[igt-dev] [PATCH i-g-t 3/4] tests/gem_ctx_freq: Disable SLPC efficient freq for the test

[Dixit, Ashutosh]

On Wed, 07 Jun 2023 14:35:01 -0700, Umesh Nerlige Ramappa wrote:
>
> On Mon, Jun 05, 2023 at 06:21:49PM -0700, Ashutosh Dixit wrote:
> > When SLPC efficient freq is enabled, GPU frequencies can be outside the
> > min/max range set from sysfs. Any test which compares actual GPU frequency
> > against set frequencies is therefore meaninful only when SLPC efficient
>
> typo: meaningful
>
> > freq is disabled.
> >
> > Bug: https://gitlab.freedesktop.org/drm/intel/-/issues/6786
> > Signed-off-by: Ashutosh Dixit <ashutosh.dixit at intel.com>
> > ---
> > tests/i915/gem_ctx_freq.c | 15 ++++++++++++++-
> > 1 file changed, 14 insertions(+), 1 deletion(-)
> >
> > diff --git a/tests/i915/gem_ctx_freq.c b/tests/i915/gem_ctx_freq.c
> > index b2f6c2af55e1..6dfcf4187d4b 100644
> > --- a/tests/i915/gem_ctx_freq.c
> > +++ b/tests/i915/gem_ctx_freq.c
> > @@ -131,6 +131,15 @@ static bool get_sysfs_freq(int dirfd, uint32_t *min, uint32_t *max)
> >		igt_sysfs_rps_scanf(dirfd, RPS_MAX_FREQ_MHZ, "%u", max) == 1);
> > }
> >
> > +static void slpc_ignore_efficient_freq(int dirfd, bool val)
> > +{
> > +	if (!(gem_using_guc_submission(i915) && i915_is_slpc_enabled(i915)))
> > +		return;
>
> I think i915_is_slpc_enabled(i915) should be enough here, since
> intel_guc_debugfs_register() in kmd does not create "guc_slpc_info" if guc
> is not enabled.

OK, I can fix this up before merging, let's see what Vinay says. I stole
this check from i915_pm_freq_api.c so it should probably change there too?

Thanks.
--
Ashutosh