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2014-06-25Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-1/+1
Pull ARM SoC fixes from Arnd Bergmann: "A new set of bug fixes for 3.16, containing patches for seven platforms: at91: - drivers/misc fix for Kconfig PWM symbol - correction of several values in DT after conversion to CCF - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc imx: - Use GPIO for card CD/WP on imx51-babbage and eukrea-mbimxsd51, because controller base CD/WP is not working in esdhc driver due to runtime PM support - A couple of random ventana gw5xxx board fixes - Add IMX_IPUV3_CORE back to defconfig, which gets lost when moving IPUv3 driver out of staging tree - Fix enet/fec clock selection on imx6sl - Fix display node on imx53-m53evk board - A couple of Cubox-i updates from Russell, which were omitted from the merge window due to dependency integrator: - fix an OF-related regression against 3.15 mvebu: - mvebu (v7) - Fix broken SoC ID detection - Select ARM_CPU_SUSPEND for v7 - Remove armada38x compatible string (no users yet) - Enable Dove SoC in mvebu_v7_defconfig - kirkwood - Fix phy-connection-type on GuruPlug board qcom: - enable gsbi driver in defconfig - fix section mismatch warning in serial driver samsung: - use WFI macro in platform_do_lowpower because exynos cpuhotplug includes a hardcoded WFI instruction and it causes compile error in Thumb-2 mode. - fix GIC reg sizes for exynos4 SoCs - remove reset timer counter value during boot and resume for mct to fix a big jump in printk timestamps - fix pm code to check cortex-A9 for another exynos SoCs - don't rely on firmware's secondary_cpu_start for mcpm sti: - Ethernet clocks were wrongly defined for STiH415/416 platforms - STiH416 B2020 revision E DTS file name contained uppercase, change to lowercase" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (33 commits) ARM: at91/dt: sam9261: remove slow RC osc ARM: at91/dt: define sam9261ek slow crystal frequency ARM: at91/dt: sam9261: correctly define mainck ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values misc: atmel_pwm: fix Kconfig symbols ARM: integrator: fix OF-related regression ARM: mvebu: Fix the improper use of the compatible string armada38x using a wildcard ARM: dts: kirkwood: fix phy-connection-type for Guruplug ARM: EXYNOS: Don't rely on firmware's secondary_cpu_start for mcpm ARM: dts: imx51-eukrea-mbimxsd51-baseboard: unbreak esdhc. ARM: dts: imx51-babbage: Fix esdhc setup ARM: dts: mx5: Move the display out of soc {} node ARM: dts: mx5: Fix IPU port node placement ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms ARM: mvebu: Fix broken SoC ID detection ARM: imx_v6_v7_defconfig: Enable CONFIG_IMX_IPUV3_CORE ARM: multi_v7_defconfig: Add QCOM GSBI driver ARM: stih41x: Rename stih416-b2020-revE.dts to stih416-b2020e.dts tty: serial: msm: Fix section mismatch warning ...
2014-06-25Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixesArnd Bergmann1-1/+1
Merge "First AT91 fixes batch for 3.16" from Nicolas Ferre: - drivers/misc fix for Kconfig PWM symbol - correction of several values in DT after conversion to CCF - fix at91sam9261/at91sam9261ek mistake in slow crystal vs. slow RC osc * tag 'at91-fixes' of git://github.com/at91linux/linux-at91: ARM: at91/dt: sam9261: remove slow RC osc ARM: at91/dt: define sam9261ek slow crystal frequency ARM: at91/dt: sam9261: correctly define mainck ARM: at91/dt: sam9n12: correct PLLA ICPLL and OUT values ARM: at91/dt: sam9x5: correct PLLA ICPLL and OUT values misc: atmel_pwm: fix Kconfig symbols
2014-06-25misc: atmel_pwm: fix Kconfig symbolsNicolas Ferre1-1/+1
AT91 symbols AT91SAM9263, AT91SAM9RL, and AT91SAM9G45 do not exist and this patch changes them to their correct ARCH_* version. These symbols are chosen instead of the SOC_* ones because this driver is not converted to DT. Anyway, the ATMEL_PWM symbol and the associated driver will be removed soon, during the move to the PWM sub-system. Reported-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-06-21Merge tag 'char-misc-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds1-1/+2
