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2010-09-17Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: nosy: fix build when CONFIG_FIREWIRE=N firewire: ohci: activate cycle timer register quirk on Ricoh chips
2010-09-16firewire: nosy: fix build when CONFIG_FIREWIRE=NStefan Richter
drivers/firewire/nosy* is a stand-alone driver that does not depend on CONFIG_FIREWIRE. Hence let make descend into drivers/firewire/ also if that option is off. The stand-alone driver drivers/ieee1394/init_ohci1394_dma* will soon be moved into drivers/firewire/ too and will require the same makefile fix. Side effect: As mentioned in https://bugzilla.novell.com/show_bug.cgi?id=586172#c24 this influences the order in which either firewire-ohci or ohci1394 is going to be bound to an OHCI-1394 controller in case of a modular build of both drivers if no modprobe blacklist entries are configured. However, a user of such a setup cannot expect deterministic behavior anyway. The Kconfig help and the migration guide at ieee1394.wiki.kernel.org recommend blacklist entries when a dual IEEE 1394 stack build is being used. (The coexistence period of the two stacks is planned to end soon.) Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2010-08-16Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: arch/sh/include/asm/Kbuild drivers/Makefile Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-07-27time: Kill off CONFIG_GENERIC_TIMEJohn Stultz
Now that all arches have been converted over to use generic time via clocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME config option and simplify the generic code. Signed-off-by: John Stultz <johnstul@us.ibm.com> LKML-Reference: <1279068988-21864-4-git-send-email-johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2010-07-02dmaengine: initialise DMA engine before MMCGuennadi Liakhovetski
To use DMA engine based DMA with MMC in a non-modular build, the DMA engine has to initialise before MMC. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-28intel_idle: native hardware cpuidle driver for latest Intel processorsLen Brown
This EXPERIMENTAL driver supersedes acpi_idle on Intel Atom Processors, Intel Core i3/i5/i7 Processors and associated Intel Xeon processors. It does not support the Intel Core2 processor or earlier. For kernels configured with ACPI, CONFIG_INTEL_IDLE=y allows intel_idle to probe before the ACPI processor driver. Booting with "intel_idle.max_cstate=0" disables intel_idle and the system will fall back on ACPI's "acpi_idle". Typical Linux distributions load ACPI processor module early, making CONFIG_INTEL_IDLE=m not easily useful on ACPI platforms. intel_idle probes all processors at module_init time. Processors that are hot-added later will be limited to using C1 in idle. Signed-off-by: Len Brown <len.brown@intel.com>
2010-05-07virtio: initialize earlierStijn Tintel
Move initialization of the virtio framework before the initialization of mtd, so that block2mtd can be used on virtio-based block devices. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=15644 Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-08Merge branch 'origin' into devel-stableRussell King
Conflicts: arch/arm/mach-mx2/devices.c arch/arm/mach-mx2/devices.h sound/soc/pxa/pxa-ssp.c
2010-02-08sh: Build drivers/sh for ARM-based SH-Mobile CPUs.Magnus Damm
Build drivers/sh in the case of ARM-based SH-Mobile CPUs. Shared code for the interrupt controller (INTC) and the gpio/pinmux (PFC) is located there. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-15vhost_net: a kernel-level virtio serverMichael S. Tsirkin
What it is: vhost net is a character device that can be used to reduce the number of system calls involved in virtio networking. Existing virtio net code is used in the guest without modification. There's similarity with vringfd, with some differences and reduced scope - uses eventfd for signalling - structures can be moved around in memory at any time (good for migration, bug work-arounds in userspace) - write logging is supported (good for migration) - support memory table and not just an offset (needed for kvm) common virtio related code has been put in a separate file vhost.c and can be made into a separate module if/when more backends appear. I used Rusty's lguest.c as the source for developing this part : this supplied me with witty comments I wouldn't be able to write myself. What it is not: vhost net is not a bus, and not a generic new system call. No assumptions are made on how guest performs hypercalls. Userspace hypervisors are supported as well as kvm. How it works: Basically, we connect virtio frontend (configured by userspace) to a backend. The backend could be a network device, or a tap device. Backend is also configured