linaro-kernel April 2014

linaro-kernel@lists.linaro.org

103 participants
204 discussions

[PATCH 00/38] tick cleanups and bugfixes

by Viresh Kumar

Hi Thomas, These are separate cleanups from the timers/hrtimers ones I did. I was waiting for the merge window to close in order to send these and by the time it happened, I got a long pending list. These are mostly cleanups, reorders for better readability or efficiency, and few bugfixes. I have pushed these here as well: git://git.linaro.org/people/viresh.kumar/linux.git tick-cleanups They will be tested by kbuild bot also starting from tonight. Viresh Kumar (38): tick: align to Coding Guidelines tick: update doc comments for struct tick_sched tick: rearrange members of 'struct tick_sched' tick: move declaration of tick_cpu_device to tick.h tick: move definition of tick_get_device() to tick.h tick: create tick_get_cpu_device() to get tick_cpu_device on this cpu tick-oneshot: drop local_irq_save/restore from tick_switch_to_oneshot() tick-oneshot: move tick_is_oneshot_available() to tick-oneshot.c tick-oneshot: remove tick_resume_oneshot() tick-common: remove extra checks from tick_check_new_device() tick-common: fix wrong check in tick_check_replacement() tick-common: call tick_check_percpu() from tick_check_preferred() tick-common: don't check tick_oneshot_mode_active() from tick_check_preferred() tick-common: do additional checks in tick_check_preferred() tick-common: remove tick_check_replacement() tick-common: don't pass cpumask to tick_setup_device() tick-common: call tick_install_replacement() from tick_check_new_device() tick-common: don't set mode to CLOCK_EVT_MODE_UNUSED in tick_shutdown() tick-common: remove local variable 'broadcast' from tick_resume() tick-sched: initialize 'cpu' while defining it in tick_nohz_full_setup() tick-sched: no need to rewrite '1' to tick_nohz_enabled tick-sched: no need to recheck cpu_online() in can_stop_idle_tick() tick-sched: invert parameter of tick_check_oneshot_change() tick-sched: don't check tick_nohz_full_cpu() in __tick_nohz_task_switch() tick-sched: don't call local_softirq_pending() thrice in can_stop_idle_tick() tick-sched: don't call update_wall_time() when delta is lesser than tick_period tick-sched: remove 'regs' parameter of tick_sched_handle() tick-sched: remove parameters to {__}tick_nohz_task_switch() routines tick-sched: remove wrapper around __tick_nohz_task_switch() tick-sched: move nohz_full_buf[] inside tick_nohz_init() tick-sched: initialize 'ts' during its definition __tick_nohz_idle_enter() tick-sched: add comment about 'idle_active' in tick_nohz_idle_exit() tick-sched: replace tick_nohz_active with tick_nohz_enabled in tick_nohz_switch_to_nohz() tick-sched: remove local variable 'now' from tick_setup_sched_timer() tick-broadcast: do checks before taking locks in tick_do_broadcast_on_off() tick-broadcast: get rid of extra comparison in tick_do_broadcast_on_off() tick-broadcast: merge tick_do_broadcast_on_off() into tick_broadcast_on_off() clockevents: set event_handler to clockevents_handle_noop() in clockevents_exchange_device() include/linux/clockchips.h | 2 - include/linux/hrtimer.h | 3 - include/linux/tick.h | 65 ++++++++++------- kernel/hrtimer.c | 4 +- kernel/sched/core.c | 2 +- kernel/time/clockevents.c | 11 +-- kernel/time/tick-broadcast.c | 74 +++++++------------- kernel/time/tick-common.c | 126 +++++++++++++-------------------- kernel/time/tick-internal.h | 15 ++-- kernel/time/tick-oneshot.c | 37 +++++----- kernel/time/tick-sched.c | 163 +++++++++++++++++++++++-------------------- 11 files changed, 232 insertions(+), 270 deletions(-) -- 1.7.12.rc2.18.g61b472e

