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* dt-bindings: auxdisplay: Add bindings for Hitachi HD44780Geert Uytterhoeven2017-03-171-0/+44
| | | | | | | | | | Add DT bindings for an Hitachi HD44780 Character LCD Controller where its M6800 bus interface is connected to GPIOs. Memory-mapped configurations are not yet supported. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* auxdisplay: charlcd: Add support for displays with more than two linesGeert Uytterhoeven2017-03-171-9/+13
| | | | | | | | | | | | On displays with more than two lines, the additional lines are stored in the buffers used for the first two lines, but beyond the visible parts. Adjust the DDRAM address calculation to cater for this. When clearing the display, avoid writing more spaces than the actual size of the physical buffer. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* auxdisplay: charlcd: Add support for 4-bit interfacesGeert Uytterhoeven2017-03-172-6/+32
| | | | | | | | | | | | | In 4-bit mode, 8-bit commands and data are written using two raw writes to the data interface: high nibble first, low nibble last. This must be handled by the low-level driver. However, as we don't know in which mode (4-bit or 8-bit) nor 4-bit phase the LCD was left, initialization must always be handled using raw writes, and needs to configure the LCD for 8-bit mode first. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* auxdisplay: charlcd: Extract character LCD core from misc/panelGeert Uytterhoeven2017-03-176-735/+927
| | | | | | | | | | | | | | | | | | | | | | Extract the character LCD core from the Parallel port LCD/Keypad Panel driver in the misc subsystem, and convert it into a subdriver in the auxdisplay subsystem. This allows the character LCD core to be used by other drivers later. Compilation is controlled by its own Kconfig symbol CHARLCD, which is to be selected by its users, but can be enabled manually for compile-testing. All functions changed their prefix from "lcd_" to "charlcd_", and gained a "struct charlcd *" parameter to operate on a specific instance. While the driver API thus is ready to support multiple instances, the current limitation of a single display (/dev/lcd has a single misc minor assigned) is retained. No functional changes intended. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers/char: Convert remaining use of pr_warning to pr_warnJoe Perches2017-03-171-1/+1
| | | | | | | | | | | | | To enable eventual removal of pr_warning This makes pr_warn use consistent for drivers/char Prior to this patch, there were 1 use of pr_warning and 40 uses of pr_warn in drivers/char Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Amit Shah <amit@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: w1_ds2760.h: fix defines indentationMariusz Bialonczyk2017-03-171-4/+6
| | | | | Signed-off-by: Mariusz Bialonczyk <manio@skyboo.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: add documentation for w1_ds2438Mariusz Bialonczyk2017-03-172-0/+65
| | | | | Signed-off-by: Mariusz Bialonczyk <manio@skyboo.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: add support for DS2438 Smart Battery MonitorMariusz Bialonczyk2017-03-174-0/+398
| | | | | | | | | Detailed information about support and provided sysfs files in my next commit which creates a documentation file: Documentation/w1/slaves/w1_ds2438 Signed-off-by: Mariusz Bialonczyk <manio@skyboo.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* w1: add missing DS2413 documentationMariusz Bialonczyk2017-03-172-0/+52
| | | | | Signed-off-by: Mariusz Bialonczyk <manio@skyboo.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pps: fix padding issue with PPS_FETCH for ioctl_compatMatt Ranostay2017-03-172-31/+98
| | | | | | | | | | Issue is that x86 32-bit aligns to 4-bytes instead of 8-bytes so this patchset works around the issue and corrects the data returned in pps_fdata_compat. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* pps: add ioctl_compat function to correct ioctl definitionsMatt Ranostay2017-03-171-0/+13
| | | | | | | | | | | ioctl definitions use the pointer size of the architecture which is fine when userspace and kernel are the same bitsize. This patchset workarounds an issue with mixed bitsize kernel + userspace by rewriting the cmd to the kernelspace architecture pointer size. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* docs: Update VME documentation to include kerneldoc commentsMartyn Welch2017-03-171-270/+93
| | | | | | | | Update VME documentation given that kerneldoc comments are now provided. Add "VME API" section to VME RST to pull in kerneldoc comments. Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* docs: Add kernel-doc comments to VME driver APIMartyn Welch2017-03-172-32/+449
| | | | | | | | | Add kernel-doc comments to the VME driver API and structures. This documentation will be integrated into the RST documentation in a later patch. Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* hpet: Make cmd parameter of hpet_ioctl_common() unsignedMatthias Kaehlcke2017-03-171-1/+1
