Aneesh Kumar K.V [Fri, 20 Mar 2015 09:39:43 +0000 (20:39 +1100)]
KVM: PPC: Book3S HV: Add helpers for lock/unlock hpte
This adds helper routines for locking and unlocking HPTEs, and uses
them in the rest of the code. We don't change any locking rules in
this patch.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Aneesh Kumar K.V [Fri, 20 Mar 2015 09:39:42 +0000 (20:39 +1100)]
KVM: PPC: Book3S HV: Remove RMA-related variables from code
We don't support real-mode areas now that 970 support is removed.
Remove the remaining details of rma from the code. Also rename
rma_setup_done to hpte_setup_done to better reflect the changes.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Michael Ellerman [Fri, 20 Mar 2015 09:39:41 +0000 (20:39 +1100)]
KVM: PPC: Book3S HV: Add fast real-mode H_RANDOM implementation.
Some PowerNV systems include a hardware random-number generator.
This HWRNG is present on POWER7+ and POWER8 chips and is capable of
generating one 64-bit random number every microsecond. The random
numbers are produced by sampling a set of 64 unstable high-frequency
oscillators and are almost completely entropic.
PAPR defines an H_RANDOM hypercall which guests can use to obtain one
64-bit random sample from the HWRNG. This adds a real-mode
implementation of the H_RANDOM hypercall. This hypercall was
implemented in real mode because the latency of reading the HWRNG is
generally small compared to the latency of a guest exit and entry for
all the threads in the same virtual core.
Userspace can detect the presence of the HWRNG and the H_RANDOM
implementation by querying the KVM_CAP_PPC_HWRNG capability. The
H_RANDOM hypercall implementation will only be invoked when the guest
does an H_RANDOM hypercall if userspace first enables the in-kernel
H_RANDOM implementation using the KVM_CAP_PPC_ENABLE_HCALL capability.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
David Gibson [Thu, 5 Feb 2015 00:53:25 +0000 (11:53 +1100)]
kvmppc: Implement H_LOGICAL_CI_{LOAD,STORE} in KVM
On POWER, storage caching is usually configured via the MMU - attributes
such as cache-inhibited are stored in the TLB and the hashed page table.
This makes correctly performing cache inhibited IO accesses awkward when
the MMU is turned off (real mode). Some CPU models provide special
registers to control the cache attributes of real mode load and stores but
this is not at all consistent. This is a problem in particular for SLOF,
the firmware used on KVM guests, which runs entirely in real mode, but
which needs to do IO to load the kernel.
To simplify this qemu implements two special hypercalls, H_LOGICAL_CI_LOAD
and H_LOGICAL_CI_STORE which simulate a cache-inhibited load or store to
a logical address (aka guest physical address). SLOF uses these for IO.
However, because these are implemented within qemu, not the host kernel,
these bypass any IO devices emulated within KVM itself. The simplest way
to see this problem is to attempt to boot a KVM guest from a virtio-blk
device with iothread / dataplane enabled. The iothread code relies on an
in kernel implementation of the virtio queue notification, which is not
triggered by the IO hcalls, and so the guest will stall in SLOF unable to
load the guest OS.
This patch addresses this by providing in-kernel implementations of the
2 hypercalls, which correctly scan the KVM IO bus. Any access to an
address not handled by the KVM IO bus will cause a VM exit, hitting the
qemu implementation as before.
Note that a userspace change is also required, in order to enable these
new hcall implementations with KVM_CAP_PPC_ENABLE_HCALL.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[agraf: fix compilation]
Signed-off-by: Alexander Graf <agraf@suse.de>
Suresh E. Warrier [Wed, 25 Feb 2015 23:23:53 +0000 (17:23 -0600)]
powerpc: Export __spin_yield
Export __spin_yield so that the arch_spin_unlock() function can
be invoked from a module. This will be required for modules where
we want to take a lock that is also is acquired in hypervisor
real mode. Because we want to avoid running any lockdep code
(which may not be safe in real mode), this lock needs to be
an arch_spinlock_t instead of a normal spinlock.
Signed-off-by: Suresh Warrier <warrier@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
Linus Torvalds [Tue, 14 Apr 2015 00:37:33 +0000 (17:37 -0700)]
Merge tag 'staging-4.1-rc1' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here's the big staging driver patchset for 4.1-rc1.
There's a lot of patches here, the Outreachy application period
happened during this development cycle, so that means that there was a
lot of cleanup patches accepted. Other than the normal coding style
and sparse fixes here, there are some driver updates and work toward
making some of the drivers into "mergable" shape (like the Unisys
drivers.)
All of these have been in linux-next for a while"
* tag 'staging-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1214 commits)
staging: lustre: orthography & coding style
staging: lustre: lnet: lnet: fix error return code
staging: lustre: fix sparse warning
Revert "Staging: sm750fb: Fix C99 Comments"
Staging: rtl8192u: use correct array for debug output
staging: rtl8192e: Remove dead code
staging: rtl8192e: Comment cleanup (style/format)
staging: rtl8192e: Fix indentation in rtllib_rx_auth_resp()
staging: rtl8192e: Decrease nesting of rtllib_rx_auth_resp()
staging: rtl8192e: Divide rtllib_rx_auth()
staging: rtl8192e: Fix PRINTK_WITHOUT_KERN_LEVEL warnings
staging: rtl8192e: Fix DO_WHILE_MACRO_WITH_TRAILING_SEMICOLON warning
staging: rtl8192e: Fix BRACES warning
staging: rtl8192e: Fix LINE_CONTINUATIONS warning
staging: rtl8192e: Fix UNNECESSARY_PARENTHESES warnings
staging: rtl8192e: remove unused EXPORT_SYMBOL_RSL macro
staging: rtl8192e: Fix RETURN_VOID warnings
staging: rtl8192e: Fix UNNECESSARY_ELSE warning
staging: rtl8723au: Remove unneeded comments
staging: rtl8723au: Use __func__ in trace logs
...
Linus Torvalds [Tue, 14 Apr 2015 00:17:32 +0000 (17:17 -0700)]
Merge tag 'driver-core-4.1-rc1' of git://git./linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here's the driver-core / kobject / lz4 tree update for 4.1-rc1.
Everything here has been in linux-next for a while with no reported
issues. It's mostly just coding style cleanups, with other minor
changes in here as well, nothing big"
* tag 'driver-core-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (32 commits)
debugfs: allow bad parent pointers to be passed in
stable_kernel_rules: Add clause about specification of kernel versions to patch.
kobject: WARN as tip when call kobject_get() to a kobject not initialized
lib/lz4: Pull out constant tables
drivers: platform: parse IRQ flags from resources
driver core: Make probe deferral more quiet
drivers/core/of: Add symlink to device-tree from devices with an OF node
device: Add dev_of_node() accessor
drivers: base: fw: fix ret value when loading fw
firmware: Avoid manual device_create_file() calls
drivers/base: cacheinfo: validate device node for all the caches
drivers/base: use tabs where possible in code indentation
driver core: add missing blank line after declaration
drivers: base: node: Delete space after pointer declaration
drivers: base: memory: Use tabs instead of spaces
firmware_class: Fix whitespace and indentation
drivers: base: dma-mapping: Erase blank space after pointer
drivers: base: class: Add a blank line after declarations
attribute_container: fix missing blank lines after declarations
drivers: base: memory: Fix switch indent
...
Linus Torvalds [Tue, 14 Apr 2015 00:07:21 +0000 (17:07 -0700)]
Merge tag 'usb-4.1-rc1' of git://git./linux/kernel/git/gregkh/usb
Pull USB driver updates from Greg KH:
"Here's the big USB (and PHY) driver patchset for 4.1-rc1.
Everything here has been in linux-next, and the full details are below
in the shortlog. Nothing major, just the normal round of new
drivers,api updates, and other changes, mostly in the USB gadget area,
as usual"
* tag 'usb-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (252 commits)
drivers/usb/core: devio.c: Removed an uneeded space before tab
usb: dwc2: host: sleep USB_RESUME_TIMEOUT during resume
usb: chipidea: debug: add low power mode check before print registers
usb: chipidea: udc: bypass pullup DP when gadget connect in OTG fsm mode
usb: core: hub: use new USB_RESUME_TIMEOUT
usb: isp1760: hcd: use new USB_RESUME_TIMEOUT
usb: dwc2: hcd: use new USB_RESUME_TIMEOUT
usb: host: sl811: use new USB_RESUME_TIMEOUT
usb: host: r8a66597: use new USB_RESUME_TIMEOUT
usb: host: oxu210hp: use new USB_RESUME_TIMEOUT
usb: host: fusbh200: use new USB_RESUME_TIMEOUT
usb: host: fotg210: use new USB_RESUME_TIMEOUT
usb: host: isp116x: use new USB_RESUME_TIMEOUT
usb: musb: use new USB_RESUME_TIMEOUT
usb: host: uhci: use new USB_RESUME_TIMEOUT
usb: host: ehci: use new USB_RESUME_TIMEOUT
usb: host: xhci: use new USB_RESUME_TIMEOUT
usb: define a generic USB_RESUME_TIMEOUT macro
usb: musb: dsps: fix build on i386 when COMPILE_TEST is set
ehci-hub: use USB_DT_HUB
...
Linus Torvalds [Mon, 13 Apr 2015 23:47:11 +0000 (16:47 -0700)]
Merge branch 'for-4.1' of git://git./linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
"Nothing too interesting. Rik made cpuset cooperate better with
isolcpus and there are several other cleanup patches"
* 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset, isolcpus: document relationship between cpusets & isolcpus
cpusets, isolcpus: exclude isolcpus from load balancing in cpusets
sched, isolcpu: make cpu_isolated_map visible outside scheduler
cpuset: initialize cpuset a bit early
cgroup: Use kvfree in pidlist_free()
cgroup: call cgroup_subsys->bind on cgroup subsys initialization
Linus Torvalds [Mon, 13 Apr 2015 23:42:16 +0000 (16:42 -0700)]
Merge branch 'for-4.1' of git://git./linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:
- Hannes's patchset implements support for better error reporting
introduced by the new ATA command spec.
- the deperecated pci_ dma API usages have been replaced by dma_ ones.