Pull char / misc driver fixes from Greg KH: "Here are 3 patches, one a revert of the UIO patch you objected to in 3.16-rc1 and that no one wanted to defend, a w1 driver bugfix, and a MAINTAINERS update for the vmware balloon driver. All of these, except for the MAINTAINERS update which just got added, have been in linux-next just fine" * tag 'char-misc-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: MAINTAINERS: add entry for VMware Balloon driver w1: mxc_w1: Fix incorrect "presence" status Revert "uio: fix vma io range check in mmap"
2014-06-20MAINTAINERS: add entry for VMware Balloon driverDmitry Torokhov1-1/+2
Signed-off-by: Dmitry Torokhov <dtor@vmware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-17misc: vexpress: fix error handling vexpress_syscfg_regmap_init()Dan Carpenter1-4/+8
This function should be returning an ERR_PTR() on failure instead of NULL. Also there is a use after free bug if regmap_init() fails because we free "func" and then dereference doing the return. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-06-03Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into nextLinus Torvalds1-3/+8
Pull x86/UV changes from Ingo Molnar: "Continued updates for SGI UV 3 hardware support" * 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/UV: Fix conditional in gru_exit() x86/UV: Set n_lshift based on GAM_GR_CONFIG MMR for UV3
2014-06-03Merge tag 'char-misc-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into nextLinus Torvalds23-166/+1132
Pull char/misc driver patches from Greg KH: "Here is the big char / misc driver update for 3.16-rc1. Lots of different driver updates for a variety of different drivers and minor driver subsystems. All have been in linux-next with no reported issues" * tag 'char-misc-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (79 commits) hv: use correct order when freeing monitor_pages spmi: of: fixup generic SPMI devicetree binding example applicom: dereferencing NULL on error path misc: genwqe: fix uninitialized return value in genwqe_free_sync_sgl() miscdevice.h: Simple syntax fix to make pointers consistent. MAINTAINERS: Add miscdevice.h to file list for char/misc drivers. mcb: Add support for shared PCI IRQs drivers: Remove duplicate conditionally included subdirs misc: atmel_pwm: only build for supported platforms mei: me: move probe quirk to cfg structure mei: add per device configuration mei: me: read H_CSR after asserting reset mei: me: drop harmful wait optimization mei: me: fix hw ready reset flow mei: fix memory leak of mei_clients array uio: fix vma io range check in mmap drivers: uio_dmem_genirq: Fix memory leak in uio_dmem_genirq_probe() w1: do not unlock unheld list_mutex in __w1_remove_master_device() w1: optional bundling of netlink kernel replies connector: allow multiple messages to be sent in one packet ...
2014-06-02Merge tag 'cleanup-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into nextLinus Torvalds3-0/+334
Pull ARM SoC cleanups from Olof Johansson: "Cleanups for 3.16. Among these are: - a bunch of misc cleanups for Broadcom platforms, mostly housekeeping - enabling Common Clock Framework on the older s3c24xx Samsung chipsets - cleanup of the Versatile Express system controller code, moving it to syscon - power management cleanups for OMAP platforms plus a handful of other cleanups across the place" * tag 'cleanup-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (87 commits) ARM: kconfig: allow PCI support to be selected with ARCH_MULTIPLATFORM clk: samsung: fix build error ARM: vexpress: refine dependencies for new code clk: samsung: clk-s3c2410-dlck: do not use PNAME macro as it declares __initdata cpufreq: exynos: Fix the compile error ARM: S3C24XX: move debug-macro.S into the common space ARM: S3C24XX: use generic DEBUG_UART_PHY/_VIRT in debug macro ARM: S3C24XX: trim down debug uart handling ARM: compressed/head.S: remove s3c24xx special case ARM: EXYNOS: Remove unnecessary inclusion of cpu.h ARM: EXYNOS: Migrate Exynos specific macros from plat to mach ARM: EXYNOS: Remove exynos_subsys registration ARM: EXYNOS: Remove duplicate lines in Makefile ARM: EXYNOS: use v7_exit_coherency_flush macro for cache disabling ARM: OMAP4: PRCM: remove references to cm-regbits-44xx.h from PRCM core files ARM: OMAP3/4: PRM: add support of late_init call to prm_ll_ops ARM: OMAP3/OMAP4: PRM: add prm_features flags and add IO wakeup under it ARM: OMAP3/4: PRM: provide io chain reconfig function through irq setup ARM: OMAP2+: PRM: remove unnecessary cpu_is_XXX calls from prm_init / exit ARM: OMAP2+: PRCM: cleanup some header includes ...
