summaryrefslogtreecommitdiffstats
path: root/Documentation
AgeCommit message (Collapse)AuthorFilesLines
2017-09-05Merge tag 'tty-4.14-rc1' of ↵Linus Torvalds4-8/+18
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial updates from Greg KH: "Here is the big tty/serial driver update for 4.14-rc1. Well, not all that big, just a number of small serial driver fixes, and a new serial driver. Also in here are some much needed goldfish tty driver (emulator) fixes to try to get that codebase under control. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (94 commits) tty: goldfish: Implement support for kernel 'earlycon' parameter tty: goldfish: Use streaming DMA for r/w operations on Ranchu platforms tty: goldfish: Refactor constants to better reflect their nature serial: 8250_port: Remove useless NULL checks earlycon: initialise baud field of earlycon device structure tty: hvcs: make ktermios const pty: show associative slave of ptmx in fdinfo tty: n_gsm: Add compat_ioctl tty: hvcs: constify vio_device_id tty: hvc_vio: constify vio_device_id tty: mips_ejtag_fdc: constify mips_cdmm_device_id Introduce 8250_men_mcb mcb: introduce mcb_get_resource() serial: imx: Avoid post-PIO cleanup if TX DMA is started tty: serial: imx: disable irq after suspend serial: 8250_uniphier: add suspend/resume support serial: 8250_uniphier: use CHAR register for canary to detect power-off serial: 8250_uniphier: fix serial port index in private data serial: 8250: of: Add new port type for MediaTek BTIF controller on MT7622/23 SoC dt-bindings: serial: 8250: Add MediaTek BTIF controller bindings ...
2017-09-05Merge tag 'usb-4.14-rc1' of ↵Linus Torvalds13-18/+155
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/PHY driver updates from Greg KH: "Here is the large USB and PHY driver update for 4.14-rc1. Not all that exciting, a few new PHY drivers, the usual mess of gadget driver updates and fixes, and of course, xhci updates to try to tame that beast. A number of usb-serial updates and other small fixes all over the USB driver tree are in here as well. Full details are in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'usb-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (171 commits) usbip: vhci-hcd: make vhci_hc_driver const usb: phy: Avoid unchecked dereference warning usb: imx21-hcd: make imx21_hc_driver const usb: host: make ehci_fsl_overrides const and __initconst dt-bindings: mt8173-mtu3: add generic compatible and rename file dt-bindings: mt8173-xhci: add generic compatible and rename file usb: xhci-mtk: add generic compatible string usbip: auto retry for concurrent attach USB: serial: option: simplify 3 D-Link device entries USB: serial: option: add support for D-Link DWM-157 C1 usb: core: usbport: fix "BUG: key not in .data" when lockdep is enabled usb: chipidea: usb2: check memory allocation failure usb: Add device quirk for Logitech HD Pro Webcam C920-C usb: misc: lvstest: add entry to place port in compliance mode usb: xhci: Support enabling of compliance mode for xhci 1.1 usb:xhci:Fix regression when ATI chipsets detected usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard usb: gadget: make snd_pcm_hardware const usb: common: use of_property_read_bool() USB: core: constify vm_operations_struct ...
2017-09-05Merge tag 'arm64-upstream' of ↵Linus Torvalds2-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Catalin Marinas: - VMAP_STACK support, allowing the kernel stacks to be allocated in the vmalloc space with a guard page for trapping stack overflows. One of the patches introduces THREAD_ALIGN and changes the generic alloc_thread_stack_node() to use this instead of THREAD_SIZE (no functional change for other architectures) - Contiguous PTE hugetlb support re-enabled (after being reverted a couple of times). We now have the semantics agreed in the generic mm layer together with API improvements so that the architecture code can detect between contiguous and non-contiguous huge PTEs - Initial support for persistent memory on ARM: DC CVAP instruction exposed to user space (HWCAP) and the in-kernel pmem API implemented - raid6 improvements for arm64: faster algorithm for the delta syndrome and implementation of the recovery routines using Neon - FP/SIMD refactoring and removal of support for Neon in interrupt context. This is in preparation for full SVE support - PTE accessors converted from inline asm to cmpxchg so that we can use LSE atomics if available (ARMv8.1) - Perf support for Cortex-A35 and A73 - Non-urgent fixes and cleanups * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (75 commits) arm64: cleanup {COMPAT_,}SET_PERSONALITY() macro arm64: introduce separated bits for mm_context_t flags arm64: hugetlb: Cleanup setup_hugepagesz arm64: Re-enable support for contiguous hugepages arm64: hugetlb: Override set_huge_swap_pte_at() to support contiguous hugepages arm64: hugetlb: Override huge_pte_clear() to support contiguous hugepages arm64: hugetlb: Handle swap entries in huge_pte_offset() for contiguous hugepages arm64: hugetlb: Add break-before-make logic for contiguous entries arm64: hugetlb: Spring clean huge pte accessors arm64: hugetlb: Introduce pte_pgprot helper arm64: hugetlb: set_huge_pte_at Add WARN_ON on !pte_present arm64: kexec: have own crash_smp_send_stop() for crash dump for nonpanic cores arm64: dma-mapping: Mark atomic_pool as __ro_after_init arm64: dma-mapping: Do not pass data to gen_pool_set_algo() arm64: Remove the !CONFIG_ARM64_HW_AFDBM alternative code paths arm64: Ignore hardware dirty bit updates in ptep_set_wrprotect() arm64: Move PTE_RDONLY bit handling out of set_pte_at() kvm: arm64: Convert kvm_set_s2pte_readonly() from inline asm to cmpxchg() arm64: Convert pte handling from inline asm to using (cmp)xchg arm64: neon/efi: Make EFI fpsimd save/restore variables static ...
