linaro-kernel September 2013

linaro-kernel@lists.linaro.org

106 participants
319 discussions

by Christoffer Dall

This small series adds support for Transparent Huge Pages and hugetlbfs pages for KVM on the arm and arm64 architectures. Measurements have shown that using huge pages in for stage-2 mappings provides up to more than 15% performance increase for some workloads. The patch series applies to kvm/next, but depends on the patch sent earlier: "ARM: KVM: Fix unaligned unmap_range leak" Christoffer Dall (3): KVM: Move gfn_to_index to x86 specific code KVM: ARM: Get rid of KVM_HPAGE_XXX defines KVM: ARM: Transparent huge pages and hugetlbfs support arch/arm/include/asm/kvm_host.h | 5 - arch/arm/include/asm/kvm_mmu.h | 17 +++- arch/arm/kvm/mmu.c | 200 ++++++++++++++++++++++++++++++++------ arch/arm64/include/asm/kvm_mmu.h | 12 ++- arch/x86/include/asm/kvm_host.h | 7 ++ include/linux/kvm_host.h | 7 -- 6 files changed, 201 insertions(+), 47 deletions(-) -- 1.7.10.4

10 years, 7 months

[PATCH 000/228] CPUFreq: cleanup stuff for 3.13

by Viresh Kumar

This is my biggest patchset ever and it might not happen again in my entire career. I hope I haven't screwed up here :) CPUFreq cleanup patches are ready to hit linux-next (I hope it doesn't turn out into horror stories, where it broke all possible architectures where Linux runs :)) Most of these are build tested only, Also done by: Fengguang Wu's build bot. All of these were sent separately in smaller patchsets earlier and now merged together as a single set. Some parts are reviewed by platform maintainers and their Acks are included in the patches (Sorry if I missed any).. These are rebased over today's pm/linux-next: f74a274 Merge branch 'pm-cpufreq-next' into linux-next with following patches over it, which I expect to get into Rafael's tree before these: cpufreq: use correct values of cpus in __cpufreq_remove_dev_finish() cpufreq: distinguish drivers that do asynchronous notifications cpufreq: make sure frequency transitions are serialized cpufreq: Create cpufreq_transition_complete() cpufreq: powernow-k8: mark freq transition complete on error cases There are few new patches here which haven't been sent yet and only came out after discussions with Maintainers about their platforms: cpufreq: loongson2: use cpufreq_generic_init() routine cpufreq: davinci: use cpufreq_generic_init() routine cpufreq: cris: use cpufreq_generic_init() routine cpufreq: omap: use cpufreq_generic_init() routine As suggested by Rafael earlier, he might not apply all at once and will give people some chance to test sets one by one.. So, first set now, next one after few days. So, I am marking different sets with patch numbers to make it easier for Rafael. - Patch 1->8: Generic cleanup of cpufreq core (First batch) - Patch 9->54: Mostly about cpufreq_table_validate_and_show() helper (First batch) - Patch 55->89: New generic routines for cpufreq drivers (First/Second batch) - Patch 90->126: About calling cpufreq_driver->get() from core (First/Second batch) - Patch 127->146: Generic init() routine (First/Second batch) - Patch 147->180: Light weight ->target() routine (Third batch) - Patch 181->211: Call notifiers from core instead of target() (Third/Fourth batch) - Patch 212->228: Generic get() (Fifth batch) As suggested by Amit here, Linaro may try to test linux-next with these patches on Linaro's board farm (Mostly ARM and X86).. https://lkml.org/lkml/2013/9/11/346 -- viresh Hans-Christian Egtvedt (1): cpufreq: at32ap: add frequency table Viresh Kumar (227): cpufreq: Remove extra blank line cpufreq: don't break string in print statements cpufreq: remove __cpufreq_remove_dev() cpufreq: Optimize cpufreq_frequency_table_verify() cpufreq: rename __cpufreq_set_policy() as cpufreq_set_policy() cpufreq: rewrite cpufreq_driver->flags using shift operator cpufreq: use cpufreq_driver->flags to mark CPUFREQ_HAVE_GOVERNOR_PER_POLICY cpufreq: add new routine cpufreq_verify_within_cpu_limits() cpufreq: Add new helper cpufreq_table_validate_and_show() cpufreq: pxa: