On Mon, Jun 17, 2024 at 04:13:41PM +0100, Robin Murphy wrote: > On 23/05/2024 6:52 pm, Rob Clark wrote: > > From: Rob Clark <robdclark@xxxxxxxxxxxx> > > > > Add an io-pgtable method to walk the pgtable returning the raw PTEs that > > would be traversed for a given iova access. > > Have to say I'm a little torn here - with my iommu-dma hat on I'm not super > enthusiastic about adding any more overhead to iova_to_phys, but in terms of > maintaining io-pgtable I do like the overall shape of the implementation... If you mark arm_lpae_pgtable_walk() and the callbacks as __always_inline then the compiler should generate the same code as today for arm_lpae_iova_to_phys(). Jason
