nouveau_bo_unmap(bo);
ctx.attr[n].stride = vb->stride;
ctx.attr[n].divisor = ve->instance_divisor;
if (ctx.attr[n].divisor) {
ctx.attr[n].step = i_start % ve->instance_divisor;
nouveau_bo_unmap(bo);
ctx.attr[n].stride = vb->stride;
ctx.attr[n].divisor = ve->instance_divisor;
if (ctx.attr[n].divisor) {
ctx.attr[n].step = i_start % ve->instance_divisor;