| | | | | | | | | | | | | | | | | | | | | The value passed by the two callers of the function is unsigned anyway. Making the parameter unsigned fixes the following warning when building with clang: drivers/char/hpet.c:588:7: error: overflow converting case value to switch condition type (2149083139 to 18446744071563667459) [-Werror,-Wswitch] case HPET_INFO: ^ include/uapi/linux/hpet.h:18:19: note: expanded from macro 'HPET_INFO' ^ include/uapi/asm-generic/ioctl.h:77:28: note: expanded from macro '_IOR' ^ include/uapi/asm-generic/ioctl.h:66:2: note: expanded from macro '_IOC' (((dir) << _IOC_DIRSHIFT) | \ Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers/misc: Add Aspeed LPC control driverCyril Bur2017-03-174-0/+336
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to manage server systems, there is typically another processor known as a BMC (Baseboard Management Controller) which is responsible for powering the server and other various elements, sometimes fans, often the system flash. The Aspeed BMC family which is what is used on OpenPOWER machines and a number of x86 as well is typically connected to the host via an LPC (Low Pin Count) bus (among others). The LPC bus is an ISA bus on steroids. It's generally used by the BMC chip to provide the host with access to the system flash (via MEM/FW cycles) that contains the BIOS or other host firmware along with a number of SuperIO-style IOs (via IO space) such as UARTs, IPMI controllers. On the BMC chip side, this is all configured via a bunch of registers whose content is related to a given policy of what devices are exposed at a per system level, which is system/vendor specific, so we don't want to bolt that into the BMC kernel. This started with a need to provide something nicer than /dev/mem for user space to configure these things. One important aspect of the configuration is how the MEM/FW space is exposed to the host (ie, the x86 or POWER). Some registers in that bridge can define a window remapping all or portion of the LPC MEM/FW space to a portion of the BMC internal bus, with no specific limits imposed in HW. I think it makes sense to ensure that this window is configured by a kernel driver that can apply some serious sanity checks on what it is configured to map. In practice, user space wants to control this by flipping the mapping between essentially two types of portions of the BMC address space: - The flash space. This is a region of the BMC MMIO space that more/less directly maps the system flash (at least for reads, writes are somewhat more complicated). - One (or more) reserved area(s) of the BMC physical memory. The latter is needed for a number of things, such as avoiding letting the host manipulate the innards of the BMC flash controller via some evil backdoor, we want to do flash updates by routing the window to a portion of memory (under control of a mailbox protocol via some separate set of registers) which the host can use to write new data in bulk and then request the BMC to flash it. There are other uses, such as allowing the host to boot from an in-memory flash image rather than the one in flash (very handy for continuous integration and test, the BMC can just download new images). It is important to note that due to the way the Aspeed chip lets the kernel configure the mapping between host LPC addresses and BMC ram addresses the offset within the window must be a multiple of size. Not doing so will fragment the accessible space rather than simply moving 'zero' upwards. This is caused by the nature of HICR8 being a mask and the way host LPC addresses are translated. Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* zorro: stop creating attributes by handDmitry Torokhov2017-03-174-47/+50
| | | | | | | | | | | Instead of creating attributes one by one, define attribute_group array and attach it to bus->dev_groups, so that all needed attributes are created automatically when a new device is registered on the bus. Also switch to using standard DEVICE_ATTR_RO() macros. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* MAINTAINERS: update firmware loader entryMing Lei2017-03-171-1/+0
| | | | | | | | This email of 'ming.lei@canonical.com' isn't valid any more, please remove the entry. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* rapidio: use is_visible() to hide switch-specific attributesDmitry Torokhov2017-03-174-51/+33
| | | | | | | | | | | | | | Instead of creating switch-specific attributes by hand, implement is_visible() method of attribute group and hide them when dealing with non-switch devices. This will ensure that all attributes are created together, before userspace gets notified of new device. Also, remove rio-sysfs.c from list of files that are scanned when compiling RapiodIO documentations as it no longer has any structured comments, and leaving it in leads to warning when building docs. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* binder: Add 'hwbinder' to the default devicesRob Herring2017-03-171-1/+1
| | | | | | | | | | | | | | | | | | As AOSP master is now starting to require a hwbinder device, add it to the the default Kconfig. Having the hwbinder device when not needed shouldn't hurt anything either. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Drivers: hv: Base autoeoi enablement based on hypervisor hintsK. Y. Srinivasan2017-03-172-1/+9
| | | | | | | | Don't enable auto-eoi if the hypervisor recommends otherwise. This will enable vAPIC functionality if available. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Drivers: hv: Fix a typoK. Y. Srinivasan2017-03-171-1/+1