10 years, 5 months

mainline boot: 45 pass, 0 fail (v3.15-rc1-49-g10ec34f)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: mainline Git describe: v3.15-rc1-49-g10ec34f Full Report =========== omap2plus_defconfig ------------------- legacy,3730xm 0 min 53.4 sec: PASS am335x-boneblack 0 min 44.3 sec: PASS omap3-beagle-xm 1 min 2.7 sec: PASS legacy,3530beagle 0 min 34.0 sec: PASS (Warnings: 1) omap4-panda 1 min 13.1 sec: PASS omap3-overo-tobi 0 min 23.2 sec: PASS (Warnings: 1) am335x-bone 0 min 27.6 sec: PASS omap3-overo-storm-tobi 0 min 22.1 sec: PASS omap5-uevm 1 min 5.9 sec: PASS (Warnings: 1) omap4-panda-es 1 min 16.2 sec: PASS legacy,3730storm 0 min 22.9 sec: PASS legacy,3530overo 0 min 21.2 sec: PASS (Warnings: 1) multi_lpae_defconfig -------------------- omap5-uevm 1 min 41.1 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 12.5 sec: PASS tegra_defconfig --------------- tegra30-beaver 0 min 17.2 sec: PASS imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual 0 min 18.9 sec: PASS imx6dl-wandboard,wand-solo 0 min 18.9 sec: PASS imx6q-wandboard 0 min 17.2 sec: PASS sunxi_defconfig --------------- sun7i-a20-cubieboard2 0 min 22.7 sec: PASS sun4i-a10-cubieboard 0 min 17.8 sec: PASS bcm_defconfig ------------- bcm28155-ap 0 min 23.4 sec: PASS mvebu_v7_defconfig ------------------ armada-xp-openblocks-ax3-4 0 min 22.4 sec: PASS armada-370-mirabox 0 min 20.3 sec: PASS exynos_defconfig ---------------- exynos5250-arndale 0 min 29.8 sec: PASS multi_v7_defconfig ------------------ qcom-apq8074-dragonboard 0 min 17.2 sec: PASS tegra30-beaver 0 min 19.8 sec: PASS am335x-boneblack 0 min 37.7 sec: PASS omap3-beagle-xm 0 min 52.8 sec: PASS sun7i-a20-cubieboard2 0 min 12.4 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 55.6 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.4 sec: PASS sun4i-a10-cubieboard 0 min 22.3 sec: PASS bcm28155-ap 0 min 28.2 sec: PASS omap3-overo-tobi 0 min 22.2 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 18.1 sec: PASS am335x-bone 0 min 26.7 sec: PASS omap3-overo-storm-tobi 0 min 23.8 sec: PASS omap5-uevm 1 min 49.0 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 17.0 sec: PASS omap4-panda-es 0 min 55.2 sec: PASS imx6dl-wandboard,wand-dual 0 min 18.2 sec: PASS sama5_defconfig --------------- sama5d35ek 0 min 17.2 sec: PASS davinci_all_defconfig --------------------- legacy,dm365evm 0 min 17.5 sec: PASS da850-evm 0 min 15.6 sec: PASS

10 years, 5 months

[PATCH V1 Resend 0/5] tick: bugfixes

by Viresh Kumar

Hi Thomas, As suggested by you (https://lkml.org/lkml/2014/4/14/797), this is the first lot of changes I have. These are all potential bug fixes (Sorry if I haven't read the most obvious code correctly at some place :) ). Patch 2/5 isn't a bug fix but was required as a dependency for 3/5. Some discussions already happened for 5/5 here: https://lkml.org/lkml/2014/4/9/243 https://lkml.org/lkml/2014/4/9/346 I have tried to mark stable release wherever possible. Viresh Kumar (5): tick-common: fix wrong check in tick_check_replacement() tick-common: don't check tick_oneshot_mode_active() from tick_check_preferred() tick-common: do additional checks in tick_check_preferred() tick-sched: don't call update_wall_time() when delta is lesser than tick_period tick-sched: replace tick_nohz_active with tick_nohz_enabled in tick_nohz_switch_to_nohz() kernel/time/tick-common.c | 29 +++++++++++++++++++---------- kernel/time/tick-sched.c | 34 ++++++++++++++++++---------------- 2 files changed, 37 insertions(+), 26 deletions(-) -- 1.7.12.rc2.18.g61b472e

