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2019-12-25efi/libstub: Drop 'table' argument from efi_table_attr() macroArd Biesheuvel1-2/+1
None of the definitions of the efi_table_attr() still refer to their 'table' argument so let's get rid of it entirely. Signed-off-by: Ard Biesheuvel <[email protected]> Cc: Arvind Sankar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: James Morse <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-12-25efi/libstub: Drop protocol argument from efi_call_proto() macroArd Biesheuvel1-2/+1
After refactoring the mixed mode support code, efi_call_proto() no longer uses its protocol argument in any of its implementation, so let's remove it altogether. Signed-off-by: Ard Biesheuvel <[email protected]> Cc: Arvind Sankar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: James Morse <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-12-25efi/libstub: Remove 'sys_table_arg' from all function prototypesArd Biesheuvel1-2/+2
We have a helper efi_system_table() that gives us the address of the EFI system table in memory, so there is no longer point in passing it around from each function to the next. Signed-off-by: Ard Biesheuvel <[email protected]> Cc: Arvind Sankar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: James Morse <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-12-25efi/libstub: Get rid of 'sys_table_arg' macro parameterArd Biesheuvel1-4/+4
The efi_call macros on ARM have a dependency on a variable 'sys_table_arg' existing in the scope of the macro instantiation. Since this variable always points to the same data structure, let's create a global getter for it and use that instead. Note that the use of a global variable with external linkage is avoided, given the problems we had in the past with early processing of the GOT tables. While at it, drop the redundant casts in the efi_table_attr and efi_call_proto macros. Signed-off-by: Ard Biesheuvel <[email protected]> Cc: Arvind Sankar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: James Morse <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-12-25efi/libstub: Distinguish between native/mixed not 32/64 bitArd Biesheuvel1-1/+1
Currently, we support mixed mode by casting all boot time firmware calls to 64-bit explicitly on native 64-bit systems, and to 32-bit on 32-bit systems or 64-bit systems running with 32-bit firmware. Due to this explicit awareness of the bitness in the code, we do a lot of casting even on generic code that is shared with other architectures, where mixed mode does not even exist. This casting leads to loss of coverage of type checking by the compiler, which we should try to avoid. So instead of distinguishing between 32-bit vs 64-bit, distinguish between native vs mixed, and limit all the nasty casting and pointer mangling to the code that actually deals with mixed mode. Signed-off-by: Ard Biesheuvel <[email protected]> Cc: Arvind Sankar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: James Morse <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-12-25efi/libstub: Remove unused __efi_call_early() macroArd Biesheuvel1-1/+0
The macro __efi_call_early() is defined by various architectures but never used. Let's get rid of it. Signed-off-by: Ard Biesheuvel <[email protected]> Cc: Arvind Sankar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: James Morse <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-12-25Merge tag 'v5.5-rc3' into sched/core, to pick up fixesIngo Molnar3-1/+6
Signed-off-by: Ingo Molnar <[email protected]>
2019-12-10mm/vmalloc: Add empty <asm/vmalloc.h> headers and use them from ↵Ingo Molnar1-0/+4
<linux/vmalloc.h> In the x86 MM code we'd like to untangle various types of historic header dependency spaghetti, but for this we'd need to pass to the generic vmalloc code various vmalloc related defines that customarily come via the <asm/page.h> low level arch header. Signed-off-by: Ingo Molnar <[email protected]>
2019-12-08sched/rt, ARM: Use CONFIG_PREEMPTIONThomas Gleixner1-1/+1
CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT. Both PREEMPT and PREEMPT_RT require the same functionality which today depends on CONFIG_PREEMPT. Switch the entry code, cache over to use CONFIG_PREEMPTION and add output in show_stack() for PREEMPT_RT. [bigeasy: +traps.c] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Russell King <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2019-12-06Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds1-0/+3
Pull ARM fixes from Russell King: - fix CPU topology setup for SCHED_MC case - fix VDSO regression * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8947/1: Fix __arch_get_hw_counter() access to CNTVCT ARM: 8943/1: Fix topology setup in case of CPU hotplug for CONFIG_SCHED_MC
2019-12-06ARM: 8947/1: Fix __arch_get_hw_counter() access to CNTVCTVincenzo Frascino1-0/+3
__arch_get_hw_counter() should check clock_mode to see if it can access CNTVCT. With the conversion to unified vDSO this check has been left out. This causes on imx v6 and v7 (imx_v6_v7_defconfig) and other platforms to hang at boot during the execution of the init process as per below: [ 19.976852] Run /sbin/init as init process [ 20.044931] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004 Fix the problem verifying that clock_mode is set coherently before accessing CNTVCT. Investigated-by: Arnd Bergmann <[email protected]> Reported-by: Guenter Roeck <[email protected]> Tested-by: Guenter Roeck <[email protected]> Reviewed-by: Philippe Mathieu-Daudé <[email protected]> Signed-off-by: Vincenzo Frascino <[email protected]> Signed-off-by: Russell King <[email protected]>
2019-12-05Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds1-0/+2
Pull ARM SoC platform updates from Olof Johansson: "Most of these are for MMP (seeing a bunch of cleanups and refactorings for the first time in a while), and for OMAP (a bunch of cleanups and added support for voltage controller on OMAP4430)" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (51 commits) ARM: OMAP2+: Add missing put_device() call in omapdss_init_of() OMAP2: fixup doc comments in omap_device ARM: OMAP1: drop duplicated dependency on ARCH_OMAP1 ARM: ASPEED: update default ARCH_NR_GPIO for ARCH_ASPEED ARM: imx: use generic function to exit coherency ARM: tegra: Use WFE for power-gating on Tegra30 ARM: tegra: Fix FLOW_CTLR_HALT register clobbering by tegra_resume() ARM: exynos: Enable exynos-asv driver for ARCH_EXYNOS ARM: s3c: Rename s5p_usb_phy functions ARM: s3c: Rename s3c64xx_spi_setname() function ARM: imx: Add serial number support for i.MX6/7 SoCs ARM: imx: Drop imx_anatop_usb_chrg_detect_disable() arm64: Introduce config for S32 ARM: hisi: drop useless depend on ARCH_MULTI_V7 arm64: realtek: Select reset controller ARM: shmobile: rcar-gen2: Drop legacy DT clock support ARM: OMAP2+: Remove duplicated include from pmic-cpcap.c ARM: OMAP1: ams-delta FIQ: Fix a typo ("Initiaize") MAINTAINERS: Add logicpd-som-lv and logicpd-torpedo to OMAP TREE ARM: OMAP2+: pdata-quirks: drop TI_ST/KIM support ...
