1. 12 4月, 2014 1 次提交
    • H
      x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels · b3b42ac2
      H. Peter Anvin 提交于
      The IRET instruction, when returning to a 16-bit segment, only
      restores the bottom 16 bits of the user space stack pointer.  We have
      a software workaround for that ("espfix") for the 32-bit kernel, but
      it relies on a nonzero stack segment base which is not available in
      32-bit mode.
      
      Since 16-bit support is somewhat crippled anyway on a 64-bit kernel
      (no V86 mode), and most (if not quite all) 64-bit processors support
      virtualization for the users who really need it, simply reject
      attempts at creating a 16-bit segment when running on top of a 64-bit
      kernel.
      
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
      Link: http://lkml.kernel.org/n/tip-kicdm89kzw9lldryb1br9od0@git.kernel.org
      Cc: <stable@vger.kernel.org>
      b3b42ac2
  2. 11 4月, 2014 4 次提交
  3. 02 4月, 2014 11 次提交
    • K
      x86/platform/hyperv: Handle VMBUS driver being a module · f704a7d7
      K. Y. Srinivasan 提交于
      Hyper-V VMBUS driver can be a module; handle this case
      correctly. Please apply.
      Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
      Cc: olaf@aepfle.de
      Cc: apw@canonical.com
      Cc: jasowang@redhat.com
      Link: http://lkml.kernel.org/r/1396421502-23222-1-git-send-email-kys@microsoft.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      f704a7d7
    • I
      Merge branch 'linus' into x86/urgent · b8764fe6
      Ingo Molnar 提交于
      Pick up Linus's latest, to fix a bug.
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      b8764fe6
    • L
      Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 683b6c6f
      Linus Torvalds 提交于
      Pull irq code updates from Thomas Gleixner:
       "The irq department proudly presents:
      
         - Another tree wide sweep of irq infrastructure abuse.  Clear winner
           of the trainwreck engineering contest was:
               #include "../../../kernel/irq/settings.h"
      
         - Tree wide update of irq_set_affinity() callbacks which miss a cpu
           online check when picking a single cpu out of the affinity mask.
      
         - Tree wide consolidation of interrupt statistics.
      
         - Updates to the threaded interrupt infrastructure to allow explicit
           wakeup of the interrupt thread and a variant of synchronize_irq()
           which synchronizes only the hard interrupt handler.  Both are
           needed to replace the homebrewn thread handling in the mmc/sdhci
           code.
      
         - New irq chip callbacks to allow proper support for GPIO based irqs.
           The GPIO based interrupts need to request/release GPIO resources
           from request/free_irq.
      
         - A few new ARM interrupt chips.  No revolutionary new hardware, just
           differently wreckaged variations of the scheme.
      
         - Small improvments, cleanups and updates all over the place"
      
      I was hoping that that trainwreck engineering contest was a April Fools'
      joke.  But no.
      
      * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (68 commits)
        irqchip: sun7i/sun6i: Disable NMI before registering the handler
        ARM: sun7i/sun6i: dts: Fix IRQ number for sun6i NMI controller
        ARM: sun7i/sun6i: irqchip: Update the documentation
        ARM: sun7i/sun6i: dts: Add NMI irqchip support
        ARM: sun7i/sun6i: irqchip: Add irqchip driver for NMI controller
        genirq: Export symbol no_action()
        arm: omap: Fix typo in ams-delta-fiq.c
        m68k: atari: Fix the last kernel_stat.h fallout
        irqchip: sun4i: Simplify sun4i_irq_ack
        irqchip: sun4i: Use handle_fasteoi_irq for all interrupts
        genirq: procfs: Make smp_affinity values go+r
        softirq: Add linux/irq.h to make it compile again
        m68k: amiga: Add linux/irq.h to make it compile again
        irqchip: sun4i: Don't ack IRQs > 0, fix acking of IRQ 0
        irqchip: sun4i: Fix a comment about mask register initialization
        irqchip: sun4i: Fix irq 0 not working
        genirq: Add a new IRQCHIP_EOI_THREADED flag
        genirq: Document IRQCHIP_ONESHOT_SAFE flag
        ARM: sunxi: dt: Convert to the new irq controller compatibles
        irqchip: sunxi: Change compatibles
        ...
      683b6c6f
    • L
      Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 1ead6581
      Linus Torvalds 提交于
      Pull timer changes from Thomas Gleixner:
       "This assorted collection provides:
      
         - A new timer based timer broadcast feature for systems which do not
           provide a global accessible timer device.  That allows those
           systems to put CPUs into deep idle states where the per cpu timer
           device stops.
      
