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2020-03-25s390/qdio: extend polling support to multiple queuesJulian Wiedmann1-5/+4
When the support for polling drivers was initially added, it only considered Input Queue 0. But as QDIO interrupts are actually for the full device and not a single queue, this doesn't really fit for configurations where multiple Input Queues are used. Rework the qdio code so that interrupts for a polling driver are not split up into actions for each queue. Instead deliver the interrupt as a single event, and let the driver decide which queue needs what action. When re-enabling the QDIO interrupt via qdio_start_irq(), this means that the qdio code needs to (1) put _all_ eligible queues back into a state where they raise IRQs, (2) and afterwards check _all_ eligible queues for new work to bridge the race window. On the qeth side of things (as the only qdio polling driver), we can now add CQ polling support to the main NAPI poll routine. It doesn't consume NAPI budget, and to avoid hogging the CPU we yield control after completing one full queue worth of buffers. The subsequent qdio_start_irq() will check for any additional work, and have us re-schedule the NAPI instance accordingly. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25x86/kexec: Make relocate_kernel_64.S objtool cleanPeter Zijlstra2-1/+7
Having fixed the biggest objtool issue in this file; fix up the rest and remove the exception. Suggested-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lkml.kernel.org/r/20200324160924.202621656@infradead.org
2020-03-25x86/kexec: Use RIP relative addressingPeter Zijlstra1-4/+1
Normally identity_mapped is not visible to objtool, due to: arch/x86/kernel/Makefile:OBJECT_FILES_NON_STANDARD_relocate_kernel_$(BITS).o := y However, when we want to run objtool on vmlinux.o there is no hiding it: vmlinux.o: warning: objtool: .text+0x4c0f1: unsupported intra-function call Replace the (i386 inspired) pattern: call 1f 1: popq %r8 subq $(1b - relocate_kernel), %r8 With a x86_64 RIP-relative LEA: leaq relocate_kernel(%rip), %r8 Suggested-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lkml.kernel.org/r/20200324160924.143334345@infradead.org
2020-03-25Merge tag 'at91-5.7-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/configArnd Bergmann1-0/+1
AT91 defconfig for 5.7 - Add sama5d4 watchdog to at91_dt_defconfig as it is present on sam9x60 * tag 'at91-5.7-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: configs: at91: enable sama5d4 compatible watchdog Link: https://lore.kernel.org/r/20200322085711.GA208700@piout.net Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'omap-for-v5.7/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/configArnd Bergmann1-4/+14
Defconfig changes for omaps for v5.7 merge window We want to enable some more features for omap2plus_defconfig to make it more usable: - Enable scururity for ext4 so setcap works - Enable simple-pm-bus so it can be later on be configured in the dts files as needed - Enable zram as loadable modules as we do have devices using it - Enable more devices for droid4 for 1-wire battery eeprom and isl29028 proximity sensor - Enable mcpdm clocks from the PMIC as loadable modules - Enable ina2xx_adc as loadable module - And finally let's also omap2plus_deconfig for moved and dropped options * tag 'omap-for-v5.7/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: omap2plus_defconfig: Update for moved and dropped options ARM: omap2plus_defconfig: Enable ina2xx_adc as a loadable module ARM: omap2plus_defconfig: Enable McPDM optional PMIC clock as modules ARM: omap2plus_defconfig: Enable more droid4 devices as loadable modules ARM: omap2plus_defconfig: Enable zram as loadable modules ARM: omap2plus_defconfig: Enable simple-pm-bus ARM: omap2plus_defconfig: Enable ext4 security for setcap Link: https://lore.kernel.org/r/pull-1584575344-983293@atomide.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'imx-defconfig-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/configArnd Bergmann3-10/+58