- a bunch of hardware specific updates and some cleanups.
* 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ata: remove deprecated use of pci api
ahci: st: st_configure_oob must be called after IP is clocked.
ahci: st: Update the ahci_st DT documentation
ahci: st: Update the DT example for how to obtain the PHY.
sata_dwc_460ex: indent an if statement
libata: Add tracepoints
libata-eh: Set 'information' field for autosense
libata: Implement support for sense data reporting
libata: Implement NCQ autosense
libata: use status bit definitions in ata_dump_status()
ide,ata: Rename ATA_IDX to ATA_SENSE
libata: whitespace fixes in ata_to_sense_error()
libata: whitespace cleanup in ata_get_cmd_descript()
libata: use READ_LOG_DMA_EXT
libata: remove ATA_FLAG_LOWTAG
sata_dwc_460ex: re-use hsdev->dev instead of dwc_dev
sata_dwc_460ex: move to generic DMA driver
sata_dwc_460ex: join messages back
sata: xgene: add ACPI support for APM X-Gene SATA ports
ata: sata_mv: add proper definitions for LP_PHY_CTL register values
Linus Torvalds [Mon, 13 Apr 2015 23:19:18 +0000 (16:19 -0700)]
Merge branch 'for-4.1' of git://git./linux/kernel/git/tj/wq
Pull workqueue updates from Tejun Heo:
"Workqueue now prints debug information at the end of sysrq-t which
should be helpful when tracking down suspected workqueue stalls. It
only prints out the ones with something currently going on so it
shouldn't add much output in most cases"
* 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Reorder sysfs code
percpu: Fix trivial typos in comments
workqueue: dump workqueues on sysrq-t
workqueue: keep track of the flushing task and pool manager
workqueue: make the workqueues list RCU walkable
Linus Torvalds [Mon, 13 Apr 2015 22:54:50 +0000 (15:54 -0700)]
Merge branch 'irq-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq core updates from Thomas Gleixner:
"Managerial summary:
Core code:
- final removal of IRQF_DISABLED
- new state save/restore functions for virtualization support
- wakeup support for stacked irqdomains
- new function to solve the netpoll synchronization problem
irqchips:
- new driver for STi based devices
- new driver for Vybrid MSCM
- massive cleanup of the GIC driver by moving the GIC-addons to
stacked irqdomains
- the usual pile of fixes and updates to the various chip drivers"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
irqchip: GICv3: Add support for irq_[get, set]_irqchip_state()
irqchip: GIC: Add support for irq_[get, set]_irqchip_state()
genirq: Allow the irqchip state of an IRQ to be save/restored
genirq: MSI: Fix freeing of unallocated MSI
irqchip: renesas-irqc: Add wake-up support
irqchip: armada-370-xp: Allow using wakeup source
irqchip: mips-gic: Add new functions to start/stop the GIC counter
irqchip: tegra: Add Tegra210 support
irqchip: digicolor: Move digicolor_set_gc to init section
irqchip: renesas-irqc: Add functional clock to bindings
irqchip: renesas-irqc: Add minimal runtime PM support
irqchip: renesas-irqc: Add more register documentation
DT: exynos: update PMU binding
ARM: exynos4/5: convert pmu wakeup to stacked domains
irqchip: gic: Don't complain in gic_get_cpumask() if UP system
ARM: zynq: switch from gic_arch_extn to gic_set_irqchip_flags
ARM: ux500: switch from gic_arch_extn to gic_set_irqchip_flags
ARM: shmobile: remove use of gic_arch_extn.irq_set_wake
irqchip: gic: Add an entry point to set up irqchip flags
ARM: omap: convert wakeupgen to stacked domains
...
Linus Torvalds [Mon, 13 Apr 2015 22:45:47 +0000 (15:45 -0700)]
Merge tag 'pci-v4.1-changes' of git://git./linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
"Enumeration
- Read capability list as dwords, not bytes (Sean O. Stalley)
Resource management
- Don't check for PNP overlaps with unassigned PCI BARs (Bjorn Helgaas)
- Mark invalid BARs as unassigned (Bjorn Helgaas)
- Show driver, BAR#, and resource on pci_ioremap_bar() failure (Bjorn Helgaas)
- Fail pci_ioremap_bar() on unassigned resources (Bjorn Helgaas)
- Assign resources before drivers claim devices (Yijing Wang)
- Claim bus resources before pci_bus_add_devices() (Yijing Wang)
Power management
- Optimize device state transition delays (Aaron Lu)
- Don't clear ASPM bits when the FADT declares it's unsupported (Matthew Garrett)
Virtualization
- Add ACS quirks for Intel 1G NICs (Alex Williamson)
IOMMU
- Add ptr to OF node arg to of_iommu_configure() (Murali Karicheri)
- Move of_dma_configure() to device.c to help re-use (Murali Karicheri)
- Fix size when dma-range is not used (Murali Karicheri)
- Add helper functions pci_get[put]_host_bridge_device() (Murali Karicheri)
- Add of_pci_dma_configure() to update DMA configuration (Murali Karicheri)
- Update DMA configuration from DT (Murali Karicheri)
- dma-mapping: limit IOMMU mapping size (Murali Karicheri)
- Calculate device DMA masks based on DT dma-range size (Murali Karicheri)
ARM Versatile host bridge driver
- Check for devm_ioremap_resource() failures (Jisheng Zhang)
Broadcom iProc host bridge driver
- Add Broadcom iProc PCIe driver (Ray Jui)
Marvell MVEBU host bridge driver
- Add suspend/resume support (Thomas Petazzoni)
Renesas R-Car host bridge driver
- Fix position of MSI enable bit (Nobuhiro Iwamatsu)
- Write zeroes to reserved PCIEPARL bits (Nobuhiro Iwamatsu)
- Change PCIEPARL and PCIEPARH to PCIEPALR and PCIEPAUR (Nobuhiro Iwamatsu)
- Verify that mem_res is 64K-aligned (Nobuhiro Iwamatsu)
Samsung Exynos host bridge driver
- Fix INTx enablement statement termination error (Jaehoon Chung)
Miscellaneous
- Make a shareable UUID for PCI firmware ACPI _DSM (Aaron Lu)
- Clarify policy for vendor IDs in pci.txt (Michael S. Tsirkin)"
* tag 'pci-v4.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (36 commits)
PCI: Read capability list as dwords, not bytes
PCI: layerscape: Simplify platform_get_resource_byname() failure checking
PCI: keystone: Don't dereference possible NULL pointer
PCI: versatile: Check for devm_ioremap_resource() failures
PCI: Don't clear ASPM bits when the FADT declares it's unsupported
PCI: Clarify policy for vendor IDs in pci.txt
PCI/ACPI: Optimize device state transition delays
PCI: Export pci_find_host_bridge() for use inside PCI core
PCI: Make a shareable UUID for PCI firmware ACPI _DSM
PCI: Fix typo in Thunderbolt kernel message
PCI: exynos: Fix INTx enablement statement termination error
PCI: iproc: Add Broadcom iProc PCIe support
PCI: iproc: Add DT docs for Broadcom iProc PCIe driver
PCI: Export symbols required for loadable host driver modules
PCI: Add ACS quirks for Intel 1G NICs
PCI: mvebu: Add suspend/resume support
PCI: Cleanup control flow
sparc/PCI: Claim bus resources before pci_bus_add_devices()
PCI: Assign resources before drivers claim devices (pci_scan_root_bus())
PCI: Fail pci_ioremap_bar() on unassigned resources
...
Linus Torvalds [Mon, 13 Apr 2015 22:36:31 +0000 (15:36 -0700)]
Merge tag 'hsi-for-4.1' of git://git./linux/kernel/git/sre/linux-hsi
Pull HSI changes from Sebastian Reichel:
- nokia-modem: support speech data
- misc fixes
* tag 'hsi-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
HSI: cmt_speech: fix error return code
HSI: nokia-modem: Add cmt-speech support
HSI: cmt_speech: Add cmt-speech driver
HSI: nokia-modem: fix error return code
Linus Torvalds [Mon, 13 Apr 2015 22:21:34 +0000 (15:21 -0700)]
Merge tag 'for-v4.1' of git://git.infradead.org/battery-2.6
Pull power supply and reset changes from Sebastian Reichel:
- new API for safe access of power supply function attrs
- devres support for power supply (un)registration
- new drivers / chips:
- generic syscon based poweroff driver
- iio & charger driver for da9150
- fuel gauge driver for axp288
- bq27x00: add support for bq27510
- bq2415x: add support for bq24157s
- twl4030-madc-battery: convert to iio consumer
- misc fixes
* tag 'for-v4.1' of git://git.infradead.org/battery-2.6: (66 commits)
power: twl4030_madc_battery: Add missing MODULE_ALIAS
power: twl4030-madc-battery: Convert to iio consumer.
dt: power: Add docs for generic SYSCON poweroff driver.
power: reset: Add generic SYSCON register mapped poweroff.
power: max17042_battery: add missed blank
power: max17042_battery: Use reg type instead of chip type
power/reset: at91: big endian fixes for atsama5d3x
power_supply: charger-manager: Fix dereferencing of ERR_PTR
HID: input: Fix NULL pointer dereference when power_supply_register fails
power: constify of_device_id array
power/reset/rmobile-reset.c: Fix !HAS_IOMEM build
power_supply: 88pm860x_charger: Fix possible NULL pointer dereference and use of initialized variable
arm: mach-pxa: Decrement the power supply's device reference counter
mfd: ab8500: Decrement the power supply's device reference counter
power_supply: bq2415x_charger: Decrement the power supply's device reference counter
power_supply: 88pm860x_charger: Decrement the power supply's device reference counter
x86/olpc/xo15/sci: Use newly added power_supply_put API
x86/olpc/xo1/sci: Use newly added power_supply_put API
power_supply: charger-manager: Decrement the power supply's device reference counter
power_supply: Increment power supply use counter when obtaining references
...
Linus Torvalds [Mon, 13 Apr 2015 22:13:25 +0000 (15:13 -0700)]
Merge tag 'regulator-v4.1' of git://git./linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"Another release, another set of regulator updates. Not much of it is
showing up in the code yet but there's been a lot of discussion going
on about how to enhance the regulator API to work better with modern
SoCs which have a microcontroller sitting between Linux and the
hardware.
