Lines Matching full:pch
1562 struct dma_pl330_chan *pch; in dma_pl330_rqcb() local
1568 pch = desc->pchan; in dma_pl330_rqcb()
1571 if (!pch) in dma_pl330_rqcb()
1574 spin_lock_irqsave(&pch->lock, flags); in dma_pl330_rqcb()
1578 spin_unlock_irqrestore(&pch->lock, flags); in dma_pl330_rqcb()
1580 tasklet_schedule(&pch->task); in dma_pl330_rqcb()
2045 static inline void fill_queue(struct dma_pl330_chan *pch) in fill_queue() argument
2050 list_for_each_entry(desc, &pch->work_list, node) { in fill_queue()
2056 ret = pl330_submit_req(pch->thread, desc); in fill_queue()
2065 dev_err(pch->dmac->ddma.dev, "%s:%d Bad Desc(%d)\n", in fill_queue()
2067 tasklet_schedule(&pch->task); in fill_queue()
2074 struct dma_pl330_chan *pch = from_tasklet(pch, t, task); in pl330_tasklet() local
2079 spin_lock_irqsave(&pch->lock, flags); in pl330_tasklet()
2082 list_for_each_entry_safe(desc, _dt, &pch->work_list, node) in pl330_tasklet()
2084 if (!pch->cyclic) in pl330_tasklet()
2086 list_move_tail(&desc->node, &pch->completed_list); in pl330_tasklet()
2090 fill_queue(pch); in pl330_tasklet()
2092 if (list_empty(&pch->work_list)) { in pl330_tasklet()
2093 spin_lock(&pch->thread->dmac->lock); in pl330_tasklet()
2094 _stop(pch->thread); in pl330_tasklet()
2095 spin_unlock(&pch->thread->dmac->lock); in pl330_tasklet()
2097 pch->active = false; in pl330_tasklet()
2100 spin_lock(&pch->thread->dmac->lock); in pl330_tasklet()
2101 pl330_start_thread(pch->thread); in pl330_tasklet()
2102 spin_unlock(&pch->thread->dmac->lock); in pl330_tasklet()
2105 while (!list_empty(&pch->completed_list)) { in pl330_tasklet()
2108 desc = list_first_entry(&pch->completed_list, in pl330_tasklet()
2113 if (pch->cyclic) { in pl330_tasklet()
2115 list_move_tail(&desc->node, &pch->work_list); in pl330_tasklet()
2117 pch->active = true; in pl330_tasklet()
2118 spin_lock(&pch->thread->dmac->lock); in pl330_tasklet()
2119 pl330_start_thread(pch->thread); in pl330_tasklet()
2120 spin_unlock(&pch->thread->dmac->lock); in pl330_tasklet()
2125 list_move_tail(&desc->node, &pch->dmac->desc_pool); in pl330_tasklet()
2131 spin_unlock_irqrestore(&pch->lock, flags); in pl330_tasklet()
2133 spin_lock_irqsave(&pch->lock, flags); in pl330_tasklet()
2136 spin_unlock_irqrestore(&pch->lock, flags); in pl330_tasklet()
2140 pm_runtime_mark_last_busy(pch->dmac->ddma.dev); in pl330_tasklet()
2141 pm_runtime_put_autosuspend(pch->dmac->ddma.dev); in pl330_tasklet()
2167 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_alloc_chan_resources() local
2168 struct pl330_dmac *pl330 = pch->dmac; in pl330_alloc_chan_resources()
2174 pch->cyclic = false; in pl330_alloc_chan_resources()
2176 pch->thread = pl330_request_channel(pl330); in pl330_alloc_chan_resources()
2177 if (!pch->thread) { in pl330_alloc_chan_resources()
2182 tasklet_setup(&pch->task, pl330_tasklet); in pl330_alloc_chan_resources()
2208 static void pl330_unprep_slave_fifo(struct dma_pl330_chan *pch) in pl330_unprep_slave_fifo() argument
2210 if (pch->dir != DMA_NONE) in pl330_unprep_slave_fifo()
2211 dma_unmap_resource(pch->chan.device->dev, pch->fifo_dma, in pl330_unprep_slave_fifo()
2212 1 << pch->burst_sz, pch->dir, 0); in pl330_unprep_slave_fifo()
2213 pch->dir = DMA_NONE; in pl330_unprep_slave_fifo()
2217 static bool pl330_prep_slave_fifo(struct dma_pl330_chan *pch, in pl330_prep_slave_fifo() argument
