linaro-kernel July 2014

linaro-kernel@lists.linaro.org

85 participants
233 discussions

stable boot: 56 boots: 56 pass, 0 fail (v3.15.5)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/stable/v3.15.5 Tree/Branch: stable Git describe: v3.15.5 Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.7 sec: PASS da850-evm 0 min 16.5 sec: PASS arm-tegra_defconfig ------------------- tegra30-beaver 0 min 18.2 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.2 sec: PASS omap5-uevm 1 min 44.0 sec: PASS sun7i-a20-cubieboard2 0 min 12.8 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.1 sec: PASS armada-370-mirabox 0 min 20.9 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 41.3 sec: PASS am335x-boneblack 0 min 22.9 sec: PASS omap3-beagle-xm 0 min 48.3 sec: PASS legacy,3530beagle 0 min 27.1 sec: PASS (Warnings: 1) omap4-panda 0 min 59.0 sec: PASS omap3-overo-tobi 0 min 24.2 sec: PASS (Warnings: 1) am335x-bone 0 min 25.0 sec: PASS omap3-overo-storm-tobi 0 min 25.1 sec: PASS omap5-uevm 0 min 59.0 sec: PASS omap3-n900 0 min 17.7 sec: PASS (Warnings: 1) legacy,n900 0 min 17.1 sec: PASS (Warnings: 1) omap4-panda-es 0 min 54.3 sec: PASS legacy,3730storm 0 min 20.9 sec: PASS legacy,3530overo 0 min 22.4 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- qcom-apq8074-dragonboard 0 min 20.2 sec: PASS ste-snowball 1 min 18.7 sec: PASS tegra30-beaver 0 min 17.9 sec: PASS am335x-boneblack 0 min 22.3 sec: PASS omap3-beagle-xm 0 min 47.6 sec: PASS sun7i-a20-cubieboard2 0 min 12.8 sec: PASS armada-370-mirabox 0 min 22.2 sec: PASS omap4-panda 0 min 55.9 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.4 sec: PASS sun4i-a10-cubieboard 0 min 17.3 sec: PASS bcm28155-ap 0 min 24.8 sec: PASS omap3-overo-tobi 0 min 25.9 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 15.9 sec: PASS am335x-bone 0 min 23.9 sec: PASS omap3-overo-storm-tobi 0 min 24.9 sec: PASS omap5-uevm 1 min 46.8 sec: PASS omap3-n900 0 min 15.9 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 14.8 sec: PASS omap4-panda-es 0 min 55.7 sec: PASS imx6dl-wandboard,wand-dual 0 min 15.8 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 11.3 sec: PASS sun4i-a10-cubieboard 0 min 14.0 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 24.0 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 32.0 sec: PASS exynos5250-arndale 0 min 31.0 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 16.4 sec: PASS imx6dl-wandboard,wand-solo 0 min 16.5 sec: PASS imx6q-wandboard 0 min 15.0 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 28.1 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 26.7 sec: PASS armada-370-mirabox 0 min 22.7 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 22.5 sec: PASS armada-370-mirabox 0 min 20.4 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 15.8 sec: PASS

9 years, 11 months

stable boot: 17 boots: 17 pass, 0 fail (v3.10.48)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/stable/v3.10.48 Tree/Branch: stable Git describe: v3.10.48 Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 17.7 sec: PASS arm-tegra_defconfig ------------------- tegra30-beaver 0 min 19.7 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 41.7 sec: PASS omap3-beagle-xm 0 min 50.8 sec: PASS legacy,3530beagle 0 min 27.0 sec: PASS omap4-panda 0 min 56.8 sec: PASS omap3-tobi 0 min 22.8 sec: PASS am335x-bone 0 min 24.0 sec: PASS legacy,n900 0 min 17.2 sec: PASS omap4-panda-es 0 min 56.5 sec: PASS legacy,3730storm 0 min 24.7 sec: PASS legacy,3530overo 0 min 25.4 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 16.6 sec: PASS imx6dl-wandboard,wand-solo 0 min 14.7 sec: PASS arm-exynos_defconfig -------------------- exynos5250-arndale 0 min 30.9 sec: PASS arm-da8xx_omapl_defconfig ------------------------- legacy,da850evm 0 min 15.5 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 20.2 sec: PASS