10 years, 5 months

[PATCH v9 00/12] In-kernel PSCI v0.2 emulation for KVM ARM/ARM64

by Anup Patel

Currently, KVM ARM/ARM64 only provides in-kernel emulation of Power State and Coordination Interface (PSCI) v0.1. This patchset aims at providing newer PSCI v0.2 for KVM ARM/ARM64 VCPUs such that it does not break current KVM ARM/ARM64 ABI. The user space tools (i.e. QEMU or KVMTOOL) will have to explicitly enable KVM_ARM_VCPU_PSCI_0_2 feature using KVM_ARM_VCPU_INIT ioctl for providing PSCI v0.2 to VCPUs. Changlog: V9: - Rename undefined PSCI_VER_xxx defines to PSCI_VERSION_xxx defines V8: - Add #define for possible values of migrate type in uapi/linux/psci.h - Simplified psci_affinity_mask() in psci.c - Update comments in kvm_psci_vcpu_suspend() to indicate that for KVM wakeup events are interrupts. - Unconditionally update r0 (or x0) in kvm_psci_vcpu_on() V7: - Make uapi/linux/psci.h inline with Ashwin's patch http://www.spinics.net/lists/arm-kernel/msg319090.html - Incorporate Rob's suggestions for uapi/linux/psci.h - Treat CPU_SUSPEND power-down request to be same as standby request. This further simplifies CPU_SUSPEND emulation. V6: - Introduce uapi/linux/psci.h for sharing PSCI defines between ARM kernel, ARM64 kernel, KVM ARM/ARM64 and user space - Make CPU_SUSPEND emulation similar to WFI emulation V5: - Have separate last patch to advertise KVM_CAP_ARM_PSCI_0_2 - Use kvm_psci_version() in kvm_psci_vcpu_on() - Return ALREADY_ON for PSCI v0.2 CPU_ON if VCPU is not paused - Remove per-VCPU suspend context - As-per PSCI v0.2 spec, only current CPU can suspend itself V4: - Implement all mandatory functions required by PSCI v0.2 V3: - Make KVM_ARM_VCPU_PSCI_0_2 feature experiementatl for now so that it fails for user space till all mandatory PSCI v0.2 functions are emulated by KVM ARM/ARM64 - Have separate patch for making KVM_ARM_VCPU_PSCI_0_2 feature available to user space. This patch can be defferred for now V2: - Don't rename PSCI return values KVM_PSCI_RET_NI and KVM_PSCI_RET_INVAL - Added kvm_psci_version() to get PSCI version available to VCPU - Fixed grammer in Documentation/virtual/kvm/api.txt V1: - Initial RFC PATCH Anup Patel (12): KVM: Add capability to advertise PSCI v0.2 support ARM/ARM64: KVM: Add common header for PSCI related defines ARM/ARM64: KVM: Add base for PSCI v0.2 emulation KVM: Documentation: Add info regarding KVM_ARM_VCPU_PSCI_0_2 feature ARM/ARM64: KVM: Make kvm_psci_call() return convention more flexible KVM: Add KVM_EXIT_SYSTEM_EVENT to user space API header ARM/ARM64: KVM: Emulate PSCI v0.2 SYSTEM_OFF and SYSTEM_RESET ARM/ARM64: KVM: Emulate PSCI v0.2 AFFINITY_INFO ARM/ARM64: KVM: Emulate PSCI v0.2 MIGRATE_INFO_TYPE and related functions ARM/ARM64: KVM: Fix CPU_ON emulation for PSCI v0.2 ARM/ARM64: KVM: Emulate PSCI v0.2 CPU_SUSPEND ARM/ARM64: KVM: Advertise KVM_CAP_ARM_PSCI_0_2 to user space Documentation/virtual/kvm/api.txt | 17 +++ arch/arm/include/asm/kvm_host.h | 2 +- arch/arm/include/asm/kvm_psci.h | 6 +- arch/arm/include/uapi/asm/kvm.h | 19 ++-- arch/arm/kvm/arm.c | 1 + arch/arm/kvm/handle_exit.c | 10 +- arch/arm/kvm/psci.c | 222 +++++++++++++++++++++++++++++++++---- arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/include/asm/kvm_psci.h | 6 +- arch/arm64/include/uapi/asm/kvm.h | 21 ++-- arch/arm64/kvm/handle_exit.c | 10 +- include/uapi/linux/Kbuild | 1 + include/uapi/linux/kvm.h | 9 ++ include/uapi/linux/psci.h | 78 +++++++++++++ 14 files changed, 356 insertions(+), 48 deletions(-) create mode 100644 include/uapi/linux/psci.h -- 1.7.9.5

