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2018-12-29Merge tag 'for-4.21/libata-20181221' of git://git.kernel.dk/linux-blockLinus Torvalds2-0/+14
Pull libata updates from Jens Axboe: "Here are the libata changes for this merge window. Nothing major in here. This contains: - GPIO descriptor conversions (Linus Walleij) - rcar deferred probing fix (Sergei Shtylyov)" * tag 'for-4.21/libata-20181221' of git://git.kernel.dk/linux-block: sata_rcar: fix deferred probing ata: palmld: Introduce state container ata: palmld: Convert to GPIO descriptors ata: rb532_cf: Convert to use GPIO descriptors ata: sata_highbank: Convert to use GPIO descriptors ata: pxa: Drop <linux/gpio.h> include
2018-12-28Merge branch 'linus' of ↵Linus Torvalds9-175/+529
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - Add 1472-byte test to tcrypt for IPsec - Reintroduced crypto stats interface with numerous changes - Support incremental algorithm dumps Algorithms: - Add xchacha12/20 - Add nhpoly1305 - Add adiantum - Add streebog hash - Mark cts(cbc(aes)) as FIPS allowed Drivers: - Improve performance of arm64/chacha20 - Improve performance of x86/chacha20 - Add NEON-accelerated nhpoly1305 - Add SSE2 accelerated nhpoly1305 - Add AVX2 accelerated nhpoly1305 - Add support for 192/256-bit keys in gcmaes AVX - Add SG support in gcmaes AVX - ESN for inline IPsec tx in chcr - Add support for CryptoCell 703 in ccree - Add support for CryptoCell 713 in ccree - Add SM4 support in ccree - Add SM3 support in ccree - Add support for chacha20 in caam/qi2 - Add support for chacha20 + poly1305 in caam/jr - Add support for chacha20 + poly1305 in caam/qi2 - Add AEAD cipher support in cavium/nitrox" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (130 commits) crypto: skcipher - remove remnants of internal IV generators crypto: cavium/nitrox - Fix build with !CONFIG_DEBUG_FS crypto: salsa20-generic - don't unnecessarily use atomic walk crypto: skcipher - add might_sleep() to skcipher_walk_virt() crypto: x86/chacha - avoid sleeping under kernel_fpu_begin() crypto: cavium/nitrox - Added AEAD cipher support crypto: mxc-scc - fix build warnings on ARM64 crypto: api - document missing stats member crypto: user - remove unused dump functions crypto: chelsio - Fix wrong error counter increments crypto: chelsio - Reset counters on cxgb4 Detach crypto: chelsio - Handle PCI shutdown event crypto: chelsio - cleanup:send addr as value in function argument crypto: chelsio - Use same value for both channel in single WR crypto: chelsio - Swap location of AAD and IV sent in WR crypto: chelsio - remove set but not used variable 'kctx_len' crypto: ux500 - Use proper enum in hash_set_dma_transfer crypto: ux500 - Use proper enum in cryp_set_dma_transfer crypto: aesni - Add scatter/gather avx stubs, and use them in C crypto: aesni - Introduce partial block macro ..
2018-12-27Merge tag 'modules-for-v4.21' of ↵Linus Torvalds1-0/+11
git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull modules updates from Jessica Yu: - Some modules-related kallsyms cleanups and a kallsyms fix for ARM. - Include keys from the secondary keyring in module signature verification. * tag 'modules-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: ARM: module: Fix function kallsyms on Thumb-2 module: Overwrite st_size instead of st_info module: make it clearer when we're handling kallsyms symbols vs exported symbols modsign: use all trusted keys to verify module signature
2018-12-27Merge tag 'gcc-plugins-v4.21-rc1' of ↵Linus Torvalds7-3/+50
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull gcc-plugins update from Kees Cook: "Both arm and arm64 are gaining per-task stack canaries (to match x86), but arm is being done with a gcc plugin, hence it going through the gcc-plugins tree. New gcc-plugin: - Enable per-task stack protector for ARM (Ard Biesheuvel)" * tag 'gcc-plugins-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: ARM: smp: add support for per-task stack canaries
2018-12-26Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds5-8/+76
Pull KVM updates from Paolo Bonzini: "ARM: - selftests improvements - large PUD support for HugeTLB - single-stepping fixes - improved tracing - various timer and vGIC fixes x86: - Processor Tracing virtualization - STIBP support - some correctness fixes - refactorings and splitting of vmx.c - use the Hyper-V range TLB flush hypercall - reduce order of vcpu struct - WBNOINVD support - do not use -ftrace for __noclone functions - nested guest support for PAUSE filtering on AMD - more Hyper-V enlightenments (direct mode for synthetic timers) PPC: - nested VFIO s390: - bugfixes only this time" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits) KVM: x86: Add CPUID support for new instruction WBNOINVD kvm: selftests: ucall: fix exit mmio address guessing Revert "compiler-gcc: disable -ftracer for __noclone functions" KVM: VMX: Move VM-Enter + VM-Exit handling to non-inline sub-routines KVM: VMX: Explicitly reference RCX as the vmx_vcpu pointer in asm blobs KVM: x86: Use jmp to invoke kvm_spurious_fault() from .fixup MAINTAINERS: Add arch/x86/kvm sub-directories to existing KVM/x86 entry KVM/x86: Use SVM assembly instruction mnemonics instead of .byte streams KVM/MMU: Flush tlb directly in the kvm_zap_gfn_range() KVM/MMU: Flush tlb directly in kvm_set_pte_rmapp() KVM/MMU: Move tlb flush in kvm_set_pte_rmapp() to kvm_mmu_notifier_change_pte() KVM: Make kvm_set_spte_hva() return int KVM: Replace old tlb flush function with new one to flush a specified range. KVM/MMU: Add tlb flush with range helper function KVM/VMX: Add hv tlb range flush support x86/hyper-v: Add HvFlushGuestAddressList hypercall support KVM: Add tlb_remote_flush_with_range callback in kvm_x86_ops KVM: x86: Disable Intel PT when VMXON in L1 guest KVM: x86: Set intercept for Intel PT MSRs read/write KVM: x86: Implement Intel PT MSRs read/write emulation ...