9 years, 11 months

stable boot: 51 boots: 51 pass, 0 fail (v3.14.12)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/stable/v3.14.12 Tree/Branch: stable Git describe: v3.14.12 Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 17.8 sec: PASS arm-tegra_defconfig ------------------- tegra30-beaver 0 min 17.9 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.0 sec: PASS omap5-uevm 1 min 46.1 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 12.6 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 16.6 sec: PASS imx6dl-wandboard,wand-solo 0 min 16.5 sec: PASS imx6q-wandboard 0 min 14.8 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 41.4 sec: PASS am335x-boneblack 0 min 23.2 sec: PASS omap3-beagle-xm 0 min 48.9 sec: PASS legacy,3530beagle 0 min 26.4 sec: PASS (Warnings: 1) omap4-panda 0 min 58.0 sec: PASS omap3-overo-tobi 0 min 24.1 sec: PASS (Warnings: 1) am335x-bone 0 min 25.0 sec: PASS omap3-overo-storm-tobi 0 min 26.6 sec: PASS omap5-uevm 0 min 58.3 sec: PASS (Warnings: 1) omap3-n900 0 min 18.2 sec: PASS (Warnings: 1) legacy,n900 0 min 17.9 sec: PASS (Warnings: 1) omap4-panda-es 0 min 58.1 sec: PASS legacy,3730storm 0 min 20.6 sec: PASS legacy,3530overo 0 min 22.5 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- ste-snowball 1 min 15.0 sec: PASS tegra30-beaver 0 min 17.8 sec: PASS am335x-boneblack 0 min 21.8 sec: PASS omap3-beagle-xm 0 min 50.9 sec: PASS sun7i-a20-cubieboard2 0 min 12.4 sec: PASS armada-370-mirabox 0 min 22.1 sec: PASS omap4-panda 0 min 54.1 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.0 sec: PASS sun4i-a10-cubieboard 0 min 17.1 sec: PASS bcm28155-ap 0 min 26.8 sec: PASS omap3-overo-tobi 0 min 22.3 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 15.7 sec: PASS am335x-bone 0 min 23.4 sec: PASS omap3-overo-storm-tobi 0 min 25.1 sec: PASS omap5-uevm 1 min 44.5 sec: PASS (Warnings: 1) omap3-n900 0 min 15.8 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 14.7 sec: PASS omap4-panda-es 0 min 53.8 sec: PASS imx6dl-wandboard,wand-dual 0 min 15.7 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 26.5 sec: PASS armada-370-mirabox 0 min 22.5 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 22.6 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 32.0 sec: PASS exynos5250-arndale 0 min 30.8 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 30.7 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 11.2 sec: PASS sun4i-a10-cubieboard 0 min 11.2 sec: PASS arm-da8xx_omapl_defconfig ------------------------- legacy,da850evm 0 min 16.6 sec: PASS (Warnings: 1) arm-sama5_defconfig ------------------- sama5d35ek 0 min 15.7 sec: PASS

