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Tony Luck 2005-07-08 08:52:42 -07:00
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132
Documentation/dvb/README.dvb-usb
View file

@ -13,14 +13,17 @@ different way: With the help of a dvb-usb-framework.
The framework provides generic functions (mostly kernel API calls), such as:
- Transport Stream URB handling in conjunction with dvb-demux-feed-control
(bulk and isoc (TODO) are supported)
(bulk and isoc are supported)
- registering the device for the DVB-API
- registering an I2C-adapter if applicable
- remote-control/input-device handling
- firmware requesting and loading (currently just for the Cypress USB
controller)
controllers)
- other functions/methods which can be shared by several drivers (such as
functions for bulk-control-commands)
- TODO: a I2C-chunker. It creates device-specific chunks of register-accesses
depending on length of a register and the number of values that can be
multi-written and multi-read.
The source code of the particular DVB USB devices does just the communication
with the device via the bus. The connection between the DVB-API-functionality
@ -36,93 +39,18 @@ the dvb-usb-lib.
TODO: dynamic enabling and disabling of the pid-filter in regard to number of
feeds requested.
Supported devices USB1.1
Supported devices
========================
Produced and reselled by Twinhan:
---------------------------------
- TwinhanDTV USB-Ter DVB-T Device (VP7041)
http://www.twinhan.com/product_terrestrial_3.asp
See the LinuxTV DVB Wiki at www.linuxtv.org for a complete list of
cards/drivers/firmwares:
- TwinhanDTV Magic Box (VP7041e)
http://www.twinhan.com/product_terrestrial_4.asp
- HAMA DVB-T USB device
http://www.hama.de/portal/articleId*110620/action*2598
- CTS Portable (Chinese Television System) (2)
http://www.2cts.tv/ctsportable/
- Unknown USB DVB-T device with vendor ID Hyper-Paltek
Produced and reselled by KWorld:
--------------------------------
- KWorld V-Stream XPERT DTV DVB-T USB
http://www.kworld.com.tw/en/product/DVBT-USB/DVBT-USB.html
- JetWay DTV DVB-T USB
http://www.jetway.com.tw/evisn/product/lcd-tv/DVT-USB/dtv-usb.htm
- ADSTech Instant TV DVB-T USB
http://www.adstech.com/products/PTV-333/intro/PTV-333_intro.asp?pid=PTV-333
Others:
-------
- Ultima Electronic/Artec T1 USB TVBOX (AN2135, AN2235, AN2235 with Panasonic Tuner)
http://82.161.246.249/products-tvbox.html
- Compro Videomate DVB-U2000 - DVB-T USB (2)
http://www.comprousa.com/products/vmu2000.htm
- Grandtec USB DVB-T
http://www.grand.com.tw/
- AVerMedia AverTV DVBT USB
http://www.avermedia.com/
- DiBcom USB DVB-T reference device (non-public)
Supported devices USB2.0-only
=============================
- Twinhan MagicBox II
http://www.twinhan.com/product_terrestrial_7.asp
- TwinhanDTV Alpha
http://www.twinhan.com/product_terrestrial_8.asp
- DigitalNow TinyUSB 2 DVB-t Receiver
http://www.digitalnow.com.au/DigitalNow%20tinyUSB2%20Specifications.html
- Hanftek UMT-010
http://www.globalsources.com/si/6008819757082/ProductDetail/Digital-TV/product_id-100046529
Supported devices USB2.0 and USB1.1
=============================
- Typhoon/Yakumo/HAMA/Yuan DVB-T mobile USB2.0
http://www.yakumo.de/produkte/index.php?pid=1&ag=DVB-T
http://www.yuan.com.tw/en/products/vdo_ub300.html
http://www.hama.de/portal/articleId*114663/action*2563
http://www.anubisline.com/english/articlec.asp?id=50502&catid=002
- Artec T1 USB TVBOX (FX2) (2)
- Hauppauge WinTV NOVA-T USB2
http://www.hauppauge.com/
- KWorld/ADSTech Instant DVB-T USB2.0 (DiB3000M-B)
- DiBcom USB2.0 DVB-T reference device (non-public)
- AVerMedia AverTV A800 DVB-T USB2.0
1) It is working almost - work-in-progress.
2) No test reports received yet.
http://www.linuxtv.org/wiki/index.php/DVB_USB
0. History & News:
2005-06-30 - added support for WideView WT-220U (Thanks to Steve Chang)
2005-05-30 - added basic isochronous support to the dvb-usb-framework
added support for Conexant Hybrid reference design and Nebula DigiTV USB
2005-04-17 - all dibusb devices ported to make use of the dvb-usb-framework
2005-04-02 - re-enabled and improved remote control code.
2005-03-31 - ported the Yakumo/Hama/Typhoon DVB-T USB2.0 device to dvb-usb.
@ -137,7 +65,7 @@ Supported devices USB2.0 and USB1.1
2005-01-31 - distorted streaming is gone for USB1.1 devices
2005-01-13 - moved the mirrored pid_filter_table back to dvb-dibusb
- first almost working version for HanfTek UMT-010
- found out, that Yakumo/HAMA/Typhoon are predessors of the HanfTek UMT-010
- found out, that Yakumo/HAMA/Typhoon are predecessors of the HanfTek UMT-010
2005-01-10 - refactoring completed, now everything is very delightful
- tuner quirks for some weird devices (Artec T1 AN2235 device has sometimes a
Panasonic Tuner assembled). Tunerprobing implemented. Thanks a lot to Gunnar Wittich.
@ -187,25 +115,13 @@ Supported devices USB2.0 and USB1.1
1. How to use?
1.1. Firmware
Most of the USB drivers need to download a firmware to start working.
Most of the USB drivers need to download a firmware to the device before start
working.
for USB1.1 (AN2135) you need: dvb-usb-dibusb-5.0.0.11.fw
for USB2.0 HanfTek: dvb-usb-umt-010-02.fw
for USB2.0 DiBcom: dvb-usb-dibusb-6.0.0.8.fw
for USB2.0 AVerMedia AverTV DVB-T USB2: dvb-usb-avertv-a800-01.fw
for USB2.0 TwinhanDTV Alpha/MagicBox II: dvb-usb-vp7045-01.fw
Have a look at the Wikipage for the DVB-USB-drivers to find out, which firmware
you need for your device:
The files can be found on http://www.linuxtv.org/download/firmware/ .
We do not have the permission (yet) to publish the following firmware-files.
You'll need to extract them from the windows drivers.
You should be able to use "get_dvb_firmware dvb-usb" to get the firmware:
for USB1.1 (AN2235) (a few Artec T1 devices): dvb-usb-dibusb-an2235-01.fw
for USB2.0 Hauppauge: dvb-usb-nova-t-usb2-01.fw
for USB2.0 ADSTech/Kworld USB2.0: dvb-usb-adstech-usb2-01.fw
for USB2.0 Yakumo/Typhoon/Hama: dvb-usb-dtt200u-01.fw
http://www.linuxtv.org/wiki/index.php/DVB_USB
1.2. Compiling
@ -289,6 +205,9 @@ Patches, comments and suggestions are very very welcome.
Gunnar Wittich and Joachim von Caron for their trust for providing
root-shells on their machines to implement support for new devices.
Allan Third and Michael Hutchinson for their help to write the Nebula
digitv-driver.
Glen Harris for bringing up, that there is a new dibusb-device and Jiun-Kuei
Jung from AVerMedia who kindly provided a special firmware to get the device
up and running in Linux.
@ -296,7 +215,12 @@ Patches, comments and suggestions are very very welcome.
Jennifer Chen, Jeff and Jack from Twinhan for kindly supporting by
writing the vp7045-driver.
Some guys on the linux-dvb mailing list for encouraging me
Steve Chang from WideView for providing information for new devices and
firmware files.
Michael Paxton for submitting remote control keymaps.
Some guys on the linux-dvb mailing list for encouraging me.
Peter Schildmann >peter.schildmann-nospam-at-web.de< for his
user-level firmware loader, which saves a lot of time
@ -305,4 +229,4 @@ Patches, comments and suggestions are very very welcome.
Ulf Hermenau for helping me out with traditional chinese.
André Smoktun and Christian Frömmel for supporting me with
hardware and listening to my problems very patient.
hardware and listening to my problems very patiently.

85
Documentation/dvb/bt8xx.txt
View file

@ -1,66 +1,55 @@
How to get the Nebula, PCTV and Twinhan DST cards working
=========================================================
How to get the Nebula Electronics DigiTV, Pinnacle PCTV Sat, Twinhan DST + clones working
=========================================================================================
This class of cards has a bt878a as the PCI interface, and
require the bttv driver.
1) General information
======================
Please pay close attention to the warning about the bttv module
options below for the DST card.
This class of cards has a bt878a chip as the PCI interface.
The different card drivers require the bttv driver to provide the means
to access the i2c bus and the gpio pins of the bt8xx chipset.
1) General informations
=======================
2) Compilation rules for Kernel >= 2.6.12
=========================================
These drivers require the bttv driver to provide the means to access
the i2c bus and the gpio pins of the bt8xx chipset.
Enable the following options:
Because of this, you need to enable
"Device drivers" => "Multimedia devices"
=> "Video For Linux" => "BT848 Video For Linux"
Furthermore you need to enable
=> "Video For Linux" => "BT848 Video For Linux"
"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
=> "DVB for Linux" "DVB Core Support" "Nebula/Pinnacle PCTV/TwinHan PCI Cards"
=> "DVB for Linux" "DVB Core Support" "Nebula/Pinnacle PCTV/TwinHan PCI Cards"
2) Loading Modules
==================
3) Loading Modules, described by two approaches
===============================================
In general you need to load the bttv driver, which will handle the gpio and
i2c communication for us, plus the common dvb-bt8xx device driver.
The frontends for Nebula (nxt6000), Pinnacle PCTV (cx24110) and
TwinHan (dst) are loaded automatically by the dvb-bt8xx device driver.
i2c communication for us, plus the common dvb-bt8xx device driver,
which is called the backend.
The frontends for Nebula DigiTV (nxt6000), Pinnacle PCTV Sat (cx24110),
TwinHan DST + clones (dst and dst-ca) are loaded automatically by the backend.
For further details about TwinHan DST + clones see /Documentation/dvb/ci.txt.
3a) Nebula / Pinnacle PCTV
3a) The manual approach
-----------------------
Loading modules:
modprobe bttv
modprobe dvb-bt8xx
Unloading modules:
modprobe -r dvb-bt8xx
modprobe -r bttv
3b) The automatic approach
--------------------------
$ modprobe bttv (normally bttv is being loaded automatically by kmod)
$ modprobe dvb-bt8xx (or just place dvb-bt8xx in /etc/modules for automatic loading)
If not already done by installation, place a line either in
/etc/modules.conf or in /etc/modprobe.conf containing this text:
alias char-major-81 bttv
Then place a line in /etc/modules containing this text:
dvb-bt8xx
3b) TwinHan and Clones
--------------------------
$ modprobe bttv i2c_hw=1 card=0x71
$ modprobe dvb-bt8xx
$ modprobe dst
The value 0x71 will override the PCI type detection for dvb-bt8xx,
which is necessary for TwinHan cards.
If you're having an older card (blue color circuit) and card=0x71 locks
your machine, try using 0x68, too. If that does not work, ask on the
mailing list.
The DST module takes a couple of useful parameters:
a. verbose takes values 0 to 5. These values control the verbosity level.
b. debug takes values 0 and 1. You can either disable or enable debugging.
c. dst_addons takes values 0 and 0x20:
- A value of 0 means it is a FTA card.
- A value of 0x20 means it has a Conditional Access slot.
The autodetected values are determined by the "response string"
of the card, which you can see in your logs:
e.g.: dst_get_device_id: Recognize [DSTMCI]
Reboot your system and have fun!
--
Authors: Richard Walker, Jamie Honan, Michael Hunold, Manu Abraham, Uwe Bugla

16
Documentation/feature-removal-schedule.txt
View file

@ -119,3 +119,19 @@ Why: Match the other drivers' name for the same function, duplicate names
will be available until removal of old names.
Who: Grant Coady <gcoady@gmail.com>
---------------------------
What: PCMCIA control ioctl (needed for pcmcia-cs [cardmgr, cardctl])
When: November 2005
Files: drivers/pcmcia/: pcmcia_ioctl.c
Why: With the 16-bit PCMCIA subsystem now behaving (almost) like a
normal hotpluggable bus, and with it using the default kernel
infrastructure (hotplug, driver core, sysfs) keeping the PCMCIA
control ioctl needed by cardmgr and cardctl from pcmcia-cs is
unnecessary, and makes further cleanups and integration of the
PCMCIA subsystem into the Linux kernel device driver model more
difficult. The features provided by cardmgr and cardctl are either
handled by the kernel itself now or are available in the new
pcmciautils package available at
http://kernel.org/pub/linux/utils/kernel/pcmcia/
Who: Dominik Brodowski <linux@brodo.de>

69
Documentation/infiniband/user_verbs.txt Normal file
View file

@ -0,0 +1,69 @@
USERSPACE VERBS ACCESS
The ib_uverbs module, built by enabling CONFIG_INFINIBAND_USER_VERBS,
enables direct userspace access to IB hardware via "verbs," as
described in chapter 11 of the InfiniBand Architecture Specification.
To use the verbs, the libibverbs library, available from
<http://openib.org/>, is required. libibverbs contains a
device-independent API for using the ib_uverbs interface.
libibverbs also requires appropriate device-dependent kernel and
userspace driver for your InfiniBand hardware. For example, to use
a Mellanox HCA, you will need the ib_mthca kernel module and the
libmthca userspace driver be installed.
User-kernel communication
Userspace communicates with the kernel for slow path, resource
management operations via the /dev/infiniband/uverbsN character
devices. Fast path operations are typically performed by writing
directly to hardware registers mmap()ed into userspace, with no
system call or context switch into the kernel.
Commands are sent to the kernel via write()s on these device files.
The ABI is defined in drivers/infiniband/include/ib_user_verbs.h.
The structs for commands that require a response from the kernel
contain a 64-bit field used to pass a pointer to an output buffer.
Status is returned to userspace as the return value of the write()
system call.
Resource management
Since creation and destruction of all IB resources is done by
commands passed through a file descriptor, the kernel can keep track
of which resources are attached to a given userspace context. The
ib_uverbs module maintains idr tables that are used to translate
between kernel pointers and opaque userspace handles, so that kernel
pointers are never exposed to userspace and userspace cannot trick
the kernel into following a bogus pointer.
This also allows the kernel to clean up when a process exits and
prevent one process from touching another process's resources.
Memory pinning
Direct userspace I/O requires that memory regions that are potential
I/O targets be kept resident at the same physical address. The
ib_uverbs module manages pinning and unpinning memory regions via
get_user_pages() and put_page() calls. It also accounts for the
amount of memory pinned in the process's locked_vm, and checks that
unprivileged processes do not exceed their RLIMIT_MEMLOCK limit.
Pages that are pinned multiple times are counted each time they are
pinned, so the value of locked_vm may be an overestimate of the
number of pages pinned by a process.
/dev files
To create the appropriate character device files automatically with
udev, a rule like
KERNEL="uverbs*", NAME="infiniband/%k"
can be used. This will create device nodes named
/dev/infiniband/uverbs0
and so on. Since the InfiniBand userspace verbs should be safe for
use by non-privileged processes, it may be useful to add an
appropriate MODE or GROUP to the udev rule.

1
Documentation/power/video.txt
View file

@ -117,6 +117,7 @@ IBM Thinkpad X40 Type 2371-7JG s3_bios,s3_mode (4)
Medion MD4220 ??? (*)
Samsung P35 vbetool needed (6)
Sharp PC-AR10 (ATI rage) none (1)
Sony Vaio PCG-C1VRX/K s3_bios (2)
Sony Vaio PCG-F403 ??? (*)
Sony Vaio PCG-N505SN ??? (*)
Sony Vaio vgn-s260 X or boot-radeon can init it (5)

7
MAINTAINERS
View file

@ -370,6 +370,10 @@ W: http://www.thekelleys.org.uk/atmel
W: http://atmelwlandriver.sourceforge.net/
S: Maintained
AUDIT SUBSYSTEM
L: linux-audit@redhat.com (subscribers-only)
S: Maintained
AX.25 NETWORK LAYER
P: Ralf Baechle
M: ralf@linux-mips.org
@ -1803,8 +1807,9 @@ M: greg@kroah.com
S: Maintained
PCMCIA SUBSYSTEM
P: Linux PCMCIA Team
L: http://lists.infradead.org/mailman/listinfo/linux-pcmcia
S: Unmaintained
S: Maintained
PCNET32 NETWORK DRIVER
P: Thomas Bogendörfer

6
Makefile
View file

@ -792,6 +792,9 @@ export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
$(Q)$(MAKE) $(build)=$(@D) $@
%.o: %.c scripts FORCE
$(Q)$(MAKE) $(build)=$(@D) $@
%.ko: scripts FORCE
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D) $(@:.ko=.o)
$(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
%/: scripts prepare FORCE
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D)
%.lst: %.c scripts FORCE
@ -1033,6 +1036,7 @@ help:
@echo ' modules_install - Install all modules'
@echo ' dir/ - Build all files in dir and below'
@echo ' dir/file.[ois] - Build specified target only'
@echo ' dir/file.ko - Build module including final link'
@echo ' rpm - Build a kernel as an RPM package'
@echo ' tags/TAGS - Generate tags file for editors'
@echo ' cscope - Generate cscope index'
@ -1149,7 +1153,7 @@ endif # KBUILD_EXTMOD
#(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
#Adding $(srctree) adds about 20M on i386 to the size of the output file!
ifeq ($(KBUILD_OUTPUT),)
ifeq ($(src),$(obj))
__srctree =
else
__srctree = $(srctree)/

627
arch/frv/defconfig Normal file
View file

@ -0,0 +1,627 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.11.8
# Fri May 13 17:16:03 2005
#
CONFIG_FRV=y
CONFIG_UID16=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
# CONFIG_GENERIC_CALIBRATE_DELAY is not set
# CONFIG_GENERIC_HARDIRQS is not set
#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
# CONFIG_HOTPLUG is not set
# CONFIG_KOBJECT_UEVENT is not set
# CONFIG_IKCONFIG is not set
CONFIG_EMBEDDED=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SHMEM=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
#
# Loadable module support
#
# CONFIG_MODULES is not set
#
# Fujitsu FR-V system setup
#
CONFIG_MMU=y
CONFIG_FRV_OUTOFLINE_ATOMIC_OPS=y
CONFIG_HIGHMEM=y
CONFIG_HIGHPTE=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
# CONFIG_FRV_DEFL_CACHE_WBACK is not set
# CONFIG_FRV_DEFL_CACHE_WBEHIND is not set
CONFIG_FRV_DEFL_CACHE_WTHRU=y
# CONFIG_FRV_DEFL_CACHE_DISABLED is not set
#
# CPU core support
#
CONFIG_CPU_FR451=y
CONFIG_CPU_FR451_COMPILE=y
CONFIG_FRV_L1_CACHE_SHIFT=5
CONFIG_MB93091_VDK=y
# CONFIG_MB93093_PDK is not set
CONFIG_MB93090_MB00=y
# CONFIG_MB93091_NO_MB is not set
# CONFIG_GPREL_DATA_8 is not set
CONFIG_GPREL_DATA_4=y
# CONFIG_GPREL_DATA_NONE is not set
CONFIG_PCI=y
# CONFIG_PCI_LEGACY_PROC is not set
# CONFIG_PCI_NAMES is not set
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCMCIA is not set
#
# Power management options
#
# CONFIG_PM is not set
#
# Executable formats
#
# CONFIG_BINFMT_ELF is not set
CONFIG_BINFMT_ELF_FDPIC=y
# CONFIG_BINFMT_MISC is not set
#
# Device Drivers
#
#
# Generic Driver Options
#
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
# CONFIG_DEBUG_DRIVER is not set
#
# Connector - unified userspace <-> kernelspace linker
#
# CONFIG_CONNECTOR is not set
# CONFIG_FORK_CONNECTOR is not set
#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Plug and Play support
#
#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CDROM_PKTCDVD is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_ATA_OVER_ETH is not set
#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set
#
# SCSI device support
#
# CONFIG_SCSI is not set
#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
# CONFIG_I2O is not set
#
# Networking support
#
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
# CONFIG_IP_PNP_DHCP is not set
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_IP_TCPDIAG is not set
# CONFIG_IP_TCPDIAG_IPV6 is not set
# CONFIG_IPV6 is not set
# CONFIG_NETFILTER is not set
#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set
# CONFIG_NET_CLS_ROUTE is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_KGDBOE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NETPOLL_RX is not set
# CONFIG_NETPOLL_TRAP is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_IEEE80211 is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
#
# ARCnet devices
#
# CONFIG_ARCNET is not set
#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
#
# Tulip family network device support
#
# CONFIG_NET_TULIP is not set
# CONFIG_HP100 is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_DGRS is not set
# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
CONFIG_NE2K_PCI=y
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SKGE is not set
# CONFIG_SK98LIN is not set
# CONFIG_VIA_VELOCITY is not set
# CONFIG_TIGON3 is not set
#
# Ethernet (10000 Mbit)
#
# CONFIG_CHELSIO_T1 is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
#
# Token Ring devices
#
# CONFIG_TR is not set
#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set
#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set
#
# ISDN subsystem
#
# CONFIG_ISDN is not set
#
# Telephony Support
#
# CONFIG_PHONE is not set
#
# Input device support
#
# CONFIG_INPUT is not set
#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
# CONFIG_VT is not set
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=1
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_MULTIPORT is not set
# CONFIG_SERIAL_8250_RSA is not set
#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_RTC is not set
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# Ftape, the floppy tape device driver
#
# CONFIG_DRM is not set
# CONFIG_RAW_DRIVER is not set
#
# TPM devices
#
# CONFIG_TCG_TPM is not set
#
# I2C support
#
# CONFIG_I2C is not set
#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set
#
# Misc devices
#
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set
#
# Graphics support
#
# CONFIG_FB is not set
#
# Sound
#
# CONFIG_SOUND is not set
#
# USB support
#
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
# CONFIG_USB is not set
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# MMC/SD Card support
#
# CONFIG_MMC is not set
#
# InfiniBand support
#
# CONFIG_INFINIBAND is not set
#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_REISER4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
#
# XFS support
#
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_INOTIFY=y
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
#
# Caches
#
# CONFIG_FSCACHE is not set
# CONFIG_FUSE_FS is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_SYSFS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVPTS_FS_XATTR is not set
CONFIG_TMPFS=y
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
# CONFIG_RELAYFS_FS is not set
#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
#
# Network File Systems
#
CONFIG_NFS_FS=y
# CONFIG_NFS_V3 is not set
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
# CONFIG_NFSD is not set
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
#
# Native Language Support
#
# CONFIG_NLS is not set
#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_HIGHMEM is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_FRAME_POINTER is not set
# CONFIG_EARLY_PRINTK is not set
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_GDBSTUB is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
# CONFIG_CRYPTO is not set
#
# Hardware crypto devices
#
#
# Library routines
#
# CONFIG_CRC_CCITT is not set
CONFIG_CRC32=y
# CONFIG_LIBCRC32C is not set

5
arch/i386/kernel/cpu/common.c
View file

@ -435,6 +435,11 @@ void __devinit identify_cpu(struct cpuinfo_x86 *c)
if (c == &boot_cpu_data)
sysenter_setup();
enable_sep_cpu();
if (c == &boot_cpu_data)
mtrr_bp_init();
else
mtrr_ap_init();
}
#ifdef CONFIG_X86_HT