2014-06-02Merge tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci into nextLinus Torvalds1-1/+1
Pull PCI changes from Bjorn Helgaas: "Enumeration - Notify driver before and after device reset (Keith Busch) - Use reset notification in NVMe (Keith Busch) NUMA - Warn if we have to guess host bridge node information (Myron Stowe) - Work around AMD Fam15h BIOSes that fail to provide _PXM (Suravee Suthikulpanit) - Clean up and mark early_root_info_init() as deprecated (Suravee Suthikulpanit) Driver binding - Add "driver_override" for force specific binding (Alex Williamson) - Fail "new_id" addition for devices we already know about (Bandan Das) Resource management - Support BAR sizes up to 8GB (Nikhil Rao, Alan Cox) - Don't move IORESOURCE_PCI_FIXED resources (Bjorn Helgaas) - Mark SBx00 HPET BAR as IORESOURCE_PCI_FIXED (Bjorn Helgaas) - Fail safely if we can't handle BARs larger than 4GB (Bjorn Helgaas) - Reject BAR above 4GB if dma_addr_t is too small (Bjorn Helgaas) - Don't convert BAR address to resource if dma_addr_t is too small (Bjorn Helgaas) - Don't set BAR to zero if dma_addr_t is too small (Bjorn Helgaas) - Don't print anything while decoding is disabled (Bjorn Helgaas) - Don't add disabled subtractive decode bus resources (Bjorn Helgaas) - Add resource allocation comments (Bjorn Helgaas) - Restrict 64-bit prefetchable bridge windows to 64-bit resources (Yinghai Lu) - Assign i82875p_edac PCI resources before adding device (Yinghai Lu) PCI device hotplug - Remove unnecessary "dev->bus" test (Bjorn Helgaas) - Use PCI_EXP_SLTCAP_PSN define (Bjorn Helgaas) - Fix rphahp endianess issues (Laurent Dufour) - Acknowledge spurious "cmd completed" event (Rajat Jain) - Allow hotplug service drivers to operate in polling mode (Rajat Jain) - Fix cpqphp possible NULL dereference (Rickard Strandqvist) MSI - Replace pci_enable_msi_block() by pci_enable_msi_exact() (Alexander Gordeev) - Replace pci_enable_msix() by pci_enable_msix_exact() (Alexander Gordeev) - Simplify populate_msi_sysfs() (Jan Beulich) Virtualization - Add Intel Patsburg (X79) root port ACS quirk (Alex Williamson) - Mark RTL8110SC INTx masking as broken (Alex Williamson) Generic host bridge driver - Add generic PCI host controller driver (Will Deacon) Freescale i.MX6 - Use new clock names (Lucas Stach) - Drop old IRQ mapping (Lucas Stach) - Remove optional (and unused) IRQs (Lucas Stach) - Add support for MSI (Lucas Stach) - Fix imx6_add_pcie_port() section mismatch warning (Sachin Kamat) Renesas R-Car - Add gen2 device tree support (Ben Dooks) - Use new OF interrupt mapping when possible (Lucas Stach) - Add PCIe driver (Phil Edworthy) - Add PCIe MSI support (Phil Edworthy) - Add PCIe device tree bindings (Phil Edworthy) Samsung Exynos - Remove unnecessary OOM messages (Jingoo Han) - Fix add_pcie_port() section mismatch warning (Sachin Kamat) Synopsys DesignWare - Make MSI ISR shared IRQ aware (Lucas Stach) Miscellaneous - Check for broken config space aliasing (Alex Williamson) - Update email address (Ben Hutchings) - Fix Broadcom CNB20LE unintended sign extension (Bjorn Helgaas) - Fix incorrect vgaarb conditional in WARN_ON() (Bjorn Helgaas) - Remove unnecessary __ref annotations (Bjorn Helgaas) - Add arch/x86/kernel/quirks.c to MAINTAINERS PCI file patterns (Bjorn Helgaas) - Fix use of uninitialized MPS value (Bjorn Helgaas) - Tidy x86/gart messages (Bjorn Helgaas) - Fix return value from pci_user_{read,write}_config_*() (Gavin Shan) - Turn pcibios_penalize_isa_irq() into a weak function (Hanjun Guo) - Remove unused serial device IDs (Jean Delvare) - Use designated initialization in PCI_VDEVICE (Mark Rustad) - Fix powerpc NULL dereference in pci_root_buses traversal (Mike Qiu) - Configure MPS on ARM (Murali Karicheri) - Remove unnecessary includes of <linux/init.h> (Paul Gortmaker) - Move Open Firmware devspec attribute to PCI common code (Sebastian Ott) - Use pdev->dev.groups for attribute creation on s390 (Sebastian Ott) - Remove pcibios_add_platform_entries() (Sebastian Ott) - Add new ID for Intel GPU "spurious interrupt" quirk (Thomas Jarosch) - Rename pci_is_bridge() to pci_has_subordinate() (Yijing Wang) - Add and use new pci_is_bridge() interface (Yijing Wang) - Make pci_bus_add_device() void (Yijing Wang) DMA API - Clarify physical/bus address distinction in docs (Bjorn Helgaas) - Fix typos in docs (Emilio López) - Update dma_pool_create ()and dma_pool_alloc() descriptions (Gioh Kim) - Change dma_declare_coherent_memory() CPU address to phys_addr_t (Bjorn Helgaas) - Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory() (Bjorn Helgaas)" * tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (92 commits) MAINTAINERS: Add generic PCI host controller driver PCI: generic: Add generic PCI host controller driver PCI: imx6: Add support for MSI PCI: designware: Make MSI ISR shared IRQ aware PCI: imx6: Remove optional (and unused) IRQs PCI: imx6: Drop old IRQ mapping PCI: imx6: Use new clock names i82875p_edac: Assign PCI resources before adding device ARM/PCI: Call pcie_bus_configure_settings() to set MPS PCI: imx6: Fix imx6_add_pcie_port() section mismatch warning PCI: Make pci_bus_add_device() void PCI: exynos: Fix add_pcie_port() section mismatch warning PCI: Introduce new device binding path using pci_dev.driver_override PCI: rcar: Add gen2 device tree support PCI: cpqphp: Fix possible null pointer dereference PCI: rcar: Add R-Car PCIe device tree bindings PCI: rcar: Add MSI support for PCIe PCI: rcar: Add Renesas R-Car PCIe driver PCI: Fix return value from pci_user_{read,write}_config_*() PCI: exynos: Remove unnecessary OOM messages ...
2014-05-27misc: genwqe: fix uninitialized return value in genwqe_free_sync_sgl()Christian Engelmayer1-1/+1
Function genwqe_free_sync_sgl() returns the value of variable 'rc'. 'rc' is only set in the error paths, thus initialize it by 0. Coverity CID 1204242. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27misc: atmel_pwm: only build for supported platformsArnd Bergmann1-1/+2
There is architecture code in mach-at91 that depends on the CONFIG_ATMEL_PWM symbol in order to call the soc-specific at91_add_device_pwm function. While all of this is about code that will be removed in the future, using DT probing and the PWM framework, we currently get a build failure: arch/arm/mach-at91/built-in.o: In function `at91_pwm_leds': arch/arm/mach-at91/leds.c:88: undefined reference to `at91_add_device_pwm' This patch ensures we only try to build this driver on platforms on which it will build and work. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27mei: me: move probe quirk to cfg structureTomas Winkler4-34/+54
Move quirk FW type detector to cfg structure Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27mei: add per device configurationAlexander Usyskin8-52/+144
Add mei_cfg structure that holds per device configuration data and hooks, as the first step we add firmware status register offsets Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27mei: me: read H_CSR after asserting resetTomas Winkler1-0/+12
According the spec the host should read H_CSR again after asserting reset H_RST to ensure that reset was read by the firmware Cc: stable@vger.kernel.org Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27mei: me: drop harmful wait optimizationTomas Winkler1-3/+1
It my take time till ME_RDY will be cleared after the reset, so we cannot check the bit before we got the interrupt Cc: stable@vger.kernel.org Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27mei: me: fix hw ready reset flowTomas Winkler1-3/+6
We cleared H_RST for H_CSR on spurious interrupt generated when ME_RDY while cleared and not while ME_RDY is set. The spurious interrupt is not delivered on all platforms in this case the driver may fail to initialize. Cc: stable@vger.kernel.org Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27mei: fix memory leak of mei_clients arrayTomas Winkler3-18/+31
we never freed the mei_clients array on driver shutdown only on reset add mei_hbm_reset function that wraps the hbm cleanup Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27misc: pch_phub: Fix Kconfig dependenciesJean Delvare1-1/+1
The pch_phub driver is for a companion chip to the Intel Atom E600 series processors. These are 32-bit x86 processors so the driver is only needed on X86_32. Add COMPILE_TEST as an alternative, so that the driver can still be build-tested elsewhere. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-15mfd: vexpress: Define the device as MFD cellsPawel Moll3-0/+334
This patch - finally, after over 6 months! :-( - addresses Samuel's request to split the vexpress-sysreg driver into smaller portions and define the device in a form of MFD cells: * LEDs code has been completely removed and replaced with "gpio-leds" nodes in the tree (referencing dedicated GPIO subnodes in sysreg - bindings documentation updated); this also better fits the reality as some variants of the motherboard don't have all the LEDs populated * syscfg bridge code has been extracted into a separate driver (placed in drivers/misc for no better place) * all the ID & MISC registers are defined as sysconf making them available for other drivers should they need to use them (and also to the user via /sys/kernel/debug/regmap which can be helpful in platform debugging) Signed-off-by: Pawel Moll <pawel.moll@arm.com> Acked-by: Lee Jones <lee.jones@linaro.org>
2014-05-03misc: arm-charlcd: add DT probe supportRob Herring1-0/+7
Add the DT match table to enable DT based probe matching. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03misc: (ds1682) replace obsolete simple_strtoull() with kstrtoull()Sebastien Bourdelin1-3/+2