10 years, 5 months

next boot: 46 pass, 0 fail (next-20140415)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: next Git describe: next-20140415 Full Report =========== omap2plus_defconfig ------------------- legacy,3730xm 0 min 51.7 sec: PASS am335x-boneblack 0 min 44.0 sec: PASS omap3-beagle-xm 1 min 0.8 sec: PASS legacy,3530beagle 0 min 38.0 sec: PASS (Warnings: 1) omap4-panda 1 min 9.7 sec: PASS omap3-overo-tobi 0 min 23.5 sec: PASS (Warnings: 1) am335x-bone 0 min 27.5 sec: PASS omap3-overo-storm-tobi 0 min 22.0 sec: PASS omap5-uevm 1 min 12.3 sec: PASS (Warnings: 1) omap4-panda-es 1 min 8.9 sec: PASS legacy,3730storm 0 min 20.0 sec: PASS legacy,3530overo 0 min 21.6 sec: PASS (Warnings: 1) multi_lpae_defconfig -------------------- omap5-uevm 1 min 36.9 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 12.5 sec: PASS tegra_defconfig --------------- tegra30-beaver 0 min 17.2 sec: PASS imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual 0 min 18.7 sec: PASS imx6dl-wandboard,wand-solo 0 min 18.9 sec: PASS imx6q-wandboard 0 min 17.3 sec: PASS sunxi_defconfig --------------- sun7i-a20-cubieboard2 0 min 22.8 sec: PASS sun4i-a10-cubieboard 0 min 18.0 sec: PASS bcm_defconfig ------------- bcm28155-ap 0 min 24.0 sec: PASS mvebu_v7_defconfig ------------------ armada-xp-openblocks-ax3-4 0 min 22.2 sec: PASS armada-370-mirabox 0 min 20.4 sec: PASS exynos_defconfig ---------------- exynos5420-arndale-octa 0 min 32.4 sec: PASS exynos5250-arndale 0 min 37.9 sec: PASS multi_v7_defconfig ------------------ qcom-apq8074-dragonboard 0 min 16.9 sec: PASS tegra30-beaver 0 min 25.2 sec: PASS am335x-boneblack 0 min 37.7 sec: PASS omap3-beagle-xm 0 min 53.3 sec: PASS sun7i-a20-cubieboard2 0 min 12.5 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 49.9 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.2 sec: PASS sun4i-a10-cubieboard 0 min 19.6 sec: PASS bcm28155-ap 0 min 27.7 sec: PASS omap3-overo-tobi 0 min 22.5 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 18.3 sec: PASS am335x-bone 0 min 31.8 sec: PASS omap3-overo-storm-tobi 0 min 24.2 sec: PASS omap5-uevm 1 min 41.9 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 16.9 sec: PASS omap4-panda-es 0 min 57.5 sec: PASS imx6dl-wandboard,wand-dual 0 min 18.2 sec: PASS sama5_defconfig --------------- sama5d35ek 0 min 17.2 sec: PASS davinci_all_defconfig --------------------- legacy,dm365evm 0 min 17.8 sec: PASS da850-evm 0 min 15.6 sec: PASS

