mac
Specifies whether active-backup mode should set all slaves to
the same MAC address (the traditional behavior), or, when
enabled, change the bond's MAC address when changing the
active interface (i.e., fail over the MAC address itself).
the same MAC address at enslavement (the traditional
behavior), or, when enabled, perform special handling of the
bond's MAC address in accordance with the selected policy.
Fail over MAC is useful for devices that cannot ever alter
their MAC address, or for devices that refuse incoming
broadcasts with their own source MAC (which interferes with
the ARP monitor).
Possible values are:
The down side of fail over MAC is that every device on the
network must be updated via gratuitous ARP, vs. just updating
a switch or set of switches (which often takes place for any
traffic, not just ARP traffic, if the switch snoops incoming
traffic to update its tables) for the traditional method. If
the gratuitous ARP is lost, communication may be disrupted.
none or 0
When fail over MAC is used in conjuction with the mii monitor,
devices which assert link up prior to being able to actually
transmit and receive are particularly susecptible to loss of
the gratuitous ARP, and an appropriate updelay setting may be
required.
This setting disables fail_over_mac, and causes
bonding to set all slaves of an active-backup bond to
the same MAC address at enslavement time. This is the
default.
A value of 0 disables fail over MAC, and is the default. A
value of 1 enables fail over MAC. This option is enabled
automatically if the first slave added cannot change its MAC
address. This option may be modified via sysfs only when no
slaves are present in the bond.
active or 1
This option was added in bonding version 3.2.0.
The "active" fail_over_mac policy indicates that the
MAC address of the bond should always be the MAC
address of the currently active slave. The MAC
address of the slaves is not changed; instead, the MAC
address of the bond changes during a failover.
This policy is useful for devices that cannot ever
alter their MAC address, or for devices that refuse
incoming broadcasts with their own source MAC (which
interferes with the ARP monitor).
The down side of this policy is that every device on
the network must be updated via gratuitous ARP,
vs. just updating a switch or set of switches (which
often takes place for any traffic, not just ARP
traffic, if the switch snoops incoming traffic to
update its tables) for the traditional method. If the
gratuitous ARP is lost, communication may be
disrupted.
When this policy is used in conjuction with the mii
monitor, devices which assert link up prior to being
able to actually transmit and receive are particularly
susecptible to loss of the gratuitous ARP, and an
appropriate updelay setting may be required.
follow or 2
The "follow" fail_over_mac policy causes the MAC
address of the bond to be selected normally (normally
the MAC address of the first slave added to the bond).
However, the second and subsequent slaves are not set
to this MAC address while they are in a backup role; a
slave is programmed with the bond's MAC address at
failover time (and the formerly active slave receives
the newly active slave's MAC address).
This policy is useful for multiport devices that
either become confused or incur a performance penalty
when multiple ports are programmed with the same MAC
address.
The default policy is none, unless the first slave cannot
change its MAC address, in which case the active policy is
selected by default.
This option may be modified via sysfs only when no slaves are
present in the bond.
This option was added in bonding version 3.2.0. The "follow"
policy was added in bonding version 3.3.0.
lacp_rate
@ -338,7 +376,8 @@ max_bonds
Specifies the number of bonding devices to create for this
instance of the bonding driver. E.g., if max_bonds is 3, and
the bonding driver is not already loaded, then bond0, bond1
and bond2 will be created. The default value is 1.
and bond2 will be created. The default value is 1. Specifying
a value of 0 will load bonding, but will not create any devices.
miimon
@ -501,6 +540,17 @@ mode
swapped with the new curr_active_slave that was
chosen.
num_grat_arp
Specifies the number of gratuitous ARPs to be issued after a
failover event. One gratuitous ARP is issued immediately after
the failover, subsequent ARPs are sent at a rate of one per link
monitor interval (arp_interval or miimon, whichever is active).
The valid range is 0 - 255; the default value is 1. This option
affects only the active-backup mode. This option was added for
bonding version 3.3.0.
primary
A string (eth0, eth2, etc) specifying which slave is the

167
Documentation/networking/dm9000.txt Normal file
View File

@ -0,0 +1,167 @@
DM9000 Network driver
=====================
Copyright 2008 Simtec Electronics,
Ben Dooks <ben@simtec.co.uk> <ben-linux@fluff.org>
Introduction
------------
This file describes how to use the DM9000 platform-device based network driver
that is contained in the files drivers/net/dm9000.c and drivers/net/dm9000.h.
The driver supports three DM9000 variants, the DM9000E which is the first chip
supported as well as the newer DM9000A and DM9000B devices. It is currently
maintained and tested by Ben Dooks, who should be CC: to any patches for this
driver.
Defining the platform device
----------------------------
The minimum set of resources attached to the platform device are as follows:
1) The physical address of the address register
2) The physical address of the data register
3) The IRQ line the device's interrupt pin is connected to.
These resources should be specified in that order, as the ordering of the
two address regions is important (the driver expects these to be address
and then data).
An example from arch/arm/mach-s3c2410/mach-bast.c is:
static struct resource bast_dm9k_resource[] = {
[0] = {
.start = S3C2410_CS5 + BAST_PA_DM9000,
.end = S3C2410_CS5 + BAST_PA_DM9000 + 3,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = S3C2410_CS5 + BAST_PA_DM9000 + 0x40,
.end = S3C2410_CS5 + BAST_PA_DM9000 + 0x40 + 0x3f,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_DM9000,
.end = IRQ_DM9000,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
}
};
static struct platform_device bast_device_dm9k = {
.name = "dm9000",
.id = 0,
.num_resources = ARRAY_SIZE(bast_dm9k_resource),
.resource = bast_dm9k_resource,
};
Note the setting of the IRQ trigger flag in bast_dm9k_resource[2].flags,
as this will generate a warning if it is not present. The trigger from
the flags field will be passed to request_irq() when registering the IRQ
handler to ensure that the IRQ is setup correctly.
This shows a typical platform device, without the optional configuration
platform data supplied. The next example uses the same resources, but adds
the optional platform data to pass extra configuration data:
static struct dm9000_plat_data bast_dm9k_platdata = {
.flags = DM9000_PLATF_16BITONLY,
};
static struct platform_device bast_device_dm9k = {
.name = "dm9000",
.id = 0,
.num_resources = ARRAY_SIZE(bast_dm9k_resource),
.resource = bast_dm9k_resource,
.dev = {
.platform_data = &bast_dm9k_platdata,
}
};
The platform data is defined in include/linux/dm9000.h and described below.
Platform data
-------------
Extra platform data for the DM9000 can describe the IO bus width to the
device, whether or not an external PHY is attached to the device and
the availability of an external configuration EEPROM.
The flags for the platform data .flags field are as follows:
DM9000_PLATF_8BITONLY
The IO should be done with 8bit operations.
DM9000_PLATF_16BITONLY
The IO should be done with 16bit operations.
DM9000_PLATF_32BITONLY
The IO should be done with 32bit operations.
DM9000_PLATF_EXT_PHY
The chip is connected to an external PHY.
DM9000_PLATF_NO_EEPROM
This can be used to signify that the board does not have an
EEPROM, or that the EEPROM should be hidden from the user.
DM9000_PLATF_SIMPLE_PHY
Switch to using the simpler PHY polling method which does not
try and read the MII PHY state regularly. This is only available
when using the internal PHY. See the section on link state polling
for more information.
The config symbol DM9000_FORCE_SIMPLE_PHY_POLL, Kconfig entry
"Force simple NSR based PHY polling" allows this flag to be
forced on at build time.
PHY Link state polling
----------------------
The driver keeps track of the link state and informs the network core
about link (carrier) availablilty. This is managed by several methods
depending on the version of the chip and on which PHY is being used.
For the internal PHY, the original (and currently default) method is
to read the MII state, either when the status changes if we have the
necessary interrupt support in the chip or every two seconds via a
periodic timer.
To reduce the overhead for the internal PHY, there is now the option
of using the DM9000_FORCE_SIMPLE_PHY_POLL config, or DM9000_PLATF_SIMPLE_PHY
platform data option to read the summary information without the
expensive MII accesses. This method is faster, but does not print
as much information.
When using an external PHY, the driver currently has to poll the MII
link status as there is no method for getting an interrupt on link change.
DM9000A / DM9000B
-----------------
These chips are functionally similar to the DM9000E and are supported easily
by the same driver. The features are:
1) Interrupt on internal PHY state change. This means that the periodic
polling of the PHY status may be disabled on these devices when using
the internal PHY.
2) TCP/UDP checksum offloading, which the driver does not currently support.
ethtool
-------
The driver supports the ethtool interface for access to the driver
state information, the PHY state and the EEPROM.

21
Documentation/networking/ip-sysctl.txt
View File

@ -551,8 +551,9 @@ icmp_echo_ignore_broadcasts - BOOLEAN
icmp_ratelimit - INTEGER
Limit the maximal rates for sending ICMP packets whose type matches
icmp_ratemask (see below) to specific targets.
0 to disable any limiting, otherwise the maximal rate in jiffies(1)
Default: 100
0 to disable any limiting,
otherwise the minimal space between responses in milliseconds.
Default: 1000
icmp_ratemask - INTEGER
Mask made of ICMP types for which rates are being limited.
@ -1023,11 +1024,23 @@ max_addresses - INTEGER
autoconfigured addresses.
Default: 16
disable_ipv6 - BOOLEAN
Disable IPv6 operation.
Default: FALSE (enable IPv6 operation)
accept_dad - INTEGER
Whether to accept DAD (Duplicate Address Detection).
0: Disable DAD
1: Enable DAD (default)
2: Enable DAD, and disable IPv6 operation if MAC-based duplicate
link-local address has been found.
icmp/*:
ratelimit - INTEGER
Limit the maximal rates for sending ICMPv6 packets.
0 to disable any limiting, otherwise the maximal rate in jiffies(1)
Default: 100
0 to disable any limiting,
otherwise the minimal space between responses in milliseconds.
Default: 1000
IPv6 Update by:

419
Documentation/networking/ixgb.txt
View File

@ -1,7 +1,7 @@
Linux* Base Driver for the Intel(R) PRO/10GbE Family of Adapters
================================================================
Linux Base Driver for 10 Gigabit Intel(R) Network Connection
=============================================================
November 17, 2004
October 9, 2007
Contents
@ -9,94 +9,151 @@ Contents
- In This Release
- Identifying Your Adapter
- Building and Installation
- Command Line Parameters
- Improving Performance
- Additional Configurations
- Known Issues/Troubleshooting
- Support
In This Release
===============
This file describes the Linux* Base Driver for the Intel(R) PRO/10GbE Family
of Adapters, version 1.0.x.
This file describes the ixgb Linux Base Driver for the 10 Gigabit Intel(R)
Network Connection. This driver includes support for Itanium(R)2-based
systems.
For questions related to hardware requirements, refer to the documentation
supplied with your 10 Gigabit adapter. All hardware requirements listed apply
to use with Linux.
The following features are available in this kernel:
- 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.
For questions related to hardware requirements, refer to the documentation
supplied with your Intel PRO/10GbE adapter. All hardware requirements listed
apply to use with Linux.
Identifying Your Adapter
========================
To verify your Intel adapter is supported, find the board ID number on the
adapter. Look for a label that has a barcode and a number in the format
A12345-001.
The following Intel network adapters are compatible with the drivers in this
release:
Use the above information and the Adapter & Driver ID Guide at:
Controller Adapter Name Physical Layer
---------- ------------ --------------
82597EX Intel(R) PRO/10GbE LR/SR/CX4 10G Base-LR (1310 nm optical fiber)
Server Adapters 10G Base-SR (850 nm optical fiber)
10G Base-CX4(twin-axial copper cabling)
http://support.intel.com/support/network/adapter/pro100/21397.htm
For more information on how to identify your adapter, go to the Adapter &
Driver ID Guide at:
For the latest Intel network drivers for Linux, go to:
http://support.intel.com/support/network/sb/CS-012904.htm
Building and Installation
=========================
select m for "Intel(R) PRO/10GbE support" located at:
Location:
-> Device Drivers
-> Network device support (NETDEVICES [=y])
-> Ethernet (10000 Mbit) (NETDEV_10000 [=y])
1. make modules && make modules_install
2. Load the module:
    modprobe ixgb <parameter>=<value>
The insmod command can be used if the full
path to the driver module is specified. For example:
insmod /lib/modules/<KERNEL VERSION>/kernel/drivers/net/ixgb/ixgb.ko
With 2.6 based kernels also make sure that older ixgb drivers are
removed from the kernel, before loading the new module:
rmmod ixgb; modprobe ixgb
3. Assign an IP address to the interface by entering the following, where
x is the interface number:
ifconfig ethx <IP_address>
4. Verify that the interface works. Enter the following, where <IP_address>
is the IP address for another machine on the same subnet as the interface
that is being tested:
ping <IP_address>
http://downloadfinder.intel.com/scripts-df/support_intel.asp
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 or insmod command
using this syntax:
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 ixgb [<option>=<VAL1>,<VAL2>,...]
insmod ixgb [<option>=<VAL1>,<VAL2>,...]
For example, with two 10GbE PCI adapters, entering:
For example, with two PRO/10GbE PCI adapters, entering:
modprobe ixgb TxDescriptors=80,128
insmod ixgb TxDescriptors=80,128
loads the ixgb driver with 80 TX resources for the first adapter and 128 TX
loads the ixgb driver with 80 TX resources for the first adapter and 128 TX
resources for the second adapter.
The default value for each parameter is generally the recommended setting,
unless otherwise noted. Also, if the driver is statically built into the
kernel, the driver is loaded with the default values for all the parameters.
Ethtool can be used to change some of the parameters at runtime.
unless otherwise noted.
FlowControl
Valid Range: 0-3 (0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx)
Default: Read from the EEPROM
If EEPROM is not detected, default is 3
This parameter controls the automatic generation(Tx) and response(Rx) to
Ethernet PAUSE frames.
If EEPROM is not detected, default is 1
This parameter controls the automatic generation(Tx) and response(Rx) to
Ethernet PAUSE frames. There are hardware bugs associated with enabling
Tx flow control so beware.
RxDescriptors
Valid Range: 64-512
Default Value: 512
This value is the number of receive descriptors allocated by the driver.
Increasing this value allows the driver to buffer more incoming packets.
Each descriptor is 16 bytes. A receive buffer is also allocated for
each descriptor and can be either 2048, 4056, 8192, or 16384 bytes,
depending on the MTU setting. When the MTU size is 1500 or less, the
This value is the number of receive descriptors allocated by the driver.
Increasing this value allows the driver to buffer more incoming packets.
Each descriptor is 16 bytes. A receive buffer is also allocated for
each descriptor and can be either 2048, 4056, 8192, or 16384 bytes,
depending on the MTU setting. When the MTU size is 1500 or less, the
receive buffer size is 2048 bytes. When the MTU is greater than 1500 the
receive buffer size will be either 4056, 8192, or 16384 bytes. The
receive buffer size will be either 4056, 8192, or 16384 bytes. The
maximum MTU size is 16114.
RxIntDelay
Valid Range: 0-65535 (0=off)
Default Value: 6
This value delays the generation of receive interrupts in units of
0.8192 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
Default Value: 72
This value delays the generation of receive interrupts in units of
0.8192 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.
TxDescriptors
Valid Range: 64-4096
Default Value: 256
This value is the number of transmit descriptors allocated by the driver.
Increasing this value allows the driver to queue more transmits. Each
Increasing this value allows the driver to queue more transmits. Each
descriptor is 16 bytes.
XsumRX
@ -105,51 +162,49 @@ 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.
XsumTX
Valid Range: 0-1
Default Value: 1
A value of '1' indicates that the driver should enable IP checksum
offload for transmitted packets (both UDP and TCP) to the adapter
hardware.
Improving Performance
=====================
With the Intel PRO/10 GbE adapter, the default Linux configuration will very
likely limit the total available throughput artificially. There is a set of
things that when applied together increase the ability of Linux to transmit
and receive data. The following enhancements were originally acquired from
settings published at http://www.spec.org/web99 for various submitted results
using Linux.
With the 10 Gigabit server adapters, the default Linux configuration will
very likely limit the total available throughput artificially. There is a set
of configuration changes that, when applied together, will increase the ability
of Linux to transmit and receive data. The following enhancements were
originally acquired from settings published at http://www.spec.org/web99/ for
various submitted results using Linux.
NOTE: These changes are only suggestions, and serve as a starting point for
tuning your network performance.
NOTE: These changes are only suggestions, and serve as a starting point for
tuning your network performance.
The changes are made in three major ways, listed in order of greatest effect:
- Use ifconfig to modify the mtu (maximum transmission unit) and the txqueuelen
- Use ifconfig to modify the mtu (maximum transmission unit) and the txqueuelen
parameter.
- Use sysctl to modify /proc parameters (essentially kernel tuning)
- Use setpci to modify the MMRBC field in PCI-X configuration space to increase
- Use setpci to modify the MMRBC field in PCI-X configuration space to increase
transmit burst lengths on the bus.
NOTE: setpci modifies the adapter's configuration registers to allow it to read
up to 4k bytes at a time (for transmits). However, for some systems the
behavior after modifying this register may be undefined (possibly errors of some
kind). A power-cycle, hard reset or explicitly setting the e6 register back to
22 (setpci -d 8086:1048 e6.b=22) may be required to get back to a stable
configuration.
NOTE: setpci modifies the adapter's configuration registers to allow it to read
up to 4k bytes at a time (for transmits). However, for some systems the
behavior after modifying this register may be undefined (possibly errors of
some kind). A power-cycle, hard reset or explicitly setting the e6 register
back to 22 (setpci -d 8086:1a48 e6.b=22) may be required to get back to a
stable configuration.
- COPY these lines and paste them into ixgb_perf.sh:
#!/bin/bash
echo "configuring network performance , edit this file to change the interface"
echo "configuring network performance , edit this file to change the interface
or device ID of 10GbE card"
# set mmrbc to 4k reads, modify only Intel 10GbE device IDs
setpci -d 8086:1048 e6.b=2e
# set the MTU (max transmission unit) - it requires your switch and clients to change too!
# replace 1a48 with appropriate 10GbE device's ID installed on the system,
# if needed.
setpci -d 8086:1a48 e6.b=2e
# set the MTU (max transmission unit) - it requires your switch and clients
# to change as well.
# set the txqueuelen
# your ixgb adapter should be loaded as eth1 for this to work, change if needed
ifconfig eth1 mtu 9000 txqueuelen 1000 up
# call the sysctl utility to modify /proc/sys entries
sysctl -p ./sysctl_ixgb.conf
# call the sysctl utility to modify /proc/sys entries
sysctl -p ./sysctl_ixgb.conf
- END ixgb_perf.sh
- COPY these lines and paste them into sysctl_ixgb.conf:
@ -159,54 +214,220 @@ sysctl -p ./sysctl_ixgb.conf
# several network benchmark tests, your mileage may vary
### IPV4 specific settings
net.ipv4.tcp_timestamps = 0 # turns TCP timestamp support off, default 1, reduces CPU use
net.ipv4.tcp_sack = 0 # turn SACK support off, default on
# on systems with a VERY fast bus -> memory interface this is the big gainer
net.ipv4.tcp_rmem = 10000000 10000000 10000000 # sets min/default/max TCP read buffer, default 4096 87380 174760
net.ipv4.tcp_wmem = 10000000 10000000 10000000 # sets min/pressure/max TCP write buffer, default 4096 16384 131072
net.ipv4.tcp_mem = 10000000 10000000 10000000 # sets min/pressure/max TCP buffer space, default 31744 32256 32768
# turn TCP timestamp support off, default 1, reduces CPU use
net.ipv4.tcp_timestamps = 0
# turn SACK support off, default on
# on systems with a VERY fast bus -> memory interface this is the big gainer
net.ipv4.tcp_sack = 0
# set min/default/max TCP read buffer, default 4096 87380 174760
net.ipv4.tcp_rmem = 10000000 10000000 10000000
# set min/pressure/max TCP write buffer, default 4096 16384 131072
net.ipv4.tcp_wmem = 10000000 10000000 10000000
# set min/pressure/max TCP buffer space, default 31744 32256 32768
net.ipv4.tcp_mem = 10000000 10000000 10000000
### CORE settings (mostly for socket and UDP effect)
net.core.rmem_max = 524287 # maximum receive socket buffer size, default 131071
net.core.wmem_max = 524287 # maximum send socket buffer size, default 131071
net.core.rmem_default = 524287 # default receive socket buffer size, default 65535
net.core.wmem_default = 524287 # default send socket buffer size, default 65535
net.core.optmem_max = 524287 # maximum amount of option memory buffers, default 10240
net.core.netdev_max_backlog = 300000 # number of unprocessed input packets before kernel starts dropping them, default 300
# set maximum receive socket buffer size, default 131071
net.core.rmem_max = 524287
# set maximum send socket buffer size, default 131071
net.core.wmem_max = 524287
# set default receive socket buffer size, default 65535
net.core.rmem_default = 524287
# set default send socket buffer size, default 65535
net.core.wmem_default = 524287
# set maximum amount of option memory buffers, default 10240
net.core.optmem_max = 524287
# set number of unprocessed input packets before kernel starts dropping them; default 300
net.core.netdev_max_backlog = 300000
- END sysctl_ixgb.conf
Edit the ixgb_perf.sh script if necessary to change eth1 to whatever interface
your ixgb driver is using.
Edit the ixgb_perf.sh script if necessary to change eth1 to whatever interface
your ixgb driver is using and/or replace '1a48' with appropriate 10GbE device's
ID installed on the system.
NOTE: Unless these scripts are added to the boot process, these changes will
only last only until the next system reboot.
NOTE: Unless these scripts are added to the boot process, these changes will
only last only until the next system reboot.
Resolving Slow UDP Traffic
--------------------------
If your server does not seem to be able to receive UDP traffic as fast as it
can receive TCP traffic, it could be because Linux, by default, does not set
the network stack buffers as large as they need to be to support high UDP
transfer rates. One way to alleviate this problem is to allow more memory to
be used by the IP stack to store incoming data.
If your server does not seem to be able to receive UDP traffic as fast as it
can receive TCP traffic, it could be because Linux, by default, does not set
the network stack buffers as large as they need to be to support high UDP
transfer rates. One way to alleviate this problem is to allow more memory to
be used by the IP stack to store incoming data.
For instance, use the commands:
For instance, use the commands:
sysctl -w net.core.rmem_max=262143
and
sysctl -w net.core.rmem_default=262143
to increase the read buffer memory max and default to 262143 (256k - 1) from
defaults of max=131071 (128k - 1) and default=65535 (64k - 1). These variables
will increase the amount of memory used by the network stack for receives, and
to increase the read buffer memory max and default to 262143 (256k - 1) from
defaults of max=131071 (128k - 1) and default=65535 (64k - 1). These variables
will increase the amount of memory used by the network stack for receives, and
can be increased significantly more if necessary for your application.
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/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 10GbE Family of
Adapters is ixgb.
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
------------
The driver supports Jumbo Frames for all adapters. Jumbo Frames support is
enabled by changing the MTU to a value larger than the default of 1500.
The maximum value for the MTU is 16114. Use the ifconfig command to
increase the MTU size. For example:
ifconfig ethx mtu 9000 up
The maximum MTU setting for Jumbo Frames is 16114. This value coincides
with the maximum Jumbo Frames size of 16128.
Ethtool
-------
The driver utilizes the ethtool interface for driver configuration and
diagnostics, as well as displaying statistical information. Ethtool
version 1.6 or later is required for this functionality.
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
to the latest version.
NAPI
----
NAPI (Rx polling mode) is supported in the ixgb driver. NAPI is enabled
or disabled based on the configuration of the kernel. see CONFIG_IXGB_NAPI
See www.cyberus.ca/~hadi/usenix-paper.tgz for more information on NAPI.
Known Issues/Troubleshooting
============================
NOTE: After installing the driver, if your Intel Network Connection is not
working, verify in the "In This Release" section of the readme that you have
installed the correct driver.
Intel(R) PRO/10GbE CX4 Server Adapter Cable Interoperability Issue with
Fujitsu XENPAK Module in SmartBits Chassis
---------------------------------------------------------------------
Excessive CRC errors may be observed if the Intel(R) PRO/10GbE CX4
Server adapter is connected to a Fujitsu XENPAK CX4 module in a SmartBits
chassis using 15 m/24AWG cable assemblies manufactured by Fujitsu or Leoni.
The CRC errors may be received either by the Intel(R) PRO/10GbE CX4
Server adapter or the SmartBits. If this situation occurs using a different
cable assembly may resolve the issue.
CX4 Server Adapter Cable Interoperability Issues with HP Procurve 3400cl
Switch Port
------------------------------------------------------------------------
Excessive CRC errors may be observed if the Intel(R) PRO/10GbE CX4 Server
adapter is connected to an HP Procurve 3400cl switch port using short cables
(1 m or shorter). If this situation occurs, using a longer cable may resolve
the issue.
Excessive CRC errors may be observed using Fujitsu 24AWG cable assemblies that
Are 10 m or longer or where using a Leoni 15 m/24AWG cable assembly. The CRC
errors may be received either by the CX4 Server adapter or at the switch. If
this situation occurs, using a different cable assembly may resolve the issue.
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.
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, do either of the following:
- Turn on ARP filtering by entering:
echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter
- Install the interfaces in separate broadcast domains - either in
different switches or in a switch partitioned to VLANs.
UDP Stress Test Dropped Packet Issue
--------------------------------------
Under small packets UDP stress test with 10GbE driver, the Linux system
may drop UDP packets due to the fullness of socket buffers. You may want
to change the driver's Flow Control variables to the minimum value for
controlling packet reception.
Tx Hangs Possible Under Stress
------------------------------
Under stress conditions, if TX hangs occur, turning off TSO
"ethtool -K eth0 tso off" may resolve the problem.
Support
=======
For general information and support, go to the Intel support website at:
For general information, go to the Intel support website at:
http://support.intel.com
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 linux.nics@intel.com.
kernel with a supported adapter, email the specific information related
to the issue to e1000-devel@lists.sf.net

67
Documentation/networking/mac80211_hwsim/README Normal file
View File

@ -0,0 +1,67 @@
mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
Copyright (c) 2008, Jouni Malinen <j@w1.fi>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
Introduction
mac80211_hwsim is a Linux kernel module that can be used to simulate
arbitrary number of IEEE 802.11 radios for mac80211. It can be used to
test most of the mac80211 functionality and user space tools (e.g.,
hostapd and wpa_supplicant) in a way that matches very closely with
the normal case of using real WLAN hardware. From the mac80211 view
point, mac80211_hwsim is yet another hardware driver, i.e., no changes
to mac80211 are needed to use this testing tool.
The main goal for mac80211_hwsim is to make it easier for developers
to test their code and work with new features to mac80211, hostapd,
and wpa_supplicant. The simulated radios do not have the limitations
of real hardware, so it is easy to generate an arbitrary test setup
and always reproduce the same setup for future tests. In addition,
since all radio operation is simulated, any channel can be used in
tests regardless of regulatory rules.
mac80211_hwsim kernel module has a parameter 'radios' that can be used
to select how many radios are simulated (default 2). This allows
configuration of both very simply setups (e.g., just a single access
point and a station) or large scale tests (multiple access points with
hundreds of stations).
mac80211_hwsim works by tracking the current channel of each virtual
radio and copying all transmitted frames to all other radios that are
currently enabled and on the same channel as the transmitting
radio. Software encryption in mac80211 is used so that the frames are
actually encrypted over the virtual air interface to allow more
complete testing of encryption.
A global monitoring netdev, hwsim#, is created independent of
mac80211. This interface can be used to monitor all transmitted frames
regardless of channel.
Simple example
This example shows how to use mac80211_hwsim to simulate two radios:
one to act as an access point and the other as a station that
associates with the AP. hostapd and wpa_supplicant are used to take
care of WPA2-PSK authentication. In addition, hostapd is also
processing access point side of association.
Please note that the current Linux kernel does not enable AP mode, so a
simple patch is needed to enable AP mode selection:
http://johannes.sipsolutions.net/patches/kernel/all/LATEST/006-allow-ap-vlan-modes.patch
# Build mac80211_hwsim as part of kernel configuration
# Load the module
modprobe mac80211_hwsim
# Run hostapd (AP) for wlan0
hostapd hostapd.conf
# Run wpa_supplicant (station) for wlan1
wpa_supplicant -Dwext -iwlan1 -c wpa_supplicant.conf

