On 2023/8/3 8:07, 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. Signed-off-by: Jason Gunthorpe<jgg@xxxxxxxxxx> --- arch/powerpc/kernel/iommu.c | 38 +++++++++++++++++-------------------- 1 file changed, 17 insertions(+), 21 deletions(-)
Not sure how to fix the fake blocking domain in this driver. But it's not the purpose of this patch, so Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> Best regards, baolu
