drm/i915/selftests: Skip RPS tests on Ironlake (only IPS)

Since Ironlake uses intel_ips.ko for its dynamic frequency adjustment,
we do not have direct control over the frequency management so such
tests are defunct. Similarly, we can't check the gen6+ RPS registers on
Ironlake.

Hopefully this catches all the invalid tests now that Ironlake has
rejoined the dynamic GPU frequency club. There is an opportunity for the
reader to add tests to exercise MEMINTRSTS and co.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201022210814.23004-1-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/gt/selftest_rps.c b/drivers/gpu/drm/i915/gt/selftest_rps.c
index 3540ba9bd459983b3968971aeda1c2cdb79195ac..aa5675ecb5ccc81c4759d417eb817e0d451909c0 100644 (file)
--- a/drivers/gpu/drm/i915/gt/selftest_rps.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rps.c
@@ -219,7 +219,7 @@ int live_rps_clock_interval(void *arg)
        struct igt_spinner spin;
        int err = 0;
 
-       if (!intel_rps_is_enabled(rps))
+       if (!intel_rps_is_enabled(rps) || INTEL_GEN(gt->i915) < 6)
                return 0;
 
        if (igt_spinner_init(&spin, gt))
@@ -1028,7 +1028,7 @@ int live_rps_interrupt(void *arg)
         * First, let's check whether or not we are receiving interrupts.
         */
 
-       if (!intel_rps_has_interrupts(rps))
+       if (!intel_rps_has_interrupts(rps) || INTEL_GEN(gt->i915) < 6)
                return 0;
 
        intel_gt_pm_get(gt);
@@ -1133,7 +1133,7 @@ int live_rps_power(void *arg)
         * that theory.
         */
 
-       if (!intel_rps_is_enabled(rps))
+       if (!intel_rps_is_enabled(rps) || INTEL_GEN(gt->i915) < 6)
                return 0;
 
        if (!librapl_energy_uJ())
@@ -1237,7 +1237,7 @@ int live_rps_dynamic(void *arg)
         * moving parts into dynamic reclocking based on load.
         */
 
-       if (!intel_rps_is_enabled(rps))
+       if (!intel_rps_is_enabled(rps) || INTEL_GEN(gt->i915) < 6)
                return 0;
 
        if (igt_spinner_init(&spin, gt))