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2007-02-26[PATCH] x86_64 irq: Safely cleanup an irq after moving it.Eric W. Biederman
The problem: After moving an interrupt when is it safe to teardown the data structures for receiving the interrupt at the old location? With a normal pci device it is possible to issue a read to a device to flush all posted writes. This does not work for the oldest ioapics because they are on a 3-wire apic bus which is a completely different data path. For some more modern ioapics when everything is using front side bus delivery you can flush interrupts by simply issuing a read to the ioapic. For other modern ioapics emperical testing has shown that this does not work. So it appears the only reliable way to know the last of the irqs from an ioapic have been received from before the ioapic was reprogrammed is to received the first irq from the ioapic from after it was reprogrammed. Once we know the last irq message has been received from an ioapic into a local apic we then need to know that irq message has been processed through the local apics. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Add constants for the reserved IRQ vectors.Eric W. Biederman
For the ISA irqs we reserve 16 vectors. This patch adds constants for those vectors and modifies the code to use them. Making the code a little clearer and making it possible to move these vectors in the future. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Remove unnecessary irq 0 setup.Eric W. Biederman
The code in io_apic.c and in i8259.c currently hardcode the same vector for the timer interrupt so there is no reason for a special assignment for the timer as the setup for the i8259 already takes care of this. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Simplify assign_irq_vector's arguments.Eric W. Biederman
Currently assign_irq_vector works mostly by side effect and returns the results of it's changes to the caller. Which makes for a lot of arguments to pass/return and confusion as to what to do if you need the status but you aren't calling assign_irq_vector. This patch stops returning values from assign_irq_vector that can be retrieved just as easily by examining irq_cfg, and modifies the callers to retrive those values from irq_cfg when they need them. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Begin consolidating per_irq data in structures.Eric W. Biederman
Currently the io_apic.c has several parallel arrays for different kinds of data that can be know about an irq. The parallel arrays make the code harder to maintain and make it difficult to remove the static limits on the number of the number of irqs. This patch pushes irq_data and irq_vector into a irq_cfg array and updates the code to use it. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Use NR_IRQS not NR_IRQ_VECTORSEric W. Biederman
NR_IRQ_VECTORS is currently a compatiblity define set to NR_IRQs. This patch updates the users of NR_IRQ_VECTORS to use NR_IRQs instead so that NR_IRQ_VECTORS can be removed. There is still shared code with arch/i386 that uses NR_IRQ_VECTORS so we can't remove the #define just yet :( Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: In __DO_ACTION perform the FINAL action for every entry.Eric W. Biederman
If we have an irq that comes from multiple io_apic pins the FINAL action (which is io_apic_sync or nothing) needs to be called for every entry or else if the two pins come from different io_apics we may not wait until after the action happens on the io_apic. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Simplfiy the set_affinity logic.Eric W. Biederman
For some reason the code has been picking TARGET_CPUS when asked to set the affinity to an empty set of cpus. That is just silly it's extra work. Instead if there are no cpus to set the affinity to we should just give up immediately. That is simpler and a little more intuitive. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Refactor setup_IO_APIC_irqEric W. Biederman
Currently we have two routines that do practically the same thing setup_IO_APIC_irq and io_apic_set_pci_routing. This patch makes setup_IO_APIC_irq the common factor of these two previous routines. For setup_IO_APIC_irq all that was needed was to pass the trigger and polarity to make the code a proper subset of io_apic_set_pci_routing. Hopefully consolidating these two routines will improve maintenance there were several differences that simply appear to be one routine or the other getting it wrong. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Remove the unused vector parameter from ioapic_register_intrEric W. Biederman