         - A few NOHZ_FULL related improvements to the timer wheel
      
         - The usual updates to timer devices found in ARM SoCs
      
         - Small improvements and updates all over the place"
      
      * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
        tick: Remove code duplication in tick_handle_periodic()
        tick: Fix spelling mistake in tick_handle_periodic()
        x86: hpet: Use proper destructor for delayed work
        workqueue: Provide destroy_delayed_work_on_stack()
        clocksource: CMT, MTU2, TMU and STI should depend on GENERIC_CLOCKEVENTS
        timer: Remove code redundancy while calling get_nohz_timer_target()
        hrtimer: Rearrange comments in the order struct members are declared
        timer: Use variable head instead of &work_list in __run_timers()
        clocksource: exynos_mct: silence a static checker warning
        arm: zynq: Add support for cpufreq
        arm: zynq: Don't use arm_global_timer with cpufreq
        clocksource/cadence_ttc: Overhaul clocksource frequency adjustment
        clocksource/cadence_ttc: Call clockevents_update_freq() with IRQs enabled
        clocksource: Add Kconfig entries for CMT, MTU2, TMU and STI
        sh: Remove Kconfig entries for TMU, CMT and MTU2
        ARM: shmobile: Remove CMT, TMU and STI Kconfig entries
        clocksource: armada-370-xp: Use atomic access for shared registers
        clocksource: orion: Use atomic access for shared registers
        clocksource: timer-keystone: Delete unnecessary variable
        clocksource: timer-keystone: introduce clocksource driver for Keystone
        ...
      1ead6581
    • L
      Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b6d739e9
      Linus Torvalds 提交于
      Pull x86 iommu quirk fix from Thomas Gleixner:
       "A quirk for the iommu quirk to include silicon which was assumed not
        to be out in the wild.
      
        This time with the correct logic applied"
      
      * 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86: Adjust irq remapping quirk for older revisions of 5500/5520 chipsets
      b6d739e9
    • L
      Merge branch 'x86-threadinfo-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 99f7b025
      Linus Torvalds 提交于
      Pull x86 threadinfo changes from Ingo Molnar:
       "The main change here is the consolidation/unification of 32 and 64 bit
        thread_info handling methods, from Steve Rostedt"
      
      * 'x86-threadinfo-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, threadinfo: Redo "x86: Use inline assembler to get sp"
        x86: Clean up dumpstack_64.c code
        x86: Keep thread_info on thread stack in x86_32
        x86: Prepare removal of previous_esp from i386 thread_info structure
        x86: Nuke GET_THREAD_INFO_WITH_ESP() macro for i386
        x86: Nuke the supervisor_stack field in i386 thread_info
      99f7b025
    • L
      Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a21e4087
      Linus Torvalds 提交于
      Pull timer updates from Ingo Molnar:
       "The main purpose is to fix a full dynticks bug related to
        virtualization, where steal time accounting appears to be zero in
        /proc/stat even after a few seconds of competing guests running busy
        loops in a same host CPU.  It's not a regression though as it was
        there since the beginning.
      
        The other commits are preparatory work to fix the bug and various
        cleanups"
      
      * 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        arch: Remove stub cputime.h headers
        sched: Remove needless round trip nsecs <-> tick conversion of steal time
        cputime: Fix jiffies based cputime assumption on steal accounting
        cputime: Bring cputime -> nsecs conversion
        cputime: Default implementation of nsecs -> cputime conversion
        cputime: Fix nsecs_to_cputime() return type cast
      a21e4087
    • L
      Merge branch 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b9b16a79
      Linus Torvalds 提交于
      Pull x86 cpufeature update from Ingo Molnar:
       "Two refinements to clflushopt support"
      
      * 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, cpufeature: If we disable CLFLUSH, we should disable CLFLUSHOPT
        x86, cpufeature: Rename X86_FEATURE_CLFLSH to X86_FEATURE_CLFLUSH
      b9b16a79
    • L
      Merge branch 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 4b2ce8f1
      Linus Torvalds 提交于
      Pull x86 reboot changes from Ingo Molnar:
       "Refine the reboot logic around the CF9 and EFI reboot methods, to make
        it more robust.  The expectation is for no working system to break,
        and for a couple of reboot-force systems to start rebooting
        automatically again"
      
      * 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, reboot: Only use CF9_COND automatically, not CF9
        x86, reboot: Add EFI and CF9 reboot methods into the default list
      4b2ce8f1
    • L
      Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 1694f0bb
      Linus Torvalds 提交于
      Pull x86 mm change from Ingo Molnar:
       "A micro-optimization for acpi_numa_slit_init()"
      
      * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/mm: Avoid duplicated pxm_to_node() calls
      1694f0bb
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32 · f27a15d2
      Linus Torvalds 提交于
      Pull AVR32 updates from Hans-Christian Egtvedt.
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32:
        avr32: replace simple_strtoul() with kstrtoul()
        arch/avr32/mm/cache.c: export symbol flush_icache_range() for module using
        avr32: remove cpu_data macro to fix compiles
      f27a15d2
  4. 01 4月, 2014 24 次提交
    • I
      Merge tag 'please-pull-cmci-storm' of... · b8c89c6a
      Ingo Molnar 提交于
      Merge tag 'please-pull-cmci-storm' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/urgent
      
      Pull RAS/CMCI storm code fix from Tony Luck:
      
       "Fix the code to tell when a CMCI storm ends by actually
        looking at the machine check banks when we poll while
        interrupts are disabled."
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      b8c89c6a
    • M
      x86/apic: Reinstate error IRQ Pentium erratum 3AP workaround · 023de4a0
      Maciej W. Rozycki 提交于
      A change introduced with commit 60283df7
      ("x86/apic: Read Error Status Register correctly") removed a read from the
      APIC ESR register made before writing to same required to retrieve the
      correct error status on Pentium systems affected by the 3AP erratum[1]:
      
      	"3AP. Writes to Error Register Clears Register
      
      	PROBLEM: The APIC Error register is intended to only be read.
      	If there is a write to this register the data in the APIC Error
      	register will be cleared and lost.
      
      	IMPLICATION: There is a possibility of clearing the Error
      	register status since the write to the register is not
      	specifically blocked.
      
      	WORKAROUND: Writes should not occur to the Pentium processor
      	APIC Error register.
      
      	STATUS: For the steppings affected see the Summary Table of
      	Changes at the beginning of this section."
      
      The steppings affected are actually: B1, B3 and B5.
      
      To avoid this information loss this change avoids the write to
      ESR on all Pentium systems where it is actually never needed;
      in Pentium processor documentation ESR was noted read-only and
      the write only required for future architectural
      compatibility[2].
      
      The approach taken is the same as in lapic_setup_esr().
      
      References:
      
      	[1] "Pentium Processor Family Developer's Manual", Intel Corporation,
      	    1997, order number 241428-005, Appendix A "Errata and S-Specs for the
      	    Pentium Processor Family", p. A-92,
      
      	[2] "Pentium Processor Family Developer's Manual, Volume 3: Architecture
      	    and Programming Manual", Intel Corporation, 1995, order number
      	    241430-004, Section 19.3.3. "Error Handling In APIC", p. 19-33.
      Signed-off-by: NMaciej W. Rozycki <macro@linux-mips.org>
      Cc: Richard Weinberger <richard@nod.at>
      Link: http://lkml.kernel.org/r/alpine.LFD.2.11.1404011300010.27402@eddie.linux-mips.orgSigned-off-by: NIngo Molnar <mingo@kernel.org>
      023de4a0
    • R
      avr32: replace simple_strtoul() with kstrtoul() · 4c3b7df4
      Ramkumar Ramachandra 提交于
      simple_strtoul() is marked for obsoletion; use the newer and more
      pleasant kstrtoul() in its place.
      
      Cc: Alexey Dobriyan <adobriyan@gmail.com>
      Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
      Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
      Signed-off-by: NRamkumar Ramachandra <artagnon@gmail.com>
      Signed-off-by: NHans-Christian Egtvedt <egtvedt@samfundet.no>
      4c3b7df4
    • L
      Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata · 01d5f3b5
      Linus Torvalds 提交于
      Pull libata updates from Tejun Heo:
       "A lot of activities on libata side this time.
      
         - A lot of changes around ahci.  Various embedded platforms are
           implementing ahci controllers.  Some were built atop ahci_platform,
           others were doing their own things.  Hans made some structural
           changes to libahci and librarized ahci_platform so that ahci
           platform drivers can share more common code.  A couple platform
           drivers are added on top of that and several are added to replace
           older drivers which were doing their own things (older ones are
           scheduled to be removed).
      
         - Dan finishes the patchset to make libata PM operations
           asynchronous.  Combined with one patch being routed through scsi,
           this should speed resume measurably.
      
