linaro-kernel

linaro-kernel@lists.linaro.org

10094 discussions

by Mark Brown

- A few trivial renames requested by Catalin - Pass cluster_id around by value outside of parse_cluster arm64: topology: Implement basic CPU topology support arm64: topology: Add support for topology DT bindings arm64: topology: Tell the scheduler about the relative arm64: topology: Provide relative power numbers for cores

11 years, 4 months

LSK merge linux-stable review

by Alex Shi

Mark & Catalin, Could you like to review the merge conflict patch, which at: git://git.linaro.org/kernel/linux-linaro-stable.git linux-linaro-lsk-test === commit 450cdfa9c5713551ab1438ab210679868b52a994 Merge: bf78886 8b4ed85 Author: Alex Shi <alex.shi(a)linaro.org> Date: Fri Jan 10 10:50:57 2014 +0800 Merge remote-tracking branch 'stable/linux-3.10.y' into linux-linaro-lsk Conflicts: arch/arm64/kernel/smp.c Signed-off-by: Alex Shi <alex.shi(a)linaro.org> diff --cc arch/arm64/kernel/smp.c index 5e9d274,9c93e12..87340fd --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@@ -150,17 -187,17 +150,10 @@@ asmlinkage void __cpuinit secondary_sta preempt_disable(); trace_hardirqs_off(); - /* - * Let the primary processor know we're out of the - * pen, then head off into the C entry point - */ - write_pen_release(INVALID_HWID); + if (cpu_ops[cpu]->cpu_postboot) + cpu_ops[cpu]->cpu_postboot(); -- /* - * Enable local interrupts. - */ - notify_cpu_starting(cpu); - local_irq_enable(); - local_fiq_enable(); - - * Synchronise with the boot thread. - */ - raw_spin_lock(&boot_lock); - raw_spin_unlock(&boot_lock); + smp_store_cpu_info(cpu); /* * OK, now it's safe to let the boot CPU continue. Wait for