| | | | | | | Fix a typo in the macro. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* vmbus: expose debug info for driversStephen Hemminger2017-03-173-11/+18
| | | | | | | | Allow driver to get debug information about state of the ring. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* vmbus: cleanup header file styleStephen Hemminger2017-03-172-14/+14
| | | | | | | | | Minor changes to align hyper-v vmbus include files with current linux kernel style. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* vmbus: make channel_message table constantStephen Hemminger2017-03-173-26/+26
| | | | | | | | | This table is immutable and should be const. Cleanup indentation and whitespace for this as well. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* hyperv: remove unnecessary return variableStephen Hemminger2017-03-171-4/+2
| | | | | | | | hv_ringbuffer_read cleanup. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* vmbus: fix spelling errorsStephen Hemminger2017-03-172-10/+10
| | | | | | | | Several spelling errors in comments Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* vmbus: remove unnecessary initializationStephen Hemminger2017-03-171-8/+5
| | | | | | | | Don't initialize variables that are then set a few lines later. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* vmbus: remove useless return'sStephen Hemminger2017-03-177-14/+0
| | | | | | | | No need for empty return at end of void function Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* hyperv: fix warning about missing prototypeStephen Hemminger2017-03-171-1/+1
| | | | | | | | | Compiling with warnings enabled finds missing prototype for hv_do_hypercall. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* vmbus: only reschedule tasklet if time limit exceededStephen Hemminger2017-03-171-31/+34
| | | | | | | | | | | | | | | The change to reschedule tasklet if more data arrives in ring buffer can cause performance regression if host timing is such that the next response happens in small window. Go back to a modified version of the original looping behavior. If the race occurs in a small time, then loop. But if the tasklet has been running for a long interval due to flood, then reschedule the tasklet to allow migration to ksoftirqd. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: bridge: Replace open-coded list_for_each + list_entryMoritz Fischer2017-03-171-11/+4
| | | | | | | | | | | Replaces open-coded list_for_each() + list_entry() with macro list_for_each_entry() Signed-off-by: Moritz Fischer <mdf@kernel.org> Cc: linux-fpga@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: Add support for Lattice iCE40 FPGAsJoel Holdsworth2017-03-173-0/+214
| | | | | | | | | | | | This patch adds support to the FPGA manager for configuring the SRAM of iCE40LM, iCE40LP, iCE40HX, iCE40 Ultra, iCE40 UltraLite and iCE40 UltraPlus devices, through slave SPI. Signed-off-by: Joel Holdsworth <joel@airwebreathe.org.uk> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com> Acked-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Documentation: Add binding document for Lattice iCE40 FPGA managerJoel Holdsworth2017-03-171-0/+21
| | | | | | | | | | | | This adds documentation of the device tree bindings of the Lattice iCE40 FPGA driver for the FPGA manager framework. Signed-off-by: Joel Holdsworth <joel@airwebreathe.org.uk> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Alan Tull <atull@opensource.altera.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ARM: ep93xx: Register ts73xx-fpga manager driver for TS-7300Florian Fainelli2017-03-171-0/+26
| | | | | | | | | | | Register the TS-7300 FPGA manager device drivers which allows us to load bitstreams into the on-board Altera Cyclone II FPGA. Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Alan Tull <atull@opensource.altera.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* FPGA: Add TS-7300 FPGA managerFlorian Fainelli2017-03-173-0/+164
| | | | | | | | | | | | | | | | | Add support for loading bitstreams on the Altera Cyclone II FPGA populated on the TS-7300 board. This is done through the configuration and data registers offered through a memory interface between the EP93xx SoC and the FPGA via an intermediate CPLD device. The EP93xx SoC on the TS-7300 does not have direct means of configuring the on-board FPGA other than by using the special memory mapped interface to the CPLD. No other entity on the system can control the FPGA bitstream. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Alan Tull <atull@opensource.altera.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: region: Add fpga-region property 'encrypted-fpga-config'Moritz Fischer2017-03-172-2/+7
| | | | | | | | | | Add fpga-region property to allow passing the fact that the bitstream is encrypted to the fpga-region and ultimately to the low-level driver. Signed-off-by: Moritz Fischer <mdf@kernel.org> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: zynq: Add support for encrypted bitstreamsMoritz Fischer2017-03-171-3/+25
| | | | | | | | | | | | | Add support for encrypted bitstreams. For this to work the system must be booted in secure mode. In order for on-the-fly decryption to work, the PCAP clock rate needs to be lowered via the PCAP_RATE_EN bit. Signed-off-by: Moritz Fischer <mdf@kernel.org> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: Add flag to indicate bitstream needs decryptingMoritz Fischer2017-03-171-0/+1