2017-09-05Merge branch 'for-linus' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: "The first part of the s390 updates for 4.14: - Add machine type 0x3906 for IBM z14 - Add IBM z14 TLB flushing improvements for KVM guests - Exploit the TOD clock epoch extension to provide a continuous TOD clock afer 2042/09/17 - Add NIAI spinlock hints for IBM z14 - Rework the vmcp driver and use CMA for the respone buffer of z/VM CP commands - Drop some s390 specific asm headers and use the generic version - Add block discard for DASD-FBA devices under z/VM - Add average request times to DASD statistics - A few of those constify patches which seem to be in vogue right now - Cleanup and bug fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (50 commits) s390/mm: avoid empty zero pages for KVM guests to avoid postcopy hangs s390/dasd: Add discard support for FBA devices s390/zcrypt: make CPRBX const s390/uaccess: avoid mvcos jump label s390/mm: use generic mm_hooks s390/facilities: fix typo s390/vmcp: simplify vmcp_response_free() s390/topology: Remove the unused parent_node() macro s390/dasd: Change unsigned long long to unsigned long s390/smp: convert cpuhp_setup_state() return code to zero on success s390: fix 'novx' early parameter handling s390/dasd: add average request times to dasd statistics s390/scm: use common completion path s390/pci: log changes to uid checking s390/vmcp: simplify vmcp_ioctl() s390/vmcp: return -ENOTTY for unknown ioctl commands s390/vmcp: split vmcp header file and move to uapi s390/vmcp: make use of contiguous memory allocator s390/cpcmd,vmcp: avoid GFP_DMA allocations s390/vmcp: fix uaccess check and avoid undefined behavior ...
2017-09-05Merge branch 'parisc-4.14-1' of ↵Linus Torvalds1-0/+10
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc updates from Helge Deller: "Major changes include: - Full support of the firmware Page Deallocation Table with MADV_HWPOISON and MADV_SOFT_OFFLINE. A kernel thread scans regularily for new bad memory pages. - Full support for self-extracting kernel. - Added UBSAN support. - Lots of section mismatch fixes across all parisc drivers. - Added examples for %pF and %pS usage in printk-formats.txt" * 'parisc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (28 commits) printk-formats.txt: Add examples for %pF and %pS usage parisc: Fix up devices below a PCI-PCI MegaRAID controller bridge parisc/core: Fix section mismatches parisc/ipmi_si_intf: Fix section mismatches on parisc platform parisc/input/hilkbd: Fix section mismatches parisc/net/lasi_82596: Fix section mismatches parisc/serio: Fix section mismatches in gscps2 and hp_sdc drivers parisc: Fix section mismatches in parisc core drivers parisc/parport_gsc: Fix section mismatches parisc/scsi/lasi700: Fix section mismatches parisc/scsi/zalon: Fix section mismatches parisc/8250_gsc: Fix section mismatches parisc/mux: Fix section mismatches parisc/sticore: Fix section mismatches parisc/harmony: Fix section mismatches parisc: Wire up support for self-extracting kernel parisc: Make existing core files reuseable for bootloader parisc: Add core code for self-extracting kernel parisc: Enable UBSAN support parisc/random: Add machine specific randomness ...
2017-09-04Merge branch 'x86-cache-for-linus' of ↵Linus Torvalds3-38/+292
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cache quality monitoring update from Thomas Gleixner: "This update provides a complete rewrite of the Cache Quality Monitoring (CQM) facility. The existing CQM support was duct taped into perf with a lot of issues and the attempts to fix those turned out to be incomplete and horrible. After lengthy discussions it was decided to integrate the CQM support into the Resource Director Technology (RDT) facility, which is the obvious choise as in hardware CQM is part of RDT. This allowed to add Memory Bandwidth Monitoring support on top. As a result the mechanisms for allocating cache/memory bandwidth and the corresponding monitoring mechanisms are integrated into a single management facility with a consistent user interface" * 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits) x86/intel_rdt: Turn off most RDT features on Skylake x86/intel_rdt: Add command line options for resource director technology x86/intel_rdt: Move special case code for Haswell to a quirk function x86/intel_rdt: Remove redundant ternary operator on return x86/intel_rdt/cqm: Improve limbo list processing x86/intel_rdt/mbm: Fix MBM overflow handler during CPU hotplug x86/intel_rdt: Modify the intel_pqr_state for better performance x86/intel_rdt/cqm: Clear the default RMID during hotcpu x86/intel_rdt: Show bitmask of shareable resource with other executing units x86/intel_rdt/mbm: Handle counter overflow x86/intel_rdt/mbm: Add mbm counter initialization x86/intel_rdt/mbm: Basic counting of MBM events (total and local) x86/intel_rdt/cqm: Add CPU hotplug support x86/intel_rdt/cqm: Add sched_in support x86/intel_rdt: Introduce rdt_enable_key for scheduling x86/intel_rdt/cqm: Add mount,umount support x86/intel_rdt/cqm: Add rmdir support x86/intel_rdt: Separate the ctrl bits from rmdir x86/intel_rdt/cqm: Add mon_data x86/intel_rdt: Prepare for RDT monitor data support ...
2017-09-04Merge branch 'irq-core-for-linus' of ↵Linus Torvalds3-3/+38
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "The interrupt subsystem delivers this time: - Refactoring of the GIC-V3 driver to prepare for the GIC-V4 support - Initial GIC-V4 support - Consolidation of the FSL MSI support - Utilize the effective affinity interface in various ARM irqchip drivers - Yet another interrupt chip driver (UniPhier AIDET) - Bulk conversion of the irq chip driver to use %pOF - The usual small fixes and improvements all over the place" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits) irqchip/ls-scfg-msi: Add MSI affinity support irqchip/ls-scfg-msi: Add LS1043a v1.1 MSI support irqchip/ls-scfg-msi: Add LS1046a MSI support arm64: dts: ls1046a: Add MSI dts node arm64: dts: ls1043a: Share all MSIs arm: dts: ls1021a: Share all MSIs arm64: dts: ls1043a: Fix typo of MSI compatible string arm: dts: ls1021a: Fix typo of MSI compatible string irqchip/ls-scfg-msi: Fix typo of MSI compatible strings irqchip/irq-bcm7120-l2: Use correct I/O accessors for irq_fwd_mask irqchip/mmp: Make mmp_intc_conf const irqchip/gic: Make irq_chip const irqchip/gic-v3: Advertise GICv4 support to KVM irqchip/gic-v4: Enable low-level GICv4 operations irqchip/gic-v4: Add some basic documentation irqchip/gic-v4: Add VLPI configuration interface irqchip/gic-v4: Add VPE command interface irqchip/gic-v4: Add per-VM VPE domain creation irqchip/gic-v3-its: Set implementation defined bit to enable VLPIs irqchip/gic-v3-its: Allow doorbell interrupts to be injected/cleared ...