11 years, 4 months

next boot: 30 pass, 2 fail (next-20140114)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: next Git describe: next-20140114 Failed boot tests (console logs at the end) =========================================== exynos5250-arndale: FAIL: exynos_defconfig omap4-panda-es: FAIL: multi_v7_defconfig Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 25.3 sec omap3-beagle-xm PASS: 1 min 0.9 sec am335x-bone PASS: 0 min 26.9 sec omap4-panda PASS: 1 min 7.3 sec omap4-panda-es PASS: 1 min 4.7 sec omap3-tobi,3730storm PASS: 0 min 24.1 sec omap3-tobi,3530overo PASS: 0 min 22.2 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 17.0 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 17.1 sec imx6dl-wandboard,wand-solo PASS: 0 min 17.1 sec imx6q-wandboard PASS: 0 min 15.6 sec sunxi_defconfig --------------- sun7i-a20-cubieboard2 PASS: 0 min 12.3 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 22.0 sec armada-370-mirabox PASS: 0 min 20.4 sec exynos_defconfig ---------------- exynos5250-arndale FAIL: 1 min 25.0 sec multi_v7_defconfig ------------------ ste-snowball PASS: 1 min 20.6 sec tegra30-beaver PASS: 0 min 19.4 sec am335x-boneblack PASS: 0 min 22.8 sec omap3-beagle-xm PASS: 0 min 51.1 sec sun7i-a20-cubieboard2 PASS: 0 min 13.7 sec armada-370-mirabox PASS: 0 min 21.5 sec omap4-panda PASS: 0 min 52.1 sec omap4-panda-es FAIL: 1 min 48.5 sec armada-xp-openblocks-ax3-4 PASS: 0 min 24.1 sec imx6dl-wandboard,wand-solo PASS: 0 min 17.4 sec am335x-bone PASS: 0 min 25.4 sec imx6q-wandboard PASS: 0 min 16.6 sec omap3-tobi,3730storm PASS: 0 min 23.3 sec imx6dl-wandboard,wand-dual PASS: 0 min 17.5 sec omap3-tobi,3530overo PASS: 0 min 20.7 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 39.1 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.5 sec Console logs for failures ========================= exynos_defconfig ---------------- exynos5250-arndale: FAIL: last 24 lines of boot log: ---------------------------------------------------- [ 1.875157] VDD_33ON_2.8V: disabling [ 1.886133] exynos-dp 145b0000.dp-controller: unable to find phy [ 1.892032] platform 145b0000.dp-controller: Driver exynos-dp requests probe deferral [ 1.892345] mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req 52000000Hz, actual 50000000HZ div = 1) [ 1.892434] mmc0: new high speed DDR MMC card at address 0001 [ 1.915655] isa bounce pool size: 16 pages [ 1.919502] mmcblk0: mmc0:0001 M4G1FA 3.72 GiB [ 1.924101] mmcblk0boot0: mmc0:0001 M4G1FA partition 1 1.00 MiB [ 1.930000] mmcblk0boot1: mmc0:0001 M4G1FA partition 2 1.00 MiB [ 1.935898] mmcblk0rpmb: mmc0:0001 M4G1FA partition 3 128 KiB [ 1.942621] mmcblk0: p1 p2 p3 p4 [ 1.947108] mmcblk0boot1: unknown partition table [ 1.951369] mmcblk0boot0: unknown partition table [ 2.116089] exynos-dp 145b0000.dp-controller: unable to find phy [ 2.120652] platform 145b0000.dp-controller: Driver exynos-dp requests probe deferral [ 2.129393] input: gpio_keys.4 as /devices/gpio_keys.4/input/input0 [ 2.135084] exynos-dp 145b0000.dp-controller: unable to find phy [ 2.140681] s3c-rtc 101e0000.rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800) [ 2.140776] platform 145b0000.dp-controller: Driver exynos-dp requests probe deferral [ 2.158019] Waiting for root device /dev/mmcblk1p3... ~$off # PYBOOT: Exception: kernel: ERROR: failed to boot: <class 'pexpect.TIMEOUT'> # PYBOOT: Time: 85.04 seconds. # PYBOOT: Result: FAIL multi_v7_defconfig ------------------ omap4-panda-es: FAIL: last 24 lines of boot log: ------------------------------------------------ [ 1.651580] OMAP4 PM: u-boot >= v2012.07 is required for full PM support [ 1.658691] Registering SWP/SWPB emulation handler [ 1.664672] vwl1271: 1800 mV [ 1.671874] Skipping twl internal clock init and using bootloader value (unknown osc rate) [ 1.681091] twl 0-0048: PIH (irq 39) nested IRQs [ 1.687316] twl_rtc rtc.11: Enabling TWL-RTC [ 1.694061] twl_rtc rtc.11: rtc core: registered rtc.11 as rtc0 [ 1.701049] VAUX1_6030: 1000 <--> 3000 mV at 2800 mV [ 1.707031] VAUX2_6030: 1200 <--> 2800 mV at 1800 mV [ 1.713043] VAUX3_6030: 1000 <--> 3000 mV at 1200 mV [ 1.719024] VMMC: 1200 <--> 3000 mV at 3000 mV [ 1.724517] VPP: 1800 <--> 2500 mV at 1900 mV [ 1.729858] VUSIM: 1200 <--> 2900 mV at 1800 mV [ 1.735260] VDAC: 1800 mV [ 1.735260] VANA: 2100 mV [ 1.741943] VCXIO: 1800 mV [ 1.741943] VUSB: 3300 mV [ 1.748687] V1V8: 1800 mV [ 1.752197] V2V1: 2100 mV [ 1.759124] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz ~$off # PYBOOT: Exception: kernel: ERROR: failed to boot: <class 'pexpect.TIMEOUT'> # PYBOOT: Time: 108.55 seconds. # PYBOOT: Result: FAIL