2
arch/i386/kernel/cpu/intel.c
View file

@ -25,7 +25,7 @@ extern int trap_init_f00f_bug(void);
/*
* Alignment at which movsl is preferred for bulk memory copies.
*/
struct movsl_mask movsl_mask;
struct movsl_mask movsl_mask __read_mostly;
#endif
void __devinit early_intel_workaround(struct cpuinfo_x86 *c)

22
arch/i386/kernel/cpu/mtrr/generic.c
View file

@ -67,13 +67,6 @@ void __init get_mtrr_state(void)
mtrr_state.enabled = (lo & 0xc00) >> 10;
}
/* Free resources associated with a struct mtrr_state */
void __init finalize_mtrr_state(void)
{
kfree(mtrr_state.var_ranges);
mtrr_state.var_ranges = NULL;
}
/* Some BIOS's are fucked and don't set all MTRRs the same! */
void __init mtrr_state_warn(void)
{
@ -334,6 +327,9 @@ static void generic_set_mtrr(unsigned int reg, unsigned long base,
*/
{
unsigned long flags;
struct mtrr_var_range *vr;
vr = &mtrr_state.var_ranges[reg];
local_irq_save(flags);
prepare_set();
@ -342,11 +338,15 @@ static void generic_set_mtrr(unsigned int reg, unsigned long base,
/* The invalid bit is kept in the mask, so we simply clear the
relevant mask register to disable a range. */
mtrr_wrmsr(MTRRphysMask_MSR(reg), 0, 0);
memset(vr, 0, sizeof(struct mtrr_var_range));
} else {
mtrr_wrmsr(MTRRphysBase_MSR(reg), base << PAGE_SHIFT | type,
(base & size_and_mask) >> (32 - PAGE_SHIFT));
mtrr_wrmsr(MTRRphysMask_MSR(reg), -size << PAGE_SHIFT | 0x800,
(-size & size_and_mask) >> (32 - PAGE_SHIFT));
vr->base_lo = base << PAGE_SHIFT | type;
vr->base_hi = (base & size_and_mask) >> (32 - PAGE_SHIFT);
vr->mask_lo = -size << PAGE_SHIFT | 0x800;
vr->mask_hi = (-size & size_and_mask) >> (32 - PAGE_SHIFT);
mtrr_wrmsr(MTRRphysBase_MSR(reg), vr->base_lo, vr->base_hi);
mtrr_wrmsr(MTRRphysMask_MSR(reg), vr->mask_lo, vr->mask_hi);
}
post_set();

76
arch/i386/kernel/cpu/mtrr/main.c
View file

@ -332,6 +332,8 @@ int mtrr_add_page(unsigned long base, unsigned long size,
error = -EINVAL;
/* No CPU hotplug when we change MTRR entries */
lock_cpu_hotplug();
/* Search for existing MTRR */
down(&main_lock);
for (i = 0; i < num_var_ranges; ++i) {
@ -372,6 +374,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
error = i;
out:
up(&main_lock);
unlock_cpu_hotplug();
return error;
}
@ -461,6 +464,8 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
return -ENXIO;
max = num_var_ranges;
/* No CPU hotplug when we change MTRR entries */
lock_cpu_hotplug();
down(&main_lock);
if (reg < 0) {
/* Search for existing MTRR */
@ -501,6 +506,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
error = reg;
out:
up(&main_lock);
unlock_cpu_hotplug();
return error;
}
/**
@ -544,21 +550,9 @@ static void __init init_ifs(void)
centaur_init_mtrr();
}
static void __init init_other_cpus(void)
{
if (use_intel())
get_mtrr_state();
/* bring up the other processors */
set_mtrr(~0U,0,0,0);
if (use_intel()) {
finalize_mtrr_state();
mtrr_state_warn();
}
}
/* The suspend/resume methods are only for CPU without MTRR. CPU using generic
* MTRR driver doesn't require this
*/
struct mtrr_value {
mtrr_type ltype;
unsigned long lbase;
@ -611,13 +605,13 @@ static struct sysdev_driver mtrr_sysdev_driver = {
/**
* mtrr_init - initialize mtrrs on the boot CPU
* mtrr_bp_init - initialize mtrrs on the boot CPU
*
* This needs to be called early; before any of the other CPUs are
* initialized (i.e. before smp_init()).
*
*/
static int __init mtrr_init(void)
void __init mtrr_bp_init(void)
{
init_ifs();
@ -674,12 +668,48 @@ static int __init mtrr_init(void)
if (mtrr_if) {
set_num_var_ranges();
init_table();
init_other_cpus();
return sysdev_driver_register(&cpu_sysdev_class,
&mtrr_sysdev_driver);
if (use_intel())
get_mtrr_state();
}
return -ENXIO;
}
subsys_initcall(mtrr_init);
void mtrr_ap_init(void)
{
unsigned long flags;
if (!mtrr_if || !use_intel())
return;
/*
* Ideally we should hold main_lock here to avoid mtrr entries changed,
* but this routine will be called in cpu boot time, holding the lock
* breaks it. This routine is called in two cases: 1.very earily time
* of software resume, when there absolutely isn't mtrr entry changes;
* 2.cpu hotadd time. We let mtrr_add/del_page hold cpuhotplug lock to
* prevent mtrr entry changes
*/
local_irq_save(flags);
mtrr_if->set_all();
local_irq_restore(flags);
}
static int __init mtrr_init_finialize(void)
{
if (!mtrr_if)
return 0;
if (use_intel())
mtrr_state_warn();
else {
/* The CPUs haven't MTRR and seemes not support SMP. They have
* specific drivers, we use a tricky method to support
* suspend/resume for them.
* TBD: is there any system with such CPU which supports
* suspend/resume? if no, we should remove the code.
*/
sysdev_driver_register(&cpu_sysdev_class,
&mtrr_sysdev_driver);
}
return 0;
}
subsys_initcall(mtrr_init_finialize);

1
arch/i386/kernel/cpu/mtrr/mtrr.h
View file

@ -91,7 +91,6 @@ extern struct mtrr_ops * mtrr_if;
extern unsigned int num_var_ranges;
void finalize_mtrr_state(void);
void mtrr_state_warn(void);
char *mtrr_attrib_to_str(int x);
void mtrr_wrmsr(unsigned, unsigned, unsigned);

18
arch/i386/kernel/smpboot.c
View file

@ -68,21 +68,21 @@ EXPORT_SYMBOL(smp_num_siblings);
#endif
/* Package ID of each logical CPU */
int phys_proc_id[NR_CPUS] = {[0 ... NR_CPUS-1] = BAD_APICID};
int phys_proc_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID};
EXPORT_SYMBOL(phys_proc_id);
/* Core ID of each logical CPU */
int cpu_core_id[NR_CPUS] = {[0 ... NR_CPUS-1] = BAD_APICID};
int cpu_core_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID};
EXPORT_SYMBOL(cpu_core_id);
cpumask_t cpu_sibling_map[NR_CPUS];
cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(cpu_sibling_map);
cpumask_t cpu_core_map[NR_CPUS];
cpumask_t cpu_core_map[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(cpu_core_map);
/* bitmap of online cpus */
cpumask_t cpu_online_map;
cpumask_t cpu_online_map __read_mostly;
EXPORT_SYMBOL(cpu_online_map);
cpumask_t cpu_callin_map;
@ -100,7 +100,7 @@ static int __devinitdata tsc_sync_disabled;
struct cpuinfo_x86 cpu_data[NR_CPUS] __cacheline_aligned;
EXPORT_SYMBOL(cpu_data);
u8 x86_cpu_to_apicid[NR_CPUS] =
u8 x86_cpu_to_apicid[NR_CPUS] __read_mostly =
{ [0 ... NR_CPUS-1] = 0xff };
EXPORT_SYMBOL(x86_cpu_to_apicid);
@ -550,10 +550,10 @@ extern struct {
#ifdef CONFIG_NUMA
/* which logical CPUs are on which nodes */
cpumask_t node_2_cpu_mask[MAX_NUMNODES] =
cpumask_t node_2_cpu_mask[MAX_NUMNODES] __read_mostly =
{ [0 ... MAX_NUMNODES-1] = CPU_MASK_NONE };
/* which node each logical CPU is on */
int cpu_2_node[NR_CPUS] = { [0 ... NR_CPUS-1] = 0 };
int cpu_2_node[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
EXPORT_SYMBOL(cpu_2_node);
/* set up a mapping between cpu and node. */
@ -581,7 +581,7 @@ static inline void unmap_cpu_to_node(int cpu)
#endif /* CONFIG_NUMA */
u8 cpu_2_logical_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
u8 cpu_2_logical_apicid[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = BAD_APICID };
static void map_cpu_to_logical_apicid(void)
{

2
arch/i386/kernel/time.c
View file

@ -91,7 +91,7 @@ EXPORT_SYMBOL(rtc_lock);
DEFINE_SPINLOCK(i8253_lock);
EXPORT_SYMBOL(i8253_lock);
struct timer_opts *cur_timer = &timer_none;
struct timer_opts *cur_timer __read_mostly = &timer_none;
/*
* This is a special lock that is owned by the CPU and holds the index

4
arch/i386/kernel/timers/timer_hpet.c
View file

@ -18,7 +18,7 @@
#include "mach_timer.h"
#include <asm/hpet.h>
static unsigned long hpet_usec_quotient; /* convert hpet clks to usec */
static unsigned long __read_mostly hpet_usec_quotient; /* convert hpet clks to usec */
static unsigned long tsc_hpet_quotient; /* convert tsc to hpet clks */
static unsigned long hpet_last; /* hpet counter value at last tick*/
static unsigned long last_tsc_low; /* lsb 32 bits of Time Stamp Counter */
@ -180,7 +180,7 @@ static int __init init_hpet(char* override)
/************************************************************/
/* tsc timer_opts struct */
static struct timer_opts timer_hpet = {
static struct timer_opts timer_hpet __read_mostly = {
.name = "hpet",
.mark_offset = mark_offset_hpet,
.get_offset = get_offset_hpet,

3
arch/i386/kernel/vmlinux.lds.S
View file

@ -57,6 +57,9 @@ SECTIONS
*(.data.cacheline_aligned)
}
/* rarely changed data like cpu maps */
. = ALIGN(32);
.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { *(.data.read_mostly) }
_edata = .; /* End of data section */
. = ALIGN(THREAD_SIZE); /* init_task */

6
arch/i386/mm/ioremap.c
View file

@ -228,7 +228,8 @@ EXPORT_SYMBOL(ioremap_nocache);
void iounmap(volatile void __iomem *addr)
{
struct vm_struct *p;
if ((void __force *) addr <= high_memory)
if ((void __force *)addr <= high_memory)
return;
/*
@ -241,9 +242,10 @@ void iounmap(volatile void __iomem *addr)
return;
write_lock(&vmlist_lock);
p = __remove_vm_area((void *) (PAGE_MASK & (unsigned long __force) addr));
p = __remove_vm_area((void *)(PAGE_MASK & (unsigned long __force)addr));
if (!p) {
printk(KERN_WARNING "iounmap: bad address %p\n", addr);
dump_stack();
goto out_unlock;
}

1
arch/i386/power/cpu.c
View file

@ -137,6 +137,7 @@ void __restore_processor_state(struct saved_context *ctxt)
fix_processor_context();
do_fpu_end();
mtrr_ap_init();
}
void restore_processor_state(void)

55
arch/m32r/kernel/setup_m32700ut.c
View file

@ -3,8 +3,8 @@
*
* Setup routines for Renesas M32700UT Board
*
* Copyright (c) 2002 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Takeo Takahashi
* Copyright (c) 2002-2005 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Takeo Takahashi
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
@ -435,7 +435,7 @@ void __init init_IRQ(void)
icu_data[M32R_IRQ_INT2].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
enable_m32700ut_irq(M32R_IRQ_INT2);
//#if defined(CONFIG_VIDEO_M32R_AR)
#if defined(CONFIG_VIDEO_M32R_AR)
/*
* INT3# is used for AR
*/
@ -445,9 +445,11 @@ void __init init_IRQ(void)
irq_desc[M32R_IRQ_INT3].depth = 1;
icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
disable_m32700ut_irq(M32R_IRQ_INT3);
//#endif /* CONFIG_VIDEO_M32R_AR */
#endif /* CONFIG_VIDEO_M32R_AR */
}
#if defined(CONFIG_SMC91X)
#define LAN_IOSTART 0x300
#define LAN_IOEND 0x320
static struct resource smc91x_resources[] = {
@ -469,10 +471,55 @@ static struct platform_device smc91x_device = {
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
};
#endif
#if defined(CONFIG_FB_S1D13XXX)
#include <video/s1d13xxxfb.h>
#include <asm/s1d13806.h>
static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
.initregs = s1d13xxxfb_initregs,
.initregssize = ARRAY_SIZE(s1d13xxxfb_initregs),
.platform_init_video = NULL,
#ifdef CONFIG_PM
.platform_suspend_video = NULL,
.platform_resume_video = NULL,
#endif
};
static struct resource s1d13xxxfb_resources[] = {
[0] = {
.start = 0x10600000UL,
.end = 0x1073FFFFUL,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x10400000UL,
.end = 0x104001FFUL,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device s1d13xxxfb_device = {
.name = S1D_DEVICENAME,
.id = 0,
.dev = {
.platform_data = &s1d13xxxfb_data,
},
.num_resources = ARRAY_SIZE(s1d13xxxfb_resources),
.resource = s1d13xxxfb_resources,
};
#endif
static int __init platform_init(void)
{
#if defined(CONFIG_SMC91X)
platform_device_register(&smc91x_device);
#endif
#if defined(CONFIG_FB_S1D13XXX)
platform_device_register(&s1d13xxxfb_device);
#endif
return 0;
}
arch_initcall(platform_init);

51
arch/m32r/kernel/setup_mappi.c
View file

@ -3,14 +3,15 @@
*
* Setup routines for Renesas MAPPI Board
*
* Copyright (c) 2001, 2002 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto
* Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto
*/
#include <linux/config.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <asm/system.h>
#include <asm/m32r.h>
@ -158,3 +159,49 @@ void __init init_IRQ(void)
disable_mappi_irq(M32R_IRQ_INT2);
#endif /* CONFIG_M32RPCC */
}
#if defined(CONFIG_FB_S1D13XXX)
#include <video/s1d13xxxfb.h>
#include <asm/s1d13806.h>
static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
.initregs = s1d13xxxfb_initregs,
.initregssize = ARRAY_SIZE(s1d13xxxfb_initregs),
.platform_init_video = NULL,
#ifdef CONFIG_PM
.platform_suspend_video = NULL,
.platform_resume_video = NULL,
#endif
};
static struct resource s1d13xxxfb_resources[] = {
[0] = {
.start = 0x10200000UL,
.end = 0x1033FFFFUL,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x10000000UL,
.end = 0x100001FFUL,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device s1d13xxxfb_device = {
.name = S1D_DEVICENAME,
.id = 0,
.dev = {
.platform_data = &s1d13xxxfb_data,
},
.num_resources = ARRAY_SIZE(s1d13xxxfb_resources),
.resource = s1d13xxxfb_resources,
};
static int __init platform_init(void)
{
platform_device_register(&s1d13xxxfb_device);
return 0;
}
arch_initcall(platform_init);
#endif

4
arch/m32r/kernel/setup_mappi2.c
View file

@ -3,8 +3,8 @@
*
* Setup routines for Renesas MAPPI-II(M3A-ZA36) Board
*
* Copyright (c) 2001, 2002 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Mamoru Sakugawa
* Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Mamoru Sakugawa
*/
#include <linux/config.h>

52
arch/m32r/kernel/setup_mappi3.c
View file

@ -3,8 +3,8 @@
*
* Setup routines for Renesas MAPPI-III(M3A-2170) Board
*
* Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Mamoru Sakugawa
* Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Mamoru Sakugawa
*/
#include <linux/config.h>
@ -178,6 +178,8 @@ void __init init_IRQ(void)
#endif /* CONFIG_M32R_CFC */
}
#if defined(CONFIG_SMC91X)
#define LAN_IOSTART 0x300
#define LAN_IOEND 0x320
static struct resource smc91x_resources[] = {
@ -200,9 +202,55 @@ static struct platform_device smc91x_device = {
.resource = smc91x_resources,
};
#endif
#if defined(CONFIG_FB_S1D13XXX)
#include <video/s1d13xxxfb.h>
#include <asm/s1d13806.h>
static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
.initregs = s1d13xxxfb_initregs,
.initregssize = ARRAY_SIZE(s1d13xxxfb_initregs),
.platform_init_video = NULL,
#ifdef CONFIG_PM
.platform_suspend_video = NULL,
.platform_resume_video = NULL,
#endif
};
static struct resource s1d13xxxfb_resources[] = {
[0] = {
.start = 0x1d600000UL,
.end = 0x1d73FFFFUL,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x1d400000UL,
.end = 0x1d4001FFUL,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device s1d13xxxfb_device = {
.name = S1D_DEVICENAME,
.id = 0,
.dev = {
.platform_data = &s1d13xxxfb_data,
},
.num_resources = ARRAY_SIZE(s1d13xxxfb_resources),
.resource = s1d13xxxfb_resources,
};
#endif
static int __init platform_init(void)
{
#if defined(CONFIG_SMC91X)
platform_device_register(&smc91x_device);
#endif
#if defined(CONFIG_FB_S1D13XXX)
platform_device_register(&s1d13xxxfb_device);
#endif
return 0;
}
arch_initcall(platform_init);

5
arch/m32r/kernel/setup_oaks32r.c
View file

@ -3,8 +3,8 @@
*
* Setup routines for OAKS32R Board
*
* Copyright (c) 2002-2004 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Mamoru Sakugawa
* Copyright (c) 2002-2005 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Mamoru Sakugawa
*/
#include <linux/config.h>
@ -139,5 +139,4 @@ void __init init_IRQ(void)
icu_data[M32R_IRQ_SIO1_S].icucr = 0;
disable_oaks32r_irq(M32R_IRQ_SIO1_S);
#endif /* CONFIG_SERIAL_M32R_SIO */
}

53
arch/m32r/kernel/setup_opsput.c
View file

@ -3,7 +3,7 @@
*
* Setup routines for Renesas OPSPUT Board
*
* Copyright (c) 2002-2004
* Copyright (c) 2002-2005
* Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Takeo Takahashi, Mamoru Sakugawa
*
@ -439,7 +439,7 @@ void __init init_IRQ(void)
icu_data[M32R_IRQ_INT2].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD01;
enable_opsput_irq(M32R_IRQ_INT2);
//#if defined(CONFIG_VIDEO_M32R_AR)
#if defined(CONFIG_VIDEO_M32R_AR)
/*
* INT3# is used for AR
*/
@ -449,9 +449,11 @@ void __init init_IRQ(void)
irq_desc[M32R_IRQ_INT3].depth = 1;
icu_data[M32R_IRQ_INT3].icucr = M32R_ICUCR_IEN|M32R_ICUCR_ISMOD10;
disable_opsput_irq(M32R_IRQ_INT3);
//#endif /* CONFIG_VIDEO_M32R_AR */
#endif /* CONFIG_VIDEO_M32R_AR */
}
#if defined(CONFIG_SMC91X)
#define LAN_IOSTART 0x300
#define LAN_IOEND 0x320
static struct resource smc91x_resources[] = {
@ -473,10 +475,55 @@ static struct platform_device smc91x_device = {
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
};
#endif
#if defined(CONFIG_FB_S1D13XXX)
#include <video/s1d13xxxfb.h>
#include <asm/s1d13806.h>
static struct s1d13xxxfb_pdata s1d13xxxfb_data = {
.initregs = s1d13xxxfb_initregs,
.initregssize = ARRAY_SIZE(s1d13xxxfb_initregs),
.platform_init_video = NULL,
#ifdef CONFIG_PM
.platform_suspend_video = NULL,
.platform_resume_video = NULL,
#endif
};
static struct resource s1d13xxxfb_resources[] = {
[0] = {
.start = 0x10600000UL,
.end = 0x1073FFFFUL,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0x10400000UL,
.end = 0x104001FFUL,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device s1d13xxxfb_device = {
.name = S1D_DEVICENAME,
.id = 0,
.dev = {
.platform_data = &s1d13xxxfb_data,
},
.num_resources = ARRAY_SIZE(s1d13xxxfb_resources),
.resource = s1d13xxxfb_resources,
};
#endif
static int __init platform_init(void)
{
#if defined(CONFIG_SMC91X)
platform_device_register(&smc91x_device);
#endif
#if defined(CONFIG_FB_S1D13XXX)
platform_device_register(&s1d13xxxfb_device);
#endif
return 0;
}
arch_initcall(platform_init);

2
arch/ppc/platforms/pmac_cpufreq.c
View file

@ -452,7 +452,7 @@ static u32 __pmac read_gpio(struct device_node *np)
return offset;
}
static int __pmac pmac_cpufreq_suspend(struct cpufreq_policy *policy, u32 state)
static int __pmac pmac_cpufreq_suspend(struct cpufreq_policy *policy, pm_message_t pmsg)
{
/* Ok, this could be made a bit smarter, but let's be robust for now. We
* always force a speed change to high speed before sleep, to make sure