2017-09-04Merge branch 'timers-core-for-linus' of ↵Linus Torvalds2-41/+60
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "A rather small update for the time(r) subsystem: - A new clocksource driver IMX-TPM - Minor fixes to the alarmtimer facility - Device tree cleanups for Renesas drivers - A new kselftest and fixes for the timer related tests - Conversion of the clocksource drivers to use %pOF - Use the proper helpers to access rlimits in the posix-cpu-timer code" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: alarmtimer: Ensure RTC module is not unloaded clocksource: Convert to using %pOF instead of full_name clocksource/drivers/bcm2835: Remove message for a memory allocation failure devicetree: bindings: Remove deprecated properties devicetree: bindings: Remove unused 32-bit CMT bindings devicetree: bindings: Deprecate property, update example devicetree: bindings: r8a73a4 and R-Car Gen2 CMT bindings devicetree: bindings: R-Car Gen2 CMT0 and CMT1 bindings devicetree: bindings: Remove sh7372 CMT binding clocksource/drivers/imx-tpm: Add imx tpm timer support dt-bindings: timer: Add nxp tpm timer binding doc posix-cpu-timers: Use dedicated helper to access rlimit values alarmtimer: Fix unavailable wake-up source in sysfs timekeeping: Use proper timekeeper for debug code kselftests: timers: set-timer-lat: Add one-shot timer test cases kselftests: timers: set-timer-lat: Tweak reporting when timer fires early kselftests: timers: freq-step: Fix build warning kselftests: timers: freq-step: Define ADJ_SETOFFSET if device has older kernel headers
2017-09-04Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds4-3/+148
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm changes from Ingo Molnar: "PCID support, 5-level paging support, Secure Memory Encryption support The main changes in this cycle are support for three new, complex hardware features of x86 CPUs: - Add 5-level paging support, which is a new hardware feature on upcoming Intel CPUs allowing up to 128 PB of virtual address space and 4 PB of physical RAM space - a 512-fold increase over the old limits. (Supercomputers of the future forecasting hurricanes on an ever warming planet can certainly make good use of more RAM.) Many of the necessary changes went upstream in previous cycles, v4.14 is the first kernel that can enable 5-level paging. This feature is activated via CONFIG_X86_5LEVEL=y - disabled by default. (By Kirill A. Shutemov) - Add 'encrypted memory' support, which is a new hardware feature on upcoming AMD CPUs ('Secure Memory Encryption', SME) allowing system RAM to be encrypted and decrypted (mostly) transparently by the CPU, with a little help from the kernel to transition to/from encrypted RAM. Such RAM should be more secure against various attacks like RAM access via the memory bus and should make the radio signature of memory bus traffic harder to intercept (and decrypt) as well. This feature is activated via CONFIG_AMD_MEM_ENCRYPT=y - disabled by default. (By Tom Lendacky) - Enable PCID optimized TLB flushing on newer Intel CPUs: PCID is a hardware feature that attaches an address space tag to TLB entries and thus allows to skip TLB flushing in many cases, even if we switch mm's. (By Andy Lutomirski) All three of these features were in the works for a long time, and it's coincidence of the three independent development paths that they are all enabled in v4.14 at once" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (65 commits) x86/mm: Enable RCU based page table freeing (CONFIG_HAVE_RCU_TABLE_FREE=y) x86/mm: Use pr_cont() in dump_pagetable() x86/mm: Fix SME encryption stack ptr handling kvm/x86: Avoid clearing the C-bit in rsvd_bits() x86/CPU: Align CR3 defines x86/mm, mm/hwpoison: Clear PRESENT bit for kernel 1:1 mappings of poison pages acpi, x86/mm: Remove encryption mask from ACPI page protection type x86/mm, kexec: Fix memory corruption with SME on successive kexecs x86/mm/pkeys: Fix typo in Documentation/x86/protection-keys.txt x86/mm/dump_pagetables: Speed up page tables dump for CONFIG_KASAN=y x86/mm: Implement PCID based optimization: try to preserve old TLB entries using PCID x86: Enable 5-level paging support via CONFIG_X86_5LEVEL=y x86/mm: Allow userspace have mappings above 47-bit x86/mm: Prepare to expose larger address space to userspace x86/mpx: Do not allow MPX if we have mappings above 47-bit x86/mm: Rename tasksize_32bit/64bit to task_size_32bit/64bit() x86/xen: Redefine XEN_ELFNOTE_INIT_P2M using PUD_SIZE * PTRS_PER_PUD x86/mm/dump_pagetables: Fix printout of p4d level x86/mm/dump_pagetables: Generalize address normalization x86/boot: Fix memremap() related build failure ...
2017-09-04Merge branch 'locking-core-for-linus' of ↵Linus Torvalds6-97/+1211
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: - Add 'cross-release' support to lockdep, which allows APIs like completions, where it's not the 'owner' who releases the lock, to be tracked. It's all activated automatically under CONFIG_PROVE_LOCKING=y. - Clean up (restructure) the x86 atomics op implementation to be more readable, in preparation of KASAN annotations. (Dmitry Vyukov) - Fix static keys (Paolo Bonzini) - Add killable versions of down_read() et al (Kirill Tkhai) - Rework and fix jump_label locking (Marc Zyngier, Paolo Bonzini) - Rework (and fix) tlb_flush_pending() barriers (Peter Zijlstra) - Remove smp_mb__before_spinlock() and convert its usages, introduce smp_mb__after_spinlock() (Peter Zijlstra) * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (56 commits) locking/lockdep/selftests: Fix mixed read-write ABBA tests sched/completion: Avoid unnecessary stack allocation for COMPLETION_INITIALIZER_ONSTACK() acpi/nfit: Fix COMPLETION_INITIALIZER_ONSTACK() abuse locking/pvqspinlock: Relax cmpxchg's to improve performance on some architectures smp: Avoid using two cache lines for struct call_single_data locking/lockdep: Untangle xhlock history save/restore from task independence locking/refcounts, x86/asm: Disable CONFIG_ARCH_HAS_REFCOUNT for the time being futex: Remove duplicated code and fix undefined behaviour Documentation/locking/atomic: Finish the document... locking/lockdep: Fix workqueue crossrelease annotation workqueue/lockdep: 'Fix' flush_work() annotation locking/lockdep/selftests: Add mixed read-write ABBA tests mm, locking/barriers: Clarify tlb_flush_pending() barriers locking/lockdep: Make CONFIG_LOCKDEP_CROSSRELEASE and CONFIG_LOCKDEP_COMPLETIONS truly non-interactive locking/lockdep: Explicitly initialize wq_barrier::done::map locking/lockdep: Rename CONFIG_LOCKDEP_COMPLETE to CONFIG_LOCKDEP_COMPLETIONS locking/lockdep: Reword title of LOCKDEP_CROSSRELEASE config locking/lockdep: Make CONFIG_LOCKDEP_CROSSRELEASE part of CONFIG_PROVE_LOCKING locking/refcounts, x86/asm: Implement fast refcount overflow protection locking/lockdep: Fix the rollback and overwrite detection logic in crossrelease ...
