LIMA_VM_PB_SHIFT   27 drivers/gpu/drm/lima/lima_vm.c #define LIMA_VM_BT_MASK ((1 << LIMA_VM_PB_SHIFT) - 1)
LIMA_VM_PB_SHIFT   31 drivers/gpu/drm/lima/lima_vm.c #define LIMA_PBE(va) (va >> LIMA_VM_PB_SHIFT)