From 54e472ae9632992bfbd0c6fd8c8fc5c88d2bdd1f Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 25 Feb 2014 15:13:40 +0200 Subject: [PATCH] drm/i915: Enable interrupt-based AGPBUSY# enable on 85x MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 85x also has a similar AGPBUSY# bit as gen3. Enable it to make sure vblank interrupts don't get dealyed during C3 state. There's also another bit which controls whether AGPBUSY# is asserted based on pending cacheable cycles and interrupts, or just based on pending commands in the ring and interrupts. Select the cacheable cycles mode since that seems to be the new way of doing things in 85x, and it does give slightly better C3 residency numbers with glxgears running. Signed-off-by: Ville Syrjälä Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- Reading git-format-patch failed