2019-12-04arm: nommu: use pgtable-nopud instead of 4level-fixupMike Rapoport1-1/+1
The generic nommu implementation of page table manipulation takes care of folding of the upper levels and does not require fixups. Simply replace of include/asm-generic/4level-fixup.h with include/asm-generic/pgtable-nopud.h. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Mike Rapoport <[email protected]> Acked-by: Russell King <[email protected]> Cc: Anatoly Pugachev <[email protected]> Cc: Anton Ivanov <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Greentime Hu <[email protected]> Cc: Greg Ungerer <[email protected]> Cc: Helge Deller <[email protected]> Cc: "James E.J. Bottomley" <[email protected]> Cc: Jeff Dike <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Mark Salter <[email protected]> Cc: Matt Turner <[email protected]> Cc: Michal Simek <[email protected]> Cc: Peter Rosin <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Rolf Eike Beer <[email protected]> Cc: Russell King <[email protected]> Cc: Sam Creasey <[email protected]> Cc: Vincent Chen <[email protected]> Cc: Vineet Gupta <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2019-12-03Merge tag 'pci-v5.5-changes' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Enumeration: - Warn if a host bridge has no NUMA info (Yunsheng Lin) - Add PCI_STD_NUM_BARS for the number of standard BARs (Denis Efremov) Resource management: - Fix boot-time Embedded Controller GPE storm caused by incorrect resource assignment after ACPI Bus Check Notification (Mika Westerberg) - Protect pci_reassign_bridge_resources() against concurrent addition/removal (Benjamin Herrenschmidt) - Fix bridge dma_ranges resource list cleanup (Rob Herring) - Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control the MMIO and prefetchable MMIO window sizes of hotplug bridges independently (Nicholas Johnson) - Fix MMIO/MMIO_PREF window assignment that assigned more space than desired (Nicholas Johnson) - Only enforce bus numbers from bridge EA if the bridge has EA devices downstream (Subbaraya Sundeep) - Consolidate DT "dma-ranges" parsing and convert all host drivers to use shared parsing (Rob Herring) Error reporting: - Restore AER capability after resume (Mayurkumar Patel) - Add PoisonTLPBlocked AER counter (Rajat Jain) - Use for_each_set_bit() to simplify AER code (Andy Shevchenko) - Fix AER kernel-doc (Andy Shevchenko) - Add "pcie_ports=dpc-native" parameter to allow native use of DPC even if platform didn't grant control over AER (Olof Johansson) Hotplug: - Avoid returning prematurely from sysfs requests to enable or disable a PCIe hotplug slot (Lukas Wunner) - Don't disable interrupts twice when suspending hotplug ports (Mika Westerberg) - Fix deadlocks when PCIe ports are hot-removed while suspended (Mika Westerberg) Power management: - Remove unnecessary ASPM locking (Bjorn Helgaas) - Add support for disabling L1 PM Substates (Heiner Kallweit) - Allow re-enabling Clock PM after it has been disabled (Heiner Kallweit) - Add sysfs attributes for controlling ASPM link states (Heiner Kallweit) - Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl" sysfs files (Heiner Kallweit) - Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on USB 2.0 or 1.1 connect events (Kai-Heng Feng) - Move power state check out of pci_msi_supported() (Bjorn Helgaas) - Fix incorrect MSI-X masking on resume and revert related nvme quirk for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan) - Always return devices to D0 when thawing to fix hibernation with drivers like mlx4 that used legacy power management (previously we only did it for drivers with new power management ops) (Dexuan Cui) - Clear PCIe PME Status even for legacy power management (Bjorn Helgaas) - Fix PCI PM documentation errors (Bjorn Helgaas) - Use dev_printk() for more power management messages (Bjorn Helgaas) - Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas) - Convert xen-platform from legacy to generic power management (Bjorn Helgaas) - Removed unused .resume_early() and .suspend_late() legacy power management hooks (Bjorn Helgaas) - Rearrange power management code for clarity (Rafael J. Wysocki) - Decode power states more clearly ("4" or "D4" really refers to "D3cold") (Bjorn Helgaas) - Notice when reading PM Control register returns an error (~0) instead of interpreting it as being in D3hot (Bjorn Helgaas) - Add missing link delays required by the PCIe spec (Mika Westerberg) Virtualization: - Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn Helgaas) - Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Allow VFs to use PASID (the PF PASID capability is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Disconnect PF and VF ATS enablement, since ATS in PFs and associated VFs can be enabled independently (Kuppuswamy Sathyanarayanan) - Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan) - Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas) - Consolidate ATS declarations in linux/pci-ats.h (Krzysztof Wilczynski) - Remove unused PRI and PASID stubs (Bjorn Helgaas) - Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID interfaces that are only used by built-in IOMMU drivers (Bjorn Helgaas) - Hide PRI and PASID state restoration functions used only inside the PCI core (Bjorn Helgaas) - Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski) - Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut) - Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George Cherian) - Fix the UPDCR register address in the Intel ACS quirk (Steffen Liebergeld) - Unify ACS quirk implementations (Bjorn Helgaas) Amlogic Meson host bridge driver: - Fix meson PERST# GPIO polarity problem (Remi Pommarel) - Add DT bindings for Amlogic Meson G12A (Neil Armstrong) - Fix meson clock names to match DT bindings (Neil Armstrong) - Add meson support for Amlogic G12A SoC with separate shared PHY (Neil Armstrong) - Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe combo PHY (Neil Armstrong) - Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong) - Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT (Neil Armstrong) Broadcom iProc host bridge driver: - Invalidate iProc PAXB address mapping before programming it (Abhishek Shah) - Fix iproc-msi and mvebu __iomem annotations (Ben Dooks) Cadence host bridge driver: - Refactor Cadence PCIe host controller to use as a library for both host and endpoint (Tom Joseph) Freescale Layerscape host bridge driver: - Add layerscape LS1028a support (Xiaowei Bao) Intel VMD host bridge driver: - Add VMD bus 224-255 restriction decode (Jon Derrick) - Add VMD 8086:9A0B device ID (Jon Derrick) - Remove Keith from VMD maintainer list (Keith Busch) Marvell ARMADA 3700 / Aardvark host bridge driver: - Use LTSSM state to build link training flag since Aardvark doesn't implement the Link Training bit (Remi Pommarel) - Delay before training Aardvark link in case PERST# was asserted before the driver probe (Remi Pommarel) - Fix Aardvark issues with Root Control reads and writes (Remi Pommarel) - Don't rely on jiffies in Aardvark config access path since interrupts may be