1. 23 Jan, 2020 1 commit
    • Marc Zyngier's avatar
      KVM: arm/arm64: Cleanup MMIO handling · 0e20f5e2
      Marc Zyngier authored
      Our MMIO handling is a bit odd, in the sense that it uses an
      intermediate per-vcpu structure to store the various decoded
      information that describe the access.
      
      But the same information is readily available in the HSR/ESR_EL2
      field, and we actually use this field to populate the structure.
      
      Let's simplify the whole thing by getting rid of the superfluous
      structure and save a (tiny) bit of space in the vcpu structure.
      
      [32bit fix courtesy of Olof Johansson <olof@lixom.net>]
      Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
      0e20f5e2
  2. 19 Jan, 2020 12 commits
  3. 29 Dec, 2019 5 commits
  4. 28 Dec, 2019 4 commits
  5. 27 Dec, 2019 8 commits
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drm · 48a8dd17
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Post-xmas food coma recovery fixes. Only three fixes for i915 since I
        expect most people are holidaying.
      
        i915:
         - power management rc6 fix
         - framebuffer tracking fix
         - display power management ratelimit fix"
      
      * tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drm:
        drm/i915: Hold reference to intel_frontbuffer as we track activity
        drm/i915/gt: Ratelimit display power w/a
        drm/i915/pmu: Ensure monotonic rc6
      48a8dd17
    • Linus Torvalds's avatar
      Merge tag 'linux-kselftest-5.5-rc4' of... · f4b39746
      Linus Torvalds authored
      Merge tag 'linux-kselftest-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
      
      Pull Kselftest fixes from Shuah Khan:
      
       - rseq build failures fixes related to glibc 2.30 compatibility from
         Mathieu Desnoyers
      
       - Kunit fixes and cleanups from SeongJae Park
      
       - Fixes to filesystems/epoll, firmware, and livepatch build failures
         and skip handling.
      
      * tag 'linux-kselftest-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
        rseq/selftests: Clarify rseq_prepare_unload() helper requirements
        rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
        rseq/selftests: Turn off timeout setting
        kunit/kunit_tool_test: Test '--build_dir' option run
        kunit: Rename 'kunitconfig' to '.kunitconfig'
        kunit: Place 'test.log' under the 'build_dir'
        kunit: Create default config in '--build_dir'
        kunit: Remove duplicated defconfig creation
        docs/kunit/start: Use in-tree 'kunit_defconfig'
        selftests: livepatch: Fix it to do root uid check and skip
        selftests: firmware: Fix it to do root uid check and skip
        selftests: filesystems/epoll: fix build error
      f4b39746
    • Linus Torvalds's avatar
      Merge tag 'pm-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 1413c361
      Linus Torvalds authored
      Pull power management fixes from Rafael Wysocki:
       "Fix compile test of the Tegra devfreq driver (Arnd Bergmann) and
        remove redundant Kconfig dependencies from multiple devfreq drivers
        (Leonard Crestez)"
      
      * tag 'pm-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PM / devfreq: tegra: Add COMMON_CLK dependency
        PM / devfreq: Drop explicit selection of PM_OPP
      1413c361
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-block · 534121d2
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
      
       - Removal of now unused busy wqe list (Hillf)
      
       - Add cond_resched() to io-wq work processing (Hillf)
      
       - And then the series that I hinted at from last week, which removes
         the sqe from the io_kiocb and keeps all sqe handling on the prep
         side. This guarantees that an opcode can't do the wrong thing and
         read the sqe more than once. This is unchanged from last week, no
         issues have been observed with this in testing. Hence I really think
         we should fold this into 5.5.
      
      * tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-block:
        io-wq: add cond_resched() to worker thread
        io-wq: remove unused busy list from io_sqe
        io_uring: pass in 'sqe' to the prep handlers
        io_uring: standardize the prep methods
        io_uring: read 'count' for IORING_OP_TIMEOUT in prep handler
        io_uring: move all prep state for IORING_OP_{SEND,RECV}_MGS to prep handler
        io_uring: move all prep state for IORING_OP_CONNECT to prep handler
        io_uring: add and use struct io_rw for read/writes
        io_uring: use u64_to_user_ptr() consistently
      534121d2
    • Linus Torvalds's avatar
      Merge tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-block · 0f710a55
      Linus Torvalds authored
      Pull libata fixes from Jens Axboe:
       "Two things in here:
      
         - First half of a series that fixes ahci_brcm, also marked for
           stable. The other part of the series is going into 5.6 (Florian)
      
         - sata_nv regression fix that is also marked for stable (Sascha)"
      
      * tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-block:
        ata: ahci_brcm: Add missing clock management during recovery
        ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
        ata: ahci_brcm: Fix AHCI resources management
        ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
        libata: Fix retrieving of active qcs
      0f710a55
    • Linus Torvalds's avatar
      Merge tag 'block-5.5-20191226' of git://git.kernel.dk/linux-block · 8ae40a69
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "Only thing here are the changes from Arnd from last week, which now
        have the appropriate header include to ensure they actually compile if
        COMPAT is enabled"
      
      * tag 'block-5.5-20191226' of git://git.kernel.dk/linux-block:
        compat_ioctl: block: handle Persistent Reservations
        compat_ioctl: block: handle add zone open, close and finish ioctl
        compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES
        compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
        pktcdvd: fix regression on 64-bit architectures
      8ae40a69
    • Linus Torvalds's avatar
      Merge tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · a305bd7c
      Linus Torvalds authored
      Pull GPIO fixes from Linus Walleij:
       "A set of fixes for the v5.5 series:
      
         - Fix the build for the Xtensa driver.
      
