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2016-04-28ARM: dts: am57xx: Introduce industrial grade thermal thresholdsKeerthy
The silicon version ES2.0 onwards are industrial grade samples and have higher thermal thresholds than commecial grade samples. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28ARM: dts: am57xx: Introduce commercial grade thermal thresholdsKeerthy
The silicon versions which are non ES2.0 are commercial grade silicon and have lower thermal thresholds. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-28IB/mlx5: Expose correct max_sge_rd limitSagi Grimberg
mlx5 devices (Connect-IB, ConnectX-4, ConnectX-4-LX) has a limitation where rdma read work queue entries cannot exceed 512 bytes. A rdma_read wqe needs to fit in 512 bytes: - wqe control segment (16 bytes) - rdma segment (16 bytes) - scatter elements (16 bytes each) So max_sge_rd should be: (512 - 16 - 16) / 16 = 30. Cc: linux-stable@vger.kernel.org Reported-by: Christoph Hellwig <hch@lst.de> Tested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagig@grimberg.me> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-04-28Merge tag 'hip0x-dt-for-4.7' of git://github.com/hisilicon/linux-hisi into ↵Arnd Bergmann
next/dt64 Merge "ARM64: DT: Hisilicon hip05 and hip06 updates for 4.7" Wei Xu: - Fix its node without msi-cells for hip05 - Add nor flash node for hip05 D02 board - Add initial dts for hip06 D03 board - Reorder and add the hip06 D03 binding in the binding document * tag 'hip0x-dt-for-4.7' of git://github.com/hisilicon/linux-hisi: Documentation: arm64: Add Hisilicon Hip06 D03 dts binding arm64: dts: Add initial dts for Hisilicon Hip06 D03 board arm64: dts: hip05: Add nor flash support arm64: dts: hip05: fix its node without msi-cells
2016-04-28Merge tag 'renesas-arm64-dt2-for-v4.7' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt64 Merge "Second Round of Renesas ARM64 Based SoC DT Updates for v4.7" from Simon Horman: * Don't disable referenced optional clocks in DT of r8a7795 SoC * Populate EXTALR in DT of salvator-x board * Enable PCIe in DT of salvator-x board * tag 'renesas-arm64-dt2-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: arm64: dts: r8a7795: Don't disable referenced optional clocks arm64: dts: salvator-x: populate EXTALR arm64: dts: r8a7795: enable PCIe on Salvator-X arm64: dts: r8a7795: Add PCIe nodes arm64: dts: r8a7795: Use USB3.0 fallback compatibility string arm64: dts: r8a7795: Add CAN support arm64: dts: r8a7795: Add CAN external clock support
2016-04-28Merge tag 'samsung-dt-4.7-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt Merge "Secound round of Samsung Device Tree updates and improvements for v4.7" from Krzysztof Kozlowski: 1. Cleanup regulator bindings on Exynos5420 boards. 2. Support MIC bypass in display path for Exynos5420. 3. Enable PRNG and SSS for all Exynos4 devices. * tag 'samsung-dt-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: dts: exynos: Enable PRNG and SSS for all Exynos4 devices ARM: dts: exynos: Add exynos5420-fimd compatible ARM: dts: exynos: Remove unsupported s2mps11 regulator bindings from Exynos5420 boards
2016-04-28cpupower: Add cpuidle parts into libraryThomas Renninger
This more or less is a renaming and moving of functions and should not introduce any functional change. cpupower was built from cpufrequtils (which had a C library providing easy access to cpu frequency platform info). In the meantime it got enhanced by quite some neat cpuidle userspace tools. Now the cpu idle functions have been separated and added to the cpupower.so library. So beside an already existing public header file: cpufreq.h cpupower now also exports these cpu idle functions in: cpuidle.h Here again pasted for better review of the interfaces: ====================================== int cpuidle_is_state_disabled(unsigned int cpu, unsigned int idlestate); int cpuidle_state_disable(unsigned int cpu, unsigned int idlestate, unsigned int disable); unsigned long cpuidle_state_latency(unsigned int cpu, unsigned int idlestate); unsigned long cpuidle_state_usage(unsigned int cpu, unsigned int idlestate); unsigned long long cpuidle_state_time(unsigned int cpu, unsigned int idlestate); char *cpuidle_state_name(unsigned int cpu, unsigned int idlestate); char *cpuidle_state_desc(unsigned int cpu, unsigned int idlestate); unsigned int cpuidle_state_count(unsigned int cpu); char *cpuidle_get_governor(void); char *cpuidle_get_driver(void); ====================================== Signed-off-by: Thomas Renninger <trenn@suse.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28cpupowerutils: bench: trivial fix of spelling mistake on "average"Colin Ian King
fix spelling mistake, avarage -> average Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Thomas Renninger <trenn@suse.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28Fix cpupower manpages "NAME" sectionMattia Dongili
