Re: [PATCH v2] drm/i915: Add missing docbook chapters for i915 uapi.

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Op 16-07-2021 om 15:07 schreef Tvrtko Ursulin:
>
> On 15/07/2021 13:08, Maarten Lankhorst wrote:
>> I noticed when grepping for DOC: that those were defined
>> in the header, but not actually used. Fix it by removing
>> all chapters and the internal annotation, so the docbook
>> generated chapters are used.
>>
>> Changes since v1:
>> - Just remove the chapters, no need for those.
>>
>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
>> Link: https://patchwork.freedesktop.org/patch/msgid/20210709113842.651140-1-maarten.lankhorst@xxxxxxxxxxxxxxx
>> ---
>>   Documentation/gpu/driver-uapi.rst | 21 ---------------------
>>   1 file changed, 21 deletions(-)
>>
>> diff --git a/Documentation/gpu/driver-uapi.rst b/Documentation/gpu/driver-uapi.rst
>> index 27d0fbe33e87..4411e6919a3d 100644
>> --- a/Documentation/gpu/driver-uapi.rst
>> +++ b/Documentation/gpu/driver-uapi.rst
>> @@ -5,25 +5,4 @@ DRM Driver uAPI
>>   drm/i915 uAPI
>>   =============
>>   -Engine Discovery uAPI
>> ----------------------
>> -
>> -.. kernel-doc:: include/uapi/drm/i915_drm.h
>> -   :doc: Engine Discovery uAPI
>> -
>> -Context Engine Map uAPI
>> ------------------------
>> -
>> -.. kernel-doc:: include/uapi/drm/i915_drm.h
>> -   :doc: Context Engine Map uAPI
>> -
>> -Virtual Engine uAPI
>> --------------------
>> -
>> -.. kernel-doc:: include/uapi/drm/i915_drm.h
>> -   :doc: Virtual Engine uAPI
>> -
>
> Hmm my idea was to have the above three laid out sequentially in the doc so the narrative makes sense. Otherwise they are at random locations in i915_drm.h so reader cannot get the nice story around high level operation and interactions between then. Initially I had this narrative right in this file but Daniel wanted it moved into i915_drm.h.
>
> I didn't really understand the commit message to understand what wasn't right?

Some chapters went missing, and instead of defining the same chapters in multiple places, I felt we could just revert the change and get it right.

include/uapi/drm/i915_drm.h: * DOC: uevents generated by i915 on it's device node
include/uapi/drm/i915_drm.h: * DOC: perf_events exposed by i915 through /sys/bus/event_sources/drivers/i915
include/uapi/drm/i915_drm.h: * DOC: Virtual Engine uAPI
include/uapi/drm/i915_drm.h: * DOC: Context Engine Map uAPI
include/uapi/drm/i915_drm.h: * DOC: Engine Discovery uAPI

You added the last 3, but forgot the first 2. Since removing worked, I felt we could just leave it at that. :)

No need to define twice.

>> -i915_drm.h
>> -----------
>>   .. kernel-doc:: include/uapi/drm/i915_drm.h
>> -   :internal:
>
> This one I added to avoid duplicate sections. It won't be a problem if they are not referenced from driver-uapi.rst though. 

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