Commit Graph

80472 Commits

Author SHA1 Message Date
Linus Torvalds 8ded8d4e4f Merge tag 'regulator-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
 "The diffstat and changelog here is dominated by Lee Jones' heroic
  efforts to sync the ab8500 driver that's been maintained out of tree
  with mainline (plus Axel's cleanup work on the results) but there's a
  few other things here:

   - Axel Lin added regulator_map_voltage_ascend() optimising a common
     pattern for drivers using the core code.
   - Milo Kim tought the regulator core to handle regulators sharing an
     enable GPIO, avoiding the need to do hacks to support such systems.
   - Andrew Bresticker added code to handle missing supplies for
     regulators more sensibly for device tree systems, reducing the need
     for stubbing there.

  plus the usual batch of driver specific updates and fixes"

* tag 'regulator-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (152 commits)
  regulator: mc13892: Fix MC13892_SWITCHERS0_SWxHI bit in set_voltage_sel
  regulator: Remove NULL test before calling regulator_unregister()
  regulator: mc13783: Add device tree probe support
  regulator: mc13xxx: Add warning of incorrect names of regulators
  regulator: max77686: Don't update max77686->opmode if update register fails
  regulator: max8952: Add missing config.of_node setting for regulator register
  regulator: ab3100: Fix regulator register error handling
  regulator: tps6524x: Use regulator_map_voltage_ascend
  regulator: lp8788-buck: Use regulator_map_voltage_ascend
  regulator: lp872x: Use regulator_map_voltage_ascend
  regulator: mc13892: Use regulator_map_voltage_ascend for mc13892_sw_regulator_ops
  regulator: tps65023: Use regulator_map_voltage_ascend
  regulator: tps65023: Merge tps65020 ldo1 and ldo2 vsel table
  regulator: tps6507x: Use regulator_map_voltage_ascend
  regulator: mc13892: Fix MC13892_SWITCHERS0_SWxHI bit in set_voltage_sel
  regulator: ab3100: device tree support
  regulator: ab3100: refactor probe to use IDs
  regulator: max8973: Don't override control1 variable when set ramp delay bits
  regulator: tps80031: Convert tps80031_dcdc_ops to [get|set]_voltage_sel_regmap
  regulator: tps80031: Fix LDO2 track mode for TPS80031 or TPS80032-ES1.0
  ...
2013-04-29 16:32:25 -07:00
Linus Torvalds ec25e246b9 Merge tag 'usb-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg Kroah-Hartman:
 "Here's the big USB pull request for 3.10-rc1.

  Lots of USB patches here, the majority being USB gadget changes and
  USB-serial driver cleanups, the rest being ARM build fixes / cleanups,
  and individual driver updates.  We also finally got some chipidea
  fixes, which have been delayed for a number of kernel releases, as the
  maintainer has now reappeared.

  All of these have been in linux-next for a while"

* tag 'usb-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (568 commits)
  USB: ehci-msm: USB_MSM_OTG needs USB_PHY
  USB: OHCI: avoid conflicting platform drivers
  USB: OMAP: ISP1301 needs USB_PHY
  USB: lpc32xx: ISP1301 needs USB_PHY
  USB: ftdi_sio: enable two UART ports on ST Microconnect Lite
  usb: phy: tegra: don't call into tegra-ehci directly
  usb: phy: phy core cannot yet be a module
  USB: Fix initconst in ehci driver
  usb-storage: CY7C68300A chips do not support Cypress ATACB
  USB: serial: option: Added support Olivetti Olicard 145
  USB: ftdi_sio: correct ST Micro Connect Lite PIDs
  ARM: mxs_defconfig: add CONFIG_USB_PHY
  ARM: imx_v6_v7_defconfig: add CONFIG_USB_PHY
  usb: phy: remove exported function from __init section
  usb: gadget: zero: put function instances on unbind
  usb: gadget: f_sourcesink.c: correct a copy-paste misnomer
  usb: gadget: cdc2: fix error return code in cdc_do_config()
  usb: gadget: multi: fix error return code in rndis_do_config()
  usb: gadget: f_obex: fix error return code in obex_bind()
  USB: storage: convert to use module_usb_driver()
  ...
2013-04-29 12:19:23 -07:00
Linus Torvalds 507ffe4f38 Merge tag 'tty-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver update from Greg Kroah-Hartman:
 "Here's the big tty/serial driver merge request for 3.10-rc1

  Once again, Jiri has a number of TTY driver fixes and cleanups, and
  Peter Hurley came through with a bunch of ldisc fixes that resolve a
  number of reported issues.  There are some other serial driver
  cleanups as well.