| | | | | | | | | | | | | Add a flag that is passed to the write_init() callback, indicating that the bitstream is encrypted. The low-level driver will deal with the flag, or return an error, if encrypted bitstreams are not supported. Signed-off-by: Moritz Fischer <mdf@kernel.org> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* fpga: fix sparse warnings in fpga-mgr and fpga-bridgeDinh Nguyen2017-03-172-2/+2
| | | | | | | | | | | | Fix up these sparse warnings: drivers/fpga/fpga-mgr.c:189:21: warning: symbol '__fpga_mgr_get' was not declared. Should it be static? drivers/fpga/fpga-bridge.c:30:12: warning: symbol 'bridge_list_lock' was not declared. Should it be static? Signed-off-by: Dinh Nguyen <dinguyen@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Linux 4.11-rc2v4.11-rc2Linus Torvalds2017-03-121-1/+1
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* Merge branch 'for-linus' of ↵Linus Torvalds2017-03-1211-29/+51
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: - four patches to get the new cputime code in shape for s390 - add the new statx system call - a few bug fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: wire up statx system call KVM: s390: Fix guest migration for huge guests resulting in panic s390/ipl: always use load normal for CCW-type re-IPL s390/timex: micro optimization for tod_to_ns s390/cputime: provide archicture specific cputime_to_nsecs s390/cputime: reset all accounting fields on fork s390/cputime: remove last traces of cputime_t s390: fix in-kernel program checks s390/crypt: fix missing unlock in ctr_paes_crypt on error path
| * s390: wire up statx system callHeiko Carstens2017-03-093-1/+6
| | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * KVM: s390: Fix guest migration for huge guests resulting in panicJanosch Frank2017-03-021-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While we can technically not run huge page guests right now, we can setup a guest with huge pages. Trying to migrate it will trigger a VM_BUG_ON and, if the kernel is not configured to panic on a BUG, it will happily try to work on non-existing page table entries. With this patch, we always return "dirty" if we encounter a large page when migrating. This at least fixes the immediate problem until we have proper handling for both kind of pages. Fixes: 15f36eb ("KVM: s390: Add proper dirty bitmap support to S390 kvm.") Cc: <stable@vger.kernel.org> # 3.16+ Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/ipl: always use load normal for CCW-type re-IPLHeiko Carstens2017-03-021-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | commit 14890678687c ("s390/ipl: use load normal for LPAR re-ipl") missed to convert one code path to use load normal semantics for re-IPL. Convert the missing code path as well. Fixes: 14890678687c ("s390/ipl: use load normal for LPAR re-ipl") Reported-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Acked-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/timex: micro optimization for tod_to_nsMartin Schwidefsky2017-03-011-8/+4
| | | | | | | | | | | | | | | | The conversion of a TOD value to nano-seconds currently uses a 32/32 bit split with the calculation for "nsecs = (TOD * 125) >> 9". Using a 55/9 bit split saves an instruction. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cputime: provide archicture specific cputime_to_nsecsMartin Schwidefsky2017-03-011-1/+7
| | | | | | | | | | | | | | | | | | The generic cputime_to_nsecs function first converts the cputime to micro-seconds and then multiplies the result with 1000. This looses some bits of accuracy, provide our own version of cputime_to_nsecs that does not loose precision. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cputime: reset all accounting fields on forkMartin Schwidefsky2017-03-011-0/+3
| | | | | | | | | | | | | | copy_thread has to reset all cputime related field in the task struct, not only user_timer and system_timer. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/cputime: remove last traces of cputime_tMartin Schwidefsky2017-03-012-13/+3
| | | | | | | | | | | | | | The cputime_t type is a thing of the past, replace the last occurences of the type in the s390 code with a simple u64. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390: fix in-kernel program checksMartin Schwidefsky2017-03-011-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A program check inside the kernel takes a slightly different path in entry.S compare to a normal user fault. A recent change moved the store of the breaking event address into the path taken for in-kernel program checks as well, but %r14 has not been setup to point to the correct location. A wild store is the consequence. Move the store of the breaking event address to the code path for user space faults. Fixes: 34525e1f7e8d ("s390: store breaking event address only for program checks") Reported-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * s390/crypt: fix missing unlock in ctr_paes_crypt on error pathMartin Schwidefsky2017-03-011-1/+4
| | | | | | | | | | | | | | | | | | The ctr mode of protected key aes uses the ctrblk page if the ctrblk_lock could be acquired. If the protected key has to be reestablished and this operation fails the unlock for the ctrblk_lock is missing. Add it. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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