drm/i915: fixup __iomem mixups in ringbuffer.c
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 26 Apr 2012 21:28:16 +0000 (23:28 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 3 May 2012 09:18:31 +0000 (11:18 +0200)
Two things:
- ring->virtual start is an __iomem pointer, treat it accordingly.
- dev_priv->status_page.page_addr is now always a cpu addr, no pointer
  casting needed for that.

Take the opportunity to remove the unnecessary drm indirection when
setting up the ringbuffer iomapping.

v2: Add a compiler barrier before reading the hw status page.

Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

No differences found