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Kill declaration of removed array, interruptEric W. Biederman
It's dead Jim. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] irq: Remove set_native_irq_infoEric W. Biederman
This patch replaces all instances of "set_native_irq_info(irq, mask)" with "irq_desc[irq].affinity = mask". The latter form is clearer uses fewer abstractions, and makes access to this field uniform accross different architectures. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[PATCH] x86_64 irq: Simplfy __assign_irq_vectorEric W. Biederman
By precomputing old_mask I remove an extra if statement, remove an indentation level and make the code slightly easier to read. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26Revert "[PATCH] i386: add idle notifier"Linus Torvalds
This reverts commit 2ff2d3d74705d34ab71b21f54634fcf50d57bdd5. Uwe Bugla reports that he cannot mount a floppy drive any more, and Jiri Slaby bisected it down to this commit. Benjamin LaHaise also points out that this is a big hot-path, and that interrupt delivery while idle is very common and should not go through all these expensive gyrations. Fix up conflicts in arch/i386/kernel/apic.c and arch/i386/kernel/irq.c due to other unrelated irq changes. Cc: Stephane Eranian <eranian@hpl.hp.com> Cc: Andi Kleen <ak@suse.de> Cc: Andrew Morton <akpm@osdl.org> Cc: Uwe Bugla <uwe.bugla@gmx.de> Cc: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-26[CIFS] Fix locking problem around some cifs uses of i_size writeSteve French
Could cause hangs on smp systems in i_size_read on a cifs inode whose size has been previously simultaneously updated from different processes. Thanks to Brian Wang for some great testing/debugging on this hard problem. Fixes kernel bugzilla #7903 CC: Shirish Pargoankar <shirishp@us.ibm.com> CC: Shaggy <shaggy@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-26[libata] bump versionsJeff Garzik
Bump versions based on changes submitted during 2.6.21 merge window. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26[libata] Trim trailing whitespace.Jeff Garzik
No code changes. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26[libata] sata_mv: Fix 50xx irq maskJeff Garzik
IRQ mask bits assumed a 60xx or newer generation chip, which is very wrong for the 50xx series. Luckily both generations shared the per-port interrupt mask bits, leaving only the "misc chip features" bits to be completely mismatched. Fix 50xx by ensuring we only program bits that exist. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26[libata] sata_mv: don't touch reserved bits in EDMA config registerJeff Garzik
The code in mv_edma_cfg() reflected its 60xx origins, by doing things [slightly] incorrectly on the older 50xx and newer 6042/7042 chips. Clean up the EDMA configuration setup such that, each chip family carefully initializes its own EDMA setup. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25libata: Use new id_to_dma_mode function to tidy reporting in more drivers ↵Alan
(minimally tested) Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25pata_pcmcia: Fix oops in 2.6.21-rc1Alan
Manuel Lass reports: > This bug is also present in 2.6.21-rc1, and this patch > indeed fixes it. The change to the devres layer re-orders the execution of cleanup functions and in turn causes the pcmcia layer to oops as it zaps a pointer now needed later on. We simply leave the pointer alone. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25Add id_to_dma_mode function for printing DMA modesAlan
Also export dev_disable as this is needed by drivers doing slave decode filtering, which will follow shortly Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25sata_promise: simplify port setupMikael Pettersson
Each place in pdc_ata_init_one() that initialises a SATA port first calls pdc_ata_setup_port(), and then manually assigns the port's ->scr_addr. Simplify the code by extending pdc_ata_setup_port() to also handle scr_addr initialisation; for PATA ports we pass NULL as scr_addr. The initialisation of the PATA-only 20619 redundantly set up scr_addr for the ports. Remove this. Tested on 20619, 20575, and 20775 chips. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25sata_promise: fix 20619 new EH merge errorMikael Pettersson
When I merged my 20619 new EH conversion with #libata-upstream I had to manually resolve a conflict, and inadvertently lost pdc_pata_ops' ->post_internal_cmd binding. Corrected by this patch. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25[ARM] 4234/1: Introduce get_irqnr_preamble and arch_ret_to_user for ns9xxx.Uwe Kleine-König