i.MX defconfig changes for 5.7: - A seris from Li Yang to make defconfig useful for NXP LS family SoCs. Most drivers are built as module there, but those helping boot system with NFS are enabled built-in. - Enable i.MX8MP pinctrl and i.MX8MM thermal driver support in defconfig. - Enable i.MX DRM driver support for multi_v7_defconfig. - Enable ATMEL_MXT and AD7879 touch support for imx_v6_v7_defconfig. * tag 'imx-defconfig-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (22 commits) arm64: defconfig: Enable e1000 device arm64: defconfig: Enable PHY devices used on QorIQ boards arm64: defconfig: Enable RTC devices for QorIQ boards arm64: defconfig: Enable flash device drivers for QorIQ boards arm64: defconfig: Enable ARM Mali display driver arm64: defconfig: Enable QorIQ GPIO driver arm64: defconfig: Enable QorIQ IFC NAND controller driver arm64: defconfig: Enable ARM SBSA watchdog driver arm64: defconfig: Enable QorIQ cpufreq driver arm64: defconfig: Enable NXP/FSL SPI controller drivers arm64: defconfig: Enable ENETC Ethernet controller and FELIX switch arm64: defconfig: Enable QorIQ DPAA2 drivers arm64: defconfig: Enable QorIQ DPAA1 drivers arm64: defconfig: Enable NXP flexcan driver arm64: defconfig: run through savedefconfig for ordering arm64: defconfig: Enable CONFIG_IMX8MM_THERMAL as module arm64: defconfig: add i.MX system controller thermal support ARM: multi_v7_defconfig: enable drm imx support arm64: defconfig: Enable CONFIG_PCIE_LAYERSCAPE_GEN4 ARM: imx_v6_v7_defconfig: Enable TOUCHSCREEN_AD7879 ... Link: https://lore.kernel.org/r/20200318051918.32579-6-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'qcom-defconfig-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/configArnd Bergmann1-0/+6
Qualcomm ARM defconfig updates for v5.7 Enable QRTR and the Broadcomm bluetooth driver in the qcom_defconfig, for usage on the 8974 devices. * tag 'qcom-defconfig-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: ARM: qcom_defconfig: Enable QRTR ARM: qcom_defconfig: add Broadcom bluetooth options Link: https://lore.kernel.org/r/20200318043931.GC470201@yoga Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'qcom-arm64-defconfig-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/configArnd Bergmann1-0/+17
Qualcomm ARM64 defconfig updates for v5.7 Enable SDM845 audio, display and gpu related configs and the Truly NT35597 panel driver, all relevant for various SDM845 based boards. Enable IPQ6018 clocks and pinctrl and the pmic vibrator driver for PM8916. * tag 'qcom-arm64-defconfig-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: arm64: defconfig: Enable Qualcomm SDM845 audio configs arm64: defconfig: Enable Truly NT35597 WQXGA panel arm64: defconfig: Enable Qualcomm SDM845 display and gpu clocks arm64: defconfig: Enable qcom ipq6018 clock and pinctrl arm64: defconfig: Enable Qualcomm PM8XXX vibrator support Link: https://lore.kernel.org/r/20200318043856.GB470201@yoga Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'samsung-defconfig-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/configArnd Bergmann1-1/+10
Samsung defconfig changes for v5.7 1. Enable Energy Model and Multi-core scheduler because they fit common use of Exynos SoCs - mobile devices, 2. Enable more drivers for GalaxyS3/Trats2. * tag 'samsung-defconfig-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: exynos_defconfig: Add more drivers for GalaxyS3/Trats2 ARM: exynos_defconfig: Enable SCHED_MC and ENERGY_MODEL ARM: exynos_defconfig: Enable SquashFS and increase RAM block device size Link: https://lore.kernel.org/r/20200316175652.5604-2-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'tegra-for-5.7-arm-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/configArnd Bergmann2-0/+2
ARM: tegra: Default configuration changes for v5.7-rc1 These patches enable the new, unified CPU idle driver for Tegra20, Tegra30 and Tegra114. * tag 'tegra-for-5.7-arm-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: ARM: tegra: Enable Tegra cpuidle driver in tegra_defconfig ARM: multi_v7_defconfig: Enable Tegra cpuidle driver Link: https://lore.kernel.org/r/20200313165848.2915133-7-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'arm-soc/for-5.7/defconfig' of https://github.com/Broadcom/stblinux into arm/configArnd Bergmann1-0/+5