call cpufreq_frequency_table_get_attr() cpufreq: s3cx4xx: call cpufreq_frequency_table_get_attr() cpufreq: sparc: call cpufreq_frequency_table_get_attr() cpufreq: acpi-cpufreq: use cpufreq_table_validate_and_show() cpufreq: arm_big_little: use cpufreq_table_validate_and_show() cpufreq: blackfin: use cpufreq_table_validate_and_show() cpufreq: cpufreq-cpu0: use cpufreq_table_validate_and_show() cpufreq: cris: use cpufreq_table_validate_and_show() cpufreq: davinci: use cpufreq_table_validate_and_show() cpufreq: dbx500: use cpufreq_table_validate_and_show() cpufreq: e_powersaver: use cpufreq_table_validate_and_show() cpufreq: elanfreq: use cpufreq_table_validate_and_show() cpufreq: exynos: use cpufreq_table_validate_and_show() cpufreq: ia64-acpi: use cpufreq_table_validate_and_show() cpufreq: imx6q: use cpufreq_table_validate_and_show() cpufreq: kirkwood: use cpufreq_table_validate_and_show() cpufreq: longhaul: use cpufreq_table_validate_and_show() cpufreq: loongson2: use cpufreq_table_validate_and_show() cpufreq: maple: use cpufreq_table_validate_and_show() cpufreq: omap: use cpufreq_table_validate_and_show() cpufreq: p4-clockmod: use cpufreq_table_validate_and_show() cpufreq: pasemi: use cpufreq_table_validate_and_show() cpufreq: pmac: use cpufreq_table_validate_and_show() cpufreq: powernow: use cpufreq_table_validate_and_show() cpufreq: ppc: use cpufreq_table_validate_and_show() cpufreq: pxa: use cpufreq_table_validate_and_show() cpufreq: s3cx4xx: use cpufreq_table_validate_and_show() cpufreq: s5pv210: use cpufreq_table_validate_and_show() cpufreq: sa11x0: Expose frequency table cpufreq: sa11x0: let cpufreq core initialize struct policy fields cpufreq: sc520: use cpufreq_table_validate_and_show() cpufreq: sh: use cpufreq_table_validate_and_show() cpufreq: sparc: use cpufreq_table_validate_and_show() cpufreq: spear: use cpufreq_table_validate_and_show() cpufreq: speedstep: use cpufreq_table_validate_and_show() cpufreq: tegra: use cpufreq_table_validate_and_show() cpufreq: tegra: fix implementation of ->exit() cpufreq: arm_big_little: call cpufreq_frequency_table_put_attr() cpufreq: blackfin: call cpufreq_frequency_table_put_attr() cpufreq: exynos: call cpufreq_frequency_table_put_attr() cpufreq: loongson2: call cpufreq_frequency_table_put_attr() cpufreq: omap: call cpufreq_frequency_table_put_attr() cpufreq: pxa: call cpufreq_frequency_table_put_attr() cpufreq: sparc: call cpufreq_frequency_table_put_attr() cpufreq: define generic .attr, .exit() and .verify() routines cpufreq: acpi: Use generic cpufreq routines cpufreq: arm_big_little: Use generic cpufreq routines cpufreq: at32ap: Use generic cpufreq routines cpufreq: blackfin: Use generic cpufreq routines cpufreq: cpu0: Use generic cpufreq routines cpufreq: cris: Use generic cpufreq routines cpufreq: davinci: Use generic cpufreq routines cpufreq: dbx500: Use generic cpufreq routines cpufreq: e_powersaver: Use generic cpufreq routines cpufreq: elanfreq: Use generic cpufreq routines cpufreq: exynos: Use generic cpufreq routines cpufreq: ia64-acpi: Use generic cpufreq routines cpufreq: imx6q: Use generic cpufreq routines cpufreq: kirkwood: Use generic cpufreq routines cpufreq: longhaul: Use generic cpufreq routines cpufreq: loongson2: Use generic cpufreq routines cpufreq: maple: Use generic cpufreq routines cpufreq: omap: Use generic cpufreq routines cpufreq: p4-clockmod: Use generic cpufreq routines cpufreq: pasemi: Use generic cpufreq routines cpufreq: pmac: Use generic cpufreq routines cpufreq: powernow: Use generic cpufreq routines cpufreq: ppc-corenet: Use generic cpufreq routines cpufreq: ppc_cbe: Use generic cpufreq routines cpufreq: pxa: Use generic cpufreq routines cpufreq: s3cx4xx: Use generic cpufreq routines cpufreq: s5pv210: Use generic cpufreq routines cpufreq: sa11x0: Use generic cpufreq routines cpufreq: sc520: Use generic cpufreq routines cpufreq: sh: Use generic cpufreq routines cpufreq: sparc: Use generic cpufreq routines cpufreq: spear: Use generic cpufreq routines cpufreq: speedstep: Use generic cpufreq routines