disabled (Remi Pommarel) - Fix Aardvark big-endian support (Grzegorz Jaszczyk) Marvell ARMADA 370 / XP host bridge driver: - Make mvebu_pci_bridge_emul_ops static (Ben Dooks) Microsoft Hyper-V host bridge driver: - Add hibernation support for Hyper-V virtual PCI devices (Dexuan Cui) - Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan Cui) - Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui) Mobiveil host bridge driver: - Change mobiveil csr_read()/write() function names that conflict with riscv arch functions (Kefeng Wang) NVIDIA Tegra host bridge driver: - Fix Tegra CLKREQ dependency programming (Vidya Sagar) Renesas R-Car host bridge driver: - Remove unnecessary header include from rcar (Andrew Murray) - Tighten register index checking for rcar inbound range programming (Marek Vasut) - Fix rcar inbound range alignment calculation to improve packing of multiple entries (Marek Vasut) - Update rcar MACCTLR setting to match documentation (Yoshihiro Shimoda) - Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual (Yoshihiro Shimoda) - Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon Horman) Rockchip host bridge driver: - Make rockchip 0V9 and 1V8 power regulators non-optional (Robin Murphy) Socionext UniPhier host bridge driver: - Set uniphier to host (RC) mode always (Kunihiko Hayashi) Endpoint drivers: - Fix endpoint driver sign extension problem when shifting page number to phys_addr_t (Alan Mikhak) Misc: - Add NumaChip SPDX header (Krzysztof Wilczynski) - Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski) - Remove unused includes (Krzysztof Wilczynski) - Removed unused sysfs attribute groups (Ben Dooks) - Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas) - Add PCIe Link Control 2 register field definitions to replace magic numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas) - Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas) - Use pcie_capability_read_word() instead of pci_read_config_word() in AMDGPU and Radeon CIK/SI (Frederick Lawler) - Remove unused pci_irq_get_node() Greg Kroah-Hartman) - Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig (Palmer Dabbelt, Michal Simek) - Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe) - Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn Helgaas) - Fix bridge emulation big-endian support (Grzegorz Jaszczyk) - Fix dwc find_next_bit() usage (Niklas Cassel) - Fix pcitest.c fd leak (Hewenliang) - Fix typos and comments (Bjorn Helgaas) - Fix Kconfig whitespace errors (Krzysztof Kozlowski)" * tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits) PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist asm-generic: Make msi.h a mandatory include/asm header Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T" PCI/MSI: Fix incorrect MSI-X masking on resume PCI/MSI: Move power state check out of pci_msi_supported() PCI/MSI: Remove unused pci_irq_get_node() PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer PCI: hv: Change pci_protocol_version to per-hbus PCI: hv: Add hibernation support PCI: hv: Reorganize the code in preparation of hibernation MAINTAINERS: Remove Keith from VMD maintainer PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code PCI/ASPM: Add sysfs attributes for controlling ASPM link states PCI: Fix indentation drm/radeon: Prefer pcie_capability_read_word() drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions drm/radeon: Correct Transmit Margin masks drm/amdgpu: Prefer pcie_capability_read_word() PCI: uniphier: Set mode register to host mode drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions ...
2019-12-03Merge branch 'irq-core-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Ingo Molnar: "Most of the IRQ subsystem changes in this cycle were irq-chip driver updates: - Qualcomm PDC wakeup interrupt support - Layerscape external IRQ support - Broadcom bcm7038 PM and wakeup support - Ingenic driver cleanup and modernization - GICv3 ITS preparation for GICv4.1 updates - GICv4 fixes There's also the series from Frederic Weisbecker that fixes memory ordering bugs for the irq-work logic, whose primary fix is to turn work->irq_work.flags into an atomic variable and then convert the complex (and buggy) atomic_cmpxchg() loop in irq_work_claim() into a much simpler atomic_fetch_or() call. There are also various smaller cleanups" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits) pinctrl/sdm845: Add PDC wakeup interrupt map for GPIOs pinctrl/msm: Setup GPIO chip in hierarchy irqchip/qcom-pdc: Add irqchip set/get state calls irqchip/qcom-pdc: Add irqdomain for wakeup capable GPIOs irqchip/qcom-pdc: Do not toggle IRQ_ENABLE during mask/unmask irqchip/qcom-pdc: Update max PDC interrupts of/irq: Document properties for wakeup interrupt parent genirq: Introduce irq_chip_get/set_parent_state calls irqdomain: Add bus token DOMAIN_BUS_WAKEUP genirq: Fix function documentation of __irq_alloc_descs() irq_work: Fix IRQ_WORK_BUSY bit clearing irqchip/ti-sci-inta: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...)) irq_work: Slightly simplify IRQ_WORK_PENDING clearing irq_work: Fix irq_work_claim() memory ordering irq_work: Convert flags to atomic_t irqchip: Ingenic: Add process for more than one irq at the same time. irqchip: ingenic: Alloc generic chips from IRQ domain irqchip: ingenic: Get virq number from IRQ domain irqchip: ingenic: Error out if IRQ domain creation failed irqchip: ingenic: Drop redundant irq_suspend / irq_resume functions ...
2019-11-30Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds6-30/+173
Pull ARM updates from Russell King: - improve ARM implementation of pfn_valid() - various sparse fixes - spelling fixes - add further ARMv8 debug architecture versions - clang fix for decompressor - update to generic vDSO - remove Brahma-B53 from spectre hardening - initialise broadcast hrtimer device - use correct nm executable in decompressor - remove old mcount et.al. * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (26 commits) ARM: 8940/1: ftrace: remove mcount(),ftrace_caller_old() and ftrace_call_old() ARM: 8939/1: kbuild: use correct nm executable ARM: 8938/1: kernel: initialize broadcast hrtimer based clock event device ARM: 8937/1: spectre-v2: remove Brahma-B53 from hardening ARM: 8933/1: replace Sun/Solaris style flag on section directive ARM: 8932/1: Add clock_gettime64 entry point ARM: 8931/1: Add clock_getres entry point ARM: 8930/1: Add support for generic vDSO ARM: 8929/1: use APSR_nzcv instead of r15 as mrc operand ARM: 8927/1: ARM/hw_breakpoint: add more ARMv8 debug architecture versions support ARM: 8918/2: only build return_address() if needed ARM: 8928/1: ARM_ERRATA_775420: Spelling s/date/data/ ARM: 8925/1: tcm: include <asm/tcm.h> for missing declarations ARM: 8924/1: tcm: make dtcm_end and itcm_end static ARM: 8923/1: mm: include <asm/vga.h> for vga_base ARM: 8922/1: parse_dt_topology() rate is pointer to __be32 ARM: 8920/1: share get_signal_page from signal.c to process.c ARM: 8919/1: make unexported functions static ARM: 8917/1: mm: include <asm/set_memory.h> ARM: 8916/1: mm: make set_section_perms() static ...