11
Documentation/networking/mac80211_hwsim/hostapd.conf Normal file
View File

@ -0,0 +1,11 @@
interface=wlan0
driver=nl80211
hw_mode=g
channel=1
ssid=mac80211 test
wpa=2
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
wpa_passphrase=12345678

10
Documentation/networking/mac80211_hwsim/wpa_supplicant.conf Normal file
View File

@ -0,0 +1,10 @@
ctrl_interface=/var/run/wpa_supplicant
network={
ssid="mac80211 test"
psk="12345678"
key_mgmt=WPA-PSK
proto=WPA2
pairwise=CCMP
group=CCMP
}

90
Documentation/networking/multiqueue.txt
View File

@ -3,19 +3,11 @@
===========================================
Section 1: Base driver requirements for implementing multiqueue support
Section 2: Qdisc support for multiqueue devices
Section 3: Brief howto using PRIO or RR for multiqueue devices
Intro: Kernel support for multiqueue devices
---------------------------------------------------------
Kernel support for multiqueue devices is only an API that is presented to the
netdevice layer for base drivers to implement. This feature is part of the
core networking stack, and all network devices will be running on the
multiqueue-aware stack. If a base driver only has one queue, then these
changes are transparent to that driver.
Kernel support for multiqueue devices is always present.
Section 1: Base driver requirements for implementing multiqueue support
-----------------------------------------------------------------------
@ -32,84 +24,4 @@ netif_{start|stop|wake}_subqueue() functions to manage each queue while the
device is still operational. netdev->queue_lock is still used when the device
comes online or when it's completely shut down (unregister_netdev(), etc.).
Finally, the base driver should indicate that it is a multiqueue device. The
feature flag NETIF_F_MULTI_QUEUE should be added to the netdev->features
bitmap on device initialization. Below is an example from e1000:
#ifdef CONFIG_E1000_MQ
if ( (adapter->hw.mac.type == e1000_82571) ||
(adapter->hw.mac.type == e1000_82572) ||
(adapter->hw.mac.type == e1000_80003es2lan))
netdev->features |= NETIF_F_MULTI_QUEUE;
#endif
Section 2: Qdisc support for multiqueue devices
-----------------------------------------------
Currently two qdiscs support multiqueue devices. A new round-robin qdisc,
sch_rr, and sch_prio. The qdisc is responsible for classifying the skb's to
bands and queues, and will store the queue mapping into skb->queue_mapping.
Use this field in the base driver to determine which queue to send the skb
to.
sch_rr has been added for hardware that doesn't want scheduling policies from
software, so it's a straight round-robin qdisc. It uses the same syntax and
classification priomap that sch_prio uses, so it should be intuitive to
configure for people who've used sch_prio.
In order to utilitize the multiqueue features of the qdiscs, the network
device layer needs to enable multiple queue support. This can be done by
selecting NETDEVICES_MULTIQUEUE under Drivers.
The PRIO qdisc naturally plugs into a multiqueue device. If
NETDEVICES_MULTIQUEUE is selected, then on qdisc load, the number of
bands requested is compared to the number of queues on the hardware. If they
are equal, it sets a one-to-one mapping up between the queues and bands. If
they're not equal, it will not load the qdisc. This is the same behavior
for RR. Once the association is made, any skb that is classified will have
skb->queue_mapping set, which will allow the driver to properly queue skb's
to multiple queues.
Section 3: Brief howto using PRIO and RR for multiqueue devices
---------------------------------------------------------------
The userspace command 'tc,' part of the iproute2 package, is used to configure
qdiscs. To add the PRIO qdisc to your network device, assuming the device is
called eth0, run the following command:
# tc qdisc add dev eth0 root handle 1: prio bands 4 multiqueue
This will create 4 bands, 0 being highest priority, and associate those bands
to the queues on your NIC. Assuming eth0 has 4 Tx queues, the band mapping
would look like:
band 0 => queue 0
band 1 => queue 1
band 2 => queue 2
band 3 => queue 3
Traffic will begin flowing through each queue if your TOS values are assigning
traffic across the various bands. For example, ssh traffic will always try to
go out band 0 based on TOS -> Linux priority conversion (realtime traffic),
so it will be sent out queue 0. ICMP traffic (pings) fall into the "normal"
traffic classification, which is band 1. Therefore pings will be send out
queue 1 on the NIC.
Note the use of the multiqueue keyword. This is only in versions of iproute2
that support multiqueue networking devices; if this is omitted when loading
a qdisc onto a multiqueue device, the qdisc will load and operate the same
if it were loaded onto a single-queue device (i.e. - sends all traffic to
queue 0).
Another alternative to multiqueue band allocation can be done by using the
multiqueue option and specify 0 bands. If this is the case, the qdisc will
allocate the number of bands to equal the number of queues that the device
reports, and bring the qdisc online.
The behavior of tc filters remains the same, where it will override TOS priority
classification.
Author: Peter P. Waskiewicz Jr. <peter.p.waskiewicz.jr@intel.com>

7
Documentation/networking/s2io.txt
View File

@ -52,13 +52,10 @@ d. MSI/MSI-X. Can be enabled on platforms which support this feature
(IA64, Xeon) resulting in noticeable performance improvement(upto 7%
on certain platforms).
e. NAPI. Compile-time option(CONFIG_S2IO_NAPI) for better Rx interrupt
moderation.
f. Statistics. Comprehensive MAC-level and software statistics displayed
e. Statistics. Comprehensive MAC-level and software statistics displayed
using "ethtool -S" option.
g. Multi-FIFO/Ring. Supports up to 8 transmit queues and receive rings,
f. Multi-FIFO/Ring. Supports up to 8 transmit queues and receive rings,
with multiple steering options.
4. Command line parameters

78
Documentation/powerpc/booting-without-of.txt
View File

@ -41,12 +41,24 @@ Table of Contents
VI - System-on-a-chip devices and nodes
1) Defining child nodes of an SOC
2) Representing devices without a current OF specification
a) PHY nodes
b) Interrupt controllers
c) CFI or JEDEC memory-mapped NOR flash
d) 4xx/Axon EMAC ethernet nodes
e) Xilinx IP cores
f) USB EHCI controllers
a) MDIO IO device
b) Gianfar-compatible ethernet nodes
c) PHY nodes
d) Interrupt controllers
e) I2C
f) Freescale SOC USB controllers
g) Freescale SOC SEC Security Engines
h) Board Control and Status (BCSR)
i) Freescale QUICC Engine module (QE)
j) CFI or JEDEC memory-mapped NOR flash
k) Global Utilities Block
l) Freescale Communications Processor Module
m) Chipselect/Local Bus
n) 4xx/Axon EMAC ethernet nodes
o) Xilinx IP cores
p) Freescale Synchronous Serial Interface
q) USB EHCI controllers
r) MDIO on GPIOs
VII - Marvell Discovery mv64[345]6x System Controller chips
1) The /system-controller node
@ -1817,6 +1829,60 @@ platforms are moved over to use the flattened-device-tree model.
big-endian;
};
r) Freescale Display Interface Unit
The Freescale DIU is a LCD controller, with proper hardware, it can also
drive DVI monitors.
Required properties:
- compatible : should be "fsl-diu".
- reg : should contain at least address and length of the DIU register
set.
- Interrupts : one DIU interrupt should be describe here.
Example (MPC8610HPCD)
display@2c000 {
compatible = "fsl,diu";
reg = <0x2c000 100>;
interrupts = <72 2>;
interrupt-parent = <&mpic>;
};
s) Freescale on board FPGA
This is the memory-mapped registers for on board FPGA.
Required properities:
- compatible : should be "fsl,fpga-pixis".
- reg : should contain the address and the lenght of the FPPGA register
set.
Example (MPC8610HPCD)
board-control@e8000000 {
compatible = "fsl,fpga-pixis";
reg = <0xe8000000 32>;
};
r) MDIO on GPIOs
Currently defined compatibles:
- virtual,gpio-mdio
MDC and MDIO lines connected to GPIO controllers are listed in the
gpios property as described in section VIII.1 in the following order:
MDC, MDIO.
Example:
mdio {
compatible = "virtual,mdio-gpio";
#address-cells = <1>;
#size-cells = <0>;
gpios = <&qe_pio_a 11
&qe_pio_c 6>;
};
VII - Marvell Discovery mv64[345]6x System Controller chips
===========================================================

549
Documentation/rfkill.txt
View File

@ -1,89 +1,528 @@
rfkill - RF switch subsystem support
====================================
1 Implementation details
2 Driver support
3 Userspace support
1 Introduction
2 Implementation details
3 Kernel driver guidelines
3.1 wireless device drivers
3.2 platform/switch drivers
3.3 input device drivers
4 Kernel API
5 Userspace support
1. Introduction:
The rfkill switch subsystem exists to add a generic interface to circuitry that
can enable or disable the signal output of a wireless *transmitter* of any
type. By far, the most common use is to disable radio-frequency transmitters.
Note that disabling the signal output means that the the transmitter is to be
made to not emit any energy when "blocked". rfkill is not about blocking data
transmissions, it is about blocking energy emission.
The rfkill subsystem offers support for keys and switches often found on
laptops to enable wireless devices like WiFi and Bluetooth, so that these keys
and switches actually perform an action in all wireless devices of a given type
attached to the system.
The buttons to enable and disable the wireless transmitters are important in
situations where the user is for example using his laptop on a location where
radio-frequency transmitters _must_ be disabled (e.g. airplanes).
Because of this requirement, userspace support for the keys should not be made
mandatory. Because userspace might want to perform some additional smarter
tasks when the key is pressed, rfkill provides userspace the possibility to
take over the task to handle the key events.
===============================================================================
1: Implementation details
2: Implementation details
The rfkill switch subsystem offers support for keys often found on laptops
to enable wireless devices like WiFi and Bluetooth.
The rfkill subsystem is composed of various components: the rfkill class, the
rfkill-input module (an input layer handler), and some specific input layer
events.
This is done by providing the user 3 possibilities:
1 - The rfkill system handles all events; userspace is not aware of events.
2 - The rfkill system handles all events; userspace is informed about the events.
3 - The rfkill system does not handle events; userspace handles all events.
The rfkill class provides kernel drivers with an interface that allows them to
know when they should enable or disable a wireless network device transmitter.
This is enabled by the CONFIG_RFKILL Kconfig option.
The buttons to enable and disable the wireless radios are important in
situations where the user is for example using his laptop on a location where
wireless radios _must_ be disabled (e.g. airplanes).
Because of this requirement, userspace support for the keys should not be
made mandatory. Because userspace might want to perform some additional smarter
tasks when the key is pressed, rfkill still provides userspace the possibility
to take over the task to handle the key events.
The rfkill class support makes sure userspace will be notified of all state
changes on rfkill devices through uevents. It provides a notification chain
for interested parties in the kernel to also get notified of rfkill state
changes in other drivers. It creates several sysfs entries which can be used
by userspace. See section "Userspace support".
The system inside the kernel has been split into 2 separate sections:
1 - RFKILL
2 - RFKILL_INPUT
The rfkill-input module provides the kernel with the ability to implement a
basic response when the user presses a key or button (or toggles a switch)
related to rfkill functionality. It is an in-kernel implementation of default
policy of reacting to rfkill-related input events and neither mandatory nor
required for wireless drivers to operate. It is enabled by the
CONFIG_RFKILL_INPUT Kconfig option.
The first option enables rfkill support and will make sure userspace will
be notified of any events through the input device. It also creates several
sysfs entries which can be used by userspace. See section "Userspace support".
rfkill-input is a rfkill-related events input layer handler. This handler will
listen to all rfkill key events and will change the rfkill state of the
wireless devices accordingly. With this option enabled userspace could either
do nothing or simply perform monitoring tasks.
The second option provides an rfkill input handler. This handler will
listen to all rfkill key events and will toggle the radio accordingly.
With this option enabled userspace could either do nothing or simply
perform monitoring tasks.
The rfkill-input module also provides EPO (emergency power-off) functionality
for all wireless transmitters. This function cannot be overridden, and it is
always active. rfkill EPO is related to *_RFKILL_ALL input layer events.
Important terms for the rfkill subsystem:
In order to avoid confusion, we avoid the term "switch" in rfkill when it is
referring to an electronic control circuit that enables or disables a
transmitter. We reserve it for the physical device a human manipulates
(which is an input device, by the way):
rfkill switch:
A physical device a human manipulates. Its state can be perceived by
the kernel either directly (through a GPIO pin, ACPI GPE) or by its
effect on a rfkill line of a wireless device.
rfkill controller:
A hardware circuit that controls the state of a rfkill line, which a
kernel driver can interact with *to modify* that state (i.e. it has
either write-only or read/write access).
rfkill line:
An input channel (hardware or software) of a wireless device, which
causes a wireless transmitter to stop emitting energy (BLOCK) when it
is active. Point of view is extremely important here: rfkill lines are
always seen from the PoV of a wireless device (and its driver).
soft rfkill line/software rfkill line:
A rfkill line the wireless device driver can directly change the state
of. Related to rfkill_state RFKILL_STATE_SOFT_BLOCKED.
hard rfkill line/hardware rfkill line:
A rfkill line that works fully in hardware or firmware, and that cannot
be overridden by the kernel driver. The hardware device or the
firmware just exports its status to the driver, but it is read-only.
Related to rfkill_state RFKILL_STATE_HARD_BLOCKED.
The enum rfkill_state describes the rfkill state of a transmitter:
When a rfkill line or rfkill controller is in the RFKILL_STATE_UNBLOCKED state,
the wireless transmitter (radio TX circuit for example) is *enabled*. When the
it is in the RFKILL_STATE_SOFT_BLOCKED or RFKILL_STATE_HARD_BLOCKED, the
wireless transmitter is to be *blocked* from operating.
RFKILL_STATE_SOFT_BLOCKED indicates that a call to toggle_radio() can change
that state. RFKILL_STATE_HARD_BLOCKED indicates that a call to toggle_radio()
will not be able to change the state and will return with a suitable error if
attempts are made to set the state to RFKILL_STATE_UNBLOCKED.
RFKILL_STATE_HARD_BLOCKED is used by drivers to signal that the device is
locked in the BLOCKED state by a hardwire rfkill line (typically an input pin
that, when active, forces the transmitter to be disabled) which the driver
CANNOT override.
Full rfkill functionality requires two different subsystems to cooperate: the
input layer and the rfkill class. The input layer issues *commands* to the
entire system requesting that devices registered to the rfkill class change
state. The way this interaction happens is not complex, but it is not obvious
either:
Kernel Input layer:
* Generates KEY_WWAN, KEY_WLAN, KEY_BLUETOOTH, SW_RFKILL_ALL, and
other such events when the user presses certain keys, buttons, or
toggles certain physical switches.
THE INPUT LAYER IS NEVER USED TO PROPAGATE STATUS, NOTIFICATIONS OR THE
KIND OF STUFF AN ON-SCREEN-DISPLAY APPLICATION WOULD REPORT. It is
used to issue *commands* for the system to change behaviour, and these
commands may or may not be carried out by some kernel driver or
userspace application. It follows that doing user feedback based only
on input events is broken, as there is no guarantee that an input event
will be acted upon.
Most wireless communication device drivers implementing rfkill
functionality MUST NOT generate these events, and have no reason to
register themselves with the input layer. Doing otherwise is a common
misconception. There is an API to propagate rfkill status change
information, and it is NOT the input layer.
rfkill class:
* Calls a hook in a driver to effectively change the wireless
transmitter state;
* Keeps track of the wireless transmitter state (with help from
the driver);
* Generates userspace notifications (uevents) and a call to a
notification chain (kernel) when there is a wireless transmitter
state change;
* Connects a wireless communications driver with the common rfkill
control system, which, for example, allows actions such as
"switch all bluetooth devices offline" to be carried out by
userspace or by rfkill-input.
THE RFKILL CLASS NEVER ISSUES INPUT EVENTS. THE RFKILL CLASS DOES
NOT LISTEN TO INPUT EVENTS. NO DRIVER USING THE RFKILL CLASS SHALL
EVER LISTEN TO, OR ACT ON RFKILL INPUT EVENTS. Doing otherwise is
a layering violation.
Most wireless data communication drivers in the kernel have just to
implement the rfkill class API to work properly. Interfacing to the
input layer is not often required (and is very often a *bug*) on
wireless drivers.
Platform drivers often have to attach to the input layer to *issue*
(but never to listen to) rfkill events for rfkill switches, and also to
the rfkill class to export a control interface for the platform rfkill
controllers to the rfkill subsystem. This does NOT mean the rfkill
switch is attached to a rfkill class (doing so is almost always wrong).
It just means the same kernel module is the driver for different
devices (rfkill switches and rfkill controllers).
Userspace input handlers (uevents) or kernel input handlers (rfkill-input):
* Implements the policy of what should happen when one of the input
layer events related to rfkill operation is received.
* Uses the sysfs interface (userspace) or private rfkill API calls
to tell the devices registered with the rfkill class to change
their state (i.e. translates the input layer event into real
action).
* rfkill-input implements EPO by handling EV_SW SW_RFKILL_ALL 0
(power off all transmitters) in a special way: it ignores any
overrides and local state cache and forces all transmitters to the
RFKILL_STATE_SOFT_BLOCKED state (including those which are already
supposed to be BLOCKED). Note that the opposite event (power on all
transmitters) is handled normally.
Userspace uevent handler or kernel platform-specific drivers hooked to the
rfkill notifier chain:
* Taps into the rfkill notifier chain or to KOBJ_CHANGE uevents,
in order to know when a device that is registered with the rfkill
class changes state;
* Issues feedback notifications to the user;
* In the rare platforms where this is required, synthesizes an input
event to command all *OTHER* rfkill devices to also change their
statues when a specific rfkill device changes state.
===============================================================================
3: Kernel driver guidelines
Remember: point-of-view is everything for a driver that connects to the rfkill
subsystem. All the details below must be measured/perceived from the point of
view of the specific driver being modified.
The first thing one needs to know is whether his driver should be talking to
the rfkill class or to the input layer. In rare cases (platform drivers), it
could happen that you need to do both, as platform drivers often handle a
variety of devices in the same driver.
Do not mistake input devices for rfkill controllers. The only type of "rfkill
switch" device that is to be registered with the rfkill class are those
directly controlling the circuits that cause a wireless transmitter to stop
working (or the software equivalent of them), i.e. what we call a rfkill
controller. Every other kind of "rfkill switch" is just an input device and
MUST NOT be registered with the rfkill class.
A driver should register a device with the rfkill class when ALL of the
following conditions are met (they define a rfkill controller):
1. The device is/controls a data communications wireless transmitter;
2. The kernel can interact with the hardware/firmware to CHANGE the wireless
transmitter state (block/unblock TX operation);
3. The transmitter can be made to not emit any energy when "blocked":
rfkill is not about blocking data transmissions, it is about blocking
energy emission;
A driver should register a device with the input subsystem to issue
rfkill-related events (KEY_WLAN, KEY_BLUETOOTH, KEY_WWAN, KEY_WIMAX,
SW_RFKILL_ALL, etc) when ALL of the folowing conditions are met:
1. It is directly related to some physical device the user interacts with, to
command the O.S./firmware/hardware to enable/disable a data communications
wireless transmitter.
Examples of the physical device are: buttons, keys and switches the user
will press/touch/slide/switch to enable or disable the wireless
communication device.
2. It is NOT slaved to another device, i.e. there is no other device that
issues rfkill-related input events in preference to this one.
Please refer to the corner cases and examples section for more details.
When in doubt, do not issue input events. For drivers that should generate
input events in some platforms, but not in others (e.g. b43), the best solution
is to NEVER generate input events in the first place. That work should be
deferred to a platform-specific kernel module (which will know when to generate
events through the rfkill notifier chain) or to userspace. This avoids the
usual maintenance problems with DMI whitelisting.
Corner cases and examples:
====================================
2: Driver support
To build a driver with rfkill subsystem support, the driver should
depend on the Kconfig symbol RFKILL; it should _not_ depend on
RKFILL_INPUT.
1. If the device is an input device that, because of hardware or firmware,
causes wireless transmitters to be blocked regardless of the kernel's will, it
is still just an input device, and NOT to be registered with the rfkill class.
Unless key events trigger an interrupt to which the driver listens, polling
will be required to determine the key state changes. For this the input
layer providers the input-polldev handler.
2. If the wireless transmitter switch control is read-only, it is an input
device and not to be registered with the rfkill class (and maybe not to be made
an input layer event source either, see below).
A driver should implement a few steps to correctly make use of the
rfkill subsystem. First for non-polling drivers:
3. If there is some other device driver *closer* to the actual hardware the
user interacted with (the button/switch/key) to issue an input event, THAT is
the device driver that should be issuing input events.
- rfkill_allocate()
- input_allocate_device()
- rfkill_register()
- input_register_device()
E.g:
[RFKILL slider switch] -- [GPIO hardware] -- [WLAN card rf-kill input]
(platform driver) (wireless card driver)
For polling drivers:
The user is closer to the RFKILL slide switch plaform driver, so the driver
which must issue input events is the platform driver looking at the GPIO
hardware, and NEVER the wireless card driver (which is just a slave). It is
very likely that there are other leaves than just the WLAN card rf-kill input
(e.g. a bluetooth card, etc)...
- rfkill_allocate()
- input_allocate_polled_device()
- rfkill_register()
- input_register_polled_device()
On the other hand, some embedded devices do this:
When a key event has been detected, the correct event should be
sent over the input device which has been registered by the driver.
[RFKILL slider switch] -- [WLAN card rf-kill input]
(wireless card driver)
In this situation, the wireless card driver *could* register itself as an input
device and issue rf-kill related input events... but in order to AVOID the need
for DMI whitelisting, the wireless card driver does NOT do it. Userspace (HAL)
or a platform driver (that exists only on these embedded devices) will do the
dirty job of issuing the input events.
COMMON MISTAKES in kernel drivers, related to rfkill:
====================================
3: Userspace support
For each key an input device will be created which will send out the correct
key event when the rfkill key has been pressed.
1. NEVER confuse input device keys and buttons with input device switches.
1a. Switches are always set or reset. They report the current state
(on position or off position).
1b. Keys and buttons are either in the pressed or not-pressed state, and
that's it. A "button" that latches down when you press it, and
unlatches when you press it again is in fact a switch as far as input
devices go.
Add the SW_* events you need for switches, do NOT try to emulate a button using
KEY_* events just because there is no such SW_* event yet. Do NOT try to use,
for example, KEY_BLUETOOTH when you should be using SW_BLUETOOTH instead.
2. Input device switches (sources of EV_SW events) DO store their current state
(so you *must* initialize it by issuing a gratuitous input layer event on
driver start-up and also when resuming from sleep), and that state CAN be
queried from userspace through IOCTLs. There is no sysfs interface for this,
but that doesn't mean you should break things trying to hook it to the rfkill
class to get a sysfs interface :-)
3. Do not issue *_RFKILL_ALL events by default, unless you are sure it is the
correct event for your switch/button. These events are emergency power-off
events when they are trying to turn the transmitters off. An example of an
input device which SHOULD generate *_RFKILL_ALL events is the wireless-kill
switch in a laptop which is NOT a hotkey, but a real switch that kills radios
in hardware, even if the O.S. has gone to lunch. An example of an input device
which SHOULD NOT generate *_RFKILL_ALL events by default, is any sort of hot
key that does nothing by itself, as well as any hot key that is type-specific
(e.g. the one for WLAN).
3.1 Guidelines for wireless device drivers
------------------------------------------
1. Each independent transmitter in a wireless device (usually there is only one
transmitter per device) should have a SINGLE rfkill class attached to it.
2. If the device does not have any sort of hardware assistance to allow the
driver to rfkill the device, the driver should emulate it by taking all actions
required to silence the transmitter.
3. If it is impossible to silence the transmitter (i.e. it still emits energy,
even if it is just in brief pulses, when there is no data to transmit and there
is no hardware support to turn it off) do NOT lie to the users. Do not attach
it to a rfkill class. The rfkill subsystem does not deal with data
transmission, it deals with energy emission. If the transmitter is emitting
energy, it is not blocked in rfkill terms.
4. It doesn't matter if the device has multiple rfkill input lines affecting
the same transmitter, their combined state is to be exported as a single state
per transmitter (see rule 1).
This rule exists because users of the rfkill subsystem expect to get (and set,
when possible) the overall transmitter rfkill state, not of a particular rfkill
line.
Example of a WLAN wireless driver connected to the rfkill subsystem:
--------------------------------------------------------------------
A certain WLAN card has one input pin that causes it to block the transmitter
and makes the status of that input pin available (only for reading!) to the
kernel driver. This is a hard rfkill input line (it cannot be overridden by
the kernel driver).
The card also has one PCI register that, if manipulated by the driver, causes
it to block the transmitter. This is a soft rfkill input line.
It has also a thermal protection circuitry that shuts down its transmitter if
the card overheats, and makes the status of that protection available (only for
reading!) to the kernel driver. This is also a hard rfkill input line.
If either one of these rfkill lines are active, the transmitter is blocked by
the hardware and forced offline.
The driver should allocate and attach to its struct device *ONE* instance of
the rfkill class (there is only one transmitter).
It can implement the get_state() hook, and return RFKILL_STATE_HARD_BLOCKED if
either one of its two hard rfkill input lines are active. If the two hard
rfkill lines are inactive, it must return RFKILL_STATE_SOFT_BLOCKED if its soft
rfkill input line is active. Only if none of the rfkill input lines are
active, will it return RFKILL_STATE_UNBLOCKED.
If it doesn't implement the get_state() hook, it must make sure that its calls
to rfkill_force_state() are enough to keep the status always up-to-date, and it
must do a rfkill_force_state() on resume from sleep.
Every time the driver gets a notification from the card that one of its rfkill
lines changed state (polling might be needed on badly designed cards that don't
generate interrupts for such events), it recomputes the rfkill state as per
above, and calls rfkill_force_state() to update it.
The driver should implement the toggle_radio() hook, that:
1. Returns an error if one of the hardware rfkill lines are active, and the
caller asked for RFKILL_STATE_UNBLOCKED.
2. Activates the soft rfkill line if the caller asked for state
RFKILL_STATE_SOFT_BLOCKED. It should do this even if one of the hard rfkill
lines are active, effectively double-blocking the transmitter.
3. Deactivates the soft rfkill line if none of the hardware rfkill lines are
active and the caller asked for RFKILL_STATE_UNBLOCKED.
===============================================================================
4: Kernel API
To build a driver with rfkill subsystem support, the driver should depend on
(or select) the Kconfig symbol RFKILL; it should _not_ depend on RKFILL_INPUT.
The hardware the driver talks to may be write-only (where the current state
of the hardware is unknown), or read-write (where the hardware can be queried
about its current state).
The rfkill class will call the get_state hook of a device every time it needs
to know the *real* current state of the hardware. This can happen often.
Some hardware provides events when its status changes. In these cases, it is
best for the driver to not provide a get_state hook, and instead register the
rfkill class *already* with the correct status, and keep it updated using
rfkill_force_state() when it gets an event from the hardware.
There is no provision for a statically-allocated rfkill struct. You must
use rfkill_allocate() to allocate one.
You should:
- rfkill_allocate()
- modify rfkill fields (flags, name)
- modify state to the current hardware state (THIS IS THE ONLY TIME
YOU CAN ACCESS state DIRECTLY)
- rfkill_register()
The only way to set a device to the RFKILL_STATE_HARD_BLOCKED state is through
a suitable return of get_state() or through rfkill_force_state().
When a device is in the RFKILL_STATE_HARD_BLOCKED state, the only way to switch
it to a different state is through a suitable return of get_state() or through
rfkill_force_state().
If toggle_radio() is called to set a device to state RFKILL_STATE_SOFT_BLOCKED
when that device is already at the RFKILL_STATE_HARD_BLOCKED state, it should
not return an error. Instead, it should try to double-block the transmitter,
so that its state will change from RFKILL_STATE_HARD_BLOCKED to
RFKILL_STATE_SOFT_BLOCKED should the hardware blocking cease.
Please refer to the source for more documentation.
===============================================================================
5: Userspace support
rfkill devices issue uevents (with an action of "change"), with the following
environment variables set:
RFKILL_NAME
RFKILL_STATE
RFKILL_TYPE
The ABI for these variables is defined by the sysfs attributes. It is best
to take a quick look at the source to make sure of the possible values.
It is expected that HAL will trap those, and bridge them to DBUS, etc. These
events CAN and SHOULD be used to give feedback to the user about the rfkill
status of the system.
Input devices may issue events that are related to rfkill. These are the
various KEY_* events and SW_* events supported by rfkill-input.c.
******IMPORTANT******
When rfkill-input is ACTIVE, userspace is NOT TO CHANGE THE STATE OF AN RFKILL
SWITCH IN RESPONSE TO AN INPUT EVENT also handled by rfkill-input, unless it
has set to true the user_claim attribute for that particular switch. This rule
is *absolute*; do NOT violate it.
******IMPORTANT******
Userspace must not assume it is the only source of control for rfkill switches.
Their state CAN and WILL change due to firmware actions, direct user actions,
and the rfkill-input EPO override for *_RFKILL_ALL.
When rfkill-input is not active, userspace must initiate a rfkill status
change by writing to the "state" attribute in order for anything to happen.
Take particular care to implement EV_SW SW_RFKILL_ALL properly. When that
switch is set to OFF, *every* rfkill device *MUST* be immediately put into the
RFKILL_STATE_SOFT_BLOCKED state, no questions asked.
The following sysfs entries will be created:
name: Name assigned by driver to this key (interface or driver name).
type: Name of the key type ("wlan", "bluetooth", etc).
state: Current state of the key. 1: On, 0: Off.
state: Current state of the transmitter
0: RFKILL_STATE_SOFT_BLOCKED
transmitter is forced off, but one can override it
by a write to the state attribute;
1: RFKILL_STATE_UNBLOCKED
transmiter is NOT forced off, and may operate if
all other conditions for such operation are met
(such as interface is up and configured, etc);
2: RFKILL_STATE_HARD_BLOCKED
transmitter is forced off by something outside of
the driver's control. One cannot set a device to
this state through writes to the state attribute;
claim: 1: Userspace handles events, 0: Kernel handles events
Both the "state" and "claim" entries are also writable. For the "state" entry
this means that when 1 or 0 is written all radios, not yet in the requested
state, will be will be toggled accordingly.
this means that when 1 or 0 is written, the device rfkill state (if not yet in
the requested state), will be will be toggled accordingly.
For the "claim" entry writing 1 to it means that the kernel no longer handles
key events even though RFKILL_INPUT input was enabled. When "claim" has been
set to 0, userspace should make sure that it listens for the input events or
check the sysfs "state" entry regularly to correctly perform the required
tasks when the rkfill key is pressed.
check the sysfs "state" entry regularly to correctly perform the required tasks
when the rkfill key is pressed.
A note about input devices and EV_SW events:
In order to know the current state of an input device switch (like
SW_RFKILL_ALL), you will need to use an IOCTL. That information is not
available through sysfs in a generic way at this time, and it is not available
through the rfkill class AT ALL.

