RADEON_VM_PTE_COUNT
RADEON_VM_PTE_COUNT * 8);
r = radeon_bo_create(rdev, RADEON_VM_PTE_COUNT * 8,
uint32_t incr = RADEON_VM_PTE_COUNT * 8;
uint64_t mask = RADEON_VM_PTE_COUNT - 1;
nptes = RADEON_VM_PTE_COUNT - (addr & mask);