linaro-kernel November 2013

linaro-kernel@lists.linaro.org

85 participants
204 discussions

queue boot: 25 pass, 0 fail (v3.11.8-25-gfa0889b)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: queue Git describe: v3.11.8-25-gfa0889b Full Report =========== omap2plus_defconfig ------------------- omap3-beagle-xm PASS: 0 min 53.5 sec am335x-bone PASS: 0 min 26.5 sec omap4-panda PASS: 1 min 8.2 sec omap4-panda-es PASS: 1 min 4.9 sec omap3-tobi,3730storm PASS: 0 min 24.4 sec omap3-tobi,3530overo PASS: 0 min 21.6 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 15.3 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 15.8 sec imx6dl-wandboard,wand-solo PASS: 0 min 15.6 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 21.9 sec armada-370-mirabox PASS: 0 min 19.9 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 29.6 sec multi_v7_defconfig ------------------ tegra30-beaver PASS: 0 min 16.6 sec omap3-beagle-xm PASS: 0 min 51.8 sec armada-370-mirabox PASS: 0 min 20.5 sec am335x-bone PASS: 0 min 33.6 sec armada-xp-openblocks-ax3-4 PASS: 0 min 23.0 sec sun4i-a10-cubieboard PASS: 0 min 12.9 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.1 sec omap4-panda PASS: 1 min 3.1 sec omap4-panda-es PASS: 1 min 6.3 sec omap3-tobi,3730storm PASS: 0 min 19.4 sec imx6dl-wandboard,wand-dual PASS: 0 min 16.3 sec omap3-tobi,3530overo PASS: 0 min 20.4 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.2 sec

11 years, 5 months

[PATCH 1/2] sched/nohz: add debugfs control over sched_tick_max_deferment

by Kevin Hilman

Allow debugfs override of sched_tick_max_deferment in order to ease finding/fixing the remaining issues with full nohz. The value to be written is in jiffies, and -1 means the max deferment is disabled (scheduler_tick_max_deferment() returns KTIME_MAX.) Cc: Frederic Weisbecker <fweisbec(a)gmail.com> Signed-off-by: Kevin Hilman <khilman(a)linaro.org> --- kernel/sched/core.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 5ac63c9..4b1fe3e 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2175,6 +2175,8 @@ void scheduler_tick(void) } #ifdef CONFIG_NO_HZ_FULL +static u32 sched_tick_max_deferment = HZ; + /** * scheduler_tick_max_deferment * @@ -2193,13 +2195,25 @@ u64 scheduler_tick_max_deferment(void) struct rq *rq = this_rq(); unsigned long next, now = ACCESS_ONCE(jiffies); - next = rq->last_sched_tick + HZ; + if (sched_tick_max_deferment == -1) + return KTIME_MAX; + + next = rq->last_sched_tick + sched_tick_max_deferment; if (time_before_eq(next, now)) return 0; return jiffies_to_usecs(next - now) * NSEC_PER_USEC; } + +static __init int sched_nohz_full_init_debug(void) +{ + debugfs_create_u32("sched_tick_max_deferment", 0644, NULL, + &sched_tick_max_deferment); + + return 0; +} +late_initcall(sched_nohz_full_init_debug); #endif notrace unsigned long get_parent_ip(unsigned long addr) -- 1.8.3