cpufreq: tegra: Use generic cpufreq routines cpufreq: call cpufreq_driver->get() after calling ->init() cpufreq: acpi: don't initialize part of policy that is set by core too cpufreq: arm_big_little: don't initialize part of policy that is set by core too cpufreq: at32ap: don't initialize part of policy that is set by core too cpufreq: blackfin: don't initialize part of policy that is set by core too cpufreq: cpu0: don't initialize part of policy that is set by core too cpufreq: nforce2: don't initialize part of policy that is set by core too cpufreq: cris: don't initialize part of policy that is set by core too cpufreq: davinci: don't initialize part of policy that is set by core too cpufreq: dbx500: don't initialize part of policy that is set by core too cpufreq: e_powersaver: don't initialize part of policy that is set by core too cpufreq: elanfreq: don't initialize part of policy that is set by core too cpufreq: exynos: don't initialize part of policy that is set by core too cpufreq: gx: don't initialize part of policy that is set by core too cpufreq: ia64-acpi: don't initialize part of policy that is set by core too cpufreq: imx6q: don't initialize part of policy that is set by core too cpufreq: integrator: don't initialize part of policy that is set by core too cpufreq: kirkwood: don't initialize part of policy that is set by core too cpufreq: longhaul: don't initialize part of policy that is set by core too cpufreq: loongson2: don't initialize part of policy that is set by core too cpufreq: maple: don't initialize part of policy that is set by core too cpufreq: omap: don't initialize part of policy that is set by core too cpufreq: p4: don't initialize part of policy that is set by core too cpufreq: pcc: don't initialize part of policy that is set by core too cpufreq: pmac: don't initialize part of policy that is set by core too cpufreq: powernow: don't initialize part of policy that is set by core too cpufreq: ppc: don't initialize part of policy that is set by core too cpufreq: pxa: don't initialize part of policy that is set by core too cpufreq: s3c: don't initialize part of policy that is set by core too cpufreq: s5pv210: don't initialize part of policy that is set by core too cpufreq: sa11x0: don't initialize part of policy that is set by core too cpufreq: sc520_freq: don't initialize part of policy that is set by core too cpufreq: sh: don't initialize part of policy that is set by core too cpufreq: spear: don't initialize part of policy that is set by core too cpufreq: speedstep: don't initialize part of policy that is set by core too cpufreq: tegra: don't initialize part of policy that is set by core too cpufreq: unicore2: don't initialize part of policy that is set by core too cpufreq: create cpufreq_generic_init() routine cpufreq: remove CONFIG_CPU_FREQ_TABLE cpufreq: cpu0: use cpufreq_generic_init() routine cpufreq: cris: use cpufreq_generic_init() routine cpufreq: davinci: use cpufreq_generic_init() routine cpufreq: dbx500: use cpufreq_generic_init() routine cpufreq: exynos: use cpufreq_generic_init() routine cpufreq: imx6q: use cpufreq_generic_init() routine cpufreq: kirkwood: use cpufreq_generic_init() routine cpufreq: loongson2: use cpufreq_generic_init() routine cpufreq: maple: use cpufreq_generic_init() routine cpufreq: omap: use cpufreq_generic_init() routine cpufreq: pasemi: use cpufreq_generic_init() routine cpufreq: pmac32: use cpufreq_generic_init() routine cpufreq: pmac64: use cpufreq_generic_init() routine cpufreq: s3c: use cpufreq_generic_init() routine cpufreq: s5pv210: use cpufreq_generic_init() routine cpufreq: sa11x0: use cpufreq_generic_init() routine cpufreq: spear: use cpufreq_generic_init() routine cpufreq: tegra: use cpufreq_generic_init() routine cpufreq: Implement light weight ->target_index() routine cpufreq: acpi: Convert to light weight ->target_index() routine cpufreq: arm_big_little: Convert to light weight ->target_index() routine cpufreq: at32ap: Convert to light weight ->target_index() routine cpufreq: blackfin: Convert to