2220 struct device *dev = pch->chan.device->dev; in pl330_prep_slave_fifo()
2224 if (pch->dir == dma_dir) in pl330_prep_slave_fifo()
2227 pl330_unprep_slave_fifo(pch); in pl330_prep_slave_fifo()
2228 pch->fifo_dma = dma_map_resource(dev, pch->fifo_addr, in pl330_prep_slave_fifo()
2229 1 << pch->burst_sz, dma_dir, 0); in pl330_prep_slave_fifo()
2230 if (dma_mapping_error(dev, pch->fifo_dma)) in pl330_prep_slave_fifo()
2233 pch->dir = dma_dir; in pl330_prep_slave_fifo()
2251 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_config_write() local
2253 pl330_unprep_slave_fifo(pch); in pl330_config_write()
2256 pch->fifo_addr = slave_config->dst_addr; in pl330_config_write()
2258 pch->burst_sz = __ffs(slave_config->dst_addr_width); in pl330_config_write()
2259 pch->burst_len = fixup_burst_len(slave_config->dst_maxburst, in pl330_config_write()
2260 pch->dmac->quirks); in pl330_config_write()
2263 pch->fifo_addr = slave_config->src_addr; in pl330_config_write()
2265 pch->burst_sz = __ffs(slave_config->src_addr_width); in pl330_config_write()
2266 pch->burst_len = fixup_burst_len(slave_config->src_maxburst, in pl330_config_write()
2267 pch->dmac->quirks); in pl330_config_write()
2276 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_config() local
2278 memcpy(&pch->slave_config, slave_config, sizeof(*slave_config)); in pl330_config()
2285 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_terminate_all() local
2288 struct pl330_dmac *pl330 = pch->dmac; in pl330_terminate_all()
2292 spin_lock_irqsave(&pch->lock, flags); in pl330_terminate_all()
2295 _stop(pch->thread); in pl330_terminate_all()
2296 pch->thread->req[0].desc = NULL; in pl330_terminate_all()
2297 pch->thread->req[1].desc = NULL; in pl330_terminate_all()
2298 pch->thread->req_running = -1; in pl330_terminate_all()
2301 power_down = pch->active; in pl330_terminate_all()
2302 pch->active = false; in pl330_terminate_all()
2305 list_for_each_entry(desc, &pch->submitted_list, node) { in pl330_terminate_all()
2310 list_for_each_entry(desc, &pch->work_list , node) { in pl330_terminate_all()
2315 list_splice_tail_init(&pch->submitted_list, &pl330->desc_pool); in pl330_terminate_all()
2316 list_splice_tail_init(&pch->work_list, &pl330->desc_pool); in pl330_terminate_all()
2317 list_splice_tail_init(&pch->completed_list, &pl330->desc_pool); in pl330_terminate_all()
2318 spin_unlock_irqrestore(&pch->lock, flags); in pl330_terminate_all()
2336 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_pause() local
2337 struct pl330_dmac *pl330 = pch->dmac; in pl330_pause()
2342 spin_lock_irqsave(&pch->lock, flags); in pl330_pause()
2345 _stop(pch->thread); in pl330_pause()
2348 list_for_each_entry(desc, &pch->work_list, node) { in pl330_pause()
2352 spin_unlock_irqrestore(&pch->lock, flags); in pl330_pause()
2361 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_free_chan_resources() local
2362 struct pl330_dmac *pl330 = pch->dmac; in pl330_free_chan_resources()
2365 tasklet_kill(&pch->task); in pl330_free_chan_resources()
2367 pm_runtime_get_sync(pch->dmac->ddma.dev); in pl330_free_chan_resources()
2370 pl330_release_channel(pch->thread); in pl330_free_chan_resources()
2371 pch->thread = NULL; in pl330_free_chan_resources()
2373 if (pch->cyclic) in pl330_free_chan_resources()
2374 list_splice_tail_init(&pch->work_list, &pch->dmac->desc_pool); in pl330_free_chan_resources()