10 years, 5 months

[PATCH V2] sched/core: fix formatting issues in sched_can_stop_tick()

by Viresh Kumar

sched_can_stop_tick() was using 7 spaces instead of 8 spaces or a 'tab' at the beginning of each line. Which doesn't align with the Coding Guidelines. Also it removes the *rq variable as it was used at only one place and hence we can directly use this_rq() instead. Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- V1->V2: Rebased over: https://lkml.org/lkml/2014/3/19/456 kernel/sched/core.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 1fadf61..3a4bb63 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -666,19 +666,15 @@ static inline bool got_nohz_idle_kick(void) #ifdef CONFIG_NO_HZ_FULL bool sched_can_stop_tick(void) { - struct rq *rq; - - rq = this_rq(); - - /* - * More than one running task need preemption. - * nr_running update is assumed to be visible - * after IPI is sent from wakers. - */ - if (rq->nr_running > 1) - return false; + /* + * More than one running task need preemption. + * nr_running update is assumed to be visible + * after IPI is sent from wakers. + */ + if (this_rq()->nr_running > 1) + return false; - return true; + return true; } #endif /* CONFIG_NO_HZ_FULL */ -- 1.7.12.rc2.18.g61b472e

10 years, 5 months

[PATCH] sched/core: fix formatting issues in sched_can_stop_tick()

by Viresh Kumar

sched_can_stop_tick() was using 7 spaces instead of 8 spaces or a 'tab' at the beginning of each line. Which doesn't align with the Coding Guidelines. Also it removes the *rq variable as it was used at only one place and hence we can directly use this_rq() instead. Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- I don't think rq = tihs_rq() has to be done before smp_mb(), in case yes sorry for this patch :( kernel/sched/core.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 268a45e..13299c5 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -666,18 +666,14 @@ static inline bool got_nohz_idle_kick(void) #ifdef CONFIG_NO_HZ_FULL bool sched_can_stop_tick(void) { - struct rq *rq; - - rq = this_rq(); - - /* Make sure rq->nr_running update is visible after the IPI */ - smp_rmb(); + /* Make sure rq->nr_running update is visible after the IPI */ + smp_rmb(); - /* More than one running task need preemption */ - if (rq->nr_running > 1) - return false; + /* More than one running task need preemption */ + if (this_rq()->nr_running > 1) + return false; - return true; + return true; } #endif /* CONFIG_NO_HZ_FULL */ -- 1.7.12.rc2.18.g61b472e