This pull request contains Broadcom ARM-based SoCs defconfig changes for v5.7, please pull the following: - Marek enables the Raspberry Pi 4 specific drivers: GENET, thermal, and GPIO regulator support in bcm2835_defconfig * tag 'arm-soc/for-5.7/defconfig' of https://github.com/Broadcom/stblinux: ARM: bcm2835_defconfig: add support for Raspberry Pi4 Link: https://lore.kernel.org/r/20200311212012.9418-1-f.fainelli@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'hisi-arm64-defconfig-for-5.7' of git://github.com/hisilicon/linux-hisi into arm/configArnd Bergmann1-0/+1
ARM64: hisilicon: defconfig updates for 5.7 - Enable MEGARAID_SAS to be able to boot from disk for the D06CS development board * tag 'hisi-arm64-defconfig-for-5.7' of git://github.com/hisilicon/linux-hisi: arm64: defconfig: Enable MEGARAID_SAS Link: https://lore.kernel.org/r/5E61F3C1.1080909@hisilicon.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25MIPS: Exclude more dsemul code when CONFIG_MIPS_FP_SUPPORT=nYousong Zhou3-19/+29
This furthers what commit 42b10815d559 ("MIPS: Don't compile math-emu when CONFIG_MIPS_FP_SUPPORT=n") has done Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-03-25MIPS/tlbex: Fix LDDIR usage in setup_pw() for Loongson-3Huacai Chen1-1/+4
LDDIR/LDPTE is Loongson-3's acceleration for Page Table Walking. If BD (Base Directory, the 4th page directory) is not enabled, then GDOffset is biased by BadVAddr[63:62]. So, if GDOffset (aka. BadVAddr[47:36] for Loongson-3) is big enough, "0b11(BadVAddr[63:62])|BadVAddr[47:36]|...." can far beyond pg_swapper_dir. This means the pg_swapper_dir may NOT be accessed by LDDIR correctly, so fix it by set PWDirExt in CP0_PWCtl. Cc: <stable@vger.kernel.org> Signed-off-by: Pei Huang <huangpei@loongson.cn> Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-03-25MIPS: do not compile generic functions for CONFIG_CAVIUM_OCTEON_SOCMasahiro Yamada4-0/+21
MIPS provides multiple definitions for the following functions: fw_init_cmdline __delay __udelay __ndelay memmove __rmemcpy memcpy __copy_user The generic ones are defined in lib-y objects, which are overridden by the Octeon ones when CONFIG_CAVIUM_OCTEON_SOC is enabled. The use of EXPORT_SYMBOL in static libraries potentially causes a problem for the llvm linker [1]. So, I want to forcibly link lib-y objects to vmlinux when CONFIG_MODULES=y. As a groundwork, we must fix multiple definitions that have previously been hidden by lib-y. If you look at lib/string.c, arch can define __HAVE_ARCH_* to opt out the generic implementation. Similarly, this commit adds CONFIG_HAVE_PLAT_* to allow a platform to opt out the MIPS generic code. [1]: https://github.com/ClangBuiltLinux/linux/issues/515 Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-03-25MIPS: Loongson64: Load built-in dtbsJiaxun Yang4-0/+53
Load proper dtb according to firmware passed parameters and CPU PRID. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Co-developed-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-03-25MIPS: Loongson64: Add generic dtsJiaxun Yang7-2/+149
Add generic device dts for Loongson-3 devices. They are currently almost identical but will be different later. Some PCH devices like PCI Host Bridge is still enabled by platform code for now. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Co-developed-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-03-25MIPS: Loongson64: Drop legacy IRQ codeJiaxun Yang6-209/+21
We've made generic irqchip drivers for Loongson-3 platform, it's time to say goodbye to these legacy code. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Co-developed-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-03-25Merge tag 'renesas-arm64-defconfig-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/configArnd Bergmann1-1/+22
Renesas ARM64 defconfig updates for v5.7 - Restore R-Car M3-W support, - Enable additional support for Renesas platforms. * tag 'renesas-arm64-defconfig-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel: arm64: defconfig: Enable additional support for Renesas platforms arm64: defconfig: Replace ARCH_R8A7796 by ARCH_R8A77960 Link: https://lore.kernel.org/r/20200226110221.19288-4-geert+renesas@glider.be Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge branch 'x86/cpu' into perf/core, to resolve conflictIngo Molnar29-203/+293