         - Make sure to set up the parent device for mpc8xxx.
      
         - Clarify the look-up error message.
      
         - Fix the usage of the line direction in the mockup device.
      
         - Fix a type warning on the Aspeed driver.
      
         - Remove the pointless __exit annotation on the xgs-iproc which is
           causing a compilation problem.
      
         - Fix up emultation of open drain outputs .get_direction()
      
         - Fix the IRQ callbacks on the PCA953xx to use bitops and work
           properly.
      
         - Fix the Kconfig on the Tegra driver"
      
      * tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
        gpio: tegra186: Allow building on Tegra194-only configurations
        gpio: pca953x: Switch to bitops in IRQ callbacks
        gpiolib: fix up emulated open drain outputs
        MAINTAINERS: Append missed file to the database
        gpio: xgs-iproc: remove __exit annotation for iproc_gpio_remove
        gpio: aspeed: avoid return type warning
        gpio: mockup: Fix usage of new GPIO_LINE_DIRECTION
        gpio: Fix error message on out-of-range GPIO in lookup table
        gpio: mpc8xxx: Add platform device to gpiochip->parent
        gpio: xtensa: fix driver build
      a305bd7c
    • Dave Airlie's avatar
      Merge tag 'drm-intel-fixes-2019-12-23' of... · e31d941c
      Dave Airlie authored
      Merge tag 'drm-intel-fixes-2019-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
      
      i915 power and frontbuffer tracking fixes
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      
      From: Jani Nikula <jani.nikula@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/87r20vdlrs.fsf@intel.com
      e31d941c
  6. 26 Dec, 2019 5 commits
    • Florian Fainelli's avatar
      ata: ahci_brcm: Add missing clock management during recovery · bf0e5013
      Florian Fainelli authored
      The downstream implementation of ahci_brcm.c did contain clock
      management recovery, but until recently, did that outside of the
      libahci_platform helpers and this was unintentionally stripped out while
      forward porting the patch upstream.
      
      Add the missing clock management during recovery and sleep for 10
      milliseconds per the design team recommendations to ensure the SATA PHY
      controller and AFE have been fully quiesced.
      
      Fixes: eb73390a ("ata: ahci_brcm: Recover from failures to identify devices")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      bf0e5013
    • Florian Fainelli's avatar
      ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE · 1a3d78cb
      Florian Fainelli authored
      Set AHCI_HFLAG_DELAY_ENGINE for the BCM7425 AHCI controller thus making
      it conforming to the 'strict' AHCI implementation which this controller
      is based on.
      
      This solves long link establishment with specific hard drives (e.g.:
      Seagate ST1000VM002-9ZL1 SC12) that would otherwise have to complete the
      error recovery handling before finally establishing a succesful SATA
      link at the desired speed.
      
      We re-order the hpriv->flags assignment to also remove the NONCQ quirk
      since we can set the flag directly.
      
      Fixes: 9586114cf1e9 ("ata: ahci_brcmstb: add support MIPS-based platforms")
      Fixes: 423be77daabe ("ata: ahci_brcmstb: add quirk for broken ncq")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      1a3d78cb
    • Florian Fainelli's avatar
      ata: ahci_brcm: Fix AHCI resources management · c0cdf2ac
      Florian Fainelli authored
      The AHCI resources management within ahci_brcm.c is a little
      convoluted, largely because it historically had a dedicated clock that
      was managed within this file in the downstream tree. Once brough
      upstream though, the clock was left to be managed by libahci_platform.c
      which is entirely appropriate.
      
      This patch series ensures that the AHCI resources are fetched and
      enabled before any register access is done, thus avoiding bus errors on
      platforms which clock gate the controller by default.
      
      As a result we need to re-arrange the suspend() and resume() functions
      in order to avoid accessing registers after the clocks have been turned
      off respectively before the clocks have been turned on. Finally, we can
      refactor brcm_ahci_get_portmask() in order to fetch the number of ports
      from hpriv->mmio which is now accessible without jumping through hoops
      like we used to do.
      
      The commit pointed in the Fixes tag is both old and new enough not to
      require major headaches for backporting of this patch.
      
      Fixes: eba68f82 ("ata: ahci_brcmstb: rename to support across Broadcom SoC's")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      c0cdf2ac
    • Florian Fainelli's avatar
      ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys() · 84b032db
      Florian Fainelli authored
      This reverts commit 6bb86fef
      ("libahci_platform: Staticize ahci_platform_<en/dis>able_phys()") we are
      going to need ahci_platform_{enable,disable}_phys() in a subsequent
      commit for ahci_brcm.c in order to properly control the PHY
      initialization order.
      
