GEN6_PTES
for (pte = 0; pte < GEN6_PTES; pte += 4) {
(pde * GEN6_PTES + pte) * I915_GTT_PAGE_SIZE);
unsigned int pde = first_entry / GEN6_PTES;
unsigned int pte = first_entry % GEN6_PTES;
const unsigned int end = min(pte + num_entries, GEN6_PTES);
unsigned act_pt = first_entry / GEN6_PTES;
unsigned act_pte = first_entry % GEN6_PTES;
if (++act_pte == GEN6_PTES) {
ppgtt->base.vm.total = I915_PDES * GEN6_PTES * I915_GTT_PAGE_SIZE;