2019-11-28Merge branch 'master' of ↵Linus Torvalds1-19/+0
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux; tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping updates from Christoph Hellwig: - improve dma-debug scalability (Eric Dumazet) - tiny dma-debug cleanup (Dan Carpenter) - check for vmap memory in dma_map_single (Kees Cook) - check for dma_addr_t overflows in dma-direct when using DMA offsets (Nicolas Saenz Julienne) - switch the x86 sta2x11 SOC to use more generic DMA code (Nicolas Saenz Julienne) - fix arm-nommu dma-ranges handling (Vladimir Murzin) - use __initdata in CMA (Shyam Saini) - replace the bus dma mask with a limit (Nicolas Saenz Julienne) - merge the remapping helpers into the main dma-direct flow (me) - switch xtensa to the generic dma remap handling (me) - various cleanups around dma_capable (me) - remove unused dev arguments to various dma-noncoherent helpers (me) * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux: * tag 'dma-mapping-5.5' of git://git.infradead.org/users/hch/dma-mapping: (22 commits) dma-mapping: treat dev->bus_dma_mask as a DMA limit dma-direct: exclude dma_direct_map_resource from the min_low_pfn check dma-direct: don't check swiotlb=force in dma_direct_map_resource dma-debug: clean up put_hash_bucket() powerpc: remove support for NULL dev in __phys_to_dma / __dma_to_phys dma-direct: avoid a forward declaration for phys_to_dma dma-direct: unify the dma_capable definitions dma-mapping: drop the dev argument to arch_sync_dma_for_* x86/PCI: sta2x11: use default DMA address translation dma-direct: check for overflows on 32 bit DMA addresses dma-debug: increase HASH_SIZE dma-debug: reorder struct dma_debug_entry fields xtensa: use the generic uncached segment support dma-mapping: merge the generic remapping helpers into dma-direct dma-direct: provide mmap and get_sgtable method overrides dma-direct: remove the dma_handle argument to __dma_direct_alloc_pages dma-direct: remove __dma_direct_free_pages usb: core: Remove redundant vmap checks kernel: dma-contiguous: mark CMA parameters __initdata/__initconst dma-debug: add a schedule point in debug_dma_dump_mappings() ...
2019-11-28Merge tag 'ioremap-5.5' of git://git.infradead.org/users/hch/ioremapLinus Torvalds1-7/+0
Pull generic ioremap support from Christoph Hellwig: "This adds the remaining bits for an entirely generic ioremap and iounmap to lib/ioremap.c. To facilitate that, it cleans up the giant mess of weird ioremap variants we had with no users outside the arch code. For now just the three newest ports use the code, but there is more than a handful others that can be converted without too much work. Summary: - clean up various obsolete ioremap and iounmap variants - add a new generic ioremap implementation and switch csky, nds32 and riscv over to it" * tag 'ioremap-5.5' of git://git.infradead.org/users/hch/ioremap: (21 commits) nds32: use generic ioremap csky: use generic ioremap csky: remove ioremap_cache riscv: use the generic ioremap code lib: provide a simple generic ioremap implementation sh: remove __iounmap nios2: remove __iounmap hexagon: remove __iounmap m68k: rename __iounmap and mark it static arch: rely on asm-generic/io.h for default ioremap_* definitions asm-generic: don't provide ioremap for CONFIG_MMU asm-generic: ioremap_uc should behave the same with and without MMU xtensa: clean up ioremap x86: Clean up ioremap() parisc: remove __ioremap nios2: remove __ioremap alpha: remove the unused __ioremap wrapper hexagon: clean up ioremap ia64: rename ioremap_nocache to ioremap_uc unicore32: remove ioremap_cached ...
2019-11-26asm-generic: Make msi.h a mandatory include/asm headerMichal Simek1-1/+0
msi.h is generic for all architectures except x86, which has its own version. Enabling MSI by adding msi.h to every architecture's Kbuild is just an additional step which doesn't need to be done. Make msi.h mandatory in the asm-generic/Kbuild so we don't have to do it for each architecture. Suggested-by: Christoph Hellwig <[email protected]> Link: https://lore.kernel.org/r/c991669e29a79b1a8e28c3b4b3a125801a693de8.1571983829.git.michal.simek@xilinx.com Tested-by: Paul Walmsley <[email protected]> # build only, rv32/rv64 Signed-off-by: Michal Simek <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Masahiro Yamada <[email protected]> Acked-by: Waiman Long <[email protected]> Acked-by: Paul Walmsley <[email protected]> # arch/riscv
2019-11-22ARM: 8940/1: ftrace: remove mcount(),ftrace_caller_old() and ftrace_call_old()Jisheng Zhang (syna)1-4/+0
Commit d3c61619568c ("ARM: 8788/1: ftrace: remove old mcount support") removed the old mcount support, but forget to remove these three declarations. This patch removes them. Signed-off-by: Jisheng Zhang <[email protected]> Acked-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Russell King <[email protected]>
2019-11-21Merge branch 'kvm-tsx-ctrl' into HEADPaolo Bonzini2-6/+6
Conflicts: arch/x86/kvm/vmx/vmx.c
2019-11-20dma-direct: unify the dma_capable definitionsChristoph Hellwig1-19/+0
Currently each architectures that wants to override dma_to_phys and phys_to_dma also has to provide dma_capable. But there isn't really any good reason for that. powerpc and mips just have copies of the generic one minus the latests fix, and the arm one was the inspiration for said fix, but misses the bus_dma_mask handling. Make all architectures use the generic version instead. Signed-off-by: Christoph Hellwig <[email protected]> Acked-by: Michael Ellerman <[email protected]> (powerpc) Reviewed-by: Nicolas Saenz Julienne <[email protected]>
2019-11-15ARM: 8931/1: Add clock_getres entry pointVincenzo Frascino1-0/+20
The generic vDSO library provides an implementation of clock_getres() that can be leveraged by each architecture. Add clock_getres() entry point on arm to be on pair with arm64. Signed-off-by: Vincenzo Frascino <[email protected]> Signed-off-by: Russell King <[email protected]>
2019-11-15ARM: 8930/1: Add support for generic vDSOVincenzo Frascino3-26/+148
The arm vDSO library requires some adaptations to take advantage of the newly introduced generic vDSO library. Introduce the following changes: - Modification vdso.c to be compliant with the common vdso datapage - Use of lib/vdso for gettimeofday - Implementation of elf note Signed-off-by: Vincenzo Frascino <[email protected]> Signed-off-by: Russell King <[email protected]>
2019-11-15ARM: 8927/1: ARM/hw_breakpoint: add more ARMv8 debug architecture versions ↵Candle Sun1-0/+3