by userspace, including vlan/mac etc. Status: This works for me, and I haven't see any crashes. Compared to userspace, people reported improved latency (as I save up to 4 system calls per packet), as well as better bandwidth and CPU utilization. Features that I plan to look at in the future: - mergeable buffers - zero copy - scalability tuning: figure out the best threading model to use Note on RCU usage (this is also documented in vhost.h, near private_pointer which is the value protected by this variant of RCU): what is happening is that the rcu_dereference() is being used in a workqueue item. The role of rcu_read_lock() is taken on by the start of execution of the workqueue item, of rcu_read_unlock() by the end of execution of the workqueue item, and of synchronize_rcu() by flush_workqueue()/flush_work(). In the future we might need to apply some gcc attribute or sparse annotation to the function passed to INIT_WORK(). Paul's ack below is for this RCU usage. (Includes fixes by Alan Cox <alan@linux.intel.com>, David L Stevens <dlstevens@us.ibm.com>, Chris Wright <chrisw@redhat.com>) Acked-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-23Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (58 commits) mtd: jedec_probe: add PSD4256G6V id mtd: OneNand support for Nomadik 8815 SoC (on NHK8815 board) mtd: nand: driver for Nomadik 8815 SoC (on NHK8815 board) m25p80: Add Spansion S25FL129P serial flashes jffs2: Use SLAB_HWCACHE_ALIGN for jffs2_raw_{dirent,inode} slabs mtd: sh_flctl: register sh_flctl using platform_driver_probe() mtd: nand: txx9ndfmc: transfer 512 byte at a time if possible mtd: nand: fix tmio_nand ecc correction mtd: nand: add __nand_correct_data helper function mtd: cfi_cmdset_0002: add 0xFF intolerance for M29W128G mtd: inftl: fix fold chain block number mtd: jedec: fix compilation problem with I28F640C3B definition mtd: nand: fix ECC Correction bug for SMC ordering for NDFC driver mtd: ofpart: Check availability of reg property instead of name property driver/Makefile: Initialize "mtd" and "spi" before "net" mtd: omap: adding DMA mode support in nand prefetch/post-write mtd: omap: add support for nand prefetch-read and post-write mtd: add nand support for w90p910 (v2) mtd: maps: add mtd-ram support to physmap_of mtd: pxa3xx_nand: add single-bit error corrections reporting ...
2009-09-19driver/Makefile: Initialize "mtd" and "spi" before "net"Sudhakar Rajashekhara
On TI's da850/omap-l138 EVM, MAC address is stored in SPI flash. This patch changes the initialization sequence of the drivers by moving mtd and spi ahead of net in drivers/Makefile thereby enabling da850/omap-l138 ethernet driver to read the MAC address while booting. Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-08-28SFI: add platform-independent core supportFeng Tang
drivers/sfi/sfi_core.c contains the generic SFI implementation. It has a private header, sfi_core.h, for its own use and the private use of future files in drivers/sfi/ Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-06-18LinuxPPS: core supportRodolfo Giometti
This patch adds the kernel side of the PPS support currently named "LinuxPPS". PPS means "pulse per second" and a PPS source is just a device which provides a high precision signal each second so that an application can use it to adjust system clock time. Common use is the combination of the NTPD as userland program with a GPS receiver as PPS source to obtain a wallclock-time with sub-millisecond synchronisation to UTC. To obtain this goal the userland programs shoud use the PPS API specification (RFC 2783 - Pulse-Per-Second API for UNIX-like Operating Systems, Version 1.0) which in part is implemented by this patch. It provides a set of chars devices, one per PPS source, which can be used to get the time signal. The RFC's functions can be implemented by accessing to these char devices. Signed-off-by: Rodolfo Giometti <giometti@linux.it> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-17drivers: add support for the TI VLYNQ busFlorian Fainelli
Add support for the TI VLYNQ high-speed, serial and packetized bus. This bus allows external devices to be connected to the System-on-Chip and appear in the main system memory just like any memory mapped peripheral. It is widely used in TI's networking and multimedia SoC, including the AR7 SoC. Signed-off-by: Eugene Konev <ejka@imfi.kspu.ru> Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-09ieee802154: add simple HardMAC driver sampleSergey Lapin
fakehard is a really simple driver implementing only necessary callbacks and serves the role of an example of driver for HardMAC IEEE 802.15.4 device. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Sergey Lapin <slapin@ossfans.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-29V4L/DVB (11561a): move media after i2cGuennadi Liakhovetski
