On Fri, 2015-11-20 at 10:57 +, Robin Murphy wrote:
> Whilst blindly assuming the worst case for segment boundaries and
> aligning every segment individually is safe from the point of view
> of respecting the device's parameters, it is also undeniably a waste
> of IOVA space. Futhermore, the
On 27/11/15 15:16, Joerg Roedel wrote:
On Thu, Nov 26, 2015 at 05:36:20PM +, Robin Murphy wrote:
On 26/11/15 15:37, Joerg Roedel wrote:
When the size is bigger than the mask you can either put a WARN on into
and return error (to see if that really happens), or just do multiple
smaller
On Fri, Nov 20, 2015 at 10:57:40AM +, Robin Murphy wrote:
> diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
> index 3a20db4..427fdc1 100644
> --- a/drivers/iommu/dma-iommu.c
> +++ b/drivers/iommu/dma-iommu.c
> @@ -441,6 +441,7 @@ int iommu_dma_map_sg(struct device *dev,
On 26/11/15 15:37, Joerg Roedel wrote:
On Fri, Nov 20, 2015 at 10:57:40AM +, Robin Murphy wrote:
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 3a20db4..427fdc1 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -441,6 +441,7 @@ int
Whilst blindly assuming the worst case for segment boundaries and
aligning every segment individually is safe from the point of view
of respecting the device's parameters, it is also undeniably a waste
of IOVA space. Futhermore, the knock-on effects of more pages than
necessary being exposed to