I'm hopeful that'll start to come through into mainline for v4.2 but
it's not quite there for v4.1 - what we do have (along with the usual
small updates is) is:
- work from Bjorn Andersson on refactoring the configuration of
regulator loading interfaces to be useful for use with
microcontrollers, the existing interfaces were never actually
useful for anything as-is since nobody was willing to put enough
data into public code.
- a summary tree display in debugfs from Heiko Stübner.
- support for act6000 regulators"
* tag 'regulator-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (34 commits)
regulator: max8660: Handle empty regulator data
regulator: output current-limit for all regulators in summary
regulator: add a summary tree in debugfs
regulator: qcom: Tidy up probe()
regulator: qcom: Rework to single platform device
regulator: qcom: Refactor of-parsing code
regulator: qcom: Don't enable DRMS in driver
regulator: max8660: fix assignment of pdata to data that becomes dead
regulator: Defer lookup of supply to regulator_get
mfd: max77693: Remove unused structures
regulator: max77693: Let core parse DT and drop board files support
regulator: Ensure unique regulator debugfs directory names
regulator: stw481x: Remove unused fields from struct stw481x
regulator: palmas: Add has_regen3 check for TPS659038
regulator: constify of_device_id array
regulator: fixes for regulator_set_optimum_mode name change
regulator: Drop temporary regulator_set_optimum_mode wrapper
usb: phy: phy-msm-usb: Rename regulator_set_optimum_mode
usb: phy: ab8500-usb: Rename regulator_set_optimum_mode
ufs: Rename of regulator_set_optimum_mode
...
Linus Torvalds [Mon, 13 Apr 2015 22:05:40 +0000 (15:05 -0700)]
Merge tag 'spi-v4.1' of git://git./linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"Only one framework update this time around, a change from Lars-Peter
to move full to pm_ops and remove the legacy bus PM ops. Otherwise
it's all driver updates:
- make the spidev driver complain loudly if registered as spidev with
DT rather than with a compatible string, hopefully helping people
avoid making that mistake.
- error handling and robustness fixes for the Designware and Intel
MID drivers from Andy Shevchenko.
- substantial performance improvements for the Raspberry Pi driver
from Martin Sperl.
- several new features for spidev_test from Adrian Remonda and Ian
Abbott"
* tag 'spi-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (75 commits)
spi: bcm2835: enabling polling mode for transfers shorter than 30us
spi: bcm2835: transform native-cs to gpio-cs on first spi_setup
spi: img-spfi: Control CS lines with GPIO
spi: img-spfi: Reset controller after each message
spi: img-spfi: Implement a handle_err() callback
spi: img-spfi: Setup TRANSACTION register before CONTROL register
spi: Make master->handle_err() callback optional to avoid crashes
spi: img-spfi: Limit bit clock to 1/4th of input clock
spi: img-spfi: Implement a prepare_message() callback
spi: fsl-dspi: Add ~50ns delay between cs and sck
spi: fsl-dspi: Add cs-sck delays
spi: fsl-dspi: Fix clock rate scale values
spi: signedness bug in qspi_trigger_transfer_out_int()
spi: imx: read back the RX/TX watermark levels earlier
spi: spi-bfin5xx: Initialize cr_width in bfin_spi_pump_transfers()
spi: bitbang: only toggle bitchanges
spi: pxa2xx: missing break in pxa2xx_ssp_get_clk_div()
spi: fsl-dspi: Fix clock rate scale values
spi: Using Trigger number to transmit/receive data
spi: bcm2835: fill FIFO before enabling interrupts to reduce interrupts/message
...
Linus Torvalds [Mon, 13 Apr 2015 22:00:55 +0000 (15:00 -0700)]
Merge tag 'regmap-v4.1' of git://git./linux/kernel/git/broonie/regmap
Pull regmap update from Mark Brown:
"Just one patch for regmap this time around, a change from Steven
Rostedt to prettify the way we're making the regmap internal header
available to the trace events (it turns out that the trace subsystem
doesn't actually need to be in trace/events)"
* tag 'regmap-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Move tracing header into drivers/base/regmap
Linus Torvalds [Mon, 13 Apr 2015 21:53:03 +0000 (14:53 -0700)]
Merge tag 'mmc-v4.1' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Add support for marking HPI as broken through devicetree
- Enable runtime PM management of host devices
- Remove the ->enable|disable() callbacks
- Restructure code and cleanups
- Refreshed some of the MMC sections in MAINTAINERS
MMC host:
- dw_mmc: HS400 mode support
- dw_mmc: Add the cmd11 timer to detect a timeout
- dw_mmc: Endian agnostic IO accessors
- dw_mmc: Bugfixes
- sh_mmcif: Add exclusion between cmd and interrupt
- omap_hsmmc: Hibernation support
- omap_hsmmc: Rework and simplify cover/card detect
- omap_hsmmc: Stop using ->enable|disable() callbacks
- atmel-mci: Endian agnostic IO
- sunxi: Enable MMC_CAP_SDIO_IRQ
- sdhci-st: Add support for the stih407 family silicon
- sdhci-st: UHS card support in SDR104 mode
- sdhci-st: HS200 mode support
- sdhci-esdhc-imx: Use common mmc DT parser
- sdhci-of-arasan: Use common mmc DT parser
- sdhci-iproc: Add new driver for Broadcom IPROC SDHCI controller
- sdhci-tegra: Convert to GPIO descriptors
- sdhci-tegra: Optmize write_w path for tegra114 and later
- sdhci-sirf: Update tuning procedure
- sdhci: Fix card presence logic
- sdhci: Cleanups and consolidation"
* tag 'mmc-v4.1' of git://git.linaro.org/people/ulf.hansson/mmc: (79 commits)
mmc: sdhci-st: Update ST SDHCI binding documentation.
mmc: sdhci-st: Update the quirks for this controller.
mmc: sdhci-st: Add sdhci_st_set_uhs_signaling function.
mmc: sdhci-st: Add st_mmcss_cconfig function to configure mmcss glue registers.
mmc: sdhci-st: Add delay management functions for top registers (eMMC).
mmc: sdhci-st: Add support for de-asserting reset signal and top regs resource
mmc: sdhci-st: Add macros for register offsets and bitfields for mmcss glue regs
mmc: sdhci-esdhc-imx: Call mmc_of_parse()
mmc: dw_mmc: Add locking around cmd11 timer
mmc: dw_mmc: Add a return in an unexpected cmd11 timeout
mmc: dw_mmc: Increase cmd11 timeout to 500ms
mmc: dw_mmc: fix fifo ordering in big endian
mmc: dw_mmc: change idmac descriptor files to __le32
mmc: dw_mmc: make IO accessors endian agnostic
mmc: core: Convert the error field in struct mmc_command|data into an int
mmc: sdhci-of-arasan: Call OF parsing for MMC
mmc: sdhci-pci: fix 64 BIT DMA quirks for rtsx
mmc: Add support for marking hpi as broken through devicetree
mmc: sdhci-tegra: convert to use GPIO descriptors
mmc: omap_hsmmc: use generic slot-gpio isr to manage card detect pin
...
Linus Torvalds [Mon, 13 Apr 2015 21:47:37 +0000 (14:47 -0700)]
Merge tag 'edac_for_4.1' of git://git./linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
- convert a bunch of drivers to static attribute groups (Takashi Iwai)
- misc cleanups
* tag 'edac_for_4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC: Constify of_device_id array
EDAC, i82443bxgx: Don't export static symbol
EDAC, amd64_edac: Get rid of per-node driver instances
EDAC: Properly unwind on failure path in edac_init()
EDAC: highbank: Use static attribute groups for sysfs entries
EDAC: octeon: Use static attribute groups for sysfs entries
EDAC: mpc85xx: Use static attribute groups for sysfs entries
EDAC: i7core: Use static attribute groups for sysfs entries
EDAC: i7core: Return proper error codes for kzalloc() errors
EDAC: amd64: Use static attribute groups
EDAC: Allow to pass driver-specific attribute groups
EDAC: Use static attribute groups for managing sysfs entries
EDAC: Delete unnecessary checks before pci_dev_put()
Linus Torvalds [Mon, 13 Apr 2015 21:39:25 +0000 (14:39 -0700)]
Merge tag 'hwmon-for-linus-v4.1' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"Support for new chips:
- add support for IT8620E, IT8781F, IT8786E, and IT8790E to it87
driver
- add driver for NCT7904
Functional improvements:
- support for new devicetree structure in ibmpowernv driver
- register pwm-fan and gpio-fan drivers as thermal cooling devices
- various minor cleanup and improvements to it87, nct6775, jc42,
ibmpex, and coretemp drivers"
* tag 'hwmon-for-linus-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (43 commits)
hwmon: (pwm-fan) Update the duty cycle inorder to control the pwm-fan
hwmon: (it87) Use feature macros on sio_data
hwmon: (ibmpowernv) Fix build error seen for some configurations
hwmon: (gpio-fan) Move the thermal registration after registration is complete
hwmon: (ibmpowernv) pretty print labels
hwmon: (ibmpowernv) add a label attribute
hwmon: (ibmpowernv) add support for the new device tree
hwmon: (ibmpowernv) add a helper routine create_hwmon_attr
hwmon: (it87) Add support for 6th fan of IT8620E
hwmon: (it87) Add support for IT8620E
hwmon: (it87) Add support for IT8790E
hwmon: (it87) Introduce feature flag to reflect internal in7 sensor
hwmon: (it87) Introduce configuration field for chip suffix
hwmon: (it87) Fix PWM frequency display for chips with newer PWM control
hwmon: (it87) Fix pwm sysfs attribute removal
hwmon: (ibmpowernv) do not use the OPAL index for hwmon attribute names
hwmon: (ibmpowernv) change create_hwmon_attr_name() prototype
hwmon: (ibmpowernv) add a convert_opal_attr_name() routine
hwmon: (ibmpowernv) add a get_sensor_type() routine
hwmon: (ibmpowernv) replace AMBIENT_TEMP by TEMP
...