2377 pm_runtime_mark_last_busy(pch->dmac->ddma.dev); in pl330_free_chan_resources()
2378 pm_runtime_put_autosuspend(pch->dmac->ddma.dev); in pl330_free_chan_resources()
2379 pl330_unprep_slave_fifo(pch); in pl330_free_chan_resources()
2382 static int pl330_get_current_xferred_count(struct dma_pl330_chan *pch, in pl330_get_current_xferred_count() argument
2385 struct pl330_thread *thrd = pch->thread; in pl330_get_current_xferred_count()
2386 struct pl330_dmac *pl330 = pch->dmac; in pl330_get_current_xferred_count()
2399 pm_runtime_mark_last_busy(pch->dmac->ddma.dev); in pl330_get_current_xferred_count()
2416 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_tx_status() local
2427 spin_lock_irqsave(&pch->lock, flags); in pl330_tx_status()
2428 spin_lock(&pch->thread->dmac->lock); in pl330_tx_status()
2430 if (pch->thread->req_running != -1) in pl330_tx_status()
2431 running = pch->thread->req[pch->thread->req_running].desc; in pl330_tx_status()
2433 last_enq = pch->thread->req[pch->thread->lstenq].desc; in pl330_tx_status()
2436 list_for_each_entry(desc, &pch->work_list, node) { in pl330_tx_status()
2441 pl330_get_current_xferred_count(pch, desc); in pl330_tx_status()
2474 spin_unlock(&pch->thread->dmac->lock); in pl330_tx_status()
2475 spin_unlock_irqrestore(&pch->lock, flags); in pl330_tx_status()
2485 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_issue_pending() local
2488 spin_lock_irqsave(&pch->lock, flags); in pl330_issue_pending()
2489 if (list_empty(&pch->work_list)) { in pl330_issue_pending()
2495 WARN_ON(list_empty(&pch->submitted_list)); in pl330_issue_pending()
2496 pch->active = true; in pl330_issue_pending()
2497 pm_runtime_get_sync(pch->dmac->ddma.dev); in pl330_issue_pending()
2499 list_splice_tail_init(&pch->submitted_list, &pch->work_list); in pl330_issue_pending()
2500 spin_unlock_irqrestore(&pch->lock, flags); in pl330_issue_pending()
2502 pl330_tasklet(&pch->task); in pl330_issue_pending()
2513 struct dma_pl330_chan *pch = to_pchan(tx->chan); in pl330_tx_submit() local
2517 spin_lock_irqsave(&pch->lock, flags); in pl330_tx_submit()
2522 if (pch->cyclic) { in pl330_tx_submit()
2530 list_move_tail(&desc->node, &pch->submitted_list); in pl330_tx_submit()
2535 list_add_tail(&last->node, &pch->submitted_list); in pl330_tx_submit()
2536 spin_unlock_irqrestore(&pch->lock, flags); in pl330_tx_submit()
2598 static struct dma_pl330_desc *pl330_get_desc(struct dma_pl330_chan *pch) in pl330_get_desc() argument
2600 struct pl330_dmac *pl330 = pch->dmac; in pl330_get_desc()
2601 u8 *peri_id = pch->chan.private; in pl330_get_desc()
2620 desc->pchan = pch; in pl330_get_desc()
2624 desc->peri = peri_id ? pch->chan.chan_id : 0; in pl330_get_desc()
2625 desc->rqcfg.pcfg = &pch->dmac->pcfg; in pl330_get_desc()
2627 dma_async_tx_descriptor_init(&desc->txd, &pch->chan); in pl330_get_desc()
2641 __pl330_prep_dma_memcpy(struct dma_pl330_chan *pch, dma_addr_t dst, in __pl330_prep_dma_memcpy() argument
2644 struct dma_pl330_desc *desc = pl330_get_desc(pch); in __pl330_prep_dma_memcpy()
2647 dev_err(pch->dmac->ddma.dev, "%s:%d Unable to fetch desc\n", in __pl330_prep_dma_memcpy()
2670 struct dma_pl330_chan *pch = desc->pchan; in get_burst_len() local
2671 struct pl330_dmac *pl330 = pch->dmac; in get_burst_len()
2691 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_prep_dma_cyclic() local