The token before "-" should be the program name, no spaces allowed. See man(7) and lexgrog(1). Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Thomas Renninger <trenn@suse.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28cpupower: bench: parse.c: fix several resource leaksColin Ian King
The error handling in prepare_output has several issues with resource leaks. Ensure that filename is free'd and the directory stream DIR is closed before returning. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Thomas Renninger <trenn@suse.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28Honour user's LDFLAGSMattia Dongili
Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Thomas Renninger <trenn@suse.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28Merge tag 'renesas-dt2-for-v4.7' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt Merge "Second Round of Renesas ARM Based SoC DT Updates for v4.7" from Simon Horman * Don't disable referenced optional clocks in DT of R-Car Gen 1 & 2 SoCs * tag 'renesas-dt2-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: dts: r8a7794: Don't disable referenced optional clocks ARM: dts: r8a7793: Don't disable referenced optional clocks ARM: dts: r8a7790: Don't disable referenced optional clocks ARM: dts: r8a7779: Don't disable referenced optional clocks ARM: dts: r8a7778: Don't disable referenced optional clocks
2016-04-28Merge tag 'lpc32xx-dt-4.7' of git://github.com/vzapolskiy/linux-lpc32xx into ↵Arnd Bergmann
next/dt Merge "NXP LPC32xx device tree updates for v4.7" from Vladimir Zapolskiy: This includes a few functional changes: * new representation of MIC, SIC1 and SIC2 interrupt controllers, * disabled by default SPI1, SPI2, SSP0 and SSP1 SPI controllers in shared lpc32xx.dtsi file, * added clock sources for SPI1 and SPI2, * set default clock rate of HCLK PLL to main osc rate multiplied by 16. Also there are some non-functional changes: * flatten board DTS files by exploiting device node labels, * add 'partitions' device node for NAND SLC / MTD OF, * correct Atmel vendor prefix to describe on board AT24 EEPROMs, * rename board DTS files by adding SoC name prefix. Since now DTS files of LPC32xx boards match "^lpc32[2345]0-" pattern. * tag 'lpc32xx-dt-4.7' of git://github.com/vzapolskiy/linux-lpc32xx: ARM: dts: lpc32xx: phy3250: add SoC name prefix to board dts file ARM: dts: lpc32xx: phy3250: add NAND partitions device node ARM: dts: lpc32xx: phy3250: avoid extension of device nodes by absolute path ARM: dts: lpc32xx: ea3250: add SoC name prefix to board dts file ARM: dts: lpc32xx: ea3250: fix Atmel at24 eeprom vendor ARM: dts: lpc32xx: ea3250: add NAND partitions device node ARM: dts: lpc32xx: ea3250: avoid extension of device nodes by absolute path ARM: dts: lpc32xx: reparent SIC1 and SIC2 interrupts from MIC dt-bindings: interrupt-controllers: add description of SIC1 and SIC2 ARM: dts: lpc32xx: disabled ssp0/spi1 & ssp1/spi2 by default ARM: dts: phy3250: enable ssp0 ARM: dts: lpc32xx: add clock properties to spi nodes ARM: dts: lpc32xx: set default clock rate of HCLK PLL
2016-04-28Merge tag 'at91-dt2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/dt Merge "Second batch of DT changes for 4.7" from Nicolas Ferre: - three low priority fixes: - sama5d2: one pin definition and dependency with the slow clock for watchdog - sama5d4: definition of watchdog IRQ property - addition of the new shutdown controller to sama5d2 & sama5d2 Xplained * tag 'at91-dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: ARM: dts: at91: sama5d2: add slow clock to watchdog node ARM: dts: at91: sama5d2: add shutdown controller node ARM: dts: at91: sama5d4: add watchdog interrupt property ARM: dts: at91: fix typo in sama5d2 PIN_PD24 description
2016-04-28Merge tag 'sti-dt-for-v4.7b-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti into next/dt Merge "STi DT updates for v4.7 #1" from Maxime Coquelin: Highlights: ----------- - Add CPUFreq support to STiH407 family - Add Mailbox nodes to STiH407 family - Add RemoteProc nodes to STiH407 family - Use 'reserved-memory' for DMA memory on STiH407 - Use the LPC timer as a clocksource * tag 'sti-dt-for-v4.7b-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti: ARM: dts: STi: STih407: Switch LPC mode from RTC to Clocksource ARM: dts: STiH407: Move over to using the 'reserved-memory' API for obtaining DMA memory ARM: dts: STiH407: Add nodes for RemoteProc ARM: dts: STi: stih407-family: Add nodes for Mailbox ARM: dts: STi: STiH407: Provide CPU with a means to look-up Major number ARM: dts: STi: STiH407: Link CPU with its voltage supply ARM: dts: STi: STiH407: Provide CPU with clocking information ARM: dts: STi: STiH407: Provide generic (safe) DVFS configuration