365
arch/ppc64/kernel/cputable.c
View file

@ -49,160 +49,219 @@ extern void __setup_cpu_be(unsigned long offset, struct cpu_spec* spec);
#endif
struct cpu_spec cpu_specs[] = {
{ /* Power3 */
0xffff0000, 0x00400000, "POWER3 (630)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_IABR | CPU_FTR_PMC8,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power3,
COMMON_PPC64_FW
},
{ /* Power3+ */
0xffff0000, 0x00410000, "POWER3 (630+)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_IABR | CPU_FTR_PMC8,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power3,
COMMON_PPC64_FW
},
{ /* Northstar */
0xffff0000, 0x00330000, "RS64-II (northstar)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_IABR | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power3,
COMMON_PPC64_FW
},
{ /* Pulsar */
0xffff0000, 0x00340000, "RS64-III (pulsar)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_IABR | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power3,
COMMON_PPC64_FW
},
{ /* I-star */
0xffff0000, 0x00360000, "RS64-III (icestar)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_IABR | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power3,
COMMON_PPC64_FW
},
{ /* S-star */
0xffff0000, 0x00370000, "RS64-IV (sstar)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_IABR | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power3,
COMMON_PPC64_FW
},
{ /* Power4 */
0xffff0000, 0x00350000, "POWER4 (gp)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power4,
COMMON_PPC64_FW
},
{ /* Power4+ */
0xffff0000, 0x00380000, "POWER4+ (gq)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power4,
COMMON_PPC64_FW
},
{ /* PPC970 */
0xffff0000, 0x00390000, "PPC970",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
CPU_FTR_CAN_NAP | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
COMMON_USER_PPC64 | PPC_FEATURE_HAS_ALTIVEC_COMP,
128, 128,
__setup_cpu_ppc970,
COMMON_PPC64_FW
},
{ /* PPC970FX */
0xffff0000, 0x003c0000, "PPC970FX",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
CPU_FTR_CAN_NAP | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
COMMON_USER_PPC64 | PPC_FEATURE_HAS_ALTIVEC_COMP,
128, 128,
__setup_cpu_ppc970,
COMMON_PPC64_FW
},
{ /* Power5 */
0xffff0000, 0x003a0000, "POWER5 (gr)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA | CPU_FTR_SMT |
CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE |
CPU_FTR_MMCRA_SIHV,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power4,
COMMON_PPC64_FW
},
{ /* Power5 */
0xffff0000, 0x003b0000, "POWER5 (gs)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA | CPU_FTR_SMT |
CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE |
CPU_FTR_MMCRA_SIHV,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power4,
COMMON_PPC64_FW
},
{ /* BE DD1.x */
0xffff0000, 0x00700000, "Broadband Engine",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
CPU_FTR_SMT,
COMMON_USER_PPC64 | PPC_FEATURE_HAS_ALTIVEC_COMP,
128, 128,
__setup_cpu_be,
COMMON_PPC64_FW
},
{ /* default match */
0x00000000, 0x00000000, "POWER4 (compatible)",
CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2,
COMMON_USER_PPC64,
128, 128,
__setup_cpu_power4,
COMMON_PPC64_FW
}
{ /* Power3 */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00400000,
.cpu_name = "POWER3 (630)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
CPU_FTR_PMC8,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power3+ */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00410000,
.cpu_name = "POWER3 (630+)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
CPU_FTR_PMC8,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Northstar */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00330000,
.cpu_name = "RS64-II (northstar)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
CPU_FTR_PMC8 | CPU_FTR_MMCRA | CPU_FTR_CTRL,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Pulsar */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00340000,
.cpu_name = "RS64-III (pulsar)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
CPU_FTR_PMC8 | CPU_FTR_MMCRA | CPU_FTR_CTRL,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* I-star */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00360000,
.cpu_name = "RS64-III (icestar)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
CPU_FTR_PMC8 | CPU_FTR_MMCRA | CPU_FTR_CTRL,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* S-star */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00370000,
.cpu_name = "RS64-IV (sstar)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_IABR |
CPU_FTR_PMC8 | CPU_FTR_MMCRA | CPU_FTR_CTRL,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power3,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power4 */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00350000,
.cpu_name = "POWER4 (gp)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power4+ */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00380000,
.cpu_name = "POWER4+ (gq)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
},
{ /* PPC970 */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00390000,
.cpu_name = "PPC970",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
CPU_FTR_CAN_NAP | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
.cpu_user_features = COMMON_USER_PPC64 |
PPC_FEATURE_HAS_ALTIVEC_COMP,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_ppc970,
.firmware_features = COMMON_PPC64_FW,
},
{ /* PPC970FX */
.pvr_mask = 0xffff0000,
.pvr_value = 0x003c0000,
.cpu_name = "PPC970FX",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
CPU_FTR_CAN_NAP | CPU_FTR_PMC8 | CPU_FTR_MMCRA,
.cpu_user_features = COMMON_USER_PPC64 |
PPC_FEATURE_HAS_ALTIVEC_COMP,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_ppc970,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power5 */
.pvr_mask = 0xffff0000,
.pvr_value = 0x003a0000,
.cpu_name = "POWER5 (gr)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA | CPU_FTR_SMT |
CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE |
CPU_FTR_MMCRA_SIHV,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
},
{ /* Power5 */
.pvr_mask = 0xffff0000,
.pvr_value = 0x003b0000,
.cpu_name = "POWER5 (gs)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_MMCRA | CPU_FTR_SMT |
CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE |
CPU_FTR_MMCRA_SIHV,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
},
{ /* BE DD1.x */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00700000,
.cpu_name = "Broadband Engine",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP |
CPU_FTR_SMT,
.cpu_user_features = COMMON_USER_PPC64 |
PPC_FEATURE_HAS_ALTIVEC_COMP,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_be,
.firmware_features = COMMON_PPC64_FW,
},
{ /* default match */
.pvr_mask = 0x00000000,
.pvr_value = 0x00000000,
.cpu_name = "POWER4 (compatible)",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
CPU_FTR_PPCAS_ARCH_V2,
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_power4,
.firmware_features = COMMON_PPC64_FW,
}
};
firmware_feature_t firmware_features_table[FIRMWARE_MAX_FEATURES] = {
{FW_FEATURE_PFT, "hcall-pft"},
{FW_FEATURE_TCE, "hcall-tce"},
{FW_FEATURE_SPRG0, "hcall-sprg0"},
{FW_FEATURE_DABR, "hcall-dabr"},
{FW_FEATURE_COPY, "hcall-copy"},
{FW_FEATURE_ASR, "hcall-asr"},
{FW_FEATURE_DEBUG, "hcall-debug"},
{FW_FEATURE_PERF, "hcall-perf"},
{FW_FEATURE_DUMP, "hcall-dump"},
{FW_FEATURE_INTERRUPT, "hcall-interrupt"},
{FW_FEATURE_MIGRATE, "hcall-migrate"},
{FW_FEATURE_PERFMON, "hcall-perfmon"},
{FW_FEATURE_CRQ, "hcall-crq"},
{FW_FEATURE_VIO, "hcall-vio"},
{FW_FEATURE_RDMA, "hcall-rdma"},
{FW_FEATURE_LLAN, "hcall-lLAN"},
{FW_FEATURE_BULK, "hcall-bulk"},
{FW_FEATURE_XDABR, "hcall-xdabr"},
{FW_FEATURE_MULTITCE, "hcall-multi-tce"},
{FW_FEATURE_SPLPAR, "hcall-splpar"},
{FW_FEATURE_PFT, "hcall-pft"},
{FW_FEATURE_TCE, "hcall-tce"},
{FW_FEATURE_SPRG0, "hcall-sprg0"},
{FW_FEATURE_DABR, "hcall-dabr"},
{FW_FEATURE_COPY, "hcall-copy"},
{FW_FEATURE_ASR, "hcall-asr"},
{FW_FEATURE_DEBUG, "hcall-debug"},
{FW_FEATURE_PERF, "hcall-perf"},
{FW_FEATURE_DUMP, "hcall-dump"},
{FW_FEATURE_INTERRUPT, "hcall-interrupt"},
{FW_FEATURE_MIGRATE, "hcall-migrate"},
{FW_FEATURE_PERFMON, "hcall-perfmon"},
{FW_FEATURE_CRQ, "hcall-crq"},
{FW_FEATURE_VIO, "hcall-vio"},
{FW_FEATURE_RDMA, "hcall-rdma"},
{FW_FEATURE_LLAN, "hcall-lLAN"},
{FW_FEATURE_BULK, "hcall-bulk"},
{FW_FEATURE_XDABR, "hcall-xdabr"},
{FW_FEATURE_MULTITCE, "hcall-multi-tce"},
{FW_FEATURE_SPLPAR, "hcall-splpar"},
};

10
arch/ppc64/kernel/head.S
View file

@ -308,6 +308,7 @@ exception_marker:
label##_pSeries: \
HMT_MEDIUM; \
mtspr SPRG1,r13; /* save r13 */ \
RUNLATCH_ON(r13); \
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common)
#define STD_EXCEPTION_ISERIES(n, label, area) \
@ -315,6 +316,7 @@ label##_pSeries: \
label##_iSeries: \
HMT_MEDIUM; \
mtspr SPRG1,r13; /* save r13 */ \
RUNLATCH_ON(r13); \
EXCEPTION_PROLOG_ISERIES_1(area); \
EXCEPTION_PROLOG_ISERIES_2; \
b label##_common
@ -324,6 +326,7 @@ label##_iSeries: \
label##_iSeries: \
HMT_MEDIUM; \
mtspr SPRG1,r13; /* save r13 */ \
RUNLATCH_ON(r13); \
EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN); \
lbz r10,PACAPROCENABLED(r13); \
cmpwi 0,r10,0; \
@ -393,6 +396,7 @@ __start_interrupts:
_machine_check_pSeries:
HMT_MEDIUM
mtspr SPRG1,r13 /* save r13 */
RUNLATCH_ON(r13)
EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
. = 0x300
@ -419,6 +423,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
data_access_slb_pSeries:
HMT_MEDIUM
mtspr SPRG1,r13
RUNLATCH_ON(r13)
mfspr r13,SPRG3 /* get paca address into r13 */
std r9,PACA_EXSLB+EX_R9(r13) /* save r9 - r12 */
std r10,PACA_EXSLB+EX_R10(r13)
@ -439,6 +444,7 @@ data_access_slb_pSeries:
instruction_access_slb_pSeries:
HMT_MEDIUM
mtspr SPRG1,r13
RUNLATCH_ON(r13)
mfspr r13,SPRG3 /* get paca address into r13 */
std r9,PACA_EXSLB+EX_R9(r13) /* save r9 - r12 */
std r10,PACA_EXSLB+EX_R10(r13)
@ -464,6 +470,7 @@ instruction_access_slb_pSeries:
.globl system_call_pSeries
system_call_pSeries:
HMT_MEDIUM
RUNLATCH_ON(r9)
mr r9,r13
mfmsr r10
mfspr r13,SPRG3
@ -707,11 +714,13 @@ fwnmi_data_area:
system_reset_fwnmi:
HMT_MEDIUM
mtspr SPRG1,r13 /* save r13 */
RUNLATCH_ON(r13)
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common)
.globl machine_check_fwnmi
machine_check_fwnmi:
HMT_MEDIUM
mtspr SPRG1,r13 /* save r13 */
RUNLATCH_ON(r13)
EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
/*
@ -848,6 +857,7 @@ unrecov_fer:
.align 7
.globl data_access_common
data_access_common:
RUNLATCH_ON(r10) /* It wont fit in the 0x300 handler */
mfspr r10,DAR
std r10,PACA_EXGEN+EX_DAR(r13)
mfspr r10,DSISR

51
arch/ppc64/kernel/hvconsole.c
View file

@ -27,7 +27,6 @@
#include <linux/module.h>
#include <asm/hvcall.h>
#include <asm/hvconsole.h>
#include <asm/prom.h>
/**
* hvc_get_chars - retrieve characters from firmware for denoted vterm adatper
@ -42,29 +41,14 @@ int hvc_get_chars(uint32_t vtermno, char *buf, int count)
unsigned long got;
if (plpar_hcall(H_GET_TERM_CHAR, vtermno, 0, 0, 0, &got,
(unsigned long *)buf, (unsigned long *)buf+1) == H_Success) {
/*
* Work around a HV bug where it gives us a null
* after every \r. -- paulus
*/
if (got > 0) {
int i;
for (i = 1; i < got; ++i) {
if (buf[i] == 0 && buf[i-1] == '\r') {
--got;
if (i < got)
memmove(&buf[i], &buf[i+1],
got - i);
}
}
}
(unsigned long *)buf, (unsigned long *)buf+1) == H_Success)
return got;
}
return 0;
}
EXPORT_SYMBOL(hvc_get_chars);
/**
* hvc_put_chars: send characters to firmware for denoted vterm adapter
* @vtermno: The vtermno or unit_address of the adapter from which the data
@ -88,34 +72,3 @@ int hvc_put_chars(uint32_t vtermno, const char *buf, int count)
}
EXPORT_SYMBOL(hvc_put_chars);
/*
* We hope/assume that the first vty found corresponds to the first console
* device.
*/
int hvc_find_vtys(void)
{
struct device_node *vty;
int num_found = 0;
for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL;
vty = of_find_node_by_name(vty, "vty")) {
uint32_t *vtermno;
/* We have statically defined space for only a certain number of
* console adapters. */
if (num_found >= MAX_NR_HVC_CONSOLES)
break;
vtermno = (uint32_t *)get_property(vty, "reg", NULL);
if (!vtermno)
continue;
if (device_is_compatible(vty, "hvterm1")) {
hvc_instantiate(*vtermno, num_found);
++num_found;
}
}
return num_found;
}

94
arch/ppc64/kernel/iSeries_setup.c
View file

@ -834,6 +834,92 @@ static int __init iSeries_src_init(void)
late_initcall(iSeries_src_init);
static inline void process_iSeries_events(void)
{
asm volatile ("li 0,0x5555; sc" : : : "r0", "r3");
}
static void yield_shared_processor(void)
{
unsigned long tb;
HvCall_setEnabledInterrupts(HvCall_MaskIPI |
HvCall_MaskLpEvent |
HvCall_MaskLpProd |
HvCall_MaskTimeout);
tb = get_tb();
/* Compute future tb value when yield should expire */
HvCall_yieldProcessor(HvCall_YieldTimed, tb+tb_ticks_per_jiffy);
/*
* The decrementer stops during the yield. Force a fake decrementer
* here and let the timer_interrupt code sort out the actual time.
*/
get_paca()->lppaca.int_dword.fields.decr_int = 1;
process_iSeries_events();
}
static int iseries_shared_idle(void)
{
while (1) {
while (!need_resched() && !hvlpevent_is_pending()) {
local_irq_disable();
ppc64_runlatch_off();
/* Recheck with irqs off */
if (!need_resched() && !hvlpevent_is_pending())
yield_shared_processor();
HMT_medium();
local_irq_enable();
}
ppc64_runlatch_on();
if (hvlpevent_is_pending())
process_iSeries_events();
schedule();
}
return 0;
}
static int iseries_dedicated_idle(void)
{
long oldval;
while (1) {
oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED);
if (!oldval) {
set_thread_flag(TIF_POLLING_NRFLAG);
while (!need_resched()) {
ppc64_runlatch_off();
HMT_low();
if (hvlpevent_is_pending()) {
HMT_medium();
ppc64_runlatch_on();
process_iSeries_events();
}
}
HMT_medium();
clear_thread_flag(TIF_POLLING_NRFLAG);
} else {
set_need_resched();
}
ppc64_runlatch_on();
schedule();
}
return 0;
}
#ifndef CONFIG_PCI
void __init iSeries_init_IRQ(void) { }
#endif
@ -859,5 +945,13 @@ void __init iSeries_early_setup(void)
ppc_md.get_rtc_time = iSeries_get_rtc_time;
ppc_md.calibrate_decr = iSeries_calibrate_decr;
ppc_md.progress = iSeries_progress;
if (get_paca()->lppaca.shared_proc) {
ppc_md.idle_loop = iseries_shared_idle;
printk(KERN_INFO "Using shared processor idle loop\n");
} else {
ppc_md.idle_loop = iseries_dedicated_idle;
printk(KERN_INFO "Using dedicated idle loop\n");
}
}

283
arch/ppc64/kernel/idle.c
View file

@ -20,109 +20,18 @@
#include <linux/kernel.h>
#include <linux/smp.h>
#include <linux/cpu.h>
#include <linux/module.h>
#include <linux/sysctl.h>
#include <linux/smp.h>
#include <asm/system.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/cputable.h>
#include <asm/time.h>
#include <asm/iSeries/HvCall.h>
#include <asm/iSeries/ItLpQueue.h>
#include <asm/plpar_wrappers.h>
#include <asm/systemcfg.h>
#include <asm/machdep.h>
extern void power4_idle(void);
static int (*idle_loop)(void);
#ifdef CONFIG_PPC_ISERIES
static unsigned long maxYieldTime = 0;
static unsigned long minYieldTime = 0xffffffffffffffffUL;
static inline void process_iSeries_events(void)
{
asm volatile ("li 0,0x5555; sc" : : : "r0", "r3");
}
static void yield_shared_processor(void)
{
unsigned long tb;
unsigned long yieldTime;
HvCall_setEnabledInterrupts(HvCall_MaskIPI |
HvCall_MaskLpEvent |
HvCall_MaskLpProd |
HvCall_MaskTimeout);
tb = get_tb();
/* Compute future tb value when yield should expire */
HvCall_yieldProcessor(HvCall_YieldTimed, tb+tb_ticks_per_jiffy);
yieldTime = get_tb() - tb;
if (yieldTime > maxYieldTime)
maxYieldTime = yieldTime;
if (yieldTime < minYieldTime)
minYieldTime = yieldTime;
/*
* The decrementer stops during the yield. Force a fake decrementer
* here and let the timer_interrupt code sort out the actual time.
*/
get_paca()->lppaca.int_dword.fields.decr_int = 1;
process_iSeries_events();
}
static int iSeries_idle(void)
{
struct paca_struct *lpaca;
long oldval;
/* ensure iSeries run light will be out when idle */
ppc64_runlatch_off();
lpaca = get_paca();
while (1) {
if (lpaca->lppaca.shared_proc) {
if (hvlpevent_is_pending())
process_iSeries_events();
if (!need_resched())
yield_shared_processor();
} else {
oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED);
if (!oldval) {
set_thread_flag(TIF_POLLING_NRFLAG);
while (!need_resched()) {
HMT_medium();
if (hvlpevent_is_pending())
process_iSeries_events();
HMT_low();
}
HMT_medium();
clear_thread_flag(TIF_POLLING_NRFLAG);
} else {
set_need_resched();
}
}
ppc64_runlatch_on();
schedule();
ppc64_runlatch_off();
}
return 0;
}
#else
static int default_idle(void)
int default_idle(void)
{
long oldval;
unsigned int cpu = smp_processor_id();
@ -134,7 +43,8 @@ static int default_idle(void)
set_thread_flag(TIF_POLLING_NRFLAG);
while (!need_resched() && !cpu_is_offline(cpu)) {
barrier();
ppc64_runlatch_off();
/*
* Go into low thread priority and possibly
* low power mode.
@ -149,6 +59,7 @@ static int default_idle(void)
set_need_resched();
}
ppc64_runlatch_on();
schedule();
if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
cpu_die();
@ -157,127 +68,19 @@ static int default_idle(void)
return 0;
}
#ifdef CONFIG_PPC_PSERIES
DECLARE_PER_CPU(unsigned long, smt_snooze_delay);
int dedicated_idle(void)
int native_idle(void)
{
long oldval;
struct paca_struct *lpaca = get_paca(), *ppaca;
unsigned long start_snooze;
unsigned long *smt_snooze_delay = &__get_cpu_var(smt_snooze_delay);
unsigned int cpu = smp_processor_id();
ppaca = &paca[cpu ^ 1];
while (1) {
/*
* Indicate to the HV that we are idle. Now would be
* a good time to find other work to dispatch.
*/
lpaca->lppaca.idle = 1;
ppc64_runlatch_off();
oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED);
if (!oldval) {
set_thread_flag(TIF_POLLING_NRFLAG);
start_snooze = __get_tb() +
*smt_snooze_delay * tb_ticks_per_usec;
while (!need_resched() && !cpu_is_offline(cpu)) {
/*
* Go into low thread priority and possibly
* low power mode.
*/
HMT_low();
HMT_very_low();
if (!need_resched())
power4_idle();
if (*smt_snooze_delay == 0 ||
__get_tb() < start_snooze)
continue;
HMT_medium();
if (!(ppaca->lppaca.idle)) {
local_irq_disable();
/*
* We are about to sleep the thread
* and so wont be polling any
* more.
*/
clear_thread_flag(TIF_POLLING_NRFLAG);
/*
* SMT dynamic mode. Cede will result
* in this thread going dormant, if the
* partner thread is still doing work.
* Thread wakes up if partner goes idle,
* an interrupt is presented, or a prod
* occurs. Returning from the cede
* enables external interrupts.
*/
if (!need_resched())
cede_processor();
else
local_irq_enable();
} else {
/*
* Give the HV an opportunity at the
* processor, since we are not doing
* any work.
*/
poll_pending();
}
}
clear_thread_flag(TIF_POLLING_NRFLAG);
} else {
set_need_resched();
if (need_resched()) {
ppc64_runlatch_on();
schedule();
}
HMT_medium();
lpaca->lppaca.idle = 0;
schedule();
if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
cpu_die();
}
return 0;
}
static int shared_idle(void)
{
struct paca_struct *lpaca = get_paca();
unsigned int cpu = smp_processor_id();
while (1) {
/*
* Indicate to the HV that we are idle. Now would be
* a good time to find other work to dispatch.
*/
lpaca->lppaca.idle = 1;
while (!need_resched() && !cpu_is_offline(cpu)) {
local_irq_disable();
/*
* Yield the processor to the hypervisor. We return if
* an external interrupt occurs (which are driven prior
* to returning here) or if a prod occurs from another
* processor. When returning here, external interrupts
* are enabled.
*
* Check need_resched() again with interrupts disabled
* to avoid a race.
*/
if (!need_resched())
cede_processor();
else
local_irq_enable();
}
HMT_medium();
lpaca->lppaca.idle = 0;
schedule();
if (cpu_is_offline(smp_processor_id()) &&
system_state == SYSTEM_RUNNING)
cpu_die();
@ -286,29 +89,10 @@ static int shared_idle(void)
return 0;
}
#endif /* CONFIG_PPC_PSERIES */
static int native_idle(void)
{
while(1) {
/* check CPU type here */
if (!need_resched())
power4_idle();
if (need_resched())
schedule();
if (cpu_is_offline(raw_smp_processor_id()) &&
system_state == SYSTEM_RUNNING)
cpu_die();
}
return 0;
}
#endif /* CONFIG_PPC_ISERIES */
void cpu_idle(void)
{
idle_loop();
BUG_ON(NULL == ppc_md.idle_loop);
ppc_md.idle_loop();
}
int powersave_nap;
@ -342,42 +126,3 @@ register_powersave_nap_sysctl(void)
}
__initcall(register_powersave_nap_sysctl);
#endif
int idle_setup(void)
{
/*
* Move that junk to each platform specific file, eventually define
* a pSeries_idle for shared processor stuff
*/
#ifdef CONFIG_PPC_ISERIES
idle_loop = iSeries_idle;
return 1;
#else
idle_loop = default_idle;
#endif
#ifdef CONFIG_PPC_PSERIES
if (systemcfg->platform & PLATFORM_PSERIES) {
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
if (get_paca()->lppaca.shared_proc) {
printk(KERN_INFO "Using shared processor idle loop\n");
idle_loop = shared_idle;
} else {
printk(KERN_INFO "Using dedicated idle loop\n");
idle_loop = dedicated_idle;
}
} else {
printk(KERN_INFO "Using default idle loop\n");
idle_loop = default_idle;
}
}
#endif /* CONFIG_PPC_PSERIES */
#ifndef CONFIG_PPC_ISERIES
if (systemcfg->platform == PLATFORM_POWERMAC ||
systemcfg->platform == PLATFORM_MAPLE) {
printk(KERN_INFO "Using native/NAP idle loop\n");
idle_loop = native_idle;
}
#endif /* CONFIG_PPC_ISERIES */
return 1;
}

3
arch/ppc64/kernel/maple_setup.c
View file

@ -177,6 +177,8 @@ void __init maple_setup_arch(void)
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
printk(KERN_INFO "Using native/NAP idle loop\n");
}
/*
@ -297,4 +299,5 @@ struct machdep_calls __initdata maple_md = {
.get_rtc_time = maple_get_rtc_time,
.calibrate_decr = generic_calibrate_decr,
.progress = maple_progress,
.idle_loop = native_idle,
};

6
arch/ppc64/kernel/misc.S
View file

@ -1124,9 +1124,11 @@ _GLOBAL(sys_call_table32)
.llong .compat_sys_mq_getsetattr
.llong .compat_sys_kexec_load
.llong .sys32_add_key
.llong .sys32_request_key
.llong .sys32_request_key /* 270 */
.llong .compat_sys_keyctl
.llong .compat_sys_waitid
.llong .sys32_ioprio_set
.llong .sys32_ioprio_get
.balign 8
_GLOBAL(sys_call_table)
@ -1403,3 +1405,5 @@ _GLOBAL(sys_call_table)
.llong .sys_request_key /* 270 */
.llong .sys_keyctl
.llong .sys_waitid
.llong .sys_ioprio_set
.llong .sys_ioprio_get