11 years, 4 months

queue boot: 13 pass, 2 fail (v3.10.26-62-g420eb9a)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: queue Git describe: v3.10.26-62-g420eb9a Failed boot tests (console logs at the end) =========================================== armada-xp-openblocks-ax3-4: FAIL: multi_v7_defconfig armada-370-mirabox: FAIL: multi_v7_defconfig Full Report =========== omap2plus_defconfig ------------------- omap3-beagle-xm PASS: 0 min 59.5 sec am335x-bone PASS: 0 min 26.5 sec omap4-panda PASS: 1 min 5.7 sec omap4-panda-es PASS: 1 min 3.5 sec omap3-tobi,3730storm PASS: 0 min 35.8 sec omap3-tobi,3530overo PASS: 0 min 33.9 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 17.5 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 16.6 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.4 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 21.5 sec armada-370-mirabox PASS: 0 min 19.6 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 33.6 sec multi_v7_defconfig ------------------ armada-xp-openblocks-ax3-4 FAIL: 0 min 20.1 sec armada-370-mirabox FAIL: 0 min 17.9 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 16.4 sec Console logs for failures ========================= multi_v7_defconfig ------------------ armada-xp-openblocks-ax3-4: FAIL: last 24 lines of boot log: ------------------------------------------------------------ [<c0013bec>] (unwind_backtrace+0x0/0xf4) from [<c00114b0>] (show_stack+0x10/0x14) [<c00114b0>] (show_stack+0x10/0x14) from [<c0275d20>] (panic+0xa0/0x1e8) [<c0275d20>] (panic+0xa0/0x1e8) from [<c0329110>] (mount_block_root+0x294/0x298) [<c0329110>] (mount_block_root+0x294/0x298) from [<c03292c4>] (prepare_namespace+0x14c/0x184) [<c03292c4>] (prepare_namespace+0x14c/0x184) from [<c0328d60>] (kernel_init_freeable+0x1c8/0x1d8) [<c0328d60>] (kernel_init_freeable+0x1c8/0x1d8) from [<c0271a90>] (kernel_init+0x8/0x158) [<c0271a90>] (kernel_init+0x8/0x158) from [<c000df18>] (ret_from_fork+0x14/0x3c) CPU0: stopping CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.10.26-00062-g420eb9a #1 [<c0013bec>] (unwind_backtrace+0x0/0xf4) from [<c00114b0>] (show_stack+0x10/0x14) [<c00114b0>] (show_stack+0x10/0x14) from [<c001236c>] (handle_IPI+0x108/0x130) [<c001236c>] (handle_IPI+0x108/0x130) from [<c000851c>] (armada_370_xp_handle_irq+0x90/0xa8) [<c000851c>] (armada_370_xp_handle_irq+0x90/0xa8) from [<c000dac0>] (__irq_svc+0x40/0x50) Exception stack(0xc0359f70 to 0xc0359fb8) 9f60: c1d5b6d8 00000000 000000be 000000be 9f80: c03604a8 c0358000 c036045c c0383b6c c027dec0 c0358000 c0383b6c c0358000 9fa0: 0000001f c0359fb8 c000f070 c004f970 60000113 ffffffff [<c000dac0>] (__irq_svc+0x40/0x50) from [<c004f970>] (cpu_startup_entry+0xfc/0x140) [<c004f970>] (cpu_startup_entry+0xfc/0x140) from [<c0328a3c>] (start_kernel+0x2c4/0x2d0) [<c0328a3c>] (start_kernel+0x2c4/0x2d0) from [<00008074>] (0x8074) ~$off # PYBOOT: Exception: kernel: ERROR: failed to boot: Kernel panic # PYBOOT: Time: 20.05 seconds. # PYBOOT: Result: FAIL armada-370-mirabox: FAIL: last 24 lines of boot log: ---------------------------------------------------- mousedev: PS/2 mouse device common for all mice sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman sdhci-pltfm: SDHCI platform and OF driver helper usbcore: registered new interface driver usbhid usbhid: USB HID core driver VFP support v0.3: implementor 56 architecture 2 part 20 variant 9 rev 6 Registering SWP/SWPB emulation handler /home/build/work/batch/drivers/rtc/hctosys.c: unable to open rtc device (rtc0) List of all partitions: No filesystem could mount root, tried: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.26-00062-g420eb9a #1 [<c0013bec>] (unwind_backtrace+0x0/0xf4) from [<c00114b0>] (show_stack+0x10/0x14) [<c00114b0>] (show_stack+0x10/0x14) from [<c0275d20>] (panic+0xa0/0x1e8) [<c0275d20>] (panic+0xa0/0x1e8) from [<c0329110>] (mount_block_root+0x294/0x298) [<c0329110>] (mount_block_root+0x294/0x298) from [<c03292c4>] (prepare_namespace+0x14c/0x184) [<c03292c4>] (prepare_namespace+0x14c/0x184) from [<c0328d60>] (kernel_init_freeable+0x1c8/0x1d8) [<c0328d60>] (kernel_init_freeable+0x1c8/0x1d8) from [<c0271a90>] (kernel_init+0x8/0x158) [<c0271a90>] (kernel_init+0x8/0x158) from [<c000df18>] (ret_from_fork+0x14/0x3c) ~$off # PYBOOT: Exception: kernel: ERROR: failed to boot: Kernel panic # PYBOOT: Time: 17.88 seconds. # PYBOOT: Result: FAIL