2018-12-26Merge tag 'arm64-upstream' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 festive updates from Will Deacon: "In the end, we ended up with quite a lot more than I expected: - Support for ARMv8.3 Pointer Authentication in userspace (CRIU and kernel-side support to come later) - Support for per-thread stack canaries, pending an update to GCC that is currently undergoing review - Support for kexec_file_load(), which permits secure boot of a kexec payload but also happens to improve the performance of kexec dramatically because we can avoid the sucky purgatory code from userspace. Kdump will come later (requires updates to libfdt). - Optimisation of our dynamic CPU feature framework, so that all detected features are enabled via a single stop_machine() invocation - KPTI whitelisting of Cortex-A CPUs unaffected by Meltdown, so that they can benefit from global TLB entries when KASLR is not in use - 52-bit virtual addressing for userspace (kernel remains 48-bit) - Patch in LSE atomics for per-cpu atomic operations - Custom preempt.h implementation to avoid unconditional calls to preempt_schedule() from preempt_enable() - Support for the new 'SB' Speculation Barrier instruction - Vectorised implementation of XOR checksumming and CRC32 optimisations - Workaround for Cortex-A76 erratum #1165522 - Improved compatibility with Clang/LLD - Support for TX2 system PMUS for profiling the L3 cache and DMC - Reflect read-only permissions in the linear map by default - Ensure MMIO reads are ordered with subsequent calls to Xdelay() - Initial support for memory hotplug - Tweak the threshold when we invalidate the TLB by-ASID, so that mremap() performance is improved for ranges spanning multiple PMDs. - Minor refactoring and cleanups" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (125 commits) arm64: kaslr: print PHYS_OFFSET in dump_kernel_offset() arm64: sysreg: Use _BITUL() when defining register bits arm64: cpufeature: Rework ptr auth hwcaps using multi_entry_cap_matches arm64: cpufeature: Reduce number of pointer auth CPU caps from 6 to 4 arm64: docs: document pointer authentication arm64: ptr auth: Move per-thread keys from thread_info to thread_struct arm64: enable pointer authentication arm64: add prctl control for resetting ptrauth keys arm64: perf: strip PAC when unwinding userspace arm64: expose user PAC bit positions via ptrace arm64: add basic pointer authentication support arm64/cpufeature: detect pointer authentication arm64: Don't trap host pointer auth use to EL2 arm64/kvm: hide ptrauth from guests arm64/kvm: consistently handle host HCR_EL2 flags arm64: add pointer authentication register bits arm64: add comments about EC exception levels arm64: perf: Treat EXCLUDE_EL* bit definitions as unsigned arm64: kpti: Whitelist Cortex-A CPUs that don't implement the CSV3 field arm64: enable per-task stack canaries ...
