1. 07 Mar, 2022 1 commit
    • Drew Fustini's avatar
      clocksource/drivers/timer-ti-dm: Fix regression from errata i940 fix · bceaae3b
      Drew Fustini authored
      The existing fix for errata i940 causes a conflict for IPU2 which is
      using timer 3 and 4. From arch/arm/boot/dts/dra7-ipu-dsp-common.dtsi:
      
        &ipu2 {
                mboxes = <&mailbox6 &mbox_ipu2_ipc3x>;
                ti,timers = <&timer3>;
                ti,watchdog-timers = <&timer4>, <&timer9>;
        };
      
      The conflict was noticed when booting mainline on the BeagleBoard X15
      which has a TI AM5728 SoC:
      
        remoteproc remoteproc1: 55020000.ipu is available
        remoteproc remoteproc1: powering up 55020000.ipu
        remoteproc remoteproc1: Booting fw image dra7-ipu2-fw.xem4
        omap-rproc 55020000.ipu: could not get timer platform device
        omap-rproc 55020000.ipu: omap_rproc_enable_timers failed: -19
        remoteproc remoteproc1: can't start rproc 55020000.ipu: -19
      
      This change modifies the errata fix to instead use timer 15 and 16 which
      resolves the timer conflict.
      
      It does not appear to introduce any latency regression. Results from
      cyclictest with original errata fix using dmtimer 3 and 4:
      
        # cyclictest --mlockall --smp --priority=80 --interval=200 --distance=0
        policy: fifo: loadavg: 0.02 0.03 0.05
      
        T: 0 ( 1449) P:80 I:200 C: 800368 Min:   0 Act:   32 Avg:   22 Max:  128
        T: 1 ( 1450) P:80 I:200 C: 800301 Min:   0 Act:   12 Avg:   23 Max:   70
      
      The results after the change to dmtimer 15 and 16:
      
        # cyclictest --mlockall --smp --priority=80 --interval=200 --distance=0
        policy: fifo: loadavg: 0.36 0.19 0.07
      
        T: 0 ( 1711) P:80 I:200 C: 759599 Min:   0 Act:    6 Avg:   22 Max:  108
        T: 1 ( 1712) P:80 I:200 C: 759539 Min:   0 Act:   19 Avg:   23 Max:   79
      
      Fixes: 25de4ce5 ("clocksource/drivers/timer-ti-dm: Handle dra7 timer wrap errata i940")
      Link: https://lore.kernel.org/linux-omap/YfWsG0p6to3IJuvE@x1/Suggested-by: default avatarSuman Anna <s-anna@ti.com>
      Reviewed-by: default avatarTony Lindgren <tony@atomide.com>
      Signed-off-by: default avatarDrew Fustini <dfustini@baylibre.com>
      Link: https://lore.kernel.org/r/20220204053503.1409162-1-dfustini@baylibre.comSigned-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
      bceaae3b
  2. 16 Feb, 2022 1 commit
  3. 26 Jan, 2022 5 commits
  4. 10 Jan, 2022 2 commits
    • Thomas Gleixner's avatar
      Merge branch 'clocksource' of... · 35e13e9d
      Thomas Gleixner authored
      Merge branch 'clocksource' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into timers/core
      
      Pull clocksource watchdog updates from Paul McKenney:
      
       - Avoid accidental unstable marking of clocksources by rejecting
         clocksource measurements where the source of the skew is the delay
         reading reference clocksource itself.  This change avoids many of the
         current false positives caused by epic cache-thrashing workloads.
      
       - Reduce the default clocksource_watchdog() retries to 2, thus offsetting
         the increased overhead due to #1 above rereading the reference
         clocksource.
      