Conflicts: arch/x86/events/intel/uncore.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-03-25Merge tag 'oxnas-arm-soc-dt-fixes-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas into arm/fixesArnd Bergmann2-4/+4
- interrupt controller mask init fix to avoid spurious irq after soft reset * tag 'oxnas-arm-soc-dt-fixes-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/narmstrong/linux-oxnas: ARM: dts: oxnas: Fix clear-mask property Link: https://lore.kernel.org/r/1cc83d6b-78de-9160-59bf-77cfe726a365@baylibre.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'arm-soc/for-5.6/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux into arm/fixesArnd Bergmann2-0/+2
This pull request contains Broadcom ARM-based SoCs Device Tree fixes for 5.6, please pull the following: - Nick fixes the missing pinctrl-names property for the Raspberry Pi Zero Wireless DTS - Nicolas fixes the VC4 firmware node dma-range property which does not have the limitations of the soc's bus node * tag 'arm-soc/for-5.6/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux: ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations ARM: bcm2835-rpi-zero-w: Add missing pinctrl name Link: https://lore.kernel.org/r/20200323025246.22713-1-f.fainelli@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25arm64: dts: Fix leftover entry-methods for PSCILinus Walleij2-2/+2
These two device trees were either missed or added after the commit correcting the "entry-method" from "arm,psci" to just "psci" as per the binding. Link: https://lore.kernel.org/r/20200322115846.16265-1-linus.walleij@linaro.org Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Fabio Estevam <festevam@gmail.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Chunyan Zhang <chunyan.zhang@unisoc.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'omap-for-v5.6/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixesArnd Bergmann7-23/+37
Few more fixes for omaps Just few dts fixes: - A fix droid4 touchscreen stopping working with lost gpio interrupts - Also limit omap5 dma range similar to what we've recently done for dra7 * tag 'omap-for-v5.6/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: omap5: Add bus_dma_limit for L3 bus ARM: dts: omap4-droid4: Fix lost touchscreen interrupts ARM: dts: dra7: Add bus_dma_limit for L3 bus ARM: dts: N900: fix onenand timings ARM: dts: Fix dm814x Ethernet by changing to use rgmii-id mode Link: https://lore.kernel.org/r/pull-1584575254-461940@atomide.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25ARM: dts: exynos: Fix regulator node aliasing on Midas-based boardsMarek Szyprowski2-3/+3
Commit d4ec0cb05064 ("ARM: dts: exynos: Add support for the touch-sensitive buttons on Midas family") added a new fixed regulator ("voltage-regulator-6") to base "midas" .dtsi, but it didn't update the clients of that .dtsi, which define their own fixed regulators starting from the "voltage-regulator-6". This results in aliasing of the regulator dt nodes and breaks operation of OLED panel due to lack of power supply. Fix this by increasing the numbers in the fixed regulator names for those boards. Link: https://lore.kernel.org/r/20200316173710.3144-1-krzk@kernel.org Fixes: d4ec0cb05064 ("ARM: dts: exynos: Add support for the touch-sensitive buttons on Midas family") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'imx-fixes-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixesArnd Bergmann1-2/+2
i.MX fixes for 5.6, round 2: - Fix minimum voltage setting of vdd_arm and vdd_soc on i.MX6 phycore-som board. * tag 'imx-fixes-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage Link: https://lore.kernel.org/r/20200316032555.GD17221@dragon Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'sunxi-fixes-for-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixesArnd Bergmann1-1/+1