2018-12-26Merge tag 'regulator-v4.21' of ↵Linus Torvalds2-2/+17
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator updates from Mark Brown: "This has been a very busy release for the core, some fixes, one large new feature and a big bit of refactoring to update the GPIO API: - Support for coupled regulators from Dmitry Osipenko based on a prior attempt by Maciej Purski, allowing us to handle situations where the voltages on two regulators can't be too far apart from each other. - Conversion of the GPIO support in both drivers and the core to use GPIO descriptors rather than numbers, part of the overall project to remove GPIO numbers. - Support for standby mode suspend states from Andrei Stefanescu. - New drivers for Allwinner AXP209, Cirrus Logic Lochnagar and Microchip MPC16502" * tag 'regulator-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (90 commits) regulator: tps65910: fix a missing check of return value regulator: mcp16502: Select REGMAP_I2C to fix build error regulator: convert to DEFINE_SHOW_ATTRIBUTE regulator: mcp16502: Fix missing n_voltages setting regulator: mcp16502: Use #ifdef CONFIG_PM_SLEEP around mcp16502_suspend/resume_noirq regulator: mcp16502: code cleanup regulator: act8945a-regulator: make symbol act8945a_pm static drivers/regulator: fix a missing check of return value regulator: act8945a-regulator: fix 'defined but not used' compiler warning regulator: axp20x: fix set_ramp_delay for AXP209/dcdc2 regulator: mcp16502: add support for suspend mfd: axp20x: use explicit bit defines mfd: axp20x: Clean up included headers regulator: dts: enable soft-start and ramp delay for the OLinuXino Lime2 dt-bindings: mfd: axp20x: Add software based soft_start for AXP209 LDO3 regulator: axp20x: add software based soft_start for AXP209 LDO3 dt-bindings: mfd: axp20x: add support for regulator-ramp-delay for AXP209 regulator: axp20x: add support for set_ramp_delay for AXP209 mfd: axp20x: name voltage ramping define properly regulator: mcp16502: add regulator driver for MCP16502 ...
2018-12-26Merge tag 'sound-4.21-rc1' of ↵Linus Torvalds7-17/+16
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "There are no intensive changes in both ALSA and ASoC core parts while rather most of changes are a bunch of driver fixes and updates. A large diff pattern appears in ASoC TI part which now merges both OMAP and DaVinci stuff, but the rest spreads allover the places. Note that this pull request includes also some updates for LED trigger and platform drivers for mute LEDs, appearing in the diffstat as well. Some highlights: ASoC: - Preparatory work for merging the audio-graph and audio-graph-scu cards - A merge of TI OMAP and DaVinci directories, as both product lines get merged together. Also including a few architecture changes as well. - Major cleanups of the Maxim MAX9867 driver - Small fixes for tablets & co with Intel BYT/CHT chips - Lots of rsnd updates as usual - Support for Asahi Kaesi AKM4118, AMD ACP3x, Intel platforms with RT5660, Meson AXG S/PDIF inputs, several Qualcomm IPs and Xilinx I2S controllers HD-audio: - Introduce audio-mute LED trigger for replacing the former hackish dynamic binding - Huawei WMI hotkey and mute LED support - Refactoring of PM code and display power controls - Headset button support in the generic jack code - A few updates for Tegra - Fixups for HP EliteBook and ASUS UX391UA - Lots of updates for Intel ASoC HD-audio, including the improved DSP detection and the fallback binding from ASoC SST to legacy HD-audio controller drivers Others: - Updates for FireWire TASCAM and Fireface devices, some other fixes - A few potential Spectre v1 fixes that are all trivial" * tag 'sound-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (280 commits) ALSA: HD-Audio: SKL+: force HDaudio legacy or SKL+ driver selection ALSA: HD-Audio: SKL+: abort probe if DSP is present and Skylake driver selected ALSA: HDA: export process_unsol_events() ALSA: hda/realtek: Enable audio jacks of ASUS UX391UA with ALC294 ALSA: bebob: fix model-id of unit for Apogee Ensemble ALSA: emu10k1: Fix potential Spectre v1 vulnerabilities ALSA: rme9652: Fix potential Spectre v1 vulnerability ASoC: ti: Kconfig: Remove the deprecated options ARM: davinci_all_defconfig: Update the audio options ARM: omap1_defconfig: Do not select ASoC by default ARM: omap2plus_defconfig: Update the audio options ARM: davinci: dm365-evm: Update for the new ASoC Kcofnig options ARM: OMAP2: Update for new MCBSP Kconfig option ARM: OMAP1: Makefile: Update for new MCBSP Kconfig option MAINTAINERS: Add entry for sound/soc/ti and update the OMAP audio support ASoC: ti: Merge davinci and omap directories ALSA: hda: add mute LED support for HP EliteBook 840 G4 ALSA: fireface: code refactoring to handle model-specific registers ALSA: fireface: add support for packet streaming on Fireface 800 ALSA: fireface: allocate isochronous resources in mode-specific implementation ...