10 years, 5 months

[PATCH v8 00/12] In-kernel PSCI v0.2 emulation for KVM ARM/ARM64

by Anup Patel

Currently, KVM ARM/ARM64 only provides in-kernel emulation of Power State and Coordination Interface (PSCI) v0.1. This patchset aims at providing newer PSCI v0.2 for KVM ARM/ARM64 VCPUs such that it does not break current KVM ARM/ARM64 ABI. The user space tools (i.e. QEMU or KVMTOOL) will have to explicitly enable KVM_ARM_VCPU_PSCI_0_2 feature using KVM_ARM_VCPU_INIT ioctl for providing PSCI v0.2 to VCPUs. Changlog: V8: - Add #define for possible values of migrate type in uapi/linux/psci.h - Simplified psci_affinity_mask() in psci.c - Update comments in kvm_psci_vcpu_suspend() to indicate that for KVM wakeup events are interrupts. - Unconditionally update r0 (or x0) in kvm_psci_vcpu_on() V7: - Make uapi/linux/psci.h inline with Ashwin's patch http://www.spinics.net/lists/arm-kernel/msg319090.html - Incorporate Rob's suggestions for uapi/linux/psci.h - Treat CPU_SUSPEND power-down request to be same as standby request. This further simplifies CPU_SUSPEND emulation. V6: - Introduce uapi/linux/psci.h for sharing PSCI defines between ARM kernel, ARM64 kernel, KVM ARM/ARM64 and user space - Make CPU_SUSPEND emulation similar to WFI emulation V5: - Have separate last patch to advertise KVM_CAP_ARM_PSCI_0_2 - Use kvm_psci_version() in kvm_psci_vcpu_on() - Return ALREADY_ON for PSCI v0.2 CPU_ON if VCPU is not paused - Remove per-VCPU suspend context - As-per PSCI v0.2 spec, only current CPU can suspend itself V4: - Implement all mandatory functions required by PSCI v0.2 V3: - Make KVM_ARM_VCPU_PSCI_0_2 feature experiementatl for now so that it fails for user space till all mandatory PSCI v0.2 functions are emulated by KVM ARM/ARM64 - Have separate patch for making KVM_ARM_VCPU_PSCI_0_2 feature available to user space. This patch can be defferred for now V2: - Don't rename PSCI return values KVM_PSCI_RET_NI and KVM_PSCI_RET_INVAL - Added kvm_psci_version() to get PSCI version available to VCPU - Fixed grammer in Documentation/virtual/kvm/api.txt V1: - Initial RFC PATCH Anup Patel (12): KVM: Add capability to advertise PSCI v0.2 support ARM/ARM64: KVM: Add common header for PSCI related defines ARM/ARM64: KVM: Add base for PSCI v0.2 emulation KVM: Documentation: Add info regarding KVM_ARM_VCPU_PSCI_0_2 feature ARM/ARM64: KVM: Make kvm_psci_call() return convention more flexible KVM: Add KVM_EXIT_SYSTEM_EVENT to user space API header ARM/ARM64: KVM: Emulate PSCI v0.2 SYSTEM_OFF and SYSTEM_RESET ARM/ARM64: KVM: Emulate PSCI v0.2 AFFINITY_INFO ARM/ARM64: KVM: Emulate PSCI v0.2 MIGRATE_INFO_TYPE and related functions ARM/ARM64: KVM: Fix CPU_ON emulation for PSCI v0.2 ARM/ARM64: KVM: Emulate PSCI v0.2 CPU_SUSPEND ARM/ARM64: KVM: Advertise KVM_CAP_ARM_PSCI_0_2 to user space Documentation/virtual/kvm/api.txt | 17 +++ arch/arm/include/asm/kvm_host.h | 2 +- arch/arm/include/asm/kvm_psci.h | 6 +- arch/arm/include/uapi/asm/kvm.h | 19 ++-- arch/arm/kvm/arm.c | 1 + arch/arm/kvm/handle_exit.c | 10 +- arch/arm/kvm/psci.c | 222 +++++++++++++++++++++++++++++++++---- arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/include/asm/kvm_psci.h | 6 +- arch/arm64/include/uapi/asm/kvm.h | 21 ++-- arch/arm64/kvm/handle_exit.c | 10 +- include/uapi/linux/Kbuild | 1 + include/uapi/linux/kvm.h | 9 ++ include/uapi/linux/psci.h | 77 +++++++++++++ 14 files changed, 355 insertions(+), 48 deletions(-) create mode 100644 include/uapi/linux/psci.h -- 1.7.9.5