light weight ->target_index() routine cpufreq: cpu0: Convert to light weight ->target_index() routine cpufreq: cris: Convert to light weight ->target_index() routine cpufreq: davinci: Convert to light weight ->target_index() routine cpufreq: dbx500: Convert to light weight ->target_index() routine cpufreq: e_powersaver: Convert to light weight ->target_index() routine cpufreq: elanfreq: Convert to light weight ->target_index() routine cpufreq: exynos: Convert to light weight ->target_index() routine cpufreq: ia64: Convert to light weight ->target_index() routine cpufreq: imx6q: Convert to light weight ->target_index() routine cpufreq: kirkwood: Convert to light weight ->target_index() routine cpufreq: longhaul: Convert to light weight ->target_index() routine cpufreq: loongson2: Convert to light weight ->target_index() routine cpufreq: maple: Convert to light weight ->target_index() routine cpufreq: omap: Convert to light weight ->target_index() routine cpufreq: p4: Convert to light weight ->target_index() routine cpufreq: pasemi: Convert to light weight ->target_index() routine cpufreq: pmac32: Convert to light weight ->target_index() routine cpufreq: powernow: Convert to light weight ->target_index() routine cpufreq: ppc: Convert to light weight ->target_index() routine cpufreq: pxa: Convert to light weight ->target_index() routine cpufreq: s3c2416: Convert to light weight ->target_index() routine cpufreq: s3c64xx: Convert to light weight ->target_index() routine cpufreq: s5pv210: Convert to light weight ->target_index() routine cpufreq: sa11x0: Convert to light weight ->target_index() routine cpufreq: sc520: Convert to light weight ->target_index() routine cpufreq: sparc: Convert to light weight ->target_index() routine cpufreq: SPEAr: Convert to light weight ->target_index() routine cpufreq: speedstep: Convert to light weight ->target_index() routine cpufreq: tegra: Convert to light weight ->target_index() routine cpufreq: move freq change notifications to cpufreq core cpufreq: acpi: remove calls to cpufreq_notify_transition() cpufreq: arm_big_little: remove calls to cpufreq_notify_transition() cpufreq: at32ap: remove calls to cpufreq_notify_transition() cpufreq: blackfin: remove calls to cpufreq_notify_transition() cpufreq: cpu0: remove calls to cpufreq_notify_transition() cpufreq: cris: remove calls to cpufreq_notify_transition() cpufreq: davinci: remove calls to cpufreq_notify_transition() cpufreq: dbx500: remove calls to cpufreq_notify_transition() cpufreq: e_powersaver: remove calls to cpufreq_notify_transition() cpufreq: elanfreq: remove calls to cpufreq_notify_transition() cpufreq: exynos: remove calls to cpufreq_notify_transition() cpufreq: ia64-acpi: remove calls to cpufreq_notify_transition() cpufreq: imx6q: remove calls to cpufreq_notify_transition() cpufreq: kirkwood: remove calls to cpufreq_notify_transition() cpufreq: loongson2: remove calls to cpufreq_notify_transition() cpufreq: maple: remove calls to cpufreq_notify_transition() cpufreq: omap: remove calls to cpufreq_notify_transition() cpufreq: p4-clockmod: remove calls to cpufreq_notify_transition() cpufreq: pasemi: remove calls to cpufreq_notify_transition() cpufreq: pmac: remove calls to cpufreq_notify_transition() cpufreq: ppc: remove calls to cpufreq_notify_transition() cpufreq: pxa: remove calls to cpufreq_notify_transition() cpufreq: s3c: remove calls to cpufreq_notify_transition() cpufreq: s5pv210: remove calls to cpufreq_notify_transition() cpufreq: sa11x0: remove calls to cpufreq_notify_transition() cpufreq: sc520: remove calls to cpufreq_notify_transition() cpufreq: sparc: remove calls to cpufreq_notify_transition() cpufreq: SPEAr: remove calls to cpufreq_notify_transition() cpufreq: speedstep: remove calls to cpufreq_notify_transition() cpufreq: tegra: remove calls to cpufreq_notify_transition() cpufreq: tegra: remove target_cpu_speed[] array cpufreq: create cpufreq_generic_get() routine cpufreq: arm_big_little: use cpufreq_generic_get() routine cpufreq: at32ap: use cpufreq_generic_get() routine