Currently drivers/media drivers are linked very early - directly after base, block, misc, and mfd and before ata, scsi, ide, input, firewire, usb, and i2c. This breaks static build of video4linux drivers, that use generic CPU i2c adapter drivers and the v4l2-subdev subsystem, because during video4linux probing the v4l2-subdev core requires a struct i2c_adapter context, which cannot be satisfied before the i2c subsystem is initialised. Moving drivers/media after drivers/i2c fixes this problem. The best way to trigger action is by submitting a patch:-) So, let's see what comes out of it - on the one hand I don't see any reason why media has to be linked this early, and nobody was able to give me one yesterday as this problem has been discussed on linux-media, OTOH, maybe indeed it would be better to move i2c the whole way up above media, but that'd be much bigger of a change, I think. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-28ide/net: flip the order of SATA and network initArjan van de Ven
this patch flips the order in which sata and network drivers are initialized. SATA probing takes quite a bit of time, and with the asynchronous infrastructure other drivers that run after it can execute in parallel. Network drivers do tend to take some real time talking to the hardware, so running these later is a good thing (the sata probe then runs concurrent) This saves about 15% of my kernels boot time. Both Dave and Jeff acked this patch and suggested it should go via the async tree. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Jeff Garzik <jeff@garzik.org>
2009-01-09Merge branch 'drivers-platform' into releaseLen Brown
Conflicts: drivers/misc/Kconfig Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-08regulator: init/link earlierDavid Brownell
Move regulator earlier in link sequence. The regulator core currently initializes as a core_initcall() to be available early ... but then it links way late, throwing away that benefit, so regulators available at e.g. subsys_initcall() are not available to subsystems which need to use them. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-01-07USB: move isp1301_omap to drivers/usb/otgDavid Brownell
This moves the isp1301-omap driver from the drivers/i2c/chips directory (which will be shrinking) into a new drivers/usb/otg directory (which will grow, with more drivers and utilities). Note that OTG infrastructure needs to be initialized before either host or peripheral side USB support, and may be needed before for pure host or pure peripheral configurations. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-12-19create drivers/platform/x86/ from drivers/misc/Len Brown
Move x86 platform specific drivers from drivers/misc/ to a new home under drivers/platform/x86/. The community has been maintaining x86 vendor-specific platform specific drivers under /drivers/misc/ for a few years. The oldest ones started life under drivers/acpi. They moved out of drivers/acpi/ because they don't actually implement the ACPI specification, but either simply use ACPI, or implement vendor-specific ACPI extensions. In the future we anticipate... drivers/misc/ will go away. other architectures will create drivers/platform/<arch> Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-26Merge branch 'for-upstream' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb * 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb: uwb: build UWB before USB/WUSB
2008-10-24uwb: build UWB before USB/WUSBDavid Vrabel
The WHCI-HCD driver in drivers/usb/host/ depends on the umc driver in drivers/uwb/. Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-23Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (123 commits) dock: make dock driver not a module ACPI: fix ia64 build warning ACPI: hack around sysfs warning with link order ACPI suspend: fix build warning when CONFIG_ACPI_SLEEP=n intel_menlo: fix build warning panasonic-laptop: fix build ACPICA: Update version to 20080926 ACPICA: Add support for zero-length buffer-to-string conversions ACPICA: New: Validation for predefined ACPI methods/objects ACPICA: Fix for implicit return compatibility ACPICA: Fixed a couple memory leaks associated with "implicit return" ACPICA: Optimize buffer allocation procedure ACPICA: Fix possible memory leak, error exit path ACPICA: Fix fault after mem allocation failure in AML parser ACPICA: Remove unused ACPI register bit definition ACPICA: Update version to 20080829 ACPICA: Fix possible memory leak in acpi_ns_get_external_pathname ACPICA: Cleanup for internal Reference Object ACPICA: Update comments - no functional changes ACPICA: Update for Reference ACPI_OPERAND_OBJECT ...