11
Documentation/serial/driver
View File

@ -186,6 +186,17 @@ hardware.
Locking: port_sem taken.
Interrupts: caller dependent.
flush_buffer(port)
Flush any write buffers, reset any DMA state and stop any
ongoing DMA transfers.
This will be called whenever the port->info->xmit circular
buffer is cleared.
Locking: port->lock taken.
Interrupts: locally disabled.
This call must not sleep
set_termios(port,termios,oldtermios)
Change the port parameters, including word length, parity, stop
bits. Update read_status_mask and ignore_status_mask to indicate

35
Documentation/usb/gadget_serial.txt
View File

@ -1,6 +1,7 @@
Linux Gadget Serial Driver v2.0
11/20/2004
(updated 8-May-2008 for v2.3)
License and Disclaimer
@ -31,7 +32,7 @@ Prerequisites
-------------
Versions of the gadget serial driver are available for the
2.4 Linux kernels, but this document assumes you are using
version 2.0 or later of the gadget serial driver in a 2.6
version 2.3 or later of the gadget serial driver in a 2.6
Linux kernel.
This document assumes that you are familiar with Linux and
@ -40,6 +41,12 @@ standard utilities, use minicom and HyperTerminal, and work with
USB and serial devices. It also assumes you configure the Linux
gadget and usb drivers as modules.
With version 2.3 of the driver, major and minor device nodes are
no longer statically defined. Your Linux based system should mount
sysfs in /sys, and use "mdev" (in Busybox) or "udev" to make the
/dev nodes matching the sysfs /sys/class/tty files.
Overview
--------
@ -104,15 +111,8 @@ driver. All this are listed under "USB Gadget Support" when
configuring the kernel. Then rebuild and install the kernel or
modules.
The gadget serial driver uses major number 127, for now. So you
will need to create a device node for it, like this:
mknod /dev/ttygserial c 127 0
You only need to do this once.
Then you must load the gadget serial driver. To load it as an
ACM device, do this:
ACM device (recommended for interoperability), do this:
modprobe g_serial use_acm=1
@ -125,6 +125,23 @@ controller driver. This must be done each time you reboot the gadget
side Linux system. You can add this to the start up scripts, if
desired.
Your system should use mdev (from busybox) or udev to make the
device nodes. After this gadget driver has been set up you should
then see a /dev/ttyGS0 node:
# ls -l /dev/ttyGS0 | cat
crw-rw---- 1 root root 253, 0 May 8 14:10 /dev/ttyGS0
#
Note that the major number (253, above) is system-specific. If
you need to create /dev nodes by hand, the right numbers to use
will be in the /sys/class/tty/ttyGS0/dev file.
When you link this gadget driver early, perhaps even statically,
you may want to set up an /etc/inittab entry to run "getty" on it.
The /dev/ttyGS0 line should work like most any other serial port.
If gadget serial is loaded as an ACM device you will want to use
either the Windows or Linux ACM driver on the host side. If gadget
serial is loaded as a bulk in/out device, you will want to use the

7
Documentation/usb/persist.txt
View File

@ -81,8 +81,11 @@ re-enumeration shows that the device now attached to that port has the
same descriptors as before, including the Vendor and Product IDs, then
the kernel continues to use the same device structure. In effect, the
kernel treats the device as though it had merely been reset instead of
unplugged. The same thing happens if the host controller is in the
expected state but a USB device was unplugged and then replugged.
unplugged.
The same thing happens if the host controller is in the expected state
but a USB device was unplugged and then replugged, or if a USB device
fails to carry out a normal resume.
If no device is now attached to the port, or if the descriptors are
different from what the kernel remembers, then the treatment is what

165
Documentation/usb/uhci.txt
View File

@ -1,165 +0,0 @@
Specification and Internals for the New UHCI Driver (Whitepaper...)
brought to you by
Georg Acher, acher@in.tum.de (executive slave) (base guitar)
Deti Fliegl, deti@fliegl.de (executive slave) (lead voice)
Thomas Sailer, sailer@ife.ee.ethz.ch (chief consultant) (cheer leader)
$Id: README.uhci,v 1.1 1999/12/14 14:03:02 fliegl Exp $
This document and the new uhci sources can be found on
http://hotswap.in.tum.de/usb
1. General issues
1.1 Why a new UHCI driver, we already have one?!?
Correct, but its internal structure got more and more mixed up by the (still
ongoing) efforts to get isochronous transfers (ISO) to work.
Since there is an increasing need for reliable ISO-transfers (especially
for USB-audio needed by TS and for a DAB-USB-Receiver build by GA and DF),
this state was a bit unsatisfying in our opinion, so we've decided (based
on knowledge and experiences with the old UHCI driver) to start
from scratch with a new approach, much simpler but at the same time more
powerful.
It is inspired by the way Win98/Win2000 handles USB requests via URBs,
but it's definitely 100% free of MS-code and doesn't crash while
unplugging an used ISO-device like Win98 ;-)
Some code for HW setup and root hub management was taken from the
original UHCI driver, but heavily modified to fit into the new code.
The invention of the basic concept, and major coding were completed in two
days (and nights) on the 16th and 17th of October 1999, now known as the
great USB-October-Revolution started by GA, DF, and TS ;-)
Since the concept is in no way UHCI dependent, we hope that it will also be
transferred to the OHCI-driver, so both drivers share a common API.
1.2. Advantages and disadvantages
+ All USB transfer types work now!
+ Asynchronous operation
+ Simple, but powerful interface (only two calls for start and cancel)
+ Easy migration to the new API, simplified by a compatibility API
+ Simple usage of ISO transfers
+ Automatic linking of requests
+ ISO transfers allow variable length for each frame and striping
+ No CPU dependent and non-portable atomic memory access, no asm()-inlines
+ Tested on x86 and Alpha
- Rewriting for ISO transfers needed
1.3. Is there some compatibility to the old API?
Yes, but only for control, bulk and interrupt transfers. We've implemented
some wrapper calls for these transfer types. The usbcore works fine with
these wrappers. For ISO there's no compatibility, because the old ISO-API
and its semantics were unnecessary complicated in our opinion.
1.4. What's really working?
As said above, CTRL and BULK already work fine even with the wrappers,
so legacy code wouldn't notice the change.
Regarding to Thomas, ISO transfers now run stable with USB audio.
INT transfers (e.g. mouse driver) work fine, too.
1.5. Are there any bugs?
No ;-)
Hm...
Well, of course this implementation needs extensive testing on all available
hardware, but we believe that any fixes shouldn't harm the overall concept.
1.6. What should be done next?
A large part of the request handling seems to be identical for UHCI and
OHCI, so it would be a good idea to extract the common parts and have only
the HW specific stuff in uhci.c. Furthermore, all other USB device drivers
should need URBification, if they use isochronous or interrupt transfers.
One thing missing in the current implementation (and the old UHCI driver)
is fair queueing for BULK transfers. Since this would need (in principle)
the alteration of already constructed TD chains (to switch from depth to
breadth execution), another way has to be found. Maybe some simple
heuristics work with the same effect.
---------------------------------------------------------------------------
2. Internal structure and mechanisms
To get quickly familiar with the internal structures, here's a short
description how the new UHCI driver works. However, the ultimate source of
truth is only uhci.c!
2.1. Descriptor structure (QHs and TDs)
During initialization, the following skeleton is allocated in init_skel:
framespecific | common chain
framelist[]
[ 0 ]-----> TD --> TD -------\
[ 1 ]-----> TD --> TD --------> TD ----> QH -------> QH -------> QH ---> NULL
... TD --> TD -------/
[1023]-----> TD --> TD ------/
^^ ^^ ^^ ^^ ^^ ^^
1024 TDs for 7 TDs for 1 TD for Start of Start of End Chain
ISO INT (2-128ms) 1ms-INT CTRL Chain BULK Chain
For each CTRL or BULK transfer a new QH is allocated and the containing data
transfers are appended as (vertical) TDs. After building the whole QH with its
dangling TDs, the QH is inserted before the BULK Chain QH (for CTRL) or
before the End Chain QH (for BULK). Since only the QH->next pointers are
affected, no atomic memory operation is required. The three QHs in the
common chain are never equipped with TDs!
For ISO or INT, the TD for each frame is simply inserted into the appropriate
ISO/INT-TD-chain for the desired frame. The 7 skeleton INT-TDs are scattered
among the 1024 frames similar to the old UHCI driver.
For CTRL/BULK/ISO, the last TD in the transfer has the IOC-bit set. For INT,
every TD (there is only one...) has the IOC-bit set.
Besides the data for the UHCI controller (2 or 4 32bit words), the descriptors
are double-linked through the .vertical and .horizontal elements in the
SW data of the descriptor (using the double-linked list structures and
operations), but SW-linking occurs only in closed domains, i.e. for each of
the 1024 ISO-chains and the 8 INT-chains there is a closed cycle. This
simplifies all insertions and unlinking operations and avoids costly
bus_to_virt()-calls.
2.2. URB structure and linking to QH/TDs
During assembly of the QH and TDs of the requested action, these descriptors
are stored in urb->urb_list, so the allocated QH/TD descriptors are bound to
this URB.
If the assembly was successful and the descriptors were added to the HW chain,
the corresponding URB is inserted into a global URB list for this controller.
This list stores all pending URBs.
2.3. Interrupt processing
Since UHCI provides no means to directly detect completed transactions, the
following is done in each UHCI interrupt (uhci_interrupt()):
For each URB in the pending queue (process_urb()), the ACTIVE-flag of the
associated TDs are processed (depending on the transfer type
process_{transfer|interrupt|iso}()). If the TDs are not active anymore,
they indicate the completion of the transaction and the status is calculated.
Inactive QH/TDs are removed from the HW chain (since the host controller
already removed the TDs from the QH, no atomic access is needed) and
eventually the URB is marked as completed (OK or errors) and removed from the
pending queue. Then the next linked URB is submitted. After (or immediately
before) that, the completion handler is called.
2.4. Unlinking URBs
First, all QH/TDs stored in the URB are unlinked from the HW chain.
To ensure that the host controller really left a vertical TD chain, we
wait for one frame. After that, the TDs are physically destroyed.
2.5. URB linking and the consequences
Since URBs can be linked and the corresponding submit_urb is called in
the UHCI-interrupt, all work associated with URB/QH/TD assembly has to be
interrupt save. This forces kmalloc to use GFP_ATOMIC in the interrupt.

1
Documentation/video4linux/CARDLIST.cx23885
View File

@ -8,3 +8,4 @@
7 -> Hauppauge WinTV-HVR1200 [0070:71d1,0070:71d3]
8 -> Hauppauge WinTV-HVR1700 [0070:8101]
9 -> Hauppauge WinTV-HVR1400 [0070:8010]
10 -> DViCO FusionHDTV7 Dual Express [18ac:d618]

5
Documentation/video4linux/CARDLIST.em28xx
View File

@ -8,10 +8,13 @@
7 -> Leadtek Winfast USB II (em2800)
8 -> Kworld USB2800 (em2800)
9 -> Pinnacle Dazzle DVC 90/DVC 100 (em2820/em2840) [2304:0207,2304:021a]
10 -> Hauppauge WinTV HVR 900 (em2880) [2040:6500,2040:6502]
10 -> Hauppauge WinTV HVR 900 (em2880) [2040:6500]
11 -> Terratec Hybrid XS (em2880) [0ccd:0042]
12 -> Kworld PVR TV 2800 RF (em2820/em2840)
13 -> Terratec Prodigy XS (em2880) [0ccd:0047]
14 -> Pixelview Prolink PlayTV USB 2.0 (em2820/em2840)
15 -> V-Gear PocketTV (em2800)
16 -> Hauppauge WinTV HVR 950 (em2880) [2040:6513,2040:6517,2040:651b,2040:651f]
17 -> Pinnacle PCTV HD Pro Stick (em2880) [2304:0227]
18 -> Hauppauge WinTV HVR 900 (R2) (em2880) [2040:6502]
19 -> PointNix Intra-Oral Camera (em2860)

8
Documentation/video4linux/CARDLIST.saa7134
View File

@ -37,7 +37,7 @@
36 -> UPMOST PURPLE TV [12ab:0800]
37 -> Items MuchTV Plus / IT-005
38 -> Terratec Cinergy 200 TV [153b:1152]
39 -> LifeView FlyTV Platinum Mini [5168:0212,4e42:0212]
39 -> LifeView FlyTV Platinum Mini [5168:0212,4e42:0212,5169:1502]
40 -> Compro VideoMate TV PVR/FM [185b:c100]
41 -> Compro VideoMate TV Gold+ [185b:c100]
42 -> Sabrent SBT-TVFM (saa7130)
@ -128,7 +128,7 @@
127 -> Beholder BeholdTV 507 FM/RDS / BeholdTV 509 FM [0000:5071,0000:507B,5ace:5070,5ace:5090]
128 -> Beholder BeholdTV Columbus TVFM [0000:5201]
129 -> Beholder BeholdTV 607 / BeholdTV 609 [5ace:6070,5ace:6071,5ace:6072,5ace:6073,5ace:6090,5ace:6091,5ace:6092,5ace:6093]
130 -> Beholder BeholdTV M6 / BeholdTV M6 Extra [5ace:6190,5ace:6193,5ace:6191]
130 -> Beholder BeholdTV M6 [5ace:6190]
131 -> Twinhan Hybrid DTV-DVB 3056 PCI [1822:0022]
132 -> Genius TVGO AM11MCE
133 -> NXP Snake DVB-S reference design
@ -141,3 +141,7 @@
140 -> Avermedia DVB-S Pro A700 [1461:a7a1]
141 -> Avermedia DVB-S Hybrid+FM A700 [1461:a7a2]
142 -> Beholder BeholdTV H6 [5ace:6290]
143 -> Beholder BeholdTV M63 [5ace:6191]
144 -> Beholder BeholdTV M6 Extra [5ace:6193]
145 -> AVerMedia MiniPCI DVB-T Hybrid M103 [1461:f636]
146 -> ASUSTeK P7131 Analog

36
Documentation/video4linux/cx18.txt
View File

@ -1,36 +1,30 @@
Some notes regarding the cx18 driver for the Conexant CX23418 MPEG
encoder chip:
1) The only hardware currently supported is the Hauppauge HVR-1600
card and the Compro VideoMate H900 (note that this card only
supports analog input, it has no digital tuner!).
1) Currently supported are:
2) Some people have problems getting the i2c bus to work. Cause unknown.
- Hauppauge HVR-1600
- Compro VideoMate H900
- Yuan MPC718
- Conexant Raptor PAL/SECAM devkit
2) Some people have problems getting the i2c bus to work.
The symptom is that the eeprom cannot be read and the card is
unusable.
unusable. This is probably fixed, but if you have problems
then post to the video4linux or ivtv-users mailinglist.
3) The audio from the analog tuner is mono only. Probably caused by
incorrect audio register information in the datasheet. We are
waiting for updated information from Conexant.
3) VBI (raw or sliced) has not yet been implemented.
4) VBI (raw or sliced) has not yet been implemented.
4) MPEG indexing is not yet implemented.
5) MPEG indexing is not yet implemented.
6) The driver is still a bit rough around the edges, this should
5) The driver is still a bit rough around the edges, this should
improve over time.
Firmware:
The firmware needs to be extracted from the Windows Hauppauge HVR-1600
driver, available here:
You can obtain the firmware files here:
http://hauppauge.lightpath.net/software/install_cd/hauppauge_cd_3.4d1.zip
http://dl.ivtvdriver.org/ivtv/firmware/cx18-firmware.tar.gz
Unzip, then copy the following files to the firmware directory
and rename them as follows:
Drivers/Driver18/hcw18apu.rom -> v4l-cx23418-apu.fw
Drivers/Driver18/hcw18enc.rom -> v4l-cx23418-cpu.fw
Drivers/Driver18/hcw18mlC.rom -> v4l-cx23418-dig.fw
Untar and copy the .fw files to your firmware directory.

243
Documentation/video4linux/gspca.txt Normal file
View File

@ -0,0 +1,243 @@
List of the webcams know by gspca.
The modules are:
gspca_main main driver
gspca_xxxx subdriver module with xxxx as follows
xxxx vend:prod
----
spca501 0000:0000 MystFromOri Unknow Camera
spca501 040a:0002 Kodak DVC-325
spca500 040a:0300 Kodak EZ200
zc3xx 041e:041e Creative WebCam Live!
spca500 041e:400a Creative PC-CAM 300
sunplus 041e:400b Creative PC-CAM 600
sunplus 041e:4012 PC-Cam350
sunplus 041e:4013 Creative Pccam750
zc3xx 041e:4017 Creative Webcam Mobile PD1090
spca508 041e:4018 Creative Webcam Vista (PD1100)
spca561 041e:401a Creative Webcam Vista (PD1100)
zc3xx 041e:401c Creative NX
spca505 041e:401d Creative Webcam NX ULTRA
zc3xx 041e:401e Creative Nx Pro
zc3xx 041e:401f Creative Webcam Notebook PD1171
pac207 041e:4028 Creative Webcam Vista Plus
zc3xx 041e:4029 Creative WebCam Vista Pro
zc3xx 041e:4034 Creative Instant P0620
zc3xx 041e:4035 Creative Instant P0620D
zc3xx 041e:4036 Creative Live !
zc3xx 041e:403a Creative Nx Pro 2
spca561 041e:403b Creative Webcam Vista (VF0010)
zc3xx 041e:4051 Creative Live!Cam Notebook Pro (VF0250)
ov519 041e:4052 Creative Live! VISTA IM
zc3xx 041e:4053 Creative Live!Cam Video IM
ov519 041e:405f Creative Live! VISTA VF0330
ov519 041e:4060 Creative Live! VISTA VF0350
ov519 041e:4061 Creative Live! VISTA VF0400
ov519 041e:4064 Creative Live! VISTA VF0420
ov519 041e:4068 Creative Live! VISTA VF0470
spca561 0458:7004 Genius VideoCAM Express V2
sunplus 0458:7006 Genius Dsc 1.3 Smart
zc3xx 0458:7007 Genius VideoCam V2
zc3xx 0458:700c Genius VideoCam V3
zc3xx 0458:700f Genius VideoCam Web V2
sonixj 0458:7025 Genius Eye 311Q
sonixj 045e:00f5 MicroSoft VX3000
sonixj 045e:00f7 MicroSoft VX1000
ov519 045e:028c Micro$oft xbox cam
spca508 0461:0815 Micro Innovation IC200
sunplus 0461:0821 Fujifilm MV-1
zc3xx 0461:0a00 MicroInnovation WebCam320
spca500 046d:0890 Logitech QuickCam traveler
vc032x 046d:0892 Logitech Orbicam
vc032x 046d:0896 Logitech Orbicam
zc3xx 046d:08a0 Logitech QC IM
zc3xx 046d:08a1 Logitech QC IM 0x08A1 +sound
zc3xx 046d:08a2 Labtec Webcam Pro
zc3xx 046d:08a3 Logitech QC Chat
zc3xx 046d:08a6 Logitech QCim
zc3xx 046d:08a7 Logitech QuickCam Image
zc3xx 046d:08a9 Logitech Notebook Deluxe
zc3xx 046d:08aa Labtec Webcam Notebook
zc3xx 046d:08ac Logitech QuickCam Cool
zc3xx 046d:08ad Logitech QCCommunicate STX
zc3xx 046d:08ae Logitech QuickCam for Notebooks
zc3xx 046d:08af Logitech QuickCam Cool
zc3xx 046d:08b9 Logitech QC IM ???
zc3xx 046d:08d7 Logitech QCam STX
zc3xx 046d:08d9 Logitech QuickCam IM/Connect
zc3xx 046d:08d8 Logitech Notebook Deluxe
zc3xx 046d:08da Logitech QuickCam Messenger
zc3xx 046d:08dd Logitech QuickCam for Notebooks
spca500 046d:0900 Logitech Inc. ClickSmart 310
spca500 046d:0901 Logitech Inc. ClickSmart 510
sunplus 046d:0905 Logitech ClickSmart 820
tv8532 046d:0920 QC Express
tv8532 046d:0921 Labtec Webcam
spca561 046d:0928 Logitech QC Express Etch2
spca561 046d:0929 Labtec Webcam Elch2
spca561 046d:092a Logitech QC for Notebook
spca561 046d:092b Labtec Webcam Plus
spca561 046d:092c Logitech QC chat Elch2
spca561 046d:092d Logitech QC Elch2
spca561 046d:092e Logitech QC Elch2
spca561 046d:092f Logitech QC Elch2
sunplus 046d:0960 Logitech ClickSmart 420
sunplus 0471:0322 Philips DMVC1300K
zc3xx 0471:0325 Philips SPC 200 NC
zc3xx 0471:0326 Philips SPC 300 NC
sonixj 0471:0327 Philips SPC 600 NC
sonixj 0471:0328 Philips SPC 700 NC
zc3xx 0471:032d Philips spc210nc
zc3xx 0471:032e Philips spc315nc
sonixj 0471:0330 Philips SPC 710NC
spca501 0497:c001 Smile International
sunplus 04a5:3003 Benq DC 1300
sunplus 04a5:3008 Benq DC 1500
sunplus 04a5:300a Benq DC3410
spca500 04a5:300c Benq DC1016
sunplus 04f1:1001 JVC GC A50
spca561 04fc:0561 Flexcam 100
sunplus 04fc:500c Sunplus CA500C
sunplus 04fc:504a Aiptek Mini PenCam 1.3
sunplus 04fc:504b Maxell MaxPocket LE 1.3
sunplus 04fc:5330 Digitrex 2110
sunplus 04fc:5360 Sunplus Generic
spca500 04fc:7333 PalmPixDC85
sunplus 04fc:ffff Pure DigitalDakota
spca501 0506:00df 3Com HomeConnect Lite
sunplus 052b:1513 Megapix V4
tv8532 0545:808b Veo Stingray
tv8532 0545:8333 Veo Stingray
sunplus 0546:3155 Polaroid PDC3070
sunplus 0546:3191 Polaroid Ion 80
sunplus 0546:3273 Polaroid PDC2030
ov519 054c:0154 Sonny toy4
ov519 054c:0155 Sonny toy5
zc3xx 055f:c005 Mustek Wcam300A
spca500 055f:c200 Mustek Gsmart 300
sunplus 055f:c211 Kowa Bs888e Microcamera
spca500 055f:c220 Gsmart Mini
sunplus 055f:c230 Mustek Digicam 330K
sunplus 055f:c232 Mustek MDC3500
sunplus 055f:c360 Mustek DV4000 Mpeg4
sunplus 055f:c420 Mustek gSmart Mini 2
sunplus 055f:c430 Mustek Gsmart LCD 2
sunplus 055f:c440 Mustek DV 3000
sunplus 055f:c520 Mustek gSmart Mini 3
sunplus 055f:c530 Mustek Gsmart LCD 3
sunplus 055f:c540 Gsmart D30
sunplus 055f:c630 Mustek MDC4000
sunplus 055f:c650 Mustek MDC5500Z
zc3xx 055f:d003 Mustek WCam300A
zc3xx 055f:d004 Mustek WCam300 AN
conex 0572:0041 Creative Notebook cx11646
ov519 05a9:0519 OmniVision
ov519 05a9:0530 OmniVision
ov519 05a9:4519 OmniVision
ov519 05a9:8519 OmniVision
sunplus 05da:1018 Digital Dream Enigma 1.3
stk014 05e1:0893 Syntek DV4000
spca561 060b:a001 Maxell Compact Pc PM3
zc3xx 0698:2003 CTX M730V built in
spca500 06bd:0404 Agfa CL20
spca500 06be:0800 Optimedia
sunplus 06d6:0031 Trust 610 LCD PowerC@m Zoom
spca506 06e1:a190 ADS Instant VCD
spca508 0733:0110 ViewQuest VQ110
spca508 0130:0130 Clone Digital Webcam 11043
spca501 0733:0401 Intel Create and Share
spca501 0733:0402 ViewQuest M318B
spca505 0733:0430 Intel PC Camera Pro
sunplus 0733:1311 Digital Dream Epsilon 1.3
sunplus 0733:1314 Mercury 2.1MEG Deluxe Classic Cam
sunplus 0733:2211 Jenoptik jdc 21 LCD
sunplus 0733:2221 Mercury Digital Pro 3.1p
sunplus 0733:3261 Concord 3045 spca536a
sunplus 0733:3281 Cyberpix S550V
spca506 0734:043b 3DeMon USB Capture aka
spca500 084d:0003 D-Link DSC-350
spca500 08ca:0103 Aiptek PocketDV
sunplus 08ca:0104 Aiptek PocketDVII 1.3
sunplus 08ca:0106 Aiptek Pocket DV3100+
sunplus 08ca:2008 Aiptek Mini PenCam 2 M
sunplus 08ca:2010 Aiptek PocketCam 3M
sunplus 08ca:2016 Aiptek PocketCam 2 Mega
sunplus 08ca:2018 Aiptek Pencam SD 2M
sunplus 08ca:2020 Aiptek Slim 3000F
sunplus 08ca:2022 Aiptek Slim 3200
sunplus 08ca:2024 Aiptek DV3500 Mpeg4
sunplus 08ca:2028 Aiptek PocketCam4M
sunplus 08ca:2040 Aiptek PocketDV4100M
sunplus 08ca:2042 Aiptek PocketDV5100
sunplus 08ca:2050 Medion MD 41437
sunplus 08ca:2060 Aiptek PocketDV5300
tv8532 0923:010f ICM532 cams
mars 093a:050f Mars-Semi Pc-Camera
pac207 093a:2460 PAC207 Qtec Webcam 100
pac207 093a:2463 Philips spc200nc pac207
pac207 093a:2464 Labtec Webcam 1200
pac207 093a:2468 PAC207
pac207 093a:2470 Genius GF112
pac207 093a:2471 PAC207 Genius VideoCam ge111
pac207 093a:2472 PAC207 Genius VideoCam ge110
pac7311 093a:2600 PAC7311 Typhoon
pac7311 093a:2601 PAC7311 Phillips SPC610NC
pac7311 093a:2603 PAC7312
pac7311 093a:2608 PAC7311 Trust WB-3300p
pac7311 093a:260e PAC7311 Gigaware VGA PC Camera, Trust WB-3350p, SIGMA cam 2350
pac7311 093a:260f PAC7311 SnakeCam
pac7311 093a:2621 PAC731x
zc3xx 0ac8:0302 Z-star Vimicro zc0302
vc032x 0ac8:0321 Vimicro generic vc0321
vc032x 0ac8:0323 Vimicro Vc0323
vc032x 0ac8:0328 A4Tech PK-130MG
zc3xx 0ac8:301b Z-Star zc301b
zc3xx 0ac8:303b Vimicro 0x303b
zc3xx 0ac8:305b Z-star Vimicro zc0305b
zc3xx 0ac8:307b Ldlc VC302+Ov7620
vc032x 0ac8:c001 Sony embedded vimicro
vc032x 0ac8:c002 Sony embedded vimicro
spca508 0af9:0010 Hama USB Sightcam 100
spca508 0af9:0011 Hama USB Sightcam 100
sonixb 0c45:6001 Genius VideoCAM NB
sonixb 0c45:6005 Microdia Sweex Mini Webcam
sonixb 0c45:6007 Sonix sn9c101 + Tas5110D
sonixb 0c45:6009 spcaCam@120
sonixb 0c45:600d spcaCam@120
sonixb 0c45:6011 Microdia PC Camera (SN9C102)
sonixb 0c45:6019 Generic Sonix OV7630
sonixb 0c45:6024 Generic Sonix Tas5130c
sonixb 0c45:6025 Xcam Shanga
sonixb 0c45:6028 Sonix Btc Pc380
sonixb 0c45:6029 spcaCam@150
sonixb 0c45:602c Generic Sonix OV7630
sonixb 0c45:602d LIC-200 LG
sonixb 0c45:602e Genius VideoCam Messenger
sonixj 0c45:6040 Speed NVC 350K
sonixj 0c45:607c Sonix sn9c102p Hv7131R
sonixj 0c45:60c0 Sangha Sn535
sonixj 0c45:60ec SN9C105+MO4000
sonixj 0c45:60fb Surfer NoName
sonixj 0c45:60fc LG-LIC300
sonixj 0c45:612a Avant Camera
sonixj 0c45:612c Typhoon Rasy Cam 1.3MPix
sonixj 0c45:6130 Sonix Pccam
sonixj 0c45:6138 Sn9c120 Mo4000
sonixj 0c45:613b Surfer SN-206
sonixj 0c45:613c Sonix Pccam168
sunplus 0d64:0303 Sunplus FashionCam DXG
etoms 102c:6151 Qcam Sangha CIF
etoms 102c:6251 Qcam xxxxxx VGA
zc3xx 10fd:0128 Typhoon Webshot II USB 300k 0x0128
spca561 10fd:7e50 FlyCam Usb 100
zc3xx 10fd:8050 Typhoon Webshot II USB 300k
spca501 1776:501c Arowana 300K CMOS Camera
t613 17a1:0128 T613/TAS5130A
vc032x 17ef:4802 Lenovo Vc0323+MI1310_SOC
pac207 2001:f115 D-Link DSB-C120
spca500 2899:012c Toptro Industrial
spca508 8086:0110 Intel Easy PC Camera
spca500 8086:0630 Intel Pocket PC Camera
spca506 99fa:8988 Grandtec V.cap
spca561 abcd:cdee Petcam