2017-09-04Merge branch 'x86-microcode-for-linus' of ↵Linus Torvalds2-70/+137
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 microcode loading updates from Ingo Molnar: "Update documentation, improve robustness and fix a memory leak" * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode/intel: Improve microcode patches saving flow x86/microcode: Document the three loading methods x86/microcode/AMD: Free unneeded patch before exit from update_cache()
2017-09-04Merge branch 'x86-asm-for-linus' of ↵Linus Torvalds1-0/+179
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 asm updates from Ingo Molnar: - Introduce the ORC unwinder, which can be enabled via CONFIG_ORC_UNWINDER=y. The ORC unwinder is a lightweight, Linux kernel specific debuginfo implementation, which aims to be DWARF done right for unwinding. Objtool is used to generate the ORC unwinder tables during build, so the data format is flexible and kernel internal: there's no dependency on debuginfo created by an external toolchain. The ORC unwinder is almost two orders of magnitude faster than the (out of tree) DWARF unwinder - which is important for perf call graph profiling. It is also significantly simpler and is coded defensively: there has not been a single ORC related kernel crash so far, even with early versions. (knock on wood!) But the main advantage is that enabling the ORC unwinder allows CONFIG_FRAME_POINTERS to be turned off - which speeds up the kernel measurably: With frame pointers disabled, GCC does not have to add frame pointer instrumentation code to every function in the kernel. The kernel's .text size decreases by about 3.2%, resulting in better cache utilization and fewer instructions executed, resulting in a broad kernel-wide speedup. Average speedup of system calls should be roughly in the 1-3% range - measurements by Mel Gorman [1] have shown a speedup of 5-10% for some function execution intense workloads. The main cost of the unwinder is that the unwinder data has to be stored in RAM: the memory cost is 2-4MB of RAM, depending on kernel config - which is a modest cost on modern x86 systems. Given how young the ORC unwinder code is it's not enabled by default - but given the performance advantages the plan is to eventually make it the default unwinder on x86. See Documentation/x86/orc-unwinder.txt for more details. - Remove lguest support: its intended role was that of a temporary proof of concept for virtualization, plus its removal will enable the reduction (removal) of the paravirt API as well, so Rusty agreed to its removal. (Juergen Gross) - Clean up and fix FSGS related functionality (Andy Lutomirski) - Clean up IO access APIs (Andy Shevchenko) - Enhance the symbol namespace (Jiri Slaby) * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (47 commits) objtool: Handle GCC stack pointer adjustment bug x86/entry/64: Use ENTRY() instead of ALIGN+GLOBAL for stub32_clone() x86/fpu/math-emu: Add ENDPROC to functions x86/boot/64: Extract efi_pe_entry() from startup_64() x86/boot/32: Extract efi_pe_entry() from startup_32() x86/lguest: Remove lguest support x86/paravirt/xen: Remove xen_patch() objtool: Fix objtool fallthrough detection with function padding x86/xen/64: Fix the reported SS and CS in SYSCALL objtool: Track DRAP separately from callee-saved registers objtool: Fix validate_branch() return codes x86: Clarify/fix no-op barriers for text_poke_bp() x86/switch_to/64: Rewrite FS/GS switching yet again to fix AMD CPUs selftests/x86/fsgsbase: Test selectors 1, 2, and 3 x86/fsgsbase/64: Report FSBASE and GSBASE correctly in core dumps x86/fsgsbase/64: Fully initialize FS and GS state in start_thread_common x86/asm: Fix UNWIND_HINT_REGS macro for older binutils x86/asm/32: Fix regs_get_register() on segment registers x86/xen/64: Rearrange the SYSCALL entries x86/asm/32: Remove a bunch of '& 0xffff' from pt_regs segment reads ...
2017-09-04Merge branch 'perf-core-for-linus' of ↵Linus Torvalds1-1/+12
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "Kernel side changes: - Add branch type profiling/tracing support. (Jin Yao) - Add the PERF_SAMPLE_PHYS_ADDR ABI to allow the tracing/profiling of physical memory addresses, where the PMU supports it. (Kan Liang) - Export some PMU capability details in the new /sys/bus/event_source/devices/cpu/caps/ sysfs directory. (Andi Kleen) - Aux data fixes and updates (Will Deacon) - kprobes fixes and updates (Masami Hiramatsu) - AMD uncore PMU driver fixes and updates (Janakarajan Natarajan) On the tooling side, here's a (limited!) list of highlights - there were many other changes that I could not list, see the shortlog and git history for details: UI improvements: - Implement a visual marker for fused x86 instructions in the annotate TUI browser, available now in 'perf report', more work needed to have it available as well in 'perf top' (Jin Yao) Further explanation from one of Jin's patches: │ ┌──cmpl $0x0,argp_program_version_hook 81.93 │ ├──je 20 │ │ lock cmpxchg %esi,0x38a9a4(%rip) │ │↓ jne 29 │ │↓ jmp 43 11.47 │20:└─→cmpxch %esi,0x38a999(%rip) That means the cmpl+je is a fused instruction pair and they should be considered together. - Record the branch type and then show statistics and info about in callchain entries (Jin Yao) Example from one of Jin's patches: # perf record -g -j any,save_type # perf report --branch-history --stdio --no-children 38.50% div.c:45 [.] main div | ---main div.c:42 (RET CROSS_2M cycles:2) compute_flag div.c:28 (cycles:2) compute_flag div.c:27 (RET CROSS_2M cycles:1) rand rand.c:28 (cycles:1) rand rand.c:28 (RET CROSS_2M cycles:1) __random random.c:298 (cycles:1) __random random.c:297 (COND_BWD CROSS_2M cycles:1) __random random.c:295 (cycles:1) __random random.c:295 (COND_BWD CROSS_2M cycles:1) __random random.c:295 (cycles:1) __random random.c:295 (RET CROSS_2M cycles:9) namespaces support: - Add initial support for namespaces, using setns to access files in namespaces, grabbing their build-ids, etc. (Krister Johansen) perf trace enhancements: - Beautify pkey_{alloc,free,mprotect} arguments in 'perf trace' (Arnaldo Carvalho de Melo) - Add initial 'clone' syscall args beautifier in 'perf trace' (Arnaldo Carvalho