10 years, 5 months

mainline boot: 45 pass, 0 fail (v3.15-rc1-12-g55101e2)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: mainline Git describe: v3.15-rc1-12-g55101e2 Full Report =========== omap2plus_defconfig ------------------- legacy,3730xm 0 min 50.3 sec: PASS am335x-boneblack 0 min 43.7 sec: PASS omap3-beagle-xm 1 min 1.0 sec: PASS legacy,3530beagle 0 min 35.8 sec: PASS (Warnings: 1) omap4-panda 1 min 11.1 sec: PASS omap3-overo-tobi 0 min 23.2 sec: PASS (Warnings: 1) am335x-bone 0 min 32.4 sec: PASS omap3-overo-storm-tobi 0 min 21.7 sec: PASS omap5-uevm 1 min 9.1 sec: PASS (Warnings: 1) omap4-panda-es 1 min 12.0 sec: PASS legacy,3730storm 0 min 23.4 sec: PASS legacy,3530overo 0 min 21.2 sec: PASS (Warnings: 1) multi_lpae_defconfig -------------------- omap5-uevm 1 min 38.8 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 12.3 sec: PASS tegra_defconfig --------------- tegra30-beaver 0 min 17.2 sec: PASS imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual 0 min 18.6 sec: PASS imx6dl-wandboard,wand-solo 0 min 19.0 sec: PASS imx6q-wandboard 0 min 17.1 sec: PASS sunxi_defconfig --------------- sun7i-a20-cubieboard2 0 min 22.8 sec: PASS sun4i-a10-cubieboard 0 min 17.7 sec: PASS bcm_defconfig ------------- bcm28155-ap 0 min 22.6 sec: PASS mvebu_v7_defconfig ------------------ armada-xp-openblocks-ax3-4 0 min 22.4 sec: PASS armada-370-mirabox 0 min 20.3 sec: PASS exynos_defconfig ---------------- exynos5250-arndale 0 min 29.9 sec: PASS multi_v7_defconfig ------------------ qcom-apq8074-dragonboard 0 min 16.8 sec: PASS tegra30-beaver 0 min 20.2 sec: PASS am335x-boneblack 0 min 38.2 sec: PASS omap3-beagle-xm 0 min 48.9 sec: PASS sun7i-a20-cubieboard2 0 min 12.5 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 55.0 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.4 sec: PASS sun4i-a10-cubieboard 0 min 18.8 sec: PASS bcm28155-ap 0 min 26.6 sec: PASS omap3-overo-tobi 0 min 22.4 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 18.2 sec: PASS am335x-bone 0 min 26.8 sec: PASS omap3-overo-storm-tobi 0 min 23.9 sec: PASS omap5-uevm 1 min 39.9 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 17.0 sec: PASS omap4-panda-es 0 min 51.1 sec: PASS imx6dl-wandboard,wand-dual 0 min 18.6 sec: PASS sama5_defconfig --------------- sama5d35ek 0 min 17.1 sec: PASS davinci_all_defconfig --------------------- legacy,dm365evm 0 min 17.5 sec: PASS da850-evm 0 min 15.7 sec: PASS