2016-04-28cpufreq: st: enable selective initialization based on the platformSudeep Holla
The sti-cpufreq does unconditional registration of the cpufreq-dt driver which causes issue on an multi-platform build. For example, on Vexpress TC2 platform, we get the following error on boot: cpu cpu0: OPP-v2 not supported cpu cpu0: Not doing voltage scaling cpu: dev_pm_opp_of_cpumask_add_table: couldn't find opp table for cpu:0, -19 cpu cpu0: dev_pm_opp_get_max_volt_latency: Invalid regulator (-6) ... arm_big_little: bL_cpufreq_register: Failed registering platform driver: vexpress-spc, err: -17 The actual driver fails to initialise as cpufreq-dt is probed successfully, which is incorrect. This issue can happen to any platform not using cpufreq-dt in a multi-platform build. This patch adds a check to do selective initialization of the driver. Fixes: ab0ea257fc58 (cpufreq: st: Provide runtime initialised driver for ST's platforms) Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Cc: 4.5+ <stable@vger.kernel.org> # 4.5+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/Viresh Kumar
Move cpufreq bits for mvebu into drivers/cpufreq/ directory, that's where they really belong to. Compiled tested only. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28cpufreq: dt: Kill platform-dataViresh Kumar
There are no more users of platform-data for cpufreq-dt driver, get rid of it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28mvebu: Use dev_pm_opp_set_sharing_cpus() to mark OPP tables as sharedViresh Kumar
That will allow us to avoid using cpufreq-dt platform data. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28cpufreq: dt: Identify cpu-sharing for platforms without operating-points-v2Viresh Kumar
Existing platforms, which do not support operating-points-v2, can explicitly tell the opp core that some of the CPUs share opp tables, with help of dev_pm_opp_set_sharing_cpus(). For such platforms, explicitly ask the opp core to provide list of CPUs sharing the opp table with current cpu device, before falling back to platform data. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28Merge back earlier cpufreq material for v4.7.Rafael J. Wysocki
2016-04-28PM / OPP: Add dev_pm_opp_get_sharing_cpus()Viresh Kumar
OPP core allows a platform to mark OPP table as shared, when the platform isn't using operating-points-v2 bindings. And, so there should be a non DT way of finding out if the OPP table is shared or not. This patch adds dev_pm_opp_get_sharing_cpus(), which first tries to get OPP sharing information from the opp-table (in case it is already marked as shared), otherwise it uses the existing DT way of finding sharing information. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28PM / OPP: Mark cpumask as const in dev_pm_opp_set_sharing_cpus()Viresh Kumar
dev_pm_opp_set_sharing_cpus() isn't supposed to update the cpumask passed as its parameter, and so it should always have been marked 'const'. Do it now. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28PM / OPP: -ENOSYS is applicable only to syscallsViresh Kumar
Some of the routines have used -ENOSYS for the cases where the functionality isn't implemented in the kernel. But ENOSYS is supposed to be used only for syscalls. Replace that with -ENOTSUPP, which specifically means that the operation isn't supported. While at it, replace exiting -EINVAL errors for similar cases to -ENOTSUPP. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28ARM: cpuidle: Pass on arm_cpuidle_suspend()'s return valueJames Morse
arm_cpuidle_suspend() may return -EOPNOTSUPP, or any value returned by the cpu_ops/cpuidle_ops suspend call. arm_enter_idle_state() doesn't update 'ret' with this value, meaning we always signal success to cpuidle_enter_state(), causing it to update the usage counters as if we succeeded. Fixes: 191de17aa3c1 ("ARM64: cpuidle: Replace cpu_suspend by the common ARM/ARM64 function") Signed-off-by: James Morse <james.morse@arm.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: 4.1+ <stable@vger.kernel.org> # 4.1+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28PM / sleep: Drop unused `info' variableThierry Reding
Commit 32e8d689dc12 (PM / sleep: trace_device_pm_callback coverage in dpm_prepare/complete) removed all users of this variable but forgot to remove the variable itself. Signed-off-by: Thierry Reding <treding@nvidia.com> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-04-28cpufreq: governor: Change confusing struct field and variable namesRafael J. Wysocki