de Melo) - Ignore 'fd' and 'offset' args for MAP_ANONYMOUS in 'perf trace' (Arnaldo Carvalho de Melo) - Beautifiers for the 'cmd' arg of several ioctl types, including: sound, DRM, KVM, vhost virtio and perf_events. (Arnaldo Carvalho de Melo) - Add PERF_SAMPLE_CALLCHAIN and PERF_RECORD_MMAP[2] to 'perf data' CTF conversion, allowing CTF trace visualization tools to show callchains and to resolve symbols (Geneviève Bastien) - Beautify the fcntl syscall, which is an interesting one in the sense that infrastructure had to be put in place to change the formatters of some arguments according to the value in a previous one, i.e. cmd dictates how arg and the syscall return will be formatted. (Arnaldo Carvalho de Melo perf stat enhancements: - Use group read for event groups in 'perf stat', reducing overhead when groups are defined in the event specification, i.e. when using {} to enclose a list of events, asking them to be read at the same time, e.g.: "perf stat -e '{cycles,instructions}'" (Jiri Olsa) pipe mode improvements: - Process tracing data in 'perf annotate' pipe mode (David Carrillo-Cisneros) - Add header record types to pipe-mode, now this command: $ perf record -o - -e cycles sleep 1 | perf report --stdio --header Will show the same as in non-pipe mode, i.e. involving a perf.data file (David Carrillo-Cisneros) Vendor specific hardware event support updates/enhancements: - Update POWER9 vendor events tables (Sukadev Bhattiprolu) - Add POWER9 PMU events Sukadev (Bhattiprolu) - Support additional POWER8+ PVR in PMU mapfile (Shriya) - Add Skylake server uncore JSON vendor events (Andi Kleen) - Support exporting Intel PT data to sqlite3 with python perf scripts, this is in addition to the postgresql support that was already there (Adrian Hunter)" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (253 commits) perf symbols: Fix plt entry calculation for ARM and AARCH64 perf probe: Fix kprobe blacklist checking condition perf/x86: Fix caps/ for !Intel perf/core, x86: Add PERF_SAMPLE_PHYS_ADDR perf/core, pt, bts: Get rid of itrace_started perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments tools headers: Sync cpu features kernel ABI headers with tooling headers perf tools: Pass full path of FEATURES_DUMP perf tools: Robustify detection of clang binary tools lib: Allow external definition of CC, AR and LD perf tools: Allow external definition of flex and bison binary names tools build tests: Don't hardcode gcc name perf report: Group stat values on global event id perf values: Zero value buffers perf values: Fix allocation check perf values: Fix thread index bug perf report: Add dump_read function perf record: Set read_format for inherit_stat perf c2c: Fix remote HITM detection for Skylake perf tools: Fix static build with newer toolchains ...
2017-09-04Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds10-109/+339
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnad: "The main RCU related changes in this cycle were: - Removal of spin_unlock_wait() - SRCU updates - RCU torture-test updates - RCU Documentation updates - Extend the sys_membarrier() ABI with the MEMBARRIER_CMD_PRIVATE_EXPEDITED variant - Miscellaneous RCU fixes - CPU-hotplug fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (63 commits) arch: Remove spin_unlock_wait() arch-specific definitions locking: Remove spin_unlock_wait() generic definitions drivers/ata: Replace spin_unlock_wait() with lock/unlock pair ipc: Replace spin_unlock_wait() with lock/unlock pair exit: Replace spin_unlock_wait() with lock/unlock pair completion: Replace spin_unlock_wait() with lock/unlock pair doc: Set down RCU's scheduling-clock-interrupt needs doc: No longer allowed to use rcu_dereference on non-pointers doc: Add RCU files to docbook-generation files doc: Update memory-barriers.txt for read-to-write dependencies doc: Update RCU documentation membarrier: Provide expedited private command rcu: Remove exports from rcu_idle_exit() and rcu_idle_enter() rcu: Add warning to rcu_idle_enter() for irqs enabled rcu: Make rcu_idle_enter() rely on callers disabling irqs rcu: Add assertions verifying blocked-tasks list rcu/tracing: Set disable_rcu_irq_enter on rcu_eqs_exit() rcu: Add TPS() protection for _rcu_barrier_trace strings rcu: Use idle versions of swait to make idle-hack clear swait: Add idle variants which don't contribute to load average ...
2017-09-04Merge branch 'linus' into locking/core, to fix up conflictsIngo Molnar58-666/+905
Conflicts: mm/page_alloc.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-09-03Merge branch 'docs-next' of git://git.lwn.net/linuxLinus Torvalds34-493/+454
Pull documentation updates from Jonathan Corbet: "After a fair amount of churn in the last couple of cycles, docs are taking it easier this time around. Lots of fixes and some new documentation, but nothing all that radical. Perhaps the most interesting change for many is the scripts/sphinx-pre-install tool from Mauro; it will tell you exactly which packages you need to install to get a working docs toolchain on your system. There are two little patches reaching outside of Documentation/; both just tweak kerneldoc comments to eliminate warnings and fix some dangling doc pointers" * 'docs-next' of git://git.lwn.net/linux: (52 commits) Documentation/sphinx: fix kernel-doc decode for non-utf-8 locale genalloc: Fix an incorrect kerneldoc comment doc: Add documentation for the genalloc subsystem assoc_array: fix path to assoc_array documentation kernel-doc parser mishandles declarations split into lines docs: ReSTify table of contents in core.rst docs: process: drop git snapshots from applying-patches.rst Documentation:input: fix typo swap: Remove obsolete sentence sphinx.rst: Allow Sphinx version 1.6 at the docs docs-rst: fix verbatim font size on tables Documentation: stable-kernel-rules: fix broken git urls rtmutex: update rt-mutex rtmutex: update rt-mutex-design docs: fix minimal sphinx version in conf.py docs: fix nested numbering in the TOC NVMEM documentation fix: A minor typo docs-rst: pdf: use same vertical margin on all Sphinx versions doc: Makefile: if sphinx is not found, run a check script docs: Fix paths in security/keys ...
