Lines Matching refs:d
130 static void k3_dma_terminate_chan(struct k3_dma_phy *phy, struct k3_dma_dev *d) in k3_dma_terminate_chan() argument
137 writel_relaxed(val, d->base + INT_TC1_RAW); in k3_dma_terminate_chan()
138 writel_relaxed(val, d->base + INT_ERR1_RAW); in k3_dma_terminate_chan()
139 writel_relaxed(val, d->base + INT_ERR2_RAW); in k3_dma_terminate_chan()
152 static u32 k3_dma_get_curr_cnt(struct k3_dma_dev *d, struct k3_dma_phy *phy) in k3_dma_get_curr_cnt() argument
156 cnt = readl_relaxed(d->base + CX_CUR_CNT + phy->idx * 0x10); in k3_dma_get_curr_cnt()
166 static u32 k3_dma_get_chan_stat(struct k3_dma_dev *d) in k3_dma_get_chan_stat() argument
168 return readl_relaxed(d->base + CH_STAT); in k3_dma_get_chan_stat()
171 static void k3_dma_enable_dma(struct k3_dma_dev *d, bool on) in k3_dma_enable_dma() argument
175 writel_relaxed(0x0, d->base + CH_PRI); in k3_dma_enable_dma()
178 writel_relaxed(0xffff, d->base + INT_TC1_MASK); in k3_dma_enable_dma()
179 writel_relaxed(0xffff, d->base + INT_ERR1_MASK); in k3_dma_enable_dma()
180 writel_relaxed(0xffff, d->base + INT_ERR2_MASK); in k3_dma_enable_dma()
183 writel_relaxed(0x0, d->base + INT_TC1_MASK); in k3_dma_enable_dma()
184 writel_relaxed(0x0, d->base + INT_ERR1_MASK); in k3_dma_enable_dma()
185 writel_relaxed(0x0, d->base + INT_ERR2_MASK); in k3_dma_enable_dma()
191 struct k3_dma_dev *d = (struct k3_dma_dev *)dev_id; in k3_dma_int_handler() local
194 u32 stat = readl_relaxed(d->base + INT_STAT); in k3_dma_int_handler()
195 u32 tc1 = readl_relaxed(d->base + INT_TC1); in k3_dma_int_handler()
196 u32 err1 = readl_relaxed(d->base + INT_ERR1); in k3_dma_int_handler()
197 u32 err2 = readl_relaxed(d->base + INT_ERR2); in k3_dma_int_handler()
204 p = &d->phy[i]; in k3_dma_int_handler()
217 dev_warn(d->slave.dev, "DMA ERR\n"); in k3_dma_int_handler()
220 writel_relaxed(irq_chan, d->base + INT_TC1_RAW); in k3_dma_int_handler()
221 writel_relaxed(err1, d->base + INT_ERR1_RAW); in k3_dma_int_handler()
222 writel_relaxed(err2, d->base + INT_ERR2_RAW); in k3_dma_int_handler()
225 tasklet_schedule(&d->task); in k3_dma_int_handler()
233 struct k3_dma_dev *d = to_k3_dma(c->vc.chan.device); in k3_dma_start_txd() local
239 if (BIT(c->phy->idx) & k3_dma_get_chan_stat(d)) in k3_dma_start_txd()
263 struct k3_dma_dev *d = (struct k3_dma_dev *)arg; in k3_dma_tasklet() local
269 list_for_each_entry_safe(c, cn, &d->slave.channels, vc.chan.device_node) { in k3_dma_tasklet()
275 dev_dbg(d->slave.dev, "pchan %u: free\n", p->idx); in k3_dma_tasklet()
285 spin_lock_irq(&d->lock); in k3_dma_tasklet()
286 for (pch = 0; pch < d->dma_channels; pch++) { in k3_dma_tasklet()
287 p = &d->phy[pch]; in k3_dma_tasklet()
289 if (p->vchan == NULL && !list_empty(&d->chan_pending)) { in k3_dma_tasklet()
290 c = list_first_entry(&d->chan_pending, in k3_dma_tasklet()