11 years, 4 months

queue boot: 31 pass, 0 fail (v3.12.7-77-gd98d59b)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: queue Git describe: v3.12.7-77-gd98d59b Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 32.3 sec omap3-beagle-xm PASS: 0 min 60.0 sec am335x-bone PASS: 0 min 26.1 sec omap4-panda PASS: 1 min 5.8 sec omap4-panda-es PASS: 1 min 4.5 sec omap3-tobi,3730storm PASS: 0 min 23.8 sec omap3-tobi,3530overo PASS: 0 min 21.4 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 16.9 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 16.3 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.1 sec imx6q-wandboard PASS: 0 min 14.7 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 21.9 sec armada-370-mirabox PASS: 0 min 20.0 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 28.8 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 25.6 sec tegra30-beaver PASS: 0 min 16.9 sec am335x-boneblack PASS: 0 min 34.4 sec omap3-beagle-xm PASS: 0 min 54.3 sec sun7i-a20-cubieboard2 PASS: 0 min 13.0 sec armada-370-mirabox PASS: 0 min 20.6 sec omap4-panda PASS: 1 min 3.6 sec omap4-panda-es PASS: 1 min 5.3 sec armada-xp-openblocks-ax3-4 PASS: 0 min 22.7 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.4 sec am335x-bone PASS: 0 min 33.2 sec imx6q-wandboard PASS: 0 min 15.8 sec omap3-tobi,3730storm PASS: 0 min 21.9 sec imx6dl-wandboard,wand-dual PASS: 0 min 16.6 sec omap3-tobi,3530overo PASS: 0 min 19.8 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 34.3 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.4 sec