9 years, 11 months

mainline boot: 64 boots: 64 pass, 0 fail (v3.16-rc4-39-g191d385)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/mainline/v3.16-rc4-39-g191d385 Tree/Branch: mainline Git describe: v3.16-rc4-39-g191d385 Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.6 sec: PASS da850-evm 0 min 16.7 sec: PASS arm-tegra_defconfig ------------------- tegra124-jetson-tk1 0 min 18.6 sec: PASS tegra30-beaver 0 min 18.2 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- tegra124-jetson-tk1 0 min 18.6 sec: PASS armada-xp-openblocks-ax3-4 0 min 24.6 sec: PASS omap5-uevm 1 min 44.6 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 13.7 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.4 sec: PASS armada-370-mirabox 0 min 21.1 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 41.0 sec: PASS am335x-boneblack 0 min 23.2 sec: PASS omap3-beagle-xm 0 min 50.3 sec: PASS legacy,3530beagle 0 min 23.9 sec: PASS (Warnings: 1) omap4-panda 0 min 56.3 sec: PASS (Warnings: 1) omap3-overo-tobi 0 min 24.0 sec: PASS am335x-bone 0 min 24.9 sec: PASS omap3-overo-storm-tobi 0 min 25.6 sec: PASS omap5-uevm 0 min 58.9 sec: PASS (Warnings: 1) omap3-n900 0 min 18.0 sec: PASS legacy,n900 0 min 17.9 sec: PASS (Warnings: 1) omap4-panda-es 0 min 58.5 sec: PASS (Warnings: 1) legacy,3730storm 0 min 23.5 sec: PASS legacy,3530overo 0 min 22.2 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 16.2 sec: PASS am335x-boneblack 0 min 22.7 sec: PASS sun7i-a20-cubieboard2 0 min 13.4 sec: PASS sun4i-a10-cubieboard 0 min 18.1 sec: PASS exynos5410-smdk5410 0 min 29.6 sec: PASS am335x-bone 0 min 24.5 sec: PASS tegra124-jetson-tk1 0 min 18.6 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 58.1 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 14.8 sec: PASS imx6dl-wandboard,wand-dual 0 min 16.1 sec: PASS ste-snowball 1 min 15.3 sec: PASS tegra30-beaver 0 min 28.7 sec: PASS omap3-n900 0 min 17.2 sec: PASS qcom-apq8074-dragonboard 0 min 20.5 sec: PASS bcm28155-ap 0 min 28.2 sec: PASS omap3-overo-tobi 0 min 23.0 sec: PASS omap3-overo-storm-tobi 0 min 22.2 sec: PASS omap3-beagle-xm 0 min 55.9 sec: PASS exynos5420-arndale-octa 0 min 41.1 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.8 sec: PASS omap5-uevm 1 min 42.3 sec: PASS (Warnings: 1) omap4-panda-es 0 min 55.9 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 31.9 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 12.2 sec: PASS sun4i-a10-cubieboard 0 min 12.5 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 17.8 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 23.6 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 39.1 sec: PASS exynos5250-arndale 0 min 32.1 sec: PASS exynos5410-smdk5410 0 min 30.4 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 16.3 sec: PASS imx6dl-wandboard,wand-solo 0 min 16.5 sec: PASS imx6q-wandboard 0 min 15.1 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 27.7 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 27.1 sec: PASS armada-370-mirabox 0 min 23.1 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 22.9 sec: PASS armada-370-mirabox 0 min 20.6 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 21.1 sec: PASS (Warnings: 1)

9 years, 11 months

[PATCH 0/3] ARM: perf: allow tracing with kernel tracepoints events

by Jean Pihet

- Robustify the user backtrace code, as done on other architectures. - Provide the symbols resolution when triggering from tracepoints. Big thanks to Steve Capper for the help in debugging and rephrasing the commits descriptions. Stress tested with perf record and tracepoints triggering (-e <tracepoint>), with unwinding using fp (--call-graph fp) and dwarf info (--call-graph dwarf). Jean Pihet (3): ARM: perf: Check that current->mm is alive before getting user callchain ARM: perf: disable the pagefault handler when reading from user space ARM: perf: allow tracing with kernel tracepoints events arch/arm/include/asm/perf_event.h | 19 +++++++++++++++++++ arch/arm/kernel/perf_event.c | 13 +++++++++++-- 2 files changed, 30 insertions(+), 2 deletions(-) -- 1.8.1.2

