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Currently, the set_lazy_mode pv_op is overloaded with 5 functions:
1. enter lazy cpu mode
2. leave lazy cpu mode
3. enter lazy mmu mode
4. leave lazy mmu mode
5. flush pending batched operations
This complicates each paravirt backend, since it needs to deal with
all the possible state transitions, handling flushing, etc. In
particular, flushing is quite distinct from the other 4 functions, and
seems to just cause complication.
This patch removes the set_lazy_mode operation, and adds "enter" and
"leave" lazy mode operations on mmu_ops and cpu_ops. All the logic
associated with enter and leaving lazy states is now in common code
(basically BUG_ONs to make sure that no mode is current when entering
a lazy mode, and make sure that the mode is current when leaving).
Also, flush is handled in a common way, by simply leaving and
re-entering the lazy mode.
The result is that the Xen, lguest and VMI lazy mode implementations
are much simpler.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Zach Amsden <zach@vmware.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Avi Kivity <avi@qumranet.com>
Cc: Anthony Liguory <aliguori@us.ibm.com>
Cc: "Glauber de Oliveira Costa" <glommer@gmail.com>
Cc: Jun Nakajima <jun.nakajima@intel.com>
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This patch refactors the paravirt_ops structure into groups of
functionally related ops:
pv_info - random info, rather than function entrypoints
pv_init_ops - functions used at boot time (some for module_init too)
pv_misc_ops - lazy mode, which didn't fit well anywhere else
pv_time_ops - time-related functions
pv_cpu_ops - various privileged instruction ops
pv_irq_ops - operations for managing interrupt state
pv_apic_ops - APIC operations
pv_mmu_ops - operations for managing pagetables
There are several motivations for this:
1. Some of these ops will be general to all x86, and some will be
i386/x86-64 specific. This makes it easier to share common stuff
while allowing separate implementations where needed.
2. At the moment we must export all of paravirt_ops, but modules only
need selected parts of it. This allows us to export on a case by case
basis (and also choose which export license we want to apply).
3. Functional groupings make things a bit more readable.
Struct paravirt_ops is now only used as a template to generate
patch-site identifiers, and to extract function pointers for inserting
into jmp/calls when patching. It is only instantiated when needed.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Zach Amsden <zach@vmware.com>
Cc: Avi Kivity <avi@qumranet.com>
Cc: Anthony Liguory <aliguori@us.ibm.com>
Cc: "Glauber de Oliveira Costa" <glommer@gmail.com>
Cc: Jun Nakajima <jun.nakajima@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (119 commits)
[libata] struct pci_dev related cleanups
libata: use ata_exec_internal() for PMP register access
libata: implement ATA_PFLAG_RESETTING
libata: add @timeout to ata_exec_internal[_sg]()
ahci: fix notification handling
ahci: clean up PORT_IRQ_BAD_PMP enabling
ahci: kill leftover from enabling NCQ over PMP
libata: wrap schedule_timeout_uninterruptible() in loop
libata: skip suppress reporting if ATA_EHI_QUIET
libata: clear ehi description after initial host report
pata_jmicron: match vendor and class code only
libata: add ST9160821AS / 3.ALD to NCQ blacklist
pata_acpi: ACPI driver support
libata-core: Expose gtm methods for driver use
libata: add HDT722516DLA380 to NCQ blacklist
libata: blacklist NCQ on Seagate Barracuda ST380817AS
[libata] Turn on ACPI by default
libata_scsi: Fix ATAPI transfer lengths
libata: correct handling of SRST reset sequences
libata: Integrate ACPI-based PATA/SATA hotplug - version 5
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (37 commits)
PCI: merge almost all of pci_32.h and pci_64.h together
PCI: X86: Introduce and enable PCI domain support
PCI: Add 'nodomains' boot option, and pci_domains_supported global
PCI: modify PCI bridge control ISA flag for clarity
PCI: use _CRS for PCI resource allocation
PCI: avoid P2P prefetch window for expansion ROMs
PCI: skip ISA ioresource alignment on some systems
