user/sven/linux.git/include/linux/cpufreq.h, branch v6.6.7

cpufreq: Support per-policy performance boost

2023-08-29T18:51:40Z

The boost control currently applies to the whole system. However, users may prefer to boost a subset of cores in order to provide prioritized performance to workloads running on the boosted cores. Enable per-policy boost by adding a 'boost' sysfs interface under each policy path. This can be found at: /sys/devices/system/cpu/cpufreq/policy<*>/boost Same to the global boost switch, writing 1/0 to the per-policy 'boost' enables/disables boost on a cpufreq policy respectively. The user view of global and per-policy boost controls should be: 1. Enabling global boost initially enables boost on all policies, and per-policy boost can then be enabled or disabled individually, given that the platform does support so. 2. Disabling global boost makes the per-policy boost interface illegal. Signed-off-by: Jie Zhan Reviewed-by: Wei Xu Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki

Merge tag 'cpufreq-arm-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm

2023-08-28T12:12:05Z

Pull ARM cpufreq updates for 6.6 from Viresh Kumar: "- Migrate various platforms to use remove callback returning void (Yangtao Li). - Add online/offline/exit hooks for Tegra driver (Sumit Gupta). - Explicitly include correct DT includes (Rob Herring). - Frequency domain updates for qcom-hw driver (Neil Armstrong). - Modify AMD pstate driver return the highest_perf value (Meng Li). - Generic cleanups for cppc, mediatek and powernow driver (Liao Chang and Konrad Dybcio). - Add more platforms to cpufreq-arm driver's blocklist (AngeloGioacchino Del Regno and Konrad Dybcio). - brcmstb-avs-cpufreq: Fix -Warray-bounds bug (Gustavo A. R. Silva)." * tag 'cpufreq-arm-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (33 commits) cpufreq: tegra194: remove opp table in exit hook cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit() cpufreq: tegra194: add online/offline hooks cpufreq: qcom-cpufreq-hw: add support for 4 freq domains dt-bindings: cpufreq: qcom-hw: add a 4th frequency domain cpufreq: cppc: Set fie_disabled to FIE_DISABLED if fails to create kworker_fie cpufreq: cppc: cppc_cpufreq_get_rate() returns zero in all error cases. cpufreq: Prefer to print cpuid in MIN/MAX QoS register error message cpufreq: amd-pstate-ut: Modify the function to get the highest_perf value cpufreq: mediatek-hw: Remove unused define cpufreq: blocklist more Qualcomm platforms in cpufreq-dt-platdev cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug cpufreq: blocklist MSM8998 in cpufreq-dt-platdev cpufreq: omap: Convert to platform remove callback returning void cpufreq: qoriq: Convert to platform remove callback returning void cpufreq: acpi: Convert to platform remove callback returning void cpufreq: tegra186: Convert to platform remove callback returning void cpufreq: qcom-nvmem: Convert to platform remove callback returning void cpufreq: kirkwood: Convert to platform remove callback returning void cpufreq: pcc-cpufreq: Convert to platform remove callback returning void ...

cpufreq: Use clamp() helper macro to improve the code readability

2023-08-22T20:10:10Z

The valid values of policy.{min, max} should be between 'min' and 'max', so use clamp() helper macro to makes cpufreq_verify_within_limits() easier to follow. Signed-off-by: Liao Chang [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki

cpufreq: cppc: cppc_cpufreq_get_rate() returns zero in all error cases.

2023-08-17T08:42:11Z

The cpufreq framework used to use the zero of return value to reflect the cppc_cpufreq_get_rate() had failed to get current frequecy and treat all positive integer to be succeed. Since cppc_get_perf_ctrs() returns a negative integer in error case, so it is better to convert the value to zero as the return value of cppc_cpufreq_get_rate(). Signed-off-by: Liao Chang Signed-off-by: Viresh Kumar

cpufreq: Fail driver register if it has adjust_perf without fast_switch

2023-06-15T16:15:25Z

If fast_switch_possible flag is set by the scaling driver, the governor is free to select fast_switch function even if adjust_perf is set. Some scaling drivers which use adjust_perf don't set fast_switch thinking that the governor would never fall back to fast_switch. But the governor can fall back to fast_switch even in runtime if frequency invariance is disabled due to some reason. This could crash the kernel if the driver didn't set the fast_switch function pointer. Therefore, fail driver registration if it has adjust_perf without fast_switch. Suggested-by: Rafael J. Wysocki Suggested-by: Viresh Kumar Signed-off-by: Wyes Karny Signed-off-by: Rafael J. Wysocki