2018-12-25Merge tag 'mtd/for-4.21' of git://git.infradead.org/linux-mtdLinus Torvalds1-12/+10
Pull mtd updates from Boris Brezillon: "SPI NOR Core changes: - Parse the 4BAIT SFDP section - Add a bunch of SPI NOR entries to the flash_info table - Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F - A bunch of minor cleanups/comestic changes NAND core changes: - kernel-doc miscellaneous fixes. - Third batch of fixes/cleanup to the raw NAND core impacting various controller drivers (ams-delta, marvell, fsmc, denali, tegra, vf610): * Stop to pass mtd_info objects to internal functions * Reorganize code to avoid forward declarations * Drop useless test in nand_legacy_set_defaults() * Move nand_exec_op() to internal.h * Add nand_[de]select_target() helpers * Pass the CS line to be selected in struct nand_operation * Make ->select_chip() optional when ->exec_op() is implemented * Deprecate the ->select_chip() hook * Move the ->exec_op() method to nand_controller_ops * Move ->setup_data_interface() to nand_controller_ops * Deprecate the dummy_controller field * Fix JEDEC detection * Provide a helper for polling GPIO R/B pin Raw NAND chip drivers changes: - Macronix: * Flag 1.8V AC chips with a broken GET_FEATURES(TIMINGS) Raw NAND controllers drivers changes: - Ams-delta: * Fix the error path * SPDX tag added * May be compiled with COMPILE_TEST=y * Conversion to ->exec_op() interface * Drop .IOADDR_R/W use * Use GPIO API for data I/O - Denali: * Remove denali_reset_banks() * Remove ->dev_ready() hook * Include <linux/bits.h> instead of <linux/bitops.h> * Changes to comply with the above fixes/cleanup done in the core. - FSMC: * Add an SPDX tag to replace the license text * Make conversion from chip to fsmc consistent * Fix unchecked return value in fsmc_read_page_hwecc * Changes to comply with the above fixes/cleanup done in the core. - Marvell: * Prevent timeouts on a loaded machine (fix) * Changes to comply with the above fixes/cleanup done in the core. - OMAP2: * Pass the parent of pdev to dma_request_chan() (fix) - R852: * Use generic DMA API - sh_flctl: * Convert to SPDX identifiers - Sunxi: * Write pageprog related opcodes to the right register: WCMD_SET (fix) - Tegra: * Stop implementing ->select_chip() - VF610: * Add an SPDX tag to replace the license text * Changes to comply with the above fixes/cleanup done in the core. - Various trivial/spelling/coding style fixes. SPI-NAND drivers changes: - Remove the depreacated mt29f_spinand driver from staging. - Add support for: * Toshiba TC58CVG2S0H * GigaDevice GD5FxGQ4xA * Winbond W25N01GV JFFS2 changes: - Fix a lockdep issue MTD changes: - Rework the physmap driver to merge gpio-addr-flash and physmap_of in it - Add a new compatible for RedBoot partitions - Make sub-partitions RW if the parent partition was RO because of a mis-alignment - Add pinctrl support to the - Addition of /* fall-through */ comments where appropriate - Various minor fixes and cleanups Other changes: - Update my email address" * tag 'mtd/for-4.21' of git://git.infradead.org/linux-mtd: (108 commits) mtd: rawnand: sunxi: Write pageprog related opcodes to WCMD_SET MAINTAINERS: Update my email address mtd: rawnand: marvell: prevent timeouts on a loaded machine mtd: rawnand: omap2: Pass the parent of pdev to dma_request_chan() mtd: rawnand: Fix JEDEC detection mtd: spi-nor: Add support for is25lp016d mtd: spi-nor: parse SFDP 4-byte Address Instruction Table mtd: spi-nor: Add 4B_OPCODES flag to is25lp256 mtd: spi-nor: Add an SPDX tag to spi-nor.{c,h} mtd: spi-nor: Make the enable argument passed to set_byte() a bool mtd: spi-nor: Stop passing flash_info around mtd: spi-nor: Avoid forward declaration of internal functions mtd: spi-nor: Drop inline on all internal helpers mtd: spi-nor: Add a post BFPT fixup for MX25L25635E mtd: spi-nor: Add a post BFPT parsing fixup hook mtd: spi-nor: Add the SNOR_F_4B_OPCODES flag mtd: spi-nor: cast to u64 to avoid uint overflows mtd: spi-nor: Add support for IS25LP032/064 mtd: spi-nor: add entry for mt35xu512aba flash mtd: spi-nor: add macros related to MICRON flash ...
