2021-09-06 08:52:37

by Lukasz Luba

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Subject: [PATCH 1/2] PM: EM: fix kernel-doc comments

Fix the kernel-doc comments for the improved Energy Model documentation.

Signed-off-by: Lukasz Luba <[email protected]>
---
include/linux/energy_model.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/energy_model.h b/include/linux/energy_model.h
index 1834752c5617..39dcadd492b5 100644
--- a/include/linux/energy_model.h
+++ b/include/linux/energy_model.h
@@ -11,7 +11,7 @@
#include <linux/types.h>

/**
- * em_perf_state - Performance state of a performance domain
+ * struct em_perf_state - Performance state of a performance domain
* @frequency: The frequency in KHz, for consistency with CPUFreq
* @power: The power consumed at this level (by 1 CPU or by a registered
* device). It can be a total power: static and dynamic.
@@ -25,7 +25,7 @@ struct em_perf_state {
};

/**
- * em_perf_domain - Performance domain
+ * struct em_perf_domain - Performance domain
* @table: List of performance states, in ascending order
* @nr_perf_states: Number of performance states
* @milliwatts: Flag indicating the power values are in milli-Watts
@@ -103,12 +103,12 @@ void em_dev_unregister_perf_domain(struct device *dev);

/**
* em_cpu_energy() - Estimates the energy consumed by the CPUs of a
- performance domain
+ * performance domain
* @pd : performance domain for which energy has to be estimated
* @max_util : highest utilization among CPUs of the domain
* @sum_util : sum of the utilization of all CPUs in the domain
* @allowed_cpu_cap : maximum allowed CPU capacity for the @pd, which
- might reflect reduced frequency (due to thermal)
+ * might reflect reduced frequency (due to thermal)
*
* This function must be used only for CPU devices. There is no validation,
* i.e. if the EM is a CPU type and has cpumask allocated. It is called from
--
2.17.1


2021-09-06 08:53:41

by Lukasz Luba

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Subject: [PATCH 2/2] Documentation: power: include kernel-doc in Energy Model doc

Improve the existing documentation of the Energy Model and add kernel-doc
comments. This extends an API description and helps better understanding
the usage.

Signed-off-by: Lukasz Luba <[email protected]>
---
Documentation/power/energy-model.rst | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/Documentation/power/energy-model.rst b/Documentation/power/energy-model.rst
index 60ac091d3b0d..8a2788afe89b 100644
--- a/Documentation/power/energy-model.rst
+++ b/Documentation/power/energy-model.rst
@@ -101,8 +101,7 @@ subsystems which use EM might rely on this flag to check if all EM devices use
the same scale. If there are different scales, these subsystems might decide
to: return warning/error, stop working or panic.
See Section 3. for an example of driver implementing this
-callback, and kernel/power/energy_model.c for further documentation on this
-API.
+callback, or Section 2.4 for further documentation on this API


2.3 Accessing performance domains
@@ -123,7 +122,17 @@ em_cpu_energy() API. The estimation is performed assuming that the schedutil
CPUfreq governor is in use in case of CPU device. Currently this calculation is
not provided for other type of devices.

-More details about the above APIs can be found in include/linux/energy_model.h.
+More details about the above APIs can be found in ``<linux/energy_model.h>``
+or in Section 2.4
+
+
+2.4 Description details of this API
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. kernel-doc:: include/linux/energy_model.h
+ :internal:
+
+.. kernel-doc:: kernel/power/energy_model.c
+ :export:


3. Example driver
--
2.17.1

2021-09-07 20:06:07

by Rafael J. Wysocki

[permalink] [raw]
Subject: Re: [PATCH 1/2] PM: EM: fix kernel-doc comments

On Mon, Sep 6, 2021 at 10:46 AM Lukasz Luba <[email protected]> wrote:
>
> Fix the kernel-doc comments for the improved Energy Model documentation.
>
> Signed-off-by: Lukasz Luba <[email protected]>
> ---
> include/linux/energy_model.h | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/include/linux/energy_model.h b/include/linux/energy_model.h
> index 1834752c5617..39dcadd492b5 100644
> --- a/include/linux/energy_model.h
> +++ b/include/linux/energy_model.h
> @@ -11,7 +11,7 @@
> #include <linux/types.h>
>
> /**
> - * em_perf_state - Performance state of a performance domain
> + * struct em_perf_state - Performance state of a performance domain
> * @frequency: The frequency in KHz, for consistency with CPUFreq
> * @power: The power consumed at this level (by 1 CPU or by a registered
> * device). It can be a total power: static and dynamic.
> @@ -25,7 +25,7 @@ struct em_perf_state {
> };
>
> /**
> - * em_perf_domain - Performance domain
> + * struct em_perf_domain - Performance domain
> * @table: List of performance states, in ascending order
> * @nr_perf_states: Number of performance states
> * @milliwatts: Flag indicating the power values are in milli-Watts
> @@ -103,12 +103,12 @@ void em_dev_unregister_perf_domain(struct device *dev);
>
> /**
> * em_cpu_energy() - Estimates the energy consumed by the CPUs of a
> - performance domain
> + * performance domain
> * @pd : performance domain for which energy has to be estimated
> * @max_util : highest utilization among CPUs of the domain
> * @sum_util : sum of the utilization of all CPUs in the domain
> * @allowed_cpu_cap : maximum allowed CPU capacity for the @pd, which
> - might reflect reduced frequency (due to thermal)
> + * might reflect reduced frequency (due to thermal)
> *
> * This function must be used only for CPU devices. There is no validation,
> * i.e. if the EM is a CPU type and has cpumask allocated. It is called from
> --

Applied as 5.15-rc material along with the [2/2], thanks!

2021-09-08 07:47:39

by Lukasz Luba

[permalink] [raw]
Subject: Re: [PATCH 1/2] PM: EM: fix kernel-doc comments



On 9/7/21 8:22 PM, Rafael J. Wysocki wrote:
> On Mon, Sep 6, 2021 at 10:46 AM Lukasz Luba <[email protected]> wrote:
>>

>
> Applied as 5.15-rc material along with the [2/2], thanks!
>

Thank you Rafael!

Regards,
Lukasz