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    SubjectRe: [PATCH 4/5] iommu: Add domain window handling functions
    On Mon, Feb 04, 2013 at 12:10:51PM -0600, Stuart Yoder wrote:
    > On Mon, Feb 4, 2013 at 7:18 AM, Joerg Roedel <joro@8bytes.org> wrote:
    > > +static inline int iommu_domain_window_enable(struct iommu_domain *domain,
    > > + u32 wnd_nr, phys_addr_t paddr,
    > > + size_t size)
    > > +{
    > > + return -ENODEV;
    > > +}
    > > +
    > > +static inline void iommu_domain_window_disable(struct iommu_domain *domain,
    > > + u32 wnd_nr)
    > > +{
    > > +}
    > > +
    > > static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
    > > unsigned long iova)
    > > {
    >
    > This API looks workable. The one change we need is that the size argument in
    > the enable API needs to be 64 bits. Our window sizes can exceed 4GB.

    Okay. So if your architecture supports sizes over 2^32 then size_t
    probably is already 64bits, right?


    Joerg




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