[Intel-gfx] [PATCH] drm/i915: Don't WARN about ring idle bit on gen2

[ville.syrjala at linux.intel.com]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

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 at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 3379722..279488a 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);
 
-- 
1.8.5.5