Allwinner Fixes for 5.6 - part 2 This follows up on the previous 5.6 fixes tag with a fix for the A33 Security System (crypto offloading hardware). The hardware was found to not be compatible with existing hardware and a new compatible was needed. The driver change was picked up right before the previous -rc6 and the DT bindings and DT changes were not picked up. The goal is to have all the changes in the same release, that is v5.6. * tag 'sunxi-fixes-for-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: ARM: dts: sun8i: a33: add the new SS compatible dt-bindings: crypto: add new compatible for A33 SS Link: https://lore.kernel.org/r/20200313060727.GA23962@wens.csie.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'sunxi-fixes-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixesArnd Bergmann3-69/+69
Allwinner Fixes for v5.6 A pretty normal set of fixes for v5.6: - Fix reversed macros used for A83T EMAC clock and reset - Fix camera regulator voltage and USB OTG for TBS-A711 - 16-bit / 8-bit mixed read fix for our RSB driver - Fix SPI controller base address for R40 - Reorder device nodes based on base address for R40 * tag 'sunxi-fixes-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: ARM: dts: sun8i: r40: Move SPI device nodes based on address order ARM: dts: sun8i: r40: Fix register base address for SPI2 and SPI3 ARM: dts: sun8i: r40: Move AHCI device node based on address order bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads ARM: dts: sun8i-a83t-tbs-a711: Fix USB OTG mode detection ARM: dts: sun8i-a83t-tbs-a711: HM5065 doesn't like such a high voltage ARM: dts: sun8i: a83t: Fix incorrect clk and reset macros for EMAC device Link: https://lore.kernel.org/r/20200313055233.GA19649@wens.csie.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25Merge tag 'omap-for-v5.7/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/driversArnd Bergmann1-0/+6
Driver changes for ti-sysc for v5.7 merge window Driver changes for ti-sysc interconnect target module driver mostly to be able to probe display subsystem (DSS) without platform data: - Rename clk_enable/disable quirks to less confusing pre and post reset quirks - Enable module reset to work with modules with no sysconfig register - Also consider non-existing module register when matching quirks - Don't warn with nested ti-sysc devices - Implement basic SoC revision handling - Detect DSS related devices - Implement DSS reset quirks Note that there is also a DSS driver specific probe fix to allow probing devices configured for interconnect target module data that was agreed to be merged along with the ti-sysc driver changes. And then there also changes to handle RTC, EDMA and PRUSS: - Add module unlock quirk for RTC - Detect EDMA modules - Add support for handling PRUSS * tag 'omap-for-v5.7/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: bus: ti-sysc: Add support for PRUSS SYSC type dt-bindings: bus: ti-sysc: Add support for PRUSS SYSC type bus: ti-sysc: Detect EDMA and set quirk flags for tptc bus: ti-sysc: Fix wrong offset for display subsystem reset quirk bus: ti-sysc: Implement display subsystem reset quirk bus: ti-sysc: Detect display subsystem related devices bus: ti-sysc: Handle module unlock quirk needed for some RTC bus: ti-sysc: Implement SoC revision handling bus: ti-sysc: Don't warn about legacy property for nested ti-sysc devices bus: ti-sysc: Consider non-existing registers too when matching quirks bus: ti-sysc: Improve reset to work with modules with no sysconfig bus: ti-sysc: Rename clk related quirks to pre_reset and post_reset quirks bus: ti-sysc: Fix 1-wire reset quirk drm/omap: Prepare DSS for probing without legacy platform data Link: https://lore.kernel.org/r/pull-1583511417-919838@atomide.com-3 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-03-25parisc: Replace cpu_up/down() with add/remove_cpu()Qais Yousef1-1/+1
The core device API performs extra housekeeping bits that are missing from directly calling cpu_up/down(). See commit a6717c01ddc2 ("powerpc/rtas: use device model APIs and serialization during LPM") for an example description of what might go wrong. This also prepares to make cpu_up/down() a private interface of the CPU subsystem. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Helge Deller <deller@gmx.de> Link: https://lkml.kernel.org/r/20200323135110.30522-13-qais.yousef@arm.com
2020-03-25sparc: Replace cpu_up/down() with add/remove_cpu()Qais Yousef1-2/+2
