[igt-dev] [PATCH 2/2] tests/kms_frontbuffer_tracking: Ignore FBC errors due mode is too large

[Souza, Jose]

Could someone merge it? or give more reviews?

Thanks

On Thu, 2018-04-05 at 06:37 +0100, Lofstedt, Marta wrote:
> Reviewed-by: Marta Lofstedt <marta.lofstedt at intel.com>
> 
> > -----Original Message-----
> > From: igt-dev [mailto:igt-dev-bounces at lists.freedesktop.org] On
> > Behalf Of
> > José Roberto de Souza
> > Sent: Wednesday, April 4, 2018 11:26 PM
> > To: igt-dev at lists.freedesktop.org
> > Subject: [igt-dev] [PATCH 2/2] tests/kms_frontbuffer_tracking:
> > Ignore FBC
> > errors due mode is too large
> > 
> > Depending on the default mode size, some tests will fail because it
> > will
> > exceed the maximum size that hardware tracking can handle, mostly
> > because hardware tracking do not take in care the X and Y offsets,
> > so the
> > plane size + offsets needs be smaller or equal to hardware tracking
> > limmits.
> > 
> > Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105680
> > ---
> >  tests/kms_frontbuffer_tracking.c | 9 +++++++++
> >  1 file changed, 9 insertions(+)
> > 
> > diff --git a/tests/kms_frontbuffer_tracking.c
> > b/tests/kms_frontbuffer_tracking.c
> > index a20e7118..71e985a5 100644
> > --- a/tests/kms_frontbuffer_tracking.c
> > +++ b/tests/kms_frontbuffer_tracking.c
> > @@ -954,6 +954,14 @@ static bool fbc_stride_not_supported(void)
> >  	return strstr(buf, "FBC disabled: framebuffer stride not
> > supported\n");  }
> > 
> > +static bool fbc_mode_too_large(void)
> > +{
> > +	char buf[128];
> > +
> > +	debugfs_read("i915_fbc_status", buf);
> > +	return strstr(buf, "FBC disabled: mode too large for
> > compression\n");
> > +}
> > +
> >  static bool fbc_wait_until_enabled(void)  {
> >  	last_fbc_buf[0] = '\0';
> > @@ -1742,6 +1750,7 @@ static void do_status_assertions(int flags)
> >  	if (flags & ASSERT_FBC_ENABLED) {
> >  		igt_require(!fbc_not_enough_stolen());
> >  		igt_require(!fbc_stride_not_supported());
> > +		igt_require(!fbc_mode_too_large());
> >  		if (!fbc_wait_until_enabled()) {
> > 
> > 	igt_assert_f(fbc_is_enabled(IGT_LOG_WARN),
> >  				     "FBC
> > disabled\n");
> > --
> > 2.16.3
> > 
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