simple_strtoull() is obsolete, use the newer kstrtoull() instead. Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03misc: genwqe: Fix format string mismatch in card_debugfs.cMasanari Iida1-2/+2
Fix two format string mismatch in genwqe_init_debugfs() Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03misc: Add hardware dependencies to Atmel driversJean Delvare1-2/+2
According to the driver descriptions, the atmel_pwm and atmel-ssc drivers are only useful on Atmel AT32 and AT91 systems. So add hardware dependencies to these drivers to hide them on other systems. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: set connecting state just upon connection request is sent to the fwAlexander Usyskin5-7/+1
Adding power gating introduced new waiting state for client also during connection attempt, a connection request can be queued for later either due device is power gated or due to other on going connection. We setting client connection state before start of full connect procedure so in both cased the client state will be MEI_FILE_CONNECTING which create interlock between the two connection attempts, both detecting that another connection is in progress. The interlock is resolved by moving client to connecting state only upon connection request transmission, so the first cb in queue can be processed. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: make return values consistent across the driverAlexander Usyskin2-4/+3
Follow-up for bits missed in commit 7ca96aa278f8b9983184e318b06a0ed9ad0297b8 mei: make return values consistent across the driver Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: extract fw status registersAlexander Usyskin5-5/+127
Fetch FW status registers, as they are important in in understanding of FW reset reasons Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: me: bump hbm version to 1.1 to support power gatingTomas Winkler1-1/+1
Communicate hbm version 1.1 to firmware to tell that we now support power gating isolation protocol Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: txe: use runtime PG pm domain for non wakeable devicesAlexander Usyskin1-0/+49
For non wakeable devices we can't use pci runtime framework as we are not able to wakeup from D3 states. Instead we create new pg runtime domain that only drives TXE power gating protocol to reduce the power consumption. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: me: use runtime PG pm domain for non wakeable devicesTomas Winkler2-0/+53
For non wakeable devices we can't use pci runtime framework as we are not able to wakeup from D3 states. Instead we create new pg runtime domain that only drives ME power gating protocol to reduce the power consumption. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: use runtime pm in write and read flowTomas Winkler1-13/+71
Take rpm token on operation start to initiate rpm resume if needed. Mark last busy time, release token and advice rpm framework to try to autosuspend on operation end. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: txe: add runtime pm frameworkAlexander Usyskin2-4/+99
Add runtime pm framework for TXE devices. The runtime pm handlers are used to run txe power gating isolation protocol. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: me: add runtime pm frameworkTomas Winkler3-2/+100
Add runtime pm framework for ME devices. The runtime pm handlers are used to run me power gating isolation protocol Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: add function to check write queuesTomas Winkler2-0/+23
The driver needs to check whether the write queue idle before entering power gating Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: me: add pg exit and entry flow commandsTomas Winkler4-4/+95
For power gating entry we write hbm pg entry request command and then we set pg register For power gating exit we clear pg register and wait for exit request hbm command. Exit power gating request might also be initiated by the firmware w/o explicit driver request The power gating state is tracked by pg_state member of me_hw Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: expose hardware power gating state to mei layerTomas Winkler5-19/+93
Since the runtime pm and the internal power gating cannot be in complete sync in regards to I/O operations, we need to expose the device hardware internal power gating state to mei layer 2. We add pg_state handler that translate the hw internal pg state to mei layer 2. We add power gating event variable to keep power track of power gating transitions Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Reviewed-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: condition PGI support on HW and HBM versionTomas Winkler4-0/+67
