On Mon, Aug 16, 2021 at 03:47:58PM +0800, Leizhen (ThunderTown) wrote: > > > On 2021/8/16 15:24, John Garry wrote: > >> In addition, I find that function arm_smmu_cmdq_build_cmd() can also be > >> optimized > >> slightly, three useless instructions can be reduced. > > > > I think that you could optimise further by pre-building commonly used > > commands. > > > > For example, CMD_SYNC without MSI polling is always the same. And then only > > different in 1 field for MSI polling. > > > > But you need to check if the performance gain is worth the change. > > Good advice. I can give it a try.
Please send it as a new patch on top. I've queued the old one and sent it to Joerg. Since this is just further cleanup, it can be done separately. Will _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