11 years, 5 months

next boot: 31 pass, 1 fail (next-20131118)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: next Git describe: next-20131118 Failed boot tests (console logs at the end) =========================================== sun4i-a10-cubieboard: FAIL: multi_v7_defconfig Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 27.8 sec omap3-beagle-xm PASS: 0 min 52.9 sec am335x-bone PASS: 0 min 26.6 sec omap4-panda PASS: 1 min 4.6 sec omap4-panda-es PASS: 1 min 2.7 sec omap3-tobi,3730storm PASS: 0 min 23.6 sec omap3-tobi,3530overo PASS: 0 min 21.9 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 17.0 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 18.1 sec imx6dl-wandboard,wand-solo PASS: 0 min 18.2 sec imx6q-wandboard PASS: 0 min 15.4 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 22.2 sec armada-370-mirabox PASS: 0 min 20.0 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 29.5 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 28.4 sec tegra30-beaver PASS: 0 min 16.6 sec am335x-boneblack PASS: 0 min 34.7 sec omap3-beagle-xm PASS: 0 min 49.6 sec sun7i-a20-cubieboard2 PASS: 0 min 13.0 sec armada-370-mirabox PASS: 0 min 20.6 sec omap4-panda PASS: 1 min 2.6 sec omap4-panda-es PASS: 1 min 2.5 sec armada-xp-openblocks-ax3-4 PASS: 0 min 22.8 sec sun4i-a10-cubieboard FAIL: 0 min 6.9 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.6 sec am335x-bone PASS: 0 min 33.5 sec imx6q-wandboard PASS: 0 min 16.9 sec omap3-tobi,3730storm PASS: 0 min 22.6 sec imx6dl-wandboard,wand-dual PASS: 0 min 17.8 sec omap3-tobi,3530overo PASS: 0 min 19.9 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 31.4 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.4 sec Console logs for failures ========================= multi_v7_defconfig ------------------ sun4i-a10-cubieboard: FAIL: last 24 lines of boot log: ------------------------------------------------------ U-Boot 2011.09-rc1 (Nov 26 2012 - 14:01:52) Allwinner Technology arm-none-linux-gnueabi-gcc (Sourcery G++ Lite 2010.09-50) 4.5.1 GNU ld (Sourcery G++ Lite 2010.09-50) 2.20.51.20100809 sunxi#setenv ethaddr 2e:40:70:f0:12:08 setenv ethaddr 2e:40:70:f0:12:08 sunxi#setenv bootargs console=ttyS0,115200 earlyprintk rw root=/dev/mmcblk0p2 rootwait rootfstype=ext4 setenv bootargs console=ttyS0,115200 earlyprintk rw root=/dev/mmcblk0p2 rootwait rootfstype=ext4 sunxi#setenv netargs 'setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}::::192.168.1.254:none' setenv netargs 'setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}::::192.168.1.254:none' sunxi#setenv initrd_high 0xffffffff setenv initrd_high 0xffffffff sunxi#if test -n ${initenv}; then run initenv; fi if test -n ${initenv}; then run initenv; fi sunxi#if test -n ${preboot}; then run preboot; fi if test -n ${preboot}; then run preboot; fi sunxi#setenv autoload no; setenv autoboot no setenv autoload no; setenv autoboot no sunxi#dhcp dhcp Unknown command 'dhcp' - try 'help' sunxi#~$off # PYBOOT: Exception: u-boot: does not support DHCP. Giving up. # PYBOOT: Time: 6.87 seconds. # PYBOOT: Result: FAIL

11 years, 5 months

[PATCH] PM: Remove unnecessary !!

by Viresh Kumar

Double ! or !! are normally required to get 0 or 1 out of a expression. A comparision always returns 0 or 1 and hence there is no need to apply double ! over it again. Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- kernel/power/suspend.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 62ee437..90b3d93 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -39,7 +39,7 @@ static const struct platform_suspend_ops *suspend_ops; static bool need_suspend_ops(suspend_state_t state) { - return !!(state > PM_SUSPEND_FREEZE); + return state > PM_SUSPEND_FREEZE; } static DECLARE_WAIT_QUEUE_HEAD(suspend_freeze_wait_head); -- 1.7.12.rc2.18.g61b472e

11 years, 5 months

[PATCH v2] ARM: signal: fix armv7-m build issue in sigreturn_codes.S

by Victor Kamensky

Hi, Here is version 2 of fix to armv7-m build failure in sigreturn_codes.S. It is based on Dave's suggestion on [1]. Basically it set arch to arm4t explicitly if CONFIG_CPU_THUMBONLY is set. That enables both arm and thumb opcodes and code merged with the rest of image. Version 1 [2] used conditional compilation. Fix was tested linux-next with efm32_defconfig build (along with few other fixes) rmk-next BE/LE arndale build/boot and LTP rt_sigaction0? tests run Dave, I've added your name with Suggested-by tag, please let me know if it is not OK with you, I'll remove it then. Uwe, is it possible for you to test that this fix runs on efm32? Sorry, for multiple requests. To address concern about fragility of proposed solution I looked binutils bfd/elf32-arm.c https://sourceware.org/git/?p=binutils.git;a=blob;f=bfd/elf32-arm.c;h=5af16… Attributes merge deals with couple things: Tag_CPU_arch: tag_cpu_arch_combine function deals with it and from its tables it seems that v4t is compatible with any latter version and resulting value will come from latter version. I.e v4t and v7 (v7m) would merge fine. Tag_CPU_arch_profile: since in case of '.arch armv4t' profile attribute is not generated it is merged fine with any other profile. Unlike in case of '.arch armv7a' and '.arch armv7m' profile values would be 'Application' and 'Microcontroller' and those conflict. Above logic seems to be universal, so other linkers may follow it too. So it seems it is good to use '.arch armv4t' with armv7m code. Thanks, Victor [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-November/210631.… [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-November/210393.… Victor Kamensky (1): ARM: signal: fix armv7-m build issue in sigreturn_codes.S arch/arm/kernel/sigreturn_codes.S | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) -- 1.8.1.4