The name of the prev_cpu_wall field in struct cpu_dbs_info is confusing, because it doesn't represent wall time, but the previous update time as returned by get_cpu_idle_time() (that may be the current value of jiffies_64 in some cases, for example). Moreover, the names of some related variables in dbs_update() take that confusion further. Rename all of those things to make their names reflect the purpose more accurately. While at it, drop unnecessary parens from one of the updated expressions. No functional changes. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Chen Yu <yu.c.chen@intel.com>
2016-04-28clocksource/drivers/tegra: Remove unused suspend/resume codeThierry Reding
The tegra_timer_suspend() and tegra_timer_resume() functions are never used, so they can be removed. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-04-28clockevents/driversi/mps2: add MPS2 Timer driverVladimir Murzin
MPS2 platform has simple 32 bits general purpose countdown timers. The driver uses the first detected timer as a clocksource and the rest of the timers as a clockevent Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-04-28dt-bindings: document the MPS2 timer bindingsVladimir Murzin
This adds documentation of device tree bindings for the timers found on ARM MPS2 platform. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-04-28clocksource/drivers/mtk_timer: Add __init attributeJulia Lawall
Add __init attribute on a function that is only called from other __init functions and that is not inlined, at least with gcc version 4.8.4 on an x86 machine with allyesconfig. Currently, the function is put in the .text.unlikely segment. Declaring it as __init will cause it to be put in the .init.text and to disappear after initialization. The result of objdump -x on the function before the change is as follows: 0000000000000000 l F .text.unlikely 000000000000006f mtk_timer_setup.isra.4 And after the change it is as follows: 0000000000000000 l F .init.text 000000000000006a mtk_timer_setup.isra.4 Done with the help of Coccinelle. The semantic patch checks for local static non-init functions that are called from an __init function and are not called from any other function. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
2016-04-28clockevents/drivers/dw_apb_timer: Implement ->set_state_oneshot_stopped()Jisheng Zhang
The dw_apb_timer only "supports PERIODIC mode and their drivers emulate ONESHOT over that" as described in commit 8fff52fd5093 ("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state"). Inspired by Viresh, I think the dw_apb_timer also needs to implement the set_state_oneshot_stopped() which is called by the clkevt core, when the next event is required at an expiry time of 'KTIME_MAX'. This normally happens with NO_HZ_{IDLE|FULL} in both LOWRES/HIGHRES modes. This patch makes the clockevent device to stop on such an event, to avoid spurious interrupts, as explained by the above commit. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
2016-04-28perf trace: Move msg_flags beautifier to tools/perf/trace/beauty/Arnaldo Carvalho de Melo
To reduce the size of builtin-trace.c. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-11zxg3qitk6bw2x30135k9z4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28perf record: Generate tracking events for process forked by perfWang Nan
With 'perf record --switch-output' without -a, record__synthesize() in record__switch_output() won't generate tracking events because there's no thread_map in evlist. Which causes newly created perf.data doesn't contain map and comm information. This patch creates a fake thread_map and directly call perf_event__synthesize_thread_map() for those events. Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1461178794-40467-8-git-send-email-wangnan0@huawei.com Signed-off-by: He Kuang <hekuang@huawei.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28perf record: Disable buildid cache options by default in switch output modeWang Nan
The cost of buildid cache processing is high: reading all events in output perf.data, opening each elf file to read buildids then copying them into ~/.debug directory. In switch output mode, these heavy works block perf from receiving perf events for too long. Enable no-buildid and no-buildid-cache by default if --switch-output is provided. Still allow user use --no-no-buildid to explicitly enable buildid in this case. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1461178794-40467-6-git-send-email-wangnan0@huawei.com Signed-off-by: He Kuang <hekuang@huawei.com> [ Updated man page ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28perf record: Force enable --timestamp-filename when --switch-output is providedWang Nan
