43 static struct dw_edma_burst *dw_edma_alloc_burst(struct dw_edma_chunk *chunk)  in dw_edma_alloc_burst()  argument
52 	if (chunk->burst) {  in dw_edma_alloc_burst()
54 		chunk->bursts_alloc++;  in dw_edma_alloc_burst()
55 		list_add_tail(&burst->list, &chunk->burst->list);  in dw_edma_alloc_burst()
58 		chunk->bursts_alloc = 0;  in dw_edma_alloc_burst()
59 		chunk->burst = burst;  in dw_edma_alloc_burst()
69 	struct dw_edma_chunk *chunk;  in dw_edma_alloc_chunk()  local
71 	chunk = kzalloc(sizeof(*chunk), GFP_NOWAIT);  in dw_edma_alloc_chunk()
72 	if (unlikely(!chunk))  in dw_edma_alloc_chunk()
75 	INIT_LIST_HEAD(&chunk->list);  in dw_edma_alloc_chunk()
76 	chunk->chan = chan;  in dw_edma_alloc_chunk()
83 	chunk->cb = !(desc->chunks_alloc % 2);  in dw_edma_alloc_chunk()
85 		chunk->ll_region.paddr = dw->ll_region_wr[chan->id].paddr;  in dw_edma_alloc_chunk()
86 		chunk->ll_region.vaddr = dw->ll_region_wr[chan->id].vaddr;  in dw_edma_alloc_chunk()
88 		chunk->ll_region.paddr = dw->ll_region_rd[chan->id].paddr;  in dw_edma_alloc_chunk()
89 		chunk->ll_region.vaddr = dw->ll_region_rd[chan->id].vaddr;  in dw_edma_alloc_chunk()
92 	if (desc->chunk) {  in dw_edma_alloc_chunk()
94 		if (!dw_edma_alloc_burst(chunk)) {  in dw_edma_alloc_chunk()
95 			kfree(chunk);  in dw_edma_alloc_chunk()
99 		list_add_tail(&chunk->list, &desc->chunk->list);  in dw_edma_alloc_chunk()
102 		chunk->burst = NULL;  in dw_edma_alloc_chunk()
104 		desc->chunk = chunk;  in dw_edma_alloc_chunk()
107 	return chunk;  in dw_edma_alloc_chunk()
127 static void dw_edma_free_burst(struct dw_edma_chunk *chunk)  in dw_edma_free_burst()  argument
132 	list_for_each_entry_safe(child, _next, &chunk->burst->list, list) {  in dw_edma_free_burst()
135 		chunk->bursts_alloc--;  in dw_edma_free_burst()
140 	chunk->burst = NULL;  in dw_edma_free_burst()
147 	if (!desc->chunk)  in dw_edma_free_chunk()
151 	list_for_each_entry_safe(child, _next, &desc->chunk->list, list) {  in dw_edma_free_chunk()
160 	desc->chunk = NULL;  in dw_edma_free_chunk()
188 	child = list_first_entry_or_null(&desc->chunk->list,  in dw_edma_start_transfer()
339 	struct dw_edma_chunk *chunk;  in dw_edma_device_transfer()  local
384 	chunk = dw_edma_alloc_chunk(desc);  in dw_edma_device_transfer()
385 	if (unlikely(!chunk))  in dw_edma_device_transfer()
412 		if (chunk->bursts_alloc == chan->ll_max) {  in dw_edma_device_transfer()
413 			chunk = dw_edma_alloc_chunk(desc);  in dw_edma_device_transfer()
414 			if (unlikely(!chunk))  in dw_edma_device_transfer()
418 		burst = dw_edma_alloc_burst(chunk);  in dw_edma_device_transfer()
429 		chunk->ll_region.sz += burst->sz;  in dw_edma_device_transfer()