         - Various fixes and cleanups from Bartlomiej and others"
      
      * 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (61 commits)
        ata: fix Marvell SATA driver dependencies
        ata: fix ARASAN CompactFlash PATA driver dependencies
        ata: remove superfluous casts
        ata: sata_highbank: remove superfluous cast
        ata: fix Calxeda Highbank SATA driver dependencies
        ata: fix R-Car SATA driver dependencies
        ARM: davinci: da850: update SATA AHCI support
        ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controller
        ata: move library code from ahci_platform.c to libahci_platform.c
        ata: ahci_platform: fix ahci_platform_data->suspend method handling
        libata: remove unused ata_sas_port_async_resume() stub
        libata.h: add stub for ata_sas_port_resume
        libata: async resume
        libata, libsas: kill pm_result and related cleanup
        ata: Fix compiler warning with APM X-Gene host controller driver
        arm64: Add APM X-Gene SoC AHCI SATA host controller DTS entries
        ata: Add APM X-Gene SoC AHCI SATA host controller driver
        Documentation: Add documentation for the APM X-Gene SoC SATA host controller DTS binding
        arm64: Add APM X-Gene SoC 15Gbps Multi-purpose PHY DTS entries
        ata: ahci_sunxi: fix code formatting
        ...
      01d5f3b5
    • L
      Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq · 9d919e8d
      Linus Torvalds 提交于
      Pull workqueue changes from Tejun Heo:
       "PREPARE_[DELAYED_]WORK() were used to change the work function of work
        items without fully reinitializing it; however, this makes workqueue
        consider the work item as a different one from before and allows the
        work item to start executing before the previous instance is finished
        which can lead to extremely subtle issues which are painful to debug.
      
        The interface has never been popular.  This pull request contains
        patches to remove existing usages and kill the interface.  As one of
        the changes was routed during the last devel cycle and another
        depended on a pending change in nvme, for-3.15 contains a couple merge
        commits.
      
        In addition, interfaces which were deprecated quite a while ago -
        __cancel_delayed_work() and WQ_NON_REENTRANT - are removed too"
      
      * 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
        workqueue: remove deprecated WQ_NON_REENTRANT
        workqueue: Spelling s/instensive/intensive/
        workqueue: remove PREPARE_[DELAYED_]WORK()
        staging/fwserial: don't use PREPARE_WORK
        afs: don't use PREPARE_WORK
        nvme: don't use PREPARE_WORK
        usb: don't use PREPARE_DELAYED_WORK
        floppy: don't use PREPARE_[DELAYED_]WORK
        ps3-vuart: don't use PREPARE_WORK
        wireless/rt2x00: don't use PREPARE_WORK in rt2800usb.c
        workqueue: Remove deprecated __cancel_delayed_work()
      9d919e8d
    • L
      Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu · cf6fafcf
      Linus Torvalds 提交于
      Pull percpu changes from Tejun Heo:
       "The percpu allocation is now popular enough for the extremely naive
        range allocator to cause scalability issues.
      
        The existing allocator linearly scanned the allocation map on both
        alloc and free without making use of hint or anything.  Al
        reimplemented the range allocator so that it can use binary search
        instead of linear scan during free and alloc path uses simple hinting
        to avoid scanning in common cases.  Combined, the new allocator
        resolves the scalability issue percpu allocator was showing during
        container benchmark workload"
      
      * 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
        percpu: renew the max_contig if we merge the head and previous block
        percpu: allocation size should be even
        percpu: speed alloc_pcpu_area() up
        percpu: store offsets instead of lengths in ->map[]
        perpcu: fold pcpu_split_block() into the only caller
      cf6fafcf
    • L
      Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 1ce235fa
      Linus Torvalds 提交于
      Pull ARM64 updates from Catalin Marinas:
       - KGDB support for arm64
       - PCI I/O space extended to 16M (in preparation of PCIe support
         patches)
       - Dropping ZONE_DMA32 in favour of ZONE_DMA (we only need one for the
         time being), together with swiotlb late initialisation to correctly
         setup the bounce buffer
       - DMA API cache maintenance support (not all ARMv8 platforms have
         hardware cache coherency)
       - Crypto extensions advertising via ELF_HWCAP2 for compat user space
       - Perf support for dwarf unwinding in compat mode
       - asm/tlb.h converted to the generic mmu_gather code
       - asm-generic rwsem implementation
       - Code clean-up
      
      * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (42 commits)
        arm64: Remove pgprot_dmacoherent()
        arm64: Support DMA_ATTR_WRITE_COMBINE
        arm64: Implement custom mmap functions for dma mapping
        arm64: Fix __range_ok macro
        arm64: Fix duplicated Kconfig entries
        arm64: mm: Route pmd thp functions through pte equivalents
        arm64: rwsem: use asm-generic rwsem implementation
        asm-generic: rwsem: de-PPCify rwsem.h
        arm64: enable generic CPU feature modalias matching for this architecture
        arm64: smp: make local symbol static
        arm64: debug: make local symbols static
        ARM64: perf: support dwarf unwinding in compat mode
        ARM64: perf: add support for frame pointer unwinding in compat mode
        ARM64: perf: add support for perf registers API
        arm64: Add boot time configuration of Intermediate Physical Address size
        arm64: Do not synchronise I and D caches for special ptes
        arm64: Make DMA coherent and strongly ordered mappings not executable
        arm64: barriers: add dmb barrier
        arm64: topology: Implement basic CPU topology support
        arm64: advertise ARMv8 extensions to 32-bit compat ELF binaries
        ...
      1ce235fa
    • L
      Merge tag 'please-pull-misc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux · e38be1b1
      Linus Torvalds 提交于
      Pull ia64 updates from Tony Luck:
       "Miscellaneous ia64 fixes for 3.15 merge window"
      
      * tag 'please-pull-misc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
        [IA64] Keep format strings from leaking into printk
        Fix warning in make defconfig
        [IA64] sba_iommu: fix section mismatch To: linux-kernel@vger.kernel.org
      e38be1b1
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k · f2427917
      Linus Torvalds 提交于
      Pull m68k updates from Geert Uytterhoeven.
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
        m68k: Update defconfigs for v3.14-rc1
        [SCSI] atari_scsi: Fix sleep_on race
        m68k: head.S - Remove bogus L prefix in comment
        m68k: Remove dead code
        m68k: Remove CONSOLE_PENGUIN macro, adopt CONFIG_LOGO
      f2427917
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 1f8c538e
      Linus Torvalds 提交于
      Pull s390 updates from Martin Schwidefsky:
       "There are two memory management related changes, the CMMA support for
        KVM to avoid swap-in of freed pages and the split page table lock for
        the PMD level.  These two come with common code changes in mm/.
      
        A fix for the long standing theoretical TLB flush problem, this one
        comes with a common code change in kernel/sched/.
      
        Another set of changes is Heikos uaccess work, included is the initial
        set of patches with more to come.
      
        And fixes and cleanups as usual"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (36 commits)
        s390/con3270: optionally disable auto update
        s390/mm: remove unecessary parameter from pgste_ipte_notify
        s390/mm: remove unnecessary parameter from gmap_do_ipte_notify
        s390/mm: fixing comment so that parameter name match
        s390/smp: limit number of cpus in possible cpu mask
        hypfs: Add clarification for "weight_min" attribute
        s390: update defconfigs
        s390/ptrace: add support for PTRACE_SINGLEBLOCK
        s390/perf: make print_debug_cf() static
        s390/topology: Remove call to update_cpu_masks()
        s390/compat: remove compat exec domain
        s390: select CONFIG_TTY for use of tty in unconditional keyboard driver
        s390/appldata_os: fix cpu array size calculation
        s390/checksum: remove memset() within csum_partial_copy_from_user()
        s390/uaccess: remove copy_from_user_real()
        s390/sclp_early: Return correct HSA block count also for zero
        s390: add some drivers/subsystems to the MAINTAINERS file
        s390: improve debug feature usage
        s390/airq: add support for irq ranges
        s390/mm: enable split page table lock for PMD level
        ...
      1f8c538e
    • L
      Merge branch 'compat' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 190f9186
      Linus Torvalds 提交于
      Pull s390 compat wrapper rework from Heiko Carstens:
       "S390 compat system call wrapper simplification work.
      
        The intention of this work is to get rid of all hand written assembly
        compat system call wrappers on s390, which perform proper sign or zero
        extension, or pointer conversion of compat system call parameters.
        Instead all of this should be done with C code eg by using Al's
        COMPAT_SYSCALL_DEFINEx() macro.
      
        Therefore all common code and s390 specific compat system calls have
        been converted to the COMPAT_SYSCALL_DEFINEx() macro.
      
        In order to generate correct code all compat system calls may only
        have eg compat_ulong_t parameters, but no unsigned long parameters.
        Those patches which change parameter types from unsigned long to
        compat_ulong_t parameters are separate in this series, but shouldn't
        cause any harm.
      
        The only compat system calls which intentionally have 64 bit
        parameters (preadv64 and pwritev64) in support of the x86/32 ABI
        haven't been changed, but are now only available if an architecture
        defines __ARCH_WANT_COMPAT_SYS_PREADV64/PWRITEV64.
      
