Re: [PATCH 2/6] drm: ci: Force db410c to host mode

[Helen Mae Koike Fornazier]

On Friday, August 25, 2023 11:41 -03, Rob Clark <robdclark@xxxxxxxxx> wrote:

> On Fri, Aug 25, 2023 at 7:34 AM Helen Mae Koike Fornazier
> <helen.koike@xxxxxxxxxxxxx> wrote:
> >
> > On Friday, August 25, 2023 11:30 -03, Rob Clark <robdclark@xxxxxxxxx> wrote:
> >
> > > On Fri, Aug 25, 2023 at 6:56 AM Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> wrote:
> > > >
> > > > On Fri, 25 Aug 2023, Vignesh Raman <vignesh.raman@xxxxxxxxxxxxx> wrote:
> > > > > Force db410c to host mode to fix network issue which results in failure
> > > > > to mount root fs via NFS.
> > > > > See https://gitlab.freedesktop.org/gfx-ci/linux/-/commit/cb72a629b8c15c80a54dda510743cefd1c4b65b8
> > > > >
> > > > > Since this fix is not sent upstream, add it to build.sh script
> > > > > before building the kernel and dts. Better approach would be
> > > > > to use devicetree overlays.
> > > > >
> > > > > Signed-off-by: Vignesh Raman <vignesh.raman@xxxxxxxxxxxxx>
> > > > > ---
> > > > >  drivers/gpu/drm/ci/build.sh | 4 ++++
> > > > >  1 file changed, 4 insertions(+)
> > > > >
> > > > > diff --git a/drivers/gpu/drm/ci/build.sh b/drivers/gpu/drm/ci/build.sh
> > > > > index 7b014287a041..c39834bd6bd7 100644
> > > > > --- a/drivers/gpu/drm/ci/build.sh
> > > > > +++ b/drivers/gpu/drm/ci/build.sh
> > > > > @@ -70,6 +70,10 @@ if [ -z "$CI_MERGE_REQUEST_PROJECT_PATH" ]; then
> > > > >      fi
> > > > >  fi
> > > > >
> > > > > +# Force db410c to host mode to fix network issue which results in failure to mount root fs via NFS.
> > > > > +# See https://gitlab.freedesktop.org/gfx-ci/linux/-/commit/cb72a629b8c15c80a54dda510743cefd1c4b65b8
> > > > > +sed -i '/&usb {/,/status = "okay";/s/status = "okay";/&\n\tdr_mode = "host";/' arch/arm64/boot/dts/qcom/apq8016-sbc.dts
> > > > > +
> > > >
> > > > It seems like a really bad idea to me to have the CI build modify the
> > > > source tree before building.
> > > >
> > > > The kernel being built will have a dirty git repo, and the localversion
> > > > will have -dirty in it.
> > > >
> > > > I think it would be better to do out-of-tree builds and assume the
> > > > source is read-only.
> > >
> > > We have the ${target_branch}-external-fixes mechanism to merge
> > > necessary changes before building the kernel for CI.  Which is
> > > necessary for a couple of reasons:
> >
> > Should we create an official topic/drm-ci-external-fixes branch ?
> 
> Hmm, maybe.. I guess as we expand this to more driver trees, and want
> to be able to re-run CI in the drm tree after merges to
> drm-next/drm-fixes, we maybe want to have central
> drm-next-external-fixes and drm-fixes-external-fixes.  I guess we can
> keep those based on drm-next and drm-fixes?  And if there would be
> conflicts because, say, ${driver}-next is behind drm-next, then
> ${driver}-next could be rebased on drm-next?
> 

tbh this is one of the reasons I would prefer in-code fixes instead of
commits on a -external-fixes branch, since it seems things start to become
complex to manage all different trees for people executing ci tests
on different history points, but I don't oppose going for -external-fixes
either.

Regards,
Helen

> BR,
> -R
> 
> > Regards,
> > Helen
> >
> > >
> > > 1) patches like this which aren't appropriate upstream but necessary
> > > due to the CI lab setup
> > > 2) target branch if often based on an early -rc, and it isn't unheard
> > > of to need some fix for some board or another which isn't appropriate
> > > to land via drm-next
> > >
> > > We should use the -external-fixes branch mechanism for patches like this one.
> > >
> > > BR,
> > > -R
> > >
> > > > >  for opt in $ENABLE_KCONFIGS; do
> > > > >    echo CONFIG_$opt=y >> drivers/gpu/drm/ci/${KERNEL_ARCH}.config
> > > > >  done
> > > >
> > > > Ditto for the config changes in the context here. Those are files in
> > > > git, don't change them.
> > > >
> > > > Shouldn't this use something like 'scripts/config --enable' or
> > > > 'scripts/config --disable' on the .config file to be used for building
> > > > instead?
> > > >
> > > >
> > > > BR,
> > > > Jani.
> > > >
> > > >
> > > > --
> > > > Jani Nikula, Intel Open Source Graphics Center
> >