On Thu, Jun 06, 2013 at 11:49:56AM -0300, Rodrigo Vivi wrote: > WaFbcNukeOn3DBlt for IVB, HSW. > > According BSPec: "Workaround: Do not enable Render Command Streamer tracking for FBC. > Instead insert a LRI to address 0x50380 with data 0x00000004 after the PIPE_CONTROL that > follows each render submission." > > v2: Chris noticed that flush_domains check was missing here and also suggested to do > LRI only when fbc is enabled. To avoid do a I915_READ on every flush lets use the > module parameter check. > > v3: Adding Wa name as Damien suggested. > > v4: Ville noticed VLV doesn't support fbc at all and comment came wrong from spec. > > v5: Ville noticed than on blt a Cache Clean LRI should be used instead the Nuke one. > > v6: Check for flush domain on blt (by Ville). > Check for scanout dirty (by Chris). Note quite what I had in mind, see https://patchwork.kernel.org/patch/2606131/ -Chris -- Chris Wilson, Intel Open Source Technology Centre
