Hi Mihail, On 11.12.2024 16:40, Mihail Atanassov wrote: > Hi Adrián, > > On 11/12/2024 16:34, Adrián Larumbe wrote: > > A previous commit enabled display of driver-internal kernel BO sizes > > through the device file's fdinfo interface. > > > > Expand the description of the relevant driver-specific key:value pairs > > with the definitions of the new drm-*-internal ones. > > > > Signed-off-by: Adrián Larumbe <adrian.larumbe@xxxxxxxxxxxxx> > > --- > > Documentation/gpu/panthor.rst | 14 ++++++++++++++ > > 1 file changed, 14 insertions(+) > > > > diff --git a/Documentation/gpu/panthor.rst b/Documentation/gpu/panthor.rst > > index 3f8979fa2b86..c6d8236e3665 100644 > > --- a/Documentation/gpu/panthor.rst > > +++ b/Documentation/gpu/panthor.rst > > @@ -26,6 +26,10 @@ the currently possible format options: > > drm-cycles-panthor: 94439687187 > > drm-maxfreq-panthor: 1000000000 Hz > > drm-curfreq-panthor: 1000000000 Hz > > + drm-total-internal: 10396 KiB > > + drm-shared-internal: 0 > > You give an example of `drm-shared-internal`... > > > + drm-active-internal: 10396 KiB > > + drm-resident-internal: 10396 KiB > > drm-total-memory: 16480 KiB > > drm-shared-memory: 0 > > drm-active-memory: 16200 KiB > > @@ -44,3 +48,13 @@ driver by writing into the appropriate sysfs node:: > > Where `N` is a bit mask where cycle and timestamp sampling are respectively > > enabled by the first and second bits. > > + > > +Possible `drm-*-internal` key names are: `total`, `active` and `resident`. > > ... but don't list it as a valid key name here. I do mention slightly further below that that key:value pair is at the time being unused, but I've thought of a possible interpretation that could be part of another commit. > > +These values convey the sizes of the internal driver-owned shmem BO's that > > +aren't exposed to user-space through a DRM handle, like queue ring buffers, > > +sync object arrays and heap chunks. Because they are all allocated and pinned > > +at creation time, `drm-resident-internal` and `drm-total-internal` should always > > +be equal. `drm-active-internal` shows the size of kernel BO's associated with > > +VM's and groups currently being scheduled for execution by the GPU. > > +`drm-shared-memory` is unused at present, but in the future it might stand for > > +the size of the Firmware regions, since they do not belong to an open file context. > > -- > Mihail Atanassov <mihail.atanassov@xxxxxxx> Adrian Larumbe
