drm/i915/selftests: Show the pstate limits on any failure to reset min

We want to see the pstate limits whenever we fail to set the minimum
frequency as that may help for debugging.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200420203040.8984-1-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 d7cd673550ef93d1536a95e31df35d8410607470..e0a791eac75230a5ebac2ef59a76132df90526ec 100644 (file)
--- a/drivers/gpu/drm/i915/gt/selftest_rps.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rps.c
@@ -238,6 +238,7 @@ int live_rps_control(void *arg)
                        pr_err("%s: could not set minimum frequency [%x], only %x!\n",
                               engine->name, rps->min_freq, read_cagf(rps));
                        igt_spinner_end(&spin);
+                       show_pstate_limits(rps);
                        err = -EINVAL;
                        break;
                }
@@ -278,6 +279,7 @@ int live_rps_control(void *arg)
                if (limit == rps->min_freq) {
                        pr_err("%s: GPU throttled to minimum!\n",
                               engine->name);
+                       show_pstate_limits(rps);
                        err = -ENODEV;
                        break;
                }