      Link: https://lore.kernel.org/lkml/20220105001723.GA536708@paulmck-ThinkPad-P17-Gen-1
      35e13e9d
    • Thomas Gleixner's avatar
      Merge tag 'timers-v5.17-rc1' of https://git.linaro.org/people/daniel.lezcano/linux into timers/core · 6629c076
      Thomas Gleixner authored
      Pull clocksource/events updates from Daniel Lezcano:
      
       - Refactor resource allocation on the Exynos_mct driver without
         functional changes (Marek Szyprowski)
      
       - Add imx8ulp compatible string for NPX TPM driver (Jacky Bai)
      
       - Fix comma introduced by error by replacing it by the initial
         semicolon on the Exynos_mct (Will Deacon)
      
       - Add OSTM driver support on Renesas. The reset line must be
         deasserted before accessing the registers. This change depends on an
         external change resulting in a shared immutable branch
         'reset/of-get-optional-exclusive' from
         git://git.pengutronix.de/pza/linux (Biju Das)
      
       - Make the OSTM Kconfig option visible to user in order to let him
         disable it when ARM architected timers is enabled (Biju Das)
      
       - Tag two variables on iMX sysctr _ro_afterinit (Peng Fan)
      
       - Set the cpumask to cpu_possible_mask in order to have full benefit
         of the DYNIRQ flag on iMX sysctr (Peng Fan)
      
       - Tag __maybe_unused a variable in the Pistachio timer driver in order
         to fix a warning reported by the kernel test robot (Drew Fustini)
      
       - Add MStar MSC313e timer support and the ssd20xd-based variant, as
         well as the DT bindings (Romain Perier)
      
       - Remove the incompatible compatible string for the rk3066 (Johan
         Jonker)
      
       - Fix dts_check warnings on the cadence ttc driver by adding the power
         domain bindings (Michal Simek)
      
      Link: https://lore.kernel.org/lkml/e093c706-c98d-29ee-0102-78b6d41c6164@linaro.org
      6629c076
  5. 20 Dec, 2021 3 commits
  6. 14 Dec, 2021 2 commits
  7. 12 Dec, 2021 14 commits
  8. 11 Dec, 2021 12 commits
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of... · bbdff6d5
      Linus Torvalds authored
      Merge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
      
      Pull perf tools fixes from Arnaldo Carvalho de Melo:
      
       - Prevent out-of-bounds access to per sample registers.
      
       - Fix NULL vs IS_ERR_OR_NULL() checking on the python binding.
      
       - Intel PT fixes, half of those are one-liners:
            - Fix some PGE (packet generation enable/control flow packets) usage.
            - Fix sync state when a PSB (synchronization) packet is found.
            - Fix intel_pt_fup_event() assumptions about setting state type.
            - Fix state setting when receiving overflow (OVF) packet.
            - Fix next 'err' value, walking trace.
            - Fix missing 'instruction' events with 'q' option.
            - Fix error timestamp setting on the decoder error path.
      
      * tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
        perf python: Fix NULL vs IS_ERR_OR_NULL() checking
        perf intel-pt: Fix error timestamp setting on the decoder error path
        perf intel-pt: Fix missing 'instruction' events with 'q' option
        perf intel-pt: Fix next 'err' value, walking trace
        perf intel-pt: Fix state setting when receiving overflow (OVF) packet
        perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type
        perf intel-pt: Fix sync state when a PSB (synchronization) packet is found
        perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage
        perf tools: Prevent out-of-bounds access to registers
      bbdff6d5
    • Linus Torvalds's avatar
      Merge tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block · eccea80b
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "A few block fixes that should go into this release:
      
         - NVMe pull request:
              - set ana_log_size to 0 after freeing ana_log_buf (Hou Tao)
              - show subsys nqn for duplicate cntlids (Keith Busch)
              - disable namespace access for unsupported metadata (Keith
                Busch)
              - report write pointer for a full zone as zone start + zone len
                (Niklas Cassel)
              - fix use after free when disconnecting a reconnecting ctrl
                (Ruozhu Li)
              - fix a list corruption in nvmet-tcp (Sagi Grimberg)
      
         - Fix for a regression on DIO single bio async IO (Pavel)
      
         - ioprio seteuid fix (Davidlohr)
      
         - mtd fix that subsequently got reverted as it was broken, will get
           re-done and submitted for the next round
      