Without this patch, the last output doesn't have timestamp appended if --timestamp-filename is not explicitly provided. For example: # perf record -a --switch-output & [1] 11224 # kill -s SIGUSR2 11224 [ perf record: dump data: Woken up 1 times ] # [ perf record: Dump perf.data.2015122622372823 ] # fg perf record -a --switch-output ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.027 MB perf.data (540 samples) ] # ls -l total 836 -rw------- 1 root root 33256 Dec 26 22:37 perf.data <---- *Odd* -rw------- 1 root root 817156 Dec 26 22:37 perf.data.2015122622372823 Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1461178794-40467-5-git-send-email-wangnan0@huawei.com Signed-off-by: He Kuang <hekuang@huawei.com> [ Updated man page, that also got an entry for --timestamp-filename ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28perf record: Split output into multiple files via '--switch-output'Wang Nan
Allow 'perf record' to split its output into multiple files. For example: # ~/perf record -a --timestamp-filename --switch-output & [1] 10763 # kill -s SIGUSR2 10763 [ perf record: dump data: Woken up 1 times ] # [ perf record: Dump perf.data.2015122622314468 ] # kill -s SIGUSR2 10763 [ perf record: dump data: Woken up 1 times ] # [ perf record: Dump perf.data.2015122622314762 ] # kill -s SIGUSR2 10763 [ perf record: dump data: Woken up 1 times ] #[ perf record: Dump perf.data.2015122622315171 ] # fg perf record -a --timestamp-filename --switch-output ^C[ perf record: Woken up 1 times to write data ] [ perf record: Dump perf.data.2015122622315513 ] [ perf record: Captured and wrote 0.014 MB perf.data.<timestamp> (296 samples) ] # ls -l total 920 -rw------- 1 root root 797692 Dec 26 22:31 perf.data.2015122622314468 -rw------- 1 root root 59960 Dec 26 22:31 perf.data.2015122622314762 -rw------- 1 root root 59912 Dec 26 22:31 perf.data.2015122622315171 -rw------- 1 root root 19220 Dec 26 22:31 perf.data.2015122622315513 Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1461178794-40467-4-git-send-email-wangnan0@huawei.com Signed-off-by: He Kuang <hekuang@huawei.com> [ Added man page entry, used the re-synthesize patch in this series as a fixup ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28perf tools: Derive trigger class from auxtrace_snapshotWang Nan
auxtrace_snapshot_state matches the trigger model. Use trigger to implement it. auxtrace_snapshot_state and auxtrace_snapshot_err are absorbed. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1461178794-40467-3-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28perf tools: Introduce trigger classWang Nan
Use 'trigger' to model operations which need to be executed when an event (a signal, for example) is observed. States and transits: OFF--(on)--> READY --(hit)--> HIT ^ | | (ready) | | \_____________/ is_hit and is_ready are two key functions to query the state of a trigger. is_hit means the event already happen; is_ready means the trigger is waiting for the event. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1461178794-40467-2-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28perf probe: Use strbuf for making stringsMasami Hiramatsu
Replace many fixed-length char array with strbuf to stringify perf_probe_event and probe_trace_event etc. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20160427183713.23446.97377.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28perf evsel: Remove two extraneous ending newlines in open_strerror()Arnaldo Carvalho de Melo
The error messages returned by this method should not have an ending newline, fix the two cases where it was. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-8af0pazzhzl3dluuh8p7ar7p@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28perf evsel: Handle ENOMEM for perf_event_max_stack + PERF_SAMPLE_CALLCHAINArnaldo Carvalho de Melo
When the kernel allows tweaking perf_event_max_stack and the event being setup has PERF_SAMPLE_CALLCHAIN in its perf_event_attr.sample_type, tell the user that tweaking /proc/sys/kernel/perf_event_max_stack may solve the problem. Before: # echo 32000 > /proc/sys/kernel/perf_event_max_stack # perf record -g usleep 1 Error: The sys_perf_event_open() syscall returned with 12 (Cannot allocate memory) for event (cycles:ppp). /bin/dmesg may provide additional information. No CONFIG_PERF_EVENTS=y kernel support configured? # After: # echo 64000 > /proc/sys/kernel/perf_event_max_stack # perf record -g usleep 1 Error: Not enough memory to setup event with callchain. Hint: Try tweaking /proc/sys/kernel/perf_event_max_stack Hint: Current value: 64000 # Suggested-by: David Ahern <dsahern@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-ebv0orelj1s1ye857vhb82ov@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28bpf tools: Fix syscall argumentFlorian Fainelli
Coverity flagged this under CID 1354884 as a sizeof mismatch, it turns out that the argument "attr" passed to syscall should have been a pointer to attr in the first place. Reported-by: coverity (CID 1354884) Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Wang Nan <wangnan0@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Fixes: 8f9e05fb298f ("perf tools: Fix PowerPC native building") Link: http://lkml.kernel.org/r/1461551694-5512-3-git-send-email-f.fainelli@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28bpf tools: Remove expression with no effectFlorian Fainelli