The core device API performs extra housekeeping bits that are missing from directly calling cpu_up/down(). See commit a6717c01ddc2 ("powerpc/rtas: use device model APIs and serialization during LPM") for an example description of what might go wrong. This also prepares to make cpu_up/down() a private interface of the CPU subsystem. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: David S. Miller <davem@davemloft.net> Link: https://lkml.kernel.org/r/20200323135110.30522-12-qais.yousef@arm.com
2020-03-25powerpc: Replace cpu_up/down() with add/remove_cpu()Qais Yousef1-1/+1
The core device API performs extra housekeeping bits that are missing from directly calling cpu_up/down. See commit a6717c01ddc2 ("powerpc/rtas: use device model APIs and serialization during LPM") for an example description of what might go wrong. This also prepares to make cpu_up/down() a private interface of the CPU subsystem. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lkml.kernel.org/r/20200323135110.30522-11-qais.yousef@arm.com
2020-03-25x86/smp: Replace cpu_up/down() with add/remove_cpu()Qais Yousef3-19/+9
The core device API performs extra housekeeping bits that are missing from directly calling cpu_up/down(). See commit a6717c01ddc2 ("powerpc/rtas: use device model APIs and serialization during LPM") for an example description of what might go wrong. This also prepares to make cpu_up/down() a private interface of the CPU subsystem. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200323135110.30522-10-qais.yousef@arm.com
2020-03-25arm64: hibernate: Use bringup_hibernate_cpu()Qais Yousef1-8/+5
Use bringup_hibernate_cpu() instead of open coding it. [ tglx: Split out the core change ] Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/20200323135110.30522-9-qais.yousef@arm.com
2020-03-25arm64: Use reboot_cpu instead of hardconding it to 0Qais Yousef1-1/+1
Use `reboot_cpu` variable instead of hardcoding 0 as the reboot cpu in machine_shutdown(). Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/20200323135110.30522-8-qais.yousef@arm.com
2020-03-25arm64: Don't use disable_nonboot_cpus()Qais Yousef1-2/+2
disable_nonboot_cpus() is not safe to use when doing machine_down(), because it relies on freeze_secondary_cpus() which in turn is a suspend/resume related freeze and could abort if the logic detects any pending activities that can prevent finishing the offlining process. Beside disable_nonboot_cpus() is dependent on CONFIG_PM_SLEEP_SMP which is an othogonal config to rely on to ensure this function works correctly. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lkml.kernel.org/r/20200323135110.30522-7-qais.yousef@arm.com
2020-03-25ARM: Use reboot_cpu instead of hardcoding it to 0Qais Yousef1-1/+1
Use `reboot_cpu` variable instead of hardcoding 0 as the reboot cpu in machine_shutdown(). Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <linux@armlinux.org.uk> Link: https://lkml.kernel.org/r/20200323135110.30522-6-qais.yousef@arm.com
2020-03-25ARM: Don't use disable_nonboot_cpus()Qais Yousef1-2/+2
disable_nonboot_cpus() is not safe to use when doing machine_down(), because it relies on freeze_secondary_cpus() which in turn is a suspend/resume related freeze and could abort if the logic detects any pending activities that can prevent finishing the offlining process. Beside disable_nonboot_cpus() is dependent on CONFIG_PM_SLEEP_SMP which is an othogonal config to rely on to ensure this function works correctly. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <linux@armlinux.org.uk> Link: https://lkml.kernel.org/r/20200323135110.30522-5-qais.yousef@arm.com
2020-03-25ia64: Replace cpu_down() with smp_shutdown_nonboot_cpus()Qais Yousef1-7/+1
Use the new smp_shutdown_nonboot_cpus() instead of using cpu_down() directly. Use reboot_cpu instead of hardcoding the boot CPU to 0. This also prepares to make cpu_up/down() a private interface of the CPU subsystem. Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Link: https://lkml.kernel.org/r/20200323135110.30522-4-qais.yousef@arm.com
2020-03-25x86/alternatives: Mark text_poke_loc_init() staticQiujun Huang1-2/+2
