Lines Matching refs:pch
1553 struct dma_pl330_chan *pch; in dma_pl330_rqcb() local
1559 pch = desc->pchan; in dma_pl330_rqcb()
1562 if (!pch) in dma_pl330_rqcb()
1565 spin_lock_irqsave(&pch->lock, flags); in dma_pl330_rqcb()
1569 spin_unlock_irqrestore(&pch->lock, flags); in dma_pl330_rqcb()
1571 tasklet_schedule(&pch->task); in dma_pl330_rqcb()
2036 static inline void fill_queue(struct dma_pl330_chan *pch) in fill_queue() argument
2041 list_for_each_entry(desc, &pch->work_list, node) { in fill_queue()
2047 ret = pl330_submit_req(pch->thread, desc); in fill_queue()
2056 dev_err(pch->dmac->ddma.dev, "%s:%d Bad Desc(%d)\n", in fill_queue()
2058 tasklet_schedule(&pch->task); in fill_queue()
2065 struct dma_pl330_chan *pch = from_tasklet(pch, t, task); in pl330_tasklet() local
2070 spin_lock_irqsave(&pch->lock, flags); in pl330_tasklet()
2073 list_for_each_entry_safe(desc, _dt, &pch->work_list, node) in pl330_tasklet()
2075 if (!pch->cyclic) in pl330_tasklet()
2077 list_move_tail(&desc->node, &pch->completed_list); in pl330_tasklet()
2081 fill_queue(pch); in pl330_tasklet()
2083 if (list_empty(&pch->work_list)) { in pl330_tasklet()
2084 spin_lock(&pch->thread->dmac->lock); in pl330_tasklet()
2085 _stop(pch->thread); in pl330_tasklet()
2086 spin_unlock(&pch->thread->dmac->lock); in pl330_tasklet()
2088 pch->active = false; in pl330_tasklet()
2091 spin_lock(&pch->thread->dmac->lock); in pl330_tasklet()
2092 _start(pch->thread); in pl330_tasklet()
2093 spin_unlock(&pch->thread->dmac->lock); in pl330_tasklet()
2096 while (!list_empty(&pch->completed_list)) { in pl330_tasklet()
2099 desc = list_first_entry(&pch->completed_list, in pl330_tasklet()
2104 if (pch->cyclic) { in pl330_tasklet()
2106 list_move_tail(&desc->node, &pch->work_list); in pl330_tasklet()
2108 pch->active = true; in pl330_tasklet()
2109 spin_lock(&pch->thread->dmac->lock); in pl330_tasklet()
2110 _start(pch->thread); in pl330_tasklet()
2111 spin_unlock(&pch->thread->dmac->lock); in pl330_tasklet()
2116 list_move_tail(&desc->node, &pch->dmac->desc_pool); in pl330_tasklet()
2122 spin_unlock_irqrestore(&pch->lock, flags); in pl330_tasklet()
2124 spin_lock_irqsave(&pch->lock, flags); in pl330_tasklet()
2127 spin_unlock_irqrestore(&pch->lock, flags); in pl330_tasklet()
2131 pm_runtime_mark_last_busy(pch->dmac->ddma.dev); in pl330_tasklet()
2132 pm_runtime_put_autosuspend(pch->dmac->ddma.dev); in pl330_tasklet()
2158 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_alloc_chan_resources() local
2159 struct pl330_dmac *pl330 = pch->dmac; in pl330_alloc_chan_resources()
2165 pch->cyclic = false; in pl330_alloc_chan_resources()
2167 pch->thread = pl330_request_channel(pl330); in pl330_alloc_chan_resources()
2168 if (!pch->thread) { in pl330_alloc_chan_resources()
2173 tasklet_setup(&pch->task, pl330_tasklet); in pl330_alloc_chan_resources()
2199 static void pl330_unprep_slave_fifo(struct dma_pl330_chan *pch) in pl330_unprep_slave_fifo() argument
2201 if (pch->dir != DMA_NONE) in pl330_unprep_slave_fifo()
2202 dma_unmap_resource(pch->chan.device->dev, pch->fifo_dma, in pl330_unprep_slave_fifo()
2203 1 << pch->burst_sz, pch->dir, 0); in pl330_unprep_slave_fifo()
2204 pch->dir = DMA_NONE; in pl330_unprep_slave_fifo()
2208 static bool pl330_prep_slave_fifo(struct dma_pl330_chan *pch, in pl330_prep_slave_fifo() argument