PCI: remove transparent bridge sizing
pci: write file size to inode on proc bus file write
pci: use size stored in proc_dir_entry for proc bus files
pci: implement "pci=noaer"
PCI: fix IDE legacy mode resources
MSI: Use correct data offset for 32-bit MSI in read_msi_msg()
PCI: Fix incorrect argument order to list_add_tail() in PCI dynamic ID code
PCI: i386: Compaq EVO N800c needs PCI bus renumbering
PCI: Remove no longer correct documentation regarding MSI vector assignment
PCI: re-enable onboard sound on "MSI K8T Neo2-FIR"
PCI: quirk_vt82c586_acpi: Omit reading PCI revision ID
PCI: quirk amd_8131_mmrbc: Omit reading pci revision ID
cpqphp: Use PCI_CLASS_REVISION instead of PCI_REVISION_ID for read
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (75 commits)
PM: merge device power-management source files
sysfs: add copyrights
kobject: update the copyrights
kset: add some kerneldoc to help describe what these strange things are
Driver core: rename ktype_edd and ktype_efivar
Driver core: rename ktype_driver
Driver core: rename ktype_device
Driver core: rename ktype_class
driver core: remove subsystem_init()
sysfs: move sysfs file poll implementation to sysfs_open_dirent
sysfs: implement sysfs_open_dirent
sysfs: move sysfs_dirent->s_children into sysfs_dirent->s_dir
sysfs: make sysfs_root a regular directory dirent
sysfs: open code sysfs_attach_dentry()
sysfs: make s_elem an anonymous union
sysfs: make bin attr open get active reference of parent too
sysfs: kill unnecessary NULL pointer check in sysfs_release()
sysfs: kill unnecessary sysfs_get() in open paths
sysfs: reposition sysfs_dirent->s_mode.
sysfs: kill sysfs_update_file()
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (142 commits)
USB: fix race in autosuspend reschedule
atmel_usba_udc: Keep track of the device status
USB: Nikon D40X unusual_devs entry
USB: serial core should respect driver requirements
USB: documentation for USB power management
USB: skip autosuspended devices during system resume
USB: mutual exclusion for EHCI init and port resets
USB: allow usbstorage to have LUNS greater than 2Tb
USB: Adding support for SHARP WS011SH to ipaq.c
USB: add atmel_usba_udc driver
USB: ohci SSB bus glue
USB: ehci build fixes on au1xxx, ppc-soc
USB: add runtime frame_no quirk for big-endian OHCI
USB: funsoft: Fix termios
USB: visor: termios bits
USB: unusual_devs entry for Nikon DSC D2Xs
USB: re-remove <linux/usb_sl811.h>
USB: move <linux/usb_gadget.h> to <linux/usb/gadget.h>
USB: Export URB statistics for powertop
USB: serial gadget: Disable endpoints on unload
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* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Don't take semaphore in cpufreq_quick_get()
[CPUFREQ] Support different families in fid/did to frequency conversion
[CPUFREQ] cpufreq_stats: misc cpuinit section annotations
[CPUFREQ] implement !CONFIG_CPU_FREQ stub for cpufreq_unregister_notifier()
[CPUFREQ] mark hotplug notifier callback as __cpuinit
[CPUFREQ] Only check for transition latency on problematic governors (kconfig fix)
[CPUFREQ] allow ondemand and conservative cpufreq governors to be used as default
[CPUFREQ] move policy's governor initialisation out of low-level drivers into cpufreq core
[CPUFREQ] Longhaul - Add support for PM133 northbridge
[CPUFREQ] x86: use num_online_nodes to get physical cpus numbers for
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* git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86: (40 commits)
x86: HPET add another ICH7 PCI id
x86: HPET force enable ICH5 suspend/resume fix
x86: HPET force enable for ICH5
x86: HPET try to activate force detected hpet
x86: HPET force enable o ICH7 and later
x86: HPET restructure hpet code for hpet force enable
clock events: allow replacement of broadcast timer
i386/x8664: cleanup the shared hpet code
i386: Remove the useless #ifdef in i8253.h
ACPI: remove the now unused ifdef code
jiffies: remove unused macros
x86_64: cleanup apic.c after clock events switch
x86_64: remove now unused code
x86: unify timex.h variants
x86: kill 8253pit.h
x86: disable apic timer for AMD C1E enabled CPUs
x86: Fix irq0 / local apic timer accounting
x86_64: convert to clock events
