[PATCH 2/3] drm/i915: WARN if RPS adjustment is more than range

[Sagar Arun Kamble]

Cc: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
---
 drivers/gpu/drm/i915/i915_irq.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index ce5663d..b85bef9 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1195,6 +1195,8 @@ static void gen6_pm_rps_work(struct work_struct *work)
 		adj = 0;
 	}
 
+	WARN_ON(abs(adj) > (max-min));
+
 	dev_priv->rps.last_adj = adj;
 
 	/* sysfs frequency interfaces may have snuck in while servicing the
-- 
1.9.1