        System calls which do not have a compat variant but still need proper
        zero extension on s390, like eg "long sys_brk(unsigned long brk)" will
        get a proper wrapper function with the new s390 specific
        COMPAT_SYSCALL_WRAPx() macro:
      
           COMPAT_SYSCALL_WRAP1(brk, unsigned long, brk);
      
        which generates the following code (simplified):
      
           asmlinkage long sys_brk(unsigned long brk);
           asmlinkage long compat_sys_brk(long brk)
           {
               return sys_brk((u32)brk);
           }
      
        Given that the C file which contains all the COMPAT_SYSCALL_WRAP lines
        includes both linux/syscall.h and linux/compat.h, it will generate
        build errors, if the declaration of sys_brk() doesn't match, or if
        there exists a non-matching compat_sys_brk() declaration.
      
        In addition this will intentionally result in a link error if
        somewhere else a compat_sys_brk() function exists, which probably
        should have been used instead.  Two more BUILD_BUG_ONs make sure the
        size and type of each compat syscall parameter can be handled
        correctly with the s390 specific macros.
      
        I converted the compat system calls step by step to verify the
        generated code is correct and matches the previous code.  In fact it
        did not always match, however that was always a bug in the hand
        written asm code.
      
        In result we get less code, less bugs, and much more sanity checking"
      
      * 'compat' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (44 commits)
        s390/compat: add copyright statement
        compat: include linux/unistd.h within linux/compat.h
        s390/compat: get rid of compat wrapper assembly code
        s390/compat: build error for large compat syscall args
        mm/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types
        kexec/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types
        net/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types
        ipc/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types
        fs/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types
        ipc/compat: convert to COMPAT_SYSCALL_DEFINE
        fs/compat: convert to COMPAT_SYSCALL_DEFINE
        security/compat: convert to COMPAT_SYSCALL_DEFINE
        mm/compat: convert to COMPAT_SYSCALL_DEFINE
        net/compat: convert to COMPAT_SYSCALL_DEFINE
        kernel/compat: convert to COMPAT_SYSCALL_DEFINE
        fs/compat: optional preadv64/pwrite64 compat system calls
        ipc/compat_sys_msgrcv: change msgtyp type from long to compat_long_t
        s390/compat: partial parameter conversion within syscall wrappers
        s390/compat: automatic zero, sign and pointer conversion of syscalls
        s390/compat: add sync_file_range and fallocate compat syscalls
        ...
      190f9186
    • L
      Merge branch 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 176ab02d
      Linus Torvalds 提交于
      Pull x86 LTO changes from Peter Anvin:
       "More infrastructure work in preparation for link-time optimization
        (LTO).  Most of these changes is to make sure symbols accessed from
        assembly code are properly marked as visible so the linker doesn't
        remove them.
      
        My understanding is that the changes to support LTO are still not
        upstream in binutils, but are on the way there.  This patchset should
        conclude the x86-specific changes, and remaining patches to actually
        enable LTO will be fed through the Kbuild tree (other than keeping up
        with changes to the x86 code base, of course), although not
        necessarily in this merge window"
      
      * 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
        Kbuild, lto: Handle basic LTO in modpost
        Kbuild, lto: Disable LTO for asm-offsets.c
        Kbuild, lto: Add a gcc-ld script to let run gcc as ld
        Kbuild, lto: add ld-version and ld-ifversion macros
        Kbuild, lto: Drop .number postfixes in modpost
        Kbuild, lto, workaround: Don't warn for initcall_reference in modpost
        lto: Disable LTO for sys_ni
        lto: Handle LTO common symbols in module loader
        lto, workaround: Add workaround for initcall reordering
        lto: Make asmlinkage __visible
        x86, lto: Disable LTO for the x86 VDSO
        initconst, x86: Fix initconst mistake in ts5500 code
        initconst: Fix initconst mistake in dcdbas
        asmlinkage: Make trace_hardirqs_on/off_caller visible
        asmlinkage, x86: Fix 32bit memcpy for LTO
        asmlinkage Make __stack_chk_failed and memcmp visible
        asmlinkage: Mark rwsem functions that can be called from assembler asmlinkage
        asmlinkage: Make main_extable_sort_needed visible
        asmlinkage, mutex: Mark __visible
        asmlinkage: Make trace_hardirq visible
        ...
      176ab02d
    • N
      x86: Adjust irq remapping quirk for older revisions of 5500/5520 chipsets · 6f8a1b33
      Neil Horman 提交于
      Commit 03bbcb2e (iommu/vt-d: add quirk for broken interrupt
      remapping on 55XX chipsets) properly disables irq remapping on the
      5500/5520 chipsets that don't correctly perform that feature.
      