11 years, 5 months

[PATCH] ARM:clps711x:Enable ARM_PATCH_PHYS_VIRT by default

by panchaxari

ARM_PATCH_PHYS_VIRT is enabled by default for clps711x systems Introduction of this config as default will enable phy-to-virt and virt-to-phy translation function at boot and module loading time and enforce dynamic reallocation of memory. This config is mutually exclusive to XIP_KERNEL, which is used in systems with NOR flash devices Requesting platform maintainers to evaluate the changes on the board and comment on the changes, as I dont have the board for testing. Signed-off-by: panchaxari <panchaxari.prasannamurthy(a)linaro.org> Cc: Linus Walleij <linux.walleij(a)linaro.org> Cc: Alexander Shiyan <shc_work(a)mail.ru> Cc: Russell King <linux(a)arm.linux.org.uk> Cc: Olof Johansson <olof(a)lixom.net> Cc: linux-arm-kernel(a)lists.infradead.org --- arch/arm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1ad6fb6..dff1c81 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -372,6 +372,7 @@ config ARCH_CLPS711X bool "Cirrus Logic CLPS711x/EP721x/EP731x-based" select ARCH_REQUIRE_GPIOLIB select AUTO_ZRELADDR + select ARM_PATCH_PHYS_VIRT select CLKDEV_LOOKUP select CLKSRC_MMIO select COMMON_CLK -- 1.7.10.4

11 years, 5 months

[PATCH 0/2] ARM64: perf: add support for the perf registers and dwarf unwinding

by Jean Pihet

From: Jean Pihet <jean.pihet(a)newoldbits.com> This patch implements the functions required for the perf registers API, allowing the perf tool to interface kernel register dumps with libunwind in order to provide userspace backtracing. Only the general purpose user space registers are exported, i.e.: PERF_REG_ARM_X0, ... PERF_REG_ARM_X28, PERF_REG_ARM_FP, PERF_REG_ARM_LR, PERF_REG_ARM_SP, PERF_REG_ARM_PC and not the PERF_REG_ARM_V* registers. Dependencies: . if present, libunwind >= 1.1 is needed to prevent a segfault when parsing the dwarf info, . libunwind needs to be configured with --enable-debug-frame. Note: --enable-debug-frame is automatically selected on ARM, NOT on ARM64. The generated perf binary has been tested on ARMv8 (using the foundation model simulator) and x86_64, using the following commands: perf record -g [fp,dwarf] -- <binary> perf report --sort symbol --call-graph --stdio Jean Pihet (2): ARM64: perf: add support for perf registers API ARM64: perf: wire up perf_regs and unwind support arch/arm64/Kconfig | 2 + arch/arm64/include/uapi/asm/Kbuild | 1 + arch/arm64/include/uapi/asm/perf_regs.h | 40 ++++++++++++++ arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/perf_regs.c | 29 ++++++++++ tools/perf/arch/arm64/Makefile | 7 +++ tools/perf/arch/arm64/include/perf_regs.h | 88 +++++++++++++++++++++++++++++++ tools/perf/arch/arm64/util/dwarf-regs.c | 81 ++++++++++++++++++++++++++++ tools/perf/arch/arm64/util/unwind.c | 82 ++++++++++++++++++++++++++++ tools/perf/config/Makefile | 6 +++ 10 files changed, 337 insertions(+) create mode 100644 arch/arm64/include/uapi/asm/perf_regs.h create mode 100644 arch/arm64/kernel/perf_regs.c create mode 100644 tools/perf/arch/arm64/Makefile create mode 100644 tools/perf/arch/arm64/include/perf_regs.h create mode 100644 tools/perf/arch/arm64/util/dwarf-regs.c create mode 100644 tools/perf/arch/arm64/util/unwind.c -- 1.7.11.7