support When ARMv8 cores are used in AArch32 mode, arch_hw_breakpoint_init() in arch/arm/kernel/hw_breakpoint.c will be used. From ARMv8 specification, v8 debug architecture versions defined: * 0110 ARMv8, v8 Debug architecture. * 0111 ARMv8.1, v8 Debug architecture, with Virtualization Host Extensions. * 1000 ARMv8.2, v8.2 Debug architecture. * 1001 ARMv8.4, v8.4 Debug architecture. So missing ARMv8.1/ARMv8.2/ARMv8.4 cases will cause enable_monitor_mode() returns -ENODEV,and eventually arch_hw_breakpoint_init() will fail. Signed-off-by: Candle Sun <[email protected]> Signed-off-by: Nianfu Bai <[email protected]> Signed-off-by: Russell King <[email protected]>
2019-11-11arch: rely on asm-generic/io.h for default ioremap_* definitionsChristoph Hellwig1-1/+0
Various architectures that use asm-generic/io.h still defined their own default versions of ioremap_nocache, ioremap_wt and ioremap_wc that point back to plain ioremap directly or indirectly. Remove these definitions and rely on asm-generic/io.h instead. For this to work the backup ioremap_* defintions needs to be changed to purely cpp macros instea of inlines to cover for architectures like openrisc that only define ioremap after including <asm-generic/io.h>. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]> Reviewed-by: Palmer Dabbelt <[email protected]>
2019-11-11arm: remove ioremap_cachedChristoph Hellwig1-6/+0
No users of ioremap_cached are left, remove it. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]>
2019-11-10irqchip/gic-v3: Fix __iomem warningBen Dooks (Codethink)1-1/+1
The __iomem attribute should go before the * in the prototype. Move to silence the following sparse warnings: ./arch/arm/include/asm/arch_gicv3.h:340:15: warning: incorrect type in argument 1 (different address spaces) ./arch/arm/include/asm/arch_gicv3.h:340:15: expected void const volatile [noderef] <asn:2> *addr ./arch/arm/include/asm/arch_gicv3.h:340:15: got void * ./arch/arm/include/asm/arch_gicv3.h:343:17: warning: incorrect type in argument 2 (different address spaces) ./arch/arm/include/asm/arch_gicv3.h:343:17: expected void volatile [noderef] <asn:2> *addr ./arch/arm/include/asm/arch_gicv3.h:343:17: got void * ./arch/arm/include/asm/arch_gicv3.h:350:37: warning: incorrect type in argument 2 (different address spaces) ./arch/arm/include/asm/arch_gicv3.h:350:37: expected void volatile [noderef] <asn:2> *addr ./arch/arm/include/asm/arch_gicv3.h:350:37: got void *[noderef] <asn:2> addr drivers/irqchip/irq-gic-v3-its.c:2832:46: warning: incorrect type in argument 2 (different address spaces) drivers/irqchip/irq-gic-v3-its.c:2832:46: expected void *[noderef] <asn:2> addr drivers/irqchip/irq-gic-v3-its.c:2832:46: got void [noderef] <asn:2> * ./arch/arm/include/asm/arch_gicv3.h:340:15: warning: incorrect type in argument 1 (different address spaces) ./arch/arm/include/asm/arch_gicv3.h:340:15: expected void const volatile [noderef] <asn:2> *addr ./arch/arm/include/asm/arch_gicv3.h:340:15: got void * ./arch/arm/include/asm/arch_gicv3.h:343:17: warning: incorrect type in argument 2 (different address spaces) ./arch/arm/include/asm/arch_gicv3.h:343:17: expected void volatile [noderef] <asn:2> *addr ./arch/arm/include/asm/arch_gicv3.h:343:17: got void * ./arch/arm/include/asm/arch_gicv3.h:350:37: warning: incorrect type in argument 2 (different address spaces) ./arch/arm/include/asm/arch_gicv3.h:350:37: expected void volatile [noderef] <asn:2> *addr ./arch/arm/include/asm/arch_gicv3.h:350:37: got void *[noderef] <asn:2> addr Signed-off-by: Ben Dooks <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2019-11-08Merge remote-tracking branch 'kvmarm/misc-5.5' into kvmarm/nextMarc Zyngier1-2/+2
2019-11-08KVM: arm64: Opportunistically turn off WFI trapping when using direct LPI ↵Marc Zyngier1-2/+2
injection Just like we do for WFE trapping, it can be useful to turn off WFI trapping when the physical CPU is not oversubscribed (that is, the vcpu is the only runnable process on this CPU) *and* that we're using direct injection of interrupts. The conditions are reevaluated on each vcpu_load(), ensuring that we don't switch to this mode on a busy system. On a GICv4 system, this has the effect of reducing the generation of doorbell interrupts to zero when the right conditions are met, which is a huge improvement over the current situation (where the doorbells are screaming if the CPU ever hits a blocking WFI). Signed-off-by: Marc Zyngier <[email protected]> Reviewed-by: Zenghui Yu <[email protected]> Reviewed-by: Christoffer Dall <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2019-10-27ARM: 8911/1: move pcibios_report_status to <asm/pci.h>Ben Dooks1-0/+2
Move the pcibios_report_status to <asm/pci.h> include to remove the following sparse warning and to remove the extra definition in the footbrdige dc21285.c driver: arch/arm/kernel/bios32.c:59:6: warning: symbol 'pcibios_report_status' was not declared. Should it be static? Signed-off-by: Ben Dooks <[email protected]> Signed-off-by: Russell King <[email protected]>
2019-10-24Merge remote-tracking branch 'kvmarm/kvm-arm64/stolen-time' into ↵Marc Zyngier1-0/+25
kvmarm-master/next
2019-10-23Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds2-6/+6
:Pull ARM fixes from Russell King: - fix for alignment faults under high memory pressure - use u32 for ARM instructions in fault handler - mark functions that must always be inlined with __always_inline - fix for nommu XIP - fix ARMv7M switch to handler mode in reboot path - fix the recently introduced AMBA reset control error paths * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8926/1: v7m: remove register save to stack before svc ARM: 8914/1: NOMMU: Fix exc_ret for XIP ARM: 8908/1: add __always_inline to functions called from __get_user_check() ARM: mm: alignment: use "u32" for 32-bit instructions ARM: mm: fix alignment handler faults under memory pressure drivers/amba: fix reset control error handling
2019-10-22Merge branch 'misc' into fixesRussell King1-0/+103
2019-10-21Merge tag 'mmp-soc-for-v5.5-2' of ↵Olof Johansson1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/lkundrak/linux-mmp into arm/soc ARM: Marvell MMP SoC patches for v5.5 This tag includes initial support for the Marvell MMP3 processor. MMP3 is used in OLPC XO-4 laptops, Panasonic Toughpad FZ-A1 tablet and Dell Wyse 3020/Tx0D thin clients. * tag 'mmp-soc-for-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/lkundrak/linux-mmp: MAINTAINERS: mmp: add Git repository ARM: mmp: remove MMP3 USB PHY registers from regs-usb.h ARM: mmp: move cputype.h to include/linux/soc/ ARM: mmp: add SMP support ARM: mmp: add support for MMP3 SoC ARM: mmp: define MMP_CHIPID by the means of CIU_REG() ARM: mmp: DT: convert timer driver to use TIMER_OF_DECLARE ARM: mmp: map the PGU as well ARM: mmp: don't select CACHE_TAUROS2 on all ARCH_MMP ARM: l2c: add definition for FWA in PL310 aux register Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Olof Johansson <[email protected]>
2019-10-21KVM: arm64: Support stolen time reporting via shared structureSteven Price1-0/+19