2018-12-21Merge branch 'regulator-4.21' into regulator-nextMark Brown2-2/+17
2018-12-21KVM: Make kvm_set_spte_hva() return intLan Tianyu1-1/+1
The patch is to make kvm_set_spte_hva() return int and caller can check return value to determine flush tlb or not. Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com> Acked-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-19Merge tag 'kvmarm-for-v4.21' of ↵Paolo Bonzini5-7/+75
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm updates for 4.21 - Large PUD support for HugeTLB - Single-stepping fixes - Improved tracing - Various timer and vgic fixups
2018-12-19arm: KVM: Add S2_PMD_{MASK,SIZE} constantsMarc Zyngier1-0/+3
They were missing, and it turns out that we do need them now. Acked-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-19arm/arm64: KVM: Add ARM_EXCEPTION_IS_TRAP macroMarc Zyngier1-0/+4
32 and 64bit use different symbols to identify the traps. 32bit has a fine grained approach (prefetch abort, data abort and HVC), while 64bit is pretty happy with just "trap". This has been fine so far, except that we now need to decode some of that in tracepoints that are common to both architectures. Introduce ARM_EXCEPTION_IS_TRAP which abstracts the trap symbols and make the tracepoint use it. Acked-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-18Merge tag 'spi-nor/for-4.21' of git://git.infradead.org/linux-mtd into mtd/nextBoris Brezillon26-137/+331
Core changes: - Parse the 4BAIT SFDP section - Add a bunch of SPI NOR entries to the flash_info table - Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F - A bunch of minor cleanups/comestic changes
2018-12-18KVM: arm64: Add support for creating PUD hugepages at stage 2Punit Agrawal2-0/+25
KVM only supports PMD hugepages at stage 2. Now that the various page handling routines are updated, extend the stage 2 fault handling to map in PUD hugepages. Addition of PUD hugepage support enables additional page sizes (e.g., 1G with 4K granule) which can be useful on cores that support mapping larger block sizes in the TLB entries. Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> [ Replace BUG() => WARN_ON(1) for arm32 PUD helpers ] Signed-off-by: Suzuki Poulose <suzuki.poulose@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-18KVM: arm64: Update age handlers to support PUD hugepagesPunit Agrawal1-0/+6
In preparation for creating larger hugepages at Stage 2, add support to the age handling notifiers for PUD hugepages when encountered. Provide trivial helpers for arm32 to allow sharing code. Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> [ Replaced BUG() => WARN_ON(1) for arm32 PUD helpers ] Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-18KVM: arm64: Support handling access faults for PUD hugepagesPunit Agrawal1-0/+9
In preparation for creating larger hugepages at Stage 2, extend the access fault handling at Stage 2 to support PUD hugepages when encountered. Provide trivial helpers for arm32 to allow sharing of code. Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> [ Replaced BUG() => WARN_ON(1) in PUD helpers ] Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-18KVM: arm64: Support PUD hugepage in stage2_is_exec()Punit Agrawal1-0/+6
In preparation for creating PUD hugepages at stage 2, add support for detecting execute permissions on PUD page table entries. Faults due to lack of execute permissions on page table entries is used to perform i-cache invalidation on first execute. Provide trivial implementations of arm32 helpers to allow sharing of code. Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> [ Replaced BUG() => WARN_ON(1) in arm32 PUD helpers ] Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-18KVM: arm64: Support dirty page tracking for PUD hugepagesPunit Agrawal1-0/+15
In preparation for creating PUD hugepages at stage 2, add support for write protecting PUD hugepages when they are encountered. Write protecting guest tables is used to track dirty pages when migrating VMs. Also, provide trivial implementations of required kvm_s2pud_* helpers to allow sharing of code with arm32. Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> [ Replaced BUG() => WARN_ON() in arm32 pud helpers ] Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-18KVM: arm/arm64: Introduce helpers to manipulate page table entriesPunit Agrawal1-0/+5
Introduce helpers to abstract architectural handling of the conversion of pfn to page table entries and marking a PMD page table entry as a block entry. The helpers are introduced in preparation for supporting PUD hugepages at stage 2 - which are supported on arm64 but do not exist on arm. Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Christoffer Dall <christoffer.dall@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-18KVM: arm/arm64: Log PSTATE for unhandled sysregsMark Rutland1-2/+2
When KVM traps an unhandled sysreg/coproc access from a guest, it logs the guest PC. To aid debugging, it would be helpful to know which exception level the trap came from, along with other PSTATE/CPSR bits, so let's log the PSTATE/CPSR too. Acked-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-18arm64: KVM: Consistently advance singlestep when emulating instructionsMark Rutland1-5/+0