Assigning "attr" to "attr" does not have any effect, but was caught by Coverity, so let's remove this. Reported-by: coverity (CID 1354720) Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Wang Nan <wangnan0@huawei.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Fixes: 1b76c13e4b36 ("bpf tools: Introduce 'bpf' library and add bpf feature check") Link: http://lkml.kernel.org/r/1461551694-5512-2-git-send-email-f.fainelli@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-28gpio: pl061: implement .get_direction()Linus Walleij
Implement this callback so that the driver reports correctly the direction setting of each line. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-28gpio: pl061: remove range checkLinus Walleij
The gpiochip calls are already checking that the GPIO line offsets are in range. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-28arm64: hibernate: Refuse to hibernate if the boot cpu is offlineJames Morse
Hibernation represents a system state save/restore through a system reboot; this implies that the logical cpus carrying out hibernation/thawing must be the same, so that the context saved in the snapshot image on hibernation is consistent with the state of the system on resume. If resume from hibernation is driven through kernel command line parameter, the cpu responsible for thawing the system will be whatever CPU firmware boots the system on upon cold-boot (ie logical cpu 0); this means that in order to keep system context consistent between the hibernate snapshot image and system state on kernel resume from hibernate, logical cpu 0 must be online on hibernation and must be the logical cpu that creates the snapshot image. This patch adds a PM notifier that enforces logical cpu 0 is online when the hibernation is started (and prevents hibernation if it is not), which is sufficient to guarantee it will be the one creating the snapshot image therefore providing the resume cpu a consistent snapshot of the system to resume to. Signed-off-by: James Morse <james.morse@arm.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-28arm64: kernel: Add support for hibernate/suspend-to-diskJames Morse
Add support for hibernate/suspend-to-disk. Suspend borrows code from cpu_suspend() to write cpu state onto the stack, before calling swsusp_save() to save the memory image. Restore creates a set of temporary page tables, covering only the linear map, copies the restore code to a 'safe' page, then uses the copy to restore the memory image. The copied code executes in the lower half of the address space, and once complete, restores the original kernel's page tables. It then calls into cpu_resume(), and follows the normal cpu_suspend() path back into the suspend code. To restore a kernel using KASLR, the address of the page tables, and cpu_resume() are stored in the hibernate arch-header and the el2 vectors are pivotted via the 'safe' page in low memory. Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Kevin Hilman <khilman@baylibre.com> # Tested on Juno R2 Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-28PM / Hibernate: Call flush_icache_range() on pages restored in-placeJames Morse
Some architectures require code written to memory as if it were data to be 'cleaned' from any data caches before the processor can fetch them as new instructions. During resume from hibernate, the snapshot code copies some pages directly, meaning these architectures do not get a chance to perform their cache maintenance. Modify the read and decompress code to call flush_icache_range() on all pages that are restored, so that the restored in-place pages are guaranteed to be executable on these architectures. Signed-off-by: James Morse <james.morse@arm.com> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net> Acked-by: Catalin Marinas <catalin.marinas@arm.com> [will: make clean_pages_on_* static and remove initialisers] Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-04-28arm64: Add new asm macro copy_pageGeoff Levand
Kexec and hibernate need to copy pages of memory, but may not have all of the kernel mapped, and are unable to call copy_page(). Add a simplistic copy_page() macro, that can be inlined in these situations. lib/copy_page.S provides a bigger better version, but uses more registers. Signed-off-by: Geoff Levand <geoff@infradead.org> [Changed asm label to 9998, added commit message] Signed-off-by: James Morse <james.morse@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
generated by cgit (git 2.34.1) at 2025-09-24 01:11:09 +0000