2692 struct pl330_dmac *pl330 = pch->dmac; in pl330_prep_dma_cyclic()
2701 dev_err(pch->dmac->ddma.dev, "%s:%d Invalid dma direction\n", in pl330_prep_dma_cyclic()
2706 pl330_config_write(chan, &pch->slave_config, direction); in pl330_prep_dma_cyclic()
2708 if (!pl330_prep_slave_fifo(pch, direction)) in pl330_prep_dma_cyclic()
2712 desc = pl330_get_desc(pch); in pl330_prep_dma_cyclic()
2716 dev_err(pch->dmac->ddma.dev, "%s:%d Unable to fetch desc\n", in pl330_prep_dma_cyclic()
2742 dst = pch->fifo_dma; in pl330_prep_dma_cyclic()
2747 src = pch->fifo_dma; in pl330_prep_dma_cyclic()
2755 desc->rqcfg.brst_size = pch->burst_sz; in pl330_prep_dma_cyclic()
2756 desc->rqcfg.brst_len = pch->burst_len; in pl330_prep_dma_cyclic()
2771 pch->cyclic = true; in pl330_prep_dma_cyclic()
2781 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_prep_dma_memcpy() local
2785 if (unlikely(!pch || !len)) in pl330_prep_dma_memcpy()
2788 pl330 = pch->dmac; in pl330_prep_dma_memcpy()
2790 desc = __pl330_prep_dma_memcpy(pch, dst, src, len); in pl330_prep_dma_memcpy()
2854 struct dma_pl330_chan *pch = to_pchan(chan); in pl330_prep_slave_sg() local
2858 if (unlikely(!pch || !sgl || !sg_len)) in pl330_prep_slave_sg()
2861 pl330_config_write(chan, &pch->slave_config, direction); in pl330_prep_slave_sg()
2863 if (!pl330_prep_slave_fifo(pch, direction)) in pl330_prep_slave_sg()
2870 desc = pl330_get_desc(pch); in pl330_prep_slave_sg()
2872 struct pl330_dmac *pl330 = pch->dmac; in pl330_prep_slave_sg()
2874 dev_err(pch->dmac->ddma.dev, in pl330_prep_slave_sg()
2890 fill_px(&desc->px, pch->fifo_dma, sg_dma_address(sg), in pl330_prep_slave_sg()
2895 fill_px(&desc->px, sg_dma_address(sg), pch->fifo_dma, in pl330_prep_slave_sg()
2899 desc->rqcfg.brst_size = pch->burst_sz; in pl330_prep_slave_sg()
2900 desc->rqcfg.brst_len = pch->burst_len; in pl330_prep_slave_sg()
2941 struct dma_pl330_chan *pch = &pl330->peripherals[pr]; in pl330_debugfs_show() local
2943 if (!pch->thread || thrd->id != pch->thread->id) in pl330_debugfs_show()
3012 struct dma_pl330_chan *pch, *_p; in pl330_probe() local
3103 pl330->peripherals = kcalloc(num_chan, sizeof(*pch), GFP_KERNEL); in pl330_probe()
3110 pch = &pl330->peripherals[i]; in pl330_probe()
3112 pch->chan.private = adev->dev.of_node; in pl330_probe()
3113 INIT_LIST_HEAD(&pch->submitted_list); in pl330_probe()
3114 INIT_LIST_HEAD(&pch->work_list); in pl330_probe()
3115 INIT_LIST_HEAD(&pch->completed_list); in pl330_probe()
3116 spin_lock_init(&pch->lock); in pl330_probe()
3117 pch->thread = NULL; in pl330_probe()
3118 pch->chan.device = pd; in pl330_probe()
3119 pch->dmac = pl330; in pl330_probe()
3120 pch->dir = DMA_NONE; in pl330_probe()
3123 list_add_tail(&pch->chan.device_node, &pd->channels); in pl330_probe()
3190 list_for_each_entry_safe(pch, _p, &pl330->ddma.channels, in pl330_probe()
3194 list_del(&pch->chan.device_node); in pl330_probe()
3197 if (pch->thread) { in pl330_probe()
3198 pl330_terminate_all(&pch->chan); in pl330_probe()
3199 pl330_free_chan_resources(&pch->chan); in pl330_probe()
3216 struct dma_pl330_chan *pch, *_p; in pl330_remove() local
3233 list_for_each_entry_safe(pch, _p, &pl330->ddma.channels, in pl330_remove()
3237 list_del(&pch->chan.device_node); in pl330_remove()
3240 if (pch->thread) { in pl330_remove()
3241 pl330_terminate_all(&pch->chan); in pl330_remove()
3242 pl330_free_chan_resources(&pch->chan); in pl330_remove()