When we emulate a guest instruction, we don't advance the hardware singlestep state machine, and thus the guest will receive a software step exception after a next instruction which is not emulated by the host. We bodge around this in an ad-hoc fashion. Sometimes we explicitly check whether userspace requested a single step, and fake a debug exception from within the kernel. Other times, we advance the HW singlestep state rely on the HW to generate the exception for us. Thus, the observed step behaviour differs for host and guest. Let's make this simpler and consistent by always advancing the HW singlestep state machine when we skip an instruction. Thus we can rely on the hardware to generate the singlestep exception for us, and never need to explicitly check for an active-pending step, nor do we need to fake a debug exception from the guest. Cc: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-12-18Merge branch 'asoc-4.21' into asoc-nextMark Brown7-17/+16
2018-12-18ARM: davinci_all_defconfig: Update the audio optionsPeter Ujfalusi1-2/+3
Use the new options for default audio support. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-18ARM: omap1_defconfig: Do not select ASoC by defaultPeter Ujfalusi1-2/+0
No audio support is enabled by default via ASoC, disable the code as well. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-18ARM: omap2plus_defconfig: Update the audio optionsPeter Ujfalusi1-7/+7
Use the new options for default audio support and enable Nokia n900 audio as well. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-18ARM: davinci: dm365-evm: Update for the new ASoC Kcofnig optionsPeter Ujfalusi1-2/+2
The codec selection config options for DMA365 has been changed. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-18ARM: OMAP2: Update for new MCBSP Kconfig optionPeter Ujfalusi2-3/+3
The MCBSP config option has been changed. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-18ARM: OMAP1: Makefile: Update for new MCBSP Kconfig optionPeter Ujfalusi1-1/+1
The MCBSP config option has been changed. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-14ARM: module: Fix function kallsyms on Thumb-2Vincent Whitchurch1-0/+11
Thumb-2 functions have the lowest bit set in the symbol value in the symtab. When kallsyms are generated for the vmlinux, the kallsyms are generated from the output of nm, and nm clears the lowest bit. $ arm-linux-gnueabihf-readelf -a vmlinux | grep show_interrupts 95947: 8015dc89 686 FUNC GLOBAL DEFAULT 2 show_interrupts $ arm-linux-gnueabihf-nm vmlinux | grep show_interrupts 8015dc88 T show_interrupts $ cat /proc/kallsyms | grep show_interrupts 8015dc88 T show_interrupts However, for modules, the kallsyms uses the values in the symbol table without modification, so for functions in modules, the lowest bit is set in kallsyms. $ arm-linux-gnueabihf-readelf -a drivers/net/tun.ko | grep tun_get_socket 333: 00002d4d 36 FUNC GLOBAL DEFAULT 1 tun_get_socket $ arm-linux-gnueabihf-nm drivers/net/tun.ko | grep tun_get_socket 00002d4c T tun_get_socket $ cat /proc/kallsyms | grep tun_get_socket 7f802d4d t tun_get_socket [tun] Because of this, the symbol+offset of the crashing instruction shown in oopses is incorrect when the crash is in a module. For example, given a tun_get_socket which starts like this, 00002d4c <tun_get_socket>: 2d4c: 6943 ldr r3, [r0, #20] 2d4e: 4a07 ldr r2, [pc, #28] 2d50: 4293 cmp r3, r2 a crash when tun_get_socket is called with NULL results in: PC is at tun_xdp+0xa3/0xa4 [tun] pc : [<7f802d4c>] As can be seen, the "PC is at" line reports the wrong symbol name, and the symbol+offset will point to the wrong source line if it is passed to gdb. To solve this, add a way for archs to fixup the reading of these module kallsyms values, and use that to clear the lowest bit for function symbols on Thumb-2. After the fix: # cat /proc/kallsyms | grep tun_get_socket 7f802d4c t tun_get_socket [tun] PC is at tun_get_socket+0x0/0x24 [tun] pc : [<7f802d4c>] Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Signed-off-by: Jessica Yu <jeyu@kernel.org>
2018-12-13regulator: dts: enable soft-start and ramp delay for the OLinuXino Lime2Olliver Schinagl1-0/+2
The OLinuXino Lime2 has a big capacitor on its LDO3 output. It is actually too large, causing the PMIC to shutdown when toggling the LDO3. By enabling soft-start and ramp delay we increase the time for the capacitor to charge lowering the current drain on the power regulator. Signed-off-by: Olliver Schinagl <oliver@schinagl.nl> Signed-off-by: Priit Laes <plaes@plaes.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13ARM: smp: add support for per-task stack canariesArd Biesheuvel7-3/+50
On ARM, we currently only change the value of the stack canary when switching tasks if the kernel was built for UP. On SMP kernels, this is impossible since the stack canary value is obtained via a global symbol reference, which means a) all running tasks on all CPUs must use the same value b) we can only modify the value when no kernel stack frames are live on any CPU, which is effectively never. So instead, use a GCC plugin to add a RTL pass that replaces each reference to the address of the __stack_chk_guard symbol with an expression that produces the address of the 'stack_canary' field that is added to struct thread_info. This way, each task will use its own randomized value. Cc: Russell King <linux@armlinux.org.uk> Cc: Kees Cook <keescook@chromium.org> Cc: Emese Revfy <re.emese@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Laura Abbott <labbott@redhat.com> Cc: kernel-hardening@lists.openwall.com Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Kees Cook <keescook@chromium.org>
2018-12-11Merge branch 'for-linus' of ↵Mark Brown38-155/+369