2017-09-03Merge tag 'hwmon-for-linus-v4.14' of ↵Linus Torvalds6-2/+105
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: - new drivers: - Lantiq CPU temperature sensor - IBM CFF power supply - TPS53679 PMBus driver - new support: - LM5066I (lm25066 PMBus driver) - Intel VID protocol VR13 (PMBus drivers) - CAT34TS02C, GT30TS00, GT34TS02, and CAT34TS04 (jc42 driver) - cleanup and minor improvements in several drivers * tag 'hwmon-for-linus-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (36 commits) hwmon: (ltq-cputemp) add cpu temp sensor driver hwmon: (ltq-cputemp) add devicetree bindings documentation hwmon: (pmbus) Add support for Texas Instruments tps53679 device hwmon: (asc7621) make several arrays static const hwmon: (pmbus/lm25066) Add support for TI LM5066I hwmon: (pmbus/lm25066) Offset coefficient depends on CL hwmon: (pmbus) Add support for Intel VID protocol VR13 Documentation: hwmon: Document the IBM CFF power supply hwmon: (pmbus) Add IBM Common Form Factor (CFF) power supply driver dt-bindings: hwmon: Document the IBM CCF power supply version 1 hwmon: (ftsteutates) constify i2c_device_id hwmon: da9052: Add support for TSI channel mfd: da9052: Make touchscreen registration optional hwmon: da9052: Replace S_IRUGO with 0444 mfd: da9052: Add register details for TSI hwmon: (aspeed-pwm) add THERMAL dependency hwmon: (pmbus) Add debugfs for status registers hwmon: (aspeed-pwm-tacho) cooling device support. Documentation: dt-bindings: aspeed-pwm-tacho cooling device. hwmon: (pmbus): Add generic alarm bit for iin and pin ...
2017-09-03Merge tag 'for-linus-ioctl' of ↵Linus Torvalds1-0/+64
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma updates from Doug Ledford: "This is a big pull request. Of note is that I'm sending you the new ioctl API for the rdma subsystem. We put it up on linux-api@, but didn't get much response. The API is complex, but it solves two different problems in one go: 1) The bi-directional nature of the RDMA file write calls, which created the security hole we had to handle (and for which the fix is now causing problems for systems in production, we were a bit over zealous in the fix and the ability to open a device, then fork, then create new queue pairs on the device and use them is broken). 2) The bloat caused by different vendors implementing extensions to the base verbs API. Each vendor's hardware is slightly different, and the hardware might be suitable for one extension but not another. By the time we add generic extensions for all the different ways that the different hardware can offload things, the API becomes bloated. Things like our completion structs have started to exceed a cache line in size because of all the elements needed to support this. That in turn shows up heavily in the performance graphs with a noticable drop in performance on 100Gigabit links as our completion structs go from occupying one cache line to 1+. This API makes things like the completion structs modular in a very similar way to netlink so that your structs can only include the items needed for the offloads/features you are actually using on a given queue pair. In that way we support everything, but only use what we need, and our structs stay smaller. The ioctl API is better explained by the posting on linux-api@ than I can explain it here, so I'll just leave it at that. The rest of the pull request is typical stuff. Updates for 4.14 kernel merge window - Lots of hfi1 driver updates (mixed with a few qib and core updates as well) - rxe updates - various mlx updates - Set default roce type to RoCEv2 - Several larger fixes for bnxt_re that were too big for -rc - Several larger fixes for qedr that, likewise, were too big for -rc - Misc core changes - Make the hns_roce driver compilable on arches other than aarch64 so we can more easily debug build issues related to it - Add rdma-netlink infrastructure updates - Add automatic IRQ affinity infrastructure - Add 32bit lid support - Lots of misc fixes across the subsystem from random people - Autoloading of RDMA netlink modules - PCI pool cleanups from Romain Perier - mlx5 driver feature additions and fixes - Hardware tag matchine feature - Fix sleeping in atomic when resolving roce ah - Add experimental ioctl interface as posted to linux-api@" * tag 'for-linus-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (328 commits) IB/core: Expose ioctl interface through experimental Kconfig IB/core: Assign root to all drivers IB/core: Add completion queue (cq) object actions IB/core: Add legacy driver's user-data IB/core: Export ioctl enum types to user-space IB/core: Explicitly destroy an object while keeping uobject IB/core: Add macros for declaring methods and attributes IB/core: Add uverbs merge trees functionality IB/core: Add DEVICE object and root tree structure IB/core: Declare an object instead of declaring only type attributes IB/core: Add new ioctl interface RDMA/vmw_pvrdma: Fix a signedness RDMA/vmw_pvrdma: Report network header type in WC IB/core: Add might_sleep() annotation to ib_init_ah_from_wc() IB/cm: Fix sleeping in atomic when RoCE is used IB/core: Add support to finalize objects in one transaction IB/core: Add a generic way to execute an operation on a uobject Documentation: Hardware tag matching IB/mlx5: Support IB_SRQT_TM net/mlx5: Add XRQ support ...