cpufreq: cpu0: use cpufreq_generic_get() routine cpufreq: davinci: use cpufreq_generic_get() routine cpufreq: dbx500: use cpufreq_generic_get() routine cpufreq: exynos: use cpufreq_generic_get() routine cpufreq: imx6q: use cpufreq_generic_get() routine cpufreq: loongson2: use cpufreq_generic_get() routine cpufreq: omap: use cpufreq_generic_get() routine cpufreq: ppc: use cpufreq_generic_get() routine cpufreq: s3c: use cpufreq_generic_get() routine cpufreq: s5pv210: use cpufreq_generic_get() routine cpufreq: spear: use cpufreq_generic_get() routine cpufreq: tegra: use cpufreq_generic_get() routine cpufreq: unicore2: use cpufreq_generic_get() routine Documentation/cpu-freq/cpu-drivers.txt | 27 ++-- Documentation/cpu-freq/governors.txt | 4 +- arch/arm/mach-davinci/Kconfig | 1 - arch/arm/mach-pxa/Kconfig | 3 - arch/arm/mach-sa1100/generic.c | 81 +++--------- arch/arm/mach-sa1100/generic.h | 4 +- arch/arm/mach-ux500/Kconfig | 1 - arch/blackfin/Kconfig | 1 - arch/cris/Kconfig | 2 - drivers/cpufreq/Kconfig | 11 -- drivers/cpufreq/Kconfig.arm | 11 -- drivers/cpufreq/Kconfig.powerpc | 6 - drivers/cpufreq/Kconfig.x86 | 13 -- drivers/cpufreq/Makefile | 5 +- drivers/cpufreq/acpi-cpufreq.c | 45 ++----- drivers/cpufreq/arm_big_little.c | 75 ++---------- drivers/cpufreq/at32ap-cpufreq.c | 119 +++++++++--------- drivers/cpufreq/blackfin-cpufreq.c | 54 ++------ drivers/cpufreq/cpufreq-cpu0.c | 103 +++------------- drivers/cpufreq/cpufreq-nforce2.c | 5 +- drivers/cpufreq/cpufreq.c | 217 +++++++++++++++++++++++++-------- drivers/cpufreq/cpufreq_governor.h | 5 +- drivers/cpufreq/cris-artpec3-cpufreq.c | 64 +--------- drivers/cpufreq/cris-etraxfs-cpufreq.c | 61 +-------- drivers/cpufreq/davinci-cpufreq.c | 87 +++---------- drivers/cpufreq/dbx500-cpufreq.c | 97 ++------------- drivers/cpufreq/e_powersaver.c | 59 ++------- drivers/cpufreq/elanfreq.c | 88 ++----------- drivers/cpufreq/exynos-cpufreq.c | 93 +++----------- drivers/cpufreq/exynos5440-cpufreq.c | 84 ++++--------- drivers/cpufreq/freq_table.c | 59 ++++++--- drivers/cpufreq/gx-suspmod.c | 5 +- drivers/cpufreq/ia64-acpi-cpufreq.c | 71 +---------- drivers/cpufreq/imx6q-cpufreq.c | 99 ++++----------- drivers/cpufreq/integrator-cpufreq.c | 14 +-- drivers/cpufreq/intel_pstate.c | 4 +- drivers/cpufreq/kirkwood-cpufreq.c | 107 ++++------------ drivers/cpufreq/longhaul.c | 45 +------ drivers/cpufreq/longrun.c | 4 +- drivers/cpufreq/loongson2_cpufreq.c | 72 ++--------- drivers/cpufreq/maple-cpufreq.c | 56 +-------- drivers/cpufreq/omap-cpufreq.c | 158 ++++++------------------ drivers/cpufreq/p4-clockmod.c | 53 ++------ drivers/cpufreq/pasemi-cpufreq.c | 51 +------- drivers/cpufreq/pcc-cpufreq.c | 10 +- drivers/cpufreq/pmac32-cpufreq.c | 53 ++------ drivers/cpufreq/pmac64-cpufreq.c | 57 +-------- drivers/cpufreq/powernow-k6.c | 67 ++-------- drivers/cpufreq/powernow-k7.c | 42 ++----- drivers/cpufreq/powernow-k8.c | 53 ++------ drivers/cpufreq/ppc-corenet-cpufreq.c | 69 ++--------- drivers/cpufreq/ppc_cbe_cpufreq.c | 50 +------- drivers/cpufreq/pxa2xx-cpufreq.c | 70 +++-------- drivers/cpufreq/pxa3xx-cpufreq.c | 46 ++----- drivers/cpufreq/s3c2416-cpufreq.c | 67 ++-------- drivers/cpufreq/s3c24xx-cpufreq.c | 37 +----- drivers/cpufreq/s3c64xx-cpufreq.c | 108 +++++----------- drivers/cpufreq/s5pv210-cpufreq.c | 105 ++++------------ drivers/cpufreq/sa1100-cpufreq.c | 49 ++------ drivers/cpufreq/sa1110-cpufreq.c | 46 ++----- drivers/cpufreq/sc520_freq.c | 64 +--------- drivers/cpufreq/sh-cpufreq.c | 22 +--- drivers/cpufreq/sparc-us2e-cpufreq.c | 42 ++----- drivers/cpufreq/sparc-us3-cpufreq.c | 44 ++----- drivers/cpufreq/spear-cpufreq.c | 72 ++--------- drivers/cpufreq/speedstep-centrino.c | 81 ++---------- drivers/cpufreq/speedstep-ich.c | 85 ++----------- drivers/cpufreq/speedstep-smi.c | 76 ++---------- drivers/cpufreq/tegra-cpufreq.c | 114 ++++------------- drivers/cpufreq/unicore2-cpufreq.c | 26 ++-- drivers/thermal/Kconfig | 1 - include/linux/cpufreq.h | 59 ++++++--- 72 files changed, 922 insertions(+), 2917 deletions(-) -- 1.7.12.rc2.18.g61b472e

