Quoting Daniele Ceraolo Spurio (2018-02-09 23:28:04) > From: Thomas Daniel <thomas.daniel@xxxxxxxxx> > > Enhanced Execlists is an upgraded version of execlists which supports > up to 8 ports. The lrcs to be submitted are written to a submit queue > (the ExecLists Submission Queue - ELSQ), which is then loaded on the > HW. When writing to the ELSP register, the lrcs are written cyclically > in the queue from position 0 to position 7. Alternatively, it is > possible to write directly in the individual positions of the queue > using the ELSQC registers. To be able to re-use all the existing code > we're using the latter method and we're currently limiting ourself to > only using 2 elements. > > v2: Rebase. > v3: Switch from !IS_GEN11 to GEN < 11 (Daniele Ceraolo Spurio). > v4: Use the elsq registers instead of elsp. (Daniele Ceraolo Spurio) > v5: Reword commit, rename regs to be closer to specs, turn off > preemption (Daniele), reuse engine->execlists.elsp (Chris) > v6: use has_logical_ring_elsq to differentiate the new paths > v7: add preemption support, rename els to submit_reg (Chris) > v8: save the ctrl register inside the execlists struct, drop CSB > handling updates (superseded by preempt_complete_status) (Chris) > > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> > Signed-off-by: Thomas Daniel <thomas.daniel@xxxxxxxxx> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> > Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx> Reads very nicely, makes it look like a neat little extension. Saving the fun for later ;) Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