2211 struct device *dev = pch->chan.device->dev; in pl330_prep_slave_fifo()
2215 if (pch->dir == dma_dir) in pl330_prep_slave_fifo()
2218 pl330_unprep_slave_fifo(pch); in pl330_prep_slave_fifo()
2219 pch->fifo_dma = dma_map_resource(dev, pch->fifo_addr, in pl330_prep_slave_fifo()
2220 1 << pch->burst_sz, dma_dir, 0); in pl330_prep_slave_fifo()
2221 if (dma_mapping_error(dev, pch->fifo_dma)) in pl330_prep_slave_fifo()
2224 pch->dir = dma_dir; in pl330_prep_slave_fifo()
2242 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_config_write() local
2244 pl330_unprep_slave_fifo(pch); in pl330_config_write()
2247 pch->fifo_addr = slave_config->dst_addr; in pl330_config_write()
2249 pch->burst_sz = __ffs(slave_config->dst_addr_width); in pl330_config_write()
2250 pch->burst_len = fixup_burst_len(slave_config->dst_maxburst, in pl330_config_write()
2251 pch->dmac->quirks); in pl330_config_write()
2254 pch->fifo_addr = slave_config->src_addr; in pl330_config_write()
2256 pch->burst_sz = __ffs(slave_config->src_addr_width); in pl330_config_write()
2257 pch->burst_len = fixup_burst_len(slave_config->src_maxburst, in pl330_config_write()
2258 pch->dmac->quirks); in pl330_config_write()
2267 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_config() local
2269 memcpy(&pch->slave_config, slave_config, sizeof(*slave_config)); in pl330_config()
2276 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_terminate_all() local
2279 struct pl330_dmac *pl330 = pch->dmac; in pl330_terminate_all()
2283 spin_lock_irqsave(&pch->lock, flags); in pl330_terminate_all()
2286 _stop(pch->thread); in pl330_terminate_all()
2287 pch->thread->req[0].desc = NULL; in pl330_terminate_all()
2288 pch->thread->req[1].desc = NULL; in pl330_terminate_all()
2289 pch->thread->req_running = -1; in pl330_terminate_all()
2292 power_down = pch->active; in pl330_terminate_all()
2293 pch->active = false; in pl330_terminate_all()
2296 list_for_each_entry(desc, &pch->submitted_list, node) { in pl330_terminate_all()
2301 list_for_each_entry(desc, &pch->work_list , node) { in pl330_terminate_all()
2306 list_splice_tail_init(&pch->submitted_list, &pl330->desc_pool); in pl330_terminate_all()
2307 list_splice_tail_init(&pch->work_list, &pl330->desc_pool); in pl330_terminate_all()
2308 list_splice_tail_init(&pch->completed_list, &pl330->desc_pool); in pl330_terminate_all()
2309 spin_unlock_irqrestore(&pch->lock, flags); in pl330_terminate_all()
2327 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_pause() local
2328 struct pl330_dmac *pl330 = pch->dmac; in pl330_pause()
2332 spin_lock_irqsave(&pch->lock, flags); in pl330_pause()
2335 _stop(pch->thread); in pl330_pause()
2338 spin_unlock_irqrestore(&pch->lock, flags); in pl330_pause()
2347 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_free_chan_resources() local
2348 struct pl330_dmac *pl330 = pch->dmac; in pl330_free_chan_resources()
2351 tasklet_kill(&pch->task); in pl330_free_chan_resources()
2353 pm_runtime_get_sync(pch->dmac->ddma.dev); in pl330_free_chan_resources()
2356 pl330_release_channel(pch->thread); in pl330_free_chan_resources()
2357 pch->thread = NULL; in pl330_free_chan_resources()
2359 if (pch->cyclic) in pl330_free_chan_resources()
2360 list_splice_tail_init(&pch->work_list, &pch->dmac->desc_pool); in pl330_free_chan_resources()
2363 pm_runtime_mark_last_busy(pch->dmac->ddma.dev); in pl330_free_chan_resources()