The function is only used in this file so make it static. [ bp: Massage. ] Signed-off-by: Qiujun Huang <hqjagain@gmail.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: https://lkml.kernel.org/r/1583253732-18988-1-git-send-email-hqjagain@gmail.com
2020-03-25s390: use fallthrough;Joe Perches4-10/+9
Convert the various uses of fallthrough comments to fallthrough; Done via script Link: https://lore.kernel.org/lkml/b56602fcf79f849e733e7b521bb0e17895d390fa.1582230379.git.joe.com/ Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-03-25s390/cpum_sf: Fix wrong page count in error messageThomas Richter1-1/+3
When perf record -e SF_CYCLES_BASIC_DIAG runs with very high frequency, the samples arrive faster than the perf process can save them to file. Eventually, for longer running processes, this leads to the siutation where the trace buffers allocated by perf slowly fills up. At one point the auxiliary trace buffer is full and the CPU Measurement sampling facility is turned off. Furthermore a warning is printed to the kernel log buffer: cpum_sf: The AUX buffer with 0 pages for the diagnostic-sampling mode is full The number of allocated pages for the auxiliary trace buffer is shown as zero pages. That is wrong. Fix this by saving the number of allocated pages before entering the work loop in the interrupt handler. When the interrupt handler processes the samples, it may detect the buffer full condition and stop sampling, reducing the buffer size to zero. Print the correct value in the error message: cpum_sf: The AUX buffer with 256 pages for the diagnostic-sampling mode is full Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-03-25s390/diag: fix display of diagnose call statisticsMichael Mueller1-1/+1
Show the full diag statistic table and not just parts of it. The issue surfaced in a KVM guest with a number of vcpus defined smaller than NR_DIAG_STAT. Fixes: 1ec2772e0c3c ("s390/diag: add a statistic for diagnose calls") Cc: stable@vger.kernel.org Signed-off-by: Michael Mueller <mimu@linux.ibm.com> Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-03-25Merge branch 'for-next/kernel-ptrauth' into for-next/coreCatalin Marinas21-99/+382
* for-next/kernel-ptrauth: : Return address signing - in-kernel support arm64: Kconfig: verify binutils support for ARM64_PTR_AUTH lkdtm: arm64: test kernel pointer authentication arm64: compile the kernel with ptrauth return address signing kconfig: Add support for 'as-option' arm64: suspend: restore the kernel ptrauth keys arm64: __show_regs: strip PAC from lr in printk arm64: unwind: strip PAC from kernel addresses arm64: mask PAC bits of __builtin_return_address arm64: initialize ptrauth keys for kernel booting task arm64: initialize and switch ptrauth kernel keys arm64: enable ptrauth earlier arm64: cpufeature: handle conflicts based on capability arm64: cpufeature: Move cpu capability helpers inside C file arm64: ptrauth: Add bootup/runtime flags for __cpu_setup arm64: install user ptrauth keys at kernel exit time arm64: rename ptrauth key structures to be user-specific arm64: cpufeature: add pointer auth meta-capabilities arm64: cpufeature: Fix meta-capability cpufeature check
2020-03-25Merge branch 'for-next/asm-cleanups' into for-next/coreCatalin Marinas6-17/+15
* for-next/asm-cleanups: : Various asm clean-ups (alignment, mov_q vs ldr, .idmap) arm64: move kimage_vaddr to .rodata arm64: use mov_q instead of literal ldr
2020-03-25Merge branch 'for-next/asm-annotations' into for-next/coreCatalin Marinas17-207/+212
* for-next/asm-annotations: : Modernise arm64 assembly annotations arm64: head: Convert install_el2_stub to SYM_INNER_LABEL arm64: Mark call_smc_arch_workaround_1 as __maybe_unused arm64: entry-ftrace.S: Fix missing argument for CONFIG_FUNCTION_GRAPH_TRACER=y arm64: vdso32: Convert to modern assembler annotations arm64: vdso: Convert to modern assembler annotations arm64: sdei: Annotate SDEI entry points using new style annotations arm64: kvm: Modernize __smccc_workaround_1_smc_start annotations arm64: kvm: Modernize annotation for __bp_harden_hyp_vecs arm64: kvm: Annotate assembly using modern annoations arm64: kernel: Convert to modern annotations for assembly data arm64: head: Annotate stext and preserve_boot_args as code arm64: head.S: Convert to modern annotations for assembly functions arm64: ftrace: Modernise annotation of return_to_handler arm64: ftrace: Correct annotation of ftrace_caller assembly arm64: entry-ftrace.S: Convert to modern annotations for assembly functions arm64: entry: Additional annotation conversions for entry.S arm64: entry: Annotate ret_from_fork as code arm64: entry: Annotate vector table and handlers as code arm64: crypto: Modernize names for AES function macros arm64: crypto: Modernize some extra assembly annotations