      However, when I wrote it, I followed the errata sheet linked in that
      commit too closely, and explicitly tied the activation of the quirk to
      revision 0x13 of the chip, under the assumption that earlier revisions
      were not in the field.  Recently a system was reported to be suffering
      from this remap bug and the quirk hadn't triggered, because the
      revision id register read at a lower value that 0x13, so the quirk
      test failed improperly.  Given this, it seems only prudent to adjust
      this quirk so that any revision less than 0x13 has the quirk asserted.
      
      [ tglx: Removed the 0x12 comparison of pci id 3405 as this is covered
          	by the <= 0x13 check already ]
      Signed-off-by: NNeil Horman <nhorman@tuxdriver.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Cc: x86@kernel.org
      Cc: stable@vger.kernel.org
      Link: http://lkml.kernel.org/r/1394649873-14913-1-git-send-email-nhorman@tuxdriver.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
      6f8a1b33
    • L
      Merge branch 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · e06df6a7
      Linus Torvalds 提交于
      Pull x86 kaslr update from Ingo Molnar:
       "This adds kernel module load address randomization"
      
      * 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, kaslr: fix module lock ordering problem
        x86, kaslr: randomize module base load address
      e06df6a7
    • L
      Merge branch 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c0fc3cba
      Linus Torvalds 提交于
      Pull x86 hyperv change from Ingo Molnar:
       "Skip the timer_irq_works() check on hyperv systems"
      
      * 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, hyperv: Bypass the timer_irq_works() check
      c0fc3cba
    • L
      Merge branch 'x86-hash-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d9fcca40
      Linus Torvalds 提交于
      Pull x86 hashing changes from Ingo Molnar:
       "Small fixes and cleanups to the librarized arch_fast_hash() methods,
        used by the net/openvswitch code"
      
      * 'x86-hash-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, hash: Simplify switch, add __init annotation
        x86, hash: Swap arguments passed to crc32_u32()
        x86, hash: Fix build failure with older binutils
      d9fcca40
    • L
      Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 7cc3afdf
      Linus Torvalds 提交于
      Pull x86 EFI changes from Ingo Molnar:
       "The main changes:
      
        - Add debug code to the dump EFI pagetable - Borislav Petkov
      
        - Make 1:1 runtime mapping robust when booting on machines with lots
          of memory - Borislav Petkov
      
        - Move the EFI facilities bits out of 'x86_efi_facility' and into
          efi.flags which is the standard architecture independent place to
          keep EFI state, by Matt Fleming.
      
        - Add 'EFI mixed mode' support: this allows 64-bit kernels to be
          booted from 32-bit firmware.  This needs a bootloader that supports
          the 'EFI handover protocol'.  By Matt Fleming"
      
      * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
        x86, efi: Abstract x86 efi_early calls
        x86/efi: Restore 'attr' argument to query_variable_info()
        x86/efi: Rip out phys_efi_get_time()
        x86/efi: Preserve segment registers in mixed mode
        x86/boot: Fix non-EFI build
        x86, tools: Fix up compiler warnings
        x86/efi: Re-disable interrupts after calling firmware services
        x86/boot: Don't overwrite cr4 when enabling PAE
        x86/efi: Wire up CONFIG_EFI_MIXED
        x86/efi: Add mixed runtime services support
        x86/efi: Firmware agnostic handover entry points
        x86/efi: Split the boot stub into 32/64 code paths
        x86/efi: Add early thunk code to go from 64-bit to 32-bit
        x86/efi: Build our own EFI services pointer table
        efi: Add separate 32-bit/64-bit definitions
        x86/efi: Delete dead code when checking for non-native
        x86/mm/pageattr: Always dump the right page table in an oops
        x86, tools: Consolidate #ifdef code
        x86/boot: Cleanup header.S by removing some #ifdefs
        efi: Use NULL instead of 0 for pointer
        ...
      7cc3afdf
    • L
      Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ad8946fb
      Linus Torvalds 提交于
      Pull x86 debug cleanup from Ingo Molnar:
       "A single trivial cleanup"
      
      * 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        i386: Remove unneeded test of 'task' in dump_trace() (again)
      ad8946fb
    • L
      Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 918d80a1
      Linus Torvalds 提交于
      Pull x86 cpu handling changes from Ingo Molnar:
       "Bigger changes:
      
         - Intel CPU hardware-enablement: new vector instructions support
           (AVX-512), by Fenghua Yu.
      