156
arch/ppc64/kernel/pSeries_setup.c
View file

@ -19,6 +19,7 @@
#undef DEBUG
#include <linux/config.h>
#include <linux/cpu.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
@ -82,6 +83,9 @@ int fwnmi_active; /* TRUE if an FWNMI handler is present */
extern void pSeries_system_reset_exception(struct pt_regs *regs);
extern int pSeries_machine_check_exception(struct pt_regs *regs);
static int pseries_shared_idle(void);
static int pseries_dedicated_idle(void);
static volatile void __iomem * chrp_int_ack_special;
struct mpic *pSeries_mpic;
@ -229,6 +233,20 @@ static void __init pSeries_setup_arch(void)
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR)
vpa_init(boot_cpuid);
/* Choose an idle loop */
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
if (get_paca()->lppaca.shared_proc) {
printk(KERN_INFO "Using shared processor idle loop\n");
ppc_md.idle_loop = pseries_shared_idle;
} else {
printk(KERN_INFO "Using dedicated idle loop\n");
ppc_md.idle_loop = pseries_dedicated_idle;
}
} else {
printk(KERN_INFO "Using default idle loop\n");
ppc_md.idle_loop = default_idle;
}
}
static int __init pSeries_init_panel(void)
@ -418,6 +436,144 @@ static int __init pSeries_probe(int platform)
return 1;
}
DECLARE_PER_CPU(unsigned long, smt_snooze_delay);
static inline void dedicated_idle_sleep(unsigned int cpu)
{
struct paca_struct *ppaca = &paca[cpu ^ 1];
/* Only sleep if the other thread is not idle */
if (!(ppaca->lppaca.idle)) {
local_irq_disable();
/*
* We are about to sleep the thread and so wont be polling any
* more.
*/
clear_thread_flag(TIF_POLLING_NRFLAG);
/*
* SMT dynamic mode. Cede will result in this thread going
* dormant, if the partner thread is still doing work. Thread
* wakes up if partner goes idle, an interrupt is presented, or
* a prod occurs. Returning from the cede enables external
* interrupts.
*/
if (!need_resched())
cede_processor();
else
local_irq_enable();
} else {
/*
* Give the HV an opportunity at the processor, since we are
* not doing any work.
*/
poll_pending();
}
}
static int pseries_dedicated_idle(void)
{
long oldval;
struct paca_struct *lpaca = get_paca();
unsigned int cpu = smp_processor_id();
unsigned long start_snooze;
unsigned long *smt_snooze_delay = &__get_cpu_var(smt_snooze_delay);
while (1) {
/*
* Indicate to the HV that we are idle. Now would be
* a good time to find other work to dispatch.
*/
lpaca->lppaca.idle = 1;
oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED);
if (!oldval) {
set_thread_flag(TIF_POLLING_NRFLAG);
start_snooze = __get_tb() +
*smt_snooze_delay * tb_ticks_per_usec;
while (!need_resched() && !cpu_is_offline(cpu)) {
ppc64_runlatch_off();
/*
* Go into low thread priority and possibly
* low power mode.
*/
HMT_low();
HMT_very_low();
if (*smt_snooze_delay != 0 &&
__get_tb() > start_snooze) {
HMT_medium();
dedicated_idle_sleep(cpu);
}
}
HMT_medium();
clear_thread_flag(TIF_POLLING_NRFLAG);
} else {
set_need_resched();
}
lpaca->lppaca.idle = 0;
ppc64_runlatch_on();
schedule();
if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
cpu_die();
}
}
static int pseries_shared_idle(void)
{
struct paca_struct *lpaca = get_paca();
unsigned int cpu = smp_processor_id();
while (1) {
/*
* Indicate to the HV that we are idle. Now would be
* a good time to find other work to dispatch.
*/
lpaca->lppaca.idle = 1;
while (!need_resched() && !cpu_is_offline(cpu)) {
local_irq_disable();
ppc64_runlatch_off();
/*
* Yield the processor to the hypervisor. We return if
* an external interrupt occurs (which are driven prior
* to returning here) or if a prod occurs from another
* processor. When returning here, external interrupts
* are enabled.
*
* Check need_resched() again with interrupts disabled
* to avoid a race.
*/
if (!need_resched())
cede_processor();
else
local_irq_enable();
HMT_medium();
}
lpaca->lppaca.idle = 0;
ppc64_runlatch_on();
schedule();
if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
cpu_die();
}
return 0;
}
struct machdep_calls __initdata pSeries_md = {
.probe = pSeries_probe,
.setup_arch = pSeries_setup_arch,

5
arch/ppc64/kernel/pmac_setup.c
View file

@ -186,6 +186,8 @@ void __init pmac_setup_arch(void)
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
printk(KERN_INFO "Using native/NAP idle loop\n");
}
#ifdef CONFIG_SCSI
@ -507,5 +509,6 @@ struct machdep_calls __initdata pmac_md = {
.calibrate_decr = pmac_calibrate_decr,
.feature_call = pmac_do_feature_call,
.progress = pmac_progress,
.check_legacy_ioport = pmac_check_legacy_ioport
.check_legacy_ioport = pmac_check_legacy_ioport,
.idle_loop = native_idle,
};

8
arch/ppc64/kernel/setup.c
View file

@ -96,7 +96,6 @@ extern void udbg_init_maple_realmode(void);
extern unsigned long klimit;
extern void mm_init_ppc64(void);
extern int idle_setup(void);
extern void stab_initialize(unsigned long stab);
extern void htab_initialize(void);
extern void early_init_devtree(void *flat_dt);
@ -1081,8 +1080,11 @@ void __init setup_arch(char **cmdline_p)
ppc_md.setup_arch();
/* Select the correct idle loop for the platform. */
idle_setup();
/* Use the default idle loop if the platform hasn't provided one. */
if (NULL == ppc_md.idle_loop) {
ppc_md.idle_loop = default_idle;
printk(KERN_INFO "Using default idle loop\n");
}
paging_init();
ppc64_boot_msg(0x15, "Setup Done");

54
arch/ppc64/kernel/sys_ppc32.c
View file

@ -30,47 +30,26 @@
#include <linux/sem.h>
#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/slab.h>
#include <linux/uio.h>
#include <linux/aio.h>
#include <linux/nfs_fs.h>
#include <linux/module.h>
#include <linux/sunrpc/svc.h>
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/cache.h>
#include <linux/nfsd/xdr.h>
#include <linux/nfsd/syscall.h>
#include <linux/poll.h>
#include <linux/personality.h>
#include <linux/stat.h>
#include <linux/filter.h>
#include <linux/highmem.h>
#include <linux/highuid.h>
#include <linux/mman.h>
#include <linux/ipv6.h>
#include <linux/in.h>
#include <linux/icmpv6.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
#include <linux/sysctl.h>
#include <linux/binfmts.h>
#include <linux/dnotify.h>
#include <linux/security.h>
#include <linux/compat.h>
#include <linux/ptrace.h>
#include <linux/aio_abi.h>
#include <linux/elf.h>
#include <net/scm.h>
#include <net/sock.h>
#include <asm/ptrace.h>
#include <asm/types.h>
#include <asm/ipc.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include <asm/semaphore.h>
#include <asm/ppcdebug.h>
#include <asm/time.h>
#include <asm/mmu_context.h>
#include <asm/systemcfg.h>
@ -350,8 +329,6 @@ asmlinkage long sys32_adjtimex(struct timex32 __user *utp)
return ret;
}
/* These are here just in case some old sparc32 binary calls it. */
asmlinkage long sys32_pause(void)
{
current->state = TASK_INTERRUPTIBLE;
@ -360,8 +337,6 @@ asmlinkage long sys32_pause(void)
return -ERESTARTNOHAND;
}
static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
{
long usec;
@ -847,16 +822,6 @@ asmlinkage long sys32_getpgid(u32 pid)
}
/* Note: it is necessary to treat which and who as unsigned ints,
* with the corresponding cast to a signed int to insure that the
* proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
* and the register representation of a signed int (msr in 64-bit mode) is performed.
*/
asmlinkage long sys32_getpriority(u32 which, u32 who)
{
return sys_getpriority((int)which, (int)who);
}
/* Note: it is necessary to treat pid as an unsigned int,
* with the corresponding cast to a signed int to insure that the
@ -1048,6 +1013,11 @@ asmlinkage long sys32_setpgid(u32 pid, u32 pgid)
return sys_setpgid((int)pid, (int)pgid);
}
long sys32_getpriority(u32 which, u32 who)
{
/* sign extend which and who */
return sys_getpriority((int)which, (int)who);
}
long sys32_setpriority(u32 which, u32 who, u32 niceval)
{
@ -1055,6 +1025,18 @@ long sys32_setpriority(u32 which, u32 who, u32 niceval)
return sys_setpriority((int)which, (int)who, (int)niceval);
}
long sys32_ioprio_get(u32 which, u32 who)
{
/* sign extend which and who */
return sys_ioprio_get((int)which, (int)who);
}
long sys32_ioprio_set(u32 which, u32 who, u32 ioprio)
{
/* sign extend which, who and ioprio */
return sys_ioprio_set((int)which, (int)who, (int)ioprio);
}
/* Note: it is necessary to treat newmask as an unsigned int,
* with the corresponding cast to a signed int to insure that the
* proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
@ -1273,8 +1255,6 @@ long ppc32_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low,
(u64)len_high << 32 | len_low, advice);
}
extern asmlinkage long sys_timer_create(clockid_t, sigevent_t __user *, timer_t __user *);
long ppc32_timer_create(clockid_t clock,
struct compat_sigevent __user *ev32,
timer_t __user *timer_id)

14
arch/ppc64/kernel/sysfs.c
View file

@ -112,7 +112,6 @@ void ppc64_enable_pmcs(void)
unsigned long hid0;
#ifdef CONFIG_PPC_PSERIES
unsigned long set, reset;
int ret;
#endif /* CONFIG_PPC_PSERIES */
/* Only need to enable them once */
@ -145,11 +144,7 @@ void ppc64_enable_pmcs(void)
case PLATFORM_PSERIES_LPAR:
set = 1UL << 63;
reset = 0;
ret = plpar_hcall_norets(H_PERFMON, set, reset);
if (ret)
printk(KERN_ERR "H_PERFMON call on cpu %u "
"returned %d\n",
smp_processor_id(), ret);
plpar_hcall_norets(H_PERFMON, set, reset);
break;
#endif /* CONFIG_PPC_PSERIES */
@ -161,13 +156,6 @@ void ppc64_enable_pmcs(void)
/* instruct hypervisor to maintain PMCs */
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR)
get_paca()->lppaca.pmcregs_in_use = 1;
/*
* On SMT machines we have to set the run latch in the ctrl register
* in order to make PMC6 spin.
*/
if (cpu_has_feature(CPU_FTR_SMT))
ppc64_runlatch_on();
#endif /* CONFIG_PPC_PSERIES */
}

4
arch/ppc64/kernel/vdso32/vdso32.lds.S
View file

@ -40,9 +40,9 @@ SECTIONS
.gcc_except_table : { *(.gcc_except_table) }
.fixup : { *(.fixup) }
.got ALIGN(4) : { *(.got.plt) *(.got) }
.dynamic : { *(.dynamic) } :text :dynamic
.got : { *(.got) }
.plt : { *(.plt) }
_end = .;
__end = .;

6
arch/um/Kconfig
View file

@ -128,7 +128,6 @@ config HOSTFS
config HPPFS
tristate "HoneyPot ProcFS (EXPERIMENTAL)"
depends on BROKEN
help
hppfs (HoneyPot ProcFS) is a filesystem which allows UML /proc
entries to be overridden, removed, or fabricated from the host.
@ -141,8 +140,9 @@ config HPPFS
You only need this if you are setting up a UML honeypot. Otherwise,
it is safe to say 'N' here.
If you are actively using it, please ask for it to be fixed. In this
moment, it does not work on 2.6 (it works somehow on 2.4).
If you are actively using it, please report any problems, since it's
getting fixed. In this moment, it is experimental on 2.6 (it works on
2.4).
config MCONSOLE
bool "Management console"

12
arch/um/Kconfig_i386
View file

@ -19,6 +19,18 @@ config 3_LEVEL_PGTABLES
memory. All the memory that can't be mapped directly will be treated
as high memory.
config STUB_CODE
hex
default 0xbfffe000
config STUB_DATA
hex
default 0xbffff000
config STUB_START
hex
default STUB_CODE
config ARCH_HAS_SC_SIGNALS
bool
default y

12
arch/um/Kconfig_x86_64
View file

@ -14,6 +14,18 @@ config 3_LEVEL_PGTABLES
bool
default y
config STUB_CODE
hex
default 0x7fbfffe000
config STUB_DATA
hex
default 0x7fbffff000
config STUB_START
hex
default STUB_CODE
config ARCH_HAS_SC_SIGNALS
bool
default n

2
arch/um/Makefile-i386
View file

@ -8,7 +8,7 @@ ifeq ($(CONFIG_MODE_SKAS),y)
endif
endif
CFLAGS += -U__$(SUBARCH)__ -U$(SUBARCH)
CFLAGS += -U__$(SUBARCH)__ -U$(SUBARCH) $(STUB_CFLAGS)
ARCH_USER_CFLAGS :=
ifneq ($(CONFIG_GPROF),y)

2
arch/um/Makefile-x86_64
View file

@ -4,7 +4,7 @@
SUBARCH_LIBS := arch/um/sys-x86_64/
START := 0x60000000
CFLAGS += -U__$(SUBARCH)__ -fno-builtin
CFLAGS += -U__$(SUBARCH)__ -fno-builtin $(STUB_CFLAGS)
ARCH_USER_CFLAGS := -D__x86_64__
ELF_ARCH := i386:x86-64

58
arch/um/defconfig
View file

@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.12-rc3-skas3-v9-pre2
# Sun Apr 24 19:46:10 2005
# Linux kernel version: 2.6.12-rc6-mm1
# Tue Jun 14 18:22:21 2005
#
CONFIG_GENERIC_HARDIRQS=y
CONFIG_UML=y
@ -13,23 +13,32 @@ CONFIG_GENERIC_CALIBRATE_DELAY=y
#
# UML-specific options
#
CONFIG_MODE_TT=y
# CONFIG_MODE_TT is not set
# CONFIG_STATIC_LINK is not set
CONFIG_MODE_SKAS=y
CONFIG_UML_X86=y
# CONFIG_64BIT is not set
CONFIG_TOP_ADDR=0xc0000000
# CONFIG_3_LEVEL_PGTABLES is not set
CONFIG_STUB_CODE=0xbfffe000
CONFIG_STUB_DATA=0xbffff000
CONFIG_STUB_START=0xbfffe000
CONFIG_ARCH_HAS_SC_SIGNALS=y
CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA=y
CONFIG_LD_SCRIPT_STATIC=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_LD_SCRIPT_DYN=y
CONFIG_NET=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=m
CONFIG_HOSTFS=y
# CONFIG_HOSTFS is not set
CONFIG_MCONSOLE=y
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_HOST_2G_2G is not set
# CONFIG_SMP is not set
CONFIG_NEST_LEVEL=0
CONFIG_KERNEL_HALF_GIGS=1
# CONFIG_HIGHMEM is not set
@ -63,6 +72,8 @@ CONFIG_IKCONFIG_PROC=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
CONFIG_KALLSYMS_EXTRA_PASS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
@ -81,6 +92,7 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
@ -115,6 +127,7 @@ CONFIG_UML_SOUND=m
CONFIG_SOUND=m
CONFIG_HOSTAUDIO=m
CONFIG_UML_RANDOM=y
# CONFIG_MMAPPER is not set
#
# Block devices
@ -176,6 +189,17 @@ CONFIG_INET=y
# CONFIG_INET_TUNNEL is not set
CONFIG_IP_TCPDIAG=y
# CONFIG_IP_TCPDIAG_IPV6 is not set
#
# TCP congestion control
#
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_WESTWOOD=y
CONFIG_TCP_CONG_HTCP=y
# CONFIG_TCP_CONG_HSTCP is not set
# CONFIG_TCP_CONG_HYBLA is not set
# CONFIG_TCP_CONG_VEGAS is not set
# CONFIG_TCP_CONG_SCALABLE is not set
# CONFIG_IPV6 is not set
# CONFIG_NETFILTER is not set
@ -206,11 +230,15 @@ CONFIG_IP_TCPDIAG=y
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_KGDBOE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NETPOLL_RX is not set
# CONFIG_NETPOLL_TRAP is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_IEEE80211 is not set
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
@ -227,6 +255,7 @@ CONFIG_PPP=m
# CONFIG_PPP_SYNC_TTY is not set
# CONFIG_PPP_DEFLATE is not set
# CONFIG_PPP_BSDCOMP is not set
# CONFIG_PPP_MPPE is not set
# CONFIG_PPPOE is not set
CONFIG_SLIP=m
# CONFIG_SLIP_COMPRESSED is not set
@ -240,10 +269,12 @@ CONFIG_SLIP=m
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
# CONFIG_REISER4_FS is not set
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
# CONFIG_REISERFS_PROC_INFO is not set
@ -256,6 +287,7 @@ CONFIG_REISERFS_FS=y
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_INOTIFY=y
CONFIG_QUOTA=y
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
@ -264,6 +296,12 @@ CONFIG_DNOTIFY=y
CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
#
# Caches
#
# CONFIG_FSCACHE is not set
# CONFIG_FUSE_FS is not set
#
# CD-ROM/DVD Filesystems
#
@ -291,6 +329,8 @@ CONFIG_TMPFS=y
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
# CONFIG_CONFIGFS_FS is not set
# CONFIG_RELAYFS_FS is not set
#
# Miscellaneous filesystems
@ -319,6 +359,7 @@ CONFIG_RAMFS=y
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
#
# Partition Types
@ -404,14 +445,15 @@ CONFIG_CRC32=m
# CONFIG_PRINTK_TIME is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_DEBUG_SLAB is not set
CONFIG_DEBUG_SLAB=y
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_FS is not set
CONFIG_FRAME_POINTER=y
CONFIG_PT_PROXY=y
# CONFIG_GPROF is not set
# CONFIG_GCOV is not set
# CONFIG_SYSCALL_DEBUG is not set

37
arch/um/drivers/line.c
View file

@ -663,11 +663,15 @@ struct tty_driver *line_register_devfs(struct lines *set,
return driver;
}
static spinlock_t winch_handler_lock;
LIST_HEAD(winch_handlers);
void lines_init(struct line *lines, int nlines)
{
struct line *line;
int i;
spin_lock_init(&winch_handler_lock);
for(i = 0; i < nlines; i++){
line = &lines[i];
INIT_LIST_HEAD(&line->chan_list);
@ -724,31 +728,30 @@ irqreturn_t winch_interrupt(int irq, void *data, struct pt_regs *unused)
return IRQ_HANDLED;
}
DECLARE_MUTEX(winch_handler_sem);
LIST_HEAD(winch_handlers);
void register_winch_irq(int fd, int tty_fd, int pid, struct tty_struct *tty)
{
struct winch *winch;
down(&winch_handler_sem);
winch = kmalloc(sizeof(*winch), GFP_KERNEL);
if (winch == NULL) {
printk("register_winch_irq - kmalloc failed\n");
goto out;
return;
}
*winch = ((struct winch) { .list = LIST_HEAD_INIT(winch->list),
.fd = fd,
.tty_fd = tty_fd,
.pid = pid,
.tty = tty });
spin_lock(&winch_handler_lock);
list_add(&winch->list, &winch_handlers);
spin_unlock(&winch_handler_lock);
if(um_request_irq(WINCH_IRQ, fd, IRQ_READ, winch_interrupt,
SA_INTERRUPT | SA_SHIRQ | SA_SAMPLE_RANDOM,
"winch", winch) < 0)
printk("register_winch_irq - failed to register IRQ\n");
out:
up(&winch_handler_sem);
}
static void unregister_winch(struct tty_struct *tty)
@ -756,7 +759,7 @@ static void unregister_winch(struct tty_struct *tty)
struct list_head *ele;
struct winch *winch, *found = NULL;
down(&winch_handler_sem);
spin_lock(&winch_handler_lock);
list_for_each(ele, &winch_handlers){
winch = list_entry(ele, struct winch, list);
if(winch->tty == tty){
@ -764,20 +767,25 @@ static void unregister_winch(struct tty_struct *tty)
break;
}
}
if(found == NULL)
goto out;
goto err;
list_del(&winch->list);
spin_unlock(&winch_handler_lock);
if(winch->pid != -1)
os_kill_process(winch->pid, 1);
free_irq(WINCH_IRQ, winch);
list_del(&winch->list);
kfree(winch);
out:
up(&winch_handler_sem);
return;
err:
spin_unlock(&winch_handler_lock);
}
/* XXX: No lock as it's an exitcall... is this valid? Depending on cleanup
* order... are we sure that nothing else is done on the list? */
static void winch_cleanup(void)
{
struct list_head *ele;
@ -786,6 +794,9 @@ static void winch_cleanup(void)
list_for_each(ele, &winch_handlers){
winch = list_entry(ele, struct winch, list);
if(winch->fd != -1){
/* Why is this different from the above free_irq(),
* which deactivates SIGIO? This searches the FD
* somewhere else and removes it from the list... */
deactivate_fd(winch->fd, WINCH_IRQ);
os_close_file(winch->fd);
}

1
arch/um/include/mem.h
View file

@ -13,6 +13,7 @@ extern int physmem_subst_mapping(void *virt, int fd, __u64 offset, int w);
extern int is_remapped(void *virt);
extern int physmem_remove_mapping(void *virt);
extern void physmem_forget_descriptor(int fd);
extern unsigned long to_phys(void *virt);
#endif

1
arch/um/include/registers.h
View file

@ -14,6 +14,7 @@ extern int restore_fp_registers(int pid, unsigned long *fp_regs);
extern void save_registers(int pid, union uml_pt_regs *regs);
extern void restore_registers(int pid, union uml_pt_regs *regs);
extern void init_registers(int pid);
extern void get_safe_registers(unsigned long * regs);
#endif

13
arch/um/include/sysdep-i386/ptrace_user.h
View file

@ -20,11 +20,24 @@
#define PT_SYSCALL_ARG3_OFFSET PT_OFFSET(EDX)
#define PT_SYSCALL_ARG4_OFFSET PT_OFFSET(ESI)
#define PT_SYSCALL_ARG5_OFFSET PT_OFFSET(EDI)
#define PT_SYSCALL_ARG6_OFFSET PT_OFFSET(EBP)
#define PT_SYSCALL_RET_OFFSET PT_OFFSET(EAX)
#define REGS_SYSCALL_NR EAX /* This is used before a system call */
#define REGS_SYSCALL_ARG1 EBX
#define REGS_SYSCALL_ARG2 ECX
#define REGS_SYSCALL_ARG3 EDX
#define REGS_SYSCALL_ARG4 ESI
#define REGS_SYSCALL_ARG5 EDI
#define REGS_SYSCALL_ARG6 EBP
#define REGS_IP_INDEX EIP
#define REGS_SP_INDEX UESP
#define PT_IP_OFFSET PT_OFFSET(EIP)
#define PT_IP(regs) ((regs)[EIP])
#define PT_SP_OFFSET PT_OFFSET(UESP)
#define PT_SP(regs) ((regs)[UESP])
#ifndef FRAME_SIZE

65
arch/um/include/sysdep-i386/stub.h Normal file
View file

@ -0,0 +1,65 @@
/*
* Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_STUB_H
#define __SYSDEP_STUB_H
#include <asm/ptrace.h>
#include <asm/unistd.h>
extern void stub_segv_handler(int sig);
extern void stub_clone_handler(void);
#define STUB_SYSCALL_RET EAX
#define STUB_MMAP_NR __NR_mmap2
#define MMAP_OFFSET(o) ((o) >> PAGE_SHIFT)
static inline long stub_syscall2(long syscall, long arg1, long arg2)
{
long ret;
__asm__("movl %0, %%ecx; " : : "g" (arg2) : "%ecx");
__asm__("movl %0, %%ebx; " : : "g" (arg1) : "%ebx");
__asm__("movl %0, %%eax; " : : "g" (syscall) : "%eax");
__asm__("int $0x80;" : : : "%eax");
__asm__ __volatile__("movl %%eax, %0; " : "=g" (ret) :);
return(ret);
}
static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3)
{
__asm__("movl %0, %%edx; " : : "g" (arg3) : "%edx");
return(stub_syscall2(syscall, arg1, arg2));
}
static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
long arg4)
{
__asm__("movl %0, %%esi; " : : "g" (arg4) : "%esi");
return(stub_syscall3(syscall, arg1, arg2, arg3));
}
static inline long stub_syscall6(long syscall, long arg1, long arg2, long arg3,
long arg4, long arg5, long arg6)
{
long ret;
__asm__("movl %0, %%eax; " : : "g" (syscall) : "%eax");
__asm__("movl %0, %%ebx; " : : "g" (arg1) : "%ebx");
__asm__("movl %0, %%ecx; " : : "g" (arg2) : "%ecx");
__asm__("movl %0, %%edx; " : : "g" (arg3) : "%edx");
__asm__("movl %0, %%esi; " : : "g" (arg4) : "%esi");
__asm__("movl %0, %%edi; " : : "g" (arg5) : "%edi");
__asm__ __volatile__("pushl %%ebp ; movl %1, %%ebp; "
"int $0x80; popl %%ebp ; "
"movl %%eax, %0; " : "=g" (ret) : "g" (arg6) : "%eax");
return(ret);
}
static inline void trap_myself(void)
{
__asm("int3");
}
#endif

