Quoting Xiaolin Zhang (2018-10-11 07:14:05) > It is performance optimization to reduce mmio trap numbers from 4 to > 1 durning ELSP porting writing (context submission). > > When context subission, to cache elsp_data[4] values in > the shared page, the last elsp_data[0] port writing will be trapped > to gvt for real context submission. > > Use PVMMIO_ELSP_SUBMIT to control this level of pvmmio optimization. > > v1: rebase > v0: RFC > > Signed-off-by: Xiaolin Zhang <xiaolin.zhang@xxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_vgpu.c | 2 ++ > drivers/gpu/drm/i915/intel_lrc.c | 37 ++++++++++++++++++++++++++++++++++++- Hint: intel_vgpu_submission.c and go wild. You do not need to emulate execlists at all, an async interface along the lines of guc would strangely enough be more akin to what you want. -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