Linus Torvalds [Mon, 13 Apr 2015 21:19:26 +0000 (14:19 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/egtvedt/linux-avr32
Pull avr32 fix from Hans-Christian Egtvedt.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32:
avr32: fix integer overflow in ELF_ET_DYN_BASE
Linus Torvalds [Mon, 13 Apr 2015 21:18:27 +0000 (14:18 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/mac: Fix out-of-bounds array index in OSS IRQ source initialization
m68k/pci: Remove a superflous KERN_ERR
m68k/defconfig: Update defconfigs for v4.0-rc1
m68k/q40: Make NE2000 builtin instead of modular
m68k: Remove FSF address
Linus Torvalds [Mon, 13 Apr 2015 20:36:45 +0000 (13:36 -0700)]
Merge branch 'x86-vdso-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 vdso changes from Ingo Molnar:
"Misc vDSO updates"
* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vdso: Remove x32 intermediates during 'make clean'
x86/vdso: Teach 'make clean' to remove generated vdso-image-*.c files
x86/vdso32/syscall.S: Do not load __USER32_DS to %ss
x86/vdso: Fix the x86 vdso2c tool includes
Linus Torvalds [Mon, 13 Apr 2015 20:34:46 +0000 (13:34 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
"Leftover from 4.0
Fix a local stack variable corruption with certain kdump usage
patterns (Dave Young)"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/numa: Fix kernel stack corruption in numa_init()->numa_clear_kernel_node_hotplug()
Linus Torvalds [Mon, 13 Apr 2015 20:33:20 +0000 (13:33 -0700)]
Merge branch 'x86-ras-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 RAS changes from Ingo Molnar:
"The main changes in this cycle were:
- Simplify the CMCI storm logic on Intel CPUs after yet another
report about a race in the code (Borislav Petkov)
- Enable the MCE threshold irq on AMD CPUs by default (Aravind
Gopalakrishnan)
- Add AMD-specific MCE-severity grading function. Further error
recovery actions will be based on its output (Aravind Gopalakrishnan)
- Documentation updates (Borislav Petkov)
- ... assorted fixes and cleanups"
* 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce/severity: Fix warning about indented braces
x86/mce: Define mce_severity function pointer
x86/mce: Add an AMD severities-grading function
x86/mce: Reindent __mcheck_cpu_apply_quirks() properly
x86/mce: Use safe MSR accesses for AMD quirk
x86/MCE/AMD: Enable thresholding interrupts by default if supported
x86/MCE: Make mce_panic() fatal machine check msg in the same pattern
x86/MCE/intel: Cleanup CMCI storm logic
Documentation/acpi/einj: Correct and streamline text
x86/MCE/AMD: Drop bogus const modifier from AMD's bank4_names()
Linus Torvalds [Mon, 13 Apr 2015 20:32:35 +0000 (13:32 -0700)]
Merge branch 'x86-platform-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 platform change from Ingo Molnar:
"An Intel Quark SoC fix"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/intel/quark: Run IMR self-test on IMR capble hw only
Linus Torvalds [Mon, 13 Apr 2015 20:31:32 +0000 (12:31 -0800)]
Merge branch 'x86-mm-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 mm changes from Ingo Molnar:
"The main changes in this cycle were:
- reduce the x86/32 PAE per task PGD allocation overhead from 4K to
0.032k (Fenghua Yu)
- early_ioremap/memunmap() usage cleanups (Juergen Gross)
- gbpages support cleanups (Luis R Rodriguez)
- improve AMD Bulldozer (family 0x15) ASLR I$ aliasing workaround to
increase randomization by 3 bits (per bootup) (Hector
Marco-Gisbert)
- misc fixlets"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Improve AMD Bulldozer ASLR workaround
x86/mm/pat: Initialize __cachemode2pte_tbl[] and __pte2cachemode_tbl[] in a bit more readable fashion
init.h: Clean up the __setup()/early_param() macros
x86/mm: Simplify probe_page_size_mask()
x86/mm: Further simplify 1 GB kernel linear mappings handling
x86/mm: Use early_param_on_off() for direct_gbpages
init.h: Add early_param_on_off()
x86/mm: Simplify enabling direct_gbpages
x86/mm: Use IS_ENABLED() for direct_gbpages
x86/mm: Unexport set_memory_ro() and set_memory_rw()
x86/mm, efi: Use early_ioremap() in arch/x86/platform/efi/efi-bgrt.c
x86/mm: Use early_memunmap() instead of early_iounmap()
x86/mm/pat: Ensure different messages in STRICT_DEVMEM and PAT cases
x86/mm: Reduce PAE-mode per task pgd allocation overhead from 4K to 32 bytes
Linus Torvalds [Mon, 13 Apr 2015 20:25:33 +0000 (13:25 -0700)]
Merge branch 'x86-microcode-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 microcode changes from Ingo Molnar:
"Microcode driver updates: mostly cleanups but also some fixes
(Borislav Petkov)"
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode/amd: Drop the pci_ids.h dependency
x86/microcode/intel: Fix printing of microcode blobs in show_saved_mc()
x86/microcode/intel: Check scan_microcode()'s retval
x86/microcode/intel: Sanitize microcode_pointer()
x86/microcode/intel: Move mc arg last in get_matching_{microcode|sig}
x86/microcode/intel: Simplify generic_load_microcode_early()
x86/microcode: Consolidate family,model, ... code
x86/microcode/intel: Rename update_match_revision()
x86/microcode/intel: Sanitize _save_mc()
x86/microcode/intel: Make _save_mc() return the updated saved count
x86/microcode/intel: Simplify load_ucode_intel_bsp()
x86/microcode/intel: Get rid of last arg to load_ucode_intel_bsp()
x86/microcode/intel: Do the mc_saved_src NULL check first
x86/microcode/intel: Check if microcode was found before applying
x86/microcode/intel: Fix out of bounds memory access to the extended header
Linus Torvalds [Mon, 13 Apr 2015 20:24:23 +0000 (13:24 -0700)]
Merge branch 'x86-fpu-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fpu changes from Ingo Molnar:
"Various x86 FPU handling cleanups, refactorings and fixes (Borislav
Petkov, Oleg Nesterov, Rik van Riel)"
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86/fpu: Kill eager_fpu_init_bp()
x86/fpu: Don't allocate fpu->state for swapper/0
x86/fpu: Rename drop_init_fpu() to fpu_reset_state()
x86/fpu: Fold __drop_fpu() into its sole user
x86/fpu: Don't abuse drop_init_fpu() in flush_thread()
x86/fpu: Use restore_init_xstate() instead of math_state_restore() on kthread exec
x86/fpu: Introduce restore_init_xstate()
x86/fpu: Document user_fpu_begin()
x86/fpu: Factor out memset(xstate, 0) in fpu_finit() paths
x86/fpu: Change xstateregs_get()/set() to use ->xsave.i387 rather than ->fxsave
x86/fpu: Don't abuse FPU in kernel threads if use_eager_fpu()
x86/fpu: Always allow FPU in interrupt if use_eager_fpu()
x86/fpu: __kernel_fpu_begin() should clear fpu_owner_task even if use_eager_fpu()
x86/fpu: Also check fpu_lazy_restore() when use_eager_fpu()
x86/fpu: Use task_disable_lazy_fpu_restore() helper
x86/fpu: Use an explicit if/else in switch_fpu_prepare()
x86/fpu: Introduce task_disable_lazy_fpu_restore() helper
x86/fpu: Move lazy restore functions up a few lines
x86/fpu: Change math_error() to use unlazy_fpu(), kill (now) unused save_init_fpu()
x86/fpu: Don't do __thread_fpu_end() if use_eager_fpu()
...
Linus Torvalds [Mon, 13 Apr 2015 20:23:34 +0000 (13:23 -0700)]
Merge branch 'x86-debug-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 debug changes from Ingo Molnar:
"Stack printing fixlets"
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kernel: Use kstack_end() in dumpstack_64.c
x86/kernel: Fix output of show_stack_log_lvl()
Linus Torvalds [Mon, 13 Apr 2015 20:21:51 +0000 (13:21 -0700)]
Merge branch 'x86-cpu-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 cacheinfo sysfs changes from Ingo Molnar:
"This tree converts the x86 cacheinfo sysfs code to use the generic
code in drivers/base/cacheinfo.c.