11 years, 4 months

mainline boot: 28 pass, 4 fail (v3.13-rc7-127-g518d00b)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: mainline Git describe: v3.13-rc7-127-g518d00b Failed boot tests (console logs at the end) =========================================== tegra30-beaver: FAIL: tegra_defconfig imx6dl-wandboard,wand-dual: FAIL: imx_v6_v7_defconfig tegra30-beaver: FAIL: multi_v7_defconfig imx6dl-wandboard,wand-dual: FAIL: multi_v7_defconfig Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 27.9 sec omap3-beagle-xm PASS: 0 min 57.2 sec am335x-bone PASS: 0 min 26.6 sec omap4-panda PASS: 1 min 6.1 sec omap4-panda-es PASS: 1 min 5.6 sec omap3-tobi,3730storm PASS: 0 min 23.8 sec omap3-tobi,3530overo PASS: 0 min 21.9 sec tegra_defconfig --------------- tegra30-beaver FAIL: 0 min 31.4 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual FAIL: 0 min 31.4 sec imx6dl-wandboard,wand-solo PASS: 0 min 19.3 sec imx6q-wandboard PASS: 0 min 17.6 sec sunxi_defconfig --------------- sun7i-a20-cubieboard2 PASS: 0 min 12.2 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 22.0 sec armada-370-mirabox PASS: 0 min 20.1 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 29.1 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 29.7 sec tegra30-beaver FAIL: 0 min 31.4 sec am335x-boneblack PASS: 0 min 24.8 sec omap3-beagle-xm PASS: 0 min 58.2 sec sun7i-a20-cubieboard2 PASS: 0 min 13.1 sec armada-370-mirabox PASS: 0 min 20.7 sec omap4-panda PASS: 1 min 1.4 sec omap4-panda-es PASS: 1 min 3.7 sec armada-xp-openblocks-ax3-4 PASS: 0 min 23.1 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.7 sec am335x-bone PASS: 0 min 23.5 sec imx6q-wandboard PASS: 0 min 16.8 sec omap3-tobi,3730storm PASS: 0 min 22.5 sec imx6dl-wandboard,wand-dual FAIL: 0 min 31.4 sec omap3-tobi,3530overo PASS: 0 min 20.2 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 31.1 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.5 sec Console logs for failures ========================= tegra_defconfig --------------- tegra30-beaver: FAIL: last 24 lines of boot log: ------------------------------------------------ Connected to beaver console [channel connected] (~$quit to exit) (user:khilman) is already connected ~$hardreset Command(beaver console)> hardreset (user:khilman) Reboot beaver Reboot: beaver ; ip9258 1 2 : off, sleep, on ~$off # PYBOOT: Exception: ERROR: Could not break into autoboot. # PYBOOT: Time: 31.39 seconds. # PYBOOT: Result: FAIL imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual: FAIL: last 24 lines of boot log: ------------------------------------------------------------ Connected to wand-dual console [channel connected] (~$quit to exit) (user:khilman) is already connected ~$hardreset Command(wand-dual console)> hardreset (user:khilman) Reboot wand-dual Reboot: wand-dual ; phidget 2 1 : off, sleep, on ~$off # PYBOOT: Exception: ERROR: Could not break into autoboot. # PYBOOT: Time: 31.39 seconds. # PYBOOT: Result: FAIL multi_v7_defconfig ------------------ tegra30-beaver: FAIL: last 24 lines of boot log: ------------------------------------------------ Connected to beaver console [channel connected] (~$quit to exit) (user:khilman) is already connected ~$hardreset Command(beaver console)> hardreset (user:khilman) Reboot beaver Reboot: beaver ; ip9258 1 2 : off, sleep, on ~$off # PYBOOT: Exception: ERROR: Could not break into autoboot. # PYBOOT: Time: 31.39 seconds. # PYBOOT: Result: FAIL imx6dl-wandboard,wand-dual: FAIL: last 24 lines of boot log: ------------------------------------------------------------ Connected to wand-dual console [channel connected] (~$quit to exit) (user:khilman) is already connected ~$hardreset Command(wand-dual console)> hardreset (user:khilman) Reboot wand-dual Reboot: wand-dual ; phidget 2 1 : off, sleep, on ~$off # PYBOOT: Exception: ERROR: Could not break into autoboot. # PYBOOT: Time: 31.39 seconds. # PYBOOT: Result: FAIL