  All of these have been in the linux-next tree for a while"

* tag 'tty-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (117 commits)
  tty/serial/sirf: fix MODULE_DEVICE_TABLE
  serial: mxs: drop superfluous {get|put}_device
  serial: mxs: fix buffer overflow
  ARM: PL011: add support for extended FIFO-size of PL011-r1p5
  serial_core.c: add put_device() after device_find_child()
  tty: Fix unsafe bit ops in tty_throttle_safe/unthrottle_safe
  serial: sccnxp: Replace pdata.init/exit with regulator API
  serial: sccnxp: Do not override device name
  TTY: pty, fix compilation warning
  TTY: rocket, fix compilation warning
  TTY: ircomm: fix DTR being raised on hang up
  TTY: synclinkmp: fix DTR being raised on hang up
  TTY: synclink_gt: fix DTR being raised on hang up
  TTY: synclink: fix DTR being raised on hang up
  serial: 8250_dw: Fix the stub for dw8250_probe_acpi()
  serial: 8250_dw: Convert to devm_ioremap()
  serial: 8250_dw: Set port capabilities based on CPR register
  serial: 8250_dw: Let ACPI code extract the DMA client info
  serial: 8250_dw: Support clk framework also with ACPI
  serial: 8250_dw: Enable runtime PM
  ...
2013-04-29 12:16:17 -07:00
Linus Torvalds 4f567cbc95 Merge tag 'char-misc-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver update from Greg Kroah-Hartman:
 "Here's the big char / misc driver update for 3.10-rc1

  A number of various driver updates, the majority being new
  functionality in the MEI driver subsystem (it's now a subsystem, it
  started out just a single driver), extcon updates, memory updates,
  hyper-v updates, and a bunch of other small stuff that doesn't fit in
  any other tree.

  All of these have been in linux-next for a while"

* tag 'char-misc-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (148 commits)
  Tools: hv: Fix a checkpatch warning
  tools: hv: skip iso9660 mounts in hv_vss_daemon
  tools: hv: use FIFREEZE/FITHAW in hv_vss_daemon
  tools: hv: use getmntent in hv_vss_daemon
  Tools: hv: Fix a checkpatch warning
  tools: hv: fix checks for origin of netlink message in hv_vss_daemon
  Tools: hv: fix warnings in hv_vss_daemon
  misc: mark spear13xx-pcie-gadget as broken
  mei: fix krealloc() misuse in in mei_cl_irq_read_msg()
  mei: reduce flow control only for completed messages
  mei: reseting -> resetting
  mei: fix reading large reposnes
  mei: revamp mei_irq_read_client_message function
  mei: revamp mei_amthif_irq_read_message
  mei: revamp hbm state machine
  Revert "drivers/scsi: use module_pcmcia_driver() in pcmcia drivers"
  Revert "scsi: pcmcia: nsp_cs: remove module init/exit function prototypes"
  scsi: pcmcia: nsp_cs: remove module init/exit function prototypes
  mei: wd: fix line over 80 characters
  misc: tsl2550: Use dev_pm_ops
  ...
2013-04-29 11:18:34 -07:00
Linus Torvalds 000a74f41e Merge tag 'pinctrl-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl update from Linus Walleij:
 "These are the pinctrl changes for v3.10:

   - Patrice Chotard contributed a new configuration debugfs interface
     and reintroduced fine-grained locking into the core: instead of
     having a "big pinctrl lock" we have a per-controller lock and
     specialized locks for the global controller and pinctrl handle
     lists.

   - Haoijan Zhuang deleted all the PXA and MMP2 pinctrl drivers and
     replaced them with pinctrl-single (which is also used by other
     SoCs) so we are gaining consolidation.  The platform particulars
     now come in through the device tree.

   - Haoijan also added support for generic pin config into the
     pinctrl-single driver which is another big consolidation win.

   - Finally also GPIO ranges are now supported by the pinctrl-single
     driver.

   - Tomasz Figa contributed a new Samsung S3C pinctrl driver, bringing
     more of the older Samsung platforms under the pinctrl umbrella and
     out of arch/arm.

