- 13 Jul, 2007 5 commits
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Hidetoshi Seto authored
The ".acq" semantics of the load only apply w.r.t. other data access. Reading the clock (ar.itc) isn't a data access so strange things can happen here. Specifically the read of ar.itc can be launched as soon as the read of xtime_lock.sequence is ISSUED. Since this may cache miss, and that might cause a thread switch, and there may be cache contention for the line containing xtime_lock, it may be a long time before the actual value is returned, so the ar.itc value may be very stale. Move the consumption of r28 up before the read of ar.itc to make sure that we really have got the current value of xtime_lock.sequence before look at ar.itc. Signed-off-by:
Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by:
Tony Luck <tony.luck@intel.com>
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Mark Goodwin authored
Correctly count CPU objects for SGI ia64/sn hwperf interface Signed-off-by:
Mark Goodwin <markgw@sgi.com> Signed-off-by:
Jack Steiner <steiner@sgi.com> Signed-off-by:
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Alan Cox authored
Add the needed constants and defines to activate this for the IA64 platform. Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Terry Loftin authored
On HP zx1 machines, the 'machvec=dig' parameter is needed for the kdump kernel to avoid problems with the HP sba iommu. The problem is that during the boot of the kdump kernel, the iommu is re-initialized, so in-flight DMA from improperly shutdown drivers causes an IOTLB miss which leads to an MCA. With kdump, the idea is to get into the kdump kernel with as little code as we can, so shutting down drivers properly is not an option. The workaround is to add 'machvec=dig' to the kdump kernel boot parameters. This makes the kdump kernel avoid using the sba iommu altogether, leaving the IOTLB intact. Any ongoing DMA falls harmlessly outside the kdump kernel. After the kdump kernel reboots, all devices will have been shutdown properly and DMA stopped. This patch pushes that functionality into the sba iommu initialization code, so that users won't have to find the obscure documentation telling them about 'machvec=dig'. This patch only affects HP platforms. It still includes one extern declaration in the file, because no applicable header file exists. Signed-off-by:
Terry Loftin <terry.loftin@hp.com> Signed-off-by:
Alex Williamson <alex.williamson@hp.com> Signed-off-by:
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Linus Torvalds authored
This reverts commit acb11c8b. It was broken. We most certainly *do* want the default to be the old behaviour (and the common case!), instead of breaking everybodys configuration and making 99% of all people have to override the default. What were you guys thinking? Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- 12 Jul, 2007 35 commits
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (149 commits) USB: ohci-pnx4008: Remove unnecessary cast of return value of kzalloc USB: additions to the quirk list usb-storage: implement autosuspend USB: cdc-acm: add new device id to option driver USB: goku_udc trivial cleanups USB: usb gadget stack can now -DDEBUG with Kconfig usb gadget stack: remove usb_ep_*_buffer(), part 2 usb gadget stack: remove usb_ep_*_buffer(), part 1 USB: pxa2xx_udc -- cleanups, mostly removing dma hooks USB: pxa2xx_udc: use generic gpio layer USB: quirk for samsung printer USB: usb/dma doc updates USB: drivers/usb/storage/unusual_devs.h whitespace cleanup USB: remove Makefile reference to obsolete OHCI_AT91 USB: io_*: remove bogus termios no change checks USB: mos7720: remove bogus no termios change check USB: visor and whiteheat: remove bogus termios change checks USB: pl2303: remove bogus checks and fix speed support to use tty_get_baud_rate() USB: mos7840.c: turn this into a serial driver USB: make the usb_device numa_node get assigned from controller ...
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Un-break ia64 build
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (76 commits) IB: Update MAINTAINERS with Hal's new email address IB/mlx4: Implement query SRQ IB/mlx4: Implement query QP IB/cm: Send no match if a SIDR REQ does not match a listen IB/cm: Fix handling of duplicate SIDR REQs IB/cm: cm_msgs.h should include ib_cm.h IB/cm: Include HCA ACK delay in local ACK timeout IB/cm: Use spin_lock_irq() instead of spin_lock_irqsave() when possible IB/sa: Make sure SA queries use default P_Key IPoIB: Recycle loopback skbs instead of freeing and reallocating IB/mthca: Replace memset(<addr>, 0, PAGE_SIZE) with clear_page(<addr>) IPoIB/cm: Fix warning if IPV6 is not enabled IB/core: Take sizeof the correct pointer when calling kmalloc() IB/ehca: Improve latency by unlocking after triggering the hardware IB/ehca: Notify consumers of LID/PKEY/SM changes after nondisruptive events IB/ehca: Return QP pointer in poll_cq() IB/ehca: Change idr spinlocks into rwlocks IB/ehca: Refactor sync between completions and destroy_cq using atomic_t IB/ehca: Lock renaming, static initializers IB/ehca: Report RDMA atomic attributes in query_qp() ...