It's not intended to change the sysfs ABI:
'This patch neither alters any existing sysfs entries nor their
formating, however since the generic cacheinfo has switched to
use the device attributes instead of the traditional raw
kobjects, a directory named 'power' along with its standard
attributes are added similar to any other device'"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/cacheinfo: Fix cache_get_priv_group() for Intel processors
x86/cacheinfo: Move cacheinfo sysfs code to generic infrastructure
Linus Torvalds [Mon, 13 Apr 2015 20:20:54 +0000 (13:20 -0700)]
Merge branch 'x86-cleanups-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
"Various cleanups"
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/iommu: Fix header comments regarding standard and _FINISH macros
x86/earlyprintk: Put CONFIG_PCI-only functions under the #ifdef
x86: Fix up obsolete __cpu_set() function usage
Linus Torvalds [Mon, 13 Apr 2015 20:19:59 +0000 (13:19 -0700)]
Merge branch 'x86-build-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 build changes from Ingo Molnar:
"Small cleanups and fixes"
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kexec: Cleanup KEXEC_VERIFY_SIG Kconfig help text
x86/build/defconfig: Enable USB_EHCI_TT_NEWSCHED=y
x86/build: Fix mkcapflags.sh bash-ism
x86/Kconfig: Simplify X86_UP_APIC handling
x86/Kconfig: Simplify X86_IO_APIC dependencies
x86/Kconfig: Avoid issuing pointless turned off entries to .config
Linus Torvalds [Mon, 13 Apr 2015 20:19:10 +0000 (13:19 -0700)]
Merge branch 'x86-boot-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 boot changes from Ingo Molnar:
"A number of cleanups"
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Standardize strcmp()
x86/boot/64: Remove pointless early_printk() message
x86/boot/video: Move the 'video_segment' variable to video.c
Linus Torvalds [Mon, 13 Apr 2015 20:16:36 +0000 (13:16 -0700)]
Merge branch 'x86-asm-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 asm changes from Ingo Molnar:
"There were lots of changes in this development cycle:
- over 100 separate cleanups, restructuring changes, speedups and
fixes in the x86 system call, irq, trap and other entry code, part
of a heroic effort to deobfuscate a decade old spaghetti asm code
and its C code dependencies (Denys Vlasenko, Andy Lutomirski)
- alternatives code fixes and enhancements (Borislav Petkov)
- simplifications and cleanups to the compat code (Brian Gerst)
- signal handling fixes and new x86 testcases (Andy Lutomirski)
- various other fixes and cleanups
By their nature many of these changes are risky - we tried to test
them well on many different x86 systems (there are no known
regressions), and they are split up finely to help bisection - but
there's still a fair bit of residual risk left so caveat emptor"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (148 commits)
perf/x86/64: Report regs_user->ax too in get_regs_user()
perf/x86/64: Simplify regs_user->abi setting code in get_regs_user()
perf/x86/64: Do report user_regs->cx while we are in syscall, in get_regs_user()
perf/x86/64: Do not guess user_regs->cs, ss, sp in get_regs_user()
x86/asm/entry/32: Tidy up JNZ instructions after TESTs
x86/asm/entry/64: Reduce padding in execve stubs
x86/asm/entry/64: Remove GET_THREAD_INFO() in ret_from_fork
x86/asm/entry/64: Simplify jumps in ret_from_fork
x86/asm/entry/64: Remove a redundant jump
x86/asm/entry/64: Optimize [v]fork/clone stubs
x86/asm/entry: Zero EXTRA_REGS for stub32_execve() too
x86/asm/entry/64: Move stub_x32_execvecloser() to stub_execveat()
x86/asm/entry/64: Use common code for rt_sigreturn() epilogue
x86/asm/entry/64: Add forgotten CFI annotation
x86/asm/entry/irq: Simplify interrupt dispatch table (IDT) layout
x86/asm/entry/64: Move opportunistic sysret code to syscall code path
x86, selftests: Add sigreturn selftest
x86/alternatives: Guard NOPs optimization
x86/asm/entry: Clear EXTRA_REGS for all executable formats
x86/signal: Remove pax argument from restore_sigcontext
...
Linus Torvalds [Mon, 13 Apr 2015 20:15:09 +0000 (13:15 -0700)]
Merge branch 'x86-apic-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 apic changes from Ingo Molnar:
"Changes:
- SGI UV APIC driver updates
- dead code removal"
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic/uv: Update the UV APIC HUB check
x86/apic/uv: Update the UV APIC driver check
x86/apic/uv: Update the APIC UV OEM check
x86/apic: Remove verify_local_APIC()
Linus Torvalds [Mon, 13 Apr 2015 18:08:28 +0000 (11:08 -0700)]
Merge branch 'timers-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer updates from Ingo Molnar:
"The main changes in this cycle were:
- clockevents state machine cleanups and enhancements (Viresh Kumar)
- clockevents broadcast notifier horror to state machine conversion
and related cleanups (Thomas Gleixner, Rafael J Wysocki)
- clocksource and timekeeping core updates (John Stultz)
- clocksource driver updates and fixes (Ben Dooks, Dmitry Osipenko,
Hans de Goede, Laurent Pinchart, Maxime Ripard, Xunlei Pang)
- y2038 fixes (Xunlei Pang, John Stultz)
- NMI-safe ktime_get_raw_fast() and general refactoring of the clock
code, in preparation to perf's per event clock ID support (Peter
Zijlstra)
- generic sched/clock fixes, optimizations and cleanups (Daniel
Thompson)
- clockevents cpu_down() race fix (Preeti U Murthy)"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (94 commits)
timers/PM: Drop unnecessary braces from tick_freeze()
timers/PM: Fix up tick_unfreeze()
timekeeping: Get rid of stale comment
clockevents: Cleanup dead cpu explicitely
clockevents: Make tick handover explicit
clockevents: Remove broadcast oneshot control leftovers
sched/idle: Use explicit broadcast oneshot control function
ARM: Tegra: Use explicit broadcast oneshot control function
ARM: OMAP: Use explicit broadcast oneshot control function
intel_idle: Use explicit broadcast oneshot control function
ACPI/idle: Use explicit broadcast control function
ACPI/PAD: Use explicit broadcast oneshot control function
x86/amd/idle, clockevents: Use explicit broadcast oneshot control functions
clockevents: Provide explicit broadcast oneshot control functions
clockevents: Remove the broadcast control leftovers
ARM: OMAP: Use explicit broadcast control function
intel_idle: Use explicit broadcast control function
cpuidle: Use explicit broadcast control function
ACPI/processor: Use explicit broadcast control function
ACPI/PAD: Use explicit broadcast control function
...
Linus Torvalds [Mon, 13 Apr 2015 17:47:34 +0000 (10:47 -0700)]
Merge branch 'sched-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler changes from Ingo Molnar:
"Major changes:
- Reworked CPU capacity code, for better SMP load balancing on
systems with assymetric CPUs. (Vincent Guittot, Morten Rasmussen)
- Reworked RT task SMP balancing to be push based instead of pull
based, to reduce latencies on large CPU count systems. (Steven
Rostedt)
- SCHED_DEADLINE support updates and fixes. (Juri Lelli)
- SCHED_DEADLINE task migration support during CPU hotplug. (Wanpeng Li)
- x86 mwait-idle optimizations and fixes. (Mike Galbraith, Len Brown)
- sched/numa improvements. (Rik van Riel)
- various cleanups"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits)
sched/core: Drop debugging leftover trace_printk call
sched/deadline: Support DL task migration during CPU hotplug
sched/core: Check for available DL bandwidth in cpuset_cpu_inactive()
sched/deadline: Always enqueue on previous rq when dl_task_timer() fires
sched/core: Remove unused argument from init_[rt|dl]_rq()
sched/deadline: Fix rt runtime corruption when dl fails its global constraints
sched/deadline: Avoid a superfluous check
sched: Improve load balancing in the presence of idle CPUs
sched: Optimize freq invariant accounting
sched: Move CFS tasks to CPUs with higher capacity
sched: Add SD_PREFER_SIBLING for SMT level
sched: Remove unused struct sched_group_capacity::capacity_orig
sched: Replace capacity_factor by usage
sched: Calculate CPU's usage statistic and put it into struct sg_lb_stats::group_usage
sched: Add struct rq::cpu_capacity_orig
sched: Make scale_rt invariant with frequency
sched: Make sched entity usage tracking scale-invariant
sched: Remove frequency scaling from cpu_capacity
sched: Track group sched_entity usage contributions
sched: Add sched_avg::utilization_avg_contrib
...
Linus Torvalds [Mon, 13 Apr 2015 17:27:28 +0000 (10:27 -0700)]
Merge branch 'locking-core-for-linus' of git://git./linux/kernel/git/tip/tip
Pull core locking changes from Ingo Molnar:
"Main changes:
- jump label asm preparatory work for PowerPC (Anton Blanchard)
- rwsem optimizations and cleanups (Davidlohr Bueso)
- mutex optimizations and cleanups (Jason Low)
- futex fix (Oleg Nesterov)
- remove broken atomicity checks from {READ,WRITE}_ONCE() (Peter
Zijlstra)"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
powerpc, jump_label: Include linux/jump_label.h to get HAVE_JUMP_LABEL define
jump_label: Allow jump labels to be used in assembly
jump_label: Allow asm/jump_label.h to be included in assembly
locking/mutex: Further simplify mutex_spin_on_owner()
locking: Remove atomicy checks from {READ,WRITE}_ONCE
locking/rtmutex: Rename argument in the rt_mutex_adjust_prio_chain() documentation as well
locking/rwsem: Fix lock optimistic spinning when owner is not running
locking: Remove ACCESS_ONCE() usage
locking/rwsem: Check for active lock before bailing on spinning
locking/rwsem: Avoid deceiving lock spinners
locking/rwsem: Set lock ownership ASAP
locking/rwsem: Document barrier need when waking tasks
locking/futex: Check PF_KTHREAD rather than !p->mm to filter out kthreads
locking/mutex: Refactor mutex_spin_on_owner()
locking/mutex: In mutex_spin_on_owner(), return true when owner changes
Linus Torvalds [Mon, 13 Apr 2015 17:22:30 +0000 (10:22 -0700)]
Merge branch 'core-efi-for-linus' of git://git./linux/kernel/git/tip/tip
Pull EFI update from Ingo Molnar:
"This tree includes various fixes, cleanups, a new efi=debug boot
option and EFI boot stub memory allocation optimizations"
* 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/libstub: Retrieve FDT size when loaded from UEFI config table
efi: Clean up the efi_call_phys_[prolog|epilog]() save/restore interaction
efi: Disable interrupts around EFI calls, not in the epilog/prolog calls
x86/efi: Add a "debug" option to the efi= cmdline
firmware: dmi_scan: Use direct access to static vars
firmware: dmi_scan: Use full dmi version for SMBIOS3
Linus Torvalds [Mon, 13 Apr 2015 17:11:18 +0000 (10:11 -0700)]
Merge tag 'md/4.0-rc7-fix' of git://neil.brown.name/md
Pull md fixes from Neil Brown:
"Two regression fixes for md, one fairly recent and minor (diskstats
has confusing data) and one older and more serious - RAID0 with
non-power-of-2 chunksize corrupts data.
I guess (almost) no-one uses non-power-of-2 chunks.
Summary:
- Revert recent change which broke IO accounting.
- Fix bug with RAID0 arrays with non-power-of-2 chunk size"
* tag 'md/4.0-rc7-fix' of git://neil.brown.name/md:
md/raid0: fix bug with chunksize not a power of 2.
md: fix md io stats accounting broken
Andrey Ryabinin [Tue, 24 Mar 2015 15:31:22 +0000 (18:31 +0300)]
avr32: fix integer overflow in ELF_ET_DYN_BASE
Almost all arches define ELF_ET_DYN_BASE as 2/3 of TASK_SIZE.
Though it seems that some architectures do this in a wrong way.
The problem is that 2*TASK_SIZE may overflow 32-bits so
the real ELF_ET_DYN_BASE becomes wrong.