36
MAINTAINERS
View File

@ -248,7 +248,7 @@ S: Supported
ACPI PCI HOTPLUG DRIVER
P: Kristen Carlson Accardi
M: kristen.c.accardi@intel.com
L: pcihpd-discuss@lists.sourceforge.net
L: linux-pci@vger.kernel.org
S: Supported
ACPI THERMAL DRIVER
@ -1145,21 +1145,21 @@ COMPACTPCI HOTPLUG CORE
P: Scott Murray
M: scottm@somanetworks.com
M: scott@spiteful.org
L: pcihpd-discuss@lists.sourceforge.net
L: linux-pci@vger.kernel.org
S: Supported
COMPACTPCI HOTPLUG ZIATECH ZT5550 DRIVER
P: Scott Murray
M: scottm@somanetworks.com
M: scott@spiteful.org
L: pcihpd-discuss@lists.sourceforge.net
L: linux-pci@vger.kernel.org
S: Supported
COMPACTPCI HOTPLUG GENERIC DRIVER
P: Scott Murray
M: scottm@somanetworks.com
M: scott@spiteful.org
L: pcihpd-discuss@lists.sourceforge.net
L: linux-pci@vger.kernel.org
S: Supported
COMPAL LAPTOP SUPPORT
@ -1988,6 +1988,12 @@ M: mikulas@artax.karlin.mff.cuni.cz
W: http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi
S: Maintained
HTCPEN TOUCHSCREEN DRIVER
P: Pau Oliva Fora
M: pof@eslack.org
L: linux-input@vger.kernel.org
S: Maintained
HUGETLB FILESYSTEM
P: William Irwin
M: wli@holomorphy.com
@ -2189,6 +2195,8 @@ P: Jesse Brandeburg
M: jesse.brandeburg@intel.com
P: Bruce Allan
M: bruce.w.allan@intel.com
P: PJ Waskiewicz
M: peter.p.waskiewicz.jr@intel.com
P: John Ronciak
M: john.ronciak@intel.com
L: e1000-devel@lists.sourceforge.net
@ -2725,12 +2733,10 @@ L: libertas-dev@lists.infradead.org
S: Maintained
MARVELL MV643XX ETHERNET DRIVER
P: Dale Farnsworth
M: dale@farnsworth.org
P: Manish Lachwani
M: mlachwani@mvista.com
P: Lennert Buytenhek
M: buytenh@marvell.com
L: netdev@vger.kernel.org
S: Odd Fixes for 2.4; Maintained for 2.6.
S: Supported
MATROX FRAMEBUFFER DRIVER
P: Petr Vandrovec
@ -3219,7 +3225,7 @@ S: Supported
PCIE HOTPLUG DRIVER
P: Kristen Carlson Accardi
M: kristen.c.accardi@intel.com
L: pcihpd-discuss@lists.sourceforge.net
L: linux-pci@vger.kernel.org
S: Supported
PCMCIA SUBSYSTEM
@ -3274,14 +3280,6 @@ L: linux-kernel@vger.kernel.org
T: git git.infradead.org/battery-2.6.git
S: Maintained
POWERPC 4xx EMAC DRIVER
P: Eugene Surovegin
M: ebs@ebshome.net
W: http://kernel.ebshome.net/emac/
L: linuxppc-dev@ozlabs.org
L: netdev@vger.kernel.org
S: Maintained
PNP SUPPORT
P: Adam Belay
M: ambx1@neo.rr.com
@ -3865,7 +3863,7 @@ S: Maintained
SHPC HOTPLUG DRIVER
P: Kristen Carlson Accardi
M: kristen.c.accardi@intel.com
L: pcihpd-discuss@lists.sourceforge.net
L: linux-pci@vger.kernel.org
S: Supported
SECURE DIGITAL HOST CONTROLLER INTERFACE DRIVER

1
Makefile
View File

@ -1,4 +1,3 @@
FRED=42
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 26

7
arch/blackfin/mach-bf527/boards/ezkit.c
View File

@ -323,10 +323,15 @@ static struct platform_device smc91x_device = {
static struct resource dm9000_resources[] = {
[0] = {
.start = 0x203FB800,
.end = 0x203FB800 + 8,
.end = 0x203FB800 + 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x203FB800 + 4,
.end = 0x203FB800 + 5,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_PF9,
.end = IRQ_PF9,
.flags = (IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE),

7
arch/blackfin/mach-bf533/boards/H8606.c
View File

@ -65,10 +65,15 @@ static struct platform_device rtc_device = {
static struct resource dm9000_resources[] = {
[0] = {
.start = 0x20300000,
.end = 0x20300000 + 8,
.end = 0x20300000 + 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x20300000 + 4,
.end = 0x20300000 + 5,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_PF10,
.end = IRQ_PF10,
.flags = (IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE),

7
arch/blackfin/mach-bf537/boards/generic_board.c
View File

@ -166,10 +166,15 @@ static struct platform_device smc91x_device = {
static struct resource dm9000_resources[] = {
[0] = {
.start = 0x203FB800,
.end = 0x203FB800 + 8,
.end = 0x203FB800 + 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x203FB800 + 4,
.end = 0x203FB800 + 5,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_PF9,
.end = IRQ_PF9,
.flags = (IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE),

1
arch/cris/arch-v10/boot/Makefile
View File

@ -2,7 +2,6 @@
# arch/cris/arch-v10/boot/Makefile
#
OBJCOPY = objcopy-cris
OBJCOPYFLAGS = -O binary --remove-section=.bss
subdir- := compressed rescue

14
arch/cris/arch-v10/boot/compressed/Makefile
View File

@ -2,12 +2,10 @@
# arch/cris/arch-v10/boot/compressed/Makefile
#
CC = gcc-cris -melf $(LINUXINCLUDE)
ccflags-y += -O2
LD = ld-cris
ldflags-y += -T $(obj)/decompress.ld
asflags-y += $(LINUXINCLUDE)
ccflags-y += -O2 $(LINUXINCLUDE)
ldflags-y += -T $(srctree)/$(obj)/decompress.ld
OBJECTS = $(obj)/head.o $(obj)/misc.o
OBJCOPY = objcopy-cris
OBJCOPYFLAGS = -O binary --remove-section=.bss
quiet_cmd_image = BUILD $@
@ -21,12 +19,6 @@ $(obj)/decompress.o: $(OBJECTS) FORCE
$(obj)/decompress.bin: $(obj)/decompress.o FORCE
$(call if_changed,objcopy)
$(obj)/head.o: $(obj)/head.S .config
@$(CC) -D__ASSEMBLY__ -traditional -c $< -o $@
$(obj)/misc.o: $(obj)/misc.c .config
@$(CC) -D__KERNEL__ -c $< -o $@
$(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE
$(call if_changed,image)

3
arch/cris/arch-v10/boot/compressed/decompress.ld
View File

@ -1,4 +1,5 @@
OUTPUT_FORMAT(elf32-us-cris)
/* OUTPUT_FORMAT(elf32-us-cris) */
OUTPUT_FORMAT(elf32-cris)
MEMORY
{

98
arch/cris/arch-v10/boot/compressed/head.S
View File

@ -15,77 +15,77 @@
#define COMMAND_LINE_MAGIC 0x87109563
;; Exported symbols
.globl _input_data
.globl input_data
.text
nop
di
;; We need to initialze DRAM registers before we start using the DRAM
cmp.d RAM_INIT_MAGIC, r8 ; Already initialized?
cmp.d RAM_INIT_MAGIC, $r8 ; Already initialized?
beq dram_init_finished
nop
#include "../../lib/dram_init.S"
dram_init_finished:
dram_init_finished:
;; Initiate the PA and PB ports
move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0
move.b r0, [R_PORT_PA_DATA]
move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, $r0
move.b $r0, [R_PORT_PA_DATA]
move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0
move.b r0, [R_PORT_PA_DIR]
move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, $r0
move.b $r0, [R_PORT_PA_DIR]
move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0
move.b r0, [R_PORT_PB_DATA]
move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, $r0
move.b $r0, [R_PORT_PB_DATA]
move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0
move.b r0, [R_PORT_PB_DIR]
move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, $r0
move.b $r0, [R_PORT_PB_DIR]
;; Setup the stack to a suitably high address.
;; We assume 8 MB is the minimum DRAM in an eLinux
;; product and put the sp at the top for now.
move.d 0x40800000, sp
move.d 0x40800000, $sp
;; Figure out where the compressed piggyback image is
;; in the flash (since we wont try to copy it to DRAM
;; before unpacking). It is at _edata, but in flash.
;; Use (_edata - basse) as offset to the current PC.
basse: move.d pc, r5
and.d 0x7fffffff, r5 ; strip any non-cache bit
subq 2, r5 ; compensate for the move.d pc instr
move.d r5, r0 ; save for later - flash address of 'basse'
add.d _edata, r5
sub.d basse, r5 ; r5 = flash address of '_edata'
basse: move.d $pc, $r5
and.d 0x7fffffff, $r5 ; strip any non-cache bit
subq 2, $r5 ; compensate for the move.d $pc instr
move.d $r5, $r0 ; save for later - flash address of 'basse'
add.d _edata, $r5
sub.d basse, $r5 ; $r5 = flash address of '_edata'
;; Copy text+data to DRAM
move.d basse, r1 ; destination
move.d _edata, r2 ; end destination
1: move.w [r0+], r3
move.w r3, [r1+]
cmp.d r2, r1
move.d basse, $r1 ; destination
move.d _edata, $r2 ; end destination
1: move.w [$r0+], $r3
move.w $r3, [$r1+]
cmp.d $r2, $r1
bcs 1b
nop
move.d r5, [_input_data] ; for the decompressor
move.d $r5, [input_data] ; for the decompressor
;; Clear the decompressors BSS (between _edata and _end)
moveq 0, r0
move.d _edata, r1
move.d _end, r2
1: move.w r0, [r1+]
cmp.d r2, r1
moveq 0, $r0
move.d _edata, $r1
move.d _end, $r2
1: move.w $r0, [$r1+]
cmp.d $r2, $r1
bcs 1b
nop
@ -94,16 +94,16 @@ basse: move.d pc, r5
move.d $r10, [$r12]
move.d _cmd_line_addr, $r12
move.d $r11, [$r12]
;; Do the decompression and save compressed size in _inptr
jsr _decompress_kernel
;; Put start address of root partition in r9 so the kernel can use it
;; Do the decompression and save compressed size in inptr
jsr decompress_kernel
;; Put start address of root partition in $r9 so the kernel can use it
;; when mounting from flash
move.d [_input_data], r9 ; flash address of compressed kernel
add.d [_inptr], r9 ; size of compressed kernel
move.d [input_data], $r9 ; flash address of compressed kernel
add.d [inptr], $r9 ; size of compressed kernel
;; Restore command line magic and address.
move.d _cmd_line_magic, $r10
@ -112,12 +112,12 @@ basse: move.d pc, r5
move.d [$r11], $r11
;; Enter the decompressed kernel
move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized
move.d RAM_INIT_MAGIC, $r8 ; Tell kernel that DRAM is initialized
jump 0x40004000 ; kernel is linked to this address
.data
_input_data:
input_data:
.dword 0 ; used by the decompressor
_cmd_line_magic:
.dword 0

144
arch/cris/arch-v10/boot/compressed/misc.c
View File

@ -29,12 +29,10 @@
#define OF(args) args
#define STATIC static
void* memset(void* s, int c, size_t n);
void* memcpy(void* __dest, __const void* __src,
size_t __n);
#define memzero(s, n) memset ((s), 0, (n))
void *memset(void *s, int c, size_t n);
void *memcpy(void *__dest, __const void *__src, size_t __n);
#define memzero(s, n) memset((s), 0, (n))
typedef unsigned char uch;
typedef unsigned short ush;
@ -62,57 +60,69 @@ static unsigned outcnt = 0; /* bytes in output buffer */
#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
#define RESERVED 0xC0 /* bit 6,7: reserved */
#define get_byte() inbuf[inptr++]
#define get_byte() (inbuf[inptr++])
/* Diagnostic functions */
#ifdef DEBUG
# define Assert(cond,msg) {if(!(cond)) error(msg);}
# define Assert(cond, msg) do { \
if (!(cond)) \
error(msg); \
} while (0)
# define Trace(x) fprintf x
# define Tracev(x) {if (verbose) fprintf x ;}
# define Tracevv(x) {if (verbose>1) fprintf x ;}
# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
# define Tracev(x) do { \
if (verbose) \
fprintf x; \
} while (0)
# define Tracevv(x) do { \
if (verbose > 1) \
fprintf x; \
} while (0)
# define Tracec(c, x) do { \
if (verbose && (c)) \
fprintf x; \
} while (0)
# define Tracecv(c, x) do { \
if (verbose > 1 && (c)) \
fprintf x; \
} while (0)
#else
# define Assert(cond,msg)
# define Assert(cond, msg)
# define Trace(x)
# define Tracev(x)
# define Tracevv(x)
# define Tracec(c,x)
# define Tracecv(c,x)
# define Tracec(c, x)
# define Tracecv(c, x)
#endif
static int fill_inbuf(void);
static void flush_window(void);
static void error(char *m);
static void gzip_mark(void **);
static void gzip_release(void **);
extern char *input_data; /* lives in head.S */
static long bytes_out = 0;
static uch *output_data;
static unsigned long output_ptr = 0;
static void *malloc(int size);
static void free(void *where);
static void error(char *m);
static void gzip_mark(void **);
static void gzip_release(void **);
static void puts(const char *);
/* the "heap" is put directly after the BSS ends, at end */
extern int end;
static long free_mem_ptr = (long)&end;
extern int _end;
static long free_mem_ptr = (long)&_end;
#include "../../../../../lib/inflate.c"
static void *malloc(int size)
{
void *p;
if (size <0) error("Malloc error");
if (size < 0)
error("Malloc error");
free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */
@ -142,44 +152,47 @@ static void
puts(const char *s)
{
#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
while(*s) {
while (*s) {
#ifdef CONFIG_ETRAX_DEBUG_PORT0
while(!(*R_SERIAL0_STATUS & (1 << 5))) ;
while (!(*R_SERIAL0_STATUS & (1 << 5))) ;
*R_SERIAL0_TR_DATA = *s++;
#endif
#ifdef CONFIG_ETRAX_DEBUG_PORT1
while(!(*R_SERIAL1_STATUS & (1 << 5))) ;
while (!(*R_SERIAL1_STATUS & (1 << 5))) ;
*R_SERIAL1_TR_DATA = *s++;
#endif
#ifdef CONFIG_ETRAX_DEBUG_PORT2
while(!(*R_SERIAL2_STATUS & (1 << 5))) ;
while (!(*R_SERIAL2_STATUS & (1 << 5))) ;
*R_SERIAL2_TR_DATA = *s++;
#endif
#ifdef CONFIG_ETRAX_DEBUG_PORT3
while(!(*R_SERIAL3_STATUS & (1 << 5))) ;
while (!(*R_SERIAL3_STATUS & (1 << 5))) ;
*R_SERIAL3_TR_DATA = *s++;
#endif
}
#endif
}
void*
memset(void* s, int c, size_t n)
void *memset(void *s, int c, size_t n)
{
int i;
char *ss = (char*)s;
char *ss = (char *)s;
for (i=0;i<n;i++) ss[i] = c;
for (i = 0; i < n; i++)
ss[i] = c;
return s;
}
void*
memcpy(void* __dest, __const void* __src,
size_t __n)
void *memcpy(void *__dest, __const void *__src, size_t __n)
{
int i;
char *d = (char *)__dest, *s = (char *)__src;
for (i=0;i<__n;i++) d[i] = s[i];
for (i = 0; i < __n; i++)
d[i] = s[i];
return __dest;
}
/* ===========================================================================
@ -187,46 +200,44 @@ memcpy(void* __dest, __const void* __src,
* (Used for the decompressed data only.)
*/
static void
flush_window()
static void flush_window(void)
{
ulg c = crc; /* temporary variable */
unsigned n;
uch *in, *out, ch;
in = window;
out = &output_data[output_ptr];
for (n = 0; n < outcnt; n++) {
ch = *out++ = *in++;
c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
}
crc = c;
bytes_out += (ulg)outcnt;
output_ptr += (ulg)outcnt;
outcnt = 0;
ulg c = crc; /* temporary variable */
unsigned n;
uch *in, *out, ch;
in = window;
out = &output_data[output_ptr];
for (n = 0; n < outcnt; n++) {
ch = *out = *in;
out++;
in++;
c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
}
crc = c;
bytes_out += (ulg)outcnt;
output_ptr += (ulg)outcnt;
outcnt = 0;
}
static void
error(char *x)
static void error(char *x)
{
puts("\n\n");
puts(x);
puts("\n\n -- System halted\n");
while(1); /* Halt */
while (1); /* Halt */
}
void
setup_normal_output_buffer()
void setup_normal_output_buffer(void)
{
output_data = (char *)KERNEL_LOAD_ADR;
}
void
decompress_kernel()
void decompress_kernel(void)
{
char revision;
/* input_data is set in head.S */
inbuf = input_data;
@ -257,11 +268,10 @@ decompress_kernel()
makecrc();
__asm__ volatile ("move vr,%0" : "=rm" (revision));
if (revision < 10)
{
__asm__ volatile ("move $vr,%0" : "=rm" (revision));
if (revision < 10) {
puts("You need an ETRAX 100LX to run linux 2.6\n");
while(1);
while (1);
}
puts("Uncompressing Linux...\n");

9
arch/cris/arch-v10/boot/rescue/Makefile
View File

@ -2,12 +2,9 @@
# Makefile for rescue (bootstrap) code
#
CC = gcc-cris -mlinux $(LINUXINCLUDE)
ccflags-y += -O2
asflags-y += -traditional
LD = gcc-cris -mlinux -nostdlib
ldflags-y += -T $(obj)/rescue.ld
OBJCOPY = objcopy-cris
ccflags-y += -O2 $(LINUXINCLUDE)
asflags-y += $(LINUXINCLUDE)
ldflags-y += -T $(srctree)/$(obj)/rescue.ld
OBJCOPYFLAGS = -O binary --remove-section=.bss
obj-$(CONFIG_ETRAX_AXISFLASHMAP) = head.o
OBJECT := $(obj)/head.o

2
arch/cris/arch-v10/drivers/pcf8563.c
View File

@ -233,7 +233,7 @@ int pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
if (copy_to_user((struct rtc_time *) arg, &tm,
sizeof tm)) {
spin_unlock(&rtc_lock);
mutex_unlock(&rtc_lock);
return -EFAULT;
}

20
arch/cris/arch-v10/kernel/debugport.c
View File

@ -426,12 +426,18 @@ static int dummy_write(struct tty_struct * tty,
return count;
}
static int
dummy_write_room(struct tty_struct *tty)
static int dummy_write_room(struct tty_struct *tty)
{
return 8192;
}
static const struct tty_operations dummy_ops = {
.open = dummy_open,
.close = dummy_close,
.write = dummy_write,
.write_room = dummy_write_room,
};
void __init
init_dummy_console(void)
{
@ -444,14 +450,14 @@ init_dummy_console(void)
dummy_driver.type = TTY_DRIVER_TYPE_SERIAL;
dummy_driver.subtype = SERIAL_TYPE_NORMAL;
dummy_driver.init_termios = tty_std_termios;
/* Normally B9600 default... */
dummy_driver.init_termios.c_cflag =
B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
B115200 | CS8 | CREAD | HUPCL | CLOCAL;
dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
dummy_driver.init_termios.c_ispeed = 115200;
dummy_driver.init_termios.c_ospeed = 115200;
dummy_driver.open = dummy_open;
dummy_driver.close = dummy_close;
dummy_driver.write = dummy_write;
dummy_driver.write_room = dummy_write_room;
dummy_driver.ops = &dummy_ops;
if (tty_register_driver(&dummy_driver))
panic("Couldn't register dummy serial driver\n");
}

1
arch/cris/arch-v32/boot/Makefile
View File

@ -2,7 +2,6 @@
# arch/cris/arch-v32/boot/Makefile
#
OBJCOPY = objcopy-cris
OBJCOPYFLAGS = -O binary -R .note -R .comment
subdir- := compressed rescue

6
arch/cris/arch-v32/boot/compressed/Makefile
View File

@ -2,14 +2,10 @@
# arch/cris/arch-v32/boot/compressed/Makefile
#
CC = gcc-cris -mlinux -march=v32 $(LINUXINCLUDE)
asflags-y += -I $(srctree)/include/asm/mach/ -I $(srctree)/include/asm/arch
ccflags-y += -O2 -I $(srctree)/include/asm/mach/ -I $(srctree)/include/asm/arch
LD = gcc-cris -mlinux -march=v32 -nostdlib
ldflags-y += -T $(obj)/decompress.ld
obj-y = head.o misc.o
ldflags-y += -T $(srctree)/$(obj)/decompress.ld
OBJECTS = $(obj)/head.o $(obj)/misc.o
OBJCOPY = objcopy-cris
OBJCOPYFLAGS = -O binary --remove-section=.bss
quiet_cmd_image = BUILD $@

3
arch/cris/arch-v32/boot/rescue/Makefile
View File

@ -7,9 +7,8 @@ ccflags-y += -O2 -I $(srctree)/include/asm/arch/mach/ \
-I $(srctree)/include/asm/arch
asflags-y += -I $(srctree)/include/asm/arch/mach/ -I $(srctree)/include/asm/arch
LD = gcc-cris -mlinux -march=v32 -nostdlib
ldflags-y += -T $(obj)/rescue.ld
ldflags-y += -T $(srctree)/$(obj)/rescue.ld
LDPOSTFLAGS = -lgcc
OBJCOPY = objcopy-cris
OBJCOPYFLAGS = -O binary --remove-section=.bss
obj-$(CONFIG_ETRAX_AXISFLASHMAP) = head.o
OBJECT := $(obj)/head.o

2
arch/cris/arch-v32/drivers/pcf8563.c
View File

@ -229,7 +229,7 @@ int pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
if (copy_to_user((struct rtc_time *) arg, &tm,
sizeof tm)) {
spin_unlock(&rtc_lock);
mutex_unlock(&rtc_lock);
return -EFAULT;
}

30
arch/frv/mb93090-mb00/pci-frv.c
View File

@ -19,36 +19,6 @@
#include "pci-frv.h"
#if 0
void
pcibios_update_resource(struct pci_dev *dev, struct resource *root,
struct resource *res, int resource)
{
u32 new, check;
int reg;
new = res->start | (res->flags & PCI_REGION_FLAG_MASK);
if (resource < 6) {
reg = PCI_BASE_ADDRESS_0 + 4*resource;
} else if (resource == PCI_ROM_RESOURCE) {
res->flags |= IORESOURCE_ROM_ENABLE;
new |= PCI_ROM_ADDRESS_ENABLE;
reg = dev->rom_base_reg;
} else {
/* Somebody might have asked allocation of a non-standard resource */
return;
}
pci_write_config_dword(dev, reg, new);
pci_read_config_dword(dev, reg, &check);
if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) {
printk(KERN_ERR "PCI: Error while updating region "
"%s/%d (%08x != %08x)\n", pci_name(dev), resource,
new, check);
}
}
#endif
/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the

4
arch/ia64/Kconfig
View File

@ -540,8 +540,8 @@ config KEXEC
strongly in flux, so no good recommendation can be made.
config CRASH_DUMP
bool "kernel crash dumps (EXPERIMENTAL)"
depends on EXPERIMENTAL && IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
bool "kernel crash dumps"
depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
help
Generate crash dump after being started by kexec.