14
arch/um/include/sysdep-x86_64/ptrace_user.h
View file

@ -55,6 +55,20 @@
#define PTRACE_OLDSETOPTIONS 21
#endif
/* These are before the system call, so the the system call number is RAX
* rather than ORIG_RAX, and arg4 is R10 rather than RCX
*/
#define REGS_SYSCALL_NR PT_INDEX(RAX)
#define REGS_SYSCALL_ARG1 PT_INDEX(RDI)
#define REGS_SYSCALL_ARG2 PT_INDEX(RSI)
#define REGS_SYSCALL_ARG3 PT_INDEX(RDX)
#define REGS_SYSCALL_ARG4 PT_INDEX(R10)
#define REGS_SYSCALL_ARG5 PT_INDEX(R8)
#define REGS_SYSCALL_ARG6 PT_INDEX(R9)
#define REGS_IP_INDEX PT_INDEX(RIP)
#define REGS_SP_INDEX PT_INDEX(RSP)
#endif
/*

58
arch/um/include/sysdep-x86_64/stub.h Normal file
View file

@ -0,0 +1,58 @@
/*
* Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
* Licensed under the GPL
*/
#ifndef __SYSDEP_STUB_H
#define __SYSDEP_STUB_H
#include <asm/ptrace.h>
#include <asm/unistd.h>
#include <sysdep/ptrace_user.h>
extern void stub_segv_handler(int sig);
extern void stub_clone_handler(void);
#define STUB_SYSCALL_RET PT_INDEX(RAX)
#define STUB_MMAP_NR __NR_mmap
#define MMAP_OFFSET(o) (o)
static inline long stub_syscall2(long syscall, long arg1, long arg2)
{
long ret;
__asm__("movq %0, %%rsi; " : : "g" (arg2) : "%rsi");
__asm__("movq %0, %%rdi; " : : "g" (arg1) : "%rdi");
__asm__("movq %0, %%rax; " : : "g" (syscall) : "%rax");
__asm__("syscall;" : : : "%rax", "%r11", "%rcx");
__asm__ __volatile__("movq %%rax, %0; " : "=g" (ret) :);
return(ret);
}
static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3)
{
__asm__("movq %0, %%rdx; " : : "g" (arg3) : "%rdx");
return(stub_syscall2(syscall, arg1, arg2));
}
static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
long arg4)
{
__asm__("movq %0, %%r10; " : : "g" (arg4) : "%r10");
return(stub_syscall3(syscall, arg1, arg2, arg3));
}
static inline long stub_syscall6(long syscall, long arg1, long arg2, long arg3,
long arg4, long arg5, long arg6)
{
__asm__("movq %0, %%r9; " : : "g" (arg6) : "%r9");
__asm__("movq %0, %%r8; " : : "g" (arg5) : "%r8");
return(stub_syscall4(syscall, arg1, arg2, arg3, arg4));
}
static inline void trap_myself(void)
{
__asm("int3");
}
#endif

1
arch/um/include/time_user.h
View file

@ -10,6 +10,7 @@ extern void timer(void);
extern void switch_timers(int to_real);
extern void idle_sleep(int secs);
extern void enable_timer(void);
extern void prepare_timer(void * ptr);
extern void disable_timer(void);
extern unsigned long time_lock(void);
extern void time_unlock(unsigned long);

30
arch/um/include/tlb.h
View file

@ -37,31 +37,25 @@ struct host_vm_op {
extern void mprotect_kernel_vm(int w);
extern void force_flush_all(void);
extern void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
unsigned long end_addr, int force, int data,
void (*do_ops)(int, struct host_vm_op *, int));
unsigned long end_addr, int force,
void (*do_ops)(union mm_context *,
struct host_vm_op *, int));
extern int flush_tlb_kernel_range_common(unsigned long start,
unsigned long end);
extern int add_mmap(unsigned long virt, unsigned long phys, unsigned long len,
int r, int w, int x, struct host_vm_op *ops, int index,
int last_filled, int data,
void (*do_ops)(int, struct host_vm_op *, int));
int last_filled, union mm_context *mmu,
void (*do_ops)(union mm_context *, struct host_vm_op *,
int));
extern int add_munmap(unsigned long addr, unsigned long len,
struct host_vm_op *ops, int index, int last_filled,
int data, void (*do_ops)(int, struct host_vm_op *, int));
union mm_context *mmu,
void (*do_ops)(union mm_context *, struct host_vm_op *,
int));
extern int add_mprotect(unsigned long addr, unsigned long len, int r, int w,
int x, struct host_vm_op *ops, int index,
int last_filled, int data,
void (*do_ops)(int, struct host_vm_op *, int));
int last_filled, union mm_context *mmu,
void (*do_ops)(union mm_context *, struct host_vm_op *,
int));
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

6
arch/um/kernel/dyn.lds.S
View file

@ -67,6 +67,12 @@ SECTIONS
*(.stub .text.* .gnu.linkonce.t.*)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
. = ALIGN(4096);
__syscall_stub_start = .;
*(.__syscall_stub*)
__syscall_stub_end = .;
. = ALIGN(4096);
} =0x90909090
.fini : {
KEEP (*(.fini))

8
arch/um/kernel/physmem.c
View file

@ -353,6 +353,8 @@ void map_memory(unsigned long virt, unsigned long phys, unsigned long len,
#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
extern int __syscall_stub_start, __binary_start;
void setup_physmem(unsigned long start, unsigned long reserve_end,
unsigned long len, unsigned long highmem)
{
@ -371,6 +373,12 @@ void setup_physmem(unsigned long start, unsigned long reserve_end,
exit(1);
}
/* Special kludge - This page will be mapped in to userspace processes
* from physmem_fd, so it needs to be written out there.
*/
os_seek_file(physmem_fd, __pa(&__syscall_stub_start));
os_write_file(physmem_fd, &__syscall_stub_start, PAGE_SIZE);
bootmap_size = init_bootmem(pfn, pfn + delta);
free_bootmem(__pa(reserve_end) + bootmap_size,
len - bootmap_size - reserve);

28
arch/um/kernel/process.c
View file

@ -32,6 +32,7 @@
#include "uml-config.h"
#include "choose-mode.h"
#include "mode.h"
#include "tempfile.h"
#ifdef UML_CONFIG_MODE_SKAS
#include "skas.h"
#include "skas_ptrace.h"
@ -358,11 +359,16 @@ void forward_pending_sigio(int target)
kill(target, SIGIO);
}
int ptrace_faultinfo = 0;
int proc_mm = 1;
extern void *__syscall_stub_start, __syscall_stub_end;
#ifdef UML_CONFIG_MODE_SKAS
static inline int check_skas3_ptrace_support(void)
static inline void check_skas3_ptrace_support(void)
{
struct ptrace_faultinfo fi;
int pid, n, ret = 1;
int pid, n;
printf("Checking for the skas3 patch in the host...");
pid = start_ptraced_child();
@ -374,33 +380,31 @@ static inline int check_skas3_ptrace_support(void)
else {
perror("not found");
}
ret = 0;
} else {
}
else {
ptrace_faultinfo = 1;
printf("found\n");
}
init_registers(pid);
stop_ptraced_child(pid, 1, 1);
return(ret);
}
int can_do_skas(void)
{
int ret = 1;
printf("Checking for /proc/mm...");
if (os_access("/proc/mm", OS_ACC_W_OK) < 0) {
proc_mm = 0;
printf("not found\n");
ret = 0;
goto out;
} else {
}
else {
printf("found\n");
}
ret = check_skas3_ptrace_support();
out:
return ret;
check_skas3_ptrace_support();
return 1;
}
#else
int can_do_skas(void)

7
arch/um/kernel/skas/Makefile
View file

@ -3,11 +3,14 @@
# Licensed under the GPL
#
obj-y := exec_kern.o mem.o mem_user.o mmu.o process.o process_kern.o \
obj-y := clone.o exec_kern.o mem.o mem_user.o mmu.o process.o process_kern.o \
syscall_kern.o syscall_user.o tlb.o trap_user.o uaccess.o \
subdir- := util
USER_OBJS := process.o
USER_OBJS := process.o clone.o
include arch/um/scripts/Makefile.rules
# clone.o is in the stub, so it can't be built with profiling
$(obj)/clone.o : c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS))

44
arch/um/kernel/skas/clone.c Normal file
View file

@ -0,0 +1,44 @@
#include <sched.h>
#include <signal.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <asm/unistd.h>
#include <asm/page.h>
#include "ptrace_user.h"
#include "skas.h"
#include "stub-data.h"
#include "uml-config.h"
#include "sysdep/stub.h"
/* This is in a separate file because it needs to be compiled with any
* extraneous gcc flags (-pg, -fprofile-arcs, -ftest-coverage) disabled
*/
void __attribute__ ((__section__ (".__syscall_stub")))
stub_clone_handler(void)
{
long err;
struct stub_data *from = (struct stub_data *) UML_CONFIG_STUB_DATA;
err = stub_syscall2(__NR_clone, CLONE_PARENT | CLONE_FILES | SIGCHLD,
UML_CONFIG_STUB_DATA + PAGE_SIZE / 2 -
sizeof(void *));
if(err != 0)
goto out;
err = stub_syscall4(__NR_ptrace, PTRACE_TRACEME, 0, 0, 0);
if(err)
goto out;
err = stub_syscall3(__NR_setitimer, ITIMER_VIRTUAL,
(long) &from->timer, 0);
if(err)
goto out;
err = stub_syscall6(STUB_MMAP_NR, UML_CONFIG_STUB_DATA, PAGE_SIZE,
PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED,
from->fd, from->offset);
out:
/* save current result. Parent: pid; child: retcode of mmap */
from->err = err;
trap_myself();
}

2
arch/um/kernel/skas/exec_kern.c
View file

@ -18,7 +18,7 @@
void flush_thread_skas(void)
{
force_flush_all();
switch_mm_skas(current->mm->context.skas.mm_fd);
switch_mm_skas(&current->mm->context.skas.id);
}
void start_thread_skas(struct pt_regs *regs, unsigned long eip,

17
arch/um/kernel/skas/include/mm_id.h Normal file
View file

@ -0,0 +1,17 @@
/*
* Copyright (C) 2005 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __MM_ID_H
#define __MM_ID_H
struct mm_id {
union {
int mm_fd;
int pid;
} u;
unsigned long stack;
};
#endif

7
arch/um/kernel/skas/include/mmu-skas.h
View file

@ -6,10 +6,15 @@
#ifndef __SKAS_MMU_H
#define __SKAS_MMU_H
#include "mm_id.h"
struct mmu_context_skas {
int mm_fd;
struct mm_id id;
unsigned long last_page_table;
};
extern void switch_mm_skas(struct mm_id * mm_idp);
#endif
/*

16
arch/um/kernel/skas/include/skas.h
View file

@ -6,9 +6,11 @@
#ifndef __SKAS_H
#define __SKAS_H
#include "mm_id.h"
#include "sysdep/ptrace.h"
extern int userspace_pid[];
extern int proc_mm, ptrace_faultinfo;
extern void switch_threads(void *me, void *next);
extern void thread_wait(void *sw, void *fb);
@ -22,16 +24,18 @@ extern void new_thread_proc(void *stack, void (*handler)(int sig));
extern void remove_sigstack(void);
extern void new_thread_handler(int sig);
extern void handle_syscall(union uml_pt_regs *regs);
extern void map(int fd, unsigned long virt, unsigned long len, int r, int w,
int x, int phys_fd, unsigned long long offset);
extern int unmap(int fd, void *addr, unsigned long len);
extern int protect(int fd, unsigned long addr, unsigned long len,
int r, int w, int x);
extern int map(struct mm_id * mm_idp, unsigned long virt, unsigned long len,
int r, int w, int x, int phys_fd, unsigned long long offset);
extern int unmap(struct mm_id * mm_idp, void *addr, unsigned long len);
extern int protect(struct mm_id * mm_idp, unsigned long addr,
unsigned long len, int r, int w, int x);
extern void user_signal(int sig, union uml_pt_regs *regs, int pid);
extern int new_mm(int from);
extern void start_userspace(int cpu);
extern int start_userspace(unsigned long stub_stack);
extern int copy_context_skas0(unsigned long stack, int pid);
extern void get_skas_faultinfo(int pid, struct faultinfo * fi);
extern long execute_syscall_skas(void *r);
extern unsigned long current_stub_stack(void);
#endif

18
arch/um/kernel/skas/include/stub-data.h Normal file
View file

@ -0,0 +1,18 @@
/*
* Copyright (C) 2005 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __STUB_DATA_H
#define __STUB_DATA_H
#include <sys/time.h>
struct stub_data {
long offset;
int fd;
struct itimerval timer;
long err;
};
#endif

6
arch/um/kernel/skas/mem.c
View file

@ -5,7 +5,9 @@
#include "linux/config.h"
#include "linux/mm.h"
#include "asm/pgtable.h"
#include "mem_user.h"
#include "skas.h"
unsigned long set_task_sizes_skas(int arg, unsigned long *host_size_out,
unsigned long *task_size_out)
@ -18,7 +20,9 @@ unsigned long set_task_sizes_skas(int arg, unsigned long *host_size_out,
*task_size_out = CONFIG_HOST_TASK_SIZE;
#else
*host_size_out = top;
*task_size_out = top;
if (proc_mm && ptrace_faultinfo)
*task_size_out = top;
else *task_size_out = CONFIG_STUB_START & PGDIR_MASK;
#endif
return(((unsigned long) set_task_sizes_skas) & ~0xffffff);
}

205
arch/um/kernel/skas/mem_user.c
View file

@ -3,100 +3,171 @@
* Licensed under the GPL
*/
#include <signal.h>
#include <errno.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <asm/page.h>
#include <asm/unistd.h>
#include "mem_user.h"
#include "mem.h"
#include "mm_id.h"
#include "user.h"
#include "os.h"
#include "proc_mm.h"
#include "ptrace_user.h"
#include "user_util.h"
#include "kern_util.h"
#include "task.h"
#include "registers.h"
#include "uml-config.h"
#include "sysdep/ptrace.h"
#include "sysdep/stub.h"
#include "skas.h"
void map(int fd, unsigned long virt, unsigned long len, int r, int w,
int x, int phys_fd, unsigned long long offset)
extern unsigned long syscall_stub, __syscall_stub_start;
extern void wait_stub_done(int pid, int sig, char * fname);
static long run_syscall_stub(struct mm_id * mm_idp, int syscall,
unsigned long *args)
{
struct proc_mm_op map;
int prot, n;
int n, pid = mm_idp->u.pid;
unsigned long regs[MAX_REG_NR];
prot = (r ? PROT_READ : 0) | (w ? PROT_WRITE : 0) |
(x ? PROT_EXEC : 0);
get_safe_registers(regs);
regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE +
((unsigned long) &syscall_stub -
(unsigned long) &__syscall_stub_start);
/* XXX Don't have a define for starting a syscall */
regs[REGS_SYSCALL_NR] = syscall;
regs[REGS_SYSCALL_ARG1] = args[0];
regs[REGS_SYSCALL_ARG2] = args[1];
regs[REGS_SYSCALL_ARG3] = args[2];
regs[REGS_SYSCALL_ARG4] = args[3];
regs[REGS_SYSCALL_ARG5] = args[4];
regs[REGS_SYSCALL_ARG6] = args[5];
n = ptrace_setregs(pid, regs);
if(n < 0){
printk("run_syscall_stub : PTRACE_SETREGS failed, "
"errno = %d\n", n);
return(n);
}
map = ((struct proc_mm_op) { .op = MM_MMAP,
.u =
{ .mmap =
{ .addr = virt,
.len = len,
.prot = prot,
.flags = MAP_SHARED |
MAP_FIXED,
.fd = phys_fd,
.offset = offset
} } } );
n = os_write_file(fd, &map, sizeof(map));
if(n != sizeof(map))
printk("map : /proc/mm map failed, err = %d\n", -n);
wait_stub_done(pid, 0, "run_syscall_stub");
return(*((unsigned long *) mm_idp->stack));
}
int unmap(int fd, void *addr, unsigned long len)
int map(struct mm_id *mm_idp, unsigned long virt, unsigned long len,
int r, int w, int x, int phys_fd, unsigned long long offset)
{
struct proc_mm_op unmap;
int n;
int prot, n;
unmap = ((struct proc_mm_op) { .op = MM_MUNMAP,
.u =
{ .munmap =
{ .addr = (unsigned long) addr,
.len = len } } } );
n = os_write_file(fd, &unmap, sizeof(unmap));
if(n != sizeof(unmap)) {
if(n < 0)
return(n);
else if(n > 0)
return(-EIO);
}
prot = (r ? PROT_READ : 0) | (w ? PROT_WRITE : 0) |
(x ? PROT_EXEC : 0);
return(0);
if(proc_mm){
struct proc_mm_op map;
int fd = mm_idp->u.mm_fd;
map = ((struct proc_mm_op) { .op = MM_MMAP,
.u =
{ .mmap =
{ .addr = virt,
.len = len,
.prot = prot,
.flags = MAP_SHARED |
MAP_FIXED,
.fd = phys_fd,
.offset= offset
} } } );
n = os_write_file(fd, &map, sizeof(map));
if(n != sizeof(map))
printk("map : /proc/mm map failed, err = %d\n", -n);
}
else {
long res;
unsigned long args[] = { virt, len, prot,
MAP_SHARED | MAP_FIXED, phys_fd,
MMAP_OFFSET(offset) };
res = run_syscall_stub(mm_idp, STUB_MMAP_NR, args);
if((void *) res == MAP_FAILED)
printk("mmap stub failed, errno = %d\n", res);
}
return 0;
}
int protect(int fd, unsigned long addr, unsigned long len, int r, int w,
int x, int must_succeed)
int unmap(struct mm_id *mm_idp, void *addr, unsigned long len)
{
struct proc_mm_op protect;
int prot, n;
int n;
prot = (r ? PROT_READ : 0) | (w ? PROT_WRITE : 0) |
(x ? PROT_EXEC : 0);
if(proc_mm){
struct proc_mm_op unmap;
int fd = mm_idp->u.mm_fd;
unmap = ((struct proc_mm_op) { .op = MM_MUNMAP,
.u =
{ .munmap =
{ .addr =
(unsigned long) addr,
.len = len } } } );
n = os_write_file(fd, &unmap, sizeof(unmap));
if(n != sizeof(unmap)) {
if(n < 0)
return(n);
else if(n > 0)
return(-EIO);
}
}
else {
int res;
unsigned long args[] = { (unsigned long) addr, len, 0, 0, 0,
0 };
protect = ((struct proc_mm_op) { .op = MM_MPROTECT,
.u =
{ .mprotect =
{ .addr = (unsigned long) addr,
.len = len,
.prot = prot } } } );
res = run_syscall_stub(mm_idp, __NR_munmap, args);
if(res < 0)
printk("munmap stub failed, errno = %d\n", res);
}
n = os_write_file(fd, &protect, sizeof(protect));
if(n != sizeof(protect)) {
if(n == 0) return(0);
return(0);
}
if(must_succeed)
panic("protect failed, err = %d", -n);
int protect(struct mm_id *mm_idp, unsigned long addr, unsigned long len,
int r, int w, int x)
{
struct proc_mm_op protect;
int prot, n;
return(-EIO);
}
prot = (r ? PROT_READ : 0) | (w ? PROT_WRITE : 0) |
(x ? PROT_EXEC : 0);
return(0);
if(proc_mm){
int fd = mm_idp->u.mm_fd;
protect = ((struct proc_mm_op) { .op = MM_MPROTECT,
.u =
{ .mprotect =
{ .addr =
(unsigned long) addr,
.len = len,
.prot = prot } } } );
n = os_write_file(fd, &protect, sizeof(protect));
if(n != sizeof(protect))
panic("protect failed, err = %d", -n);
}
else {
int res;
unsigned long args[] = { addr, len, prot, 0, 0, 0 };
res = run_syscall_stub(mm_idp, __NR_mprotect, args);
if(res < 0)
panic("mprotect stub failed, errno = %d\n", res);
}
return(0);
}
void before_mem_skas(unsigned long unused)
{
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

141
arch/um/kernel/skas/mmu.c
View file

@ -3,46 +3,143 @@
* Licensed under the GPL
*/
#include "linux/config.h"
#include "linux/sched.h"
#include "linux/list.h"
#include "linux/spinlock.h"
#include "linux/slab.h"
#include "linux/errno.h"
#include "linux/mm.h"
#include "asm/current.h"
#include "asm/segment.h"
#include "asm/mmu.h"
#include "asm/pgalloc.h"
#include "asm/pgtable.h"
#include "os.h"
#include "skas.h"
extern int __syscall_stub_start;
static int init_stub_pte(struct mm_struct *mm, unsigned long proc,
unsigned long kernel)
{
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
spin_lock(&mm->page_table_lock);
pgd = pgd_offset(mm, proc);
pud = pud_alloc(mm, pgd, proc);
if (!pud)
goto out;
pmd = pmd_alloc(mm, pud, proc);
if (!pmd)
goto out_pmd;
pte = pte_alloc_map(mm, pmd, proc);
if (!pte)
goto out_pte;
/* There's an interaction between the skas0 stub pages, stack
* randomization, and the BUG at the end of exit_mmap. exit_mmap
* checks that the number of page tables freed is the same as had
* been allocated. If the stack is on the last page table page,
* then the stack pte page will be freed, and if not, it won't. To
* avoid having to know where the stack is, or if the process mapped
* something at the top of its address space for some other reason,
* we set TASK_SIZE to end at the start of the last page table.
* This keeps exit_mmap off the last page, but introduces a leak
* of that page. So, we hang onto it here and free it in
* destroy_context_skas.
*/
mm->context.skas.last_page_table = pmd_page_kernel(*pmd);
*pte = mk_pte(virt_to_page(kernel), __pgprot(_PAGE_PRESENT));
*pte = pte_mkexec(*pte);
*pte = pte_wrprotect(*pte);
spin_unlock(&mm->page_table_lock);
return(0);
out_pmd:
pud_free(pud);
out_pte:
pmd_free(pmd);
out:
spin_unlock(&mm->page_table_lock);
return(-ENOMEM);
}
int init_new_context_skas(struct task_struct *task, struct mm_struct *mm)
{
int from;
struct mm_struct *cur_mm = current->mm;
struct mm_id *cur_mm_id = &cur_mm->context.skas.id;
struct mm_id *mm_id = &mm->context.skas.id;
unsigned long stack;
int from, ret;
if((current->mm != NULL) && (current->mm != &init_mm))
from = current->mm->context.skas.mm_fd;
else from = -1;
if(proc_mm){
if((cur_mm != NULL) && (cur_mm != &init_mm))
from = cur_mm->context.skas.id.u.mm_fd;
else from = -1;
mm->context.skas.mm_fd = new_mm(from);
if(mm->context.skas.mm_fd < 0){
printk("init_new_context_skas - new_mm failed, errno = %d\n",
mm->context.skas.mm_fd);
return(mm->context.skas.mm_fd);
ret = new_mm(from);
if(ret < 0){
printk("init_new_context_skas - new_mm failed, "
"errno = %d\n", ret);
return ret;
}
mm_id->u.mm_fd = ret;
}
else {
/* This zeros the entry that pgd_alloc didn't, needed since
* we are about to reinitialize it, and want mm.nr_ptes to
* be accurate.
*/
mm->pgd[USER_PTRS_PER_PGD] = __pgd(0);
ret = init_stub_pte(mm, CONFIG_STUB_CODE,
(unsigned long) &__syscall_stub_start);
if(ret)
goto out;
ret = -ENOMEM;
stack = get_zeroed_page(GFP_KERNEL);
if(stack == 0)
goto out;
mm_id->stack = stack;
ret = init_stub_pte(mm, CONFIG_STUB_DATA, stack);
if(ret)
goto out_free;
mm->nr_ptes--;
if((cur_mm != NULL) && (cur_mm != &init_mm))
mm_id->u.pid = copy_context_skas0(stack,
cur_mm_id->u.pid);
else mm_id->u.pid = start_userspace(stack);
}
return(0);
return 0;
out_free:
free_page(mm_id->stack);
out:
return ret;
}
void destroy_context_skas(struct mm_struct *mm)
{
os_close_file(mm->context.skas.mm_fd);
}
struct mmu_context_skas *mmu = &mm->context.skas;
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/
if(proc_mm)
os_close_file(mmu->id.u.mm_fd);
else {
os_kill_ptraced_process(mmu->id.u.pid, 1);
free_page(mmu->id.stack);
free_page(mmu->last_page_table);
}
}