         - Two MD fixes via Song (Markus, zhangyue)"
      
      * tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
        Revert "mtd_blkdevs: don't scan partitions for plain mtdblock"
        block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)
        md: fix double free of mddev->private in autorun_array()
        md: fix update super 1.0 on rdev size change
        nvmet-tcp: fix possible list corruption for unexpected command failure
        block: fix single bio async DIO error handling
        nvme: fix use after free when disconnecting a reconnecting ctrl
        nvme-multipath: set ana_log_size to 0 after free ana_log_buf
        mtd_blkdevs: don't scan partitions for plain mtdblock
        nvme: report write pointer for a full zone as zone start + zone len
        nvme: disable namespace access for unsupported metadata
        nvme: show subsys nqn for duplicate cntlids
      eccea80b
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block · f152165a
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
       "A few fixes that are all bound for stable:
      
         - Two syzbot reports for io-wq that turned out to be separate fixes,
           but ultimately very closely related
      
         - io_uring task_work running on cancelations"
      
      * tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
        io-wq: check for wq exit after adding new worker task_work
        io_uring: ensure task_work gets run as part of cancelations
        io-wq: remove spurious bit clear on task_work addition
      f152165a
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · bd66be54
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "Two more I2C driver bugfixes"
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: mpc: Use atomic read and fix break condition
        i2c: virtio: fix completion handling
      bd66be54
    • Linus Torvalds's avatar
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · 2acdaf59
      Linus Torvalds authored
      Pull clk driver fixes from Stephen Boyd:
      
       - Fix qcom mux logic to look at the proper parent table member. Luckily
         this clk type isn't very common.
      
       - Don't kill clks on qcom systems that use Trion PLLs that are enabled
         out of the bootloader. We will simply skip programming the PLL rate
         if it's already done.
      
       - Use the proper clk_ops for the qcom sm6125 ICE clks.
      
       - Use module_platform_driver() in i.MX as it can be a module.
      
       - Fix a UAF in the versatile clk driver on an error path.
      
      * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
        clk: versatile: clk-icst: use after free on error path
        clk: qcom: sm6125-gcc: Swap ops of ice and apps on sdcc1
        clk: imx: use module_platform_driver
        clk: qcom: clk-alpha-pll: Don't reconfigure running Trion
        clk: qcom: regmap-mux: fix parent clock lookup
      2acdaf59
    • Linus Torvalds's avatar
      Merge tag 'devicetree-fixes-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux · a84e0b31
      Linus Torvalds authored
      Pull devicetree fixes from Rob Herring:
      
       - Revert schema checks on %.dtb targets. This was problematic for some
         external build tools.
      
       - A few DT binding example fixes
      
       - Add back dropped 'enet-phy-lane-no-swap' Ethernet PHY property
      
       - Drop erroneous if/then schema in nxp,imx7-mipi-csi2
      
       - Add a quirk to fix some interrupt controllers use of 'interrupt-map'
      
      * tag 'devicetree-fixes-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
        Revert "kbuild: Enable DT schema checks for %.dtb targets"
        dt-bindings: bq25980: Fixup the example
        dt-bindings: input: gpio-keys: Fix interrupts in example
        dt-bindings: net: Reintroduce PHY no lane swap binding
        dt-bindings: media: nxp,imx7-mipi-csi2: Drop bad if/then schema
        of/irq: Add a quirk for controllers with their own definition of interrupt-map
        dt-bindings: iio: adc: exynos-adc: Fix node name in example
      a84e0b31
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · df442a4e
      Linus Torvalds authored
      Merge misc fixes from Andrew Morton:
       "21 patches.
      