         - Support the clflushopt instruction and use it in appropriate
           places.  clflushopt is similar to clflush but with more relaxed
           ordering, by Ross Zwisler.
      
         - MSR accessor cleanups, by Borislav Petkov.
      
         - 'forcepae' boot flag for those who have way too much time to spend
           on way too old Pentium-M systems and want to live way too
           dangerously, by Chris Bainbridge"
      
      * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, cpu: Add forcepae parameter for booting PAE kernels on PAE-disabled Pentium M
        Rename TAINT_UNSAFE_SMP to TAINT_CPU_OUT_OF_SPEC
        x86, intel: Make MSR_IA32_MISC_ENABLE bit constants systematic
        x86, Intel: Convert to the new bit access MSR accessors
        x86, AMD: Convert to the new bit access MSR accessors
        x86: Add another set of MSR accessor functions
        x86: Use clflushopt in drm_clflush_virt_range
        x86: Use clflushopt in drm_clflush_page
        x86: Use clflushopt in clflush_cache_range
        x86: Add support for the clflushopt instruction
        x86, AVX-512: Enable AVX-512 States Context Switch
        x86, AVX-512: AVX-512 Feature Detection
      918d80a1
    • L
      Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 26a5c0df
      Linus Torvalds 提交于
      Pull x86 cleanups from Ingo Molnar:
       "Various smaller cleanups"
      
      * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, pageattr: Correct WBINVD spelling in comment
        x86, crash: Unify ifdef
        x86, boot: Correct max ramdisk size name
      26a5c0df
    • L
      Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 54cad627
      Linus Torvalds 提交于
      Pull x86 build change from Ingo Molnar:
       "Explicitly disable x87 FPU instructions, to catch mistaken floating
        point use at build time, instead of crashing or misbehaving during run
        time"
      
      * 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86: Disable generation of traditional x87 instructions
      54cad627
    • L
      Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 6ed77051
      Linus Torvalds 提交于
      Pull x86 apic changes from Ingo Molnar:
       "An xAPIC CPU hotplug race fix, plus cleanups and minor fixes"
      
      * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/apic: Plug racy xAPIC access of CPU hotplug code
        x86/apic: Always define nox2apic and define it as initdata
        x86/apic: Remove unused function prototypes
        x86/apic: Switch wait_for_init_deassert() to a bool flag
        x86/apic: Only use default_wait_for_init_deassert()
      6ed77051
    • L
      Merge branch 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3a88fe3b
      Linus Torvalds 提交于
      Pull x86 acpi numa fix from Ingo Molnar:
       "A single NUMA CPU hotplug fix"
      
      * 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, acpi: Fix bug in associating hot-added CPUs with corresponding NUMA node
      3a88fe3b
    • L
      Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 971eae7c
      Linus Torvalds 提交于
      Pull scheduler changes from Ingo Molnar:
       "Bigger changes:
      
         - sched/idle restructuring: they are WIP preparation for deeper
           integration between the scheduler and idle state selection, by
           Nicolas Pitre.
      
         - add NUMA scheduling pseudo-interleaving, by Rik van Riel.
      
         - optimize cgroup context switches, by Peter Zijlstra.
      
         - RT scheduling enhancements, by Thomas Gleixner.
      
        The rest is smaller changes, non-urgnt fixes and cleanups"
      
      * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (68 commits)
        sched: Clean up the task_hot() function
        sched: Remove double calculation in fix_small_imbalance()
        sched: Fix broken setscheduler()
        sparc64, sched: Remove unused sparc64_multi_core
        sched: Remove unused mc_capable() and smt_capable()
        sched/numa: Move task_numa_free() to __put_task_struct()
        sched/fair: Fix endless loop in idle_balance()
        sched/core: Fix endless loop in pick_next_task()
        sched/fair: Push down check for high priority class task into idle_balance()
        sched/rt: Fix picking RT and DL tasks from empty queue
        trace: Replace hardcoding of 19 with MAX_NICE
        sched: Guarantee task priority in pick_next_task()
        sched/idle: Remove stale old file
        sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED
        cpuidle/arm64: Remove redundant cpuidle_idle_call()
        cpuidle/powernv: Remove redundant cpuidle_idle_call()
        sched, nohz: Exclude isolated cores from load balancing
        sched: Fix select_task_rq_fair() description comments
        workqueue: Replace hardcoding of -20 and 19 with MIN_NICE and MAX_NICE
        sys: Replace hardcoding of -20 and 19 with MIN_NICE and MAX_NICE
        ...
      971eae7c