Fix this overflow by dividing TASK_SIZE prior to multiplying:
(TASK_SIZE / 3 * 2)
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Linus Torvalds [Mon, 13 Apr 2015 16:47:01 +0000 (09:47 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"First batch of KVM changes for 4.1
The most interesting bit here is irqfd/ioeventfd support for ARM and
ARM64.
Summary:
ARM/ARM64:
fixes for live migration, irqfd and ioeventfd support (enabling
vhost, too), page aging
s390:
interrupt handling rework, allowing to inject all local interrupts
via new ioctl and to get/set the full local irq state for migration
and introspection. New ioctls to access memory by virtual address,
and to get/set the guest storage keys. SIMD support.
MIPS:
FPU and MIPS SIMD Architecture (MSA) support. Includes some
patches from Ralf Baechle's MIPS tree.
x86:
bugfixes (notably for pvclock, the others are small) and cleanups.
Another small latency improvement for the TSC deadline timer"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (146 commits)
KVM: use slowpath for cross page cached accesses
kvm: mmu: lazy collapse small sptes into large sptes
KVM: x86: Clear CR2 on VCPU reset
KVM: x86: DR0-DR3 are not clear on reset
KVM: x86: BSP in MSR_IA32_APICBASE is writable
KVM: x86: simplify kvm_apic_map
KVM: x86: avoid logical_map when it is invalid
KVM: x86: fix mixed APIC mode broadcast
KVM: x86: use MDA for interrupt matching
kvm/ppc/mpic: drop unused IRQ_testbit
KVM: nVMX: remove unnecessary double caching of MAXPHYADDR
KVM: nVMX: checks for address bits beyond MAXPHYADDR on VM-entry
KVM: x86: cache maxphyaddr CPUID leaf in struct kvm_vcpu
KVM: vmx: pass error code with internal error #2
x86: vdso: fix pvclock races with task migration
KVM: remove kvm_read_hva and kvm_read_hva_atomic
KVM: x86: optimize delivery of TSC deadline timer interrupt
KVM: x86: extract blocking logic from __vcpu_run
kvm: x86: fix x86 eflags fixed bit
KVM: s390: migrate vcpu interrupt state
...
Linus Torvalds [Mon, 13 Apr 2015 15:59:21 +0000 (08:59 -0700)]
Merge tag 'linux-kselftest-4.1-rc1' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
"This is a milestone update in a sense. Several new tests and install
and packaging support is added in this update.
This update adds install and packaging tools developed on top of
back-end shared logic enhancemnets to run and install tests. In
addition several timer tests are added.
- New timer tests from John Stultz
- rtc test from Prarit Bhargava
- Enhancements to un and install tests from Michael Ellerman
- Install and packaging tools from Shuah Khan
- Cross-compilation enablement from Tyler Baker
- A couple of bug fixes"
* tag 'linux-kselftest-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (42 commits)
ftracetest: Do not use usleep directly
selftest/mqueue: enable cross compilation
selftest/ipc: enable cross compilation
selftest/memfd: include default header install path
selftest/mount: enable cross compilation
selftest/memfd: enable cross compilation
kselftests: timers: Make set-timer-lat fail more gracefully for !CAP_WAKE_ALARM
selftests: Change memory on-off-test.sh name to be unique
selftests: change cpu on-off-test.sh name to be unique
selftests/mount: Make git ignore all binaries in mount test suite
kselftests: timers: Reduce default runtime on inconsistency-check and set-timer-lat
ftracetest: Convert exit -1 to exit $FAIL
ftracetest: Cope properly with stack tracer not being enabled
tools, update rtctest.c to verify passage of time
Documentation, split up rtc.txt into documentation and test file
selftests: Add tool to generate kselftest tar archive
selftests: Add kselftest install tool
selftests: Set CC using CROSS_COMPILE once in lib.mk
selftests: Add install support for the powerpc tests
selftests/timers: Use shared logic to run and install tests
...
Anand Moon [Sun, 12 Apr 2015 18:44:11 +0000 (04:14 +0930)]
hwmon: (pwm-fan) Update the duty cycle inorder to control the pwm-fan
pwm_config() must be called with a duty cycle of 0 prior to calling
pwm_disable() to ensure that the pwm signal is set to low.
Reported-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Linus Torvalds [Sun, 12 Apr 2015 22:12:50 +0000 (15:12 -0700)]
Linux 4.0
Linus Torvalds [Sun, 12 Apr 2015 17:56:12 +0000 (10:56 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull vfs and fs fixes from Al Viro:
"Several AIO and OCFS2 fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ocfs2: _really_ sync the right range
ocfs2_file_write_iter: keep return value and current position update in sync
[regression] ocfs2: do *not* increment ->ki_pos twice
ioctx_alloc(): fix vma (and file) leak on failure
fix mremap() vs. ioctx_kill() race
Linus Torvalds [Sun, 12 Apr 2015 17:43:30 +0000 (10:43 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/evalenti/linux-soc-thermal
Pull last minute thermal-SoC management fixes from Eduardo Valentin:
"Specifics:
- Minor fixes on ST and RCAR thermal drivers.
- Avoid flooding kernel log when driver returns -EAGAIN.
Note: I am sending this pull on Rui's behalf while he fixes issues in
his Linux box"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
drivers: thermal: st: remove several sparse warnings
thermal: constify of_device_id array
thermal: Do not log an error if thermal_zone_get_temp returns -EAGAIN
thermal: rcar: Fix typo in r8a73a4 SoC name
Linus Torvalds [Sat, 11 Apr 2015 22:57:36 +0000 (15:57 -0700)]
Merge tag 'asoc-fix-v4.0-rc7' of git://git./linux/kernel/git/broonie/sound
Pull last-minute ASoC fix from Mark Brown:
"This patch backs out a change that came in during the merge window
which selects a configuration for GPIO4 on pcm512x CODECs that may not
be suitable for all systems using the device. Changes for v4.1 will
make this properly configurable but for now it's safest to revert to
the v3.19 behaviour and leave the pin configuration alone.
Sorry for sending this direct at the last minute but due to the GPIO
misuse it'd be really good to get it in the release and I'd not
realised it hadn't been sent yet - between some travel, a job change
and other non-urgent fixes coming in I'd lost track of the urgency.
It's been in -next for several weeks now, is isolated to the driver
and fairly clear to inspection"
* tag 'asoc-fix-v4.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound:
ASoC: pcm512x: Remove hardcoding of pll-lock to GPIO4
Mark Brown [Sat, 11 Apr 2015 22:09:31 +0000 (23:09 +0100)]
Merge remote-tracking branches 'spi/topic/spidev' and 'spi/topic/spidev-test' into spi-next
Mark Brown [Sat, 11 Apr 2015 22:09:25 +0000 (23:09 +0100)]
Merge remote-tracking branches 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic/s3c64xx' and 'spi/topic/sc18is602' into spi-next
Mark Brown [Sat, 11 Apr 2015 22:09:18 +0000 (23:09 +0100)]
Merge remote-tracking branches 'spi/topic/omap-100k', 'spi/topic/omap-uwire', 'spi/topic/pl022', 'spi/topic/pm' and 'spi/topic/pxa2xx' into spi-next
Mark Brown [Sat, 11 Apr 2015 22:09:14 +0000 (23:09 +0100)]
Merge remote-tracking branches 'spi/topic/fsl-cspi', 'spi/topic/fsl-dspi', 'spi/topic/imx' and 'spi/topic/of-id' into spi-next
Mark Brown [Sat, 11 Apr 2015 22:09:09 +0000 (23:09 +0100)]
Merge remote-tracking branches 'spi/topic/blackfin', 'spi/topic/cadence', 'spi/topic/dw' and 'spi/topic/err' into spi-next
Mark Brown [Sat, 11 Apr 2015 22:09:03 +0000 (23:09 +0100)]
Merge remote-tracking branches 'spi/topic/atmel', 'spi/topic/bcm2385', 'spi/topic/bcm2835', 'spi/topic/bcm53xx' and 'spi/topic/bitbang' into spi-next
Mark Brown [Sat, 11 Apr 2015 22:09:01 +0000 (23:09 +0100)]
Merge remote-tracking branch 'spi/topic/img-spfi' into spi-next
Mark Brown [Sat, 11 Apr 2015 22:09:00 +0000 (23:09 +0100)]
Merge remote-tracking branch 'spi/topic/core' into spi-next
Mark Brown [Sat, 11 Apr 2015 22:08:56 +0000 (23:08 +0100)]
Merge remote-tracking branches 'spi/fix/fsl-dspi', 'spi/fix/imx' and 'spi/fix/rockchip' into spi-linus
Mark Brown [Sat, 11 Apr 2015 22:08:54 +0000 (23:08 +0100)]
Merge remote-tracking branch 'spi/fix/img-spfi' into spi-linus
Howard Mitchell [Mon, 23 Mar 2015 21:17:01 +0000 (21:17 +0000)]
ASoC: pcm512x: Remove hardcoding of pll-lock to GPIO4
Currently GPIO4 is hardcoded to output the pll-lock signal.
Unfortunately this is after the pll-out GPIO is configured which
is selectable in the device tree. Therefore it is not possible to
use GPIO4 for pll-out. Therefore this patch removes the
configuration of GPIO4.
Signed-off-by: Howard Mitchell <hm@hmbedded.co.uk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Linus Torvalds [Sat, 11 Apr 2015 20:46:07 +0000 (13:46 -0700)]
Revert "dmaengine: Add a warning for drivers not using the generic slave caps retrieval"
This reverts commit
ecc19d17868be9c9f8f00ed928791533c420f3e0.
It added a new warning to try to encourage driver writers to set the
device capabities properly, but drivers haven't been updated and in the
meantime it just generaters a scary message that users cannot actually
do anything about.
Warnings like these are appropriate if you actually expect to fix the
code that causes them. They are not appropriate for releases.
Requested-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 9 Apr 2015 21:12:22 +0000 (14:12 -0700)]
blk-mq: initialize 'struct request' and associated data to zero
Jan Engelhardt reports a strange oops with an invalid ->sense_buffer
pointer in scsi_init_cmd_errh() with the blk-mq code.