This is a follow up for f80dff9da07d81da16e3b842118d47b9febf9c01 which didn't include adaption for the new ns9xxx machine support. Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-25[ARM] 4233/1: nand/s3c2410.c: warning fixArnaud Patard
Noticed while building a s3c2410 kernel : drivers/mtd/nand/s3c2410.c: In function 's3c2440_nand_calculate_ecc': drivers/mtd/nand/s3c2410.c:476: warning: format '%06x' expects type 'unsigned int', but argument 3 has type 'long unsigned int' This patch fixes it. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-25[ARM] 4226/1: initial .data and .bss mappings of XIP kernel should be ↵Nicolas Pitre
TEXT_OFFSET aware Since TEXT_OFFSET is meant to determine RAM location for kernel use, itshould affect .data and .bss initial mapping in the XIP case. Otherwise a XIP kernel would crash if TEXT_OFFSET gets somewhat larger than 2MB. Corresponding code is also moved up a bit to be near the similar .text mapping code making the whole a bit more straight forward to understand. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-25[ARM] 4224/2: allow XIP kernel to boot againNicolas Pitre
Since commit 2552fc27ff79b10b9678d92bcaef21df38bb7bb6 XIP kernels failed to boot because (_end - PAGE_OFFSET - 1) is much smaller than the size of the kernel text and data in the XIP case, causing the kernel not to be entirely mapped. Even in the non-XIP case, the use of (_end - PAGE_OFFSET - 1) is wrong because it produces a too large value if TEXT_OFFSET is larger than 1MB. Finally the original code was performing one loop too many. Let's break the loop when the section pointer has passed the last byte of the kernel instead. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-24[libata] ACPI: remove needless ->qc_issue hook existence testJeff Garzik
All drivers must implement this hook, otherwise ATA commands would go nowhere (and a lot of other oopsen would appear as well). Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24sata_vsc: refactor vsc_sata_interrupt and hook up error handlingDan Williams
Separate sata_vsc interrupt handling into a normal (per-port) path and an error path with the addition of vsc_port_intr and vsc_error_intr respectively. The error path handles interrupt based hotplug events which requires the definition of vsc_freeze and vsc_thaw. Note: vsc_port_intr has a workaround for unexpected interrupts that occur during polled commands. This fixes a regression between 2.6.19 and 2.6.20. Changes in take2: * removed definition of invalid fis bit * let standard ata-error-handling handle the serror register * clear all unhandled interrupts * revert changes to vsc_intr_mask_update (vsc_thaw enables all interrupts) * use unlikely() for the pci-abort and not-our-interrupt cases in vsc_sata_interrupt Changes in take3: * Unify the "add" + "hook-up" patches into this single patch [htejun@gmail.com: clean up comments and suggestions] Cc: Jeremy Higdon <jeremy@sgi.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24sata_sil: ignore and clear spurious IRQs while executing commands by pollingTejun Heo
sata_sil used to trigger HSM error if IRQ occurs during polling command. This didn't matter because polling wasn't used in sata_sil. However, as of 2.6.20, all IDENTIFYs are performed by polling and device detection sometimes fails due to spurious IRQ. This patch makes sata_sil ignore and clear spurious IRQ while executing commands by polling. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24sata_mv: fix pci_enable_msi() error handlingTejun Heo
intx should be turned on when pci_enable_msi() fails not when it succeeds. Fix it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24pata_amd: fix an obvious bug in cable detectionTejun Heo
80c test mask is at bits 18 and 19 of EIDE Controller Configuration not 22 and 23. Fix it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-23ACPI: Altix: cannot register acpi bus driver before bus scanJohn Keller
SN code to initialize the Hub/TIO infrastructure needs to execute before bus scanning. This was previously done with an early call to acpi_bus_register_driver(). But now that ACPI is using the Linux driver model, a driver cannot be registered that early. Make changes to have the init routines invoked via calls to acpi_get_devices(). Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-23USB: export autosuspend delay in sysfsAlan Stern
This patch (as861) adds sysfs attributes to expose the autosuspend delay value for each USB device. If the user changes the delay from 0 (no autosuspend) to a positive value, an autosuspend is attempted. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23sysfs: allow attributes to be added to groupsAlan Stern