10 years, 7 months

[PATCH 00/21] CPUIdle: Minor cleanups for 3.13

by Viresh Kumar

Hi Rafael/Daniel, This is a small cleanup patchset for CPUIdle which can go in 3.13 if it looks okay to you guys.. Mostly trivial patches but few are doing good/significant changes. Tested on my thinkpad with suspend/resume and didn't found any broken stuff with it. I a not very sure about this patch (As I don't know about all aspects of CPUIdle framework): cpuidle: don't call poll_idle_init() for every cpu -- viresh Viresh Kumar (21): cpuidle: fix indentation of cpumask cpuidle: Fix comments in cpuidle core cpuidle: make __cpuidle_get_cpu_driver() inline cpuidle: make __cpuidle_device_init() return void cpuidle: make __cpuidle_driver_init() return void cpuidle: rearrange code in __cpuidle_driver_init() cpuidle: rearrange __cpuidle_register_device() to keep minimal exit points cpuidle: use cpuidle_disabled() instead of "off" cpuidle: merge two if() statements for checking error cases cpuidle: reduce code duplication inside cpuidle_idle_call() cpuidle: replace multiline statements with single line in cpuidle_idle_call() cpuidle: call cpuidle_get_driver() from after taking cpuidle_driver_lock cpuidle: use drv instead of cpuidle_driver in show_current_driver() cpuidle: coupled: don't compare cpu masks unnecessarily cpuidle: free all state kobjects from cpuidle_free_state_kobj() cpuidle: avoid unnecessary kzalloc/free of struct cpuidle_device_kobj cpuidle: avoid unnecessary kzalloc/free of struct cpuidle_driver_kobj cpuidle: don't call poll_idle_init() for every cpu cpuidle: create list of registered drivers cpuidle: don't calculate time-diff if entered_state == 0 cpuidle: change governor from within cpuidle_replace_governor() drivers/cpuidle/coupled.c | 9 +-- drivers/cpuidle/cpuidle.c | 95 +++++++------------------ drivers/cpuidle/driver.c | 171 ++++++++++++++++++++------------------------- drivers/cpuidle/governor.c | 24 +++---- drivers/cpuidle/sysfs.c | 74 +++++++------------- include/linux/cpuidle.h | 25 +++++-- 6 files changed, 161 insertions(+), 237 deletions(-) -- 1.7.12.rc2.18.g61b472e

10 years, 7 months

[PATCH v5 0/4] Target CPU=Host implementation for KVM ARM/ARM64

by Anup Patel

It will be very useful for user space (QEMU/KVMTOOL) if it has a method of querying VCPU target type matching to underlying Host. We can use such querying mechanism and implement machine models in user space where VCPU target type is always same-as/similar-to underlying Host (i.e. Target CPU=Host). This patch series implements KVM_ARM_PREFERRED_TARGET vm ioclt for querying VCPU target type matching underlying host. Using this new ioctl we can implement VCPU target CPU=Host in user space. Also, it is not mandatory to call KVM_ARM_PREFERRED_TARGET vm ioctl and the old method of trying all possible target types using the KVM_ARM_VCPU_INIT ioctl to initialize VCPU works fine. V5: - Update documentation based on review comments V4: - Fixed files exchanged between patches - For now return zeroed features in struct kvm_vcpu_init instance V3: - Return -ENODEV if no preferred target available for host - Make KVM_ARM_PREFERRED_TARGET ioctl as vm ioctl V2: - Renamed the ioclt to KVM_ARM_PREFERRED_TARGET - Return struct kvm_vcpu_init instace instead of just target type V1: - Initial patch-set with ioctl named as KVM_ARM_SUITABLE_TARGET Anup Patel (4): ARM: KVM: Implement kvm_vcpu_preferred_target() function ARM64: KVM: Implement kvm_vcpu_preferred_target() function ARM/ARM64: KVM: Implement KVM_ARM_PREFERRED_TARGET ioctl KVM: Add documentation for KVM_ARM_PREFERRED_TARGET ioctl Documentation/virtual/kvm/api.txt | 31 +++++++++++++++++++++++++++---- arch/arm/include/asm/kvm_host.h | 1 + arch/arm/kvm/arm.c | 13 +++++++++++++ arch/arm/kvm/guest.c | 20 ++++++++++++++++++++ arch/arm64/include/asm/kvm_host.h | 1 + arch/arm64/kvm/guest.c | 20 ++++++++++++++++++++ include/uapi/linux/kvm.h | 1 + 7 files changed, 83 insertions(+), 4 deletions(-) -- 1.7.9.5