   - Maxime Ripard contributed new Allwinner A10/A13 drivers.

   - Sachin Kamat, Wei Yongjun and Axel Lin did a lot of cleanups."

* tag 'pinctrl-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (66 commits)
  pinctrl: move subsystem mutex to pinctrl_dev struct
  pinctrl/pinconfig: fix misplaced goto
  pinctrl: s3c64xx: Fix build error caused by undefined chained_irq_enter
  pinctrl/pinconfig: add debug interface
  pinctrl: abx500: fix issue when no pdata
  pinctrl: pinctrl-single: add missing double quote
  pinctrl: sunxi: Rename wemac functions to emac
  pinctrl: exynos5440: add gpio interrupt support
  pinctrl: exynos5440: fix probe failure due to missing pin-list in config nodes
  pinctrl: ab8505: Staticize some symbols
  pinctrl: ab8540: Staticize some symbols
  pinctrl: ab9540: Staticize some symbols
  pinctrl: ab8500: Staticize some symbols
  pinctrl: abx500: Staticize some symbols
  pinctrl: Add pinctrl-s3c64xx driver
  pinctrl: samsung: Handle banks with two configuration registers
  pinctrl: samsung: Remove hardcoded register offsets
  pinctrl: samsung: Split pin bank description into two structures
  pinctrl: samsung: Include pinctrl-exynos driver data conditionally
  pinctrl: samsung: Protect bank registers with a spinlock
  ...
2013-04-29 09:40:35 -07:00
Linus Torvalds 8127b39e70 Merge tag 'fbdev-for-3.10' of git://gitorious.org/linux-omap-dss2/linux
Pull fbdev updates from Tomi Valkeinen:

 - use vm_iomap_memory() in various fb drivers to map the fb memory to
   userspace

 - Cleanups for the videomode and display_timing features

 - Updates to vt8500, wm8505 and auo-k190x fb drivers

* tag 'fbdev-for-3.10' of git://gitorious.org/linux-omap-dss2/linux: (36 commits)
  fbdev: fix check for fb_mmap's mmio availability
  fbdev: improve fb_mmap bounds checks
  fbdev/ps3fb: use vm_iomap_memory()
  fbdev/sgivwfb: use vm_iomap_memory()
  fbdev/vermillion: use vm_iomap_memory()
  fbdev/sa1100fb: use vm_iomap_memory()
  fbdev/fb-puv3: use vm_iomap_memory()
  fbdev/controlfb: use vm_iomap_memory()
  fbdev/omapfb: use vm_iomap_memory()
  video: vt8500: fix Kconfig for videomode
  video/s3c: move platform_data out of arch/arm
  video/exynos: remove unnecessary header inclusions
  drivers/video: fsl-diu-fb: add hardware cursor support
  drivers: video: use module_platform_driver_probe()
  ARM: OMAP: remove "config FB_OMAP_CONSISTENT_DMA_SIZE"
  video: wm8505fb: Convert to devm_ioremap_resource()
  AUO-K190x: Add resolutions for portrait displays
  AUO-K190x: add framebuffer rotation support
  AUO-K190x: add a 16bit truecolor mode
  AUO-K190x: make color handling more flexible
  ...
2013-04-29 09:35:27 -07:00
Linus Torvalds 96a3e8af5a Merge tag 'pci-v3.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
 "PCI changes for the v3.10 merge window:

  PCI device hotplug
   - Remove ACPI PCI subdrivers (Jiang Liu, Myron Stowe)
   - Make acpiphp builtin only, not modular (Jiang Liu)
   - Add acpiphp mutual exclusion (Jiang Liu)

  Power management
   - Skip "PME enabled/disabled" messages when not supported (Rafael
     Wysocki)
   - Fix fallback to PCI_D0 (Rafael Wysocki)

  Miscellaneous
   - Factor quirk_io_region (Yinghai Lu)
   - Cache MSI capability offsets & cleanup (Gavin Shan, Bjorn Helgaas)
   - Clean up EISA resource initialization and logging (Bjorn Helgaas)
   - Fix prototype warnings (Andy Shevchenko, Bjorn Helgaas)
   - MIPS: Initialize of_node before scanning bus (Gabor Juhos)
   - Fix pcibios_get_phb_of_node() declaration "weak" annotation (Gabor
     Juhos)
   - Add MSI INTX_DISABLE quirks for AR8161/AR8162/etc (Xiong Huang)
   - Fix aer_inject return values (Prarit Bhargava)
   - Remove PME/ACPI dependency (Andrew Murray)
   - Use shared PCI_BUS_NUM() and PCI_DEVID() (Shuah Khan)"