2017-09-03Merge tag 'drm-for-v4.14' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds16-87/+282
Pull drm updates from Dave Airlie: "This is the main drm pull request for 4.14 merge window. I'm sending this early, as my continuing journey into fatherhood is occurring really soon now, I'm going to be mostly useless for the next couple of weeks, though I may be able to read email, I doubt I'll be doing much patch applications or git sending. If anything urgent pops up I've asked Daniel/Jani/Alex/Sean to try and direct stuff towards you. Outside drm changes: Some rcar-du updates that touch the V4L tree, all acks should be in place. It adds one export to the radix tree code for new i915 use case. There are some minor AGP cleanups (don't see that too often). Changes to the vbox driver in staging to avoid breaking compilation. Summary: core: - Atomic helper fixes - Atomic UAPI fixes - Add YCBCR 4:2:0 support - Drop set_busid hook - Refactor fb_helper locking - Remove a bunch of internal APIs - Add a bunch of better default handlers - Format modifier/blob plane property added - More internal header refactoring - Make more internal API names consistent - Enhanced syncobj APIs (wait/signal/reset/create signalled) bridge: - Add Synopsys Designware MIPI DSI host bridge driver tiny: - Add Pervasive Displays RePaper displays - Add support for LEGO MINDSTORMS EV3 LCD i915: - Lots of GEN10/CNL support patches - drm syncobj support - Skylake+ watermark refactoring - GVT vGPU 48-bit ppgtt support - GVT performance improvements - NOA change ioctl - CCS (color compression) scanout support - GPU reset improvements amdgpu: - Initial hugepage support - BO migration logic rework - Vega10 improvements - Powerplay fixes - Stop reprogramming the MC - Fixes for ACP audio on stoney - SR-IOV fixes/improvements - Command submission overhead improvements amdkfd: - Non-dGPU upstreaming patches - Scratch VA ioctl - Image tiling modes - Update PM4 headers for new firmware - Drop all BUG_ONs. nouveau: - GP108 modesetting support. - Disable MSI on big endian. vmwgfx: - Add fence fd support. msm: - Runtime PM improvements exynos: - NV12MT support - Refactor KMS drivers imx-drm: - Lock scanout channel to improve memory bw - Cleanups etnaviv: - GEM object population fixes tegra: - Prep work for Tegra186 support - PRIME mmap support sunxi: - HDMI support improvements - HDMI CEC support omapdrm: - HDMI hotplug IRQ support - Big driver cleanup - OMAP5 DSI support rcar-du: - vblank fixes - VSP1 updates arcgpu: - Minor fixes stm: - Add STM32 DSI controller driver dw_hdmi: - Add support for Rockchip RK3399 - HDMI CEC support atmel-hlcdc: - Add 8-bit color support vc4: - Atomic fixes - New ioctl to attach a label to a buffer object - HDMI CEC support - Allow userspace to dictate rendering order on submit ioctl" * tag 'drm-for-v4.14' of git://people.freedesktop.org/~airlied/linux: (1074 commits) drm/syncobj: Add a signal ioctl (v3) drm/syncobj: Add a reset ioctl (v3) drm/syncobj: Add a syncobj_array_find helper drm/syncobj: Allow wait for submit and signal behavior (v5) drm/syncobj: Add a CREATE_SIGNALED flag drm/syncobj: Add a callback mechanism for replace_fence (v3) drm/syncobj: add sync obj wait interface. (v8) i915: Use drm_syncobj_fence_get drm/syncobj: Add a race-free drm_syncobj_fence_get helper (v2) drm/syncobj: Rename fence_get to find_fence drm: kirin: Add mode_valid logic to avoid mode clocks we can't generate drm/vmwgfx: Bump the version for fence FD support drm/vmwgfx: Add export fence to file descriptor support drm/vmwgfx: Add support for imported Fence File Descriptor drm/vmwgfx: Prepare to support fence fd drm/vmwgfx: Fix incorrect command header offset at restart drm/vmwgfx: Support the NOP_ERROR command drm/vmwgfx: Restart command buffers after errors drm/vmwgfx: Move irq bottom half processing to threads drm/vmwgfx: Don't use drm_irq_[un]install ...
2017-09-01Merge tag 'armsoc-fixes' of ↵Linus Torvalds1-84/+0
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "A couple of late-arriving fixes before final 4.13: - A few reverts of DT bindings on Allwinner for their ethernet driver. Discussion didn't converge, and since bindings are considered ABI it makes sense to revert instead of having to support two bindings long-term. - A fix to enumerate GPIOs properly on Marvell Armada AP806" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm64: dts: marvell: fix number of GPIOs in Armada AP806 description arm: dts: sunxi: Revert EMAC changes arm64: dts: allwinner: Revert EMAC changes dt-bindings: net: Revert sun8i dwmac binding
2017-09-01hwmon: (ltq-cputemp) add devicetree bindings documentationFlorian Eckert1-0/+10
Document the devicetree bindings for the ltq-cputemp Signed-off-by: Florian Eckert <fe@dev.tdt.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-08-31Documentation/sphinx: fix kernel-doc decode for non-utf-8 localeJani Nikula1-5/+3
On python3, Popen() universal_newlines=True converts the subprocess stdout to unicode text using a codec based on user preferences. Given LANG indicating ascii and utf-8 stdout from the subprocess, you'd get: WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno ../drivers/media/dvb-core/demux.h' processing failed with: 'ascii' codec can't decode byte 0xe2 in position 6368: ordinal not in range(128) Fix this by dropping universal_newlines=True and replacing the implicit LANG specific decode with an explicit utf-8 decode. This also gets rid of the annoying conditional code for python 2 vs. 3. Fixes: ba3501859354 ("Documentation/sphinx: fix kernel-doc extension on python3") Reference: http://mid.mail-archive.com/54c23e8e-89c0-5cea-0dcc-e938952c5642@infradead.org Reported-and-tested-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-08-31Merge tag 'irqchip-4.14' of ↵Thomas Gleixner2-3/+37
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core Pull irqchip updates for 4.14 from Marc Zyngier: - irqchip-specific part of the monster GICv4 series - new UniPhier AIDET irqchip driver - new variants of some Freescale MSI widget - blanket removal of of_node->full_name in printk - random collection of fixes
2017-08-31dt-bindings: mt8173-mtu3: add generic compatible and rename fileChunfeng Yun1-1/+5
The mt8173-mtu3.txt actually holds the bindings for all mediatek SoCs with usb3 DRD IP, so add a generic compatible and change the name to mediatek,mtu3.txt. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31dt-bindings: mt8173-xhci: add generic compatible and rename fileChunfeng Yun2-4/+12
The mt8173-xhci.txt actually holds the bindings for all mediatek SoCs with xHCI controller, so add a generic compatible and change the name to mediatek,mtk-xhci.txt to reflect that. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-31irqchip/ls-scfg-msi: Add LS1043a v1.1 MSI supportMinghuan Lian1-0/+1
A MSI controller of LS1043a v1.0 only includes one MSIR and is assigned one GIC interrupt. In order to support affinity, LS1043a v1.1 MSI is assigned 4 MSIRs and 4 GIC interrupts. But the MSIR has the different offset and only supports 8 MSIs. The bits between variable bit_start and bit_end in structure ls_scfg_msir are used to show 8 MSI interrupts. msir_irqs and msir_base are added to describe the difference of MSI between LS1043a v1.1 and other SoCs. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-08-31arm64: dts: ls1046a: Add MSI dts nodeMinghuan Lian1-0/+1
LS1046a includes 3 MSI controllers. Each controller supports 128 interrupts. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-08-31irqchip/ls-scfg-msi: Fix typo of MSI compatible stringsMinghuan Lian1-3/+3