10 years, 5 months

[PATCH v9 0/2] hibernation support on ARM

by Sebastian Capella

Cc: Russ Dill <Russ.Dill(a)ti.com> Cc: "Rafael J. Wysocki" <rjw(a)rjwysocki.net> Cc: Russell King <linux(a)arm.linux.org.uk> Cc: Pavel Machek <pavel(a)ucw.cz> Cc: Lorenzo Pieralisi <lorenzo.pieralisi(a)arm.com> Cc: Stephen Warren <swarren(a)nvidia.com> Cc: Len Brown <len.brown(a)intel.com> Cc: Nicolas Pitre <nico(a)linaro.org> Cc: Santosh Shilimkar <santosh.shilimkar(a)ti.com> Cc: Will Deacon <will.deacon(a)arm.com> Cc: Jonathan Austin <jonathan.austin(a)arm.com> Cc: Catalin Marinas <catalin.marinas(a)arm.com> Cc: "Uwe Kleine-König" <u.kleine-koenig(a)pengutronix.de> Cc: Stephen Boyd <sboyd(a)codeaurora.org> Cc: Laura Abbott <lauraa(a)codeaurora.org> Cc: Jiang Liu <liuj97(a)gmail.com> Cc: Sricharan R <r.sricharan(a)ti.com> Cc: Victor Kamensky <victor.kamensky(a)linaro.org> Cc: Stefano Stabellini <stefano.stabellini(a)eu.citrix.com> Cc: Ben Dooks <ben.dooks(a)codethink.co.uk> Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Robin Holt <robin.m.holt(a)gmail.com> Cc: Konstantin Khlebnikov <k.khlebnikov(a)samsung.com> Cc: Steven Capper <steve.capper(a)linaro.org> Cc: Tejun Heo <tj(a)kernel.org> Patches adding support for hibernation on ARM - ARM hibernation / suspend-to-disk - Change soft_restart to use non-tracing raw_local_irq_disable Patches based on v3.14-rc7 tag, verified hibernation on beaglebone black on a branch based on 3.13 merged with initial omap support from Russ Dill which can be found here (includes v1 patchset): http://git.linaro.org/git-ro/people/sebastian.capella/linux.git hibernation_3.13_russMerge [PATCH v9 1/2] ARM: avoid tracers in soft_restart arch/arm/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Use raw_local_irq_disable in place of local_irq_disable to avoid infinite abort recursion while tracing. (unchanged since v3) [PATCH v9 2/2] ARM hibernation / suspend-to-disk arch/arm/Kconfig | 5 ++ arch/arm/include/asm/memory.h | 1 + arch/arm/kernel/Makefile | 1 + arch/arm/kernel/hibernate.c | 107 +++++++++++++++++++++++++++++++++++++++++ include/linux/suspend.h | 2 + 5 files changed, 116 insertions(+) Adds support for ARM based hibernation Additional notes: ----------------- There are two checkpatch warnings added by this patch. These follow behavior in existing hibernation implementations on other platforms. WARNING: externs should be avoided in .c files #131: FILE: arch/arm/kernel/hibernate.c:25: +extern const void __nosave_begin, __nosave_end; This extern is picking up the linker nosave region definitions, only used in hibernate. Follows same extern line used mips, powerpc, s390, sh, sparc, x86 & unicore32 WARNING: externs should be avoided in .c files #209: FILE: arch/arm/kernel/hibernate.c:103: + extern void call_with_stack(void (*fn)(void *), void *arg, void *sp); This extern is used in the arch/arm/ in hibernate, process and bL_switcher Changes in v9: -------------- * replace pfn calculationwith virt_to_pfn * automatically allow ARCH_HIBERNATION_POSSIBLE if SUSPEND permitted * move handling of ARCH config flag to arch/arm/Kconfig Changes in v8: -------------- * remove definition and use of __pa_symbol Changes in v7: -------------- * remove use of RELOC_HIDE macro * remove unused #includes * fixup comment for arch_restore_image * ensure alignment of resume stack on 8 byte boundary Changes in v6: -------------- * Simplify static variable names Changes in v5: -------------- * Fixed checkpatch warning on trailing whitespace Changes in v4: -------------- * updated comment for soft_restart with review feedback * dropped freeze_processes patch which was queued separately to 3.14 by Rafael Wysocki: https://lkml.org/lkml/2014/2/25/683 Changes in v3: -------------- * added comment to use of soft_restart * drop irq disable soft_restart patch * add patch to avoid tracers in soft_restart by using raw_local_irq_* Changes in v2: -------------- * Removed unneeded flush_thread, use of __naked and cpu_init. * dropped Cyril Chemparathy <cyril(a)ti.com> from Cc: list as emails are bouncing. Thanks, Sebastian Capella

10 years, 5 months

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linaro-kernel April 2014