2364 pm_runtime_put_autosuspend(pch->dmac->ddma.dev); in pl330_free_chan_resources()
2365 pl330_unprep_slave_fifo(pch); in pl330_free_chan_resources()
2368 static int pl330_get_current_xferred_count(struct dma_pl330_chan *pch, in pl330_get_current_xferred_count() argument
2371 struct pl330_thread *thrd = pch->thread; in pl330_get_current_xferred_count()
2372 struct pl330_dmac *pl330 = pch->dmac; in pl330_get_current_xferred_count()
2385 pm_runtime_mark_last_busy(pch->dmac->ddma.dev); in pl330_get_current_xferred_count()
2402 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_tx_status() local
2413 spin_lock_irqsave(&pch->lock, flags); in pl330_tx_status()
2414 spin_lock(&pch->thread->dmac->lock); in pl330_tx_status()
2416 if (pch->thread->req_running != -1) in pl330_tx_status()
2417 running = pch->thread->req[pch->thread->req_running].desc; in pl330_tx_status()
2419 last_enq = pch->thread->req[pch->thread->lstenq].desc; in pl330_tx_status()
2422 list_for_each_entry(desc, &pch->work_list, node) { in pl330_tx_status()
2427 pl330_get_current_xferred_count(pch, desc); in pl330_tx_status()
2457 spin_unlock(&pch->thread->dmac->lock); in pl330_tx_status()
2458 spin_unlock_irqrestore(&pch->lock, flags); in pl330_tx_status()
2468 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_issue_pending() local
2471 spin_lock_irqsave(&pch->lock, flags); in pl330_issue_pending()
2472 if (list_empty(&pch->work_list)) { in pl330_issue_pending()
2478 WARN_ON(list_empty(&pch->submitted_list)); in pl330_issue_pending()
2479 pch->active = true; in pl330_issue_pending()
2480 pm_runtime_get_sync(pch->dmac->ddma.dev); in pl330_issue_pending()
2482 list_splice_tail_init(&pch->submitted_list, &pch->work_list); in pl330_issue_pending()
2483 spin_unlock_irqrestore(&pch->lock, flags); in pl330_issue_pending()
2485 pl330_tasklet(&pch->task); in pl330_issue_pending()
2496 struct dma_pl330_chan *pch = to_pchan(tx->chan); in pl330_tx_submit() local
2500 spin_lock_irqsave(&pch->lock, flags); in pl330_tx_submit()
2505 if (pch->cyclic) { in pl330_tx_submit()
2513 list_move_tail(&desc->node, &pch->submitted_list); in pl330_tx_submit()
2518 list_add_tail(&last->node, &pch->submitted_list); in pl330_tx_submit()
2519 spin_unlock_irqrestore(&pch->lock, flags); in pl330_tx_submit()
2581 static struct dma_pl330_desc *pl330_get_desc(struct dma_pl330_chan *pch) in pl330_get_desc() argument
2583 struct pl330_dmac *pl330 = pch->dmac; in pl330_get_desc()
2584 u8 *peri_id = pch->chan.private; in pl330_get_desc()
2603 desc->pchan = pch; in pl330_get_desc()
2607 desc->peri = peri_id ? pch->chan.chan_id : 0; in pl330_get_desc()
2608 desc->rqcfg.pcfg = &pch->dmac->pcfg; in pl330_get_desc()
2610 dma_async_tx_descriptor_init(&desc->txd, &pch->chan); in pl330_get_desc()
2624 __pl330_prep_dma_memcpy(struct dma_pl330_chan *pch, dma_addr_t dst, in __pl330_prep_dma_memcpy() argument
2627 struct dma_pl330_desc *desc = pl330_get_desc(pch); in __pl330_prep_dma_memcpy()
2630 dev_err(pch->dmac->ddma.dev, "%s:%d Unable to fetch desc\n", in __pl330_prep_dma_memcpy()
2653 struct dma_pl330_chan *pch = desc->pchan; in get_burst_len() local
2654 struct pl330_dmac *pl330 = pch->dmac; in get_burst_len()
2674 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_prep_dma_cyclic() local
2675 struct pl330_dmac *pl330 = pch->dmac; in pl330_prep_dma_cyclic()
