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(parent: 0527fde) | patch
drm/i915/ringbuffer: Exclude last 2 cachlines of ring on 845g
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 9 Apr 2012 12:59:46 +0000 (13:59 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 22 Apr 2012 23:21:22 +0000 (16:21 -0700)
commit6a13f93f4a7228247ba4da5cf7d92e7415a05bc5
tree88127b296a6b7794c29b63408eecf08748d22085tree | snapshot
parent0527fde0639955203ad48a9fd83bd6fc35e82e07commit | diff
drm/i915/ringbuffer: Exclude last 2 cachlines of ring on 845g

commit 27c1cbd06a7620b354cbb363834f3bb8df4f410d upstream.

The 845g shares the errata with i830 whereby executing a command
within 2 cachelines of the end of the ringbuffer may cause a GPU hang.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/i915/intel_ringbuffer.c diff | blob | history
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