* tag 'pci-v3.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (63 commits)
  vfio-pci: Use cached MSI/MSI-X capabilities
  vfio-pci: Use PCI_MSIX_TABLE_BIR, not PCI_MSIX_FLAGS_BIRMASK
  PCI: Remove "extern" from function declarations
  PCI: Use PCI_MSIX_TABLE_BIR, not PCI_MSIX_FLAGS_BIRMASK
  PCI: Drop msi_mask_reg() and remove drivers/pci/msi.h
  PCI: Use msix_table_size() directly, drop multi_msix_capable()
  PCI: Drop msix_table_offset_reg() and msix_pba_offset_reg() macros
  PCI: Drop is_64bit_address() and is_mask_bit_support() macros
  PCI: Drop msi_data_reg() macro
  PCI: Drop msi_lower_address_reg() and msi_upper_address_reg() macros
  PCI: Drop msi_control_reg() macro and use PCI_MSI_FLAGS directly
  PCI: Use cached MSI/MSI-X offsets from dev, not from msi_desc
  PCI: Clean up MSI/MSI-X capability #defines
  PCI: Use cached MSI-X cap while enabling MSI-X
  PCI: Use cached MSI cap while enabling MSI interrupts
  PCI: Remove MSI/MSI-X cap check in pci_msi_check_device()
  PCI: Cache MSI/MSI-X capability offsets in struct pci_dev
  PCI: Use u8, not int, for PM capability offset
  [SCSI] megaraid_sas: Use correct #define for MSI-X capability
  PCI: Remove "extern" from function declarations
  ...
2013-04-29 09:30:25 -07:00
Linus Torvalds a87451052f Merge tag 'please-pull-misc-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Pull ia64 fixes from Tony Luck:
 "Bundle of miscellaneous ia64 fixes for 3.10 merge window."

* tag 'please-pull-misc-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  Add size restriction to the kdump documentation
  Fix example error_injection_tool
  Fix build error for numa_clear_node() under IA64
  Fix initialization of CMCI/CMCP interrupts
  Change "select DMAR" to "select INTEL_IOMMU"
  Wrong asm register contraints in the kvm implementation
  Wrong asm register contraints in the futex implementation
  Remove cast for kmalloc return value
  Fix kexec oops when iosapic was removed
  iosapic: fix a minor typo in comments
  Add WB/UC check for early_ioremap
  Fix broken fsys_getppid()
  tiocx: check retval from bus_register()
2013-04-29 09:23:17 -07:00
Linus Torvalds d0b8883800 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 update from Martin Schwidefsky:
 "This is the first batch of s390 patches for the 3.10 merge window.

  Included are some performance enhancements: storage key
  initialization, zero page cache synonyms, system call micro
  optimization and the speedup patches for dasdfmt.  Sebastian managed
  to get rid of the special casing for the console device in the cio
  layer.  And the usual bunch of bug fixes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (59 commits)
  s390/pci: use pci_scan_root_bus
  s390/scm_blk: fix memleak in init function
  s390/scm_blk: allow more cluster size values
  s390/cio: fix irq statistics
  s390/memory hotplug: prevent offline of active memory increments
  s390: remove small stack config option
  s390: system call path micro optimization
  s390: lowcore stack pointer offsets
  s390/uapi: change struct statfs[64] member types to unsigned values
  s390/pci: return correct dma address for offset > PAGE_SIZE
  s390/ptrace: remove empty ifdefs
  s390/compat: remove ptrace compat definitions from uapi header file
  s390/compat: fix compile error for !COMPAT
  s390/compat: fix compat_sys_statfs() memory corruption
  s390/zcore: Fix HSA copy length for last block
  s390/mm,gmap: segment mapping race
  s390/mm,gmap: implement gmap_translate()
  s390/pci: remove disable_device implementation
  s390/pci: disable per default
  s390/pci: return error after failed pci ops
  ...
2013-04-29 08:19:39 -07:00
Linus Torvalds 9d2da7af90 Merge tag 'stable/for-linus-3.10-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen updates from Konrad Rzeszutek Wilk:
 "Features:
   - Populate the boot_params with EDD data.
   - Cleanups in the IRQ code.
  Bug-fixes:
   - CPU hotplug offline/online in PVHVM mode.
   - Re-upload processor PM data after ACPI S3 suspend/resume cycle."