6
arch/ia64/Makefile
View File

@ -100,3 +100,9 @@ define archhelp
echo ' boot - Build vmlinux and bootloader for Ski simulator'
echo '* unwcheck - Check vmlinux for invalid unwind info'
endef
archprepare: make_nr_irqs_h FORCE
PHONY += make_nr_irqs_h FORCE
make_nr_irqs_h: FORCE
$(Q)$(MAKE) $(build)=arch/ia64/kernel include/asm-ia64/nr-irqs.h

46
arch/ia64/hp/sim/simserial.c
View File

@ -193,18 +193,6 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
* -------------------------------------------------------------------
*/
#if 0
/*
* not really used in our situation so keep them commented out for now
*/
static DECLARE_TASK_QUEUE(tq_serial); /* used to be at the top of the file */
static void do_serial_bh(void)
{
run_task_queue(&tq_serial);
printk(KERN_ERR "do_serial_bh: called\n");
}
#endif
static void do_softint(struct work_struct *private_)
{
printk(KERN_ERR "simserial: do_softint called\n");
@ -351,11 +339,7 @@ static void rs_flush_buffer(struct tty_struct *tty)
info->xmit.head = info->xmit.tail = 0;
local_irq_restore(flags);
wake_up_interruptible(&tty->write_wait);
if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
tty->ldisc.write_wakeup)
(tty->ldisc.write_wakeup)(tty);
tty_wakeup(tty);
}
/*
@ -404,12 +388,6 @@ static void rs_unthrottle(struct tty_struct * tty)
printk(KERN_INFO "simrs_unthrottle called\n");
}
/*
* rs_break() --- routine which turns the break handling on or off
*/
static void rs_break(struct tty_struct *tty, int break_state)
{
}
static int rs_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
@ -422,14 +400,6 @@ static int rs_ioctl(struct tty_struct *tty, struct file * file,
}
switch (cmd) {
case TIOCMGET:
printk(KERN_INFO "rs_ioctl: TIOCMGET called\n");
return -EINVAL;
case TIOCMBIS:
case TIOCMBIC:
case TIOCMSET:
printk(KERN_INFO "rs_ioctl: TIOCMBIS/BIC/SET called\n");
return -EINVAL;
case TIOCGSERIAL:
printk(KERN_INFO "simrs_ioctl TIOCGSERIAL called\n");
return 0;
@ -488,14 +458,6 @@ static int rs_ioctl(struct tty_struct *tty, struct file * file,
static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
{
unsigned int cflag = tty->termios->c_cflag;
if ( (cflag == old_termios->c_cflag)
&& ( RELEVANT_IFLAG(tty->termios->c_iflag)
== RELEVANT_IFLAG(old_termios->c_iflag)))
return;
/* Handle turning off CRTSCTS */
if ((old_termios->c_cflag & CRTSCTS) &&
!(tty->termios->c_cflag & CRTSCTS)) {
@ -623,9 +585,8 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
* the line discipline to only process XON/XOFF characters.
*/
shutdown(info);
if (tty->ops->flush_buffer)
tty->ops->flush_buffer(tty);
if (tty->ldisc.flush_buffer) tty->ldisc.flush_buffer(tty);
rs_flush_buffer(tty);
tty_ldisc_flush(tty);
info->event = 0;
info->tty = NULL;
if (info->blocked_open) {
@ -955,7 +916,6 @@ static const struct tty_operations hp_ops = {
.stop = rs_stop,
.start = rs_start,
.hangup = rs_hangup,
.break_ctl = rs_break,
.wait_until_sent = rs_wait_until_sent,
.read_proc = rs_read_proc,
};

44
arch/ia64/kernel/Makefile
View File

@ -36,6 +36,8 @@ obj-$(CONFIG_PCI_MSI) += msi_ia64.o
mca_recovery-y += mca_drv.o mca_drv_asm.o
obj-$(CONFIG_IA64_MC_ERR_INJECT)+= err_inject.o
obj-$(CONFIG_PARAVIRT) += paravirt.o paravirtentry.o
obj-$(CONFIG_IA64_ESI) += esi.o
ifneq ($(CONFIG_IA64_ESI),)
obj-y += esi_stub.o # must be in kernel proper
@ -70,3 +72,45 @@ $(obj)/gate-syms.o: $(obj)/gate.lds $(obj)/gate.o FORCE
# We must build gate.so before we can assemble it.
# Note: kbuild does not track this dependency due to usage of .incbin
$(obj)/gate-data.o: $(obj)/gate.so
# Calculate NR_IRQ = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, ...) based on config
define sed-y
"/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"
endef
quiet_cmd_nr_irqs = GEN $@
define cmd_nr_irqs
(set -e; \
echo "#ifndef __ASM_NR_IRQS_H__"; \
echo "#define __ASM_NR_IRQS_H__"; \
echo "/*"; \
echo " * DO NOT MODIFY."; \
echo " *"; \
echo " * This file was generated by Kbuild"; \
echo " *"; \
echo " */"; \
echo ""; \
sed -ne $(sed-y) $<; \
echo ""; \
echo "#endif" ) > $@
endef
# We use internal kbuild rules to avoid the "is up to date" message from make
arch/$(SRCARCH)/kernel/nr-irqs.s: $(srctree)/arch/$(SRCARCH)/kernel/nr-irqs.c \
$(wildcard $(srctree)/include/asm-ia64/*/irq.h)
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,cc_s_c)
include/asm-ia64/nr-irqs.h: arch/$(SRCARCH)/kernel/nr-irqs.s
$(Q)mkdir -p $(dir $@)
$(call cmd,nr_irqs)
clean-files += $(objtree)/include/asm-ia64/nr-irqs.h
#
# native ivt.S and entry.S
#
ASM_PARAVIRT_OBJS = ivt.o entry.o
define paravirtualized_native
AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_NATIVE
endef
$(foreach obj,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_native,$(obj))))

5
arch/ia64/kernel/acpi.c
View File

@ -774,7 +774,7 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
*/
#ifdef CONFIG_ACPI_HOTPLUG_CPU
static
int acpi_map_cpu2node(acpi_handle handle, int cpu, long physid)
int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
{
#ifdef CONFIG_ACPI_NUMA
int pxm_id;
@ -854,8 +854,7 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
union acpi_object *obj;
struct acpi_madt_local_sapic *lsapic;
cpumask_t tmp_map;
long physid;
int cpu;
int cpu, physid;
if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
return -EINVAL;

4
arch/ia64/kernel/cpufreq/acpi-cpufreq.c
View File

@ -51,7 +51,7 @@ processor_set_pstate (
retval = ia64_pal_set_pstate((u64)value);
if (retval) {
dprintk("Failed to set freq to 0x%x, with error 0x%x\n",
dprintk("Failed to set freq to 0x%x, with error 0x%lx\n",
value, retval);
return -ENODEV;
}
@ -74,7 +74,7 @@ processor_get_pstate (
if (retval)
dprintk("Failed to get current freq with "
"error 0x%x, idx 0x%x\n", retval, *value);
"error 0x%lx, idx 0x%x\n", retval, *value);
return (int)retval;
}

115
arch/ia64/kernel/entry.S
View File

@ -22,6 +22,11 @@
* Patrick O'Rourke <orourke@missioncriticallinux.com>
* 11/07/2000
*/
/*
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
* pv_ops.
*/
/*
* Global (preserved) predicate usage on syscall entry/exit path:
*
@ -45,6 +50,7 @@
#include "minstate.h"
#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE
/*
* execve() is special because in case of success, we need to
* setup a null register window frame.
@ -173,6 +179,7 @@ GLOBAL_ENTRY(sys_clone)
mov rp=loc0
br.ret.sptk.many rp
END(sys_clone)
#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
/*
* prev_task <- ia64_switch_to(struct task_struct *next)
@ -180,7 +187,7 @@ END(sys_clone)
* called. The code starting at .map relies on this. The rest of the code
* doesn't care about the interrupt masking status.
*/
GLOBAL_ENTRY(ia64_switch_to)
GLOBAL_ENTRY(__paravirt_switch_to)
.prologue
alloc r16=ar.pfs,1,0,0,0
DO_SAVE_SWITCH_STACK
@ -204,7 +211,7 @@ GLOBAL_ENTRY(ia64_switch_to)
;;
.done:
ld8 sp=[r21] // load kernel stack pointer of new task
mov IA64_KR(CURRENT)=in0 // update "current" application register
MOV_TO_KR(CURRENT, in0, r8, r9) // update "current" application register
mov r8=r13 // return pointer to previously running task
mov r13=in0 // set "current" pointer
;;
@ -216,26 +223,25 @@ GLOBAL_ENTRY(ia64_switch_to)
br.ret.sptk.many rp // boogie on out in new context
.map:
rsm psr.ic // interrupts (psr.i) are already disabled here
RSM_PSR_IC(r25) // interrupts (psr.i) are already disabled here
movl r25=PAGE_KERNEL
;;
srlz.d
or r23=r25,r20 // construct PA | page properties
mov r25=IA64_GRANULE_SHIFT<<2
;;
mov cr.itir=r25
mov cr.ifa=in0 // VA of next task...
MOV_TO_ITIR(p0, r25, r8)
MOV_TO_IFA(in0, r8) // VA of next task...
;;
mov r25=IA64_TR_CURRENT_STACK
mov IA64_KR(CURRENT_STACK)=r26 // remember last page we mapped...
MOV_TO_KR(CURRENT_STACK, r26, r8, r9) // remember last page we mapped...
;;
itr.d dtr[r25]=r23 // wire in new mapping...
ssm psr.ic // reenable the psr.ic bit
;;
srlz.d
SSM_PSR_IC_AND_SRLZ_D(r8, r9) // reenable the psr.ic bit
br.cond.sptk .done
END(ia64_switch_to)
END(__paravirt_switch_to)
#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE
/*
* Note that interrupts are enabled during save_switch_stack and load_switch_stack. This
* means that we may get an interrupt with "sp" pointing to the new kernel stack while
@ -375,7 +381,7 @@ END(save_switch_stack)
* - b7 holds address to return to
* - must not touch r8-r11
*/
ENTRY(load_switch_stack)
GLOBAL_ENTRY(load_switch_stack)
.prologue
.altrp b7
@ -571,7 +577,7 @@ GLOBAL_ENTRY(ia64_trace_syscall)
.ret3:
(pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk
(pUStk) rsm psr.i // disable interrupts
br.cond.sptk .work_pending_syscall_end
br.cond.sptk ia64_work_pending_syscall_end
strace_error:
ld8 r3=[r2] // load pt_regs.r8
@ -636,8 +642,17 @@ GLOBAL_ENTRY(ia64_ret_from_syscall)
adds r2=PT(R8)+16,sp // r2 = &pt_regs.r8
mov r10=r0 // clear error indication in r10
(p7) br.cond.spnt handle_syscall_error // handle potential syscall failure
#ifdef CONFIG_PARAVIRT
;;
br.cond.sptk.few ia64_leave_syscall
;;
#endif /* CONFIG_PARAVIRT */
END(ia64_ret_from_syscall)
#ifndef CONFIG_PARAVIRT
// fall through
#endif
#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
/*
* ia64_leave_syscall(): Same as ia64_leave_kernel, except that it doesn't
* need to switch to bank 0 and doesn't restore the scratch registers.
@ -682,7 +697,7 @@ END(ia64_ret_from_syscall)
* ar.csd: cleared
* ar.ssd: cleared
*/
ENTRY(ia64_leave_syscall)
GLOBAL_ENTRY(__paravirt_leave_syscall)
PT_REGS_UNWIND_INFO(0)
/*
* work.need_resched etc. mustn't get changed by this CPU before it returns to
@ -692,11 +707,11 @@ ENTRY(ia64_leave_syscall)
* extra work. We always check for extra work when returning to user-level.
* With CONFIG_PREEMPT, we also check for extra work when the preempt_count
* is 0. After extra work processing has been completed, execution
* resumes at .work_processed_syscall with p6 set to 1 if the extra-work-check
* resumes at ia64_work_processed_syscall with p6 set to 1 if the extra-work-check
* needs to be redone.
*/
#ifdef CONFIG_PREEMPT
rsm psr.i // disable interrupts
RSM_PSR_I(p0, r2, r18) // disable interrupts
cmp.eq pLvSys,p0=r0,r0 // pLvSys=1: leave from syscall
(pKStk) adds r20=TI_PRE_COUNT+IA64_TASK_SIZE,r13
;;
@ -706,11 +721,12 @@ ENTRY(ia64_leave_syscall)
;;
cmp.eq p6,p0=r21,r0 // p6 <- pUStk || (preempt_count == 0)
#else /* !CONFIG_PREEMPT */
(pUStk) rsm psr.i
RSM_PSR_I(pUStk, r2, r18)
cmp.eq pLvSys,p0=r0,r0 // pLvSys=1: leave from syscall
(pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk
#endif
.work_processed_syscall:
.global __paravirt_work_processed_syscall;
__paravirt_work_processed_syscall:
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
adds r2=PT(LOADRS)+16,r12
(pUStk) mov.m r22=ar.itc // fetch time at leave
@ -744,7 +760,7 @@ ENTRY(ia64_leave_syscall)
(pNonSys) break 0 // bug check: we shouldn't be here if pNonSys is TRUE!
;;
invala // M0|1 invalidate ALAT
rsm psr.i | psr.ic // M2 turn off interrupts and interruption collection
RSM_PSR_I_IC(r28, r29, r30) // M2 turn off interrupts and interruption collection
cmp.eq p9,p0=r0,r0 // A set p9 to indicate that we should restore cr.ifs
ld8 r29=[r2],16 // M0|1 load cr.ipsr
@ -765,7 +781,7 @@ ENTRY(ia64_leave_syscall)
;;
#endif
ld8 r26=[r2],PT(B0)-PT(AR_PFS) // M0|1 load ar.pfs
(pKStk) mov r22=psr // M2 read PSR now that interrupts are disabled
MOV_FROM_PSR(pKStk, r22, r21) // M2 read PSR now that interrupts are disabled
nop 0
;;
ld8 r21=[r2],PT(AR_RNAT)-PT(B0) // M0|1 load b0
@ -798,7 +814,7 @@ ENTRY(ia64_leave_syscall)
srlz.d // M0 ensure interruption collection is off (for cover)
shr.u r18=r19,16 // I0|1 get byte size of existing "dirty" partition
cover // B add current frame into dirty partition & set cr.ifs
COVER // B add current frame into dirty partition & set cr.ifs
;;
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mov r19=ar.bsp // M2 get new backing store pointer
@ -823,8 +839,9 @@ ENTRY(ia64_leave_syscall)
mov.m ar.ssd=r0 // M2 clear ar.ssd
mov f11=f0 // F clear f11
br.cond.sptk.many rbs_switch // B
END(ia64_leave_syscall)
END(__paravirt_leave_syscall)
#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE
#ifdef CONFIG_IA32_SUPPORT
GLOBAL_ENTRY(ia64_ret_from_ia32_execve)
PT_REGS_UNWIND_INFO(0)
@ -835,10 +852,20 @@ GLOBAL_ENTRY(ia64_ret_from_ia32_execve)
st8.spill [r2]=r8 // store return value in slot for r8 and set unat bit
.mem.offset 8,0
st8.spill [r3]=r0 // clear error indication in slot for r10 and set unat bit
#ifdef CONFIG_PARAVIRT
;;
// don't fall through, ia64_leave_kernel may be #define'd
br.cond.sptk.few ia64_leave_kernel
;;
#endif /* CONFIG_PARAVIRT */
END(ia64_ret_from_ia32_execve)
#ifndef CONFIG_PARAVIRT
// fall through
#endif
#endif /* CONFIG_IA32_SUPPORT */
GLOBAL_ENTRY(ia64_leave_kernel)
#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
GLOBAL_ENTRY(__paravirt_leave_kernel)
PT_REGS_UNWIND_INFO(0)
/*
* work.need_resched etc. mustn't get changed by this CPU before it returns to
@ -852,7 +879,7 @@ GLOBAL_ENTRY(ia64_leave_kernel)
* needs to be redone.
*/
#ifdef CONFIG_PREEMPT
rsm psr.i // disable interrupts
RSM_PSR_I(p0, r17, r31) // disable interrupts
cmp.eq p0,pLvSys=r0,r0 // pLvSys=0: leave from kernel
(pKStk) adds r20=TI_PRE_COUNT+IA64_TASK_SIZE,r13
;;
@ -862,7 +889,7 @@ GLOBAL_ENTRY(ia64_leave_kernel)
;;
cmp.eq p6,p0=r21,r0 // p6 <- pUStk || (preempt_count == 0)
#else
(pUStk) rsm psr.i
RSM_PSR_I(pUStk, r17, r31)
cmp.eq p0,pLvSys=r0,r0 // pLvSys=0: leave from kernel
(pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk
#endif
@ -910,7 +937,7 @@ GLOBAL_ENTRY(ia64_leave_kernel)
mov ar.csd=r30
mov ar.ssd=r31
;;
rsm psr.i | psr.ic // initiate turning off of interrupt and interruption collection
RSM_PSR_I_IC(r23, r22, r25) // initiate turning off of interrupt and interruption collection
invala // invalidate ALAT
;;
ld8.fill r22=[r2],24
@ -942,7 +969,7 @@ GLOBAL_ENTRY(ia64_leave_kernel)
mov ar.ccv=r15
;;
ldf.fill f11=[r2]
bsw.0 // switch back to bank 0 (no stop bit required beforehand...)
BSW_0(r2, r3, r15) // switch back to bank 0 (no stop bit required beforehand...)
;;
(pUStk) mov r18=IA64_KR(CURRENT)// M2 (12 cycle read latency)
adds r16=PT(CR_IPSR)+16,r12
@ -950,12 +977,12 @@ GLOBAL_ENTRY(ia64_leave_kernel)
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
.pred.rel.mutex pUStk,pKStk
(pKStk) mov r22=psr // M2 read PSR now that interrupts are disabled
MOV_FROM_PSR(pKStk, r22, r29) // M2 read PSR now that interrupts are disabled
(pUStk) mov.m r22=ar.itc // M fetch time at leave
nop.i 0
;;
#else
(pKStk) mov r22=psr // M2 read PSR now that interrupts are disabled
MOV_FROM_PSR(pKStk, r22, r29) // M2 read PSR now that interrupts are disabled
nop.i 0
nop.i 0
;;
@ -1027,7 +1054,7 @@ GLOBAL_ENTRY(ia64_leave_kernel)
* NOTE: alloc, loadrs, and cover can't be predicated.
*/
(pNonSys) br.cond.dpnt dont_preserve_current_frame
cover // add current frame into dirty partition and set cr.ifs
COVER // add current frame into dirty partition and set cr.ifs
;;
mov r19=ar.bsp // get new backing store pointer
rbs_switch:
@ -1130,16 +1157,16 @@ skip_rbs_switch:
(pKStk) dep r29=r22,r29,21,1 // I0 update ipsr.pp with psr.pp
(pLvSys)mov r16=r0 // A clear r16 for leave_syscall, no-op otherwise
;;
mov cr.ipsr=r29 // M2
MOV_TO_IPSR(p0, r29, r25) // M2
mov ar.pfs=r26 // I0
(pLvSys)mov r17=r0 // A clear r17 for leave_syscall, no-op otherwise
(p9) mov cr.ifs=r30 // M2
MOV_TO_IFS(p9, r30, r25)// M2
mov b0=r21 // I0
(pLvSys)mov r18=r0 // A clear r18 for leave_syscall, no-op otherwise
mov ar.fpsr=r20 // M2
mov cr.iip=r28 // M2
MOV_TO_IIP(r28, r25) // M2
nop 0
;;
(pUStk) mov ar.rnat=r24 // M2 must happen with RSE in lazy mode
@ -1148,7 +1175,7 @@ skip_rbs_switch:
mov ar.rsc=r27 // M2
mov pr=r31,-1 // I0
rfi // B
RFI // B
/*
* On entry:
@ -1174,35 +1201,36 @@ skip_rbs_switch:
;;
(pKStk) st4 [r20]=r21
#endif
ssm psr.i // enable interrupts
SSM_PSR_I(p0, p6, r2) // enable interrupts
br.call.spnt.many rp=schedule
.ret9: cmp.eq p6,p0=r0,r0 // p6 <- 1 (re-check)
rsm psr.i // disable interrupts
RSM_PSR_I(p0, r2, r20) // disable interrupts
;;
#ifdef CONFIG_PREEMPT
(pKStk) adds r20=TI_PRE_COUNT+IA64_TASK_SIZE,r13
;;
(pKStk) st4 [r20]=r0 // preempt_count() <- 0
#endif
(pLvSys)br.cond.sptk.few .work_pending_syscall_end
(pLvSys)br.cond.sptk.few __paravirt_pending_syscall_end
br.cond.sptk.many .work_processed_kernel
.notify:
(pUStk) br.call.spnt.many rp=notify_resume_user
.ret10: cmp.ne p6,p0=r0,r0 // p6 <- 0 (don't re-check)
(pLvSys)br.cond.sptk.few .work_pending_syscall_end
(pLvSys)br.cond.sptk.few __paravirt_pending_syscall_end
br.cond.sptk.many .work_processed_kernel
.work_pending_syscall_end:
.global __paravirt_pending_syscall_end;
__paravirt_pending_syscall_end:
adds r2=PT(R8)+16,r12
adds r3=PT(R10)+16,r12
;;
ld8 r8=[r2]
ld8 r10=[r3]
br.cond.sptk.many .work_processed_syscall
END(ia64_leave_kernel)
br.cond.sptk.many __paravirt_work_processed_syscall_target
END(__paravirt_leave_kernel)
#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE
ENTRY(handle_syscall_error)
/*
* Some system calls (e.g., ptrace, mmap) can return arbitrary values which could
@ -1244,7 +1272,7 @@ END(ia64_invoke_schedule_tail)
* We declare 8 input registers so the system call args get preserved,
* in case we need to restart a system call.
*/
ENTRY(notify_resume_user)
GLOBAL_ENTRY(notify_resume_user)
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
alloc loc1=ar.pfs,8,2,3,0 // preserve all eight input regs in case of syscall restart!
mov r9=ar.unat
@ -1306,7 +1334,7 @@ ENTRY(sys_rt_sigreturn)
adds sp=16,sp
;;
ld8 r9=[sp] // load new ar.unat
mov.sptk b7=r8,ia64_leave_kernel
mov.sptk b7=r8,ia64_native_leave_kernel
;;
mov ar.unat=r9
br.many b7
@ -1665,3 +1693,4 @@ sys_call_table:
data8 sys_timerfd_gettime
.org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls
#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */

41
arch/ia64/kernel/head.S
View File

@ -26,11 +26,14 @@
#include <asm/mmu_context.h>
#include <asm/asm-offsets.h>
#include <asm/pal.h>
#include <asm/paravirt.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/system.h>
#include <asm/mca_asm.h>
#include <linux/init.h>
#include <linux/linkage.h>
#ifdef CONFIG_HOTPLUG_CPU
#define SAL_PSR_BITS_TO_SET \
@ -367,6 +370,44 @@ start_ap:
;;
(isBP) st8 [r2]=r28 // save the address of the boot param area passed by the bootloader
#ifdef CONFIG_PARAVIRT
movl r14=hypervisor_setup_hooks
movl r15=hypervisor_type
mov r16=num_hypervisor_hooks
;;
ld8 r2=[r15]
;;
cmp.ltu p7,p0=r2,r16 // array size check
shladd r8=r2,3,r14
;;
(p7) ld8 r9=[r8]
;;
(p7) mov b1=r9
(p7) cmp.ne.unc p7,p0=r9,r0 // no actual branch to NULL
;;
(p7) br.call.sptk.many rp=b1
__INITDATA
default_setup_hook = 0 // Currently nothing needs to be done.
.weak xen_setup_hook
.global hypervisor_type
hypervisor_type:
data8 PARAVIRT_HYPERVISOR_TYPE_DEFAULT
// must have the same order with PARAVIRT_HYPERVISOR_TYPE_xxx
hypervisor_setup_hooks:
data8 default_setup_hook
data8 xen_setup_hook
num_hypervisor_hooks = (. - hypervisor_setup_hooks) / 8
.previous
#endif
#ifdef CONFIG_SMP
(isAP) br.call.sptk.many rp=start_secondary
.ret0:

45
arch/ia64/kernel/iosapic.c
View File

@ -585,6 +585,15 @@ static inline int irq_is_shared (int irq)
return (iosapic_intr_info[irq].count > 1);
}
struct irq_chip*
ia64_native_iosapic_get_irq_chip(unsigned long trigger)
{
if (trigger == IOSAPIC_EDGE)
return &irq_type_iosapic_edge;
else
return &irq_type_iosapic_level;
}
static int
register_intr (unsigned int gsi, int irq, unsigned char delivery,
unsigned long polarity, unsigned long trigger)
@ -635,13 +644,10 @@ register_intr (unsigned int gsi, int irq, unsigned char delivery,
iosapic_intr_info[irq].dmode = delivery;
iosapic_intr_info[irq].trigger = trigger;
if (trigger == IOSAPIC_EDGE)
irq_type = &irq_type_iosapic_edge;
else
irq_type = &irq_type_iosapic_level;
irq_type = iosapic_get_irq_chip(trigger);
idesc = irq_desc + irq;
if (idesc->chip != irq_type) {
if (irq_type != NULL && idesc->chip != irq_type) {
if (idesc->chip != &no_irq_type)
printk(KERN_WARNING
"%s: changing vector %d from %s to %s\n",
@ -973,6 +979,22 @@ iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
set_rte(gsi, irq, dest, 1);
}
void __init
ia64_native_iosapic_pcat_compat_init(void)
{
if (pcat_compat) {
/*
* Disable the compatibility mode interrupts (8259 style),
* needs IN/OUT support enabled.
*/
printk(KERN_INFO
"%s: Disabling PC-AT compatible 8259 interrupts\n",
__func__);
outb(0xff, 0xA1);
outb(0xff, 0x21);
}
}
void __init
iosapic_system_init (int system_pcat_compat)
{
@ -987,17 +1009,8 @@ iosapic_system_init (int system_pcat_compat)
}
pcat_compat = system_pcat_compat;
if (pcat_compat) {
/*
* Disable the compatibility mode interrupts (8259 style),
* needs IN/OUT support enabled.
*/
printk(KERN_INFO
"%s: Disabling PC-AT compatible 8259 interrupts\n",
__func__);
outb(0xff, 0xA1);
outb(0xff, 0x21);
}
if (pcat_compat)
iosapic_pcat_compat_init();
}
static inline int

19
arch/ia64/kernel/irq_ia64.c
View File

@ -196,7 +196,7 @@ static void clear_irq_vector(int irq)
}
int
assign_irq_vector (int irq)
ia64_native_assign_irq_vector (int irq)
{
unsigned long flags;
int vector, cpu;
@ -222,7 +222,7 @@ assign_irq_vector (int irq)
}
void
free_irq_vector (int vector)
ia64_native_free_irq_vector (int vector)
{
if (vector < IA64_FIRST_DEVICE_VECTOR ||
vector > IA64_LAST_DEVICE_VECTOR)
@ -600,7 +600,6 @@ static irqreturn_t dummy_handler (int irq, void *dev_id)
{
BUG();
}
extern irqreturn_t handle_IPI (int irq, void *dev_id);
static struct irqaction ipi_irqaction = {
.handler = handle_IPI,
@ -623,7 +622,7 @@ static struct irqaction tlb_irqaction = {
#endif
void
register_percpu_irq (ia64_vector vec, struct irqaction *action)
ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action)
{
irq_desc_t *desc;
unsigned int irq;
@ -638,13 +637,21 @@ register_percpu_irq (ia64_vector vec, struct irqaction *action)
}
void __init
init_IRQ (void)
ia64_native_register_ipi(void)
{
register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL);
#ifdef CONFIG_SMP
register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction);
register_percpu_irq(IA64_IPI_RESCHEDULE, &resched_irqaction);
register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &tlb_irqaction);
#endif
}
void __init
init_IRQ (void)
{
ia64_register_ipi();
register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL);
#ifdef CONFIG_SMP
#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG)
if (vector_domain_type != VECTOR_DOMAIN_NONE) {
BUG_ON(IA64_FIRST_DEVICE_VECTOR != IA64_IRQ_MOVE_VECTOR);