Merge tag 'devicetree-for-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2023-04-27T17:09:05Z

Pull more devicetree updates from Rob Herring: - First part of DT header detangling dropping cpu.h from of_device.h and replacing some includes with forward declarations. A handful of drivers needed some adjustment to their includes as a result. - Refactor of_device.h to be used by bus drivers rather than various device drivers. This moves non-bus related functions out of of_device.h. The end goal is for of_platform.h and of_device.h to stop including each other. - Refactor open coded parsing of "ranges" in some bus drivers to use DT address parsing functions - Add some new address parsing functions of_property_read_reg(), of_range_count(), and of_range_to_resource() in preparation to convert more open coded parsing of DT addresses to use them. - Treewide clean-ups to use of_property_read_bool() and of_property_present() as appropriate. The ones here are the ones that didn't get picked up elsewhere. * tag 'devicetree-for-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (34 commits) bus: tegra-gmi: Replace of_platform.h with explicit includes hte: Use of_property_present() for testing DT property presence w1: w1-gpio: Use of_property_read_bool() for boolean properties virt: fsl: Use of_property_present() for testing DT property presence soc: fsl: Use of_property_present() for testing DT property presence sbus: display7seg: Use of_property_read_bool() for boolean properties sparc: Use of_property_read_bool() for boolean properties sparc: Use of_property_present() for testing DT property presence bus: mvebu-mbus: Remove open coded "ranges" parsing of/address: Add of_property_read_reg() helper of/address: Add of_range_count() helper of/address: Add support for 3 address cell bus of/address: Add of_range_to_resource() helper of: unittest: Add bus address range parsing tests of: Drop cpu.h include from of_device.h OPP: Adjust includes to remove of_device.h irqchip: loongson-eiointc: Add explicit include for cpuhotplug.h cpuidle: Adjust includes to remove of_device.h cpufreq: sun50i: Add explicit include for cpu.h cpufreq: Adjust includes to remove of_device.h ...

cpufreq: Adjust includes to remove of_device.h

2023-04-13T22:46:35Z

Now that of_cpu_device_node_get() is defined in of.h, of_device.h is just implicitly including other includes, and is no longer needed. Adjust the include files with what was implicitly included by of_device.h (cpu.h and of.h) and drop including of_device.h. Acked-by: Viresh Kumar Acked-by: Rafael J. Wysocki Link: https://lore.kernel.org/r/20230329-dt-cpu-header-cleanups-v1-14-581e2605fe47@kernel.org Signed-off-by: Rob Herring

cpufreq: drivers with target_index() must set freq_table

2023-04-07T11:21:58Z

Since the cpufreq core directly uses freq_table, for cpufreq drivers that set their target_index() callback, make it mandatory for them to set the same. Since this is set per policy and normally from policy->init(), do this from cpufreq_table_validate_and_sort() which gets called right after ->init(). Reported-by: Yajun Deng Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki

cpufreq: Make cpufreq_unregister_driver() return void

2023-02-09T19:19:18Z

All but a few drivers ignore the return value of cpufreq_unregister_driver(). Those few that don't only call it after cpufreq_register_driver() succeeded, in which case the call doesn't fail. Make the function return no value and add a WARN_ON for the case that the function is called in an invalid situation (i.e. without a previous successful call to cpufreq_register_driver()). Signed-off-by: Uwe Kleine-König Acked-by: Florian Fainelli # brcmstb-avs-cpufreq.c Acked-by: Viresh Kumar Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Rafael J. Wysocki

cpufreq: Generalize of_perf_domain_get_sharing_cpumask phandle format

2022-11-02T05:00:31Z

of_perf_domain_get_sharing_cpumask currently assumes a 1-argument phandle format, and directly returns the argument. Generalize this to return the full of_phandle_args, so it can be used by drivers which use other phandle styles (e.g. separate nodes). This also requires changing the CPU sharing match to compare the full args structure. Also, make sure to of_node_put(args.np) (the original code was leaking a reference). Signed-off-by: Hector Martin Signed-off-by: Viresh Kumar