From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Wed, 28 May 2014 16:12:13 +0000 (+0300)
Subject: drm/i915: Don't WARN about ring idle bit on gen2
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=de8f0a5016c8a0665ec2a55ed0187bad886c7dab;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

drm/i915: Don't WARN about ring idle bit on gen2

Gen2 doesn't have the ring idle/stop bits in the SCPD/MI_MODE register,
so don't go spewing warnings about the state of those bits.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 3379722d0e6d..279488addf3f 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1494,7 +1494,7 @@ void intel_cleanup_ring_buffer(struct intel_engine_cs *ring)
 		return;
 
 	intel_stop_ring_buffer(ring);
-	WARN_ON((I915_READ_MODE(ring) & MODE_IDLE) == 0);
+	WARN_ON(!IS_GEN2(ring->dev) && (I915_READ_MODE(ring) & MODE_IDLE) == 0);
 
 	iounmap(ringbuf->virtual_start);