462
arch/ia64/kernel/ivt.S
View File

@ -12,6 +12,14 @@
*
* 00/08/23 Asit Mallick <asit.k.mallick@intel.com> TLB handling for SMP
* 00/12/20 David Mosberger-Tang <davidm@hpl.hp.com> DTLB/ITLB handler now uses virtual PT.
*
* Copyright (C) 2005 Hewlett-Packard Co
* Dan Magenheimer <dan.magenheimer@hp.com>
* Xen paravirtualization
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
* pv_ops.
* Yaozu (Eddie) Dong <eddie.dong@intel.com>
*/
/*
* This file defines the interruption vector table used by the CPU.
@ -102,13 +110,13 @@ ENTRY(vhpt_miss)
* - the faulting virtual address uses unimplemented address bits
* - the faulting virtual address has no valid page table mapping
*/
mov r16=cr.ifa // get address that caused the TLB miss
MOV_FROM_IFA(r16) // get address that caused the TLB miss
#ifdef CONFIG_HUGETLB_PAGE
movl r18=PAGE_SHIFT
mov r25=cr.itir
MOV_FROM_ITIR(r25)
#endif
;;
rsm psr.dt // use physical addressing for data
RSM_PSR_DT // use physical addressing for data
mov r31=pr // save the predicate registers
mov r19=IA64_KR(PT_BASE) // get page table base address
shl r21=r16,3 // shift bit 60 into sign bit
@ -168,21 +176,21 @@ ENTRY(vhpt_miss)
dep r21=r19,r20,3,(PAGE_SHIFT-3) // r21=pte_offset(pmd,addr)
;;
(p7) ld8 r18=[r21] // read *pte
mov r19=cr.isr // cr.isr bit 32 tells us if this is an insn miss
MOV_FROM_ISR(r19) // cr.isr bit 32 tells us if this is an insn miss
;;
(p7) tbit.z p6,p7=r18,_PAGE_P_BIT // page present bit cleared?
mov r22=cr.iha // get the VHPT address that caused the TLB miss
MOV_FROM_IHA(r22) // get the VHPT address that caused the TLB miss
;; // avoid RAW on p7
(p7) tbit.nz.unc p10,p11=r19,32 // is it an instruction TLB miss?
dep r23=0,r20,0,PAGE_SHIFT // clear low bits to get page address
;;
(p10) itc.i r18 // insert the instruction TLB entry
(p11) itc.d r18 // insert the data TLB entry
ITC_I_AND_D(p10, p11, r18, r24) // insert the instruction TLB entry and
// insert the data TLB entry
(p6) br.cond.spnt.many page_fault // handle bad address/page not present (page fault)
mov cr.ifa=r22
MOV_TO_IFA(r22, r24)
#ifdef CONFIG_HUGETLB_PAGE
(p8) mov cr.itir=r25 // change to default page-size for VHPT
MOV_TO_ITIR(p8, r25, r24) // change to default page-size for VHPT
#endif
/*
@ -192,7 +200,7 @@ ENTRY(vhpt_miss)
*/
adds r24=__DIRTY_BITS_NO_ED|_PAGE_PL_0|_PAGE_AR_RW,r23
;;
(p7) itc.d r24
ITC_D(p7, r24, r25)
;;
#ifdef CONFIG_SMP
/*
@ -234,7 +242,7 @@ ENTRY(vhpt_miss)
#endif
mov pr=r31,-1 // restore predicate registers
rfi
RFI
END(vhpt_miss)
.org ia64_ivt+0x400
@ -248,11 +256,11 @@ ENTRY(itlb_miss)
* mode, walk the page table, and then re-execute the PTE read and
* go on normally after that.
*/
mov r16=cr.ifa // get virtual address
MOV_FROM_IFA(r16) // get virtual address
mov r29=b0 // save b0
mov r31=pr // save predicates
.itlb_fault:
mov r17=cr.iha // get virtual address of PTE
MOV_FROM_IHA(r17) // get virtual address of PTE
movl r30=1f // load nested fault continuation point
;;
1: ld8 r18=[r17] // read *pte
@ -261,7 +269,7 @@ ENTRY(itlb_miss)
tbit.z p6,p0=r18,_PAGE_P_BIT // page present bit cleared?
(p6) br.cond.spnt page_fault
;;
itc.i r18
ITC_I(p0, r18, r19)
;;
#ifdef CONFIG_SMP
/*
@ -278,7 +286,7 @@ ENTRY(itlb_miss)
(p7) ptc.l r16,r20
#endif
mov pr=r31,-1
rfi
RFI
END(itlb_miss)
.org ia64_ivt+0x0800
@ -292,11 +300,11 @@ ENTRY(dtlb_miss)
* mode, walk the page table, and then re-execute the PTE read and
* go on normally after that.
*/
mov r16=cr.ifa // get virtual address
MOV_FROM_IFA(r16) // get virtual address
mov r29=b0 // save b0
mov r31=pr // save predicates
dtlb_fault:
mov r17=cr.iha // get virtual address of PTE
MOV_FROM_IHA(r17) // get virtual address of PTE
movl r30=1f // load nested fault continuation point
;;
1: ld8 r18=[r17] // read *pte
@ -305,7 +313,7 @@ dtlb_fault:
tbit.z p6,p0=r18,_PAGE_P_BIT // page present bit cleared?
(p6) br.cond.spnt page_fault
;;
itc.d r18
ITC_D(p0, r18, r19)
;;
#ifdef CONFIG_SMP
/*
@ -322,7 +330,7 @@ dtlb_fault:
(p7) ptc.l r16,r20
#endif
mov pr=r31,-1
rfi
RFI
END(dtlb_miss)
.org ia64_ivt+0x0c00
@ -330,9 +338,9 @@ END(dtlb_miss)
// 0x0c00 Entry 3 (size 64 bundles) Alt ITLB (19)
ENTRY(alt_itlb_miss)
DBG_FAULT(3)
mov r16=cr.ifa // get address that caused the TLB miss
MOV_FROM_IFA(r16) // get address that caused the TLB miss
movl r17=PAGE_KERNEL
mov r21=cr.ipsr
MOV_FROM_IPSR(p0, r21)
movl r19=(((1 << IA64_MAX_PHYS_BITS) - 1) & ~0xfff)
mov r31=pr
;;
@ -341,9 +349,9 @@ ENTRY(alt_itlb_miss)
;;
cmp.gt p8,p0=6,r22 // user mode
;;
(p8) thash r17=r16
THASH(p8, r17, r16, r23)
;;
(p8) mov cr.iha=r17
MOV_TO_IHA(p8, r17, r23)
(p8) mov r29=b0 // save b0
(p8) br.cond.dptk .itlb_fault
#endif
@ -358,9 +366,9 @@ ENTRY(alt_itlb_miss)
or r19=r19,r18 // set bit 4 (uncached) if the access was to region 6
(p8) br.cond.spnt page_fault
;;
itc.i r19 // insert the TLB entry
ITC_I(p0, r19, r18) // insert the TLB entry
mov pr=r31,-1
rfi
RFI
END(alt_itlb_miss)
.org ia64_ivt+0x1000
@ -368,11 +376,11 @@ END(alt_itlb_miss)
// 0x1000 Entry 4 (size 64 bundles) Alt DTLB (7,46)
ENTRY(alt_dtlb_miss)
DBG_FAULT(4)
mov r16=cr.ifa // get address that caused the TLB miss
MOV_FROM_IFA(r16) // get address that caused the TLB miss
movl r17=PAGE_KERNEL
mov r20=cr.isr
MOV_FROM_ISR(r20)
movl r19=(((1 << IA64_MAX_PHYS_BITS) - 1) & ~0xfff)
mov r21=cr.ipsr
MOV_FROM_IPSR(p0, r21)
mov r31=pr
mov r24=PERCPU_ADDR
;;
@ -381,9 +389,9 @@ ENTRY(alt_dtlb_miss)
;;
cmp.gt p8,p0=6,r22 // access to region 0-5
;;
(p8) thash r17=r16
THASH(p8, r17, r16, r25)
;;
(p8) mov cr.iha=r17
MOV_TO_IHA(p8, r17, r25)
(p8) mov r29=b0 // save b0
(p8) br.cond.dptk dtlb_fault
#endif
@ -402,7 +410,7 @@ ENTRY(alt_dtlb_miss)
tbit.nz p9,p0=r20,IA64_ISR_NA_BIT // is non-access bit on?
;;
(p10) sub r19=r19,r26
(p10) mov cr.itir=r25
MOV_TO_ITIR(p10, r25, r24)
cmp.ne p8,p0=r0,r23
(p9) cmp.eq.or.andcm p6,p7=IA64_ISR_CODE_LFETCH,r22 // check isr.code field
(p12) dep r17=-1,r17,4,1 // set ma=UC for region 6 addr
@ -411,11 +419,11 @@ ENTRY(alt_dtlb_miss)
dep r21=-1,r21,IA64_PSR_ED_BIT,1
;;
or r19=r19,r17 // insert PTE control bits into r19
(p6) mov cr.ipsr=r21
MOV_TO_IPSR(p6, r21, r24)
;;
(p7) itc.d r19 // insert the TLB entry
ITC_D(p7, r19, r18) // insert the TLB entry
mov pr=r31,-1
rfi
RFI
END(alt_dtlb_miss)
.org ia64_ivt+0x1400
@ -444,10 +452,10 @@ ENTRY(nested_dtlb_miss)
*
* Clobbered: b0, r18, r19, r21, r22, psr.dt (cleared)
*/
rsm psr.dt // switch to using physical data addressing
RSM_PSR_DT // switch to using physical data addressing
mov r19=IA64_KR(PT_BASE) // get the page table base address
shl r21=r16,3 // shift bit 60 into sign bit
mov r18=cr.itir
MOV_FROM_ITIR(r18)
;;
shr.u r17=r16,61 // get the region number into r17
extr.u r18=r18,2,6 // get the faulting page size
@ -507,33 +515,6 @@ ENTRY(ikey_miss)
FAULT(6)
END(ikey_miss)
//-----------------------------------------------------------------------------------
// call do_page_fault (predicates are in r31, psr.dt may be off, r16 is faulting address)
ENTRY(page_fault)
ssm psr.dt
;;
srlz.i
;;
SAVE_MIN_WITH_COVER
alloc r15=ar.pfs,0,0,3,0
mov out0=cr.ifa
mov out1=cr.isr
adds r3=8,r2 // set up second base pointer
;;
ssm psr.ic | PSR_DEFAULT_BITS
;;
srlz.i // guarantee that interruption collectin is on
;;
(p15) ssm psr.i // restore psr.i
movl r14=ia64_leave_kernel
;;
SAVE_REST
mov rp=r14
;;
adds out2=16,r12 // out2 = pointer to pt_regs
br.call.sptk.many b6=ia64_do_page_fault // ignore return address
END(page_fault)
.org ia64_ivt+0x1c00
/////////////////////////////////////////////////////////////////////////////////////////
// 0x1c00 Entry 7 (size 64 bundles) Data Key Miss (12,51)
@ -556,10 +537,10 @@ ENTRY(dirty_bit)
* page table TLB entry isn't present, we take a nested TLB miss hit where we look
* up the physical address of the L3 PTE and then continue at label 1 below.
*/
mov r16=cr.ifa // get the address that caused the fault
MOV_FROM_IFA(r16) // get the address that caused the fault
movl r30=1f // load continuation point in case of nested fault
;;
thash r17=r16 // compute virtual address of L3 PTE
THASH(p0, r17, r16, r18) // compute virtual address of L3 PTE
mov r29=b0 // save b0 in case of nested fault
mov r31=pr // save pr
#ifdef CONFIG_SMP
@ -576,7 +557,7 @@ ENTRY(dirty_bit)
;;
(p6) cmp.eq p6,p7=r26,r18 // Only compare if page is present
;;
(p6) itc.d r25 // install updated PTE
ITC_D(p6, r25, r18) // install updated PTE
;;
/*
* Tell the assemblers dependency-violation checker that the above "itc" instructions
@ -602,7 +583,7 @@ ENTRY(dirty_bit)
itc.d r18 // install updated PTE
#endif
mov pr=r31,-1 // restore pr
rfi
RFI
END(dirty_bit)
.org ia64_ivt+0x2400
@ -611,22 +592,22 @@ END(dirty_bit)
ENTRY(iaccess_bit)
DBG_FAULT(9)
// Like Entry 8, except for instruction access
mov r16=cr.ifa // get the address that caused the fault
MOV_FROM_IFA(r16) // get the address that caused the fault
movl r30=1f // load continuation point in case of nested fault
mov r31=pr // save predicates
#ifdef CONFIG_ITANIUM
/*
* Erratum 10 (IFA may contain incorrect address) has "NoFix" status.
*/
mov r17=cr.ipsr
MOV_FROM_IPSR(p0, r17)
;;
mov r18=cr.iip
MOV_FROM_IIP(r18)
tbit.z p6,p0=r17,IA64_PSR_IS_BIT // IA64 instruction set?
;;
(p6) mov r16=r18 // if so, use cr.iip instead of cr.ifa
#endif /* CONFIG_ITANIUM */
;;
thash r17=r16 // compute virtual address of L3 PTE
THASH(p0, r17, r16, r18) // compute virtual address of L3 PTE
mov r29=b0 // save b0 in case of nested fault)
#ifdef CONFIG_SMP
mov r28=ar.ccv // save ar.ccv
@ -642,7 +623,7 @@ ENTRY(iaccess_bit)
;;
(p6) cmp.eq p6,p7=r26,r18 // Only if page present
;;
(p6) itc.i r25 // install updated PTE
ITC_I(p6, r25, r26) // install updated PTE
;;
/*
* Tell the assemblers dependency-violation checker that the above "itc" instructions
@ -668,7 +649,7 @@ ENTRY(iaccess_bit)
itc.i r18 // install updated PTE
#endif /* !CONFIG_SMP */
mov pr=r31,-1
rfi
RFI
END(iaccess_bit)
.org ia64_ivt+0x2800
@ -677,10 +658,10 @@ END(iaccess_bit)
ENTRY(daccess_bit)
DBG_FAULT(10)
// Like Entry 8, except for data access
mov r16=cr.ifa // get the address that caused the fault
MOV_FROM_IFA(r16) // get the address that caused the fault
movl r30=1f // load continuation point in case of nested fault
;;
thash r17=r16 // compute virtual address of L3 PTE
THASH(p0, r17, r16, r18) // compute virtual address of L3 PTE
mov r31=pr
mov r29=b0 // save b0 in case of nested fault)
#ifdef CONFIG_SMP
@ -697,7 +678,7 @@ ENTRY(daccess_bit)
;;
(p6) cmp.eq p6,p7=r26,r18 // Only if page is present
;;
(p6) itc.d r25 // install updated PTE
ITC_D(p6, r25, r26) // install updated PTE
/*
* Tell the assemblers dependency-violation checker that the above "itc" instructions
* cannot possibly affect the following loads:
@ -721,7 +702,7 @@ ENTRY(daccess_bit)
#endif
mov b0=r29 // restore b0
mov pr=r31,-1
rfi
RFI
END(daccess_bit)
.org ia64_ivt+0x2c00
@ -745,10 +726,10 @@ ENTRY(break_fault)
*/
DBG_FAULT(11)
mov.m r16=IA64_KR(CURRENT) // M2 r16 <- current task (12 cyc)
mov r29=cr.ipsr // M2 (12 cyc)
MOV_FROM_IPSR(p0, r29) // M2 (12 cyc)
mov r31=pr // I0 (2 cyc)
mov r17=cr.iim // M2 (2 cyc)
MOV_FROM_IIM(r17) // M2 (2 cyc)
mov.m r27=ar.rsc // M2 (12 cyc)
mov r18=__IA64_BREAK_SYSCALL // A
@ -767,7 +748,7 @@ ENTRY(break_fault)
nop.m 0
movl r30=sys_call_table // X
mov r28=cr.iip // M2 (2 cyc)
MOV_FROM_IIP(r28) // M2 (2 cyc)
cmp.eq p0,p7=r18,r17 // I0 is this a system call?
(p7) br.cond.spnt non_syscall // B no ->
//
@ -864,18 +845,17 @@ ENTRY(break_fault)
#endif
mov ar.rsc=0x3 // M2 set eager mode, pl 0, LE, loadrs=0
nop 0
bsw.1 // B (6 cyc) regs are saved, switch to bank 1
BSW_1(r2, r14) // B (6 cyc) regs are saved, switch to bank 1
;;
ssm psr.ic | PSR_DEFAULT_BITS // M2 now it's safe to re-enable intr.-collection
SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, r16) // M2 now it's safe to re-enable intr.-collection
// M0 ensure interruption collection is on
movl r3=ia64_ret_from_syscall // X
;;
srlz.i // M0 ensure interruption collection is on
mov rp=r3 // I0 set the real return addr
(p10) br.cond.spnt.many ia64_ret_from_syscall // B return if bad call-frame or r15 is a NaT
(p15) ssm psr.i // M2 restore psr.i
SSM_PSR_I(p15, p15, r16) // M2 restore psr.i
(p14) br.call.sptk.many b6=b6 // B invoke syscall-handker (ignore return addr)
br.cond.spnt.many ia64_trace_syscall // B do syscall-tracing thingamagic
// NOT REACHED
@ -895,27 +875,8 @@ END(break_fault)
/////////////////////////////////////////////////////////////////////////////////////////
// 0x3000 Entry 12 (size 64 bundles) External Interrupt (4)
ENTRY(interrupt)
DBG_FAULT(12)
mov r31=pr // prepare to save predicates
;;
SAVE_MIN_WITH_COVER // uses r31; defines r2 and r3
ssm psr.ic | PSR_DEFAULT_BITS
;;
adds r3=8,r2 // set up second base pointer for SAVE_REST
srlz.i // ensure everybody knows psr.ic is back on
;;
SAVE_REST
;;
MCA_RECOVER_RANGE(interrupt)
alloc r14=ar.pfs,0,0,2,0 // must be first in an insn group
mov out0=cr.ivr // pass cr.ivr as first arg
add out1=16,sp // pass pointer to pt_regs as second arg
;;
srlz.d // make sure we see the effect of cr.ivr
movl r14=ia64_leave_kernel
;;
mov rp=r14
br.call.sptk.many b6=ia64_handle_irq
/* interrupt handler has become too big to fit this area. */
br.sptk.many __interrupt
END(interrupt)
.org ia64_ivt+0x3400
@ -978,6 +939,7 @@ END(interrupt)
* - ar.fpsr: set to kernel settings
* - b6: preserved (same as on entry)
*/
#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE
GLOBAL_ENTRY(ia64_syscall_setup)
#if PT(B6) != 0
# error This code assumes that b6 is the first field in pt_regs.
@ -1069,6 +1031,7 @@ GLOBAL_ENTRY(ia64_syscall_setup)
(p10) mov r8=-EINVAL
br.ret.sptk.many b7
END(ia64_syscall_setup)
#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
.org ia64_ivt+0x3c00
/////////////////////////////////////////////////////////////////////////////////////////
@ -1082,7 +1045,7 @@ END(ia64_syscall_setup)
DBG_FAULT(16)
FAULT(16)
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
#if defined(CONFIG_VIRT_CPU_ACCOUNTING) && defined(__IA64_ASM_PARAVIRTUALIZED_NATIVE)
/*
* There is no particular reason for this code to be here, other than
* that there happens to be space here that would go unused otherwise.
@ -1092,7 +1055,7 @@ END(ia64_syscall_setup)
* account_sys_enter is called from SAVE_MIN* macros if accounting is
* enabled and if the macro is entered from user mode.
*/
ENTRY(account_sys_enter)
GLOBAL_ENTRY(account_sys_enter)
// mov.m r20=ar.itc is called in advance, and r13 is current
add r16=TI_AC_STAMP+IA64_TASK_SIZE,r13
add r17=TI_AC_LEAVE+IA64_TASK_SIZE,r13
@ -1123,110 +1086,18 @@ END(account_sys_enter)
DBG_FAULT(17)
FAULT(17)
ENTRY(non_syscall)
mov ar.rsc=r27 // restore ar.rsc before SAVE_MIN_WITH_COVER
;;
SAVE_MIN_WITH_COVER
// There is no particular reason for this code to be here, other than that
// there happens to be space here that would go unused otherwise. If this
// fault ever gets "unreserved", simply moved the following code to a more
// suitable spot...
alloc r14=ar.pfs,0,0,2,0
mov out0=cr.iim
add out1=16,sp
adds r3=8,r2 // set up second base pointer for SAVE_REST
ssm psr.ic | PSR_DEFAULT_BITS
;;
srlz.i // guarantee that interruption collection is on
;;
(p15) ssm psr.i // restore psr.i
movl r15=ia64_leave_kernel
;;
SAVE_REST
mov rp=r15
;;
br.call.sptk.many b6=ia64_bad_break // avoid WAW on CFM and ignore return addr
END(non_syscall)
.org ia64_ivt+0x4800
/////////////////////////////////////////////////////////////////////////////////////////
// 0x4800 Entry 18 (size 64 bundles) Reserved
DBG_FAULT(18)
FAULT(18)
/*
* There is no particular reason for this code to be here, other than that
* there happens to be space here that would go unused otherwise. If this
* fault ever gets "unreserved", simply moved the following code to a more
* suitable spot...
*/
ENTRY(dispatch_unaligned_handler)
SAVE_MIN_WITH_COVER
;;
alloc r14=ar.pfs,0,0,2,0 // now it's safe (must be first in insn group!)
mov out0=cr.ifa
adds out1=16,sp
ssm psr.ic | PSR_DEFAULT_BITS
;;
srlz.i // guarantee that interruption collection is on
;;
(p15) ssm psr.i // restore psr.i
adds r3=8,r2 // set up second base pointer
;;
SAVE_REST
movl r14=ia64_leave_kernel
;;
mov rp=r14
br.sptk.many ia64_prepare_handle_unaligned
END(dispatch_unaligned_handler)
.org ia64_ivt+0x4c00
/////////////////////////////////////////////////////////////////////////////////////////
// 0x4c00 Entry 19 (size 64 bundles) Reserved
DBG_FAULT(19)
FAULT(19)
/*
* There is no particular reason for this code to be here, other than that
* there happens to be space here that would go unused otherwise. If this
* fault ever gets "unreserved", simply moved the following code to a more
* suitable spot...
*/
ENTRY(dispatch_to_fault_handler)
/*
* Input:
* psr.ic: off
* r19: fault vector number (e.g., 24 for General Exception)
* r31: contains saved predicates (pr)
*/
SAVE_MIN_WITH_COVER_R19
alloc r14=ar.pfs,0,0,5,0
mov out0=r15
mov out1=cr.isr
mov out2=cr.ifa
mov out3=cr.iim
mov out4=cr.itir
;;
ssm psr.ic | PSR_DEFAULT_BITS
;;
srlz.i // guarantee that interruption collection is on
;;
(p15) ssm psr.i // restore psr.i
adds r3=8,r2 // set up second base pointer for SAVE_REST
;;
SAVE_REST
movl r14=ia64_leave_kernel
;;
mov rp=r14
br.call.sptk.many b6=ia64_fault
END(dispatch_to_fault_handler)
//
// --- End of long entries, Beginning of short entries
//
@ -1236,8 +1107,8 @@ END(dispatch_to_fault_handler)
// 0x5000 Entry 20 (size 16 bundles) Page Not Present (10,22,49)
ENTRY(page_not_present)
DBG_FAULT(20)
mov r16=cr.ifa
rsm psr.dt
MOV_FROM_IFA(r16)
RSM_PSR_DT
/*
* The Linux page fault handler doesn't expect non-present pages to be in
* the TLB. Flush the existing entry now, so we meet that expectation.
@ -1256,8 +1127,8 @@ END(page_not_present)
// 0x5100 Entry 21 (size 16 bundles) Key Permission (13,25,52)
ENTRY(key_permission)
DBG_FAULT(21)
mov r16=cr.ifa
rsm psr.dt
MOV_FROM_IFA(r16)
RSM_PSR_DT
mov r31=pr
;;
srlz.d
@ -1269,8 +1140,8 @@ END(key_permission)
// 0x5200 Entry 22 (size 16 bundles) Instruction Access Rights (26)
ENTRY(iaccess_rights)
DBG_FAULT(22)
mov r16=cr.ifa
rsm psr.dt
MOV_FROM_IFA(r16)
RSM_PSR_DT
mov r31=pr
;;
srlz.d
@ -1282,8 +1153,8 @@ END(iaccess_rights)
// 0x5300 Entry 23 (size 16 bundles) Data Access Rights (14,53)
ENTRY(daccess_rights)
DBG_FAULT(23)
mov r16=cr.ifa
rsm psr.dt
MOV_FROM_IFA(r16)
RSM_PSR_DT
mov r31=pr
;;
srlz.d
@ -1295,7 +1166,7 @@ END(daccess_rights)
// 0x5400 Entry 24 (size 16 bundles) General Exception (5,32,34,36,38,39)
ENTRY(general_exception)
DBG_FAULT(24)
mov r16=cr.isr
MOV_FROM_ISR(r16)
mov r31=pr
;;
cmp4.eq p6,p0=0,r16
@ -1324,8 +1195,8 @@ END(disabled_fp_reg)
ENTRY(nat_consumption)
DBG_FAULT(26)
mov r16=cr.ipsr
mov r17=cr.isr
MOV_FROM_IPSR(p0, r16)
MOV_FROM_ISR(r17)
mov r31=pr // save PR
;;
and r18=0xf,r17 // r18 = cr.ipsr.code{3:0}
@ -1335,10 +1206,10 @@ ENTRY(nat_consumption)
dep r16=-1,r16,IA64_PSR_ED_BIT,1
(p6) br.cond.spnt 1f // branch if (cr.ispr.na == 0 || cr.ipsr.code{3:0} != LFETCH)
;;
mov cr.ipsr=r16 // set cr.ipsr.na
MOV_TO_IPSR(p0, r16, r18)
mov pr=r31,-1
;;
rfi
RFI
1: mov pr=r31,-1
;;
@ -1360,26 +1231,26 @@ ENTRY(speculation_vector)
*
* cr.imm contains zero_ext(imm21)
*/
mov r18=cr.iim
MOV_FROM_IIM(r18)
;;
mov r17=cr.iip
MOV_FROM_IIP(r17)
shl r18=r18,43 // put sign bit in position (43=64-21)
;;
mov r16=cr.ipsr
MOV_FROM_IPSR(p0, r16)
shr r18=r18,39 // sign extend (39=43-4)
;;
add r17=r17,r18 // now add the offset
;;
mov cr.iip=r17
MOV_FROM_IIP(r17)
dep r16=0,r16,41,2 // clear EI
;;
mov cr.ipsr=r16
MOV_FROM_IPSR(p0, r16)
;;
rfi // and go back
RFI
END(speculation_vector)
.org ia64_ivt+0x5800
@ -1517,11 +1388,11 @@ ENTRY(ia32_intercept)
DBG_FAULT(46)
#ifdef CONFIG_IA32_SUPPORT
mov r31=pr
mov r16=cr.isr
MOV_FROM_ISR(r16)
;;
extr.u r17=r16,16,8 // get ISR.code
mov r18=ar.eflag
mov r19=cr.iim // old eflag value
MOV_FROM_IIM(r19) // old eflag value
;;
cmp.ne p6,p0=2,r17
(p6) br.cond.spnt 1f // not a system flag fault
@ -1533,7 +1404,7 @@ ENTRY(ia32_intercept)
(p6) br.cond.spnt 1f // eflags.ac bit didn't change
;;
mov pr=r31,-1 // restore predicate registers
rfi
RFI
1:
#endif // CONFIG_IA32_SUPPORT
@ -1673,6 +1544,137 @@ END(ia32_interrupt)
DBG_FAULT(67)
FAULT(67)
//-----------------------------------------------------------------------------------
// call do_page_fault (predicates are in r31, psr.dt may be off, r16 is faulting address)
ENTRY(page_fault)
SSM_PSR_DT_AND_SRLZ_I
;;
SAVE_MIN_WITH_COVER
alloc r15=ar.pfs,0,0,3,0
MOV_FROM_IFA(out0)
MOV_FROM_ISR(out1)
SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r14, r3)
adds r3=8,r2 // set up second base pointer
SSM_PSR_I(p15, p15, r14) // restore psr.i
movl r14=ia64_leave_kernel
;;
SAVE_REST
mov rp=r14
;;
adds out2=16,r12 // out2 = pointer to pt_regs
br.call.sptk.many b6=ia64_do_page_fault // ignore return address
END(page_fault)
ENTRY(non_syscall)
mov ar.rsc=r27 // restore ar.rsc before SAVE_MIN_WITH_COVER
;;
SAVE_MIN_WITH_COVER
// There is no particular reason for this code to be here, other than that
// there happens to be space here that would go unused otherwise. If this
// fault ever gets "unreserved", simply moved the following code to a more
// suitable spot...
alloc r14=ar.pfs,0,0,2,0
MOV_FROM_IIM(out0)
add out1=16,sp
adds r3=8,r2 // set up second base pointer for SAVE_REST
SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r15, r24)
// guarantee that interruption collection is on
SSM_PSR_I(p15, p15, r15) // restore psr.i
movl r15=ia64_leave_kernel
;;
SAVE_REST
mov rp=r15
;;
br.call.sptk.many b6=ia64_bad_break // avoid WAW on CFM and ignore return addr
END(non_syscall)
ENTRY(__interrupt)
DBG_FAULT(12)
mov r31=pr // prepare to save predicates
;;
SAVE_MIN_WITH_COVER // uses r31; defines r2 and r3
SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, r14)
// ensure everybody knows psr.ic is back on
adds r3=8,r2 // set up second base pointer for SAVE_REST
;;
SAVE_REST
;;
MCA_RECOVER_RANGE(interrupt)
alloc r14=ar.pfs,0,0,2,0 // must be first in an insn group
MOV_FROM_IVR(out0, r8) // pass cr.ivr as first arg
add out1=16,sp // pass pointer to pt_regs as second arg
;;
srlz.d // make sure we see the effect of cr.ivr
movl r14=ia64_leave_kernel
;;
mov rp=r14
br.call.sptk.many b6=ia64_handle_irq
END(__interrupt)
/*
* There is no particular reason for this code to be here, other than that
* there happens to be space here that would go unused otherwise. If this
* fault ever gets "unreserved", simply moved the following code to a more
* suitable spot...
*/
ENTRY(dispatch_unaligned_handler)
SAVE_MIN_WITH_COVER
;;
alloc r14=ar.pfs,0,0,2,0 // now it's safe (must be first in insn group!)
MOV_FROM_IFA(out0)
adds out1=16,sp
SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, r24)
// guarantee that interruption collection is on
SSM_PSR_I(p15, p15, r3) // restore psr.i
adds r3=8,r2 // set up second base pointer
;;
SAVE_REST
movl r14=ia64_leave_kernel
;;
mov rp=r14
br.sptk.many ia64_prepare_handle_unaligned
END(dispatch_unaligned_handler)
/*
* There is no particular reason for this code to be here, other than that
* there happens to be space here that would go unused otherwise. If this
* fault ever gets "unreserved", simply moved the following code to a more
* suitable spot...
*/
ENTRY(dispatch_to_fault_handler)
/*
* Input:
* psr.ic: off
* r19: fault vector number (e.g., 24 for General Exception)
* r31: contains saved predicates (pr)
*/
SAVE_MIN_WITH_COVER_R19
alloc r14=ar.pfs,0,0,5,0
MOV_FROM_ISR(out1)
MOV_FROM_IFA(out2)
MOV_FROM_IIM(out3)
MOV_FROM_ITIR(out4)
;;
SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, out0)
// guarantee that interruption collection is on
mov out0=r15
;;
SSM_PSR_I(p15, p15, r3) // restore psr.i
adds r3=8,r2 // set up second base pointer for SAVE_REST
;;
SAVE_REST
movl r14=ia64_leave_kernel
;;
mov rp=r14
br.call.sptk.many b6=ia64_fault
END(dispatch_to_fault_handler)
/*
* Squatting in this space ...
*
@ -1686,11 +1688,10 @@ ENTRY(dispatch_illegal_op_fault)
.prologue
.body
SAVE_MIN_WITH_COVER
ssm psr.ic | PSR_DEFAULT_BITS
SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, r24)
// guarantee that interruption collection is on
;;
srlz.i // guarantee that interruption collection is on
;;
(p15) ssm psr.i // restore psr.i
SSM_PSR_I(p15, p15, r3) // restore psr.i
adds r3=8,r2 // set up second base pointer for SAVE_REST
;;
alloc r14=ar.pfs,0,0,1,0 // must be first in insn group
@ -1729,12 +1730,11 @@ END(dispatch_illegal_op_fault)
ENTRY(dispatch_to_ia32_handler)
SAVE_MIN
;;
mov r14=cr.isr
ssm psr.ic | PSR_DEFAULT_BITS
MOV_FROM_ISR(r14)
SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, r24)
// guarantee that interruption collection is on
;;
srlz.i // guarantee that interruption collection is on
;;
(p15) ssm psr.i
SSM_PSR_I(p15, p15, r3)
adds r3=8,r2 // Base pointer for SAVE_REST
;;
SAVE_REST

