On Wed, Aug 23, 2023 at 01:47:17PM -0300, Jason Gunthorpe wrote: > POWER is using the set_platform_dma_ops() callback to hook up its private > dma_ops, but this is buired under some indirection and is weirdly > happening for a BLOCKED domain as well. > > For better documentation create a PLATFORM domain to manage the dma_ops, > since that is what it is for, and make the BLOCKED domain an alias for > it. BLOCKED is required for VFIO. > > Also removes the leaky allocation of the BLOCKED domain by using a global > static. > > Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> > --- > arch/powerpc/kernel/iommu.c | 38 +++++++++++++++++-------------------- > 1 file changed, 17 insertions(+), 21 deletions(-) > Reviewed-by: Jerry Snitselaar <jsnitsel@xxxxxxxxxx>