x86_64: Add (not yet used) clock event functions
x86_64: prepare idle loop for dynamic ticks
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6
* 'isdn-cleanups' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
[ISDN] HiSax diva: split setup into three smaller functions
[ISDN] HiSax sedlbauer: move ISAPNP and PCI code into functions of their own
[ISDN] HiSax elsa: split huge setup function into four smaller functions
[ISDN] HiSax avm_pci: split setup into three smaller functions
[ISDN] Remove CONFIG_PCI ifdefs from 100% PCI source code
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* Introduce pci_domains_supported global, hardcoded to zero if
!CONFIG_PCI_DOMAINS.
* Introduce 'nodomains' boot option, which clears pci_domains_supported
on platforms that enable it by default (x86, x86-64, and others when
they are converted to use this).
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Modify PCI Bridge Control ISA flag for clarity
This patch changes PCI_BRIDGE_CTL_NO_ISA to PCI_BRIDGE_CTL_ISA
and modifies it's clarifying comment and locations where used.
The change reduces the chance of future confusion since it makes
the set/unset meaning of the bit the same in both the bridge
control register and bridge_ctl field of the pci_bus struct.
Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Acked-by: Linas Vepstas <linas@austin.ibm.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Avoid creating P2P prefetch window for expansion ROMs
Because of the future possibility that P2P prefetch windows will contain
address ranges above 4GB some BIOSes are providing space in the P2P
non-prefetch windows for expansion ROMs. This is due to expansion ROM
BAR 32-bit limitation. When expansion ROM BARs without BIOS assigned
address(es) are currently found behind a P2P bridge, the kernel attempts
to create a P2P prefetch window for them even though space for them has
already been provided in the non-prefetch window. _CRS on some systems
with certain resource conservation conscious BIOSes may not provide the
extra 1MB or more memory resource needed for the expansion ROM motivated
prefetch window causing resource allocation errors.
This change corrects the problem by removing IORESOURCE_PREFETCH from
the expansion ROM flags initialization. It also removes
IORESOURCE_CACHEABLE which seems inappropriate if only non-cacheable
memory is available.
Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Skip ISA ioresource alignment on some systems
To conserve limited PCI i/o resource on some IBM multi-node systems, the
BIOS allocates (via _CRS) and expects the kernel to use addresses in
ranges currently excluded by pcibios_align_resource() [i386/pci/i386.c].
This change allows the kernel to use the currently excluded address
ranges on the IBM x3800, x3850, and x3950.
Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Remove transparent bridge sizing.
Due to code in pci_read_bridge_bases() [drivers/pci/probe.c] the child
bus of a transparent bridge already has access to the parent bus
resources so transparent bridge sizing appears unnecessary. The bridge
sizing includes alignment and granularity adjustments that can cause
significantly more memory to be reserved from the parant bus than
required by devices on the child bus and allotted by _CRS.
Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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When a /proc/bus/pci file is written to, the size of that PCI device's
configuration space must be written to the inode. Otherwise, it is
possible for the file to specify a size of 0 on stat if a task is holding
the same file open.
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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On pci_proc_attach_device(), the size of the PCI configuration space is
stored in the proc_dir_entry as the size of the file. Thus, the procfs
interface to PCI devices should use it instead of the device directly.
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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For cases in which CONFIG_PCIEAER=y (such as distro kernels), allow users
to disable PCIE Advanced Error Reporting by using "pci=noaer" on the
kernel command line.
