On Fri, Apr 27, 2018 at 12:02:02PM +0200, Thierry Reding wrote: > Joerg, I've gone over the git log and header files and I see no mention > of why the TLB flush interface isn't used for mapping. Do you recall any > special reasons why the same shouldn't be applied for mapping? Would you > accept any patches doing this? Yeah, the reason was that we assumed that only emulated IOMMUs ever need flushing in the mapping path, and there is no reason to optimize for that. Especially when a call to iotlb_sync() in the mapping path would hurt most other users. Does the tegra-gart actually need it too? Joerg -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