The patch is to fix typo of the Layerscape SCFG MSI dts compatible strings. "1" is replaced by "l". Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-08-30doc: Add documentation for the genalloc subsystemJonathan Corbet2-0/+145
Genalloc/genpool has kerneldoc comments, but nothing has ever been pulled into the docs themselves. Here's a first attempt, repurposed from an article I wrote at https://lwn.net/Articles/729653/. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-08-30docs: ReSTify table of contents in core.rstJosh Holland1-11/+1
Sphinx will now generate the table of contents automatically, which avoids having the ToC getting out of sync with the rest of the document. Signed-off-by: Josh Holland <anowlcalledjosh@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-08-30docs: process: drop git snapshots from applying-patches.rstRandy Dunlap1-42/+1
Drop all references to git daily snapshots of Linux mainline git tree since they are no longer generated. Drop the "Last update" info since 'git log' is a better source of that info and since the Last update date is not being updated. Yes, I read that this file is obsolete, but it still has some useful information in it. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-08-30Documentation:input: fix typoJohn de la Garza1-1/+1
Signed-off-by: John de la Garza <john@jjdev.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-08-30hwmon: (pmbus/lm25066) Add support for TI LM5066IXo Wang1-2/+7
The TI LM5066I hotswap controller is a more accurate version of the LM5066 device already supported. It has different measurement conversion coefficients than the LM5066, so it needs to be recognized as a different device. Signed-off-by: Xo Wang <xow@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-08-29Merge tag 'sunxi-fixes-for-4.13-3' of ↵Olof Johansson1-84/+0
https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes Allwinner fixes for 4.13, take 3 This is a revert of the EMAC bindings. The discussion has not settled down yet on a proper representation of the PHY, and therefore we cannot commit to a binding yet * tag 'sunxi-fixes-for-4.13-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: arm: dts: sunxi: Revert EMAC changes arm64: dts: allwinner: Revert EMAC changes dt-bindings: net: Revert sun8i dwmac binding Signed-off-by: Olof Johansson <olof@lixom.net>
2017-08-29Documentation: hwmon: Document the IBM CFF power supplyEdward A. James1-0/+54
Signed-off-by: Edward A. James <eajames@us.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-08-29dt-bindings: hwmon: Document the IBM CCF power supply version 1Edward A. James1-0/+21
Signed-off-by: Edward A. James <eajames@us.ibm.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-08-29Documentation: Hardware tag matchingArtemy Kovalyov1-0/+64
Add document providing definitions of terms and core explanations for tag matching (TM) protocols, eager and rendezvous, TM application header, tag list manipulations and matching process. Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-29devicetree: bindings: Remove deprecated propertiesMagnus Damm1-4/+0
The deprecated DT properties are part of the GIT history, no need to keep them around any longer. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-08-29devicetree: bindings: Remove unused 32-bit CMT bindingsMagnus Damm1-16/+0
Remove the 32-bit CMT compat strings to reduce maintenance burden. It should be fine to break DT compatibility because the 32-bit CMT DT binding was never part of any upstream DTS file. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-08-29devicetree: bindings: Deprecate property, update exampleMagnus Damm1-7/+17
Deprecate "renesas,channels-mask" and update the r8a7790 CMT example. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-08-29devicetree: bindings: r8a73a4 and R-Car Gen2 CMT bindingsMagnus Damm1-10/+14
Update SoC-specific bindings for r8a73a4 and R-Car Gen2 CMT0 and CMT1. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-08-29devicetree: bindings: R-Car Gen2 CMT0 and CMT1 bindingsMagnus Damm1-0/+3
Add documentation for new separate CMT0 and CMT1 DT compatible strings for R-Car Gen2. These compat strings allow us to enable CMT1-specific features in the driver. The old compat strings will be deprecated in the not so distant future. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-08-29devicetree: bindings: Remove sh7372 CMT bindingMagnus Damm1-9/+3
Remove the sh7372 CMT compat string to reduce maintenance burden. It should be fine to break DT compatibility because: 1) The sh7372 SoC support has been removed from upstream 2) The sh7372 CMT DT binding was never part of upstream DTS 3) The CMT driver never matches on the sh7372 binding Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-08-29dt-bindings: timer: Add nxp tpm timer binding docDong Aisheng1-0/+28
Adding NXP Low Power Timer/Pulse Width Modulation Module (TPM) binding doc. Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Bai Ping <ping.bai@nxp.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-08-28dt-bindings: serial: 8250: Add MediaTek BTIF controller bindingsSean Wang1-0/+2
Document the devicetree bindings in 8250.txt for MediaTek BTIF controller which could be found on MT7622 and MT7623 SoC. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-28dt-bindings: serial: sh-sci: Add support for r8a77995 (H)SCIFGeert Uytterhoeven1-0/+2
Document support for the (H)SCIF serial ports in the Renesas R-Car D3 (r8a77995) SoC. No driver update is needed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-28usb: misc: lvstest: add entry to place port in compliance modeJack Pham1-0/+13
Add support for the SuperSpeed Link Layer test case TD.7.34 which requires the operator to place the port into compliance mode, and to subsequently bring it out via reset. Historically according to the (now deprecated) USB 3.0 specification a SuperSpeed host downstream port would automatically transition to Compliance mode from the Polling state if LFPS polling times out. However the language in USB 3.1 as well as xHCI 1.1 states it may be required to explicitly enable this transition. For such hosts this is done by sending a SET_FEATURE(PORT_LINK_STATE) with the state set to Compliance to the root hub port. Similar to the other supported commands, to do this via sysfs: echo > /sys/bus/usb/devices/2-0\:1.0/enable_compliance According to xHCI 1.1 section 4.19.1.2.4.1, this enables the transition to compliance mode upon LFPS timeout. Note that this can only be issued when the port is in disconnected state. And in order to disable this behavior on subsequent transitions, a warm reset should be issued. So add another entry to do that: echo > /sys/bus/usb/devices/2-0\:1.0/warm_reset In general these attributes can also be useful for other USB SuperSpeed compliance tests such as electrical and eye diagram testing which require CPn patterns to be transmitted. Signed-off-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-28dt-bindings: net: Revert sun8i dwmac bindingMaxime Ripard1-84/+0
This binding still doesn't please everyone, and we're getting far too close from the release to allow it to reach a stable version. Let's remove it until the discussion settles down. Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-08-26swap: Remove obsolete sentenceNikolay Borisov1-3/+1
Currently there are no ->swap_{in,out} method in address_space_operations sructure definition, so the statement that anything is going to be proxied through them is wrong. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-08-26sphinx.rst: Allow Sphinx version 1.6 at the docsMauro Carvalho Chehab1-3/+1
Now that the PDF building issues with Sphinx 1.6 got fixed, update the documentation and scripts accordingly. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>