Quoting Xiaolin Zhang (2018-09-27 19:37:48) > 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. > > Signed-off-by: Xiaolin Zhang <xiaolin.zhang@xxxxxxxxx> These changes are somewhat invasive to the ELSP submit path. We should instead look into providing "pvgpu" (just a suggestion for name) flavour of virtual functions which do the para-virtualized talking. We don't want to sprinkle pv code around the driver with ifs. Regards, Joonas _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
