[Intel-gfx] [PATCH 20/21] drm/i915/bdw: Add comment about gen8 HWS PGA

[Ben Widawsky]

This confused me some many times that I think it is appropriate to add a
small comment to instruct the reader of the code that it is indeed doing
what it is supposed to do.

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index b620337..c2f09d45 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -965,6 +965,7 @@ void intel_ring_setup_status_page(struct intel_ring_buffer *ring)
 	} else if (IS_GEN6(ring->dev)) {
 		mmio = RING_HWS_PGA_GEN6(ring->mmio_base);
 	} else {
+		/* XXX: gen8 returns to sanity */
 		mmio = RING_HWS_PGA(ring->mmio_base);
 	}
 
-- 
1.8.4.2