Implement the service call for configuring a shared structure between a VCPU and the hypervisor in which the hypervisor can write the time stolen from the VCPU's execution time by other tasks on the host. User space allocates memory which is placed at an IPA also chosen by user space. The hypervisor then updates the shared structure using kvm_put_guest() to ensure single copy atomicity of the 64-bit value reporting the stolen time in nanoseconds. Whenever stolen time is enabled by the guest, the stolen time counter is reset. The stolen time itself is retrieved from the sched_info structure maintained by the Linux scheduler code. We enable SCHEDSTATS when selecting KVM Kconfig to ensure this value is meaningful. Signed-off-by: Steven Price <[email protected]> Signed-off-by: Marc Zyngier <[email protected]>
2019-10-21KVM: arm64: Implement PV_TIME_FEATURES callSteven Price1-0/+6
This provides a mechanism for querying which paravirtualized time features are available in this hypervisor. Also add the header file which defines the ABI for the paravirtualized time features we're about to add. Signed-off-by: Steven Price <[email protected]> Signed-off-by: Marc Zyngier <[email protected]>
2019-10-21KVM: arm/arm64: Allow reporting non-ISV data aborts to userspaceChristoffer Dall3-0/+14
For a long time, if a guest accessed memory outside of a memslot using any of the load/store instructions in the architecture which doesn't supply decoding information in the ESR_EL2 (the ISV bit is not set), the kernel would print the following message and terminate the VM as a result of returning -ENOSYS to userspace: load/store instruction decoding not implemented The reason behind this message is that KVM assumes that all accesses outside a memslot is an MMIO access which should be handled by userspace, and we originally expected to eventually implement some sort of decoding of load/store instructions where the ISV bit was not set. However, it turns out that many of the instructions which don't provide decoding information on abort are not safe to use for MMIO accesses, and the remaining few that would potentially make sense to use on MMIO accesses, such as those with register writeback, are not used in practice. It also turns out that fetching an instruction from guest memory can be a pretty horrible affair, involving stopping all CPUs on SMP systems, handling multiple corner cases of address translation in software, and more. It doesn't appear likely that we'll ever implement this in the kernel. What is much more common is that a user has misconfigured his/her guest and is actually not accessing an MMIO region, but just hitting some random hole in the IPA space. In this scenario, the error message above is almost misleading and has led to a great deal of confusion over the years. It is, nevertheless, ABI to userspace, and we therefore need to introduce a new capability that userspace explicitly enables to change behavior. This patch introduces KVM_CAP_ARM_NISV_TO_USER (NISV meaning Non-ISV) which does exactly that, and introduces a new exit reason to report the event to userspace. User space can then emulate an exception to the guest, restart the guest, suspend the guest, or take any other appropriate action as per the policy of the running system. Reported-by: Heinrich Schuchardt <[email protected]> Signed-off-by: Christoffer Dall <[email protected]> Reviewed-by: Alexander Graf <[email protected]> Signed-off-by: Marc Zyngier <[email protected]>
2019-10-17ARM: l2c: add definition for FWA in PL310 aux registerLubomir Rintel1-0/+2
The PL310 also has a "Force write allocate" bits in the Auxiliary Control Register. Signed-off-by: Lubomir Rintel <[email protected]>
2019-10-10ARM: 8908/1: add __always_inline to functions called from __get_user_check()Masahiro Yamada2-6/+6
KernelCI reports that bcm2835_defconfig is no longer booting since commit ac7c3e4ff401 ("compiler: enable CONFIG_OPTIMIZE_INLINING forcibly") (https://lkml.org/lkml/2019/9/26/825). I also received a regression report from Nicolas Saenz Julienne (https://lkml.org/lkml/2019/9/27/263). This problem has cropped up on bcm2835_defconfig because it enables CONFIG_CC_OPTIMIZE_FOR_SIZE. The compiler tends to prefer not inlining functions with -Os. I was able to reproduce it with other boards and defconfig files by manually enabling CONFIG_CC_OPTIMIZE_FOR_SIZE. The __get_user_check() specifically uses r0, r1, r2 registers. So, uaccess_save_and_enable() and uaccess_restore() must be inlined. Otherwise, those register assignments would be entirely dropped, according to my analysis of the disassembly. Prior to commit 9012d011660e ("compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING"), the 'inline' marker was always enough for inlining functions, except on x86. Since that commit, all architectures can enable CONFIG_OPTIMIZE_INLINING. So, __always_inline is now the only guaranteed way of forcible inlining. I added __always_inline to 4 functions in the call-graph from the __get_user_check() macro. Fixes: 9012d011660e ("compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING") Reported-by: "kernelci.org bot" <[email protected]> Reported-by: Nicolas Saenz Julienne <[email protected]> Signed-off-by: Masahiro Yamada <[email protected]> Tested-by: Nicolas Saenz Julienne <[email protected]> Signed-off-by: Russell King <[email protected]>
2019-10-04Merge tag 'for-linus-5.4-rc2-tag' of ↵Linus Torvalds1-6/+0
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes and cleanups from Juergen Gross: - a fix in the Xen balloon driver avoiding hitting a BUG_ON() in some cases, plus a follow-on cleanup series for that driver - a patch for introducing non-blocking EFI callbacks in Xen's EFI driver, plu a cleanup patch for Xen EFI handling merging the x86 and ARM arch specific initialization into the Xen EFI driver - a fix of the Xen xenbus driver avoiding a self-deadlock when cleaning up after a user process has died - a fix for Xen on ARM after removal of ZONE_DMA - a cleanup patch for avoiding build warnings for Xen on ARM * tag 'for-linus-5.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/xenbus: fix self-deadlock after killing user process xen/efi: have a common runtime setup function arm: xen: mm: use __GPF_DMA32 for arm64 xen/balloon: Clear PG_offline in balloon_retrieve() xen/balloon: Mark pages PG_offline in balloon_append() xen/balloon: Drop __balloon_append() xen/balloon: Set pages PageOffline() in balloon_add_region() ARM: xen: unexport HYPERVISOR_platform_op function xen/efi: Set nonblocking callbacks
2019-10-02xen/efi: have a common runtime setup functionJuergen Gross1-6/+0