Enable power gating isolation only if hw and fw support it. This is indicated by ME_PGIC_HRA bit in ME_CSR_HA register and on HBM protocol version. The information is exported to MEI layer through new pg_is_enabled hw op. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: me: add power gating isolation register write wrappersTomas Winkler1-0/+29
Add entry and exit power gating isolation register write handler. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: me: introduce power gating registersTomas Winkler1-0/+9
LPT devices have internal power gating handled through registers and hbm calls Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03mei: implement power gating isolation hbm layerTomas Winkler5-0/+60
Add send message functions and receive dispatch stubs for power gating isolation hbm protocol. The protocol consist of requests for entering and exiting the power gating isolation state and their responses. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-25GenWQE: Use pci_enable_msi_exact() instead of pci_enable_msi_block()Alexander Gordeev1-1/+1
As result of deprecation of MSI-X/MSI enablement functions pci_enable_msix() and pci_enable_msi_block() all drivers using these two interfaces need to be updated to use the new pci_enable_msi_range() or pci_enable_msi_exact() and pci_enable_msix_range() or pci_enable_msix_exact() interfaces. Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16misc: Grammar s/addition/additional/Geert Uytterhoeven1-2/+2
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16mei: ignore client writing state during cb completionAlexander Usyskin2-4/+2
Ignore client writing state during cb completion to fix a memory leak. When moving cbs to the completion list we should not look at writing_state as this state can be already overwritten by next write, the fact that a cb is on the write waiting list means that it was already written to the HW and we can safely complete it. Same pays for wait in poll handler, we do not have to check the state wake is done after completion list processing. Cc: stable@vger.kernel.org Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16mei: me: do not load the driver if the FW doesn't support MEI interfaceTomas Winkler2-7/+28
NM and SPS FW types that may run on ME device on server platforms do not have valid MEI/HECI interface and driver should not be bound to it as this might lead to system hung. In practice not all BIOSes effectively hide such devices from the OS and in some cases it is not possible. We determine FW type by examining Host FW status registers in order to unbind the driver. In this patch we are adding check for ME on Cougar Point, Lynx Point Devices Cc: stable <stable@vger.kernel.org> # 3.10+ Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Tested-by: Nikola Ciprich <nikola.ciprich@linuxbox.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16GenWQE: Increase driver version numberFrank Haverkamp1-1/+1
Increase genwqe driver version number. Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16GenWQE: Fix multithreading problemsFrank Haverkamp3-86/+180
When being used in a multithreaded application there were problems with memory pages/cachelines accessed by multiple threads/cpus at the same time, while doing DMA transfers to/from those. To avoid such situations this fix is creating a copy of the first and the last page if it is not fully used. The data is copied from user-space into those pages and results are copied back when the DDCB-request is successfully finished. Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16GenWQE: Ensure rc is not returning an uninitialized valueColin Ian King1-1/+1
rc is not initialized, so genwqe_finish_queue() either returns -EIO or garbage. Fortunately the return is not being checked by any callers, so this has not yet caused any problems. Even so, it makes sense to fix this small bug in case is is checked in future. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16GenWQE: Add wmb before DDCB is startedFrank Haverkamp1-0/+4
Needed to add wmb() before we send the DDCB for execution. Without the syncronizing it failed on System p. Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-16GenWQE: Enable access to VPD flash areaFrank Haverkamp1-1/+5
In addition to the two flash partitions we used so far, there is a 3rd one which is enabled for usage by this fix. Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-07drivers/misc/sgi-gru/grukdump.c: cleanup gru_dump_context() a littleDan Carpenter1-3/+3
"ret" is zero here so we can remove the "!ret" part of the condition. "uhdr" is alread a __user pointer so we can remove the cast. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Dimitri Sivanich <sivanich@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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