When using bypass window on IODA2, the incorrect DMA operations
dma_iommu_ops is used by devices. The device driver calls
dma_get_required_mask() to determine using 32-bits or 64-bits
bypass DMA window. Unfortunately, the returned DMA mask always
forces the driver to use 32-bits DMA window. The
On Thu, 2014-09-25 at 17:24 +1000, Gavin Shan wrote:
When using bypass window on IODA2, the incorrect DMA operations
dma_iommu_ops is used by devices. The device driver calls
dma_get_required_mask() to determine using 32-bits or 64-bits
bypass DMA window. Unfortunately, the returned DMA mask
On Fri, Sep 26, 2014 at 07:51:56AM +1000, Benjamin Herrenschmidt wrote:
On Thu, 2014-09-25 at 17:24 +1000, Gavin Shan wrote:
When using bypass window on IODA2, the incorrect DMA operations
dma_iommu_ops is used by devices. The device driver calls
dma_get_required_mask() to determine using