And Konrad gets a gold star for sending the pull request early when he
thought he'd be away for the first week of the merge window (but because
of 3.9 dragging out to -rc8 he then re-sent the reminder on the first
day of the merge window anyway)

* tag 'stable/for-linus-3.10-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: resolve section mismatch warnings in xen-acpi-processor
  xen: Re-upload processor PM data to hypervisor after S3 resume (v2)
  xen/smp: Unifiy some of the PVs and PVHVM offline CPU path
  xen/smp/pvhvm: Don't initialize IRQ_WORKER as we are using the native one.
  xen/spinlock: Disable IRQ spinlock (PV) allocation on PVHVM
  xen/spinlock:  Check against default value of -1 for IRQ line.
  xen/time: Add default value of -1 for IRQ and check for that.
  xen/events: Check that IRQ value passed in is valid.
  xen/time: Fix kasprintf splat when allocating timer%d IRQ line.
  xen/smp/spinlock: Fix leakage of the spinlock interrupt line for every CPU online/offline
  xen/smp: Fix leakage of timer interrupt line for every CPU online/offline.
  xen kconfig: fix select INPUT_XEN_KBDDEV_FRONTEND
  xen: drop tracking of IRQ vector
  x86/xen: populate boot_params with EDD data
2013-04-29 08:16:51 -07:00
Mark Brown a2c05e91b9 Merge remote-tracking branch 'regulator/topic/max8952' into v3.9-rc8 2013-04-28 02:13:43 +01:00
Mark Brown c98cac899b Merge remote-tracking branch 'regulator/topic/ab8500' into v3.9-rc8 2013-04-28 02:13:34 +01:00
Linus Torvalds 4cbbd1d55d Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fix from Olof Johansson:
 "A late-arriving fix for musb on OMAP4, resolving an issue where the
  musb IP won't be clocked and thus not functional.  Small in scope,
  most of the lines changed is a longish comment."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP4: hwmod data: make 'ocp2scp_usb_phy_phy_48m" as the main clock
2013-04-27 13:58:36 -07:00
Olof Johansson d21be237ff Merge tag 'omap-for-v3.9-rc6/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
One MUSB regression fix that I forgot to send earlier. Without
this MUSB no longer works on omap4 based devices.

* tag 'omap-for-v3.9-rc6/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP4: hwmod data: make 'ocp2scp_usb_phy_phy_48m" as the main clock

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-04-26 17:35:21 -07:00
Linus Torvalds 96edcf31b3 Merge branch 'fixes-3.9-late' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull late parisc fixes from Helge Deller:
 "I know it's *very* late in the 3.9 release cycle, but since there
  aren't that many people testing the parisc linux kernel, a few (for
  our port) critical issues just showed up a few days back for the first
  time.

  What's in it?
   - add missing __ucmpdi2 symbol, which is required for btrfs on 32bit
     kernel.
   - change kunmap() macro to static inline function.  This fixes a
     debian/gcc-4.4 build error.
   - add locking when doing PTE updates.  This fixes random userspace
     crashes.
   - disable (optional) -mlong-calls compiler option for modules, else
     modules can't be loaded at runtime.
   - a smart patch by Will Deacon which fixes 64bit put_user() warnings
     on 32bit kernel."