This can be used to work around hardware or (kernel) software problems.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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I got the following error on MIPS Cobalt.
PCI: Unable to reserve I/O region #1:8@f00001f0 for device 0000:00:09.1
pata_via 0000:00:09.1: failed to request/iomap BARs for port 0 (errno=-16)
PCI: Unable to reserve I/O region #3:8@f0000170 for device 0000:00:09.1
pata_via 0000:00:09.1: failed to request/iomap BARs for port 1 (errno=-16)
pata_via 0000:00:09.1: no available native port
The legacy mode IDE resources set the following order.
pci_setup_device()
Legacy mode ATA controllers have fixed addresses.
IDE resources: 0x1F0-0x1F7, 0x3F6, 0x170-0x177, 0x376
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pcibios_fixup_bus()
MIPS Cobalt PCI bus regions have the -0x10000000 offset from PCI resources.
pcibios_fixup_bus() fix PCI bus regions.
0x1F0 - 0x10000000 = 0xF00001F0
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ata_pci_init_one()
PCI: Unable to reserve I/O region #1:8@f00001f0 for device 0000:00:09.1
In some architectures, PCI bus regions have the offset from PCI resources.
For this reason, pci_setup_device() should set PCI bus regions to
dev->resource[].
[akpm@linux-foundation.org: use struct initialiser]
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Greg KH <greg@kroah.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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While reading the MSI code trying to find a reason why MSI wouldn't
work for devices that have a 32-bit MSI address capability, I noticed
that read_msi_msg() seems to read the message data from the wrong
offset in this case.
Signed-off-by: Roland Dreier <roland@digitalvampire.org>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The code for dynamically assigning new ids to PCI drivers,
store_new_id(), calls list_add_tail() with the list head and new node
arguments in reversed order.
The result is that every new id written essentially overwrites the
previous list of ids.
Caught with the help of Rusty's "horribly bad" list_node patch:
http://lkml.org/lkml/2007/6/10/10
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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On the "MSI K8T Neo2-FIR" board the BIOS disables the onboard
soundcard, if a second PCI soundcard is present.
This patch sets the korrect register bit to enable the onboard sound.
Removed old code in /drivers/pci/quirks.c that only checks for the
PCI-ID and fires on any Board with VIA 8237.
New code in /arch/i386/pci/fixup.c checks the DMI-tables and only runs
on the specific board.
Signed-off-by: Johannes Goecke <goecke@upb.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Cc: Peter Oruba <peter.oruba@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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While PCI_CLASS_REVISION and PCI_REVISION_ID are identical, the
code here discards the revision content and is only interested in
the class number.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Cc: Krosten Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Convert ibmphp to new kthread api
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Replacing n & (n - 1) for power of 2 check by is_power_of_2(n)
Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Minor cleanups for pciehp_hpc.c. The 80 column rules, removing
unnecessary lines, and so on.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Remove trailing whitespaces from pciehp_pci.c.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Remove trailing whitespaces from pciehp_ctrl.c.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Remove trailing whitespaces from pciehp_core.c.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Remove trailing whitespaces from pciehp_hpc.c.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch removes DBG_ENTER_ROUTIN, DBG_LEAVE_ROUTINE and related
code, which seem no longer needed.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Native hotplug
According to the PCI firmware spec (3.0), the OS must claim control
over the PCI Express Capability bits in addition to the PCI Express
Native Hot Plug feature when executing _OSC.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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When removing a device with a bridge on it, only read the
bridge control register if the adapter is actually present.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Remove unnecessary CONFIG_HOTPLUG_PCI_PCIE_EVENT_MODE.