The sense_buffer pointer should have been initialized by the call to
scsi_init_request() from blk_mq_init_rq_map(), but there seems to be
some non-repeatable memory corruptor.
This patch makes sure we initialize the whole struct request allocation
(and the associated 'struct scsi_cmnd' for the SCSI case) to zero, by
using __GFP_ZERO in the allocation. The old code initialized a couple
of individual fields, leaving the rest undefined (although many of them
are then initialized in later phases, like blk_mq_rq_ctx_init() etc.
It's not entirely clear why this matters, but it's the rigth thing to do
regardless, and with 4.0 imminent this is the defensive "let's just make
sure everything is initialized properly" patch.
Tested-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 11 Apr 2015 17:52:13 +0000 (10:52 -0700)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fix from Vinod Koul:
"I have one more fix to fix the boot warning on cppi driver due to
missing capabilities"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: cppi41: add missing bitfields
Linus Torvalds [Sat, 11 Apr 2015 17:47:17 +0000 (10:47 -0700)]
Merge tag 'for-linus-4.0-1' of git://git.code.sf.net/p/openipmi/linux-ipmi
Pull late ipmi fixes from Corey Minyard:
"Some annoying issues in the IPMI driver that would be good to have
fixed before 4.0 is released.
These got reported or discovered late, but they will avoid some
situations that would cause lots of log spam and in one case a
deadlock"
* tag 'for-linus-4.0-1' of git://git.code.sf.net/p/openipmi/linux-ipmi:
ipmi_ssif: Use interruptible completion for waiting in the thread
ipmi/powernv: Fix minor locking bug
ipmi: Handle BMCs that don't allow clearing the rcv irq bit
Felipe Balbi [Wed, 8 Apr 2015 16:45:42 +0000 (11:45 -0500)]
dmaengine: cppi41: add missing bitfields
Add missing directions, residue_granularity,
srd_addr_widths and dst_addr_widths bitfields.
Without those we will see a kernel WARN()
when loading musb on am335x devices.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Denys Vlasenko [Fri, 10 Apr 2015 13:06:59 +0000 (15:06 +0200)]
perf/x86/64: Report regs_user->ax too in get_regs_user()
I don't see why we report e.g. orix_ax, which is not always
meaningful, but don't report ax, which is meaningful.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1428671219-29341-4-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Denys Vlasenko [Fri, 10 Apr 2015 13:06:58 +0000 (15:06 +0200)]
perf/x86/64: Simplify regs_user->abi setting code in get_regs_user()
user_64bit_mode(regs) basically checks regs->cs to point to a
64-bit segment. This check used to be unreliable here because
regs->cs was not always correct in syscalls.
Now regs->cs is always correct: in syscalls, in interrupts, in
exceptions. No need to emply heuristics here.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1428671219-29341-3-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Denys Vlasenko [Fri, 10 Apr 2015 13:06:57 +0000 (15:06 +0200)]
perf/x86/64: Do report user_regs->cx while we are in syscall, in get_regs_user()
Yes, it is true that cx contains return address.
It's not clear why we trash it.
Stop doing that.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1428671219-29341-2-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Denys Vlasenko [Fri, 10 Apr 2015 13:06:56 +0000 (15:06 +0200)]
perf/x86/64: Do not guess user_regs->cs, ss, sp in get_regs_user()
After recent changes to syscall entry points,
user_regs->{cs,ss,sp} are always correct. (They used to be
undefined while in syscalls).
We can report them reliably, without guessing.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1428671219-29341-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Thomas Gleixner [Sat, 11 Apr 2015 09:17:28 +0000 (11:17 +0200)]
Merge tag 'irqchip-core-4.1-3' of git://git.infradead.org/users/jcooper/linux into irq/core
irqchip core change for v4.1 (round 3) from Jason Cooper
Purge the gic_arch_extn hacks and abuse by using the new stacked domains
NOTE: Due to the nature of these changes, patches crossing subsystems have
been kept together in their own branches.
- tegra
- Handle the LIC properly
- omap
- Convert crossbar to stacked domains
- kill arm,routable-irqs in GIC binding
- exynos
- Convert PMU wakeup to stacked domains
- shmobile, ux500, zynq (irq_set_wake branch)
- Switch from abusing gic_arch_extn to using gic_set_irqchip_flags
Thomas Gleixner [Sat, 11 Apr 2015 09:15:38 +0000 (11:15 +0200)]
Merge tag 'irqchip-core-4.1-2' of git://git.infradead.org/users/jcooper/linux into irq/core
irqchip core changes for v4.1 (round 2) from Jason Cooper
- gic
- Tolerate uni-processor systems better in gic_get_cpumask()
- mvebu
- Handle per-cpu interrupts properly
- Enable PMU interrupts
- Enable wakeup source
- vybrid
- Add MSCM interrupt router
- renesas
- Add PM and wakeup support
Denys Vlasenko [Fri, 10 Apr 2015 18:13:40 +0000 (20:13 +0200)]
x86/asm/entry/32: Tidy up JNZ instructions after TESTs
After TESTs, use logically correct JNZ mnemonic instead of JNE.
This doesn't change code:
md5:
c3005b39a11fe582b7df7908561ad4ee entry_32.o.before.asm
c3005b39a11fe582b7df7908561ad4ee entry_32.o.after.asm
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428689620-21881-1-git-send-email-dvlasenk@redhat.com
[ Added object file comparison. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Corey Minyard [Sat, 4 Apr 2015 06:54:26 +0000 (01:54 -0500)]
ipmi_ssif: Use interruptible completion for waiting in the thread
The code was using an normal completion, but that caused stuck
task errors after a while. Use an interruptible one to avoid that.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Alistair Popple [Fri, 10 Apr 2015 07:32:20 +0000 (17:32 +1000)]
ipmi/powernv: Fix minor locking bug
If ipmi_powernv_recv(...) is called without a current message it
prints a warning and returns. However it fails to release the message
lock causing the system to dead lock during any subsequent IPMI
operations.
This error path should never normally be taken unless there are bugs
elsewhere in the system.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Corey Minyard [Fri, 3 Apr 2015 17:13:48 +0000 (12:13 -0500)]
ipmi: Handle BMCs that don't allow clearing the rcv irq bit
Some BMCs don't let you clear the receive irq bit in the global
enables. This is kind of silly, but they give an error if you
try to clear it. Compensate for this by detecting the situation
and working around it.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Tested-by: Thomas D <whissi@whissi.de>
Reviewed-by: Thomas D <whissi@whissi.de>
Linus Torvalds [Sat, 11 Apr 2015 00:41:47 +0000 (17:41 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is our remaining set of three fixes for 4.0: two oops fixes(one
for cable pulls triggering oopses and the other be2iscsi specific) and
one warn on in sysfs on multipath devices using enclosures"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
Defer processing of REQ_PREEMPT requests for blocked devices
be2iscsi: Fix kernel panic when device initialization fails
enclosure: fix WARN_ON removing an adapter in multi-path devices
Linus Torvalds [Fri, 10 Apr 2015 23:56:40 +0000 (16:56 -0700)]
Merge git://git./linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
"Just a few small fixes:
Two from Andy, the first addresses a v4.0 target specific regression
to a user visible configfs attribute, and the second adds a set of
missing brackets around IPv6 discovery portal information within
iscsi-target.
And one from Mike that fixes an OOPs regression in traditional
iscsi-target when an iovec allocation fails, that has been present
since v3.10.y code. (CC'd to stable)"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
iscsi target: fix oops when adding reject pdu
iscsi-target: TargetAddress in SendTargets should bracket ipv6 addresses
target: Allow userspace to write 1 to attrib/emulate_fua_write
Jason Cooper [Fri, 10 Apr 2015 22:58:19 +0000 (22:58 +0000)]
Merge branch 'irqchip/stacked-irq_set_wake' into irqchip/core
Conflicts:
drivers/irqchip/irq-gic.c
Jason Cooper [Fri, 10 Apr 2015 22:57:58 +0000 (22:57 +0000)]
Merge branch 'irqchip/stacked-exynos' into irqchip/core
Jason Cooper [Fri, 10 Apr 2015 22:57:56 +0000 (22:57 +0000)]
Merge branch 'irqchip/stacked-omap' into irqchip/core
Jason Cooper [Fri, 10 Apr 2015 22:57:53 +0000 (22:57 +0000)]
Merge branch 'irqchip/stacked-tegra' into irqchip/core
Mike Christie [Fri, 10 Apr 2015 07:47:27 +0000 (02:47 -0500)]
iscsi target: fix oops when adding reject pdu
This fixes a oops due to a double list add when adding a reject PDU for
iscsit_allocate_iovecs allocation failures. The cmd has already been
added to the conn_cmd_list in iscsit_setup_scsi_cmd, so this has us call
iscsit_reject_cmd.
Note that for ERL0 the reject PDU is not actually sent, so this patch
is not completely tested. Just verified we do not oops. The problem is the
add reject functions return -1 which is returned all the way up to
iscsi_target_rx_thread which for ERL0 will drop the connection.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Martin Sperl [Mon, 6 Apr 2015 17:16:30 +0000 (17:16 +0000)]
spi: bcm2835: enabling polling mode for transfers shorter than 30us
In cases of short transfer times the CPU is spending lots of time
in the interrupt handler and scheduler to reschedule the worker thread.
Measurements show that we have times where it takes 29.32us to between
the last clock change and the time that the worker-thread is running again
returning from wait_for_completion_timeout().
During this time the interrupt-handler is running calling complete()
and then also the scheduler is rescheduling the worker thread.
This time can vary depending on how much of the code is still in
CPU-caches, when there is a burst of spi transfers the subsequent delays
are in the order of 25us, so the value of 30us seems reasonable.
With polling the whole transfer of 4 bytes at 10MHz finishes after 6.16us
(CS down to up) with the real transfer (clock running) taking 3.56us.
So the efficiency has much improved and is also freeing CPU cycles,
reducing interrupts and context switches.
Because of the above 30us seems to be a reasonable limit for polling.