* 'fixes-3.9-late' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates
  parisc: disable -mlong-calls compiler option for kernel modules
  parisc: uaccess: fix compiler warnings caused by __put_user casting
  parisc: Change kunmap macro to static inline function
  parisc: Provide __ucmpdi2 to resolve undefined references in 32 bit builds.
2013-04-26 08:05:01 -07:00
Sebastian Ott 1c21351b72 s390/pci: use pci_scan_root_bus
The pci config space accessors on s390 are (now) smart enough to
figure out if a pci function is available. So instead of calling
pci_create_root_bus and then pci_scan_single_device for each
available function just call pci_scan_root_bus and let the pci core
do the scanning (via config reads on all possible functions) and
device creation.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-04-26 09:07:19 +02:00
Heiko Carstens 581618f226 s390: remove small stack config option
We've seen repeatedly that 8KB stack size on 64 bit kernels
is not sufficient.
So simply remove the config option.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-04-26 09:07:08 +02:00
Martin Schwidefsky 616498813b s390: system call path micro optimization
Add a pointer to the system call table to the thread_info structure.
The TIF_31BIT bit is set or cleared by SET_PERSONALITY exactly once
for the lifetime of a process. With the pointer to the correct system
call table in thread_info the system call code in entry64.S path can
drop the check for TIF_31BIT which saves a couple of instructions.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-04-26 09:07:05 +02:00
Martin Schwidefsky dc7ee00d47 s390: lowcore stack pointer offsets
Store the stack pointers in the lowcore for the kernel stack, the async
stack and the panic stack with the offset required for the first user.
This avoids an unnecessary add instruction on the system call path.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-04-26 09:07:01 +02:00
Tomi Valkeinen 9bf9d47a29 Merge branch '3.10/fb-mmap' into for-next
Merge topic branch to get vm_iomap_memory into use.

Conflicts:
	drivers/video/fbmon.c
2013-04-26 09:14:47 +03:00
H. Peter Anvin 697dfd8844 Merge tag 'efi-urgent' into x86/urgent
* The EFI variable anti-bricking algorithm merged in -rc8 broke booting
   on some Apple machines because they implement EFI spec 1.10, which
   doesn't provide a QueryVariableInfo() runtime function and the logic
   used to check for the existence of that function was insufficient.
   Fix from Josh Boyer.

 * The anti-bricking algorithm also introduced a compiler warning on
   32-bit. Fix from Borislav Petkov.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-04-25 14:00:22 -07:00
John David Anglin bda079d336 parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates
User applications running on SMP kernels have long suffered from instability
and random segmentation faults.  This patch improves the situation although
there is more work to be done.

One of the problems is the various routines in pgtable.h that update page table
entries use different locking mechanisms, or no lock at all (set_pte_at).  This
change modifies the routines to all use the same lock pa_dbit_lock.  This lock
is used for dirty bit updates in the interruption code. The patch also purges
the TLB entries associated with the PTE to ensure that inconsistent values are
not used after the page table entry is updated.  The UP and SMP code are now
identical.

The change also includes a minor update to the purge_tlb_entries function in
cache.c to improve its efficiency.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
2013-04-25 22:37:00 +02:00
Helge Deller cf71130d63 parisc: disable -mlong-calls compiler option for kernel modules
CONFIG_MLONGCALLS was introduced in commit
ec758f9832 to overcome linker issues when linking
huge linux kernels, e.g. with many modules linked in.

But in the kernel module loader there is no support yet for the new relocation
types, which is why modules built with -mlong-calls can't be loaded.
Furthermore, for modules long calls are not really necessary, since we already
use stub sections which resolve long distance calls.

So, let's just disable this compiler option when compiling kernel modules.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-04-25 22:36:50 +02:00
Will Deacon 0f28b62890 parisc: uaccess: fix compiler warnings caused by __put_user casting
When targetting 32-bit processors, __put_user emits a pair of stw
instructions for the 8-byte case. If the type of __val is a pointer, the
marshalling code casts it to the wider integer type of u64, resulting
in the following compiler warnings:

  kernel/signal.c: In function 'copy_siginfo_to_user':
  kernel/signal.c:2752:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  kernel/signal.c:2752:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  [...]

This patch fixes the warnings by removing the marshalling code and using
the correct output modifiers in the __put_{user,kernel}_asm64 macros
so that GCC will allocate the right registers without the need to
extract the two words explicitly.

Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2013-04-25 22:36:42 +02:00
John David Anglin 87be2f88b2 parisc: Change kunmap macro to static inline function
Change kunmap macro to static inline function to fix build error
compiling drivers/base/dma-buf.c.

Without the change, the following error can occur:

   CC      drivers/base/dma-buf.o
drivers/base/dma-buf.c: In function 'dma_buf_kunmap':
drivers/base/dma-buf.c:427:46:
error: macro "kunmap" passed 3 arguments, but takes just 1

I believe parisc is the only arch to implement kunmap using a macro.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
2013-04-25 22:36:31 +02:00