10 years, 7 months

[PATCH] tick: make sleep length calculation more accurate

by Daniel Lezcano

The sleep_length is computed in the tick_nohz_stop_sched_tick function but it is used later in the code with in between the local irq enabled. cpu_idle_loop tick_nohz_idle_enter [ exits with local irq enabled ] __tick_nohz_idle_enter tick_nohz_stop_sched_tick ... arch_cpu_idle menu_select [ uses here 'sleep_length' ] ... Between the computation of the sleep length and its usage, some interrupts can occur, making the sleep length shorter than actually it is. This patch fixes that by moving the sleep_length computation in the tick_nohz_get_sleep_length function and store the next_event for the device instead of the sleep_length. Signed-off-by: Daniel Lezcano <daniel.lezcano(a)linaro.org> --- include/linux/tick.h | 2 +- kernel/time/tick-sched.c | 5 +++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/include/linux/tick.h b/include/linux/tick.h index 5128d33..4932004 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -67,7 +67,7 @@ struct tick_sched { ktime_t idle_exittime; ktime_t idle_sleeptime; ktime_t iowait_sleeptime; - ktime_t sleep_length; + ktime_t next_event; unsigned long last_jiffies; unsigned long next_jiffies; ktime_t idle_expires; diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 3612fc7..2007a7f 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -673,7 +673,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, out: ts->next_jiffies = next_jiffies; ts->last_jiffies = last_jiffies; - ts->sleep_length = ktime_sub(dev->next_event, now); + ts->next_event = dev->next_event; return ret; } @@ -837,8 +837,9 @@ void tick_nohz_irq_exit(void) ktime_t tick_nohz_get_sleep_length(void) { struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched); + ktime_t now = ktime_get(); - return ts->sleep_length; + return ktime_sub(ts->next_event, now); } static void tick_nohz_restart(struct tick_sched *ts, ktime_t now) -- 1.7.9.5

10 years, 7 months

linus/master boot: 23 pass, 0 fail (v3.12-rc1-219-gb75ff5e)

by Kevin Hilman build bot

10 years, 7 months

Re: [LNG] [PATCH] linaro/configs: add hugepage support into linaro-base

by Kim Phillips

On Mon, 30 Sep 2013 12:00:36 -0700 Zi Shen Lim <zishen.lim(a)linaro.org> wrote: > On Mon, Sep 30, 2013 at 12:03 PM, Anders Roxell > <anders.roxell(a)linaro.org> wrote: > > Hi, > > > > On 2013-09-30 11:48, Zi Shen Lim wrote: > >> Signed-off-by: Zi Shen Lim <zishen.lim(a)linaro.org> > >> --- > >> linaro/configs/linaro-base.conf | 4 ++++ > >> 1 file changed, 4 insertions(+) > >> > >> diff --git a/linaro/configs/linaro-base.conf b/linaro/configs/linaro-base.conf > >> index 947ca1f..0093640 100644 > >> --- a/linaro/configs/linaro-base.conf > >> +++ b/linaro/configs/linaro-base.conf > >> @@ -92,3 +92,7 @@ CONFIG_HW_PERF_EVENTS=y > >> CONFIG_FUNCTION_TRACER=y > >> CONFIG_ENABLE_DEFAULT_TRACERS=y > >> CONFIG_PROC_DEVICETREE=y > >> +CONFIG_HUGETLB_PAGE=y > >> +CONFIG_HUGETLBFS=y > >> +CONFIG_TRANSPARENT_HUGEPAGE=y > >> +CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y > > This CONFIG_* fragments are already in linaro/configs/linaro-base64.conf > > right? > > > > Isn't linaro-base64.conf meant for ARMv8? > > We need hugepage support on existing 32-bit / ARMv7 platforms too, don't we? [adding linaro-kernel, Andrey] Yes, it seems the base64 component is a misnomer, at least for now. Meanwhile, if this patch is targeted to the main linaro kernel, please send via the linaro-kernel list, cc'ing linaro-networking. If not, then perhaps a separate .conf file is in order? Anyway, I think we'd all prefer a resolution within the main linaro kernel for hugepage support. > > and we are building with it in our ci/job/linux-lng* scripts... perhaps those should be patched as well. Kim

10 years, 7 months

linus/master boot: 29 pass, 0 fail (v3.12-rc3-36-gdf532d5)

by Kevin Hilman build bot

10 years, 7 months

linus/master boot: 29 pass, 2 fail (v3.12-rc3-14-g5c282e8)