The CONFIG_HOTPLUG_PCI_PCIE_POLL_EVENT_MODE option is not needed
because polling mechanism can be enabled through 'pciehp_poll_mode'
module option.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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drivers/pci/hotplug/cpqphp_ctrl.c | 79698 -> 79638 (-60 bytes)
drivers/pci/hotplug/cpqphp_ctrl.o | 192896 -> 192736 (-160 bytes)
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6
* 'hysdn' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
[ISDN] hysdn: convert to PCI hotplug API
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git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
mmc: use correct unregister function for led trigger
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This patch (as1002) fixes a small race which can occur when a driver
expects usbcore to reschedule an autosuspend request. If the request
arrives too late, it won't be rescheduled. The patch adds an extra
argument to autosuspend_check(), indicating that a reschedule is
needed no matter how much time has elapsed.
It also tries to avoid letting asynchronous changes to the value of
jiffies cause a delay to become negative, by caching a local copy of
the current time.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Keep track of the device status (as returned by the GET_STATUS
request) and allow it to be manipulated by set_selfpowered() as
well as SET_FEATURE/CLEAR_FEATURE (for remote wakeup)
Implement the wakeup() op, which refuses to do anything if the
DEVICE_REMOTE_WAKEUP feature wasn't set by the host. Now this
driver passes USBCV (at least, with gadget zero).
Fix one more locking bug; lockdep is every developer's friend.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Not surprisingly the Nikon D40X DSC needs the same quirks as the D40,
but it has a separate ID.
See http://bugs.gentoo.org/show_bug.cgi?id=191431
From: Ortwin Glück <odi@odi.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as997) fixes a bug in the USB serial core. The core needs
to pay attention to drivers' requirements regarding the number and
type of endpoints a device has.
At the same time, the patch changes the NUM_DONT_CARE constant (which
is stored in a single-byte field) from -1 to a safer, unsigned value.
It also improves the kerneldoc for several fields in the
usb_serial_driver structure.
Finally, the patch replaces a list_for_each() with list_for_each_entry().
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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System suspends and hibernation are supposed to be as transparent as
possible. By this reasoning, if a USB device is already autosuspended
before the system sleep begins then it should remain autosuspended
after the system wakes up.
This patch (as1001) adds a skip_sys_resume flag to the usb_device
structure and uses it to avoid waking up devices which were suspended
when a system sleep began.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as999) fixes a problem that sometimes shows up when host
controller driver modules are loaded in the wrong order. If ehci-hcd
happens to initialize an EHCI controller while the companion OHCI or
UHCI controller is in the middle of a port reset, the reset can fail
and the companion may get very confused. The patch adds an
rw-semaphore and uses it to keep EHCI initialization and port resets
mutually exclusive.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
Cc: David Miller <davem@davemloft.net>
Cc: Dely L Sy <dely.l.sy@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Attached is a very small patch (several comment lines) and a one-line
coded change) that allows for USB storage devices that are larger than
2TB.
At the company where I work we need such support, and one of my
co-workers, Jane Liu, pointed out that SCSI low-layer drivers need to
specify what size CDBs they accept. After looking through the code it
became obvious that the current USB Storage code accepted the default of
12-byte CDBs, so I changed it to accept 16-byte CDBs. This allows our
device to work.
Signed-off-by: Richard Sharpe <rsharpe@richardsharpe.com>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch supports for SHARP WS011SH[0] to ipaq.c
[0]: http://www.willcom-inc.com/ja/lineup/ws/011sh/index.html
(Sorry , Japanese only.)
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This is a driver for the Atmel USBA UDC which can be found integrated
on AT32AP700x AVR32 processors. For hardware documentation, please see
the AT32AP7000 data sheet:
http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf
This is a dual speed controller (connects at high or full speed).
The driver supports up to 7 control, bulk, interrupt and isochronous
endpoints with some constraints. Bulk, interrupt and isochronous
transfers are driven by DMA.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This adds SSB bus glue for the USB OHCI HCD.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Cleanup: references to two PM routines (and HCD entry points)
that no longer exist are swapped with their replacements.
Evidently au1xxx and ppc-soc EHCI support doesn't get compiled
with power management very much, or these build bugs would have
been patched long ago.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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