Lines Matching refs:d
129 static void k3_dma_terminate_chan(struct k3_dma_phy *phy, struct k3_dma_dev *d) in k3_dma_terminate_chan() argument
136 writel_relaxed(val, d->base + INT_TC1_RAW); in k3_dma_terminate_chan()
137 writel_relaxed(val, d->base + INT_ERR1_RAW); in k3_dma_terminate_chan()
138 writel_relaxed(val, d->base + INT_ERR2_RAW); in k3_dma_terminate_chan()
151 static u32 k3_dma_get_curr_cnt(struct k3_dma_dev *d, struct k3_dma_phy *phy) in k3_dma_get_curr_cnt() argument
155 cnt = readl_relaxed(d->base + CX_CUR_CNT + phy->idx * 0x10); in k3_dma_get_curr_cnt()
165 static u32 k3_dma_get_chan_stat(struct k3_dma_dev *d) in k3_dma_get_chan_stat() argument
167 return readl_relaxed(d->base + CH_STAT); in k3_dma_get_chan_stat()
170 static void k3_dma_enable_dma(struct k3_dma_dev *d, bool on) in k3_dma_enable_dma() argument
174 writel_relaxed(0x0, d->base + CH_PRI); in k3_dma_enable_dma()
177 writel_relaxed(0xffff, d->base + INT_TC1_MASK); in k3_dma_enable_dma()
178 writel_relaxed(0xffff, d->base + INT_ERR1_MASK); in k3_dma_enable_dma()
179 writel_relaxed(0xffff, d->base + INT_ERR2_MASK); in k3_dma_enable_dma()
182 writel_relaxed(0x0, d->base + INT_TC1_MASK); in k3_dma_enable_dma()
183 writel_relaxed(0x0, d->base + INT_ERR1_MASK); in k3_dma_enable_dma()
184 writel_relaxed(0x0, d->base + INT_ERR2_MASK); in k3_dma_enable_dma()
190 struct k3_dma_dev *d = (struct k3_dma_dev *)dev_id; in k3_dma_int_handler() local
193 u32 stat = readl_relaxed(d->base + INT_STAT); in k3_dma_int_handler()
194 u32 tc1 = readl_relaxed(d->base + INT_TC1); in k3_dma_int_handler()
195 u32 err1 = readl_relaxed(d->base + INT_ERR1); in k3_dma_int_handler()
196 u32 err2 = readl_relaxed(d->base + INT_ERR2); in k3_dma_int_handler()
203 p = &d->phy[i]; in k3_dma_int_handler()
216 dev_warn(d->slave.dev, "DMA ERR\n"); in k3_dma_int_handler()
219 writel_relaxed(irq_chan, d->base + INT_TC1_RAW); in k3_dma_int_handler()
220 writel_relaxed(err1, d->base + INT_ERR1_RAW); in k3_dma_int_handler()
221 writel_relaxed(err2, d->base + INT_ERR2_RAW); in k3_dma_int_handler()
224 tasklet_schedule(&d->task); in k3_dma_int_handler()
232 struct k3_dma_dev *d = to_k3_dma(c->vc.chan.device); in k3_dma_start_txd() local
238 if (BIT(c->phy->idx) & k3_dma_get_chan_stat(d)) in k3_dma_start_txd()
262 struct k3_dma_dev *d = (struct k3_dma_dev *)arg; in k3_dma_tasklet() local
268 list_for_each_entry_safe(c, cn, &d->slave.channels, vc.chan.device_node) { in k3_dma_tasklet()
274 dev_dbg(d->slave.dev, "pchan %u: free\n", p->idx); in k3_dma_tasklet()
284 spin_lock_irq(&d->lock); in k3_dma_tasklet()
285 for (pch = 0; pch < d->dma_channels; pch++) { in k3_dma_tasklet()
286 p = &d->phy[pch]; in k3_dma_tasklet()
288 if (p->vchan == NULL && !list_empty(&d->chan_pending)) { in k3_dma_tasklet()
289 c = list_first_entry(&d->chan_pending, in k3_dma_tasklet()
297 dev_dbg(d->slave.dev, "pchan %u: alloc vchan %p\n", pch, &c->vc); in k3_dma_tasklet()
300 spin_unlock_irq(&d->lock); in k3_dma_tasklet()