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Martin Sperl [Mon, 6 Apr 2015 17:16:31 +0000 (17:16 +0000)]
spi: bcm2835: transform native-cs to gpio-cs on first spi_setup
Transforms the bcm-2835 native SPI-chip select to their gpio-cs equivalent.
This allows for some support of some optimizations that are not
possible due to HW-gliches on the CS line - especially filling
the FIFO before enabling SPI interrupts (by writing to CS register)
while the transfer is already in progress (See commit:
e3a2be3030e2)
This patch also works arround some issues in bcm2835-pinctrl which does not
set the value when setting the GPIO as output - it just sets up output and
(typically) leaves the GPIO as low. When a fix for this is merged then this
gpio_set_value can get removed from bcm2835_spi_setup.
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Linus Torvalds [Fri, 10 Apr 2015 18:16:54 +0000 (11:16 -0700)]
Merge tag 'sound-4.0' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are fixes gathered for 4.0-final; one FireFire endian fix, two
USB-audio quirks, and three HD-audio quirks.
All relatively small and device-specific fixes, should be pretty safe
to apply"
* tag 'sound-4.0' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob support
ALSA: hda - Fix headphone pin config for Lifebook T731
ALSA: bebob: fix to processing in big-endian machine for sending cue
ALSA: hda/realtek - Make more stable to get pin sense for ALC283
ALSA: usb-audio: don't try to get Benchmark DAC1 sample rate
ALSA: hda/realtek - Support Dell headset mode for ALC256
Mark Brown [Fri, 10 Apr 2015 18:16:06 +0000 (19:16 +0100)]
Merge remote-tracking branch 'regulator/topic/wm8350' into regulator-next
Mark Brown [Fri, 10 Apr 2015 18:16:03 +0000 (19:16 +0100)]
Merge remote-tracking branches 'regulator/topic/mode', 'regulator/topic/notifier', 'regulator/topic/palmas', 'regulator/topic/qcom' and 'regulator/topic/stw481x' into regulator-next
Mark Brown [Fri, 10 Apr 2015 18:16:02 +0000 (19:16 +0100)]
Merge remote-tracking branches 'regulator/topic/dbx500', 'regulator/topic/load-op', 'regulator/topic/max77693' and 'regulator/topic/max8660' into regulator-next
Mark Brown [Fri, 10 Apr 2015 18:16:00 +0000 (19:16 +0100)]
Merge remote-tracking branches 'regulator/topic/act8865', 'regulator/topic/arizona-ldo1', 'regulator/topic/arizona-micsupp' and 'regulator/topic/da9211' into regulator-next
Mark Brown [Fri, 10 Apr 2015 18:15:59 +0000 (19:15 +0100)]
Merge remote-tracking branch 'regulator/topic/core' into regulator-next
Mark Brown [Fri, 10 Apr 2015 18:05:21 +0000 (19:05 +0100)]
Merge branch 'topic/debugfs' of git://git./linux/kernel/git/broonie/regulator into regulator-core
Linus Torvalds [Fri, 10 Apr 2015 17:51:34 +0000 (10:51 -0700)]
Merge tag 'nios2-fixes-v4.0-final' of git://git.rocketboards.org/linux-socfpga-next
Pull arch/nios2 fixes from Ley Foon Tan:
"There are 3 arch/nios2 fixes for 4.0 final:
- fix cache coherency issue when debugging with gdb
- move restart_block to struct task_struct (aligned with other
architectures)
- fix for missing registers defines for ptrace"
* tag 'nios2-fixes-v4.0-final' of git://git.rocketboards.org/linux-socfpga-next:
nios2: fix cache coherency issue when debug with gdb
nios2: add missing ptrace registers defines
nios2: signal: Move restart_block to struct task_struct
Markus Pargmann [Fri, 10 Apr 2015 13:23:42 +0000 (15:23 +0200)]
regulator: max8660: Handle empty regulator data
It is not necessary to have regulator init data for a regulator. This
patch removes the necessity of this data and handles a NULL pointer
properly.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Heiko Stübner [Fri, 10 Apr 2015 11:48:41 +0000 (13:48 +0200)]
regulator: output current-limit for all regulators in summary
Voltage regulators can have (unregulated) current limits too, so we should
probably output both voltage and current for all regulators.
Holding the rdev->mutex actually conflicts with _regulator_get_current_limit
but also is not really necessary, as the global regulator_list_mutex already
protects us from the regulator vanishing while we go through the list.
On the rk3288-firefly the summary now looks like:
regulator use open bypass voltage current min max
-------------------------------------------------------------------------------
vcc_sys 0 12 0 5000mV 0mA 5000mV 5000mV
vcc_lan 1 1 0 3300mV 0mA 3300mV 3300mV
ff290000.ethernet 0mV 0mV
vcca_33 0 0 0 3300mV 0mA 3300mV 3300mV
vcca_18 0 0 0 1800mV 0mA 1800mV 1800mV
vdd10_lcd 0 0 0 1000mV 0mA 1000mV 1000mV
[...]
Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Heiko Stübner [Tue, 7 Apr 2015 14:16:39 +0000 (16:16 +0200)]
regulator: add a summary tree in debugfs
On modern systems the regulator hierarchy can get quite long and nested
with regulators supplying other regulators. In some cases when debugging
it might be nice to get a tree of these regulators, their consumers
and the regulation constraints in one go.
To achieve this add a regulator_summary sysfs node, similar to
clk_summary in the common clock framework, that walks the regulator
list and creates a tree out of the regulators, their consumers and
core per-regulator settings.
On a rk3288-firefly the regulator_summary would for example look
something like:
regulator use open bypass value min max
-----------------------------------------------------------------------
vcc_sys 0 12 0 5000mV 5000mV 5000mV
vcc_lan 1 1 0 3300mV 3300mV 3300mV
ff290000.ethernet 0mV 0mV
vcca_33 0 0 0 3300mV 3300mV 3300mV
vcca_18 0 0 0 1800mV 1800mV 1800mV
vdd10_lcd 0 0 0 1000mV 1000mV 1000mV
vccio_sd 0 0 0 3300mV 3300mV 3300mV
vcc_20 0 3 0 2000mV 2000mV 2000mV
vcc18_lcd 0 0 0 1800mV 1800mV 1800mV
vcc_18 0 2 0 1800mV 1800mV 1800mV
ff100000.saradc 0mV 0mV
ff0d0000.dwmmc 1650mV 1950mV
vdd_10 0 0 0 1000mV 1000mV 1000mV
vdd_log 0 0 0 1100mV 1100mV 1100mV
vcc_io 0 3 0 3300mV 3300mV 3300mV
ff0f0000.dwmmc 3300mV 3400mV
vcc_flash 1 1 0 1800mV 1800mV 1800mV
ff0f0000.dwmmc 1700mV 1950mV
vcc_sd 1 1 0 3300mV 3300mV 3300mV
ff0c0000.dwmmc 3300mV 3400mV
vcc_ddr 0 0 0 1200mV 1200mV 1200mV
vdd_gpu 0 0 0 1000mV 850mV 1350mV
vdd_cpu 0 1 0 900mV 850mV 1350mV
cpu0 900mV 900mV
vcc_5v 0 2 0 5000mV 5000mV 5000mV
vcc_otg_5v 0 0 0 5000mV 5000mV 5000mV
vcc_host_5v 0 0 0 5000mV 5000mV 5000mV
regulator-dummy 0 0 0 0mV 0mV 0mV
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Radim Krčmář [Wed, 8 Apr 2015 12:16:48 +0000 (14:16 +0200)]
KVM: use slowpath for cross page cached accesses
kvm_write_guest_cached() does not mark all written pages as dirty and
code comments in kvm_gfn_to_hva_cache_init() talk about NULL memslot
with cross page accesses. Fix all the easy way.
The check is '<= 1' to have the same result for 'len = 0' cache anywhere
in the page. (nr_pages_needed is 0 on page boundary.)
Fixes: 8f964525a121 ("KVM: Allow cross page reads and writes from cached translations.")
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Message-Id: <
20150408121648.GA3519@potion.brq.redhat.com>
Reviewed-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Bjorn Helgaas [Fri, 10 Apr 2015 13:27:18 +0000 (08:27 -0500)]
Merge branch 'pci/misc' into next
* pci/misc:
PCI: Read capability list as dwords, not bytes
PCI: Don't clear ASPM bits when the FADT declares it's unsupported
PCI: Clarify policy for vendor IDs in pci.txt
PCI/ACPI: Optimize device state transition delays
PCI: Export pci_find_host_bridge() for use inside PCI core
PCI: Make a shareable UUID for PCI firmware ACPI _DSM
PCI: Fix typo in Thunderbolt kernel message
Bjorn Helgaas [Fri, 10 Apr 2015 13:26:54 +0000 (08:26 -0500)]
Merge branches 'pci/host-exynos', 'pci/host-iproc', 'pci/host-keystone', 'pci/host-layerscape', 'pci/host-mvebu', 'pci/host-rcar' and 'pci/host-versatile' into next
* pci/host-exynos:
PCI: exynos: Fix INTx enablement statement termination error
* pci/host-iproc:
PCI: iproc: Add Broadcom iProc PCIe support
PCI: iproc: Add DT docs for Broadcom iProc PCIe driver
PCI: Export symbols required for loadable host driver modules
* pci/host-keystone:
PCI: keystone: Don't dereference possible NULL pointer
* pci/host-layerscape:
PCI: layerscape: Simplify platform_get_resource_byname() failure checking
* pci/host-mvebu:
PCI: mvebu: Add suspend/resume support
* pci/host-rcar:
PCI: rcar: Verify that mem_res is 64K-aligned
PCI: rcar: Change PCIEPARL and PCIEPARH to PCIEPALR and PCIEPAUR
PCI: rcar: Write zeroes to reserved PCIEPARL bits
PCI: rcar: Fix position of MSI enable bit
* pci/host-versatile:
PCI: versatile: Check for devm_ioremap_resource() failures
Chase Metzger [Fri, 10 Apr 2015 04:41:52 +0000 (21:41 -0700)]
drivers/usb/core: devio.c: Removed an uneeded space before tab
Ran checkpatch.pl on file and removed a warning about an unwanted space before
a tab.
Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
projects / openwrt / staging / blogic.git / log