298 dev_dbg(d->slave.dev, "pchan %u: alloc vchan %p\n", pch, &c->vc); in k3_dma_tasklet()
301 spin_unlock_irq(&d->lock); in k3_dma_tasklet()
303 for (pch = 0; pch < d->dma_channels; pch++) { in k3_dma_tasklet()
305 p = &d->phy[pch]; in k3_dma_tasklet()
319 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_free_chan_resources() local
322 spin_lock_irqsave(&d->lock, flags); in k3_dma_free_chan_resources()
324 spin_unlock_irqrestore(&d->lock, flags); in k3_dma_free_chan_resources()
334 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_tx_status() local
362 bytes = k3_dma_get_curr_cnt(d, p); in k3_dma_tx_status()
380 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_issue_pending() local
386 spin_lock(&d->lock); in k3_dma_issue_pending()
390 list_add_tail(&c->node, &d->chan_pending); in k3_dma_issue_pending()
392 tasklet_schedule(&d->task); in k3_dma_issue_pending()
393 dev_dbg(d->slave.dev, "vchan %p: issued\n", &c->vc); in k3_dma_issue_pending()
396 spin_unlock(&d->lock); in k3_dma_issue_pending()
398 dev_dbg(d->slave.dev, "vchan %p: nothing to issue\n", &c->vc); in k3_dma_issue_pending()
571 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_terminate_all() local
576 dev_dbg(d->slave.dev, "vchan %p: terminate all\n", &c->vc); in k3_dma_terminate_all()
579 spin_lock(&d->lock); in k3_dma_terminate_all()
581 spin_unlock(&d->lock); in k3_dma_terminate_all()
588 k3_dma_terminate_chan(p, d); in k3_dma_terminate_all()
602 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_transfer_pause() local
605 dev_dbg(d->slave.dev, "vchan %p: pause\n", &c->vc); in k3_dma_transfer_pause()
611 spin_lock(&d->lock); in k3_dma_transfer_pause()
613 spin_unlock(&d->lock); in k3_dma_transfer_pause()
623 struct k3_dma_dev *d = to_k3_dma(chan->device); in k3_dma_transfer_resume() local
627 dev_dbg(d->slave.dev, "vchan %p: resume\n", &c->vc); in k3_dma_transfer_resume()
634 spin_lock(&d->lock); in k3_dma_transfer_resume()
635 list_add_tail(&c->node, &d->chan_pending); in k3_dma_transfer_resume()
636 spin_unlock(&d->lock); in k3_dma_transfer_resume()
661 struct k3_dma_dev *d = ofdma->of_dma_data; in k3_of_dma_simple_xlate() local
664 if (request > d->dma_requests) in k3_of_dma_simple_xlate()
667 return dma_get_slave_channel(&(d->chans[request].vc.chan)); in k3_of_dma_simple_xlate()
672 struct k3_dma_dev *d; in k3_dma_probe() local
681 d = devm_kzalloc(&op->dev, sizeof(*d), GFP_KERNEL); in k3_dma_probe()
682 if (!d) in k3_dma_probe()
685 d->base = devm_ioremap_resource(&op->dev, iores); in k3_dma_probe()
686 if (IS_ERR(d->base)) in k3_dma_probe()
687 return PTR_ERR(d->base); in k3_dma_probe()
692 "dma-channels", &d->dma_channels); in k3_dma_probe()
694 "dma-requests", &d->dma_requests); in k3_dma_probe()
697 d->clk = devm_clk_get(&op->dev, NULL); in k3_dma_probe()
698 if (IS_ERR(d->clk)) { in k3_dma_probe()
700 return PTR_ERR(d->clk); in k3_dma_probe()
