On Tue, 23 Oct 2012 12:42:07 +0100 Chris Wilson <chris at chris-wilson.co.uk> wrote: > On Thu, 18 Oct 2012 13:07:18 -0500, Jesse Barnes <jbarnes at virtuousgeek.org> wrote: > > "If ENABLED, PIPE_CONTROL command will flush the in flight data written > > out by render engine to Global Observation point on flush done. Also > > Requires stall bit ([20] of DW1) set." > > That quotation doesn't make sense in the context of TLB invalidation, > and the programming guide here very carefully avoids the mention of > requiring any stall bit set for the post-sync op of TLB invalidation. > > Maybe quote chapter and verse as well? I thought the "Also Requires stall bit ([20] of DW1) set." was pretty clear? -- Jesse Barnes, Intel Open Source Technology Center