On Tue, Apr 23, 2019 at 09:58:19AM +0800, Lu Baolu wrote: > 554 for (i = 0; i < nslots; i++) > 555 io_tlb_orig_addr[index+i] = orig_addr + (i << > IO_TLB_SHIFT); > > Could the tlb orig address set to PAGE_ALIGN_DOWN(orig_addr)? We > couldn't assume the bounce buffer just starts from the beginning of the > slot. Or anything I missed?
I don't see why we need to align the orig_addr. We only use io_tlb_orig_addr to find the address(es) for the swiotlb_bounce calls, and I don't see a good reason why we'd need to align those.