2684 dev_err(pch->dmac->ddma.dev, "%s:%d Invalid dma direction\n", in pl330_prep_dma_cyclic()
2689 pl330_config_write(chan, &pch->slave_config, direction); in pl330_prep_dma_cyclic()
2691 if (!pl330_prep_slave_fifo(pch, direction)) in pl330_prep_dma_cyclic()
2695 desc = pl330_get_desc(pch); in pl330_prep_dma_cyclic()
2699 dev_err(pch->dmac->ddma.dev, "%s:%d Unable to fetch desc\n", in pl330_prep_dma_cyclic()
2725 dst = pch->fifo_dma; in pl330_prep_dma_cyclic()
2730 src = pch->fifo_dma; in pl330_prep_dma_cyclic()
2738 desc->rqcfg.brst_size = pch->burst_sz; in pl330_prep_dma_cyclic()
2739 desc->rqcfg.brst_len = pch->burst_len; in pl330_prep_dma_cyclic()
2754 pch->cyclic = true; in pl330_prep_dma_cyclic()
2764 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_prep_dma_memcpy() local
2768 if (unlikely(!pch || !len)) in pl330_prep_dma_memcpy()
2771 pl330 = pch->dmac; in pl330_prep_dma_memcpy()
2773 desc = __pl330_prep_dma_memcpy(pch, dst, src, len); in pl330_prep_dma_memcpy()
2837 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_prep_slave_sg() local
2841 if (unlikely(!pch || !sgl || !sg_len)) in pl330_prep_slave_sg()
2844 pl330_config_write(chan, &pch->slave_config, direction); in pl330_prep_slave_sg()
2846 if (!pl330_prep_slave_fifo(pch, direction)) in pl330_prep_slave_sg()
2853 desc = pl330_get_desc(pch); in pl330_prep_slave_sg()
2855 struct pl330_dmac *pl330 = pch->dmac; in pl330_prep_slave_sg()
2857 dev_err(pch->dmac->ddma.dev, in pl330_prep_slave_sg()
2873 fill_px(&desc->px, pch->fifo_dma, sg_dma_address(sg), in pl330_prep_slave_sg()
2878 fill_px(&desc->px, sg_dma_address(sg), pch->fifo_dma, in pl330_prep_slave_sg()
2882 desc->rqcfg.brst_size = pch->burst_sz; in pl330_prep_slave_sg()
2883 desc->rqcfg.brst_len = pch->burst_len; in pl330_prep_slave_sg()
2924 struct dma_pl330_chan *pch = &pl330->peripherals[pr]; in pl330_debugfs_show() local
2926 if (!pch->thread || thrd->id != pch->thread->id) in pl330_debugfs_show()
2995 struct dma_pl330_chan *pch, *_p; in pl330_probe() local
3086 pl330->peripherals = kcalloc(num_chan, sizeof(*pch), GFP_KERNEL); in pl330_probe()
3093 pch = &pl330->peripherals[i]; in pl330_probe()
3095 pch->chan.private = adev->dev.of_node; in pl330_probe()
3096 INIT_LIST_HEAD(&pch->submitted_list); in pl330_probe()
3097 INIT_LIST_HEAD(&pch->work_list); in pl330_probe()
3098 INIT_LIST_HEAD(&pch->completed_list); in pl330_probe()
3099 spin_lock_init(&pch->lock); in pl330_probe()
3100 pch->thread = NULL; in pl330_probe()
3101 pch->chan.device = pd; in pl330_probe()
3102 pch->dmac = pl330; in pl330_probe()
3103 pch->dir = DMA_NONE; in pl330_probe()
3106 list_add_tail(&pch->chan.device_node, &pd->channels); in pl330_probe()
3173 list_for_each_entry_safe(pch, _p, &pl330->ddma.channels, in pl330_probe()
3177 list_del(&pch->chan.device_node); in pl330_probe()
3180 if (pch->thread) { in pl330_probe()
3181 pl330_terminate_all(&pch->chan); in pl330_probe()
3182 pl330_free_chan_resources(&pch->chan); in pl330_probe()
3199 struct dma_pl330_chan *pch, *_p; in pl330_remove() local
3216 list_for_each_entry_safe(pch, _p, &pl330->ddma.channels, in pl330_remove()
3220 list_del(&pch->chan.device_node); in pl330_remove()
3223 if (pch->thread) { in pl330_remove()
3224 pl330_terminate_all(&pch->chan); in pl330_remove()
3225 pl330_free_chan_resources(&pch->chan); in pl330_remove()