13
arch/ia64/kernel/minstate.h
View File

@ -2,6 +2,7 @@
#include <asm/cache.h>
#include "entry.h"
#include "paravirt_inst.h"
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
/* read ar.itc in advance, and use it before leaving bank 0 */
@ -43,16 +44,16 @@
* Note that psr.ic is NOT turned on by this macro. This is so that
* we can pass interruption state as arguments to a handler.
*/
#define DO_SAVE_MIN(COVER,SAVE_IFS,EXTRA,WORKAROUND) \
#define IA64_NATIVE_DO_SAVE_MIN(__COVER,SAVE_IFS,EXTRA,WORKAROUND) \
mov r16=IA64_KR(CURRENT); /* M */ \
mov r27=ar.rsc; /* M */ \
mov r20=r1; /* A */ \
mov r25=ar.unat; /* M */ \
mov r29=cr.ipsr; /* M */ \
MOV_FROM_IPSR(p0,r29); /* M */ \
mov r26=ar.pfs; /* I */ \
mov r28=cr.iip; /* M */ \
MOV_FROM_IIP(r28); /* M */ \
mov r21=ar.fpsr; /* M */ \
COVER; /* B;; (or nothing) */ \
__COVER; /* B;; (or nothing) */ \
;; \
adds r16=IA64_TASK_THREAD_ON_USTACK_OFFSET,r16; \
;; \
@ -244,6 +245,6 @@
1: \
.pred.rel "mutex", pKStk, pUStk
#define SAVE_MIN_WITH_COVER DO_SAVE_MIN(cover, mov r30=cr.ifs, , RSE_WORKAROUND)
#define SAVE_MIN_WITH_COVER_R19 DO_SAVE_MIN(cover, mov r30=cr.ifs, mov r15=r19, RSE_WORKAROUND)
#define SAVE_MIN_WITH_COVER DO_SAVE_MIN(COVER, mov r30=cr.ifs, , RSE_WORKAROUND)
#define SAVE_MIN_WITH_COVER_R19 DO_SAVE_MIN(COVER, mov r30=cr.ifs, mov r15=r19, RSE_WORKAROUND)
#define SAVE_MIN DO_SAVE_MIN( , mov r30=r0, , )

3
arch/ia64/kernel/module.c
View File

@ -321,7 +321,8 @@ module_alloc (unsigned long size)
void
module_free (struct module *mod, void *module_region)
{
if (mod->arch.init_unw_table && module_region == mod->module_init) {
if (mod && mod->arch.init_unw_table &&
module_region == mod->module_init) {
unw_remove_unwind_table(mod->arch.init_unw_table);
mod->arch.init_unw_table = NULL;
}

24
arch/ia64/kernel/nr-irqs.c Normal file
View File

@ -0,0 +1,24 @@
/*
* calculate
* NR_IRQS = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, FOO_NR_IRQS...)
* depending on config.
* This must be calculated before processing asm-offset.c.
*/
#define ASM_OFFSETS_C 1
#include <linux/kbuild.h>
#include <linux/threads.h>
#include <asm-ia64/native/irq.h>
void foo(void)
{
union paravirt_nr_irqs_max {
char ia64_native_nr_irqs[IA64_NATIVE_NR_IRQS];
#ifdef CONFIG_XEN
char xen_nr_irqs[XEN_NR_IRQS];
#endif
};
DEFINE(NR_IRQS, sizeof (union paravirt_nr_irqs_max));
}

369
arch/ia64/kernel/paravirt.c Normal file
View File

@ -0,0 +1,369 @@
/******************************************************************************
* arch/ia64/kernel/paravirt.c
*
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
* Yaozu (Eddie) Dong <eddie.dong@intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/init.h>
#include <linux/compiler.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/types.h>
#include <asm/iosapic.h>
#include <asm/paravirt.h>
/***************************************************************************
* general info
*/
struct pv_info pv_info = {
.kernel_rpl = 0,
.paravirt_enabled = 0,
.name = "bare hardware"
};
/***************************************************************************
* pv_init_ops
* initialization hooks.
*/
struct pv_init_ops pv_init_ops;
/***************************************************************************
* pv_cpu_ops
* intrinsics hooks.
*/
/* ia64_native_xxx are macros so that we have to make them real functions */
#define DEFINE_VOID_FUNC1(name) \
static void \
ia64_native_ ## name ## _func(unsigned long arg) \
{ \
ia64_native_ ## name(arg); \
} \
#define DEFINE_VOID_FUNC2(name) \
static void \
ia64_native_ ## name ## _func(unsigned long arg0, \
unsigned long arg1) \
{ \
ia64_native_ ## name(arg0, arg1); \
} \
#define DEFINE_FUNC0(name) \
static unsigned long \
ia64_native_ ## name ## _func(void) \
{ \
return ia64_native_ ## name(); \
}
#define DEFINE_FUNC1(name, type) \
static unsigned long \
ia64_native_ ## name ## _func(type arg) \
{ \
return ia64_native_ ## name(arg); \
} \
DEFINE_VOID_FUNC1(fc);
DEFINE_VOID_FUNC1(intrin_local_irq_restore);
DEFINE_VOID_FUNC2(ptcga);
DEFINE_VOID_FUNC2(set_rr);
DEFINE_FUNC0(get_psr_i);
DEFINE_FUNC1(thash, unsigned long);
DEFINE_FUNC1(get_cpuid, int);
DEFINE_FUNC1(get_pmd, int);
DEFINE_FUNC1(get_rr, unsigned long);
static void
ia64_native_ssm_i_func(void)
{
ia64_native_ssm(IA64_PSR_I);
}
static void
ia64_native_rsm_i_func(void)
{
ia64_native_rsm(IA64_PSR_I);
}
static void
ia64_native_set_rr0_to_rr4_func(unsigned long val0, unsigned long val1,
unsigned long val2, unsigned long val3,
unsigned long val4)
{
ia64_native_set_rr0_to_rr4(val0, val1, val2, val3, val4);
}
#define CASE_GET_REG(id) \
case _IA64_REG_ ## id: \
res = ia64_native_getreg(_IA64_REG_ ## id); \
break;
#define CASE_GET_AR(id) CASE_GET_REG(AR_ ## id)
#define CASE_GET_CR(id) CASE_GET_REG(CR_ ## id)
unsigned long
ia64_native_getreg_func(int regnum)
{
unsigned long res = -1;
switch (regnum) {
CASE_GET_REG(GP);
CASE_GET_REG(IP);
CASE_GET_REG(PSR);
CASE_GET_REG(TP);
CASE_GET_REG(SP);
CASE_GET_AR(KR0);
CASE_GET_AR(KR1);
CASE_GET_AR(KR2);
CASE_GET_AR(KR3);
CASE_GET_AR(KR4);
CASE_GET_AR(KR5);
CASE_GET_AR(KR6);
CASE_GET_AR(KR7);
CASE_GET_AR(RSC);
CASE_GET_AR(BSP);
CASE_GET_AR(BSPSTORE);
CASE_GET_AR(RNAT);
CASE_GET_AR(FCR);
CASE_GET_AR(EFLAG);
CASE_GET_AR(CSD);
CASE_GET_AR(SSD);
CASE_GET_AR(CFLAG);
CASE_GET_AR(FSR);
CASE_GET_AR(FIR);
CASE_GET_AR(FDR);
CASE_GET_AR(CCV);
CASE_GET_AR(UNAT);
CASE_GET_AR(FPSR);
CASE_GET_AR(ITC);
CASE_GET_AR(PFS);
CASE_GET_AR(LC);
CASE_GET_AR(EC);
CASE_GET_CR(DCR);
CASE_GET_CR(ITM);
CASE_GET_CR(IVA);
CASE_GET_CR(PTA);
CASE_GET_CR(IPSR);
CASE_GET_CR(ISR);
CASE_GET_CR(IIP);
CASE_GET_CR(IFA);
CASE_GET_CR(ITIR);
CASE_GET_CR(IIPA);
CASE_GET_CR(IFS);
CASE_GET_CR(IIM);
CASE_GET_CR(IHA);
CASE_GET_CR(LID);
CASE_GET_CR(IVR);
CASE_GET_CR(TPR);
CASE_GET_CR(EOI);
CASE_GET_CR(IRR0);
CASE_GET_CR(IRR1);
CASE_GET_CR(IRR2);
CASE_GET_CR(IRR3);
CASE_GET_CR(ITV);
CASE_GET_CR(PMV);
CASE_GET_CR(CMCV);
CASE_GET_CR(LRR0);
CASE_GET_CR(LRR1);
default:
printk(KERN_CRIT "wrong_getreg %d\n", regnum);
break;
}
return res;
}
#define CASE_SET_REG(id) \
case _IA64_REG_ ## id: \
ia64_native_setreg(_IA64_REG_ ## id, val); \
break;
#define CASE_SET_AR(id) CASE_SET_REG(AR_ ## id)
#define CASE_SET_CR(id) CASE_SET_REG(CR_ ## id)
void
ia64_native_setreg_func(int regnum, unsigned long val)
{
switch (regnum) {
case _IA64_REG_PSR_L:
ia64_native_setreg(_IA64_REG_PSR_L, val);
ia64_dv_serialize_data();
break;
CASE_SET_REG(SP);
CASE_SET_REG(GP);
CASE_SET_AR(KR0);
CASE_SET_AR(KR1);
CASE_SET_AR(KR2);
CASE_SET_AR(KR3);
CASE_SET_AR(KR4);
CASE_SET_AR(KR5);
CASE_SET_AR(KR6);
CASE_SET_AR(KR7);
CASE_SET_AR(RSC);
CASE_SET_AR(BSP);
CASE_SET_AR(BSPSTORE);
CASE_SET_AR(RNAT);
CASE_SET_AR(FCR);
CASE_SET_AR(EFLAG);
CASE_SET_AR(CSD);
CASE_SET_AR(SSD);
CASE_SET_AR(CFLAG);
CASE_SET_AR(FSR);
CASE_SET_AR(FIR);
CASE_SET_AR(FDR);
CASE_SET_AR(CCV);
CASE_SET_AR(UNAT);
CASE_SET_AR(FPSR);
CASE_SET_AR(ITC);
CASE_SET_AR(PFS);
CASE_SET_AR(LC);
CASE_SET_AR(EC);
CASE_SET_CR(DCR);
CASE_SET_CR(ITM);
CASE_SET_CR(IVA);
CASE_SET_CR(PTA);
CASE_SET_CR(IPSR);
CASE_SET_CR(ISR);
CASE_SET_CR(IIP);
CASE_SET_CR(IFA);
CASE_SET_CR(ITIR);
CASE_SET_CR(IIPA);
CASE_SET_CR(IFS);
CASE_SET_CR(IIM);
CASE_SET_CR(IHA);
CASE_SET_CR(LID);
CASE_SET_CR(IVR);
CASE_SET_CR(TPR);
CASE_SET_CR(EOI);
CASE_SET_CR(IRR0);
CASE_SET_CR(IRR1);
CASE_SET_CR(IRR2);
CASE_SET_CR(IRR3);
CASE_SET_CR(ITV);
CASE_SET_CR(PMV);
CASE_SET_CR(CMCV);
CASE_SET_CR(LRR0);
CASE_SET_CR(LRR1);
default:
printk(KERN_CRIT "wrong setreg %d\n", regnum);
break;
}
}
struct pv_cpu_ops pv_cpu_ops = {
.fc = ia64_native_fc_func,
.thash = ia64_native_thash_func,
.get_cpuid = ia64_native_get_cpuid_func,
.get_pmd = ia64_native_get_pmd_func,
.ptcga = ia64_native_ptcga_func,
.get_rr = ia64_native_get_rr_func,
.set_rr = ia64_native_set_rr_func,
.set_rr0_to_rr4 = ia64_native_set_rr0_to_rr4_func,
.ssm_i = ia64_native_ssm_i_func,
.getreg = ia64_native_getreg_func,
.setreg = ia64_native_setreg_func,
.rsm_i = ia64_native_rsm_i_func,
.get_psr_i = ia64_native_get_psr_i_func,
.intrin_local_irq_restore
= ia64_native_intrin_local_irq_restore_func,
};
EXPORT_SYMBOL(pv_cpu_ops);
/******************************************************************************
* replacement of hand written assembly codes.
*/
void
paravirt_cpu_asm_init(const struct pv_cpu_asm_switch *cpu_asm_switch)
{
extern unsigned long paravirt_switch_to_targ;
extern unsigned long paravirt_leave_syscall_targ;
extern unsigned long paravirt_work_processed_syscall_targ;
extern unsigned long paravirt_leave_kernel_targ;
paravirt_switch_to_targ = cpu_asm_switch->switch_to;
paravirt_leave_syscall_targ = cpu_asm_switch->leave_syscall;
paravirt_work_processed_syscall_targ =
cpu_asm_switch->work_processed_syscall;
paravirt_leave_kernel_targ = cpu_asm_switch->leave_kernel;
}
/***************************************************************************
* pv_iosapic_ops
* iosapic read/write hooks.
*/
static unsigned int
ia64_native_iosapic_read(char __iomem *iosapic, unsigned int reg)
{
return __ia64_native_iosapic_read(iosapic, reg);
}
static void
ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
{
__ia64_native_iosapic_write(iosapic, reg, val);
}
struct pv_iosapic_ops pv_iosapic_ops = {
.pcat_compat_init = ia64_native_iosapic_pcat_compat_init,
.get_irq_chip = ia64_native_iosapic_get_irq_chip,
.__read = ia64_native_iosapic_read,
.__write = ia64_native_iosapic_write,
};
/***************************************************************************
* pv_irq_ops
* irq operations
*/
struct pv_irq_ops pv_irq_ops = {
.register_ipi = ia64_native_register_ipi,
.assign_irq_vector = ia64_native_assign_irq_vector,
.free_irq_vector = ia64_native_free_irq_vector,
.register_percpu_irq = ia64_native_register_percpu_irq,
.resend_irq = ia64_native_resend_irq,
};
/***************************************************************************
* pv_time_ops
* time operations
*/
static int
ia64_native_do_steal_accounting(unsigned long *new_itm)
{
return 0;
}
struct pv_time_ops pv_time_ops = {
.do_steal_accounting = ia64_native_do_steal_accounting,
};

29
arch/ia64/kernel/paravirt_inst.h Normal file
View File

@ -0,0 +1,29 @@
/******************************************************************************
* linux/arch/ia64/xen/paravirt_inst.h
*
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifdef __IA64_ASM_PARAVIRTUALIZED_XEN
#include <asm/xen/inst.h>
#include <asm/xen/minstate.h>
#else
#include <asm/native/inst.h>
#endif

60
arch/ia64/kernel/paravirtentry.S Normal file
View File

@ -0,0 +1,60 @@
/******************************************************************************
* linux/arch/ia64/xen/paravirtentry.S
*
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <asm/asmmacro.h>
#include <asm/asm-offsets.h>
#include "entry.h"
#define DATA8(sym, init_value) \
.pushsection .data.read_mostly ; \
.align 8 ; \
.global sym ; \
sym: ; \
data8 init_value ; \
.popsection
#define BRANCH(targ, reg, breg) \
movl reg=targ ; \
;; \
ld8 reg=[reg] ; \
;; \
mov breg=reg ; \
br.cond.sptk.many breg
#define BRANCH_PROC(sym, reg, breg) \
DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
GLOBAL_ENTRY(paravirt_ ## sym) ; \
BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \
END(paravirt_ ## sym)
#define BRANCH_PROC_UNWINFO(sym, reg, breg) \
DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
GLOBAL_ENTRY(paravirt_ ## sym) ; \
PT_REGS_UNWIND_INFO(0) ; \
BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \
END(paravirt_ ## sym)
BRANCH_PROC(switch_to, r22, b7)
BRANCH_PROC_UNWINFO(leave_syscall, r22, b7)
BRANCH_PROC(work_processed_syscall, r2, b7)
BRANCH_PROC_UNWINFO(leave_kernel, r22, b7)

10
arch/ia64/kernel/setup.c
View File

@ -51,6 +51,7 @@
#include <asm/mca.h>
#include <asm/meminit.h>
#include <asm/page.h>
#include <asm/paravirt.h>
#include <asm/patch.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
@ -341,6 +342,8 @@ reserve_memory (void)
rsvd_region[n].end = (unsigned long) ia64_imva(_end);
n++;
n += paravirt_reserve_memory(&rsvd_region[n]);
#ifdef CONFIG_BLK_DEV_INITRD
if (ia64_boot_param->initrd_start) {
rsvd_region[n].start = (unsigned long)__va(ia64_boot_param->initrd_start);
@ -519,6 +522,8 @@ setup_arch (char **cmdline_p)
{
unw_init();
paravirt_arch_setup_early();
ia64_patch_vtop((u64) __start___vtop_patchlist, (u64) __end___vtop_patchlist);
*cmdline_p = __va(ia64_boot_param->command_line);
@ -583,6 +588,9 @@ setup_arch (char **cmdline_p)
acpi_boot_init();
#endif
paravirt_banner();
paravirt_arch_setup_console(cmdline_p);
#ifdef CONFIG_VT
if (!conswitchp) {
# if defined(CONFIG_DUMMY_CONSOLE)
@ -602,6 +610,8 @@ setup_arch (char **cmdline_p)
#endif
/* enable IA-64 Machine Check Abort Handling unless disabled */
if (paravirt_arch_setup_nomca())
nomca = 1;
if (!nomca)
ia64_mca_init();

2
arch/ia64/kernel/smpboot.c
View File

@ -50,6 +50,7 @@
#include <asm/machvec.h>
#include <asm/mca.h>
#include <asm/page.h>
#include <asm/paravirt.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
@ -642,6 +643,7 @@ void __devinit smp_prepare_boot_cpu(void)
cpu_set(smp_processor_id(), cpu_online_map);
cpu_set(smp_processor_id(), cpu_callin_map);
per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
paravirt_post_smp_prepare_boot_cpu();
}
#ifdef CONFIG_HOTPLUG_CPU

23
arch/ia64/kernel/time.c
View File

@ -24,6 +24,7 @@
#include <asm/machvec.h>
#include <asm/delay.h>
#include <asm/hw_irq.h>
#include <asm/paravirt.h>
#include <asm/ptrace.h>
#include <asm/sal.h>
#include <asm/sections.h>
@ -48,6 +49,15 @@ EXPORT_SYMBOL(last_cli_ip);
#endif
#ifdef CONFIG_PARAVIRT
static void
paravirt_clocksource_resume(void)
{
if (pv_time_ops.clocksource_resume)
pv_time_ops.clocksource_resume();
}
#endif
static struct clocksource clocksource_itc = {
.name = "itc",
.rating = 350,
@ -56,6 +66,9 @@ static struct clocksource clocksource_itc = {
.mult = 0, /*to be calculated*/
.shift = 16,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
#ifdef CONFIG_PARAVIRT
.resume = paravirt_clocksource_resume,
#endif
};
static struct clocksource *itc_clocksource;
@ -157,6 +170,9 @@ timer_interrupt (int irq, void *dev_id)
profile_tick(CPU_PROFILING);
if (paravirt_do_steal_accounting(&new_itm))
goto skip_process_time_accounting;
while (1) {
update_process_times(user_mode(get_irq_regs()));
@ -186,6 +202,8 @@ timer_interrupt (int irq, void *dev_id)
local_irq_disable();
}
skip_process_time_accounting:
do {
/*
* If we're too close to the next clock tick for
@ -335,6 +353,11 @@ ia64_init_itm (void)
*/
clocksource_itc.rating = 50;
paravirt_init_missing_ticks_accounting(smp_processor_id());
/* avoid softlock up message when cpu is unplug and plugged again. */
touch_softlockup_watchdog();
/* Setup the CPU local timer tick */
ia64_cpu_local_tick();

1
arch/ia64/kernel/vmlinux.lds.S
View File

@ -4,7 +4,6 @@
#include <asm/system.h>
#include <asm/pgtable.h>
#define LOAD_OFFSET (KERNEL_START - KERNEL_TR_PAGE_SIZE)
#include <asm-generic/vmlinux.lds.h>
#define IVT_TEXT \

3
arch/ia64/kvm/Makefile
View File

@ -43,7 +43,8 @@ $(obj)/$(offsets-file): arch/ia64/kvm/asm-offsets.s
EXTRA_CFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/
EXTRA_AFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/
common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o)
common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o \
coalesced_mmio.o)
kvm-objs := $(common-objs) kvm-ia64.o kvm_fw.o
obj-$(CONFIG_KVM) += kvm.o

24
arch/ia64/kvm/kvm-ia64.c
View File

@ -187,6 +187,9 @@ int kvm_dev_ioctl_check_extension(long ext)
r = 1;
break;
case KVM_CAP_COALESCED_MMIO:
r = KVM_COALESCED_MMIO_PAGE_OFFSET;
break;
default:
r = 0;
}
@ -195,11 +198,11 @@ int kvm_dev_ioctl_check_extension(long ext)
}
static struct kvm_io_device *vcpu_find_mmio_dev(struct kvm_vcpu *vcpu,
gpa_t addr)
gpa_t addr, int len, int is_write)
{
struct kvm_io_device *dev;
dev = kvm_io_bus_find_dev(&vcpu->kvm->mmio_bus, addr);
dev = kvm_io_bus_find_dev(&vcpu->kvm->mmio_bus, addr, len, is_write);
return dev;
}
@ -231,7 +234,7 @@ static int handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
kvm_run->exit_reason = KVM_EXIT_MMIO;
return 0;
mmio:
mmio_dev = vcpu_find_mmio_dev(vcpu, p->addr);
mmio_dev = vcpu_find_mmio_dev(vcpu, p->addr, p->size, !p->dir);
if (mmio_dev) {
if (!p->dir)
kvm_iodevice_write(mmio_dev, p->addr, p->size,
@ -395,7 +398,7 @@ static int handle_global_purge(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
if (kvm->vcpus[i]->cpu != -1) {
call_data.vcpu = kvm->vcpus[i];
smp_call_function_single(kvm->vcpus[i]->cpu,
vcpu_global_purge, &call_data, 0, 1);
vcpu_global_purge, &call_data, 1);
} else
printk(KERN_WARNING"kvm: Uninit vcpu received ipi!\n");
@ -1035,14 +1038,6 @@ static void kvm_free_vmm_area(void)
}
}
/*
* Make sure that a cpu that is being hot-unplugged does not have any vcpus
* cached on it. Leave it as blank for IA64.
*/
void decache_vcpus_on_cpu(int cpu)
{
}
static void vti_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
}
@ -1460,6 +1455,9 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
return 0;
}
void kvm_arch_flush_shadow(struct kvm *kvm)
{
}
long kvm_arch_dev_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg)
@ -1693,7 +1691,7 @@ void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
wake_up_interruptible(&vcpu->wq);
if (vcpu->guest_mode)
smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0, 0);
smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0);
}
int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig)

2
arch/ia64/kvm/kvm_fw.c
View File

@ -130,7 +130,7 @@ static struct ia64_pal_retval pal_cache_flush(struct kvm_vcpu *vcpu)
args.cache_type = gr29;
args.operation = gr30;
smp_call_function(remote_pal_cache_flush,
(void *)&args, 1, 1);
(void *)&args, 1);
if (args.status != 0)
printk(KERN_ERR"pal_cache_flush error!,"
"status:0x%lx\n", args.status);

36
arch/m68k/Kconfig
View File

@ -490,28 +490,6 @@ config ATARI_MFPSER
Note for Falcon users: You also have an MFP port, it's just not
wired to the outside... But you could use the port under Linux.
config ATARI_SCC
tristate "Atari SCC serial support"
depends on ATARI
---help---
If you have serial ports based on a Zilog SCC chip (Modem2, Serial2,
LAN) and like to use them under Linux, say Y. All built-in SCC's are
supported (TT, MegaSTE, Falcon), and also the ST-ESCC. If you have
two connectors for channel A (Serial2 and LAN), they are visible as
two separate devices.
To compile this driver as a module, choose M here.
config ATARI_SCC_DMA
bool "Atari SCC serial DMA support"
depends on ATARI_SCC
help
This enables DMA support for receiving data on channel A of the SCC.
If you have a TT you may say Y here and read
drivers/char/atari_SCC.README. All other users should say N here,
because only the TT has SCC-DMA, even if your machine keeps claiming
so at boot time.
config ATARI_MIDI
tristate "Atari MIDI serial support"
depends on ATARI
@ -578,18 +556,6 @@ config MAC_HID
depends on INPUT_ADBHID
default y
config ADB_KEYBOARD
bool "Support for ADB keyboard (old driver)"
depends on MAC && !INPUT_ADBHID
help
This option allows you to use an ADB keyboard attached to your
machine. Note that this disables any other (ie. PS/2) keyboard
support, even if your machine is physically capable of using both at
the same time.
If you use an ADB keyboard (4 pin connector), say Y here.
If you use a PS/2 keyboard (6 pin connector), say N here.
config HPDCA
tristate "HP DCA serial support"
depends on DIO && SERIAL_8250
@ -640,7 +606,7 @@ config DN_SERIAL
config SERIAL_CONSOLE
bool "Support for serial port console"
depends on (AMIGA || ATARI || MAC || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=y || ATARI_SCC=y || ATARI_MIDI=y || MAC_SCC=y || AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y || SERIAL=y || MVME147_SCC || SERIAL167 || MVME162_SCC || BVME6000_SCC || DN_SERIAL)
depends on (AMIGA || ATARI || MAC || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=y || ATARI_MIDI=y || MAC_SCC=y || AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y || SERIAL=y || MVME147_SCC || SERIAL167 || MVME162_SCC || BVME6000_SCC || DN_SERIAL)
---help---
If you say Y here, it will be possible to use a serial port as the
system console (the system console is the device which receives all

