Quoting Chris Wilson (2018-11-19 00:01:57)
> Quoting Lucas De Marchi (2018-11-17 00:42:34)
> > Like it was done in commit 9e180d9991dc ("drm/i915: Downgrade unknown
> > firmware warnings") for huc and guc: downgrade CSR firmware warnings. If
> > we have released no firmware yet for a platform, stop scaring the
> > consumer and merely note its expected absence.
> >
> > By simply removing the warning and early return we hit the condition
> > with the appropriate message.
> >
> > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
> > Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
> > ---
> > drivers/gpu/drm/i915/intel_csr.c | 3 ---
> > 1 file changed, 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
> > index b4476d891fa3..a516697bf57d 100644
> > --- a/drivers/gpu/drm/i915/intel_csr.c
> > +++ b/drivers/gpu/drm/i915/intel_csr.c
> > @@ -496,9 +496,6 @@ void intel_csr_ucode_init(struct drm_i915_private *dev_priv)
> > csr->fw_path = BXT_CSR_PATH;
> > csr->required_version = BXT_CSR_VERSION_REQUIRED;
> > csr->max_fw_size = BXT_CSR_MAX_FW_SIZE;
> > - } else {
> > - MISSING_CASE(INTEL_REVID(dev_priv));
>
> Wider question would be if MISSING_CASE should be CI only. It's meant to
> be a warning for us to fix before alpha_support=0, and so should never
> reach users or any production system, so the question is moot.
Especially with the changes into CI log level reporting, we'd have to
actually notice the MISSING_CASE triggers from the inflow of other IGT
warn levels.
MISSING_CASE triggering BUG if alpha_support flag is lifted might be
enough of a hammer to drive the point home if we've missed some?
Regards, Joonas
>
> As we have a warning message then the MISSING_CASE is indeed
> superfluous here, and the firmware has a different release schedule to
> alpha_support so doesn't merit the tight coupling implied by
> MISSING_CASE (imo).
>
> Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> -Chris
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