Bug reports are still coming in for late 4.0-rcX that indicate that execlists causes GPU hangs following resume.
Fixes regression from commit d7f621e50704306c348ccb192f17047f1499f9bc Author: Oscar Mateo <[email protected]> Date: Thu Jul 24 17:04:49 2014 +0100 drm/i915/bdw: Enable Logical Ring Contexts (hence, Execlists) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89308 Signed-off-by: Chris Wilson <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Oscar Mateo <[email protected]> Cc: Damien Lespiau <[email protected]> Cc: Nick Hoath <[email protected]> Cc: Tvrtko Ursulin <[email protected]> Cc: Michel Thierry <[email protected]> Cc: Arun Siluvery <[email protected]> Cc: John Harrison <[email protected]> Cc: Thomas Daniel <[email protected]> Cc: [email protected] --- drivers/gpu/drm/i915/intel_lrc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index a3ad95b6ea51..1b289481a9b3 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -232,9 +232,15 @@ int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists if (enable_execlists == 0) return 0; +#if 0 + /* Disable execlists by default for 4.0, since we still have + * issues upon resume in the wild, e.g. + * https://bugs.freedesktop.org/show_bug.cgi?id=89308 + */ if (HAS_LOGICAL_RING_CONTEXTS(dev) && USES_PPGTT(dev) && i915.use_mmio_flip >= 0) return 1; +#endif return 0; } -- 2.1.4 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