2
arch/m68k/Makefile
View File

@ -13,7 +13,7 @@
# Copyright (C) 1994 by Hamish Macdonald
#
KBUILD_DEFCONFIG := amiga_defconfig
KBUILD_DEFCONFIG := multi_defconfig
# override top level makefile
AS += -m68020

22
arch/m68k/amiga/config.c
View File

@ -36,14 +36,11 @@
#include <asm/machdep.h>
#include <asm/io.h>
unsigned long amiga_model;
EXPORT_SYMBOL(amiga_model);
static unsigned long amiga_model;
unsigned long amiga_eclock;
EXPORT_SYMBOL(amiga_eclock);
unsigned long amiga_masterclock;
unsigned long amiga_colorclock;
EXPORT_SYMBOL(amiga_colorclock);
@ -51,7 +48,9 @@ unsigned long amiga_chipset;
EXPORT_SYMBOL(amiga_chipset);
unsigned char amiga_vblank;
unsigned char amiga_psfreq;
EXPORT_SYMBOL(amiga_vblank);
static unsigned char amiga_psfreq;
struct amiga_hw_present amiga_hw_present;
EXPORT_SYMBOL(amiga_hw_present);
@ -92,8 +91,6 @@ static char *amiga_models[] __initdata = {
static char amiga_model_name[13] = "Amiga ";
static void amiga_sched_init(irq_handler_t handler);
/* amiga specific irq functions */
extern void amiga_init_IRQ(void);
static void amiga_get_model(char *model);
static int amiga_get_hardware_list(char *buffer);
/* amiga specific timer functions */
@ -107,8 +104,6 @@ static void amiga_reset(void);
extern void amiga_init_sound(void);
static void amiga_mem_console_write(struct console *co, const char *b,
unsigned int count);
void amiga_serial_console_write(struct console *co, const char *s,
unsigned int count);
#ifdef CONFIG_HEARTBEAT
static void amiga_heartbeat(int on);
#endif
@ -418,8 +413,7 @@ void __init config_amiga(void)
mach_heartbeat = amiga_heartbeat;
#endif
/* Fill in the clock values (based on the 700 kHz E-Clock) */
amiga_masterclock = 40*amiga_eclock; /* 28 MHz */
/* Fill in the clock value (based on the 700 kHz E-Clock) */
amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */
/* clear all DMA bits */
@ -817,8 +811,8 @@ static void amiga_serial_putc(char c)
;
}
void amiga_serial_console_write(struct console *co, const char *s,
unsigned int count)
static void amiga_serial_console_write(struct console *co, const char *s,
unsigned int count)
{
while (count--) {
if (*s == '\n')
@ -827,7 +821,7 @@ void amiga_serial_console_write(struct console *co, const char *s,
}
}
#ifdef CONFIG_SERIAL_CONSOLE
#if 0
void amiga_serial_puts(const char *s)
{
amiga_serial_console_write(NULL, s, strlen(s));

37
arch/m68k/atari/debug.c
View File

@ -20,14 +20,6 @@
#include <asm/atarihw.h>
#include <asm/atariints.h>
/* Flag that Modem1 port is already initialized and used */
int atari_MFP_init_done;
EXPORT_SYMBOL(atari_MFP_init_done);
/* Flag that Modem1 port is already initialized and used */
int atari_SCC_init_done;
EXPORT_SYMBOL(atari_SCC_init_done);
/* Can be set somewhere, if a SCC master reset has already be done and should
* not be repeated; used by kgdb */
int atari_SCC_reset_done;
@ -47,8 +39,8 @@ static inline void ata_mfp_out(char c)
mfp.usart_dta = c;
}
void atari_mfp_console_write(struct console *co, const char *str,
unsigned int count)
static void atari_mfp_console_write(struct console *co, const char *str,
unsigned int count)
{
while (count--) {
if (*str == '\n')
@ -66,8 +58,8 @@ static inline void ata_scc_out(char c)
scc.cha_b_data = c;
}
void atari_scc_console_write(struct console *co, const char *str,
unsigned int count)
static void atari_scc_console_write(struct console *co, const char *str,
unsigned int count)
{
while (count--) {
if (*str == '\n')
@ -83,8 +75,8 @@ static inline void ata_midi_out(char c)
acia.mid_data = c;
}
void atari_midi_console_write(struct console *co, const char *str,
unsigned int count)
static void atari_midi_console_write(struct console *co, const char *str,
unsigned int count)
{
while (count--) {
if (*str == '\n')
@ -136,7 +128,7 @@ static void atari_par_console_write(struct console *co, const char *str,
}
}
#ifdef CONFIG_SERIAL_CONSOLE
#if 0
int atari_mfp_console_wait_key(struct console *co)
{
while (!(mfp.rcv_stat & 0x80)) /* wait for rx buf filled */
@ -166,11 +158,7 @@ int atari_midi_console_wait_key(struct console *co)
* SCC serial ports. They're used by the debugging interface, kgdb, and the
* serial console code.
*/
#ifndef CONFIG_SERIAL_CONSOLE
static void __init atari_init_mfp_port(int cflag)
#else
void atari_init_mfp_port(int cflag)
#endif
{
/*
* timer values for 1200...115200 bps; > 38400 select 110, 134, or 150
@ -193,8 +181,6 @@ void atari_init_mfp_port(int cflag)
mfp.tim_dt_d = baud_table[baud];
mfp.tim_ct_cd |= 0x01; /* start timer D, 1:4 */
mfp.trn_stat |= 0x01; /* enable TX */
atari_MFP_init_done = 1;
}
#define SCC_WRITE(reg, val) \
@ -214,11 +200,7 @@ void atari_init_mfp_port(int cflag)
MFPDELAY(); \
} while (0)
#ifndef CONFIG_SERIAL_CONSOLE
static void __init atari_init_scc_port(int cflag)
#else
void atari_init_scc_port(int cflag)
#endif
{
extern int atari_SCC_reset_done;
static int clksrc_table[9] =
@ -277,14 +259,9 @@ void atari_init_scc_port(int cflag)
SCC_WRITE(5, reg5 | 8);
atari_SCC_reset_done = 1;
atari_SCC_init_done = 1;
}
#ifndef CONFIG_SERIAL_CONSOLE
static void __init atari_init_midi_port(int cflag)
#else
void atari_init_midi_port(int cflag)
#endif
{
int baud = cflag & CBAUD;
int csize = ((cflag & CSIZE) == CS8) ? 0x10 : 0x00;

1
arch/m68k/fpsp040/Makefile
View File

@ -10,7 +10,6 @@ obj-y := bindec.o binstr.o decbin.o do_func.o gen_except.o get_op.o \
x_bsun.o x_fline.o x_operr.o x_ovfl.o x_snan.o x_store.o \
x_unfl.o x_unimp.o x_unsupp.o bugfix.o skeleton.o
EXTRA_AFLAGS := -traditional
EXTRA_LDFLAGS := -x
$(OS_OBJS): fpsp.h

1
arch/m68k/ifpsp060/Makefile
View File

@ -6,5 +6,4 @@
obj-y := fskeleton.o iskeleton.o os.o
EXTRA_AFLAGS := -traditional
EXTRA_LDFLAGS := -x

2
arch/m68k/kernel/Makefile
View File

@ -16,5 +16,3 @@ devres-y = ../../../kernel/irq/devres.o
obj-$(CONFIG_PCI) += bios32.o
obj-y$(CONFIG_MMU_SUN3) += dma.o # no, it's not a typo
EXTRA_AFLAGS := -traditional

9
arch/m68k/kernel/setup.c
View File

@ -26,6 +26,7 @@
#include <asm/bootinfo.h>
#include <asm/setup.h>
#include <asm/fpu.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/machdep.h>
@ -40,6 +41,11 @@
#include <asm/dvma.h>
#endif
#if !FPSTATESIZE || !NR_IRQS
#warning No CPU/platform type selected, your kernel will not work!
#warning Are you building an allnoconfig kernel?
#endif
unsigned long m68k_machtype;
EXPORT_SYMBOL(m68k_machtype);
unsigned long m68k_cputype;
@ -116,6 +122,7 @@ extern int bvme6000_parse_bootinfo(const struct bi_record *);
extern int mvme16x_parse_bootinfo(const struct bi_record *);
extern int mvme147_parse_bootinfo(const struct bi_record *);
extern int hp300_parse_bootinfo(const struct bi_record *);
extern int apollo_parse_bootinfo(const struct bi_record *);
extern void config_amiga(void);
extern void config_atari(void);
@ -183,6 +190,8 @@ static void __init m68k_parse_bootinfo(const struct bi_record *record)
unknown = mvme147_parse_bootinfo(record);
else if (MACH_IS_HP300)
unknown = hp300_parse_bootinfo(record);
else if (MACH_IS_APOLLO)
unknown = apollo_parse_bootinfo(record);
else
unknown = 1;
}

3
arch/m68k/kernel/vmlinux-std.lds
View File

@ -1,6 +1,7 @@
/* ld script to make m68k Linux kernel */
#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
OUTPUT_FORMAT("elf32-m68k", "elf32-m68k", "elf32-m68k")
OUTPUT_ARCH(m68k)
@ -41,7 +42,7 @@ SECTIONS
_edata = .; /* End of data section */
/* will be freed after init */
. = ALIGN(4096); /* Init code and data */
. = ALIGN(PAGE_SIZE); /* Init code and data */
__init_begin = .;
.init.text : {
_sinittext = .;

7
arch/m68k/kernel/vmlinux-sun3.lds
View File

@ -1,6 +1,7 @@
/* ld script to make m68k Linux kernel */
#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
OUTPUT_FORMAT("elf32-m68k", "elf32-m68k", "elf32-m68k")
OUTPUT_ARCH(m68k)
@ -34,7 +35,7 @@ SECTIONS
_edata = .;
/* will be freed after init */
. = ALIGN(8192); /* Init code and data */
. = ALIGN(PAGE_SIZE); /* Init code and data */
__init_begin = .;
.init.text : {
_sinittext = .;
@ -61,12 +62,12 @@ __init_begin = .;
}
SECURITY_INIT
#ifdef CONFIG_BLK_DEV_INITRD
. = ALIGN(8192);
. = ALIGN(PAGE_SIZE);
__initramfs_start = .;
.init.ramfs : { *(.init.ramfs) }
__initramfs_end = .;
#endif
. = ALIGN(8192);
. = ALIGN(PAGE_SIZE);
__init_end = .;
.data.init.task : { *(.data.init_task) }

2
arch/m68k/lib/Makefile
View File

@ -2,7 +2,5 @@
# Makefile for m68k-specific library files..
#
EXTRA_AFLAGS := -traditional
lib-y := ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
checksum.o string.o uaccess.o

2
arch/m68k/mac/Makefile
View File

@ -2,5 +2,5 @@
# Makefile for Linux arch/m68k/mac source directory
#
obj-y := config.o bootparse.o macints.o iop.o via.o oss.o psc.o \
obj-y := config.o macints.o iop.o via.o oss.o psc.o \
baboon.o macboing.o debug.o misc.o

26
arch/m68k/mac/baboon.c
View File

@ -23,9 +23,7 @@
/* #define DEBUG_IRQS */
int baboon_present;
volatile struct baboon *baboon;
irqreturn_t baboon_irq(int, void *);
static volatile struct baboon *baboon;
#if 0
extern int macide_ack_intr(struct ata_channel *);
@ -49,21 +47,11 @@ void __init baboon_init(void)
printk("Baboon detected at %p\n", baboon);
}
/*
* Register the Baboon interrupt dispatcher on nubus slot $C.
*/
void __init baboon_register_interrupts(void)
{
request_irq(IRQ_NUBUS_C, baboon_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST,
"baboon", (void *) baboon);
}
/*
* Baboon interrupt handler. This works a lot like a VIA.
*/
irqreturn_t baboon_irq(int irq, void *dev_id)
static irqreturn_t baboon_irq(int irq, void *dev_id)
{
int irq_bit, irq_num;
unsigned char events;
@ -95,6 +83,16 @@ irqreturn_t baboon_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
/*
* Register the Baboon interrupt dispatcher on nubus slot $C.
*/
void __init baboon_register_interrupts(void)
{
request_irq(IRQ_NUBUS_C, baboon_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST,
"baboon", (void *) baboon);
}
void baboon_irq_enable(int irq) {
#ifdef DEBUG_IRQUSE
printk("baboon_irq_enable(%d)\n", irq);

122
arch/m68k/mac/bootparse.c
View File

@ -1,122 +0,0 @@
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/bootinfo.h>
#include <asm/macintosh.h>
/*
* Booter vars
*/
int boothowto;
int _boothowto;
/*
* Called early to parse the environment (passed to us from the booter)
* into a bootinfo struct. Will die as soon as we have our own booter
*/
#define atol(x) simple_strtoul(x,NULL,0)
void parse_booter(char *env)
{
char *name;
char *value;
#if 0
while(0 && *env)
#else
while(*env)
#endif
{
name=env;
value=name;
while(*value!='='&&*value)
value++;
if(*value=='=')
*value++=0;
env=value;
while(*env)
env++;
env++;
#if 0
if(strcmp(name,"VIDEO_ADDR")==0)
mac_mch.videoaddr=atol(value);
if(strcmp(name,"ROW_BYTES")==0)
mac_mch.videorow=atol(value);
if(strcmp(name,"SCREEN_DEPTH")==0)
mac_mch.videodepth=atol(value);
if(strcmp(name,"DIMENSIONS")==0)
mac_mch.dimensions=atol(value);
#endif
if(strcmp(name,"BOOTTIME")==0)
mac_bi_data.boottime=atol(value);
if(strcmp(name,"GMTBIAS")==0)
mac_bi_data.gmtbias=atol(value);
if(strcmp(name,"BOOTERVER")==0)
mac_bi_data.bootver=atol(value);
if(strcmp(name,"MACOS_VIDEO")==0)
mac_bi_data.videological=atol(value);
if(strcmp(name,"MACOS_SCC")==0)
mac_bi_data.sccbase=atol(value);
if(strcmp(name,"MACHINEID")==0)
mac_bi_data.id=atol(value);
if(strcmp(name,"MEMSIZE")==0)
mac_bi_data.memsize=atol(value);
if(strcmp(name,"SERIAL_MODEM_FLAGS")==0)
mac_bi_data.serialmf=atol(value);
if(strcmp(name,"SERIAL_MODEM_HSKICLK")==0)
mac_bi_data.serialhsk=atol(value);
if(strcmp(name,"SERIAL_MODEM_GPICLK")==0)
mac_bi_data.serialgpi=atol(value);
if(strcmp(name,"SERIAL_PRINT_FLAGS")==0)
mac_bi_data.printmf=atol(value);
if(strcmp(name,"SERIAL_PRINT_HSKICLK")==0)
mac_bi_data.printhsk=atol(value);
if(strcmp(name,"SERIAL_PRINT_GPICLK")==0)
mac_bi_data.printgpi=atol(value);
if(strcmp(name,"PROCESSOR")==0)
mac_bi_data.cpuid=atol(value);
if(strcmp(name,"ROMBASE")==0)
mac_bi_data.rombase=atol(value);
if(strcmp(name,"TIMEDBRA")==0)
mac_bi_data.timedbra=atol(value);
if(strcmp(name,"ADBDELAY")==0)
mac_bi_data.adbdelay=atol(value);
}
#if 0 /* XXX: TODO with m68k_mach_* */
/* Fill in the base stuff */
boot_info.machtype=MACH_MAC;
/* Read this from the macinfo we got ! */
/* boot_info.cputype=CPU_68020|FPUB_68881;*/
/* boot_info.memory[0].addr=0;*/
/* boot_info.memory[0].size=((mac_bi_data.id>>7)&31)<<20;*/
boot_info.num_memory=1; /* On a MacII */
boot_info.ramdisk_size=0; /* For now */
*boot_info.command_line=0;
#endif
}
void print_booter(char *env)
{
char *name;
char *value;
while(*env)
{
name=env;
value=name;
while(*value!='='&&*value)
value++;
if(*value=='=')
*value++=0;
env=value;
while(*env)
env++;
env++;
printk("%s=%s\n", name,value);
}
}

11
arch/m68k/mac/config.c
View File

@ -46,7 +46,6 @@
/* Mac bootinfo struct */
struct mac_booter_data mac_bi_data;
int mac_bisize = sizeof mac_bi_data;
/* New m68k bootinfo stuff and videobase */
@ -55,10 +54,8 @@ extern struct mem_info m68k_memory[NUM_MEMINFO];
extern struct mem_info m68k_ramdisk;
void *mac_env; /* Loaded by the boot asm */
/* The phys. video addr. - might be bogus on some machines */
unsigned long mac_orig_videoaddr;
static unsigned long mac_orig_videoaddr;
/* Mac specific timer functions */
extern unsigned long mac_gettimeoffset(void);
@ -79,6 +76,8 @@ extern void mac_mksound(unsigned int, unsigned int);
extern void nubus_sweep_video(void);
static void mac_get_model(char *str);
static void mac_identify(void);
static void mac_report_hardware(void);
static void __init mac_sched_init(irq_handler_t vector)
{
@ -765,7 +764,7 @@ static struct mac_model mac_data_table[] = {
}
};
void __init mac_identify(void)
static void __init mac_identify(void)
{
struct mac_model *m;
@ -821,7 +820,7 @@ void __init mac_identify(void)
baboon_init();
}
void __init mac_report_hardware(void)
static void __init mac_report_hardware(void)
{
printk(KERN_INFO "Apple Macintosh %s\n", macintosh_config->name);
}

41
arch/m68k/mac/debug.c
View File

@ -51,6 +51,8 @@ extern void mac_serial_print(const char *);
static int peng, line;
#endif
#if 0
void mac_debugging_short(int pos, short num)
{
#ifdef DEBUG_SCREEN
@ -125,6 +127,8 @@ void mac_debugging_long(int pos, long addr)
#endif
}
#endif /* 0 */
#ifdef DEBUG_SERIAL
/*
* TODO: serial debug code
@ -142,12 +146,6 @@ struct mac_SCC {
# define scc (*((volatile struct mac_SCC*)mac_bi_data.sccbase))
/* Flag that serial port is already initialized and used */
int mac_SCC_init_done;
/* Can be set somewhere, if a SCC master reset has already be done and should
* not be repeated; used by kgdb */
int mac_SCC_reset_done;
static int scc_port = -1;
static struct console mac_console_driver = {
@ -171,8 +169,8 @@ static struct console mac_console_driver = {
* this driver if Mac.
*/
void mac_debug_console_write(struct console *co, const char *str,
unsigned int count)
static void mac_debug_console_write(struct console *co, const char *str,
unsigned int count)
{
mac_serial_print(str);
}
@ -209,8 +207,8 @@ static inline void mac_scca_out(char c)
scc.cha_a_data = c;
}
void mac_sccb_console_write(struct console *co, const char *str,
unsigned int count)
static void mac_sccb_console_write(struct console *co, const char *str,
unsigned int count)
{
while (count--) {
if (*str == '\n')
@ -219,8 +217,8 @@ void mac_sccb_console_write(struct console *co, const char *str,
}
}
void mac_scca_console_write(struct console *co, const char *str,
unsigned int count)
static void mac_scca_console_write(struct console *co, const char *str,
unsigned int count)
{
while (count--) {
if (*str == '\n')
@ -265,14 +263,8 @@ void mac_scca_console_write(struct console *co, const char *str,
barrier(); \
} while(0)
#ifndef CONFIG_SERIAL_CONSOLE
static void __init mac_init_scc_port(int cflag, int port)
#else
void mac_init_scc_port(int cflag, int port)
#endif
{
extern int mac_SCC_reset_done;
/*
* baud rates: 1200, 1800, 2400, 4800, 9600, 19.2k, 38.4k, 57.6k, 115.2k
*/
@ -340,22 +332,9 @@ void mac_init_scc_port(int cflag, int port)
SCCA_WRITE(3, reg3 | 1);
SCCA_WRITE(5, reg5 | 8);
}
mac_SCC_reset_done = 1;
mac_SCC_init_done = 1;
}
#endif /* DEBUG_SERIAL */
void mac_init_scca_port(int cflag)
{
mac_init_scc_port(cflag, 0);
}
void mac_init_sccb_port(int cflag)
{
mac_init_scc_port(cflag, 1);
}
static int __init mac_debug_setup(char *arg)
{
if (!MACH_IS_MAC)

8
arch/m68k/mac/oss.c
View File

@ -30,8 +30,8 @@
int oss_present;
volatile struct mac_oss *oss;
irqreturn_t oss_irq(int, void *);
irqreturn_t oss_nubus_irq(int, void *);
static irqreturn_t oss_irq(int, void *);
static irqreturn_t oss_nubus_irq(int, void *);
extern irqreturn_t via1_irq(int, void *);
extern irqreturn_t mac_scc_dispatch(int, void *);
@ -92,7 +92,7 @@ void __init oss_nubus_init(void)
* and SCSI; everything else is routed to its own autovector IRQ.
*/
irqreturn_t oss_irq(int irq, void *dev_id)
static irqreturn_t oss_irq(int irq, void *dev_id)
{
int events;
@ -126,7 +126,7 @@ irqreturn_t oss_irq(int irq, void *dev_id)
* Unlike the VIA/RBV this is on its own autovector interrupt level.
*/
irqreturn_t oss_nubus_irq(int irq, void *dev_id)
static irqreturn_t oss_nubus_irq(int irq, void *dev_id)
{
int events, irq_bit, i;

4
arch/m68k/mac/psc.c
View File

@ -36,7 +36,7 @@ irqreturn_t psc_irq(int, void *);
* Debugging dump, used in various places to see what's going on.
*/
void psc_debug_dump(void)
static void psc_debug_dump(void)
{
int i;
@ -55,7 +55,7 @@ void psc_debug_dump(void)
* expanded to cover what I think are the other 7 channels.
*/
void psc_dma_die_die_die(void)
static void psc_dma_die_die_die(void)
{
int i;

2
arch/m68k/mac/via.c
View File

@ -45,7 +45,7 @@ volatile long *via_memory_bogon=(long *)&via_memory_bogon;
int rbv_present;
int via_alt_mapping;
EXPORT_SYMBOL(via_alt_mapping);
__u8 rbv_clear;
static __u8 rbv_clear;
/*
* Globals for accessing the VIA chip registers without having to

2
arch/m68k/math-emu/Makefile
View File

@ -2,8 +2,6 @@
# Makefile for the linux kernel.
#
EXTRA_AFLAGS := -traditional
#EXTRA_AFLAGS += -DFPU_EMU_DEBUG
#EXTRA_CFLAGS += -DFPU_EMU_DEBUG

1
arch/m68k/mm/motorola.c
View File

@ -285,7 +285,6 @@ void __init paging_init(void)
* to a couple of allocated pages
*/
empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
memset(empty_zero_page, 0, PAGE_SIZE);
/*
* Set up SFC/DFC registers

1
arch/m68k/mm/sun3mmu.c
View File

@ -53,7 +53,6 @@ void __init paging_init(void)
wp_works_ok = 0;
#endif
empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
memset(empty_zero_page, 0, PAGE_SIZE);
address = PAGE_OFFSET;
pg_dir = swapper_pg_dir;

26
arch/m68k/q40/config.c
View File

@ -41,14 +41,12 @@ static void q40_get_model(char *model);
static int q40_get_hardware_list(char *buffer);
extern void q40_sched_init(irq_handler_t handler);
extern unsigned long q40_gettimeoffset(void);
extern int q40_hwclk(int, struct rtc_time *);
extern unsigned int q40_get_ss(void);
extern int q40_set_clock_mmss(unsigned long);
static unsigned long q40_gettimeoffset(void);
static int q40_hwclk(int, struct rtc_time *);
static unsigned int q40_get_ss(void);
static int q40_set_clock_mmss(unsigned long);
static int q40_get_rtc_pll(struct rtc_pll_info *pll);
static int q40_set_rtc_pll(struct rtc_pll_info *pll);
extern void q40_reset(void);
void q40_halt(void);
extern void q40_waitbut(void);
void q40_set_vectors(void);
@ -127,7 +125,7 @@ static void q40_heartbeat(int on)
}
#endif
void q40_reset(void)
static void q40_reset(void)
{
halted = 1;
printk("\n\n*******************************************\n"
@ -137,7 +135,8 @@ void q40_reset(void)
while (1)
;
}
void q40_halt(void)
static void q40_halt(void)
{
halted = 1;
printk("\n\n*******************\n"
@ -165,7 +164,8 @@ static unsigned int serports[] =
{
0x3f8,0x2f8,0x3e8,0x2e8,0
};
void q40_disable_irqs(void)
static void q40_disable_irqs(void)
{
unsigned i, j;
@ -227,7 +227,7 @@ static inline unsigned char bin2bcd(unsigned char b)
}
unsigned long q40_gettimeoffset(void)
static unsigned long q40_gettimeoffset(void)
{
return 5000 * (ql_ticks != 0);
}
@ -248,7 +248,7 @@ unsigned long q40_gettimeoffset(void)
* };
*/
int q40_hwclk(int op, struct rtc_time *t)
static int q40_hwclk(int op, struct rtc_time *t)
{
if (op) {
/* Write.... */
@ -285,7 +285,7 @@ int q40_hwclk(int op, struct rtc_time *t)
return 0;
}
unsigned int q40_get_ss(void)
static unsigned int q40_get_ss(void)
{
return bcd2bin(Q40_RTC_SECS);
}
@ -295,7 +295,7 @@ unsigned int q40_get_ss(void)
* clock is out by > 30 minutes. Logic lifted from atari code.
*/
int q40_set_clock_mmss(unsigned long nowtime)
static int q40_set_clock_mmss(unsigned long nowtime)
{
int retval = 0;
short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;

2
arch/m68k/sun3/Makefile
View File

@ -2,6 +2,6 @@
# Makefile for Linux arch/m68k/sun3 source directory
#
obj-y := sun3ints.o sun3dvma.o sbus.o idprom.o
obj-y := sun3ints.o sun3dvma.o idprom.o
obj-$(CONFIG_SUN3) += config.o mmu_emu.o leds.o dvma.o intersil.o

7
arch/m68k/sun3/config.c
View File

@ -36,7 +36,7 @@ extern char _text, _end;
char sun3_reserved_pmeg[SUN3_PMEGS_NUM];
extern unsigned long sun3_gettimeoffset(void);
extern void sun3_sched_init(irq_handler_t handler);
static void sun3_sched_init(irq_handler_t handler);
extern void sun3_get_model (char* model);
extern void idprom_init (void);
extern int sun3_hwclk(int set, struct rtc_time *t);
@ -114,7 +114,8 @@ static void sun3_halt (void)
/* sun3 bootmem allocation */
void __init sun3_bootmem_alloc(unsigned long memory_start, unsigned long memory_end)
static void __init sun3_bootmem_alloc(unsigned long memory_start,
unsigned long memory_end)
{
unsigned long start_page;
@ -164,7 +165,7 @@ void __init config_sun3(void)
sun3_bootmem_alloc(memory_start, memory_end);
}
void __init sun3_sched_init(irq_handler_t timer_routine)
static void __init sun3_sched_init(irq_handler_t timer_routine)
{
sun3_disable_interrupts();
intersil_clock->cmd_reg=(INTERSIL_RUN|INTERSIL_INT_DISABLE|INTERSIL_24H_MODE);

Some files were not shown because too many files have changed in this diff Show More