212
arch/um/kernel/skas/process.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2002- 2004 Jeff Dike (jdike@addtoit.com)
* Licensed under the GPL
*/
@ -13,7 +13,9 @@
#include <sys/wait.h>
#include <sys/mman.h>
#include <sys/user.h>
#include <sys/time.h>
#include <asm/unistd.h>
#include <asm/types.h>
#include "user.h"
#include "ptrace_user.h"
#include "time_user.h"
@ -21,13 +23,18 @@
#include "user_util.h"
#include "kern_util.h"
#include "skas.h"
#include "stub-data.h"
#include "mm_id.h"
#include "sysdep/sigcontext.h"
#include "sysdep/stub.h"
#include "os.h"
#include "proc_mm.h"
#include "skas_ptrace.h"
#include "chan_user.h"
#include "signal_user.h"
#include "registers.h"
#include "mem.h"
#include "uml-config.h"
#include "process.h"
int is_skas_winch(int pid, int fd, void *data)
@ -39,20 +46,55 @@ int is_skas_winch(int pid, int fd, void *data)
return(1);
}
void wait_stub_done(int pid, int sig, char * fname)
{
int n, status, err;
do {
if ( sig != -1 ) {
err = ptrace(PTRACE_CONT, pid, 0, sig);
if(err)
panic("%s : continue failed, errno = %d\n",
fname, errno);
}
sig = 0;
CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED));
} while((n >= 0) && WIFSTOPPED(status) &&
(WSTOPSIG(status) == SIGVTALRM));
if((n < 0) || !WIFSTOPPED(status) ||
(WSTOPSIG(status) != SIGUSR1 && WSTOPSIG(status != SIGTRAP))){
panic("%s : failed to wait for SIGUSR1/SIGTRAP, "
"pid = %d, n = %d, errno = %d, status = 0x%x\n",
fname, pid, n, errno, status);
}
}
void get_skas_faultinfo(int pid, struct faultinfo * fi)
{
int err;
int err;
err = ptrace(PTRACE_FAULTINFO, pid, 0, fi);
if(err)
panic("get_skas_faultinfo - PTRACE_FAULTINFO failed, "
"errno = %d\n", errno);
if(ptrace_faultinfo){
err = ptrace(PTRACE_FAULTINFO, pid, 0, fi);
if(err)
panic("get_skas_faultinfo - PTRACE_FAULTINFO failed, "
"errno = %d\n", errno);
/* Special handling for i386, which has different structs */
if (sizeof(struct ptrace_faultinfo) < sizeof(struct faultinfo))
memset((char *)fi + sizeof(struct ptrace_faultinfo), 0,
sizeof(struct faultinfo) -
sizeof(struct ptrace_faultinfo));
/* Special handling for i386, which has different structs */
if (sizeof(struct ptrace_faultinfo) < sizeof(struct faultinfo))
memset((char *)fi + sizeof(struct ptrace_faultinfo), 0,
sizeof(struct faultinfo) -
sizeof(struct ptrace_faultinfo));
}
else {
wait_stub_done(pid, SIGSEGV, "get_skas_faultinfo");
/* faultinfo is prepared by the stub-segv-handler at start of
* the stub stack page. We just have to copy it.
*/
memcpy(fi, (void *)current_stub_stack(), sizeof(*fi));
}
}
static void handle_segv(int pid, union uml_pt_regs * regs)
@ -91,11 +133,56 @@ static void handle_trap(int pid, union uml_pt_regs *regs, int local_using_sysemu
handle_syscall(regs);
}
static int userspace_tramp(void *arg)
extern int __syscall_stub_start;
static int userspace_tramp(void *stack)
{
init_new_thread_signals(0);
enable_timer();
void *addr;
ptrace(PTRACE_TRACEME, 0, 0, 0);
init_new_thread_signals(1);
enable_timer();
if(!proc_mm){
/* This has a pte, but it can't be mapped in with the usual
* tlb_flush mechanism because this is part of that mechanism
*/
int fd;
__u64 offset;
fd = phys_mapping(to_phys(&__syscall_stub_start), &offset);
addr = mmap64((void *) UML_CONFIG_STUB_CODE, page_size(),
PROT_EXEC, MAP_FIXED | MAP_PRIVATE, fd, offset);
if(addr == MAP_FAILED){
printk("mapping mmap stub failed, errno = %d\n",
errno);
exit(1);
}
if(stack != NULL){
fd = phys_mapping(to_phys(stack), &offset);
addr = mmap((void *) UML_CONFIG_STUB_DATA, page_size(),
PROT_READ | PROT_WRITE,
MAP_FIXED | MAP_SHARED, fd, offset);
if(addr == MAP_FAILED){
printk("mapping segfault stack failed, "
"errno = %d\n", errno);
exit(1);
}
}
}
if(!ptrace_faultinfo && (stack != NULL)){
unsigned long v = UML_CONFIG_STUB_CODE +
(unsigned long) stub_segv_handler -
(unsigned long) &__syscall_stub_start;
set_sigstack((void *) UML_CONFIG_STUB_DATA, page_size());
set_handler(SIGSEGV, (void *) v, SA_ONSTACK,
SIGIO, SIGWINCH, SIGALRM, SIGVTALRM,
SIGUSR1, -1);
}
os_stop_process(os_getpid());
return(0);
}
@ -105,11 +192,11 @@ static int userspace_tramp(void *arg)
#define NR_CPUS 1
int userspace_pid[NR_CPUS];
void start_userspace(int cpu)
int start_userspace(unsigned long stub_stack)
{
void *stack;
unsigned long sp;
int pid, status, n;
int pid, status, n, flags;
stack = mmap(NULL, PAGE_SIZE, PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
@ -117,8 +204,9 @@ void start_userspace(int cpu)
panic("start_userspace : mmap failed, errno = %d", errno);
sp = (unsigned long) stack + PAGE_SIZE - sizeof(void *);
pid = clone(userspace_tramp, (void *) sp,
CLONE_FILES | CLONE_VM | SIGCHLD, NULL);
flags = CLONE_FILES | SIGCHLD;
if(proc_mm) flags |= CLONE_VM;
pid = clone(userspace_tramp, (void *) sp, flags, (void *) stub_stack);
if(pid < 0)
panic("start_userspace : clone failed, errno = %d", errno);
@ -140,7 +228,7 @@ void start_userspace(int cpu)
if(munmap(stack, PAGE_SIZE) < 0)
panic("start_userspace : munmap failed, errno = %d\n", errno);
userspace_pid[cpu] = pid;
return(pid);
}
void userspace(union uml_pt_regs *regs)
@ -174,7 +262,9 @@ void userspace(union uml_pt_regs *regs)
if(WIFSTOPPED(status)){
switch(WSTOPSIG(status)){
case SIGSEGV:
handle_segv(pid, regs);
if(PTRACE_FULL_FAULTINFO || !ptrace_faultinfo)
user_signal(SIGSEGV, regs, pid);
else handle_segv(pid, regs);
break;
case SIGTRAP + 0x80:
handle_trap(pid, regs, local_using_sysemu);
@ -194,6 +284,7 @@ void userspace(union uml_pt_regs *regs)
printk("userspace - child stopped with signal "
"%d\n", WSTOPSIG(status));
}
pid = userspace_pid[0];
interrupt_end();
/* Avoid -ERESTARTSYS handling in host */
@ -207,6 +298,67 @@ void userspace(union uml_pt_regs *regs)
#define INIT_JMP_HALT 3
#define INIT_JMP_REBOOT 4
int copy_context_skas0(unsigned long new_stack, int pid)
{
int err;
unsigned long regs[MAX_REG_NR];
unsigned long current_stack = current_stub_stack();
struct stub_data *data = (struct stub_data *) current_stack;
struct stub_data *child_data = (struct stub_data *) new_stack;
__u64 new_offset;
int new_fd = phys_mapping(to_phys((void *)new_stack), &new_offset);
/* prepare offset and fd of child's stack as argument for parent's
* and child's mmap2 calls
*/
*data = ((struct stub_data) { .offset = MMAP_OFFSET(new_offset),
.fd = new_fd,
.timer = ((struct itimerval)
{ { 0, 1000000 / hz() },
{ 0, 1000000 / hz() }})});
get_safe_registers(regs);
/* Set parent's instruction pointer to start of clone-stub */
regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE +
(unsigned long) stub_clone_handler -
(unsigned long) &__syscall_stub_start;
regs[REGS_SP_INDEX] = UML_CONFIG_STUB_DATA + PAGE_SIZE -
sizeof(void *);
err = ptrace_setregs(pid, regs);
if(err < 0)
panic("copy_context_skas0 : PTRACE_SETREGS failed, "
"pid = %d, errno = %d\n", pid, errno);
/* set a well known return code for detection of child write failure */
child_data->err = 12345678;
/* Wait, until parent has finished its work: read child's pid from
* parent's stack, and check, if bad result.
*/
wait_stub_done(pid, 0, "copy_context_skas0");
pid = data->err;
if(pid < 0)
panic("copy_context_skas0 - stub-parent reports error %d\n",
pid);
/* Wait, until child has finished too: read child's result from
* child's stack and check it.
*/
wait_stub_done(pid, -1, "copy_context_skas0");
if (child_data->err != UML_CONFIG_STUB_DATA)
panic("copy_context_skas0 - stub-child reports error %d\n",
child_data->err);
if (ptrace(PTRACE_OLDSETOPTIONS, pid, NULL,
(void *)PTRACE_O_TRACESYSGOOD) < 0)
panic("copy_context_skas0 : PTRACE_SETOPTIONS failed, "
"errno = %d\n", errno);
return pid;
}
void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr,
void (*handler)(int))
{
@ -334,21 +486,19 @@ void reboot_skas(void)
siglongjmp(initial_jmpbuf, INIT_JMP_REBOOT);
}
void switch_mm_skas(int mm_fd)
void switch_mm_skas(struct mm_id *mm_idp)
{
int err;
#warning need cpu pid in switch_mm_skas
err = ptrace(PTRACE_SWITCH_MM, userspace_pid[0], 0, mm_fd);
if(err)
panic("switch_mm_skas - PTRACE_SWITCH_MM failed, errno = %d\n",
errno);
}
void kill_off_processes_skas(void)
{
#warning need to loop over userspace_pids in kill_off_processes_skas
os_kill_ptraced_process(userspace_pid[0], 1);
if(proc_mm){
err = ptrace(PTRACE_SWITCH_MM, userspace_pid[0], 0,
mm_idp->u.mm_fd);
if(err)
panic("switch_mm_skas - PTRACE_SWITCH_MM failed, "
"errno = %d\n", errno);
}
else userspace_pid[0] = mm_idp->u.pid;
}
/*

33
arch/um/kernel/skas/process_kern.c
View file

@ -175,9 +175,12 @@ static int start_kernel_proc(void *unused)
return(0);
}
extern int userspace_pid[];
int start_uml_skas(void)
{
start_userspace(0);
if(proc_mm)
userspace_pid[0] = start_userspace(0);
init_new_thread_signals(1);
@ -199,3 +202,31 @@ int thread_pid_skas(struct task_struct *task)
#warning Need to look up userspace_pid by cpu
return(userspace_pid[0]);
}
void kill_off_processes_skas(void)
{
if(proc_mm)
#warning need to loop over userspace_pids in kill_off_processes_skas
os_kill_ptraced_process(userspace_pid[0], 1);
else {
struct task_struct *p;
int pid, me;
me = os_getpid();
for_each_process(p){
if(p->mm == NULL)
continue;
pid = p->mm->context.skas.id.u.pid;
os_kill_ptraced_process(pid, 1);
}
}
}
unsigned long current_stub_stack(void)
{
if(current->mm == NULL)
return(0);
return(current->mm->context.skas.id.stack);
}

29
arch/um/kernel/skas/tlb.c
View file

@ -6,6 +6,7 @@
#include "linux/stddef.h"
#include "linux/sched.h"
#include "linux/config.h"
#include "linux/mm.h"
#include "asm/page.h"
#include "asm/pgtable.h"
@ -17,7 +18,7 @@
#include "os.h"
#include "tlb.h"
static void do_ops(int fd, struct host_vm_op *ops, int last)
static void do_ops(union mm_context *mmu, struct host_vm_op *ops, int last)
{
struct host_vm_op *op;
int i;
@ -26,18 +27,18 @@ static void do_ops(int fd, struct host_vm_op *ops, int last)
op = &ops[i];
switch(op->type){
case MMAP:
map(fd, op->u.mmap.addr, op->u.mmap.len,
map(&mmu->skas.id, op->u.mmap.addr, op->u.mmap.len,
op->u.mmap.r, op->u.mmap.w, op->u.mmap.x,
op->u.mmap.fd, op->u.mmap.offset);
break;
case MUNMAP:
unmap(fd, (void *) op->u.munmap.addr,
unmap(&mmu->skas.id, (void *) op->u.munmap.addr,
op->u.munmap.len);
break;
case MPROTECT:
protect(fd, op->u.mprotect.addr, op->u.mprotect.len,
op->u.mprotect.r, op->u.mprotect.w,
op->u.mprotect.x);
protect(&mmu->skas.id, op->u.mprotect.addr,
op->u.mprotect.len, op->u.mprotect.r,
op->u.mprotect.w, op->u.mprotect.x);
break;
default:
printk("Unknown op type %d in do_ops\n", op->type);
@ -46,12 +47,15 @@ static void do_ops(int fd, struct host_vm_op *ops, int last)
}
}
extern int proc_mm;
static void fix_range(struct mm_struct *mm, unsigned long start_addr,
unsigned long end_addr, int force)
{
int fd = mm->context.skas.mm_fd;
if(!proc_mm && (end_addr > CONFIG_STUB_START))
end_addr = CONFIG_STUB_START;
fix_range_common(mm, start_addr, end_addr, force, fd, do_ops);
fix_range_common(mm, start_addr, end_addr, force, do_ops);
}
void __flush_tlb_one_skas(unsigned long addr)
@ -69,17 +73,20 @@ void flush_tlb_range_skas(struct vm_area_struct *vma, unsigned long start,
void flush_tlb_mm_skas(struct mm_struct *mm)
{
unsigned long end;
/* Don't bother flushing if this address space is about to be
* destroyed.
*/
if(atomic_read(&mm->mm_users) == 0)
return;
fix_range(mm, 0, host_task_size, 0);
flush_tlb_kernel_range_common(start_vm, end_vm);
end = proc_mm ? task_size : CONFIG_STUB_START;
fix_range(mm, 0, end, 0);
}
void force_flush_all_skas(void)
{
fix_range(current->mm, 0, host_task_size, 1);
unsigned long end = proc_mm ? task_size : CONFIG_STUB_START;
fix_range(current->mm, 0, end, 1);
}

7
arch/um/kernel/time.c
View file

@ -48,6 +48,13 @@ void enable_timer(void)
set_interval(ITIMER_VIRTUAL);
}
void prepare_timer(void * ptr)
{
int usec = 1000000/hz();
*(struct itimerval *)ptr = ((struct itimerval) { { 0, usec },
{ 0, usec }});
}
void disable_timer(void)
{
struct itimerval disable = ((struct itimerval) { { 0, 0 }, { 0, 0 }});

132
arch/um/kernel/tlb.c
View file

@ -18,13 +18,15 @@
#define ADD_ROUND(n, inc) (((n) + (inc)) & ~((inc) - 1))
void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
unsigned long end_addr, int force, int data,
void (*do_ops)(int, struct host_vm_op *, int))
unsigned long end_addr, int force,
void (*do_ops)(union mm_context *, struct host_vm_op *,
int))
{
pgd_t *npgd;
pud_t *npud;
pmd_t *npmd;
pte_t *npte;
union mm_context *mmu = &mm->context;
unsigned long addr, end;
int r, w, x;
struct host_vm_op ops[16];
@ -40,7 +42,7 @@ void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
end = end_addr;
if(force || pgd_newpage(*npgd)){
op_index = add_munmap(addr, end - addr, ops,
op_index, last_op, data,
op_index, last_op, mmu,
do_ops);
pgd_mkuptodate(*npgd);
}
@ -55,7 +57,7 @@ void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
end = end_addr;
if(force || pud_newpage(*npud)){
op_index = add_munmap(addr, end - addr, ops,
op_index, last_op, data,
op_index, last_op, mmu,
do_ops);
pud_mkuptodate(*npud);
}
@ -70,7 +72,7 @@ void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
end = end_addr;
if(force || pmd_newpage(*npmd)){
op_index = add_munmap(addr, end - addr, ops,
op_index, last_op, data,
op_index, last_op, mmu,
do_ops);
pmd_mkuptodate(*npmd);
}
@ -93,21 +95,21 @@ void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
op_index = add_mmap(addr,
pte_val(*npte) & PAGE_MASK,
PAGE_SIZE, r, w, x, ops,
op_index, last_op, data,
op_index, last_op, mmu,
do_ops);
else op_index = add_munmap(addr, PAGE_SIZE, ops,
op_index, last_op, data,
op_index, last_op, mmu,
do_ops);
}
else if(pte_newprot(*npte))
op_index = add_mprotect(addr, PAGE_SIZE, r, w, x, ops,
op_index, last_op, data,
op_index, last_op, mmu,
do_ops);
*npte = pte_mkuptodate(*npte);
addr += PAGE_SIZE;
}
(*do_ops)(data, ops, op_index);
(*do_ops)(mmu, ops, op_index);
}
int flush_tlb_kernel_range_common(unsigned long start, unsigned long end)
@ -195,51 +197,6 @@ int flush_tlb_kernel_range_common(unsigned long start, unsigned long end)
return(updated);
}
void flush_tlb_page(struct vm_area_struct *vma, unsigned long address)
{
address &= PAGE_MASK;
flush_tlb_range(vma, address, address + PAGE_SIZE);
}
void flush_tlb_all(void)
{
flush_tlb_mm(current->mm);
}
void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
CHOOSE_MODE_PROC(flush_tlb_kernel_range_tt,
flush_tlb_kernel_range_common, start, end);
}
void flush_tlb_kernel_vm(void)
{
CHOOSE_MODE(flush_tlb_kernel_vm_tt(),
flush_tlb_kernel_range_common(start_vm, end_vm));
}
void __flush_tlb_one(unsigned long addr)
{
CHOOSE_MODE_PROC(__flush_tlb_one_tt, __flush_tlb_one_skas, addr);
}
void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end)
{
CHOOSE_MODE_PROC(flush_tlb_range_tt, flush_tlb_range_skas, vma, start,
end);
}
void flush_tlb_mm(struct mm_struct *mm)
{
CHOOSE_MODE_PROC(flush_tlb_mm_tt, flush_tlb_mm_skas, mm);
}
void force_flush_all(void)
{
CHOOSE_MODE(force_flush_all_tt(), force_flush_all_skas());
}
pgd_t *pgd_offset_proc(struct mm_struct *mm, unsigned long address)
{
return(pgd_offset(mm, address));
@ -270,9 +227,9 @@ pte_t *addr_pte(struct task_struct *task, unsigned long addr)
}
int add_mmap(unsigned long virt, unsigned long phys, unsigned long len,
int r, int w, int x, struct host_vm_op *ops, int index,
int last_filled, int data,
void (*do_ops)(int, struct host_vm_op *, int))
int r, int w, int x, struct host_vm_op *ops, int index,
int last_filled, union mm_context *mmu,
void (*do_ops)(union mm_context *, struct host_vm_op *, int))
{
__u64 offset;
struct host_vm_op *last;
@ -292,7 +249,7 @@ int add_mmap(unsigned long virt, unsigned long phys, unsigned long len,
}
if(index == last_filled){
(*do_ops)(data, ops, last_filled);
(*do_ops)(mmu, ops, last_filled);
index = -1;
}
@ -310,8 +267,8 @@ int add_mmap(unsigned long virt, unsigned long phys, unsigned long len,
}
int add_munmap(unsigned long addr, unsigned long len, struct host_vm_op *ops,
int index, int last_filled, int data,
void (*do_ops)(int, struct host_vm_op *, int))
int index, int last_filled, union mm_context *mmu,
void (*do_ops)(union mm_context *, struct host_vm_op *, int))
{
struct host_vm_op *last;
@ -325,7 +282,7 @@ int add_munmap(unsigned long addr, unsigned long len, struct host_vm_op *ops,
}
if(index == last_filled){
(*do_ops)(data, ops, last_filled);
(*do_ops)(mmu, ops, last_filled);
index = -1;
}
@ -337,8 +294,9 @@ int add_munmap(unsigned long addr, unsigned long len, struct host_vm_op *ops,
}
int add_mprotect(unsigned long addr, unsigned long len, int r, int w, int x,
struct host_vm_op *ops, int index, int last_filled, int data,
void (*do_ops)(int, struct host_vm_op *, int))
struct host_vm_op *ops, int index, int last_filled,
union mm_context *mmu,
void (*do_ops)(union mm_context *, struct host_vm_op *, int))
{
struct host_vm_op *last;
@ -354,7 +312,7 @@ int add_mprotect(unsigned long addr, unsigned long len, int r, int w, int x,
}
if(index == last_filled){
(*do_ops)(data, ops, last_filled);
(*do_ops)(mmu, ops, last_filled);
index = -1;
}
@ -367,3 +325,49 @@ int add_mprotect(unsigned long addr, unsigned long len, int r, int w, int x,
.x = x } } });
return(index);
}
void flush_tlb_page(struct vm_area_struct *vma, unsigned long address)
{
address &= PAGE_MASK;
flush_tlb_range(vma, address, address + PAGE_SIZE);
}
void flush_tlb_all(void)
{
flush_tlb_mm(current->mm);
}
void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
CHOOSE_MODE_PROC(flush_tlb_kernel_range_tt,
flush_tlb_kernel_range_common, start, end);
}
void flush_tlb_kernel_vm(void)
{
CHOOSE_MODE(flush_tlb_kernel_vm_tt(),
flush_tlb_kernel_range_common(start_vm, end_vm));
}
void __flush_tlb_one(unsigned long addr)
{
CHOOSE_MODE_PROC(__flush_tlb_one_tt, __flush_tlb_one_skas, addr);
}
void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end)
{
CHOOSE_MODE_PROC(flush_tlb_range_tt, flush_tlb_range_skas, vma, start,
end);
}
void flush_tlb_mm(struct mm_struct *mm)
{
CHOOSE_MODE_PROC(flush_tlb_mm_tt, flush_tlb_mm_skas, mm);
}
void force_flush_all(void)
{
CHOOSE_MODE(force_flush_all_tt(), force_flush_all_skas());
}