Today the EFI runtime functions are setup in architecture specific code (x86 and arm), with the functions themselves living in drivers/xen as they are not architecture dependent. As the setup is exactly the same for arm and x86 move the setup to drivers/xen, too. This at once removes the need to make the single functions global visible. Signed-off-by: Juergen Gross <[email protected]> Reviewed-by: Jan Beulich <[email protected]> [boris: "Dropped EXPORT_SYMBOL_GPL(xen_efi_runtime_setup)"] Signed-off-by: Boris Ostrovsky <[email protected]>
2019-09-26mm: treewide: clarify pgtable_page_{ctor,dtor}() namingMark Rutland1-1/+1
The naming of pgtable_page_{ctor,dtor}() seems to have confused a few people, and until recently arm64 used these erroneously/pointlessly for other levels of page table. To make it incredibly clear that these only apply to the PTE level, and to align with the naming of pgtable_pmd_page_{ctor,dtor}(), let's rename them to pgtable_pte_page_{ctor,dtor}(). These changes were generated with the following shell script: ---- git grep -lw 'pgtable_page_.tor' | while read FILE; do sed -i '{s/pgtable_page_ctor/pgtable_pte_page_ctor/}' $FILE; sed -i '{s/pgtable_page_dtor/pgtable_pte_page_dtor/}' $FILE; done ---- ... with the documentation re-flowed to remain under 80 columns, and whitespace fixed up in macros to keep backslashes aligned. There should be no functional change as a result of this patch. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Mark Rutland <[email protected]> Reviewed-by: Mike Rapoport <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> [m68k] Cc: Anshuman Khandual <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Yu Zhao <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2019-09-24arm: use generic mmap top-down layout and brk randomizationAlexandre Ghiti1-2/+0
arm uses a top-down mmap layout by default that exactly fits the generic functions, so get rid of arch specific code and use the generic version by selecting ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT. As ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT selects ARCH_HAS_ELF_RANDOMIZE, use the generic version of arch_randomize_brk since it also fits. Note that this commit also removes the possibility for arm to have elf randomization and no MMU: without MMU, the security added by randomization is worth nothing. Note that it is safe to remove STACK_RND_MASK since it matches the default value. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Alexandre Ghiti <[email protected]> Acked-by: Kees Cook <[email protected]> Reviewed-by: Luis Chamberlain <[email protected]> Cc: Albert Ou <[email protected]> Cc: Alexander Viro <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: James Hogan <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Paul Burton <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Russell King <[email protected]> Cc: Will Deacon <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2019-09-24mm: consolidate pgtable_cache_init() and pgd_cache_init()Mike Rapoport2-7/+0
Both pgtable_cache_init() and pgd_cache_init() are used to initialize kmem cache for page table allocations on several architectures that do not use PAGE_SIZE tables for one or more levels of the page table hierarchy. Most architectures do not implement these functions and use __weak default NOP implementation of pgd_cache_init(). Since there is no such default for pgtable_cache_init(), its empty stub is duplicated among most architectures. Rename the definitions of pgd_cache_init() to pgtable_cache_init() and drop empty stubs of pgtable_cache_init(). Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Mike Rapoport <[email protected]> Acked-by: Will Deacon <[email protected]> [arm64] Acked-by: Thomas Gleixner <[email protected]> [x86] Cc: Catalin Marinas <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Matthew Wilcox <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2019-09-24mm: remove quicklist page table cachesNicholas Piggin1-2/+0
Patch series "mm: remove quicklist page table caches". A while ago Nicholas proposed to remove quicklist page table caches [1]. I've rebased his patch on the curren upstream and switched ia64 and sh to use generic versions of PTE allocation. [1] https://lore.kernel.org/linux-mm/[email protected] This patch (of 3): Remove page table allocator "quicklists". These have been around for a long time, but have not got much traction in the last decade and are only used on ia64 and sh architectures. The numbers in the initial commit look interesting but probably don't apply anymore. If anybody wants to resurrect this it's in the git history, but it's unhelpful to have this code and divergent allocator behaviour for minor archs. Also it might be better to instead make more general improvements to page allocator if this is still so slow. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Nicholas Piggin <[email protected]> Signed-off-by: Mike Rapoport <[email protected]> Cc: Tony Luck <[email protected]> Cc: Yoshinori Sato <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2019-09-22Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds1-0/+103
Pull ARM updates from Russell King: - fix various clang build and cppcheck issues - switch ARM to use new common outgoing-CPU-notification code - add some additional explanation about the boot code - kbuild "make clean" fixes - get rid of another "(____ptrval____)", this time for the VDSO code - avoid treating cache maintenance faults as a write - add a frame pointer unwinder implementation for clang - add EDAC support for Aurora L2 cache - improve robustness of adjust_lowmem_bounds() finding the bounds of lowmem. - add reset control for AMBA primecell devices * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (24 commits) ARM: 8906/1: drivers/amba: add reset control to amba bus probe ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 or newer ARM: 8904/1: skip nomap memblocks while finding the lowmem/highmem boundary ARM: 8903/1: ensure that usable memory in bank 0 starts from a PMD-aligned address ARM: 8891/1: EDAC: armada_xp: Add support for more SoCs ARM: 8888/1: EDAC: Add driver for the Marvell Armada XP SDRAM and L2 cache ECC ARM: 8892/1: EDAC: Add missing debugfs_create_x32 wrapper ARM: 8890/1: l2x0: add marvell,ecc-enable property for aurora ARM: 8889/1: dt-bindings: document marvell,ecc-enable binding ARM: 8886/1: l2x0: support parity-enable/disable on aurora ARM: 8885/1: aurora-l2: add defines for parity and ECC registers ARM: 8887/1: aurora-l2: add prefix to MAX_RANGE_SIZE ARM: 8902/1: l2c: move cache-aurora-l2.h to asm/hardware ARM: 8900/1: UNWINDER_FRAME_POINTER implementation for Clang ARM: 8898/1: mm: Don't treat faults reported from cache maintenance as writes ARM: 8896/1: VDSO: Don't leak kernel addresses ARM: 8895/1: visit mach-* and plat-* directories when cleaning ARM: 8894/1: boot: Replace open-coded nop with macro ARM: 8893/1: boot: Explain the 8 nops ARM: 8876/1: fix O= building with CONFIG_FPE_FASTFPE ...