This patch (as860) adds two new sysfs routines: sysfs_add_file_to_group() and sysfs_remove_file_from_group(). A later patch adds code that uses the new routines. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: make autosuspend delay a module parameterAlan Stern
This patch (as859) makes the default USB autosuspend delay a module parameter of usbcore. By setting the delay value at boot time, users will be able to prevent the system from autosuspending devices which for some reason can't handle it. The patch also stores the autosuspend delay as a per-device value. A later patch will allow the user to change the value, tailoring the delay for each individual device. A delay value of 0 will prevent autosuspend. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: minor cleanups for sysfs.cAlan Stern
This patch (as858) makes some minor cleanups to sysfs.c in usbcore. Unnecessary tests are removed and a few temp variables are added. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: add a blacklist for devices that can't handle some things we throw at them.Oliver Neukum
This adds a blacklist to the USB core to handle some autosuspend and string issues that devices have. Originally written by Oliver, but hacked up a lot by Greg. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: refactor usb device matching and create usb_device_matchGreg Kroah-Hartman
This is needed for the quirk match code. Cc: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: Wacom driver updatesPing Cheng
Updated Intuos and Graphire irq calls Report pad device ID Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23gadgetfs: Fixed bug in ep_aio_read_retry.Sarah Bailey
I don't think the current code works with multiple iovecs. The original would just copy the first part of priv->buf over and over into multiple iovecs. Signed-off-by: Sarah Bailey <saharabeara@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: Use USB defines in usbmouse.c and usbkbd.cMichael Opdenacker
The below patch proposes to use USB defines (defined in linux/hid.h) instead of just plain numbers in the USB_INTERFACE_INFO statements. Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: add rationale on why usb descriptor structures have to be packedInaky Perez-Gonzalez
Add argumentation in defense of using __attribute__((packed)) in USB descriptors authored by Dave Brownell. Necessary as in some cases it seems superfluous. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: ftdi_sio: Adding VID and PID for TellstickMicke Prag
I would like to add the VID and PID for Telldus Technologies Homeautomation usb-dongle to the ftdi_sio driver. From: Micke Prag <micke.prag@telldus.se> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23UHCI: Eliminate asynchronous skeleton Queue HeadersAlan Stern
This patch (as856) attempts to improve the performance of uhci-hcd by removing the asynchronous skeleton Queue Headers. They don't contain any useful information but the controller has to read through them at least once every millisecond, incurring a non-zero DMA overhead. Now all the asynchronous queues are combined, along with the period-1 interrupt queue, into a single list with a single skeleton QH. The start of the low-speed control, full-speed control, and bulk sublists is determined by linear search. Since there should rarely be more than a couple of QHs in the list, the searches should incur a much smaller total load than keeping the skeleton QHs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23UHCI: Add macros for computing DMA valuesAlan Stern
This patch (as855) adds some convenience macros to uhci-hcd, to help simplify the code for computing hardware DMA pointers. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: Davicom DM9601 usbnet driverPeter Korsgaard
This patch adds a driver for the Davicom DM9601 USB 1.1 10/100Mbps ethernet adaptor using the usbnet framework. See http://www.davicom.com.tw/eng/products/dm9601.htm for details. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23USB: asix.c - Add JVC-PRX1 idsDavid Hollis
Add device IDs for the JVC-PRX1 port replicator. Additionally cleans up the tabs on a few of other IDs in the list. Reported by: Reuben Thomas <rrt@sc3d.org> Signed-off-by: David Hollis <dhollis@davehollis.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-23usbmon: Remove erroneous __exitPete Zaitcev
mon_bin_exit() and mon_text_exit() are called from __init code, so don't mark them as __exit. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>