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-4.21
2018-12-10Merge tag 'armsoc-fixes' of ↵Linus Torvalds9-14/+41
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "The usual batch; most of them are DT tweaks to fix misdescribed hardware. Beyond that: - A bugfix for MMP2 CPU detection, it's been there quite a while but makes sense to fix now anyway. - Some power management tweaks: + disabling of CPU idle power state on Marvell Armada 7K/8K (Macchiatobin et al) + Increase of minimum voltage on BananaPi M3 + Tweak of power ramp time for DVFS on NXP/Freescale i.MX7SX - A couple of MAINTAINER updates: + MMP has a new volunteer to look after it + Mediatek adds a few keywords, IRC channel and wiki URL" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: dts: imx7d-nitrogen7: Fix the description of the Wifi clock ARM: imx: update the cpu power up timing setting on i.mx6sx Revert "arm64: dts: marvell: add CPU Idle power state support on Armada 7K/8K" ARM: dts: imx7d-pico: Describe the Wifi clock ARM: dts: realview: Fix some more duplicate regulator nodes MAINTAINERS: update entry for MMP platform ARM: mmp/mmp2: fix cpu_is_mmp2() on mmp2-dt MAINTAINERS: mediatek: Update SoC entry ARM: dts: bcm2837: Fix polarity of wifi reset GPIOs arm64: dts: mt7622: Drop the general purpose timer node arm64: dts: mt7622: fix no more console output on BPI-R64 board arm64: dts: mt7622: fix no more console output on rfb1 ARM: dts: sun8i: a83t: bananapi-m3: increase vcc-pd voltage to 3.3V
2018-12-10KVM: arm64: Rework detection of SVE, !VHE systemsMarc Zyngier1-1/+1
An SVE system is so far the only case where we mandate VHE. As we're starting to grow this requirements, let's slightly rework the way we deal with that situation, allowing for easy extension of this check. Acked-by: Christoffer Dall <christoffer.dall@arm.com> Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-12-09Merge tag 'sunxi-fixes-for-4.20' of ↵Olof Johansson1-2/+2
https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes Allwinner fixes for 4.20 One small fix for a regulator range on the Banana Pi M3 * tag 'sunxi-fixes-for-4.20' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: ARM: dts: sun8i: a83t: bananapi-m3: increase vcc-pd voltage to 3.3V Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-09Merge tag 'imx-fixes-4.20-3' of ↵Olof Johansson3-4/+29
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes i.MX fixes for 4.20, round 3: - A couple of fixes on imx7d-pico and imx7d-nitrogen7 boards to correct the description of the Wifi clock. - Change SW2ISO count to get a safer ARM LDO ramp-up time, so that different boards can be covered. This fixes the ARM LDO failure seen on some customer boards. * tag 'imx-fixes-4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: dts: imx7d-nitrogen7: Fix the description of the Wifi clock ARM: imx: update the cpu power up timing setting on i.mx6sx ARM: dts: imx7d-pico: Describe the Wifi clock Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-07ARM: OMAP1: ams-delta: Drop obsolete NAND resourcesJanusz Krzysztofik1-11/+0
Amstrad Delta NAND driver now uses GPIO API for data I/O so there is no need to assign memory I/O resource to the device any longer. Drop it. Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-12-07ARM: OMAP1: ams-delta: Provide GPIO lookup table for NAND data portJanusz Krzysztofik1-1/+10
Data port used by Amstrad Delta NAND driver is actually an OMAP MPUIO device, already under control of gpio-omap driver. The NAND driver gets access to the port by ioremapping it and performs read/write operations. That is done without any proteciton from other users legally manipulating the port pins over GPIO API. The plan is to convert the driver to access the port over GPIO consumer API. Before that is implemented, the driver can already obtain exclusive access to the port by requesting an array of its GPIO descriptors. Add respective entries to the NAND GPIO lookup table. Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2018-12-07Merge branch 'spectre' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds1-0/+10
Pull ARM spectre fix from Russell King: "Exynos folk noticed that CPU hotplug wasn't working with their kernel configuration, and have tested this as fixing the problem" * 'spectre' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: ensure that processor vtables is not lost after boot
2018-12-07Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds4-10/+16
Pull ARM fixes from Russell King: "Some small fixes that have been accumulated: - Chris Cole noticed that in a SMP environment, the DMA cache coherence handling can produce undesirable results in a corner case - Propagate that fix for ARMv7M as well - Fix a false positive with source fortification - Fix an uninitialised return that Nathan Jones spotted" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8816/1: dma-mapping: fix potential uninitialized return ARM: 8815/1: V7M: align v7m_dma_inv_range() with v7 counterpart ARM: 8814/1: mm: improve/fix ARM v7_dma_inv_range() unaligned address handling ARM: 8806/1: kprobes: Fix false positive with FORTIFY_SOURCE
2018-12-06ARM: ensure that processor vtables is not lost after bootRussell King1-0/+10
