On 4 January 2018 at 16:38, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > In some iommu, e.g. swiotlb, the available space can be quite limited. > So we employ a trial-and-error approach to seeing if our large > contiguous chunks can fit, and if that fails we try again with smaller > chunks after trying to free our own lazily allocated blobs. As we use a > trial-and-error approach, we do not want dma_map_sg() to emit a WARN of > its own accord, we want to gracefully report the error back to the caller > instead. > > Note that our noisy culprit, swiotlb, doesn't honour the flag, yet. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> > Cc: Matthew Auld <matthew.auld@xxxxxxxxx> Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx> _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