9 years, 11 months

next boot: 64 boots: 63 pass, 1 fail (next-20140709)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/next/next-20140709 Tree/Branch: next Git describe: next-20140709 Failed boot tests ================= exynos5420-arndale-octa: FAIL: arm-exynos_defconfig http://armcloud.us/kernel-ci/next/next-20140709/arm-exynos_defconfig/boot-e… Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.3 sec: PASS da850-evm 0 min 16.3 sec: PASS arm-tegra_defconfig ------------------- tegra124-jetson-tk1 0 min 19.1 sec: PASS tegra30-beaver 0 min 21.7 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- tegra124-jetson-tk1 0 min 18.7 sec: PASS armada-xp-openblocks-ax3-4 0 min 24.7 sec: PASS omap5-uevm 1 min 57.0 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 13.8 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.1 sec: PASS armada-370-mirabox 0 min 21.1 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 41.0 sec: PASS am335x-boneblack 0 min 23.1 sec: PASS omap3-beagle-xm 0 min 51.5 sec: PASS legacy,3530beagle 0 min 26.0 sec: PASS (Warnings: 1) omap4-panda 0 min 53.7 sec: PASS omap3-overo-tobi 0 min 24.1 sec: PASS am335x-bone 0 min 24.9 sec: PASS omap3-overo-storm-tobi 0 min 26.2 sec: PASS omap5-uevm 0 min 57.3 sec: PASS (Warnings: 1) omap3-n900 0 min 18.0 sec: PASS legacy,n900 0 min 17.4 sec: PASS (Warnings: 2) omap4-panda-es 0 min 53.7 sec: PASS (Warnings: 1) legacy,3730storm 0 min 21.2 sec: PASS legacy,3530overo 0 min 22.3 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 16.1 sec: PASS am335x-boneblack 0 min 22.9 sec: PASS sun7i-a20-cubieboard2 0 min 13.7 sec: PASS sun4i-a10-cubieboard 0 min 13.4 sec: PASS exynos5410-smdk5410 0 min 23.0 sec: PASS am335x-bone 0 min 24.6 sec: PASS tegra124-jetson-tk1 0 min 18.8 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 54.8 sec: PASS imx6q-wandboard 0 min 14.7 sec: PASS imx6dl-wandboard,wand-dual 0 min 16.3 sec: PASS ste-snowball 1 min 33.0 sec: PASS tegra30-beaver 0 min 21.2 sec: PASS omap3-n900 0 min 17.5 sec: PASS qcom-apq8074-dragonboard 0 min 19.7 sec: PASS bcm28155-ap 0 min 27.2 sec: PASS omap3-overo-tobi 0 min 23.1 sec: PASS omap3-overo-storm-tobi 0 min 25.2 sec: PASS omap3-beagle-xm 0 min 54.2 sec: PASS exynos5420-arndale-octa 0 min 34.6 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.7 sec: PASS omap5-uevm 2 min 0.1 sec: PASS (Warnings: 1) omap4-panda-es 0 min 58.8 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 32.3 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 12.2 sec: PASS sun4i-a10-cubieboard 0 min 12.0 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 18.8 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 23.9 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 2 min 0.3 sec: FAIL exynos5250-arndale 0 min 30.7 sec: PASS exynos5410-smdk5410 0 min 21.0 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 16.9 sec: PASS imx6dl-wandboard,wand-solo 0 min 17.0 sec: PASS imx6q-wandboard 0 min 15.6 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 30.6 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 27.3 sec: PASS armada-370-mirabox 0 min 22.8 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 22.9 sec: PASS armada-370-mirabox 0 min 20.6 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 16.1 sec: PASS (Warnings: 1)