2020-03-25Merge branches 'for-next/memory-hotremove', 'for-next/arm_sdei', 'for-next/amu', 'for-next/final-cap-helper', 'for-next/cpu_ops-cleanup', 'for-next/misc' and 'for-next/perf' into for-next/coreCatalin Marinas36-322/+925
* for-next/memory-hotremove: : Memory hot-remove support for arm64 arm64/mm: Enable memory hot remove arm64/mm: Hold memory hotplug lock while walking for kernel page table dump * for-next/arm_sdei: : SDEI: fix double locking on return from hibernate and clean-up firmware: arm_sdei: clean up sdei_event_create() firmware: arm_sdei: Use cpus_read_lock() to avoid races with cpuhp firmware: arm_sdei: fix possible double-lock on hibernate error path firmware: arm_sdei: fix double-lock on hibernate with shared events * for-next/amu: : ARMv8.4 Activity Monitors support clocksource/drivers/arm_arch_timer: validate arch_timer_rate arm64: use activity monitors for frequency invariance cpufreq: add function to get the hardware max frequency Documentation: arm64: document support for the AMU extension arm64/kvm: disable access to AMU registers from kvm guests arm64: trap to EL1 accesses to AMU counters from EL0 arm64: add support for the AMU extension v1 * for-next/final-cap-helper: : Introduce cpus_have_final_cap_helper(), migrate arm64 KVM to it arm64: kvm: hyp: use cpus_have_final_cap() arm64: cpufeature: add cpus_have_final_cap() * for-next/cpu_ops-cleanup: : cpu_ops[] access code clean-up arm64: Introduce get_cpu_ops() helper function arm64: Rename cpu_read_ops() to init_cpu_ops() arm64: Declare ACPI parking protocol CPU operation if needed * for-next/misc: : Various fixes and clean-ups arm64: define __alloc_zeroed_user_highpage arm64/kernel: Simplify __cpu_up() by bailing out early arm64: remove redundant blank for '=' operator arm64: kexec_file: Fixed code style. arm64: add blank after 'if' arm64: fix spelling mistake "ca not" -> "cannot" arm64: entry: unmask IRQ in el0_sp() arm64: efi: add efi-entry.o to targets instead of extra-$(CONFIG_EFI) arm64: csum: Optimise IPv6 header checksum arch/arm64: fix typo in a comment arm64: remove gratuitious/stray .ltorg stanzas arm64: Update comment for ASID() macro arm64: mm: convert cpu_do_switch_mm() to C arm64: fix NUMA Kconfig typos * for-next/perf: : arm64 perf updates arm64: perf: Add support for ARMv8.5-PMU 64-bit counters KVM: arm64: limit PMU version to PMUv3 for ARMv8.1 arm64: cpufeature: Extract capped perfmon fields arm64: perf: Clean up enable/disable calls perf: arm-ccn: Use scnprintf() for robustness arm64: perf: Support new DT compatibles arm64: perf: Refactor PMU init callbacks perf: arm_spe: Remove unnecessary zero check on 'nr_pages'
2020-03-25arm64: head: Convert install_el2_stub to SYM_INNER_LABELMark Brown1-1/+1
New assembly annotations have recently been introduced which aim to make the way we describe symbols in assembly more consistent. Recently the arm64 assembler was converted to use these but install_el2_stub was missed. Signed-off-by: Mark Brown <broonie@kernel.org> [catalin.marinas@arm.com: changed to SYM_L_LOCAL] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-03-25.gitignore: add SPDX License IdentifierMasahiro Yamada76-0/+76
Add SPDX License Identifier to all .gitignore files. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-25powerpc/prom_init: Remove leftover commentFabiano Rosas1-1/+0
The if statement that this comment referred to was removed in commit 11fdb309341c ("powerpc/prom_init: Remove support for OPAL v2"). Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200324182912.1048906-1-farosas@linux.ibm.com
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