4
arch/um/kernel/tt/tlb.c
View file

@ -17,7 +17,7 @@
#include "os.h"
#include "tlb.h"
static void do_ops(int unused, struct host_vm_op *ops, int last)
static void do_ops(union mm_context *mmu, struct host_vm_op *ops, int last)
{
struct host_vm_op *op;
int i;
@ -55,7 +55,7 @@ static void fix_range(struct mm_struct *mm, unsigned long start_addr,
panic("fix_range fixing wrong address space, current = 0x%p",
current);
fix_range_common(mm, start_addr, end_addr, force, 0, do_ops);
fix_range_common(mm, start_addr, end_addr, force, do_ops);
}
atomic_t vmchange_seq = ATOMIC_INIT(1);

7
arch/um/kernel/uml.lds.S
View file

@ -30,6 +30,7 @@ SECTIONS
_einittext = .;
}
. = ALIGN(4096);
.text :
{
*(.text)
@ -39,6 +40,12 @@ SECTIONS
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t*)
. = ALIGN(4096);
__syscall_stub_start = .;
*(.__syscall_stub*)
__syscall_stub_end = .;
. = ALIGN(4096);
}
#include "asm/common.lds.S"

5
arch/um/os-Linux/sys-i386/registers.c
View file

@ -121,6 +121,11 @@ void init_registers(int pid)
err);
}
void get_safe_registers(unsigned long *regs)
{
memcpy(regs, exec_regs, HOST_FRAME_SIZE * sizeof(unsigned long));
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically

5
arch/um/os-Linux/sys-x86_64/registers.c
View file

@ -69,6 +69,11 @@ void init_registers(int pid)
err);
}
void get_safe_registers(unsigned long *regs)
{
memcpy(regs, exec_regs, HOST_FRAME_SIZE * sizeof(unsigned long));
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically

5
arch/um/scripts/Makefile.rules
View file

@ -16,6 +16,11 @@ define unprofile
endef
# The stubs and unmap.o can't try to call mcount or update basic block data
define unprofile
$(patsubst -pg,,$(patsubst -fprofile-arcs -ftest-coverage,,$(1)))
endef
quiet_cmd_make_link = SYMLINK $@
cmd_make_link = ln -sf $(srctree)/arch/$(SUBARCH)/$($(notdir $@)-dir)/$(notdir $@) $@

12
arch/um/sys-i386/Makefile
View file

@ -1,6 +1,6 @@
obj-y = bitops.o bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \
ptrace_user.o semaphore.o signal.o sigcontext.o syscalls.o sysrq.o \
sys_call_table.o
ptrace_user.o semaphore.o signal.o sigcontext.o stub.o stub_segv.o \
syscalls.o sysrq.o sys_call_table.o
obj-$(CONFIG_HIGHMEM) += highmem.o
obj-$(CONFIG_MODULES) += module.o
@ -16,6 +16,14 @@ semaphore.c-dir = kernel
highmem.c-dir = mm
module.c-dir = kernel
STUB_CFLAGS = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS))
# _cflags works with kernel files, not with userspace ones, but c_flags does,
# why ask why?
$(obj)/stub_segv.o : c_flags = $(STUB_CFLAGS)
$(obj)/stub.o : a_flags = $(STUB_CFLAGS)
subdir- := util
include arch/um/scripts/Makefile.unmap

8
arch/um/sys-i386/stub.S Normal file
View file

@ -0,0 +1,8 @@
#include "uml-config.h"
.globl syscall_stub
.section .__syscall_stub, "x"
syscall_stub:
int $0x80
mov %eax, UML_CONFIG_STUB_DATA
int3

30
arch/um/sys-i386/stub_segv.c Normal file
View file

@ -0,0 +1,30 @@
/*
* Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
* Licensed under the GPL
*/
#include <signal.h>
#include <asm/sigcontext.h>
#include <asm/unistd.h>
#include "uml-config.h"
#include "sysdep/sigcontext.h"
#include "sysdep/faultinfo.h"
void __attribute__ ((__section__ (".__syscall_stub")))
stub_segv_handler(int sig)
{
struct sigcontext *sc = (struct sigcontext *) (&sig + 1);
GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
sc);
__asm__("movl %0, %%eax ; int $0x80": : "g" (__NR_getpid));
__asm__("movl %%eax, %%ebx ; movl %0, %%eax ; movl %1, %%ecx ;"
"int $0x80": : "g" (__NR_kill), "g" (SIGUSR1));
/* Pop the frame pointer and return address since we need to leave
* the stack in its original form when we do the sigreturn here, by
* hand.
*/
__asm__("popl %%eax ; popl %%eax ; popl %%eax ; movl %0, %%eax ; "
"int $0x80" : : "g" (__NR_sigreturn));
}

12
arch/um/sys-x86_64/Makefile
View file

@ -6,8 +6,8 @@
#XXX: why into lib-y?
lib-y = bitops.o bugs.o csum-partial.o delay.o fault.o mem.o memcpy.o \
ptrace.o ptrace_user.o semaphore.o sigcontext.o signal.o \
syscalls.o sysrq.o thunk.o syscall_table.o
ptrace.o ptrace_user.o semaphore.o sigcontext.o signal.o stub.o \
stub_segv.o syscalls.o syscall_table.o sysrq.o thunk.o
obj-y := ksyms.o
obj-$(CONFIG_MODULES) += module.o um_module.o
@ -28,6 +28,14 @@ semaphore.c-dir = kernel
thunk.S-dir = lib
module.c-dir = kernel
STUB_CFLAGS = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS))
# _cflags works with kernel files, not with userspace ones, but c_flags does,
# why ask why?
$(obj)/stub_segv.o : c_flags = $(STUB_CFLAGS)
$(obj)/stub.o : a_flags = $(STUB_CFLAGS)
subdir- := util
include arch/um/scripts/Makefile.unmap

15
arch/um/sys-x86_64/stub.S Normal file
View file

@ -0,0 +1,15 @@
#include "uml-config.h"
.globl syscall_stub
.section .__syscall_stub, "x"
syscall_stub:
syscall
/* We don't have 64-bit constants, so this constructs the address
* we need.
*/
movq $(UML_CONFIG_STUB_DATA >> 32), %rbx
salq $32, %rbx
movq $(UML_CONFIG_STUB_DATA & 0xffffffff), %rcx
or %rcx, %rbx
movq %rax, (%rbx)
int3

31
arch/um/sys-x86_64/stub_segv.c Normal file
View file

@ -0,0 +1,31 @@
/*
* Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
* Licensed under the GPL
*/
#include <signal.h>
#include <linux/compiler.h>
#include <asm/unistd.h>
#include "uml-config.h"
#include "sysdep/sigcontext.h"
#include "sysdep/faultinfo.h"
void __attribute__ ((__section__ (".__syscall_stub")))
stub_segv_handler(int sig)
{
struct ucontext *uc;
__asm__("movq %%rdx, %0" : "=g" (uc) :);
GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
&uc->uc_mcontext);
__asm__("movq %0, %%rax ; syscall": : "g" (__NR_getpid));
__asm__("movq %%rax, %%rdi ; movq %0, %%rax ; movq %1, %%rsi ;"
"syscall": : "g" (__NR_kill), "g" (SIGUSR1));
/* Two popqs to restore the stack to the state just before entering
* the handler, one pops the return address, the other pops the frame
* pointer.
*/
__asm__("popq %%rax ; popq %%rax ; movq %0, %%rax ; syscall" : : "g"
(__NR_rt_sigreturn));
}

4
arch/x86_64/kernel/setup.c
View file

@ -1076,6 +1076,10 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
#ifdef CONFIG_X86_MCE
mcheck_init(c);
#endif
if (c == &boot_cpu_data)
mtrr_bp_init();
else
mtrr_ap_init();
#ifdef CONFIG_NUMA
if (c != &boot_cpu_data)
numa_add_cpu(c - cpu_data);

1
arch/x86_64/kernel/suspend.c
View file

@ -119,6 +119,7 @@ void __restore_processor_state(struct saved_context *ctxt)
fix_processor_context();
do_fpu_end();
mtrr_ap_init();
}
void restore_processor_state(void)

4
arch/x86_64/kernel/vmlinux.lds.S
View file

@ -56,6 +56,10 @@ SECTIONS
.data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
*(.data.cacheline_aligned)
}
. = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
*(.data.read_mostly)
}
#define VSYSCALL_ADDR (-10*1024*1024)
#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.cacheline_aligned) + SIZEOF(.data.cacheline_aligned) + 4095) & ~(4095))

152
arch/xtensa/kernel/syscalls.c
View file

@ -46,8 +46,6 @@
extern void do_syscall_trace(void);
typedef int (*syscall_t)(void *a0,...);
extern int (*do_syscalls)(struct pt_regs *regs, syscall_t fun,
int narg);
extern syscall_t sys_call_table[];
extern unsigned char sys_narg_table[];
@ -72,10 +70,8 @@ int sys_pipe(int __user *userfds)
/*
* Common code for old and new mmaps.
*/
static inline long do_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, unsigned long fd, unsigned long pgoff)
{
int error = -EBADF;
struct file * file = NULL;
@ -97,29 +93,6 @@ static inline long do_mmap2(unsigned long addr, unsigned long len,
return error;
}
unsigned long old_mmap(unsigned long addr, size_t len, int prot,
int flags, int fd, off_t offset)
{
return do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
}
long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, unsigned long fd, unsigned long pgoff)
{
return do_mmap2(addr, len, prot, flags, fd, pgoff);
}
int sys_fork(struct pt_regs *regs)
{
return do_fork(SIGCHLD, regs->areg[1], regs, 0, NULL, NULL);
}
int sys_vfork(struct pt_regs *regs)
{
return do_fork(CLONE_VFORK|CLONE_VM|SIGCHLD, regs->areg[1],
regs, 0, NULL, NULL);
}
int sys_clone(struct pt_regs *regs)
{
unsigned long clone_flags;
@ -162,30 +135,6 @@ int sys_uname(struct old_utsname * name)
return -EFAULT;
}
int sys_olduname(struct oldold_utsname * name)
{
int error;
if (!name)
return -EFAULT;
if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
return -EFAULT;
error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
error -= __put_user(0,name->release+__OLD_UTS_LEN);
error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
error -= __put_user(0,name->version+__OLD_UTS_LEN);
error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
error -= __put_user(0,name->machine+__OLD_UTS_LEN);
return error ? -EFAULT : 0;
}
/*
* Build the string table for the builtin "poor man's strace".
*/
@ -319,100 +268,3 @@ void system_call (struct pt_regs *regs)
regs->areg[2] = res;
do_syscall_trace();
}
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly.
*/
int sys_ipc (uint call, int first, int second,
int third, void __user *ptr, long fifth)
{
int version, ret;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
ret = -ENOSYS;
switch (call) {
case SEMOP:
ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
second, NULL);
break;
case SEMTIMEDOP:
ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
second, (const struct timespec *) fifth);
break;
case SEMGET:
ret = sys_semget (first, second, third);
break;
case SEMCTL: {
union semun fourth;
if (ptr && !get_user(fourth.__pad, (void *__user *) ptr))
ret = sys_semctl (first, second, third, fourth);
break;
}
case MSGSND:
ret = sys_msgsnd (first, (struct msgbuf __user*) ptr,
second, third);
break;
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
if (ptr && !copy_from_user(&tmp,
(struct ipc_kludge *) ptr,
sizeof (tmp)))
ret = sys_msgrcv (first, tmp.msgp, second,
tmp.msgtyp, third);
break;
}
default:
ret = sys_msgrcv (first, (struct msgbuf __user *) ptr,
second, 0, third);
break;
}
break;
case MSGGET:
ret = sys_msgget ((key_t) first, second);
break;
case MSGCTL:
ret = sys_msgctl (first, second, (struct msqid_ds __user*) ptr);
break;
case SHMAT: {
ulong raddr;
ret = do_shmat (first, (char __user *) ptr, second, &raddr);
if (!ret)
ret = put_user (raddr, (ulong __user *) third);
break;
}
case SHMDT:
ret = sys_shmdt ((char __user *)ptr);
break;
case SHMGET:
ret = sys_shmget (first, second, third);
break;
case SHMCTL:
ret = sys_shmctl (first, second, (struct shmid_ds __user*) ptr);
break;
}
return ret;
}

57
arch/xtensa/kernel/syscalls.h
View file

@ -25,20 +25,19 @@
*/
SYSCALL(0, 0) /* 00 */
SYSCALL(sys_exit, 1)
SYSCALL(sys_fork, 0)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_read, 3)
SYSCALL(sys_write, 3)
SYSCALL(sys_open, 3) /* 05 */
SYSCALL(sys_close, 1)
SYSCALL(sys_waitpid, 3)
SYSCALL(sys_ni_syscall, 3)
SYSCALL(sys_creat, 2)
SYSCALL(sys_link, 2)
SYSCALL(sys_unlink, 1) /* 10 */
SYSCALL(sys_execve, 0)
SYSCALL(sys_chdir, 1)
SYSCALL(sys_time, 1)
SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_mknod, 3)
SYSCALL(sys_chmod, 2) /* 15 */
SYSCALL(sys_lchown, 3)
@ -47,19 +46,19 @@ SYSCALL(sys_stat, 2)
SYSCALL(sys_lseek, 3)
SYSCALL(sys_getpid, 0) /* 20 */
SYSCALL(sys_mount, 5)
SYSCALL(sys_oldumount, 1)
SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_setuid, 1)
SYSCALL(sys_getuid, 0)
SYSCALL(sys_stime, 1) /* 25 */
SYSCALL(sys_ni_syscall, 1) /* 25 */
SYSCALL(sys_ptrace, 4)
SYSCALL(sys_alarm, 1)
SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_fstat, 2)
SYSCALL(sys_pause, 0)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_utime, 2) /* 30 */
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_access, 2)
SYSCALL(sys_nice, 1)
SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_ni_syscall, 0) /* 35 */
SYSCALL(sys_sync, 0)
SYSCALL(sys_kill, 2)
@ -73,7 +72,7 @@ SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_brk, 1) /* 45 */
SYSCALL(sys_setgid, 1)
SYSCALL(sys_getgid, 0)
SYSCALL(sys_ni_syscall, 0) /* was signal(2) */
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_geteuid, 0)
SYSCALL(sys_getegid, 0) /* 50 */
SYSCALL(sys_acct, 1)
@ -84,21 +83,21 @@ SYSCALL(sys_fcntl, 3) /* 55 */
SYSCALL(sys_ni_syscall, 2)
SYSCALL(sys_setpgid, 2)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_olduname, 1)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_umask, 1) /* 60 */
SYSCALL(sys_chroot, 1)
SYSCALL(sys_ustat, 2)
SYSCALL(sys_dup2, 2)
SYSCALL(sys_getppid, 0)
SYSCALL(sys_getpgrp, 0) /* 65 */
SYSCALL(sys_ni_syscall, 0) /* 65 */
SYSCALL(sys_setsid, 0)
SYSCALL(sys_sigaction, 3)
SYSCALL(sys_sgetmask, 0)
SYSCALL(sys_ssetmask, 1)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_setreuid, 2) /* 70 */
SYSCALL(sys_setregid, 2)
SYSCALL(sys_sigsuspend, 0)
SYSCALL(sys_sigpending, 1)
SYSCALL(sys_ni_syscall, 1)
SYSCALL(sys_sethostname, 2)
SYSCALL(sys_setrlimit, 2) /* 75 */
SYSCALL(sys_getrlimit, 2)
@ -107,15 +106,15 @@ SYSCALL(sys_gettimeofday, 2)
SYSCALL(sys_settimeofday, 2)
SYSCALL(sys_getgroups, 2) /* 80 */
SYSCALL(sys_setgroups, 2)
SYSCALL(sys_ni_syscall, 0) /* old_select */
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_symlink, 2)
SYSCALL(sys_lstat, 2)
SYSCALL(sys_readlink, 3) /* 85 */
SYSCALL(sys_uselib, 1)
SYSCALL(sys_swapon, 2)
SYSCALL(sys_reboot, 3)
SYSCALL(old_readdir, 3)
SYSCALL(old_mmap, 6) /* 90 */
SYSCALL(sys_ni_syscall, 3)
SYSCALL(sys_ni_syscall, 6) /* 90 */
SYSCALL(sys_munmap, 2)
SYSCALL(sys_truncate, 2)
SYSCALL(sys_ftruncate, 2)
@ -127,7 +126,7 @@ SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_statfs, 2)
SYSCALL(sys_fstatfs, 2) /* 100 */
SYSCALL(sys_ni_syscall, 3)
SYSCALL(sys_socketcall, 2)
SYSCALL(sys_ni_syscall, 2)
SYSCALL(sys_syslog, 3)
SYSCALL(sys_setitimer, 3)
SYSCALL(sys_getitimer, 2) /* 105 */
@ -137,32 +136,32 @@ SYSCALL(sys_newfstat, 2)
SYSCALL(sys_uname, 1)
SYSCALL(sys_ni_syscall, 0) /* 110 */
SYSCALL(sys_vhangup, 0)
SYSCALL(sys_ni_syscall, 0) /* was sys_idle() */
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_wait4, 4)
SYSCALL(sys_swapoff, 1) /* 115 */
SYSCALL(sys_sysinfo, 1)
SYSCALL(sys_ipc, 5) /* 6 really, but glibc uses only 5) */
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_fsync, 1)
SYSCALL(sys_sigreturn, 0)
SYSCALL(sys_clone, 0) /* 120 */
SYSCALL(sys_setdomainname, 2)
SYSCALL(sys_newuname, 1)
SYSCALL(sys_ni_syscall, 0) /* sys_modify_ldt */
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_adjtimex, 1)
SYSCALL(sys_mprotect, 3) /* 125 */
SYSCALL(sys_sigprocmask, 3)
SYSCALL(sys_ni_syscall, 2) /* old sys_create_module */
SYSCALL(sys_ni_syscall, 3)
SYSCALL(sys_ni_syscall, 2)
SYSCALL(sys_init_module, 2)
SYSCALL(sys_delete_module, 1)
SYSCALL(sys_ni_syscall, 1) /* old sys_get_kernel_sysm */ /* 130 */
SYSCALL(sys_ni_syscall, 1) /* 130 */
SYSCALL(sys_quotactl, 0)
SYSCALL(sys_getpgid, 1)
SYSCALL(sys_fchdir, 1)
SYSCALL(sys_bdflush, 2)
SYSCALL(sys_sysfs, 3) /* 135 */
SYSCALL(sys_personality, 1)
SYSCALL(sys_ni_syscall, 0) /* for afs_syscall */
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_setfsuid, 1)
SYSCALL(sys_setfsgid, 1)
SYSCALL(sys_llseek, 5) /* 140 */
@ -212,7 +211,7 @@ SYSCALL(sys_socket, 3)
SYSCALL(sys_socketpair, 4)
SYSCALL(sys_setresuid, 3) /* 185 */
SYSCALL(sys_getresuid, 3)
SYSCALL(sys_ni_syscall, 5) /* old sys_query_module */
SYSCALL(sys_ni_syscall, 5)
SYSCALL(sys_poll, 3)
SYSCALL(sys_nfsservctl, 3)
SYSCALL(sys_setresgid, 3) /* 190 */
@ -235,7 +234,7 @@ SYSCALL(sys_sigaltstack, 0)
SYSCALL(sys_sendfile, 4)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_ni_syscall, 0)
SYSCALL(sys_mmap2, 6) /* 210 */
SYSCALL(sys_mmap, 6) /* 210 */
SYSCALL(sys_truncate64, 2)
SYSCALL(sys_ftruncate64, 2)
SYSCALL(sys_stat64, 2)
@ -245,4 +244,4 @@ SYSCALL(sys_pivot_root, 2)
SYSCALL(sys_mincore, 3)
SYSCALL(sys_madvise, 3)
SYSCALL(sys_getdents64, 3)
SYSCALL(sys_vfork, 0) /* 220 */
SYSCALL(sys_ni_syscall, 0) /* 220 */

7
drivers/bluetooth/bluecard_cs.c
View file

@ -40,7 +40,6 @@
#include <linux/skbuff.h>
#include <asm/io.h>
#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
@ -895,11 +894,6 @@ static dev_link_t *bluecard_attach(void)
link->next = dev_list;
dev_list = link;
client_reg.dev_info = &dev_info;
client_reg.EventMask =
CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
client_reg.event_handler = &bluecard_event;
client_reg.Version = 0x0210;
client_reg.event_callback_args.client_data = link;
@ -1103,6 +1097,7 @@ static struct pcmcia_driver bluecard_driver = {
.name = "bluecard_cs",
},
.attach = bluecard_attach,
.event = bluecard_event,
.detach = bluecard_detach,
.id_table = bluecard_ids,
};

7
drivers/bluetooth/bt3c_cs.c
View file

@ -47,7 +47,6 @@
#include <linux/device.h>
#include <linux/firmware.h>
#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
@ -696,11 +695,6 @@ static dev_link_t *bt3c_attach(void)
link->next = dev_list;
dev_list = link;
client_reg.dev_info = &dev_info;
client_reg.EventMask =
CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
client_reg.event_handler = &bt3c_event;
client_reg.Version = 0x0210;
client_reg.event_callback_args.client_data = link;
@ -947,6 +941,7 @@ static struct pcmcia_driver bt3c_driver = {
.name = "bt3c_cs",
},
.attach = bt3c_attach,
.event = bt3c_event,
.detach = bt3c_detach,
.id_table = bt3c_ids,
};

7
drivers/bluetooth/btuart_cs.c
View file

@ -43,7 +43,6 @@
#include <asm/system.h>
#include <asm/io.h>
#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
@ -615,11 +614,6 @@ static dev_link_t *btuart_attach(void)
link->next = dev_list;
dev_list = link;
client_reg.dev_info = &dev_info;
client_reg.EventMask =
CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
client_reg.event_handler = &btuart_event;
client_reg.Version = 0x0210;
client_reg.event_callback_args.client_data = link;
@ -867,6 +861,7 @@ static struct pcmcia_driver btuart_driver = {
.name = "btuart_cs",
},
.attach = btuart_attach,
.event = btuart_event,
.detach = btuart_detach,
.id_table = btuart_ids,
};

7
drivers/bluetooth/dtl1_cs.c
View file

@ -43,7 +43,6 @@
#include <asm/system.h>
#include <asm/io.h>
#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
@ -594,11 +593,6 @@ static dev_link_t *dtl1_attach(void)
link->next = dev_list;
dev_list = link;
client_reg.dev_info = &dev_info;
client_reg.EventMask =
CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
client_reg.event_handler = &dtl1_event;
client_reg.Version = 0x0210;
client_reg.event_callback_args.client_data = link;
@ -820,6 +814,7 @@ static struct pcmcia_driver dtl1_driver = {
.name = "dtl1_cs",
},
.attach = dtl1_attach,
.event = dtl1_event,
.detach = dtl1_detach,
.id_table = dtl1_ids,
};

2
drivers/char/Makefile
View file

@ -40,7 +40,7 @@ obj-$(CONFIG_N_HDLC) += n_hdlc.o
obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o
obj-$(CONFIG_SX) += sx.o generic_serial.o
obj-$(CONFIG_RIO) += rio/ generic_serial.o
obj-$(CONFIG_HVC_CONSOLE) += hvc_console.o hvsi.o
obj-$(CONFIG_HVC_CONSOLE) += hvc_console.o hvc_vio.o hvsi.o
obj-$(CONFIG_RAW_DRIVER) += raw.o
obj-$(CONFIG_SGI_SNSC) += snsc.o snsc_event.o
obj-$(CONFIG_MMTIMER) += mmtimer.o

