On 26 Aug 2019, at 19:25, Kevin Laatz wrote: > This patch adds buffer recycling support for unaligned buffers. Since we > don't mask the addr to 2k at umem_reg in unaligned mode, we need to make > sure we give back the correct (original) addr to the fill queue. We achieve > this using the new descriptor format and associated masks. The new format > uses the upper 16-bits for the offset and the lower 48-bits for the addr. > Since we have a field for the offset, we no longer need to modify the > actual address. As such, all we have to do to get back the original address > is mask for the lower 48 bits (i.e. strip the offset and we get the address > on it's own). > > Signed-off-by: Kevin Laatz <kevin.laatz@xxxxxxxxx> > Signed-off-by: Bruce Richardson <bruce.richardson@xxxxxxxxx> Acked-by: Jonathan Lemon <jonathan.lemon@xxxxxxxxx>