by Kevin Hilman build bot

Automated DT boot report for various ARM defconfigs. Boot test simply checks if kernel can boot to initramfs with busybox and run some basic commands (e.g. 'cat /proc/cpuinfo'). Tree/Branch: linus/master Git describe: v3.12-rc3-14-g5c282e8 Commit: 5c282e858f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32 Failed boot tests (console logs at the end) =========================================== am335x-bone: FAIL: arm-omap2plus_defconfig armada-370-mirabox: FAIL: arm-mvebu_defconfig Full Report =========== arm-tegra_defconfig ------------------- tegra30-beaver PASS: 0 min 18.0 sec arm-omap2plus_defconfig ----------------------- am335x-boneblack PASS: 0 min 30.4 sec omap3-beagle-xm PASS: 1 min 24.1 sec omap4-panda-es PASS: 1 min 20.6 sec am335x-bone FAIL: 0 min 50.3 sec omap3-tobi,3530overo PASS: 0 min 42.4 sec omap4-panda PASS: 1 min 5.6 sec am335xbone PASS: 0 min 25.4 sec omap3-tobi,3730storm PASS: 0 min 41.2 sec omap3-beagle PASS: 1 min 0.2 sec arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual PASS: 0 min 16.5 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.3 sec imx6q-wandboard PASS: 0 min 15.1 sec arm-multi_v7_defconfig ---------------------- tegra30-beaver PASS: 0 min 15.2 sec am335x-boneblack PASS: 0 min 34.7 sec omap3-beagle-xm PASS: 0 min 51.8 sec armada-370-mirabox PASS: 0 min 19.5 sec omap4-panda PASS: 0 min 58.5 sec omap4-panda-es PASS: 1 min 6.6 sec sun4i-a10-cubieboard PASS: 0 min 11.7 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.5 sec omap3-tobi,3530overo PASS: 0 min 41.0 sec am335x-bone PASS: 0 min 33.5 sec imx6q-wandboard PASS: 0 min 15.7 sec omap3-tobi,3730storm PASS: 0 min 40.3 sec imx6dl-wandboard,wand-dual PASS: 0 min 16.8 sec omap3-beagle PASS: 0 min 56.5 sec arm-exynos_defconfig -------------------- exynos5250-arndale PASS: 0 min 30.0 sec arm-mvebu_defconfig ------------------- mirabox PASS: 0 min 16.9 sec armada-370-mirabox FAIL: 0 min 26.1 sec arm-sama5_defconfig ------------------- sama5d35ek PASS: 0 min 18.2 sec Console logs for failures ========================= arm-omap2plus_defconfig ----------------------- am335x-bone: FAIL: last 24 lines of boot log: --------------------------------------------- [ 2.024427] tps65217 0-0024: TPS65217 ID 0xf version 1.1 [ 2.096982] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6 [ 2.103428] davinci_mdio 4a101000.mdio: detected phy mask fffffffe [ 2.113581] libphy: 4a101000.mdio: probed [ 2.117987] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720 [ 2.128217] Random MACID = 82:52:35:e8:61:0d [ 2.139545] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800) [ 2.151735] net eth0: initializing cpsw version 1.12 (0) [ 2.159965] net eth0: phy found : id is : 0x7c0f1 [ 2.164972] libphy: PHY 4a101000.mdio:01 not found [ 2.170082] net eth0: phy 4a101000.mdio:01 not found on slave 1 [ 5.237514] libphy: 4a101000.mdio:00 - Link is Up - 100/Half [ 5.257563] IP-Config: Complete: [ 5.260992] device=eth0, hwaddr=82:52:35:e8:61:0d, ipaddr=192.168.1.174, mask=255.255.255.0, gw=192.168.1.254 [ 5.271971] host=192.168.1.174, domain=, nis-domain=(none) [ 5.278287] bootserver=192.168.1.2, rootserver=192.168.1.2, rootpath= [ 5.285341] nameserver0=192.168.1.254 [ 5.315472] VFS: Mounted root (nfs filesystem) readonly on device 0:12. [ 5.324921] devtmpfs: mounted [ 5.329211] Freeing unused kernel memory: 380K (c0723000 - c0782000) ~$off # PYBOOT: Exception: ERROR: Timeout waiting for command: printenv bootargs. # PYBOOT: Time: 50.27 seconds. # PYBOOT: Result: FAIL arm-mvebu_defconfig ------------------- armada-370-mirabox: FAIL: last 24 lines of boot log: ---------------------------------------------------- can't open /dev/null: No such file or directory Starting logging: OK Starting network... mount: mounting none on /sys/kernel/debug failed: No such file or directory /bin/sh: can't access tty; job control turned off / # usb 1-1: new high-speed USB device number 2 using orion-ehci hub 1-1:1.0: USB hub found hub 1-1:1.0: 4 ports detected usb 1-1.1: new high-speed USB device number 3 using orion-ehci usb-storage 1-1.1:1.0: USB Mass Storage device detected usb-storage 1-1.1:1.0: Quirks match for vid 05e3 pid 0723: 8000 scsi0 : usb-storage 1-1.1:1.0 usb 1-1.2: new high-speed USB device number 4 using orion-ehci usb-storage 1-1.2:1.0: USB Mass Storage device detected usb-storage 1-1.2:1.0: Quirks match for vid 05e3 pid 0723: 8000 scsi1 : usb-storage 1-1.2:1.0 scsi 0:0:0:0: Direct-Access Generic STORAGE DEVICE 9451 PQ: 0 ANSI: 0 sd 0:0:0:0: [sda] Attached SCSI removable disk scsi 1:0:0:0: Direct-Access Generic STORAGE DEVICE 9451 PQ: 0 ANSI: 0 sd 1:0:0:0: [sdb] Attached SCSI removable disk ~$off # PYBOOT: Exception: kernel: ERROR: did not start booting. # PYBOOT: Time: 26.15 seconds. # PYBOOT: Result: FAIL

10 years, 7 months

linus/master boot: 28 pass, 1 fail (v3.12-rc2-245-g30ceb4e)

by Kevin Hilman build bot

10 years, 7 months

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linaro-kernel September 2013