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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-10-07 12:31:46 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-10-07 12:31:46 +0200 |
| commit | 53d4d315d4f7f17882ef11db49b06ca6b0be8ff7 (patch) | |
| tree | bd8709a0b5379a74a6f07c92e514511a49a3e60e /Documentation | |
| parent | 05f084d24e098d93c7b0803e32b9be9fff6ef490 (diff) | |
| parent | 7e8f305a081e22ce81aab7f7b9ce01437cbd38b3 (diff) | |
Merge branch 'pm-cpufreq'
Merge cpufreq fixes and cleanups, mostly on top of those fixes, for
6.18-rc1:
- Make cpufreq drivers setting the default CPU transition latency to
CPUFREQ_ETERNAL specify a proper default transition latency value
instead which addresses a regression introduced during the 6.6 cycle
that broke CPUFREQ_ETERNAL handling (Rafael Wysocki)
- Make the cpufreq CPPC driver use a proper transition delay value
when CPUFREQ_ETERNAL is returned by cppc_get_transition_latency() to
indicate an error condition (Rafael Wysocki)
- Make cppc_get_transition_latency() return a negative error code to
indicate error conditions instead of using CPUFREQ_ETERNAL for this
purpose and drop CPUFREQ_ETERNAL that has no other users (Rafael
Wysocki, Gopi Krishna Menon)
- Fix device leak in the mediatek cpufreq driver (Johan Hovold)
- Set target frequency on all CPUs sharing a policy during frequency
updates in the tegra186 cpufreq driver and make it initialize all
cores to max frequencies (Aaron Kling)
- Rust cpufreq helper cleanup (Thorsten Blum)
* pm-cpufreq:
docs/zh_CN: Fix malformed table
docs/zh_TW: Fix malformed table
cpufreq: Drop unused symbol CPUFREQ_ETERNAL
ACPI: CPPC: Do not use CPUFREQ_ETERNAL as an error value
cpufreq: CPPC: Avoid using CPUFREQ_ETERNAL as transition delay
cpufreq: Make drivers using CPUFREQ_ETERNAL specify transition latency
cpufreq: tegra186: Initialize all cores to max frequencies
cpufreq: tegra186: Set target frequency for all cpus in policy
rust: cpufreq: streamline find_supply_names
cpufreq: mediatek: fix device leak on probe failure
Diffstat (limited to 'Documentation')
4 files changed, 3 insertions, 10 deletions
diff --git a/Documentation/admin-guide/pm/cpufreq.rst b/Documentation/admin-guide/pm/cpufreq.rst index cacb9f0307dd..738d7b4dc33a 100644 --- a/Documentation/admin-guide/pm/cpufreq.rst +++ b/Documentation/admin-guide/pm/cpufreq.rst @@ -274,10 +274,6 @@ are the following: The time it takes to switch the CPUs belonging to this policy from one P-state to another, in nanoseconds. - If unknown or if known to be so high that the scaling driver does not - work with the `ondemand`_ governor, -1 (:c:macro:`CPUFREQ_ETERNAL`) - will be returned by reads from this attribute. - ``related_cpus`` List of all (online and offline) CPUs belonging to this policy. diff --git a/Documentation/cpu-freq/cpu-drivers.rst b/Documentation/cpu-freq/cpu-drivers.rst index d84ededb66f9..c5635ac3de54 100644 --- a/Documentation/cpu-freq/cpu-drivers.rst +++ b/Documentation/cpu-freq/cpu-drivers.rst @@ -109,8 +109,7 @@ Then, the driver must fill in the following values: +-----------------------------------+--------------------------------------+ |policy->cpuinfo.transition_latency | the time it takes on this CPU to | | | switch between two frequencies in | -| | nanoseconds (if appropriate, else | -| | specify CPUFREQ_ETERNAL) | +| | nanoseconds | +-----------------------------------+--------------------------------------+ |policy->cur | The current operating frequency of | | | this CPU (if appropriate) | diff --git a/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst b/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst index 2ca92042767b..2d5e84d8e58d 100644 --- a/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst +++ b/Documentation/translations/zh_CN/cpu-freq/cpu-drivers.rst @@ -112,8 +112,7 @@ CPUfreq核心层注册一个cpufreq_driver结构体。 | | | +-----------------------------------+--------------------------------------+ |policy->cpuinfo.transition_latency | CPU在两个频率之间切换所需的时间,以 | -| | 纳秒为单位(如不适用,设定为 | -| | CPUFREQ_ETERNAL) | +| | 纳秒为单位 | | | | +-----------------------------------+--------------------------------------+ |policy->cur | 该CPU当前的工作频率(如适用) | diff --git a/Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst b/Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst index add3de2d4523..7f751a7add56 100644 --- a/Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst +++ b/Documentation/translations/zh_TW/cpu-freq/cpu-drivers.rst @@ -112,8 +112,7 @@ CPUfreq核心層註冊一個cpufreq_driver結構體。 | | | +-----------------------------------+--------------------------------------+ |policy->cpuinfo.transition_latency | CPU在兩個頻率之間切換所需的時間,以 | -| | 納秒爲單位(如不適用,設定爲 | -| | CPUFREQ_ETERNAL) | +| | 納秒爲單位 | | | | +-----------------------------------+--------------------------------------+ |policy->cur | 該CPU當前的工作頻率(如適用) | |