9 years, 11 months

[RFC] tick: don't call hrtimer_active() after starting tick-sched hrtimer

by Viresh Kumar

hrtimer_start*() family never fails to enqueue a hrtimer to a clock-base. In case the hrtimer was in past and getting added on this_cpu's clock-base, we raise a softirq and exit. At several places in the kernel, we try to make sure if hrtimer was added properly or not by calling hrtimer_active(), like: hrtimer_start(timer, expires, mode); if (hrtimer_active(timer)) { /* Added successfully */ } else { /* Was added in the past */ } As hrtimer_start*() never fails, hrtimer_active() is guaranteed to return 'true'. So, there is no point calling hrtimer_active(). Also this is done in while loop at several places, which isn't required if hrtimer_start*() never fails. Drop those loops as well. This patch only updates tick-sched.c file currently, others will be fixed if above explanation holds true. Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- This was also raised here and didn't attract many: https://www.lkml.org/lkml/2014/7/3/559 Pushed here: git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux.git tick/remove-stale-hrtimer_active kernel/time/tick-sched.c | 45 ++++++++++++++++++--------------------------- 1 file changed, 18 insertions(+), 27 deletions(-) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 6558b7a..66ca5ab 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -658,9 +658,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, if (ts->nohz_mode == NOHZ_MODE_HIGHRES) { hrtimer_start(&ts->sched_timer, expires, HRTIMER_MODE_ABS_PINNED); - /* Check, if the timer was already in the past */ - if (hrtimer_active(&ts->sched_timer)) - goto out; + goto out; } else if (!tick_program_event(expires, 0)) goto out; /* @@ -844,24 +842,25 @@ static void tick_nohz_restart(struct tick_sched *ts, ktime_t now) hrtimer_cancel(&ts->sched_timer); hrtimer_set_expires(&ts->sched_timer, ts->last_tick); - while (1) { - /* Forward the time to expire in the future */ - hrtimer_forward(&ts->sched_timer, now, tick_period); + /* Forward the time to expire in the future */ + hrtimer_forward(&ts->sched_timer, now, tick_period); - if (ts->nohz_mode == NOHZ_MODE_HIGHRES) { - hrtimer_start_expires(&ts->sched_timer, - HRTIMER_MODE_ABS_PINNED); - /* Check, if the timer was already in the past */ - if (hrtimer_active(&ts->sched_timer)) - break; - } else { - if (!tick_program_event( - hrtimer_get_expires(&ts->sched_timer), 0)) - break; - } + if (ts->nohz_mode == NOHZ_MODE_HIGHRES) { + hrtimer_start_expires(&ts->sched_timer, + HRTIMER_MODE_ABS_PINNED); + return; + } + + while (1) { + if (!tick_program_event(hrtimer_get_expires(&ts->sched_timer), + 0)) + break; /* Reread time and update jiffies */ now = ktime_get(); tick_do_update_jiffies64(now); + + /* Forward the time to expire in the future */ + hrtimer_forward(&ts->sched_timer, now, tick_period); } } @@ -1104,7 +1103,6 @@ early_param("skew_tick", skew_tick); void tick_setup_sched_timer(void) { struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched); - ktime_t now = ktime_get(); /* * Emulate tick processing via per-CPU hrtimers: @@ -1123,15 +1121,8 @@ void tick_setup_sched_timer(void) hrtimer_add_expires_ns(&ts->sched_timer, offset); } - for (;;) { - hrtimer_forward(&ts->sched_timer, now, tick_period); - hrtimer_start_expires(&ts->sched_timer, - HRTIMER_MODE_ABS_PINNED); - /* Check, if the timer was already in the past */ - if (hrtimer_active(&ts->sched_timer)) - break; - now = ktime_get(); - } + hrtimer_forward(&ts->sched_timer, ktime_get(), tick_period); + hrtimer_start_expires(&ts->sched_timer, HRTIMER_MODE_ABS_PINNED); #ifdef CONFIG_NO_HZ_COMMON if (tick_nohz_enabled) { -- 2.0.0.rc2

