[Intel-gfx] [PATCH 2/2] drm/i915: Warn if rps max frequency is not set

[Mika Kuoppala]

Warn on enabling rps when our hw max is invalid.

Cc: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 19e82aaa9863..bc335c52a17a 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -8157,6 +8157,8 @@ static void intel_enable_rps(struct drm_i915_private *dev_priv)
 		intel_init_emon(dev_priv);
 	}
 
+	WARN_ON(rps->max_freq == 0);
+
 	WARN_ON(rps->max_freq < rps->min_freq);
 	WARN_ON(rps->idle_freq > rps->max_freq);
 
-- 
2.14.1