Marek Szyprowski reported problems with CPU hotplug in current kernels. This was tracked down to the processor vtables being located in an init section, and therefore discarded after kernel boot, despite being required after boot to properly initialise the non-boot CPUs. Arrange for these tables to end up in .rodata when required. Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Fixes: 383fb3ee8024 ("ARM: spectre-v2: per-CPU vtables to work around big.Little systems") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-12-06ARM: dts: imx7d-nitrogen7: Fix the description of the Wifi clockFabio Estevam1-2/+7
According to bindings/regulator/fixed-regulator.txt the 'clocks' and 'clock-names' properties are not valid ones. In order to turn on the Wifi clock the correct location for describing the CLKO2 clock is via a mmc-pwrseq handle, so do it accordingly. Fixes: 56354959cfec ("ARM: dts: imx: add Boundary Devices Nitrogen7 board") Signed-off-by: Fabio Estevam <festevam@gmail.com> Acked-by: Troy Kisky <troy.kisky@boundarydevices.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-12-06ARM: imx: update the cpu power up timing setting on i.mx6sxAnson Huang1-1/+1
The sw2iso count should cover ARM LDO ramp-up time, the MAX ARM LDO ramp-up time may be up to more than 100us on some boards, this patch sets sw2iso to 0xf (~384us) which is the reset value, and it is much more safe to cover different boards, since we have observed that some customer boards failed with current setting of 0x2. Fixes: 05136f0897b5 ("ARM: imx: support arm power off in cpuidle for i.mx6sx") Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-12-05ARM: dts: imx7d-pico: Describe the Wifi clockFabio Estevam1-1/+21
The Wifi chip should be clocked by a 32kHz clock coming from i.MX7D CLKO2 output pin, so describe the pinmux and clock hierarchy in the device tree to allow the Wifi chip to be properly clocked. Managed to successfully test Wifi with such change. Used the standard nvram.txt file provided by TechNexion, which selects an external 32kHz clock for the Wifi chip by default. Fixes: 99a52450c707 ("ARM: dts: imx7d-pico: Add Wifi support") Suggested-by: Arend van Spriel <arend.vanspriel@broadcom.com> Tested-by: Otavio Salvador <otavio@ossystems.com.br> Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-12-05ata: palmld: Convert to GPIO descriptorsLinus Walleij2-0/+14
Instead of passing GPIO numbers directly to the PalmLD ATA driver, pass GPIO descriptors from the board file and handle these in the driver. Cc: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-12-05ARM: 8816/1: dma-mapping: fix potential uninitialized returnNathan Jones1-1/+1
While trying to use the dma_mmap_*() interface, it was noticed that this interface returns strange values when passed an incorrect length. If neither of the if() statements fire then the return value is uninitialized. In the worst case it returns 0 which means the caller will think the function succeeded. Fixes: 1655cf8829d8 ("ARM: dma-mapping: Remove traces of NOMMU code") Signed-off-by: Nathan Jones <nathanj439@gmail.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-12-05ARM: 8815/1: V7M: align v7m_dma_inv_range() with v7 counterpartVladimir Murzin1-5/+9
Chris has discovered and reported that v7_dma_inv_range() may corrupt memory if address range is not aligned to cache line size. Since the whole cache-v7m.S was lifted form cache-v7.S the same observation applies to v7m_dma_inv_range(). So the fix just mirrors what has been done for v7 with a little specific of M-class. Cc: Chris Cole <chris@sageembedded.com> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-12-05ARM: 8814/1: mm: improve/fix ARM v7_dma_inv_range() unaligned address handlingChris Cole1-3/+5
This patch addresses possible memory corruption when v7_dma_inv_range(start_address, end_address) address parameters are not aligned to whole cache lines. This function issues "invalidate" cache management operations to all cache lines from start_address (inclusive) to end_address (exclusive). When start_address and/or end_address are not aligned, the start and/or end cache lines are first issued "clean & invalidate" operation. The assumption is this is done to ensure that any dirty data addresses outside the address range (but part of the first or last cache lines) are cleaned/flushed so that data is not lost, which could happen if just an invalidate is issued. The problem is that these first/last partial cache lines are issued "clean & invalidate" and then "invalidate". This second "invalidate" is not required and worse can cause "lost" writes to addresses outside the address range but part of the cache line. If another component writes to its part of the cache line between the "clean & invalidate" and "invalidate" operations, the write can get lost. This fix is to remove the extra "invalidate" operation when unaligned addressed are used. A kernel module is available that has a stress test to reproduce the issue and a unit test of the updated v7_dma_inv_range(). It can be downloaded from http://ftp.sageembedded.com/outgoing/linux/cache-test-20181107.tgz. v7_dma_inv_range() is call by dmac_[un]map_area(addr, len, direction) when the direction is DMA_FROM_DEVICE. One can (I believe) successfully argue that DMA from a device to main memory should use buffers aligned to cache line size, because the "clean & invalidate" might overwrite data that the device just wrote using DMA. But if a driver does use unaligned buffers, at least this fix will prevent memory corruption outside the buffer. Signed-off-by: Chris Cole <chris@sageembedded.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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