Re: [PATCH v2 2/2] drm/ci: validate drm/msm XML register files against schema

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On Sat, 4 May 2024 at 01:38, Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx> wrote:
>
>
>
> On 5/3/2024 1:20 PM, Dmitry Baryshkov wrote:
> > On Fri, 3 May 2024 at 22:42, Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx> wrote:
> >>
> >>
> >>
> >> On 5/3/2024 11:15 AM, Dmitry Baryshkov wrote:
> >>> In order to validate drm/msm register definition files against schema,
> >>> reuse the nodebugfs build step. The validation entry is guarded by
> >>> the EXPERT Kconfig option and we don't want to enable that option for
> >>> all the builds.
> >>>
> >>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> >>> ---
> >>>    drivers/gpu/drm/ci/build.sh  | 3 +++
> >>>    drivers/gpu/drm/ci/build.yml | 1 +
> >>>    2 files changed, 4 insertions(+)
> >>>
> >>> diff --git a/drivers/gpu/drm/ci/build.sh b/drivers/gpu/drm/ci/build.sh
> >>> index 106f2d40d222..28a495c0c39c 100644
> >>> --- a/drivers/gpu/drm/ci/build.sh
> >>> +++ b/drivers/gpu/drm/ci/build.sh
> >>> @@ -12,6 +12,9 @@ rm -rf .git/rebase-apply
> >>>    apt-get update
> >>>    apt-get install -y libssl-dev
> >>>
> >>> +# for msm header validation
> >>> +apt-get install -y python3-lxml
> >>> +
> >>>    if [[ "$KERNEL_ARCH" = "arm64" ]]; then
> >>>        GCC_ARCH="aarch64-linux-gnu"
> >>>        DEBIAN_ARCH="arm64"
> >>> diff --git a/drivers/gpu/drm/ci/build.yml b/drivers/gpu/drm/ci/build.yml
> >>> index 17ab38304885..9c198239033d 100644
> >>> --- a/drivers/gpu/drm/ci/build.yml
> >>> +++ b/drivers/gpu/drm/ci/build.yml
> >>> @@ -106,6 +106,7 @@ build-nodebugfs:arm64:
> >>>      extends: .build:arm64
> >>>      variables:
> >>>        DISABLE_KCONFIGS: "DEBUG_FS"
> >>> +    ENABLE_KCONFIGS: "EXPERT DRM_MSM_VALIDATE_XML"
> >>>
> >>
> >> Wouldnt this end up enabling DRM_MSM_VALIDATE_XML for any arm64 device.
> >>
> >> Cant we make this build rule msm specific?
> >
> > No need to. We just need to validate the files at least once during
> > the whole pipeline build.
> >
>
> ah okay, today the arm64 config anyway sets all arm64 vendor drm configs
> to y.
>
> A couple of more questions:
>
> 1) Why is this enabled only for no-debugfs option?
> 2) Will there be any concerns from other vendors to enable CONFIG_EXPERT
> in their CI runs as the arm64 config is shared across all arm64 vendors.

I don't get the second question. This option is only enabled for
no-debugfs, which isn't used for execution.

I didn't want to add an extra build stage, just for the sake of
validating regs against the schema, nor did I want EXPERT to find its
way into the actual running kernels.

-- 
With best wishes
Dmitry




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