drm/i915/bdw: Add comment about gen8 HWS PGA
authorBen Widawsky <benjamin.widawsky@intel.com>
Fri, 8 Nov 2013 05:40:50 +0000 (21:40 -0800)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 14 Nov 2013 08:33:11 +0000 (09:33 +0100)
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@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_ringbuffer.c

index b620337..c2f09d4 100644 (file)
@@ -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);
        }