Daniel Vetter 5b19005c62 drm/i915: check ACTHD of all rings ... commit 097354eb14 upstream. Otherwise hangcheck spuriously fires when running blitter/bsd-only workloads. Contrary to a similar patch by Ben Widawsky this does not check INSTDONE of the other rings. Chris Wilson implied that in a failure to detect a hang, most likely because INSTDONE was fluctuating. Thus only check ACTHD, which as far as I know is rather reliable. Also, blitter and bsd rings can't launch complex tasks from a single instruction (like 3D_PRIM on the render with complex or even infinite shaders). This fixes spurious gpu hang detection when running tests/gem_hangcheck_forcewake on snb/ivb. Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2012-02-13 11:06:09 -08:00
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drm	drm/i915: check ACTHD of all rings	2012-02-13 11:06:09 -08:00
stub	i915: select VIDEO_OUTPUT_CONTROL for ACPI_VIDEO	2011-04-13 09:10:25 +10:00
vga	Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2011-05-24 12:06:40 -07:00
Makefile	gpu: Add Intel GMA500(Poulsbo) Stub Driver	2010-10-26 11:00:13 +10:00