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(parent: 797af97) | 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 22:38:53 +0000 (15:38 -0700)
commit9e4565b215841e6b2596b35a2c0c632a6122f86d
tree69a1976ba9d93c576becbfd585d0348d53299977tree | snapshot
parent797af97b05ee50f8a25432e66f981a3fe11d80f0commit | 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
Linux kernel for KaRo TX COM modules