reg_global
writel_relaxed(v, &dma->reg_global->emulation_control);
v = readl_relaxed(&dma->reg_global->perf_control);
writel_relaxed(v, &dma->reg_global->perf_control);
writel_relaxed(v, &dma->reg_global->priority_control);
&dma->reg_global->qm_base_address[i]);
dma->reg_global = pktdma_get_regs(dma, node, 0, &size);
if (IS_ERR(dma->reg_global))
return PTR_ERR(dma->reg_global);
if (size < sizeof(struct reg_global)) {
struct reg_global __iomem *reg_global;