2008-10-23Merge branch 'linus' into testLen Brown
Conflicts: MAINTAINERS arch/x86/kernel/acpi/boot.c arch/x86/kernel/acpi/sleep.c drivers/acpi/Kconfig drivers/pnp/Makefile drivers/pnp/quirks.c Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22i7300_idle driver v1.55Andy Henroid
The Intel 7300 Memory Controller supports dynamic throttling of memory which can be used to save power when system is idle. This driver does the memory throttling when all CPUs are idle on such a system. Refer to "Intel 7300 Memory Controller Hub (MCH)" datasheet for the config space description. Signed-off-by: Andy Henroid <andrew.d.henroid@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
2008-10-20Merge branch 'master' into for-upstreamDavid Vrabel
Conflicts: Documentation/ABI/testing/sysfs-bus-usb drivers/Makefile
2008-10-10Staging: add Kconfig entries and Makefile infrastructureGreg Kroah-Hartman
This hooks up the drivers/staging directory to the build system Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-17uwb: add the UWB stack (build system)Greg Kroah-Hartman
The Kbuild and Kconfig files. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-08-14USB: Add MUSB and TUSB supportFelipe Balbi
This patch adds support for MUSB and TUSB controllers integrated into omap2430 and davinci. It also adds support for external tusb6010 controller. Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-30regulator: core kbuild filesLiam Girdwood
This patch adds kernel build support for the regulator core. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
2008-07-25gpiolib: allow user-selectionMichael Buesch
This patch adds functionality to the gpio-lib subsystem to make it possible to enable the gpio-lib code even if the architecture code didn't request to get it built in. The archtitecture code does still need to implement the gpiolib accessor functions in its asm/gpio.h file. This patch adds the implementations for x86 and PPC. With these changes it is possible to run generic GPIO expansion cards on every architecture that implements the trivial wrapper functions. Support for more architectures can easily be added. Signed-off-by: Michael Buesch <mb@bu3sch.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: David Brownell <david-b@pacbell.net> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jean Delvare <khali@linux-fr.org> Cc: Samuel Ortiz <sameo@openedhand.com> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-20gpu: re-order GPU subdirectory vs char for AGP vs DRM startup.Dave Airlie
Signed-off-by: Dave Airlie <airlied@linux.ie>
2008-07-14drm: reorganise drm tree to be more future proof.Dave Airlie
With the coming of kernel based modesetting and the memory manager stuff, the everything in one directory approach was getting very ugly and starting to be unmanageable. This restructures the drm along the lines of other kernel components. It creates a drivers/gpu/drm directory and moves the hw drivers into subdirectores. It moves the includes into an include/drm, and sets up the unifdef for the userspace headers we should be exporting. Signed-off-by: Dave Airlie <airlied@redhat.com>
2008-04-30Basic braille screen reader supportSamuel Thibault
This adds a minimalistic braille screen reader support. This is meant to be used by blind people e.g. on boot failures or when / cannot be mounted etc and thus the userland screen readers can not work. [akpm@linux-foundation.org: fix exports] Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Jiri Kosina <jikos@jikos.cz> Cc: Dmitry Torokhov <dtor@mail.ru> Acked-by: Alan Cox <alan@redhat.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-09memstick: initial commit for Sony MemoryStick supportAlex Dubov
Sony MemoryStick cards are used in many products manufactured by Sony. They are available both as storage and as IO expansion cards. Currently, only MemoryStick Pro storage cards are supported via TI FlashMedia MemoryStick interface. [mboton@gmail.com: biuld fix] [akpm@linux-foundation.org: build fix] Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Miguel Boton <mboton@gmail.co> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07Merge branches 'release' and 'menlo' into releaseLen Brown
Conflicts: drivers/acpi/video.c Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-05gpiolib: add drivers/gpio directoryDavid Brownell
Add an empty drivers/gpio directory for gpiolib infrastructure and GPIO expanders. It will be populated by later patches. This won't be the only place to hold such gpio_chip code. Many external chips add a few GPIOs as secondary functionality (such as MFD drivers) and platform code frequently needs to closely integrate GPIO and IRQ support. This is placed *early* in the build/link sequence since it's common for other drivers to depend on GPIOs to do their work, so they must be initialized early in the device_initcall() sequence. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Jean Delvare <khali@linux-fr.org> Cc: Eric Miao <eric.miao@marvell.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Philipp Zabel <philipp.zabel@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-02the generic thermal sysfs driverZhang Rui