11 years, 4 months

[PATCH] ARM: OMAP4: sleep/smp: switch CPU to BE if compiled for BE

by Taras Kondratiuk

From: Victor Kamensky <victor.kamensky(a)linaro.org> If kernel operates in BE mode on device that has LE bootloader/ROM code, we need to switch CPU to operate in BE mode before it will start to access BE data. Generic secondary_startup function that is called from OMAP specific secondary startup code will do the switch, but we need to do it earlier because OMAP's secondary_startup code works with BE data. Signed-off-by: Victor Kamensky <victor.kamensky(a)linaro.org> Signed-off-by: Taras Kondratiuk <taras.kondratiuk(a)linaro.org> --- This is a part of RFC series [1]. Based on v3.13-rc8. [1] http://www.spinics.net/lists/linux-omap/msg99927.html arch/arm/mach-omap2/omap-headsmp.S | 13 +++++++++++++ arch/arm/mach-omap2/sleep44xx.S | 6 ++++++ 2 files changed, 19 insertions(+) diff --git a/arch/arm/mach-omap2/omap-headsmp.S b/arch/arm/mach-omap2/omap-headsmp.S index 75e9295..75c98d4 100644 --- a/arch/arm/mach-omap2/omap-headsmp.S +++ b/arch/arm/mach-omap2/omap-headsmp.S @@ -17,6 +17,7 @@ #include <linux/linkage.h> #include <linux/init.h> +#include <asm/assembler.h> #include "omap44xx.h" @@ -58,6 +59,12 @@ hold: ldr r12,=0x103 bne hold /* + * ROM code operates in little endian mode, when we get control we + * need to switch it back to big endian mode. + */ +ARM_BE8(setend be) + + /* * we've been released from the wait loop,secondary_stack * should now contain the SVC stack for this core */ @@ -75,6 +82,12 @@ hold_2: ldr r12,=0x103 bne hold_2 /* + * ROM code operates in little endian mode, when we get control we + * need to switch it back to big endian mode. + */ +ARM_BE8(setend be) + + /* * GIC distributor control register has changed between * CortexA9 r1pX and r2pX. The Control Register secure * banked version is now composed of 2 bits: diff --git a/arch/arm/mach-omap2/sleep44xx.S b/arch/arm/mach-omap2/sleep44xx.S index 9086ce0..e556c8b 100644 --- a/arch/arm/mach-omap2/sleep44xx.S +++ b/arch/arm/mach-omap2/sleep44xx.S @@ -249,6 +249,12 @@ ENDPROC(omap4_finish_suspend) */ ENTRY(omap4_cpu_resume) /* + * ROM code operates in little endian mode, when we get control we + * need to switch it back to big endian mode. + */ +ARM_BE8(setend be) + + /* * Configure ACTRL and enable NS SMP bit access on CPU1 on HS device. * OMAP44XX EMU/HS devices - CPU0 SMP bit access is enabled in PPA * init and for CPU1, a secure PPA API provided. CPU0 must be ON -- 1.7.9.5

11 years, 4 months

[PATCH V2 0/8] sched: cleanup trigger_load_balance

by Daniel Lezcano

This patchset does a cleanup on the parameters passed from the function 'trigger_load_balance' to the underneath functions. The cpu is passed as parameter to the different functions as well as the struct rq but this one contains already the cpu information. Moreover, in the call stack for these functions, we have the struct rq retrieved from the cpu, and then the cpu retrieve from the struct rq, etc ... The patchset unifies all these functions to have a struct rq parameter and removes the pointless parameters. -static inline int find_new_ilb(int call_cpu) +static inline int find_new_ilb(void) -static void nohz_balancer_kick(int cpu) +static void nohz_balancer_kick(void) -static void rebalance_domains(int cpu, enum cpu_idle_type idle) +static void rebalance_domains(struct rq *rq, enum cpu_idle_type idle) -static void nohz_idle_balance(int this_cpu, enum cpu_idle_type idle) +static void nohz_idle_balance(struct rq *this_rq, enum cpu_idle_type idle) -static inline int nohz_kick_needed(struct rq *rq, int cpu) +static inline int nohz_kick_needed(struct rq *rq) -static inline int on_null_domain(int cpu) +static inline int on_null_domain(struct rq *rq) Changelog: V2: - added missing patch 1/8 - added acked-by from Preeti U Murthy for patch 4 and 5 Daniel Lezcano (8): sched: reduce trigger_load_balance parameters sched: reduce nohz_kick_needed parameters sched: pass struct rq to on_null_domain function sched: remove unused parameter for find_new_ilb sched: remove unused parameter in nohz_balancer_kick function sched: pass struct rq to rebalance_domains function sched: pass struct rq to nohz_idle_balance function sched: factor out on_null_domain check in trigger_load_balance function kernel/sched/core.c | 2 +- kernel/sched/fair.c | 45 +++++++++++++++++++++++---------------------- kernel/sched/sched.h | 2 +- 3 files changed, 25 insertions(+), 24 deletions(-) -- 1.7.9.5