435
drivers/char/hvc_console.c
View file

@ -22,6 +22,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/config.h>
#include <linux/console.h>
#include <linux/cpumask.h>
#include <linux/init.h>
@ -40,7 +41,6 @@
#include <linux/delay.h>
#include <asm/uaccess.h>
#include <asm/hvconsole.h>
#include <asm/vio.h>
#define HVC_MAJOR 229
#define HVC_MINOR 0
@ -61,16 +61,21 @@
*/
#define HVC_ALLOC_TTY_ADAPTERS 8
static struct tty_driver *hvc_driver;
#ifdef CONFIG_MAGIC_SYSRQ
static int sysrq_pressed;
#endif
#define N_OUTBUF 16
#define N_INBUF 16
#define __ALIGNED__ __attribute__((__aligned__(8)))
static struct tty_driver *hvc_driver;
static struct task_struct *hvc_task;
/* Picks up late kicks after list walk but before schedule() */
static int hvc_kicked;
#ifdef CONFIG_MAGIC_SYSRQ
static int sysrq_pressed;
#endif
struct hvc_struct {
spinlock_t lock;
int index;
@ -80,11 +85,11 @@ struct hvc_struct {
char outbuf[N_OUTBUF] __ALIGNED__;
int n_outbuf;
uint32_t vtermno;
struct hv_ops *ops;
int irq_requested;
int irq;
struct list_head next;
struct kobject kobj; /* ref count & hvc_struct lifetime */
struct vio_dev *vdev;
};
/* dynamic list of hvc_struct instances */
@ -97,48 +102,11 @@ static struct list_head hvc_structs = LIST_HEAD_INIT(hvc_structs);
static DEFINE_SPINLOCK(hvc_structs_lock);
/*
* Initial console vtermnos for console API usage prior to full console
* initialization. Any vty adapter outside this range will not have usable
* console interfaces but can still be used as a tty device. This has to be
* static because kmalloc will not work during early console init.
* This value is used to assign a tty->index value to a hvc_struct based
* upon order of exposure via hvc_probe(), when we can not match it to
* a console canidate registered with hvc_instantiate().
*/
static uint32_t vtermnos[MAX_NR_HVC_CONSOLES];
/* Used for accounting purposes */
static int num_vterms = 0;
static struct task_struct *hvc_task;
/*
* This value is used to associate a tty->index value to a hvc_struct based
* upon order of exposure via hvc_probe().
*/
static int hvc_count = -1;
/* Picks up late kicks after list walk but before schedule() */
static int hvc_kicked;
/* Wake the sleeping khvcd */
static void hvc_kick(void)
{
hvc_kicked = 1;
wake_up_process(hvc_task);
}
/*
* NOTE: This API isn't used if the console adapter doesn't support interrupts.
* In this case the console is poll driven.
*/
static irqreturn_t hvc_handle_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
{
hvc_kick();
return IRQ_HANDLED;
}
static void hvc_unthrottle(struct tty_struct *tty)
{
hvc_kick();
}
static int last_hvc = -1;
/*
* Do not call this function with either the hvc_strucst_lock or the hvc_struct
@ -168,6 +136,178 @@ struct hvc_struct *hvc_get_by_index(int index)
return hp;
}
/*
* Initial console vtermnos for console API usage prior to full console
* initialization. Any vty adapter outside this range will not have usable
* console interfaces but can still be used as a tty device. This has to be
* static because kmalloc will not work during early console init.
*/
static struct hv_ops *cons_ops[MAX_NR_HVC_CONSOLES];
static uint32_t vtermnos[MAX_NR_HVC_CONSOLES] =
{[0 ... MAX_NR_HVC_CONSOLES - 1] = -1};
/*
* Console APIs, NOT TTY. These APIs are available immediately when
* hvc_console_setup() finds adapters.
*/
void hvc_console_print(struct console *co, const char *b, unsigned count)
{
char c[16] __ALIGNED__;
unsigned i = 0, n = 0;
int r, donecr = 0, index = co->index;
/* Console access attempt outside of acceptable console range. */
if (index >= MAX_NR_HVC_CONSOLES)
return;
/* This console adapter was removed so it is not useable. */
if (vtermnos[index] < 0)
return;
while (count > 0 || i > 0) {
if (count > 0 && i < sizeof(c)) {
if (b[n] == '\n' && !donecr) {
c[i++] = '\r';
donecr = 1;
} else {
c[i++] = b[n++];
donecr = 0;
--count;
}
} else {
r = cons_ops[index]->put_chars(vtermnos[index], c, i);
if (r < 0) {
/* throw away chars on error */
i = 0;
} else if (r > 0) {
i -= r;
if (i > 0)
memmove(c, c+r, i);
}
}
}
}
static struct tty_driver *hvc_console_device(struct console *c, int *index)
{
if (vtermnos[c->index] == -1)
return NULL;
*index = c->index;
return hvc_driver;
}
static int __init hvc_console_setup(struct console *co, char *options)
{
if (co->index < 0 || co->index >= MAX_NR_HVC_CONSOLES)
return -ENODEV;
if (vtermnos[co->index] == -1)
return -ENODEV;
return 0;
}
struct console hvc_con_driver = {
.name = "hvc",
.write = hvc_console_print,
.device = hvc_console_device,
.setup = hvc_console_setup,
.flags = CON_PRINTBUFFER,
.index = -1,
};
/*
* Early console initialization. Preceeds driver initialization.
*
* (1) we are first, and the user specified another driver
* -- index will remain -1
* (2) we are first and the user specified no driver
* -- index will be set to 0, then we will fail setup.
* (3) we are first and the user specified our driver
* -- index will be set to user specified driver, and we will fail
* (4) we are after driver, and this initcall will register us
* -- if the user didn't specify a driver then the console will match
*
* Note that for cases 2 and 3, we will match later when the io driver
* calls hvc_instantiate() and call register again.
*/
static int __init hvc_console_init(void)
{
register_console(&hvc_con_driver);
return 0;
}
console_initcall(hvc_console_init);
/*
* hvc_instantiate() is an early console discovery method which locates
* consoles * prior to the vio subsystem discovering them. Hotplugged
* vty adapters do NOT get an hvc_instantiate() callback since they
* appear after early console init.
*/
int hvc_instantiate(uint32_t vtermno, int index, struct hv_ops *ops)
{
struct hvc_struct *hp;
if (index < 0 || index >= MAX_NR_HVC_CONSOLES)
return -1;
if (vtermnos[index] != -1)
return -1;
/* make sure no no tty has been registerd in this index */
hp = hvc_get_by_index(index);
if (hp) {
kobject_put(&hp->kobj);
return -1;
}
vtermnos[index] = vtermno;
cons_ops[index] = ops;
/* reserve all indices upto and including this index */
if (last_hvc < index)
last_hvc = index;
/* if this index is what the user requested, then register
* now (setup won't fail at this point). It's ok to just
* call register again if previously .setup failed.
*/
if (index == hvc_con_driver.index)
register_console(&hvc_con_driver);
return 0;
}
EXPORT_SYMBOL(hvc_instantiate);
/* Wake the sleeping khvcd */
static void hvc_kick(void)
{
hvc_kicked = 1;
wake_up_process(hvc_task);
}
static int hvc_poll(struct hvc_struct *hp);
/*
* NOTE: This API isn't used if the console adapter doesn't support interrupts.
* In this case the console is poll driven.
*/
static irqreturn_t hvc_handle_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
{
/* if hvc_poll request a repoll, then kick the hvcd thread */
if (hvc_poll(dev_instance))
hvc_kick();
return IRQ_HANDLED;
}
static void hvc_unthrottle(struct tty_struct *tty)
{
hvc_kick();
}
/*
* The TTY interface won't be used until after the vio layer has exposed the vty
* adapter to the kernel.
@ -329,7 +469,7 @@ static void hvc_push(struct hvc_struct *hp)
{
int n;
n = hvc_put_chars(hp->vtermno, hp->outbuf, hp->n_outbuf);
n = hp->ops->put_chars(hp->vtermno, hp->outbuf, hp->n_outbuf);
if (n <= 0) {
if (n == 0)
return;
@ -467,7 +607,7 @@ static int hvc_poll(struct hvc_struct *hp)
break;
}
n = hvc_get_chars(hp->vtermno, buf, count);
n = hp->ops->get_chars(hp->vtermno, buf, count);
if (n <= 0) {
/* Hangup the tty when disconnected from host */
if (n == -EPIPE) {
@ -479,14 +619,17 @@ static int hvc_poll(struct hvc_struct *hp)
}
for (i = 0; i < n; ++i) {
#ifdef CONFIG_MAGIC_SYSRQ
/* Handle the SysRq Hack */
if (buf[i] == '\x0f') { /* ^O -- should support a sequence */
sysrq_pressed = 1;
continue;
} else if (sysrq_pressed) {
handle_sysrq(buf[i], NULL, tty);
sysrq_pressed = 0;
continue;
if (hp->index == hvc_con_driver.index) {
/* Handle the SysRq Hack */
/* XXX should support a sequence */
if (buf[i] == '\x0f') { /* ^O */
sysrq_pressed = 1;
continue;
} else if (sysrq_pressed) {
handle_sysrq(buf[i], NULL, tty);
sysrq_pressed = 0;
continue;
}
}
#endif /* CONFIG_MAGIC_SYSRQ */
tty_insert_flip_char(tty, buf[i], 0);
@ -497,8 +640,8 @@ static int hvc_poll(struct hvc_struct *hp)
/*
* Account for the total amount read in one loop, and if above
* 64 bytes, we do a quick schedule loop to let the tty grok the
* data and eventually throttle us.
* 64 bytes, we do a quick schedule loop to let the tty grok
* the data and eventually throttle us.
*/
read_total += n;
if (read_total >= 64) {
@ -542,7 +685,6 @@ int khvcd(void *unused)
if (cpus_empty(cpus_in_xmon)) {
spin_lock(&hvc_structs_lock);
list_for_each_entry(hp, &hvc_structs, next) {
/*hp = list_entry(node, struct hvc_struct, * next); */
poll_mask |= hvc_poll(hp);
}
spin_unlock(&hvc_structs_lock);
@ -577,14 +719,6 @@ static struct tty_operations hvc_ops = {
.chars_in_buffer = hvc_chars_in_buffer,
};
char hvc_driver_name[] = "hvc_console";
static struct vio_device_id hvc_driver_table[] __devinitdata= {
{"serial", "hvterm1"},
{ NULL, }
};
MODULE_DEVICE_TABLE(vio, hvc_driver_table);
/* callback when the kboject ref count reaches zero. */
static void destroy_hvc_struct(struct kobject *kobj)
{
@ -606,41 +740,51 @@ static struct kobj_type hvc_kobj_type = {
.release = destroy_hvc_struct,
};
static int __devinit hvc_probe(
struct vio_dev *dev,
const struct vio_device_id *id)
struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq,
struct hv_ops *ops)
{
struct hvc_struct *hp;
/* probed with invalid parameters. */
if (!dev || !id)
return -EPERM;
int i;
hp = kmalloc(sizeof(*hp), GFP_KERNEL);
if (!hp)
return -ENOMEM;
return ERR_PTR(-ENOMEM);
memset(hp, 0x00, sizeof(*hp));
hp->vtermno = dev->unit_address;
hp->vdev = dev;
hp->vdev->dev.driver_data = hp;
hp->irq = dev->irq;
hp->vtermno = vtermno;
hp->irq = irq;
hp->ops = ops;
kobject_init(&hp->kobj);
hp->kobj.ktype = &hvc_kobj_type;
spin_lock_init(&hp->lock);
spin_lock(&hvc_structs_lock);
hp->index = ++hvc_count;
/*
* find index to use:
* see if this vterm id matches one registered for console.
*/
for (i=0; i < MAX_NR_HVC_CONSOLES; i++)
if (vtermnos[i] == hp->vtermno)
break;
/* no matching slot, just use a counter */
if (i >= MAX_NR_HVC_CONSOLES)
i = ++last_hvc;
hp->index = i;
list_add_tail(&(hp->next), &hvc_structs);
spin_unlock(&hvc_structs_lock);
return 0;
return hp;
}
EXPORT_SYMBOL(hvc_alloc);
static int __devexit hvc_remove(struct vio_dev *dev)
int __devexit hvc_remove(struct hvc_struct *hp)
{
struct hvc_struct *hp = dev->dev.driver_data;
unsigned long flags;
struct kobject *kobjp;
struct tty_struct *tty;
@ -673,23 +817,14 @@ static int __devexit hvc_remove(struct vio_dev *dev)
tty_hangup(tty);
return 0;
}
static struct vio_driver hvc_vio_driver = {
.name = hvc_driver_name,
.id_table = hvc_driver_table,
.probe = hvc_probe,
.remove = hvc_remove,
};
EXPORT_SYMBOL(hvc_remove);
/* Driver initialization. Follow console initialization. This is where the TTY
* interfaces start to become available. */
int __init hvc_init(void)
{
int rc;
/* We need more than num_vterms adapters due to hotplug additions. */
/* We need more than hvc_count adapters due to hotplug additions. */
hvc_driver = alloc_tty_driver(HVC_ALLOC_TTY_ADAPTERS);
/* hvc_driver = alloc_tty_driver(num_vterms); */
if (!hvc_driver)
return -ENOMEM;
@ -716,116 +851,20 @@ int __init hvc_init(void)
return -EIO;
}
/* Register as a vio device to receive callbacks */
rc = vio_register_driver(&hvc_vio_driver);
return rc;
return 0;
}
module_init(hvc_init);
/* This isn't particularily necessary due to this being a console driver but it
* is nice to be thorough */
/* This isn't particularily necessary due to this being a console driver
* but it is nice to be thorough.
*/
static void __exit hvc_exit(void)
{
kthread_stop(hvc_task);
vio_unregister_driver(&hvc_vio_driver);
tty_unregister_driver(hvc_driver);
/* return tty_struct instances allocated in hvc_init(). */
put_tty_driver(hvc_driver);
unregister_console(&hvc_con_driver);
}
/*
* Console APIs, NOT TTY. These APIs are available immediately when
* hvc_console_setup() finds adapters.
*/
/*
* hvc_instantiate() is an early console discovery method which locates consoles
* prior to the vio subsystem discovering them. Hotplugged vty adapters do NOT
* get an hvc_instantiate() callback since the appear after early console init.
*/
int hvc_instantiate(uint32_t vtermno, int index)
{
if (index < 0 || index >= MAX_NR_HVC_CONSOLES)
return -1;
if (vtermnos[index] != -1)
return -1;
vtermnos[index] = vtermno;
return 0;
}
void hvc_console_print(struct console *co, const char *b, unsigned count)
{
char c[16] __ALIGNED__;
unsigned i = 0, n = 0;
int r, donecr = 0;
/* Console access attempt outside of acceptable console range. */
if (co->index >= MAX_NR_HVC_CONSOLES)
return;
/* This console adapter was removed so it is not useable. */
if (vtermnos[co->index] < 0)
return;
while (count > 0 || i > 0) {
if (count > 0 && i < sizeof(c)) {
if (b[n] == '\n' && !donecr) {
c[i++] = '\r';
donecr = 1;
} else {
c[i++] = b[n++];
donecr = 0;
--count;
}
} else {
r = hvc_put_chars(vtermnos[co->index], c, i);
if (r < 0) {
/* throw away chars on error */
i = 0;
} else if (r > 0) {
i -= r;
if (i > 0)
memmove(c, c+r, i);
}
}
}
}
static struct tty_driver *hvc_console_device(struct console *c, int *index)
{
*index = c->index;
return hvc_driver;
}
static int __init hvc_console_setup(struct console *co, char *options)
{
return 0;
}
struct console hvc_con_driver = {
.name = "hvc",
.write = hvc_console_print,
.device = hvc_console_device,
.setup = hvc_console_setup,
.flags = CON_PRINTBUFFER,
.index = -1,
};
/* Early console initialization. Preceeds driver initialization. */
static int __init hvc_console_init(void)
{
int i;
for (i=0; i<MAX_NR_HVC_CONSOLES; i++)
vtermnos[i] = -1;
num_vterms = hvc_find_vtys();
register_console(&hvc_con_driver);
return 0;
}
console_initcall(hvc_console_init);
module_init(hvc_init);
module_exit(hvc_exit);

152
drivers/char/hvc_vio.c Normal file
View file

@ -0,0 +1,152 @@
/*
* vio driver interface to hvc_console.c
*
* This code was moved here to allow the remaing code to be reused as a
* generic polling mode with semi-reliable transport driver core to the
* console and tty subsystems.
*
*
* Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM
* Copyright (C) 2001 Paul Mackerras <paulus@au.ibm.com>, IBM
* Copyright (C) 2004 Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp.
* Copyright (C) 2004 IBM Corporation
*
* Additional Author(s):
* Ryan S. Arnold <rsa@us.ibm.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/types.h>
#include <linux/init.h>
#include <asm/hvconsole.h>
#include <asm/vio.h>
#include <asm/prom.h>
char hvc_driver_name[] = "hvc_console";
static struct vio_device_id hvc_driver_table[] __devinitdata = {
{"serial", "hvterm1"},
{ NULL, }
};
MODULE_DEVICE_TABLE(vio, hvc_driver_table);
static int filtered_get_chars(uint32_t vtermno, char *buf, int count)
{
unsigned long got;
int i;
got = hvc_get_chars(vtermno, buf, count);
/*
* Work around a HV bug where it gives us a null
* after every \r. -- paulus
*/
for (i = 1; i < got; ++i) {
if (buf[i] == 0 && buf[i-1] == '\r') {
--got;
if (i < got)
memmove(&buf[i], &buf[i+1],
got - i);
}
}
return got;
}
static struct hv_ops hvc_get_put_ops = {
.get_chars = filtered_get_chars,
.put_chars = hvc_put_chars,
};
static int __devinit hvc_vio_probe(struct vio_dev *vdev,
const struct vio_device_id *id)
{
struct hvc_struct *hp;
/* probed with invalid parameters. */
if (!vdev || !id)
return -EPERM;
hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops);
if (IS_ERR(hp))
return PTR_ERR(hp);
dev_set_drvdata(&vdev->dev, hp);
return 0;
}
static int __devexit hvc_vio_remove(struct vio_dev *vdev)
{
struct hvc_struct *hp = dev_get_drvdata(&vdev->dev);
return hvc_remove(hp);
}
static struct vio_driver hvc_vio_driver = {
.name = hvc_driver_name,
.id_table = hvc_driver_table,
.probe = hvc_vio_probe,
.remove = hvc_vio_remove,
.driver = {
.owner = THIS_MODULE,
}
};
static int hvc_vio_init(void)
{
int rc;
/* Register as a vio device to receive callbacks */
rc = vio_register_driver(&hvc_vio_driver);
return rc;
}
module_init(hvc_vio_init); /* after drivers/char/hvc_console.c */
static void hvc_vio_exit(void)
{
vio_unregister_driver(&hvc_vio_driver);
}
module_exit(hvc_vio_exit);
/* the device tree order defines our numbering */
static int hvc_find_vtys(void)
{
struct device_node *vty;
int num_found = 0;
for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL;
vty = of_find_node_by_name(vty, "vty")) {
uint32_t *vtermno;
/* We have statically defined space for only a certain number
* of console adapters.
*/
if (num_found >= MAX_NR_HVC_CONSOLES)
break;
vtermno = (uint32_t *)get_property(vty, "reg", NULL);
if (!vtermno)
continue;
if (device_is_compatible(vty, "hvterm1")) {
hvc_instantiate(*vtermno, num_found, &hvc_get_put_ops);
++num_found;
}
}
return num_found;
}
console_initcall(hvc_find_vtys);

8
drivers/char/hvsi.c
View file

@ -291,15 +291,13 @@ static void dump_packet(uint8_t *packet)
dump_hex(packet, header->len);
}
/* can't use hvc_get_chars because that strips CRs */
static int hvsi_read(struct hvsi_struct *hp, char *buf, int count)
{
unsigned long got;
if (plpar_hcall(H_GET_TERM_CHAR, hp->vtermno, 0, 0, 0, &got,
(unsigned long *)buf, (unsigned long *)buf+1) == H_Success)
return got;
return 0;
got = hvc_get_chars(hp->vtermno, buf, count);
return got;
}
static void hvsi_recv_control(struct hvsi_struct *hp, uint8_t *packet,

33
drivers/char/n_tty.c
View file

@ -770,10 +770,8 @@ static inline void n_tty_receive_char(struct tty_struct *tty, unsigned char c)
}
if (c == '\n') {
if (L_ECHO(tty) || L_ECHONL(tty)) {
if (tty->read_cnt >= N_TTY_BUF_SIZE-1) {
if (tty->read_cnt >= N_TTY_BUF_SIZE-1)
put_char('\a', tty);
return;
}
opost('\n', tty);
}
goto handle_newline;
@ -790,10 +788,8 @@ static inline void n_tty_receive_char(struct tty_struct *tty, unsigned char c)
* XXX are EOL_CHAR and EOL2_CHAR echoed?!?
*/
if (L_ECHO(tty)) {
if (tty->read_cnt >= N_TTY_BUF_SIZE-1) {
if (tty->read_cnt >= N_TTY_BUF_SIZE-1)
put_char('\a', tty);
return;
}
/* Record the column of first canon char. */
if (tty->canon_head == tty->read_head)
tty->canon_column = tty->column;
@ -862,12 +858,9 @@ static int n_tty_receive_room(struct tty_struct *tty)
* that erase characters will be handled. Other excess
* characters will be beeped.
*/
if (tty->icanon && !tty->canon_data)
return N_TTY_BUF_SIZE;
if (left > 0)
return left;
return 0;
if (left <= 0)
left = tty->icanon && !tty->canon_data;
return left;
}
/**
@ -1473,13 +1466,17 @@ static ssize_t write_chan(struct tty_struct * tty, struct file * file,
if (tty->driver->flush_chars)
tty->driver->flush_chars(tty);
} else {
c = tty->driver->write(tty, b, nr);
if (c < 0) {
retval = c;
goto break_out;
while (nr > 0) {
c = tty->driver->write(tty, b, nr);
if (c < 0) {
retval = c;
goto break_out;
}
if (!c)
break;
b += c;
nr -= c;
}
b += c;
nr -= c;
}
if (!nr)
break;

7
drivers/char/pcmcia/synclink_cs.c
View file

@ -71,7 +71,6 @@
#include <linux/workqueue.h>
#include <linux/hdlc.h>
#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
@ -593,11 +592,6 @@ static dev_link_t *mgslpc_attach(void)
dev_list = link;
client_reg.dev_info = &dev_info;
client_reg.EventMask =
CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
client_reg.event_handler = &mgslpc_event;
client_reg.Version = 0x0210;
client_reg.event_callback_args.client_data = link;
@ -3093,6 +3087,7 @@ static struct pcmcia_driver mgslpc_driver = {
.name = "synclink_cs",
},
.attach = mgslpc_attach,
.event = mgslpc_event,
.detach = mgslpc_detach,
.id_table = mgslpc_ids,
};

2
drivers/char/random.c
View file

@ -271,7 +271,7 @@ static int random_write_wakeup_thresh = 128;
* samples to avoid wasting CPU time and reduce lock contention.
*/
static int trickle_thresh = INPUT_POOL_WORDS * 28;
static int trickle_thresh __read_mostly = INPUT_POOL_WORDS * 28;
static DEFINE_PER_CPU(int, trickle_count) = 0;

2
drivers/char/sysrq.c
View file

@ -228,7 +228,7 @@ static struct sysrq_key_op sysrq_term_op = {
static void moom_callback(void *ignored)
{
out_of_memory(GFP_KERNEL);
out_of_memory(GFP_KERNEL, 0);
}
static DECLARE_WORK(moom_work, moom_callback, NULL);

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