        Subsystems affected by this patch series: MAINTAINERS, mailmap, and mm
        (mlock, pagecache, damon, slub, memcg, hugetlb, and pagecache)"
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (21 commits)
        mm: bdi: initialize bdi_min_ratio when bdi is unregistered
        hugetlbfs: fix issue of preallocation of gigantic pages can't work
        mm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()
        mm/slub: fix endianness bug for alloc/free_traces attributes
        selftests/damon: split test cases
        selftests/damon: test debugfs file reads/writes with huge count
        selftests/damon: test wrong DAMOS condition ranges input
        selftests/damon: test DAMON enabling with empty target_ids case
        selftests/damon: skip test if DAMON is running
        mm/damon/vaddr-test: remove unnecessary variables
        mm/damon/vaddr-test: split a test function having >1024 bytes frame size
        mm/damon/vaddr: remove an unnecessary warning message
        mm/damon/core: remove unnecessary error messages
        mm/damon/dbgfs: remove an unnecessary error message
        mm/damon/core: use better timer mechanisms selection threshold
        mm/damon/core: fix fake load reports due to uninterruptible sleeps
        timers: implement usleep_idle_range()
        filemap: remove PageHWPoison check from next_uptodate_page()
        mailmap: update email address for Guo Ren
        MAINTAINERS: update kdump maintainers
        ...
      df442a4e
    • Thomas Gleixner's avatar
      Merge tag 'timers-v5.16-rc4' of... · aa073d8b
      Thomas Gleixner authored
      Merge tag 'timers-v5.16-rc4' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent
      
      Pull timer fixes from Daniel Lezcano:
      
        - Fix build error with clang and some kernel configuration on the
          arm64 architected timer by inlining the
          erratum_set_next_event_generic() function (Marc Zyngier)
      
        - Fix probe error on the dw_apb_timer_of driver by fixing the
          incorrect condition previously introduced (Alexey Sheplyakov)
      
      Link: https://lore.kernel.org/r/429b796d-9395-4ca8-81f3-30911f80a9a9@linaro.org
      aa073d8b
    • Miaoqian Lin's avatar
      perf python: Fix NULL vs IS_ERR_OR_NULL() checking · 9937e8da
      Miaoqian Lin authored
      The function trace_event__tp_format_id may return ERR_PTR(-ENOMEM).  Use
      IS_ERR_OR_NULL to check tp_format.
      Signed-off-by: default avatarMiaoqian Lin <linmq006@gmail.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Song Liu <song@kernel.org>
      Link: http://lore.kernel.org/lkml/20211211053856.19827-1-linmq006@gmail.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      9937e8da
    • Adrian Hunter's avatar
      perf intel-pt: Fix error timestamp setting on the decoder error path · 6665b8e4
      Adrian Hunter authored
      An error timestamp shows the last known timestamp for the queue, but this
      is not updated on the error path. Fix by setting it.
      
      Fixes: f4aa0819 ("perf tools: Add Intel PT decoder")
      Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: stable@vger.kernel.org # v5.15+
      Link: https://lore.kernel.org/r/20211210162303.2288710-8-adrian.hunter@intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      6665b8e4
    • Adrian Hunter's avatar
      perf intel-pt: Fix missing 'instruction' events with 'q' option · a882cc94
      Adrian Hunter authored
      FUP packets contain IP information, which makes them also an 'instruction'
      event in 'hop' mode i.e. the itrace 'q' option.  That wasn't happening, so
      restructure the logic so that FUP events are added along with appropriate
      'instruction' and 'branch' events.
      
      Fixes: 7c1b16ba ("perf intel-pt: Add support for decoding FUP/TIP only")
      Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: stable@vger.kernel.org # v5.15+
      Link: https://lore.kernel.org/r/20211210162303.2288710-7-adrian.hunter@intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a882cc94
    • Adrian Hunter's avatar
      perf intel-pt: Fix next 'err' value, walking trace · a32e6c5d
      Adrian Hunter authored
      Code after label 'next:' in intel_pt_walk_trace() assumes 'err' is zero,
      but it may not be, if arrived at via a 'goto'. Ensure it is zero.
      
      Fixes: 7c1b16ba ("perf intel-pt: Add support for decoding FUP/TIP only")
      Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: stable@vger.kernel.org # v5.15+
      Link: https://lore.kernel.org/r/20211210162303.2288710-6-adrian.hunter@intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a32e6c5d