2019-09-19Merge tag 'dma-mapping-5.4' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds4-103/+0
Pull dma-mapping updates from Christoph Hellwig: - add dma-mapping and block layer helpers to take care of IOMMU merging for mmc plus subsequent fixups (Yoshihiro Shimoda) - rework handling of the pgprot bits for remapping (me) - take care of the dma direct infrastructure for swiotlb-xen (me) - improve the dma noncoherent remapping infrastructure (me) - better defaults for ->mmap, ->get_sgtable and ->get_required_mask (me) - cleanup mmaping of coherent DMA allocations (me) - various misc cleanups (Andy Shevchenko, me) * tag 'dma-mapping-5.4' of git://git.infradead.org/users/hch/dma-mapping: (41 commits) mmc: renesas_sdhi_internal_dmac: Add MMC_CAP2_MERGE_CAPABLE mmc: queue: Fix bigger segments usage arm64: use asm-generic/dma-mapping.h swiotlb-xen: merge xen_unmap_single into xen_swiotlb_unmap_page swiotlb-xen: simplify cache maintainance swiotlb-xen: use the same foreign page check everywhere swiotlb-xen: remove xen_swiotlb_dma_mmap and xen_swiotlb_dma_get_sgtable xen: remove the exports for xen_{create,destroy}_contiguous_region xen/arm: remove xen_dma_ops xen/arm: simplify dma_cache_maint xen/arm: use dev_is_dma_coherent xen/arm: consolidate page-coherent.h xen/arm: use dma-noncoherent.h calls for xen-swiotlb cache maintainance arm: remove wrappers for the generic dma remap helpers dma-mapping: introduce a dma_common_find_pages helper dma-mapping: always use VM_DMA_COHERENT for generic DMA remap vmalloc: lift the arm flag for coherent mappings to common code dma-mapping: provide a better default ->get_required_mask dma-mapping: remove the dma_declare_coherent_memory export remoteproc: don't allow modular build ...
2019-09-18Merge branch 'linus' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - Add the ability to abort a skcipher walk. Algorithms: - Fix XTS to actually do the stealing. - Add library helpers for AES and DES for single-block users. - Add library helpers for SHA256. - Add new DES key verification helper. - Add surrounding bits for ESSIV generator. - Add accelerations for aegis128. - Add test vectors for lzo-rle. Drivers: - Add i.MX8MQ support to caam. - Add gcm/ccm/cfb/ofb aes support in inside-secure. - Add ofb/cfb aes support in media-tek. - Add HiSilicon ZIP accelerator support. Others: - Fix potential race condition in padata. - Use unbound workqueues in padata" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (311 commits) crypto: caam - Cast to long first before pointer conversion crypto: ccree - enable CTS support in AES-XTS crypto: inside-secure - Probe transform record cache RAM sizes crypto: inside-secure - Base RD fetchcount on actual RD FIFO size crypto: inside-secure - Base CD fetchcount on actual CD FIFO size crypto: inside-secure - Enable extended algorithms on newer HW crypto: inside-secure: Corrected configuration of EIP96_TOKEN_CTRL crypto: inside-secure - Add EIP97/EIP197 and endianness detection padata: remove cpu_index from the parallel_queue padata: unbind parallel jobs from specific CPUs padata: use separate workqueues for parallel and serial work padata, pcrypt: take CPU hotplug lock internally in padata_alloc_possible crypto: pcrypt - remove padata cpumask notifier padata: make padata_do_parallel find alternate callback CPU workqueue: require CPU hotplug read exclusion for apply_workqueue_attrs workqueue: unconfine alloc/apply/free_workqueue_attrs() padata: allocate workqueue internally arm64: dts: imx8mq: Add CAAM node random: Use wait_event_freezable() in add_hwgenerator_randomness() crypto: ux500 - Fix COMPILE_TEST warnings ...
2019-09-16Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds3-1336/+0
Pull ARM SoC platform updates from Arnd Bergmann: "The main change this time around is a cleanup of some of the oldest platforms based on the XScale and ARM9 CPU cores, which are between 10 and 20 years old. The Kendin/Micrel/Microchip KS8695, Winbond/Nuvoton W90x900 and Intel IOP33x/IOP13xx platforms are removed after we determined that nobody is using them any more. The TI Davinci and NXP LPC32xx platforms on the other hand are still in active use and are converted to the ARCH_MULTIPLATFORM build, meaning that we can compile a kernel that works on these along with most other ARMv5 platforms. Changes toward that goal are also merged for IOP32x, but additional work is needed to complete this. Patches for the remaining ARMv5 platforms have started but need more work and some testing. Support for the new ASpeed AST2600 gets added, this is based on the Cortex-A7 ARMv7 core, and is a newer version of the existing ARMv5 and ARMv6 chips in the same family. Other changes include a cleanup of the ST-Ericsson ux500 platform and the move of the TI Davinci platform to a new clocksource driver" [ The changes had marked INTEL_IOP_ADMA and USB_LPC32XX as being buildable on other platforms through COMPILE_TEST, but that causes new warnings that I most definitely do not want to see during the merge window as that could hide other issues. So the COMPILE_TEST option got disabled for them again - Linus ] * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (61 commits) ARM: multi_v5_defconfig: make DaVinci part of the ARM v5 multiplatform build ARM: davinci: support multiplatform build for ARM v5 arm64: exynos: Enable exynos-chipid driver ARM: OMAP2+: Delete an unnecessary kfree() call in omap_hsmmc_pdata_init() ARM: OMAP2+: move platform-specific asm-offset.h to arch/arm/mach-omap2 ARM: davinci: dm646x: Fix a typo in the comment ARM: davinci: dm646x: switch to using the clocksource driver ARM: davinci: dm644x: switch to using the clocksource driver ARM: aspeed: Enable SMP boot ARM: aspeed: Add ASPEED AST2600 architecture ARM: aspeed: Select timer in each SoC dt-bindings: arm: cpus: Add ASPEED SMP ARM: imx: stop adjusting ar8031 phy tx delay mailmap: map old company name to new one @microchip.com MAINTAINERS: at91: remove the TC entry MAINTAINERS: at91: Collect all pinctrl/gpio drivers in same entry ARM: at91: move platform-specific asm-offset.h to arch/arm/mach-at91 MAINTAINERS: Extend patterns for Samsung SoC, Security Subsystem and clock drivers ARM: s3c64xx: squash samsung_usb_phy.h into setup-usb-phy.c ARM: debug-ll: Add support for r7s9210 ...
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