11 years, 5 months

mainline boot: 32 pass, 0 fail (v3.12-10088-g2d3c627)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: mainline Git describe: v3.12-10088-g2d3c627 Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 27.8 sec omap3-beagle-xm PASS: 0 min 51.1 sec am335x-bone PASS: 0 min 26.6 sec omap4-panda PASS: 1 min 4.4 sec omap4-panda-es PASS: 1 min 7.0 sec omap3-tobi,3730storm PASS: 0 min 24.1 sec omap3-tobi,3530overo PASS: 0 min 21.9 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 17.1 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 18.2 sec imx6dl-wandboard,wand-solo PASS: 0 min 18.4 sec imx6q-wandboard PASS: 0 min 16.4 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 21.9 sec armada-370-mirabox PASS: 0 min 20.1 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 29.8 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 28.9 sec tegra30-beaver PASS: 0 min 16.5 sec am335x-boneblack PASS: 0 min 34.6 sec omap3-beagle-xm PASS: 0 min 50.9 sec sun7i-a20-cubieboard2 PASS: 0 min 13.0 sec armada-370-mirabox PASS: 0 min 20.6 sec omap4-panda PASS: 1 min 1.8 sec omap4-panda-es PASS: 1 min 2.7 sec armada-xp-openblocks-ax3-4 PASS: 0 min 22.9 sec sun4i-a10-cubieboard PASS: 0 min 12.8 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.5 sec am335x-bone PASS: 0 min 33.4 sec imx6q-wandboard PASS: 0 min 15.8 sec omap3-tobi,3730storm PASS: 0 min 19.3 sec imx6dl-wandboard,wand-dual PASS: 0 min 18.4 sec omap3-tobi,3530overo PASS: 0 min 20.0 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 31.6 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.4 sec

11 years, 5 months

mainline boot: 31 pass, 1 fail (v3.12-10087-g1213959)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: mainline Git describe: v3.12-10087-g1213959 Failed boot tests (console logs at the end) =========================================== am335x-boneblack: FAIL: omap2plus_defconfig Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack FAIL: 0 min 41.3 sec omap3-beagle-xm PASS: 0 min 51.2 sec am335x-bone PASS: 0 min 26.6 sec omap4-panda PASS: 1 min 3.1 sec omap4-panda-es PASS: 1 min 4.9 sec omap3-tobi,3730storm PASS: 0 min 21.1 sec omap3-tobi,3530overo PASS: 0 min 21.9 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 20.3 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 18.3 sec imx6dl-wandboard,wand-solo PASS: 0 min 18.4 sec imx6q-wandboard PASS: 0 min 16.4 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 22.2 sec armada-370-mirabox PASS: 0 min 19.9 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 29.7 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 25.1 sec tegra30-beaver PASS: 0 min 17.4 sec am335x-boneblack PASS: 0 min 34.7 sec omap3-beagle-xm PASS: 0 min 49.6 sec sun7i-a20-cubieboard2 PASS: 0 min 12.9 sec armada-370-mirabox PASS: 0 min 20.6 sec omap4-panda PASS: 1 min 2.4 sec omap4-panda-es PASS: 1 min 3.0 sec armada-xp-openblocks-ax3-4 PASS: 0 min 22.8 sec sun4i-a10-cubieboard PASS: 0 min 12.8 sec imx6dl-wandboard,wand-solo PASS: 0 min 17.6 sec am335x-bone PASS: 0 min 33.4 sec imx6q-wandboard PASS: 0 min 15.8 sec omap3-tobi,3730storm PASS: 0 min 19.5 sec imx6dl-wandboard,wand-dual PASS: 0 min 17.9 sec omap3-tobi,3530overo PASS: 0 min 19.8 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 31.9 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.4 sec Console logs for failures ========================= omap2plus_defconfig ------------------- am335x-boneblack: FAIL: last 24 lines of boot log: -------------------------------------------------- U-Boot# dhcp dhcp link up on port 0, speed 1000, full duplex BOOTP broadcast 1 BOOTP broadcast 2 BOOTP broadcast 3 BOOTP broadcast 4 BOOTP broadcast 5 BOOTP broadcast 6 BOOTP broadcast 7 BOOTP broadcast 8 BOOTP broadcast 9 BOOTP broadcast 10 dhcp Retry count exceeded; starting again using musb-hdrc, OUT ep1out IN ep1in STATUS ep2in MAC c8:a0:30:b4:18:a4 HOST MAC de:ad:be:af:00:00 RNDIS ready ~$off # PYBOOT: Exception: u-boot: ERROR: DHCP retry count exceeded. # PYBOOT: Time: 41.31 seconds. # PYBOOT: Result: FAIL

11 years, 5 months

Some question about GIC v1 setting

by loody

hi all: I use arm cortex A9 smp with GIC v1 system. And my kernel is 3.8.13. I have some questions: 1. From GIc v1 spec, we can modify irq priority. (ICDIPRn, Interrupt Priority Rigisters) how could we do that in kernel? Did kernel provide any API of Irq to reach that goal? 2. From Gic V1 spec, we can assign 1 irq to multi-core. (ICDIPTRn, Interrupt Processor Targets Registers) Is there similar API in kernel to let 1 irq possibility to be handled by multi-cores? Appreciate your help in advance,

11 years, 5 months

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linaro-kernel November 2013