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Linus Torvalds authored
This reverts commit 963bd949. The driver _does_ need the networking header files; CC [M] drivers/net/bnx2.o drivers/net/bnx2.c: In function 'bnx2_start_xmit': drivers/net/bnx2.c:5177: warning: implicit declaration of function 'tcp_optlen' drivers/net/bnx2.c:5181: error: invalid application of 'sizeof' to incomplete type 'struct ipv6hdr' drivers/net/bnx2.c:5202: error: invalid application of 'sizeof' to incomplete type 'struct tcphdr' drivers/net/bnx2.c:5207: warning: implicit declaration of function 'tcp_hdr' drivers/net/bnx2.c:5207: error: invalid type argument of '->' make[2]: *** [drivers/net/bnx2.o] Error 1 make[1]: *** [drivers/net] Error 2 make: *** [drivers] Error 2 Cc: Ilpo Jävinen <ilpo.jarvinen@helsinki.fi> Cc: David Miller <davem@davemloft.net> Signed-off-by:
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Suresh Jayaraman authored
Remove unnecessary cast of return value of kzalloc() in usb/host/ohci-pnx4008.c Signed-off-by:
Suresh Jayaraman <sjayaraman@novell.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Oliver Neukum authored
this adds some scanners reported to be crashed by autosuspend to the quirk list. Signed-off-by:
Oliver Neukum <oneukum@suse.de> Signed-off-by:
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Alan Stern authored
This patch (as930) implements autosuspend for usb-storage. It is adapted from a patch by Oliver Neukum. Autosuspend is allowed except during LUN scanning, resets, and command execution. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Andrey Arapov authored
USB: add new device id to option driver device is Samsung X180 China cellphone Signed-off-by:
Andrey Arapov <andrey.arapov@gmail.com> Acked-by:
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David Brownell authored
Minor fixes to goku_udc ... whitespace, let -DDEBUG do its thing, check the return value of device_register(), sparse tweaks. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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David Brownell authored
Although the other USB driver directories got taught how use Kconfig and the Makefile to enable the debugging messages enabled by -DDEBUG, the gadget stack was overlooked. This patch remedies that omission, but doesn't update any drivers to remove previous idiosyncracies in this area ... other than the RNDIS code, which defined its own DEBUG() macro in a broken way. Signed-off-by:
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David Brownell authored
This patch removes controller driver infrastructure which supported the now-removed usb_ep_{alloc,free}_buffer() calls. As can be seen, many of the implementations of this were broken to various degrees. Many didn't properly return dma-coherent mappings; those which did so were necessarily ugly because of bogosity in the underlying dma_free_coherent() calls ... which on many platforms can't be called from the same contexts (notably in_irq) from which their dma_alloc_coherent() sibling can be called. The main potential downside of removing this is that gadget drivers wouldn't have specific knowledge that the controller drivers have: endpoints that aren't dma-capable don't need any dma mappings at all. Signed-off-by: -
David Brownell authored
Remove usb_ep_{alloc,free}_buffer() calls, for small dma-coherent buffers. This patch just removes the interface and its users; later patches will remove controller driver support. - This interface is invariably not implemented correctly in the controller drivers (e.g. using dma pools, a mechanism which post-dates the interface by several years). - At this point no gadget driver really *needs* to use it. In current kernels, any driver that needs such a mechanism could allocate a dma pool themselves. Removing this interface is thus a simplification and improvement. Note that the gmidi.c driver had a bug in this area; fixed. Signed-off-by: -
David Brownell authored
Cleanups to the pxa2xx_udc code: - Primarily removing unused DMA hooks. - One "sparse" warning removed - Remove some Lubbock-only LED hooks (for debugging) That DMA code was never really completed. It worked, mostly, for IN transfers (to the host) if they were fortuitously aligned, but that code was never fully tested. And it was never coded for OUT transfers (which is where DMA would really help) ... because of chip errata on essentially every chip other than the pxa255, and because of design botches (nothing automated data toggle). So it's effectively been dead code for several years now ... no point in keeping it around. Signed-off-by:
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Milan Svoboda authored
This patch lets the pxa2xx_udc use the generic gpio layer, on the relevant PXA and IXP systems. Signed-off-by:
Milan Svoboda <msvoboda@ra.rockwell.com> Signed-off-by:
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Oliver Neukum authored
this printer does not survive suspension. Signed-off-by:
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David Brownell authored
This patch updates some of the documentation about DMA buffer management for USB, and ways to avoid extra copying. Our understanding of the issues has improved over time. - Most drivers should *avoid* the dma-coherent allocators. There are a few exceptions (like the HID driver). - Some methods are currently commented out; it seems folk writing USB drivers aren't doing performance tuning at that level yet. - Just avoid highmem; there's no good way to pass an "I can do highmem DMA" capability through a driver stack. This is easy, everything already avoids highmem. But it'd be nice if x86_32 systems with much physical memory could use it directly with network adapters and mass storage devices. (Patch, anyone?) Signed-off-by:
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S.Caglar Onur authored
Following patch removes trailing whitespaces at the ends of lines and converts smarttabs/whitespaces into real tabs. Signed-off-by:
S.Caglar Onur <caglar@pardus.org.tr> Signed-off-by:
Phil Dibowitz <phil@ipom.com> Signed-off-by:
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Robert P. J. Day authored
Signed-off-by:
Robert P. J. Day <rpjday@mindspring.com> Signed-off-by:
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
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Alan Cox authored
The MOS driver is "interesting", in a bad kind of 'how the hell did this get merged' kind of way - Remove the bogus termios change check - Remove the duplicate code for half the ioctls - Remove the supporting code to duplicate the ioctl code Signed-off-by:
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Yinghai Lu authored
So we can use dev_to_node(&usb_dev->dev) later in kmalloc_node to dma buffer Signed-off-by:
Yinghai Lu <yinghai.lu@sun.com> Cc: Andi Kleen <ak@suse.de> Acked-by:
Christoph Lameter <clameter@sgi.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by:
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Oliver Neukum authored
Fix an oops that happens in relation with applying work arounds for buggy ftdi_sio devices. The quirks were handled too early because due to changes in the initialisation of usb serial devices the device was not fully initialised when the old hook was called. Addresses bug 8564 Cc: <stable@kernel.org> Signed-off-by:
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Matthias Kaehlcke authored
Low performance USB storage driver: Use list_for_each_entry() instead of list_for_each() Signed-off-by:
Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Cc: Pete Zaitcev <zaitcev@redhat.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by:
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Jan Engelhardt authored
Generally, Jens Axboe was against 'default y', so I'll have some patches to remove it. Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by:
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Venki Pallipadi authored
Make usb autosuspend timers 1sec jiffy aligned. This helps to reduce the frequency at which the CPU must be taken out of a lower-power state. Signed-off-by:
Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by:
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Jeremy Katz authored
Blackberry devices charge over USB. By autosuspending the port, they are not able to charge reliably. Signed-off-by:
Jeremy Katz <katzj@redhat.com> Signed-off-by:
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Jeremy Katz authored
The Blackberry Pearl (8100) needs similar tweaks as older Blackberry models to be able to charge when connected via USB. The Pearl also adds an additional need to go into a separate mode for fully accessing the device; do that by default as well. Changes based on the changes from bcharge in the barry project (http://barry.sf.net) Signed-off-by:
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Craig W. Nadler authored
USB_IAD: Adds support for USB Interface Association Descriptors. This patch adds support to the USB host stack for parsing, storing, and displaying Interface Association Descriptors. In /proc/bus/usb/devices lines starting with A: show the fields in an IAD. In sysfs if an interface on a USB device is referenced by an IAD the following files will be added to the sysfs directory for that interface: iad_bFirstInterface, iad_bInterfaceCount, iad_bFunctionClass, and iad_bFunctionSubClass, iad_bFunctionProtocol Signed-off-by:
Craig W. Nadler <craig@nadler.us> Signed-off-by:
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Greg Kroah-Hartman authored
Update the original developer's email addresses at their request. Cc: Vijaya Kumar <vijaykumar.gn@gmail.com> Cc: Ajay Kumar <naanuajay@yahoo.com> Cc: Gurudeva <ngurudeva@yahoo.com> Signed-off-by: -
Alan Stern authored
The loop in usb_sg_wait() is structured in a way that makes it hard to tell, when the loop exits, whether or not the last URB submission succeeded. This patch (as928) changes it from a "for" loop to a "while" loop and keeps "i" always equal to the number of successful submissions. This fixes an off-by-one error which can show up when the first URB submission fails. The patch also removes a couple of lines that initialize fields which don't need to be initialized. Signed-off-by:
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Alan Stern authored
Root hubs can't be resumed if their parent controller device is still suspended. This patch (as925) adds a check for that condition in hcd_bus_resume() and prevents it from being treated as a fatal controller failure. ehci-hcd is updated to add the corresponding test. Unnecessary debugging messages are removed from uhci-hcd and dummy-hcd. The error return code from dummy-hcd is changed to -ESHUTDOWN, the same as the others. ohci-hcd doesn't need any changes. Suspend handling in the non-PCI host drivers is somewhat hit-and-miss. This patch shouldn't have any effect on them. Signed-off-by:
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Alan Stern authored
This patch (as922) removes all but one of the remaining vestiges of dev->power.power_state from usbcore. The only usage left must remain until the deprecated "power/state" sysfs attribute is gone. Signed-off-by:
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