381 		    struct xhci_erst *erst, gfp_t flags)  in dbc_erst_alloc()  argument
383 	erst->entries = dma_alloc_coherent(dev, sizeof(struct xhci_erst_entry),  in dbc_erst_alloc()
384 					   &erst->erst_dma_addr, flags);  in dbc_erst_alloc()
385 	if (!erst->entries)  in dbc_erst_alloc()
388 	erst->num_entries = 1;  in dbc_erst_alloc()
389 	erst->entries[0].seg_addr = cpu_to_le64(evt_ring->first_seg->dma);  in dbc_erst_alloc()
390 	erst->entries[0].seg_size = cpu_to_le32(TRBS_PER_SEGMENT);  in dbc_erst_alloc()
391 	erst->entries[0].rsvd = 0;  in dbc_erst_alloc()
395 static void dbc_erst_free(struct device *dev, struct xhci_erst *erst)  in dbc_erst_free()  argument
397 	if (erst->entries)  in dbc_erst_free()
399 				  erst->entries, erst->erst_dma_addr);  in dbc_erst_free()
400 	erst->entries = NULL;  in dbc_erst_free()
488 	ret = dbc_erst_alloc(dev, dbc->ring_evt, &dbc->erst, flags);  in xhci_dbc_mem_init()
505 	writel(dbc->erst.erst_size, &dbc->regs->ersts);  in xhci_dbc_mem_init()
507 	lo_hi_writeq(dbc->erst.erst_dma_addr, &dbc->regs->erstba);  in xhci_dbc_mem_init()
525 	dbc_erst_free(dev, &dbc->erst);  in xhci_dbc_mem_init()
555 	dbc_erst_free(dbc->dev, &dbc->erst);  in xhci_dbc_mem_cleanup()