marvell/cesa/tdma.c

51 	writel_relaxed(dreq->chain.first->cur_dma,
62 	for (tdma = dreq->chain.first; tdma;) {
75 	dreq->chain.first = NULL;
76 	dreq->chain.last = NULL;
84 	for (tdma = dreq->chain.first; tdma; tdma = tdma->next) {
99 	if (engine->chain.first == NULL && engine->chain.last == NULL) {
100 		engine->chain.first = dreq->chain.first;
101 		engine->chain.last  = dreq->chain.last;
105 		last = engine->chain.last;
106 		last->next = dreq->chain.first;
107 		engine->chain.last = dreq->chain.last;
110 		 * Break the DMA chain if the CESA_TDMA_BREAK_CHAIN is set on
111 		 * the last element of the current chain, or if the request
116 		    !(dreq->chain.first->flags & CESA_TDMA_SET_STATE))
117 			last->next_dma = cpu_to_le32(dreq->chain.first->cur_dma);
130 	for (tdma = engine->chain.first; tdma; tdma = next) {
152 			engine->chain.first = tdma->next;
155 			/* If this is the last request, clear the chain */
156 			if (engine->chain.first == NULL)
157 				engine->chain.last  = NULL;
192 mv_cesa_dma_add_desc(struct mv_cesa_tdma_chain *chain, gfp_t flags)
203 	if (chain->last) {
204 		chain->last->next_dma = cpu_to_le32(dma_handle);
205 		chain->last->next = new_tdma;
207 		chain->first = new_tdma;
210 	chain->last = new_tdma;
215 int mv_cesa_dma_add_result_op(struct mv_cesa_tdma_chain *chain, dma_addr_t src,
220 	tdma = mv_cesa_dma_add_desc(chain, gfp_flags);
227 	 * req, just pick the first one in the chain.
229 	for (op_desc = chain->first; op_desc; op_desc = op_desc->next) {
249 struct mv_cesa_op_ctx *mv_cesa_dma_add_op(struct mv_cesa_tdma_chain *chain,
259 	tdma = mv_cesa_dma_add_desc(chain, flags);
271 	tdma = chain->last;
281 int mv_cesa_dma_add_data_transfer(struct mv_cesa_tdma_chain *chain,
287 	tdma = mv_cesa_dma_add_desc(chain, gfp_flags);
301 int mv_cesa_dma_add_dummy_launch(struct mv_cesa_tdma_chain *chain, gfp_t flags)
305 	tdma = mv_cesa_dma_add_desc(chain, flags);
309 int mv_cesa_dma_add_dummy_end(struct mv_cesa_tdma_chain *chain, gfp_t flags)
313 	tdma = mv_cesa_dma_add_desc(chain, flags);
322 int mv_cesa_dma_add_op_transfers(struct mv_cesa_tdma_chain *chain,
344 		ret = mv_cesa_dma_add_data_transfer(chain, dst, src, len,