9 years, 11 months

[PATCH RFC v5 0/5] Add support for Hisilicon SMMU architecture

by Zhen Lei

Changes in v5: - Put all registers(exclude translation table associated) definition into each smmu private file. Changes in v4: - Add device_remove hook, so hisi-smmu and smmu-v3 can reclaim other resources. like dynamic allocted memory. And s1cbt and s2cbt memory are now allocated in driver(Previously, I hope BIOS to do this). - Fix bugs according to review comments. CB_FAR_LOW, CB_FAR_HIGH are (n) << 3. - Change context_map in struct arm_smmu_device to dynamic allocate memory. - Merge original patch 3 and 4 into one patch. Changes in v3: - Split arm-smmu.c into three files: arm-smmu.h arm-smmu-base.c arm-smmu.c. To build stardard arm-smmu driver, use these three files. To build hisilicon smmu driver, replace arm-smmu.c with hisi-smmu.c. Now, hisi smmu driver is not dependent on arm smmu driver. They can seperate exist, or coexist, when both building and running time. - Give up Hisilicon private properties. - Place hooks from global variable into struct arm_smmu_device. And deleted three hooks: tlb_sync, flush_pgtable and dt_cfg_probe. - Share the codes which are used to limit the size of smmu ias,oas,ubs. - Add two little patchs about code style, variable types, etc. Changes in v2: - Split Hisilicon smmu implementation in a separate file, hisi-smmu.c - Refactor arm-smmu.c. Some direct call hardware dependent functions replaced with hooks. And move common struct and marco definition into arm-smmu.h - Merge the description of Hisilicon private properties into arm,smmu.txt I tried to merge hisi-smmu driver into arm-smmu.c, but it looks impossible. The biggest problem is that too many registers are diffrent: the base address, the field definition, or present only on one side. And if I use #if, hisi-smmu and arm-smmu can not coexist in one binary file. Almost need 20 #if. In addition, SMMUv3 is also not compatible with v2. And something is similar with hisi-smmu: registers definition and fault handler is different with v2, but can reuse fdt configuration and memory map. Hence, arm-smmu-base.c and arm-smmu.h should be shared by all SMMUs(v2, v3 and hisi), and each smmu will own a private file, like: arm-smmu.c(for v1 and v2), arm-smmu-v3.c, hisi-smmu.c All marcos which are not used in arm-smmu-base.c and not shared by all SMMUs, have been placed into each private file, some are duplicated. But I think it will not bring any maintenance headaches, except when need rename the marcos. After all, it is hardware dependent. Zhen Lei (5): iommu/arm: change some structure member types in arm_smmu_device iommu/arm: eliminate errors reported by checkpatch iommu/arm: apart arm-smmu.c to share code with other SMMUs iommu/hisilicon: Add support for Hisilicon Ltd. System MMU architecture documentation/iommu: Add description of Hisilicon SMMU private binding .../devicetree/bindings/iommu/arm,smmu.txt | 2 + drivers/iommu/Kconfig | 14 + drivers/iommu/Makefile | 2 + drivers/iommu/arm-smmu-base.c | 1085 +++++++++++++++++ drivers/iommu/arm-smmu.c | 1247 +------------------- drivers/iommu/arm-smmu.h | 258 ++++ drivers/iommu/hisi-smmu.c | 575 +++++++++ 7 files changed, 1985 insertions(+), 1198 deletions(-) create mode 100644 drivers/iommu/arm-smmu-base.c create mode 100644 drivers/iommu/arm-smmu.h create mode 100644 drivers/iommu/hisi-smmu.c -- 1.8.0