302 for (pch = 0; pch < d->dma_channels; pch++) { in k3_dma_tasklet()
304 p = &d->phy[pch]; in k3_dma_tasklet()
318 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_free_chan_resources() local
321 spin_lock_irqsave(&d->lock, flags); in k3_dma_free_chan_resources()
323 spin_unlock_irqrestore(&d->lock, flags); in k3_dma_free_chan_resources()
333 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_tx_status() local
361 bytes = k3_dma_get_curr_cnt(d, p); in k3_dma_tx_status()
379 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_issue_pending() local
385 spin_lock(&d->lock); in k3_dma_issue_pending()
389 list_add_tail(&c->node, &d->chan_pending); in k3_dma_issue_pending()
391 tasklet_schedule(&d->task); in k3_dma_issue_pending()
392 dev_dbg(d->slave.dev, "vchan %p: issued\n", &c->vc); in k3_dma_issue_pending()
395 spin_unlock(&d->lock); in k3_dma_issue_pending()
397 dev_dbg(d->slave.dev, "vchan %p: nothing to issue\n", &c->vc); in k3_dma_issue_pending()
570 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_terminate_all() local
575 dev_dbg(d->slave.dev, "vchan %p: terminate all\n", &c->vc); in k3_dma_terminate_all()
578 spin_lock(&d->lock); in k3_dma_terminate_all()
580 spin_unlock(&d->lock); in k3_dma_terminate_all()
587 k3_dma_terminate_chan(p, d); in k3_dma_terminate_all()
601 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_transfer_pause() local
604 dev_dbg(d->slave.dev, "vchan %p: pause\n", &c->vc); in k3_dma_transfer_pause()
610 spin_lock(&d->lock); in k3_dma_transfer_pause()
612 spin_unlock(&d->lock); in k3_dma_transfer_pause()
622 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_transfer_resume() local
626 dev_dbg(d->slave.dev, "vchan %p: resume\n", &c->vc); in k3_dma_transfer_resume()
633 spin_lock(&d->lock); in k3_dma_transfer_resume()
634 list_add_tail(&c->node, &d->chan_pending); in k3_dma_transfer_resume()
635 spin_unlock(&d->lock); in k3_dma_transfer_resume()
660 struct k3_dma_dev *d = ofdma->of_dma_data; in k3_of_dma_simple_xlate() local
663 if (request > d->dma_requests) in k3_of_dma_simple_xlate()
666 return dma_get_slave_channel(&(d->chans[request].vc.chan)); in k3_of_dma_simple_xlate()
671 struct k3_dma_dev *d; in k3_dma_probe() local
680 d = devm_kzalloc(&op->dev, sizeof(*d), GFP_KERNEL); in k3_dma_probe()
681 if (!d) in k3_dma_probe()
684 d->base = devm_ioremap_resource(&op->dev, iores); in k3_dma_probe()
685 if (IS_ERR(d->base)) in k3_dma_probe()
686 return PTR_ERR(d->base); in k3_dma_probe()
691 "dma-channels", &d->dma_channels); in k3_dma_probe()
693 "dma-requests", &d->dma_requests); in k3_dma_probe()
696 d->clk = devm_clk_get(&op->dev, NULL); in k3_dma_probe()
697 if (IS_ERR(d->clk)) { in k3_dma_probe()
699 return PTR_ERR(d->clk); in k3_dma_probe()
704 k3_dma_int_handler, 0, DRIVER_NAME, d); in k3_dma_probe()
709 d->phy = devm_kzalloc(&op->dev, in k3_dma_probe()
710 d->dma_channels * sizeof(struct k3_dma_phy), GFP_KERNEL); in k3_dma_probe()