11 years, 4 months

Re: [PATCH] serial: samsung: Remove hard-coded major/minor numbers

by Tushar Behera

On 28 December 2013 00:14, Greg KH <gregkh(a)linuxfoundation.org> wrote: > On Fri, Dec 27, 2013 at 03:47:31PM +0530, Tushar Behera wrote: >> On 27 December 2013 12:08, Greg KH <gregkh(a)linuxfoundation.org> wrote: >> > On Fri, Dec 27, 2013 at 12:00:20PM +0530, Tushar Behera wrote: >> >> On 27 December 2013 10:48, Greg KH <gregkh(a)linuxfoundation.org> wrote: >> >> > On Fri, Dec 27, 2013 at 10:37:28AM +0530, Tushar Behera wrote: >> >> [ ... ] >> >> >> >> @@ -951,8 +949,6 @@ static struct uart_driver s3c24xx_uart_drv = { >> >> >> .nr = CONFIG_SERIAL_SAMSUNG_UARTS, >> >> >> .cons = S3C24XX_SERIAL_CONSOLE, >> >> >> .dev_name = S3C24XX_SERIAL_NAME, >> >> >> - .major = S3C24XX_SERIAL_MAJOR, >> >> >> - .minor = S3C24XX_SERIAL_MINOR, >> >> > >> >> > Doesn't this break existing systems and configurations that are >> >> > expecting 204:64 as the location of this serial port? >> >> > >> >> >> >> I tested this on Exynos4210-Origen, Exynos5250-Arndale board, it works >> >> fine there. I haven't tested on any older boards. >> > >> > How did it work? You are relying on some userspace tools to do this >> > properly, right? What about systems without those specific tools? >> > >> >> Enabling CONFIG_DEVTMPFS, all the /dev/ttySAC<n> nodes are generated >> and the appropriate console is specified through command line >> argument. > > But what about systems that rely on a hard-coded /dev? > > Look, I'm all for making everyone use devtmpfs, but just changing > major:minor numbers for drivers isn't ok, as you are changing the > userspace ABI for the device. > > Please realize what you are asking for here, I really don't think you > grasp it given that you didn't ask any of the maintainers of this driver > about the change in the first place. > > Please get approval for this patch from others within Linaro before > sending it out again. Linaro has a process in place for this type of > thing, please use it, otherwise it makes people like me really grumpy > and upset and causes me to yell at people at their conferences. > > greg k-h Asking for opinion about this ... Without this patch, I can't get serial console to come up on Exynos platforms when amba-pl011 driver enabled. But Greg is particularly not at all happy with this patch. Any comments with respect to fixing this issue would be highly appreciated. Attaching the complete patch for reference. -- Tushar Behera

11 years, 4 months

[PATCH v2 0/5] ARM: kprobes: big endian support

by Taras Kondratiuk

Reworked initial Ben's series for big endian support [1]. Dropped patches that are not directly related to kprobes. Current set of patches is enough to have functional BE kprobes. One ARM kprobe test fails on Cortex-A15 boards (TC2 and Keystone2 EVM), while it passes on Pandaboard. The issue is not related to this series and already present in v3.13-rc7. I'll try to look into it later. v1..v2: Fixed coprocessor instruction building for ARM tests in the patch "ARM: kprobes-test: use <asm/opcodes.h> for ARM instruction building" Based on v3.13-rc7. [1] http://www.spinics.net/lists/arm-kernel/msg285210.html Ben Dooks (4): ARM: kprobes: fix instruction fetch order with <asm/opcodes.h> ARM: kprobes-test: use <asm/opcodes.h> for instruction accesses ARM: kprobes-test: use <asm/opcodes.h> for ARM instruction building ARM: kprobes-test: use <asm/opcodes.h> for Thumb instruction building Taras Kondratiuk (1): ARM: kprobes-test: Workaround GAS .align bug arch/arm/kernel/kprobes-common.c | 19 +- arch/arm/kernel/kprobes-test-arm.c | 603 +++++++++++++++++----------------- arch/arm/kernel/kprobes-test-thumb.c | 447 ++++++++++++------------- arch/arm/kernel/kprobes-test.c | 13 +- arch/arm/kernel/kprobes-test.h | 2 +- arch/arm/kernel/kprobes-thumb.c | 20 +- arch/arm/kernel/kprobes.c | 9 +- 7 files changed, 562 insertions(+), 551 deletions(-) -- 1.7.9.5

11 years, 4 months

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