06/11/2017 06:38, santosh: > > On Monday 06 November 2017 07:11 AM, Thomas Monjalon wrote: > > The IO virtual addresses may be used instead of physical addresses. > > As IOVA is more generic, it should be used in most places instead > > of physical address wording. > > > > Signed-off-by: Thomas Monjalon <tho...@monjalon.net> > > --- > > +/** > > + * IO virtual address type. > > + * When the physical addressing mode is in use, > > + * the translation from a virtual address to a physical address > > + * is a direct mapping, i.e. the same value. > > + */ > > I guess - that description applicable for iova=va mode > and for iova=pa mode - Need to do explicit virt2phy translation. > I believe you mis-wrote - s/physical addressing mode/virtual addressing mode.
Not sure to understand your comment. Let me reword the description to be less ambiguous: * When the physical addressing mode (IOVA as PA) is in use, * the translation from an IO virtual address (IOVA) to a physical address * is a direct mapping, i.e. the same value. * Otherwise, in virtual mode (IOVA as VA), an IOMMU may do the translation. Is this description correct?