711 if (d->phy == NULL) in k3_dma_probe()
714 for (i = 0; i < d->dma_channels; i++) { in k3_dma_probe()
715 struct k3_dma_phy *p = &d->phy[i]; in k3_dma_probe()
718 p->base = d->base + i * 0x40; in k3_dma_probe()
721 INIT_LIST_HEAD(&d->slave.channels); in k3_dma_probe()
722 dma_cap_set(DMA_SLAVE, d->slave.cap_mask); in k3_dma_probe()
723 dma_cap_set(DMA_MEMCPY, d->slave.cap_mask); in k3_dma_probe()
724 d->slave.dev = &op->dev; in k3_dma_probe()
725 d->slave.device_free_chan_resources = k3_dma_free_chan_resources; in k3_dma_probe()
726 d->slave.device_tx_status = k3_dma_tx_status; in k3_dma_probe()
727 d->slave.device_prep_dma_memcpy = k3_dma_prep_memcpy; in k3_dma_probe()
728 d->slave.device_prep_slave_sg = k3_dma_prep_slave_sg; in k3_dma_probe()
729 d->slave.device_issue_pending = k3_dma_issue_pending; in k3_dma_probe()
730 d->slave.device_config = k3_dma_config; in k3_dma_probe()
731 d->slave.device_pause = k3_dma_transfer_pause; in k3_dma_probe()
732 d->slave.device_resume = k3_dma_transfer_resume; in k3_dma_probe()
733 d->slave.device_terminate_all = k3_dma_terminate_all; in k3_dma_probe()
734 d->slave.copy_align = DMAENGINE_ALIGN_8_BYTES; in k3_dma_probe()
737 d->chans = devm_kzalloc(&op->dev, in k3_dma_probe()
738 d->dma_requests * sizeof(struct k3_dma_chan), GFP_KERNEL); in k3_dma_probe()
739 if (d->chans == NULL) in k3_dma_probe()
742 for (i = 0; i < d->dma_requests; i++) { in k3_dma_probe()
743 struct k3_dma_chan *c = &d->chans[i]; in k3_dma_probe()
748 vchan_init(&c->vc, &d->slave); in k3_dma_probe()
752 ret = clk_prepare_enable(d->clk); in k3_dma_probe()
758 k3_dma_enable_dma(d, true); in k3_dma_probe()
760 ret = dma_async_device_register(&d->slave); in k3_dma_probe()
765 k3_of_dma_simple_xlate, d); in k3_dma_probe()
769 spin_lock_init(&d->lock); in k3_dma_probe()
770 INIT_LIST_HEAD(&d->chan_pending); in k3_dma_probe()
771 tasklet_init(&d->task, k3_dma_tasklet, (unsigned long)d); in k3_dma_probe()
772 platform_set_drvdata(op, d); in k3_dma_probe()
778 dma_async_device_unregister(&d->slave); in k3_dma_probe()
785 struct k3_dma_dev *d = platform_get_drvdata(op); in k3_dma_remove() local
787 dma_async_device_unregister(&d->slave); in k3_dma_remove()
790 list_for_each_entry_safe(c, cn, &d->slave.channels, vc.chan.device_node) { in k3_dma_remove()
794 tasklet_kill(&d->task); in k3_dma_remove()
795 clk_disable_unprepare(d->clk); in k3_dma_remove()
802 struct k3_dma_dev *d = dev_get_drvdata(dev); in k3_dma_suspend_dev() local
805 stat = k3_dma_get_chan_stat(d); in k3_dma_suspend_dev()
807 dev_warn(d->slave.dev, in k3_dma_suspend_dev()
811 k3_dma_enable_dma(d, false); in k3_dma_suspend_dev()
812 clk_disable_unprepare(d->clk); in k3_dma_suspend_dev()
818 struct k3_dma_dev *d = dev_get_drvdata(dev); in k3_dma_resume_dev() local
821 ret = clk_prepare_enable(d->clk); in k3_dma_resume_dev()
823 dev_err(d->slave.dev, "clk_prepare_enable failed: %d\n", ret); in k3_dma_resume_dev()
826 k3_dma_enable_dma(d, true); in k3_dma_resume_dev()