The Generic Thermal sysfs driver for thermal management. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Thomas Sujith <sujith.thomas@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (27 commits) lguest: use __PAGE_KERNEL instead of _PAGE_KERNEL lguest: Use explicit includes rateher than indirect lguest: get rid of lg variable assignments lguest: change gpte_addr header lguest: move changed bitmap to lg_cpu lguest: move last_pages to lg_cpu lguest: change last_guest to last_cpu lguest: change spte_addr header lguest: per-vcpu lguest pgdir management lguest: make pending notifications per-vcpu lguest: makes special fields be per-vcpu lguest: per-vcpu lguest task management lguest: replace lguest_arch with lg_cpu_arch. lguest: make registers per-vcpu lguest: make emulate_insn receive a vcpu struct. lguest: map_switcher_in_guest() per-vcpu lguest: per-vcpu interrupt processing. lguest: per-vcpu lguest timers lguest: make hypercalls use the vcpu struct lguest: make write() operation smp aware ... Manual conflict resolved (maybe even correctly, who knows) in drivers/lguest/x86/core.c
2008-01-30KVM: Move arch dependent files to new directory arch/x86/kvm/Avi Kivity
This paves the way for multiple architecture support. Note that while ioapic.c could potentially be shared with ia64, it is also moved. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30x86: early boot debugging via FireWire (ohci1394_dma=early)Bernhard Kaindl
This patch adds a new configuration option, which adds support for a new early_param which gets checked in arch/x86/kernel/setup_{32,64}.c:setup_arch() to decide wether OHCI-1394 FireWire controllers should be initialized and enabled for physical DMA access to allow remote debugging of early problems like issues ACPI or other subsystems which are executed very early. If the config option is not enabled, no code is changed, and if the boot paramenter is not given, no new code is executed, and independent of that, all new code is freed after boot, so the config option can be even enabled in standard, non-debug kernels. With specialized tools, it is then possible to get debugging information from machines which have no serial ports (notebooks) such as the printk buffer contents, or any data which can be referenced from global pointers, if it is stored below the 4GB limit and even memory dumps of of the physical RAM region below the 4GB limit can be taken without any cooperation from the CPU of the host, so the machine can be crashed early, it does not matter. In the extreme, even kernel debuggers can be accessed in this way. I wrote a small kgdb module and an accompanying gdb stub for FireWire which allows to gdb to talk to kgdb using remote remory reads and writes over FireWire. An version of the gdb stub fore FireWire is able to read all global data from a system which is running a a normal kernel without any kernel debugger, without any interruption or support of the system's CPU. That way, e.g. the task struct and so on can be read and even manipulated when the physical DMA access is granted. A HOWTO is included in this patch, in Documentation/debugging-via-ohci1394.txt and I've put a copy online at ftp://ftp.suse.de/private/bk/firewire/docs/debugging-via-ohci1394.txt It also has links to all the tools which are available to make use of it another copy of it is online at: ftp://ftp.suse.de/private/bk/firewire/kernel/ohci1394_dma_early-v2.diff Signed-Off-By: Bernhard Kaindl <bk@suse.de> Tested-By: Thomas Renninger <trenn@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30lguest: fix drivers/lguest Makefile entryGlauber de Oliveira Costa
Parts depend on CONFIG_LGUEST, not just CONFIG_LGUEST_GUEST Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (39 commits) [SCSI] qla2xxx: Update version number to 8.02.00-k5. [SCSI] qla2xxx: Correct display of ISP serial-number. [SCSI] qla2xxx: Correct residual-count handling discrepancies during UNDERRUN handling. [SCSI] qla2xxx: Make driver (mostly) legacy I/O port free. [SCSI] qla2xxx: Fix issue where final flash-segment updates were falling into the slow-path write handler. [SCSI] qla2xxx: Handle unaligned sector writes during NVRAM/VPD updates. [SCSI] qla2xxx: Defer explicit interrupt-polling processing to init-time scenarios. [SCSI] qla2xxx: Resync with latest HBA SSID specification -- 2.2u. [SCSI] sym53c8xx: Remove sym_xpt_async_sent_bdr [SCSI] sym53c8xx: Remove pci_dev pointer from sym_shcb [SCSI] sym53c8xx: Make interrupt handler capable of returning IRQ_NONE [SCSI] sym53c8xx: Get rid of IRQ_FMT and IRQ_PRM [SCSI] sym53c8xx: Use scmd_printk where appropriate [SCSI] sym53c8xx: Simplify DAC DMA handling [SCSI] sym53c8xx: Remove tag_ctrl module parameter [SCSI] sym53c8xx: Remove io_ws, mmio_ws and ram_ws elements [SCSI] sym53c8xx: Remove ->device_id [SCSI] sym53c8xx: Use pdev->revision [SCSI] sym53c8xx: PCI Error Recovery support [SCSI] sym53c8xx: Stop overriding scsi_done ...
