linaro-kernel July 2016

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113 discussions

[PATCH 0/2] cpufreq: Upstream Android's Interactive governor

by Viresh Kumar

Hi Rafael et. al., We had some discussions [1] last week on the PM mailing about upstreaming the cpufreq governor most widely used on Andoid Mobile phones and tablets: Interactive governor. People (including Rafael) mostly agreed that we better get it upstreamed and here is an attempt to upstream most of it (idle notifiers aren't included in this series). I picked the latest code spread over 70-80 patches from [2]. The unmodified code, based over mainline is pushed [4] for reference. I have updated the governor to align it with the current practices followed with mainline governors, like using utilization hooks from the scheduler and handling kobject (for governor's sysfs directory) in a race free manner. And of course this included general cleanup of the governor as well. This version is pushed here [3] for testing. The Android version of interactive governor also uses idle EXIT notifiers, but that code isn't part of this series and will be sent separately later. For people interested in looking at that, those are 3 minor patches on top of this series and are pushed here [5]. I haven't changed the core logic of the governor intentionally, as that rather requires more in-depth knowledge of the use case for which the optimizations have been done. So, we should do any such thing later on with new patches, so that people can find things easily. I also haven't tried to change the userspace interface as that may have broken the userspace that already exists and uses this governor. This has been lightly tested on my Exynos board (dual ARM A15), where the governor gets inserted/removed multiple times, the sysfs files are all functional. The frequency gets changed with load, etc. This series is based of pm/bleeding-edge branch + few patches from Rafael [6] & [7] and few minor cleanups from me [8]. -- viresh [1] http://marc.info/?l=linux-pm&m=146301864519072 [2] https://android.googlesource.com/kernel/common remotes/android/android-4.4 [3] git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git cpufreq/interactive [4] git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git cpufreq/interactive-orig [5] git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git cpufreq/intearctive-idle-notifier [6] http://marc.info/?l=linux-kernel&m=146318036229244 [7] http://marc.info/?l=linux-kernel&m=146360498820804 [8] http://marc.info/?l=linux-pm&m=146357434108299 Viresh Kumar (2): cpufreq: Move gov_attr_* macros to cpufreq.h cpufreq: Add android's 'interactive' governor Documentation/cpu-freq/governors.txt | 86 ++ drivers/cpufreq/Kconfig | 27 + drivers/cpufreq/Makefile | 1 + drivers/cpufreq/cpufreq_governor.h | 8 - drivers/cpufreq/cpufreq_interactive.c | 1371 ++++++++++++++++++++++++++++ include/linux/cpufreq.h | 12 + include/trace/events/cpufreq_interactive.h | 112 +++ kernel/sched/cpufreq_schedutil.c | 8 +- 8 files changed, 1613 insertions(+), 12 deletions(-) create mode 100644 drivers/cpufreq/cpufreq_interactive.c create mode 100644 include/trace/events/cpufreq_interactive.h -- 2.7.1.410.g6faf27b

7 years, 10 months

master build: 0 failures 1 warnings (v4.7-rc5-284-g6e5c4f1)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.7-rc5-284-g6e5c4f1 Commit: 6e5c4f13a5 Merge tag 'staging-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Build Time: 79 min 46 sec Passed: 9 / 9 (100.00 %) Failed: 0 / 9 ( 0.00 %) Errors: 0 Warnings: 1 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : arm64-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 1 1 ../fs/reiserfs/ibalance.c:1156:2: warning: 'new_insert_key' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../fs/reiserfs/ibalance.c:1156:2: warning: 'new_insert_key' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years, 10 months

next-20160701 build: 2 failures 5 warnings (next-20160701)

by Build bot for Mark Brown

Tree/Branch: next-20160701 Git describe: next-20160701 Commit: d936b5e461 Add linux-next specific files for 20160701 Build Time: 75 min 3 sec Passed: 7 / 9 ( 77.78 %) Failed: 2 / 9 ( 22.22 %) Errors: 2 Warnings: 5 Section Mismatches: 0 Failed defconfigs: arm64-allmodconfig arm-allmodconfig Errors: arm-allmodconfig ../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1300:2: error: implicit declaration of function 'mtk_handle_irq' [-Werror=implicit-function-declaration] ../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1300:25: error: subscripted value is neither array nor pointer nor vector ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 2 warnings 0 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm-multi_v7_defconfig 4 warnings 0 mismatches : arm-allmodconfig 1 warnings 0 mismatches : arm-multi_v5_defconfig 1 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Errors summary: 2 1 ../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1300:2: error: implicit declaration of function 'mtk_handle_irq' [-Werror=implicit-function-declaration] 1 ../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1300:25: error: subscripted value is neither array nor pointer nor vector Warnings Summary: 5 5 ../drivers/usb/host/xhci-ring.c:753:4: warning: 'ep_ring' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../include/linux/kernel.h:743:17: warning: comparison of distinct pointer types lacks a cast 1 ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined 1 ../arch/arm/mach-s3c64xx/common.h:28:2: warning: its scope is only this definition or declaration, which is probably not what you want 1 ../arch/arm/mach-s3c64xx/common.h:28:2: warning: 'struct device_node' declared inside parameter list =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 0 errors, 2 warnings, 0 section mismatches Warnings: ../include/linux/kernel.h:743:17: warning: comparison of distinct pointer types lacks a cast ../drivers/usb/host/xhci-ring.c:753:4: warning: 'ep_ring' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/usb/host/xhci-ring.c:753:4: warning: 'ep_ring' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 2 errors, 4 warnings, 0 section mismatches Errors: ../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1300:2: error: implicit declaration of function 'mtk_handle_irq' [-Werror=implicit-function-declaration] ../drivers/net/ethernet/mediatek/mtk_eth_soc.c:1300:25: error: subscripted value is neither array nor pointer nor vector Warnings: ../arch/arm/mach-s3c64xx/common.h:28:2: warning: 'struct device_node' declared inside parameter list ../arch/arm/mach-s3c64xx/common.h:28:2: warning: its scope is only this definition or declaration, which is probably not what you want ../drivers/tty/serial/8250/8250_fintek.c:34:0: warning: "IRQ_MODE" redefined ../drivers/usb/host/xhci-ring.c:753:4: warning: 'ep_ring' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm-multi_v5_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/usb/host/xhci-ring.c:753:4: warning: 'ep_ring' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/usb/host/xhci-ring.c:753:4: warning: 'ep_ring' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig arm64-allnoconfig arm-allnoconfig x86_64-defconfig

7 years, 10 months

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linaro-kernel July 2016