      Also make sure the function prototypes are declared in
      include/linux/ahci_platform.h as a result.
      
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
      Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      84b032db
    • Sascha Hauer's avatar
      libata: Fix retrieving of active qcs · 8385d756
      Sascha Hauer authored
      ata_qc_complete_multiple() is called with a mask of the still active
      tags.
      
      mv_sata doesn't have this information directly and instead calculates
      the still active tags from the started tags (ap->qc_active) and the
      finished tags as (ap->qc_active ^ done_mask)
      
      Since 28361c40 the hw_tag and tag are no longer the same and the
      equation is no longer valid. In ata_exec_internal_sg() ap->qc_active is
      initialized as 1ULL << ATA_TAG_INTERNAL, but in hardware tag 0 is
      started and this will be in done_mask on completion. ap->qc_active ^
      done_mask becomes 0x100000000 ^ 0x1 = 0x100000001 and thus tag 0 used as
      the internal tag will never be reported as completed.
      
      This is fixed by introducing ata_qc_get_active() which returns the
      active hardware tags and calling it where appropriate.
      
      This is tested on mv_sata, but sata_fsl and sata_nv suffer from the same
      problem. There is another case in sata_nv that most likely needs fixing
      as well, but this looks a little different, so I wasn't confident enough
      to change that.
      
      Fixes: 28361c40 ("libata: add extra internal command")
      Cc: stable@vger.kernel.org
      Tested-by: default avatarPali Rohár <pali.rohar@gmail.com>
      Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
      
      Add missing export of ata_qc_get_active(), as per Pali.
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      8385d756
  7. 25 Dec, 2019 1 commit
  8. 24 Dec, 2019 1 commit
  9. 23 Dec, 2019 3 commits
    • Mathieu Desnoyers's avatar
      rseq/selftests: Clarify rseq_prepare_unload() helper requirements · 2a1f40ad
      Mathieu Desnoyers authored
      The rseq.h UAPI now documents that the rseq_cs field must be cleared
      before reclaiming memory that contains the targeted struct rseq_cs, but
      also that the rseq_cs field must be cleared before reclaiming memory of
      the code pointed to by the rseq_cs start_ip and post_commit_offset
      fields.
      
      While we can expect that use of dlclose(3) will typically unmap
      both struct rseq_cs and its associated code at once, nothing would
      theoretically prevent a JIT from reclaiming the code without
      reclaiming the struct rseq_cs, which would erroneously allow the
      kernel to consider new code which is not a rseq critical section
      as a rseq critical section following a code reclaim.
      Suggested-by: default avatarFlorian Weimer <fw@deneb.enyo.de>
      Signed-off-by: default avatarMathieu Desnoyers <mathieu.desnoyers@efficios.com>
      Cc: Shuah Khan <skhan@linuxfoundation.org>
      Cc: Florian Weimer <fw@deneb.enyo.de>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
      Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
      Cc: Boqun Feng <boqun.feng@gmail.com>
      Cc: "H . Peter Anvin" <hpa@zytor.com>
      Cc: Paul Turner <pjt@google.com>
      Cc: Dmitry Vyukov <dvyukov@google.com>
      Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
      2a1f40ad
    • Mathieu Desnoyers's avatar
      rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30 · 8df34c56
      Mathieu Desnoyers authored
      glibc 2.30 introduces gettid() in public headers, which clashes with
      the internal static definition within rseq selftests.
      
      Rename gettid() to rseq_gettid() to eliminate this symbol name clash.
      Reported-by: default avatarTommi T. Rantala <tommi.t.rantala@nokia.com>
      Signed-off-by: default avatarMathieu Desnoyers <mathieu.desnoyers@efficios.com>
      Cc: Shuah Khan <skhan@linuxfoundation.org>
      Cc: Tommi T. Rantala <tommi.t.rantala@nokia.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
      Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
      Cc: Boqun Feng <boqun.feng@gmail.com>
      Cc: "H . Peter Anvin" <hpa@zytor.com>
      Cc: Paul Turner <pjt@google.com>
      Cc: Dmitry Vyukov <dvyukov@google.com>
      Cc: <stable@vger.kernel.org>	# v4.18+
      Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
      8df34c56
    • Mathieu Desnoyers's avatar
      rseq/selftests: Turn off timeout setting · af9cb29c
      Mathieu Desnoyers authored
      As the rseq selftests can run for a long period of time, disable the
      timeout that the general selftests have.
      Signed-off-by: default avatarMathieu Desnoyers <mathieu.desnoyers@efficios.com>
      Cc: Shuah Khan <skhan@linuxfoundation.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
      Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
      Cc: Boqun Feng <boqun.feng@gmail.com>
      Cc: "H . Peter Anvin" <hpa@zytor.com>
      Cc: Paul Turner <pjt@google.com>
      Cc: Dmitry Vyukov <dvyukov@google.com>
      Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
      af9cb29c