9 years, 11 months

mainline boot: 64 boots: 64 pass, 0 fail (v3.16-rc4-28-g163e407)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/mainline/v3.16-rc4-28-g163e407 Tree/Branch: mainline Git describe: v3.16-rc4-28-g163e407 Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.6 sec: PASS da850-evm 0 min 16.4 sec: PASS arm-tegra_defconfig ------------------- tegra124-jetson-tk1 0 min 18.6 sec: PASS tegra30-beaver 0 min 18.3 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- tegra124-jetson-tk1 0 min 18.6 sec: PASS armada-xp-openblocks-ax3-4 0 min 24.6 sec: PASS omap5-uevm 1 min 46.3 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 13.8 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.4 sec: PASS armada-370-mirabox 0 min 21.2 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 41.0 sec: PASS am335x-boneblack 0 min 22.8 sec: PASS omap3-beagle-xm 0 min 50.4 sec: PASS legacy,3530beagle 0 min 25.2 sec: PASS (Warnings: 1) omap4-panda 0 min 52.4 sec: PASS (Warnings: 1) omap3-overo-tobi 0 min 24.1 sec: PASS am335x-bone 0 min 24.9 sec: PASS omap3-overo-storm-tobi 0 min 26.0 sec: PASS omap5-uevm 0 min 59.6 sec: PASS (Warnings: 1) omap3-n900 0 min 17.1 sec: PASS legacy,n900 0 min 17.8 sec: PASS (Warnings: 1) omap4-panda-es 0 min 55.9 sec: PASS (Warnings: 1) legacy,3730storm 0 min 20.3 sec: PASS legacy,3530overo 0 min 21.9 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 16.0 sec: PASS am335x-boneblack 0 min 22.9 sec: PASS sun7i-a20-cubieboard2 0 min 13.5 sec: PASS sun4i-a10-cubieboard 0 min 18.2 sec: PASS exynos5410-smdk5410 0 min 29.7 sec: PASS am335x-bone 0 min 24.4 sec: PASS tegra124-jetson-tk1 0 min 18.8 sec: PASS armada-370-mirabox 0 min 22.3 sec: PASS omap4-panda 0 min 56.0 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 14.9 sec: PASS imx6dl-wandboard,wand-dual 0 min 15.9 sec: PASS ste-snowball 1 min 15.7 sec: PASS tegra30-beaver 0 min 20.6 sec: PASS omap3-n900 0 min 16.2 sec: PASS qcom-apq8074-dragonboard 0 min 20.6 sec: PASS bcm28155-ap 0 min 27.3 sec: PASS omap3-overo-tobi 0 min 22.8 sec: PASS omap3-overo-storm-tobi 0 min 24.9 sec: PASS omap3-beagle-xm 0 min 53.7 sec: PASS exynos5420-arndale-octa 0 min 40.9 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.6 sec: PASS omap5-uevm 1 min 42.8 sec: PASS (Warnings: 1) omap4-panda-es 0 min 57.7 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 32.1 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 12.4 sec: PASS sun4i-a10-cubieboard 0 min 17.0 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 19.1 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 24.4 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 39.6 sec: PASS exynos5250-arndale 0 min 30.4 sec: PASS exynos5410-smdk5410 0 min 28.2 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 16.4 sec: PASS imx6dl-wandboard,wand-solo 0 min 16.5 sec: PASS imx6q-wandboard 0 min 15.1 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 31.1 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 27.2 sec: PASS armada-370-mirabox 0 min 22.8 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 22.8 sec: PASS armada-370-mirabox 0 min 20.7 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 16.2 sec: PASS (Warnings: 1)

9 years, 11 months

[PATCH] regulator: core: Still free GPIOs using gpio_free()

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> Even though we mostly use GPIO descriptors internally we still use gpio_request_one() to request so we need to pair that with gpio_free() to release the GPIO. Reported-by: Linus Walleij <linus.walleij(a)linaro.org> Signed-off-by: Mark Brown <broonie(a)linaro.org> --- drivers/regulator/core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index c563d93125cd..80381409f856 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1710,7 +1710,12 @@ static void regulator_ena_gpio_free(struct regulator_dev *rdev) if (pin->gpiod == rdev->ena_pin->gpiod) { if (pin->request_count <= 1) { pin->request_count = 0; - gpiod_put(pin->gpiod); + /* + * Since we requested with gpio_request_one() + * we still need to free with gpio_free() + * for now. + */ + gpio_free(desc_to_gpio(pin->gpiod)); list_del(&pin->list); kfree(pin); } else { -- 2.0.0

9 years, 11 months

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linaro-kernel July 2014