On Tue, Aug 23, 2022 at 10:25:27AM -0700, Dongli Zhang wrote: > Adding Robin, Yu and swiotlb list. > > Hi Greg, > > There is an on-going discussion whether to revert this patch, because it breaks > a corner case in MIPS when many kernel CONFIGs are not enabled (related to PCI > and device). As a result, MIPS pre-allocates only PAGE_SIZE buffer as swiotlb. > > https://lore.kernel.org/all/20220820012031.1285979-1-yuzhao@xxxxxxxxxx/ > > However, the core idea of the patch is to panic on purpose if the swiotlb is > configured with <1MB memory, in order to sync with the remap failure handler in > swiotlb_init_remap(). Ok, I've dropped it from the 5.19 queue now. If you want it added to a future kernel release, just resend it. thanks, greg k-h