2007-10-23Virtio interfaceRusty Russell
This attempts to implement a "virtual I/O" layer which should allow common drivers to be efficiently used across most virtual I/O mechanisms. It will no-doubt need further enhancement. The virtio drivers add buffers to virtio queues; as the buffers are consumed the driver "interrupt" callbacks are invoked. There is also a generic implementation of config space which drivers can query to get setup information from the host. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Dor Laor <dor.laor@qumranet.com> Cc: Arnd Bergmann <arnd@arndb.de>
2007-10-19Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (41 commits) ACPICA: hw: Don't carry spinlock over suspend ACPICA: hw: remove use_lock flag from acpi_hw_register_{read, write} ACPI: cpuidle: port idle timer suspend/resume workaround to cpuidle ACPI: clean up acpi_enter_sleep_state_prep Hibernation: Make sure that ACPI is enabled in acpi_hibernation_finish ACPI: suppress uninitialized var warning cpuidle: consolidate 2.6.22 cpuidle branch into one patch ACPI: thinkpad-acpi: skip blanks before the data when parsing sysfs ACPI: AC: Add sysfs interface ACPI: SBS: Add sysfs alarm ACPI: SBS: Add ACPI_PROCFS around procfs handling code. ACPI: SBS: Add support for power_supply class (and sysfs) ACPI: SBS: Make SBS reads table-driven. ACPI: SBS: Simplify data structures in SBS ACPI: SBS: Split host controller (ACPI0001) from SBS driver (ACPI0002) ACPI: EC: Add new query handler to list head. ACPI: Add acpi_bus_generate_event4() function ACPI: Battery: add sysfs alarm ACPI: Battery: Add sysfs support ACPI: Battery: Misc clean-ups, no functional changes ... Fix up conflicts in drivers/misc/thinkpad_acpi.[ch] manually
2007-10-18mv watchdog tree under driversWim Van Sebroeck
move watchdog tree from drivers/char/watchdog to drivers/watchdog. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2007-10-18[SCSI] fc4: remove this and all associated driversMatthew Wilcox
This code has been slowly rotting for about eight years. It's currently impeding a few SCSI cleanups, and nobody seems to have hardware to test it any more. I talked to Dave Miller about it, and he agrees we can delete it. If anyone wants a software FC stack in future, they can retrieve this driver from git. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-16DCA: Add Direct Cache Access driverShannon Nelson
Direct Cache Access (DCA) is a method for warming the CPU cache before data is used, with the intent of lessening the impact of cache misses. This patch adds a manager and interface for matching up client requests for DCA services with devices that offer DCA services. In order to use DCA, a module must do bus writes with the appropriate tag bits set to trigger a cache read for a specific CPU. However, different CPUs and chipsets can require different sets of tag bits, and the methods for determining the correct bits may be simple hardcoding or may be a hardware specific magic incantation. This interface is a way for DCA clients to find the correct tag bits for the targeted CPU without needing to know the specifics. [Dave Miller] use DEFINE_SPINLOCK() Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>