705 k3_dma_int_handler, 0, DRIVER_NAME, d); in k3_dma_probe()
710 d->phy = devm_kzalloc(&op->dev, in k3_dma_probe()
711 d->dma_channels * sizeof(struct k3_dma_phy), GFP_KERNEL); in k3_dma_probe()
712 if (d->phy == NULL) in k3_dma_probe()
715 for (i = 0; i < d->dma_channels; i++) { in k3_dma_probe()
716 struct k3_dma_phy *p = &d->phy[i]; in k3_dma_probe()
719 p->base = d->base + i * 0x40; in k3_dma_probe()
722 INIT_LIST_HEAD(&d->slave.channels); in k3_dma_probe()
723 dma_cap_set(DMA_SLAVE, d->slave.cap_mask); in k3_dma_probe()
724 dma_cap_set(DMA_MEMCPY, d->slave.cap_mask); in k3_dma_probe()
725 d->slave.dev = &op->dev; in k3_dma_probe()
726 d->slave.device_free_chan_resources = k3_dma_free_chan_resources; in k3_dma_probe()
727 d->slave.device_tx_status = k3_dma_tx_status; in k3_dma_probe()
728 d->slave.device_prep_dma_memcpy = k3_dma_prep_memcpy; in k3_dma_probe()
729 d->slave.device_prep_slave_sg = k3_dma_prep_slave_sg; in k3_dma_probe()
730 d->slave.device_issue_pending = k3_dma_issue_pending; in k3_dma_probe()
731 d->slave.device_config = k3_dma_config; in k3_dma_probe()
732 d->slave.device_pause = k3_dma_transfer_pause; in k3_dma_probe()
733 d->slave.device_resume = k3_dma_transfer_resume; in k3_dma_probe()
734 d->slave.device_terminate_all = k3_dma_terminate_all; in k3_dma_probe()
735 d->slave.copy_align = DMA_ALIGN; in k3_dma_probe()
738 d->chans = devm_kzalloc(&op->dev, in k3_dma_probe()
739 d->dma_requests * sizeof(struct k3_dma_chan), GFP_KERNEL); in k3_dma_probe()
740 if (d->chans == NULL) in k3_dma_probe()
743 for (i = 0; i < d->dma_requests; i++) { in k3_dma_probe()
744 struct k3_dma_chan *c = &d->chans[i]; in k3_dma_probe()
749 vchan_init(&c->vc, &d->slave); in k3_dma_probe()
753 ret = clk_prepare_enable(d->clk); in k3_dma_probe()
759 k3_dma_enable_dma(d, true); in k3_dma_probe()
761 ret = dma_async_device_register(&d->slave); in k3_dma_probe()
766 k3_of_dma_simple_xlate, d); in k3_dma_probe()
770 spin_lock_init(&d->lock); in k3_dma_probe()
771 INIT_LIST_HEAD(&d->chan_pending); in k3_dma_probe()
772 tasklet_init(&d->task, k3_dma_tasklet, (unsigned long)d); in k3_dma_probe()
773 platform_set_drvdata(op, d); in k3_dma_probe()
779 dma_async_device_unregister(&d->slave); in k3_dma_probe()
786 struct k3_dma_dev *d = platform_get_drvdata(op); in k3_dma_remove() local
788 dma_async_device_unregister(&d->slave); in k3_dma_remove()
791 list_for_each_entry_safe(c, cn, &d->slave.channels, vc.chan.device_node) { in k3_dma_remove()
795 tasklet_kill(&d->task); in k3_dma_remove()
796 clk_disable_unprepare(d->clk); in k3_dma_remove()
803 struct k3_dma_dev *d = dev_get_drvdata(dev); in k3_dma_suspend_dev() local
806 stat = k3_dma_get_chan_stat(d); in k3_dma_suspend_dev()
808 dev_warn(d->slave.dev, in k3_dma_suspend_dev()
812 k3_dma_enable_dma(d, false); in k3_dma_suspend_dev()
813 clk_disable_unprepare(d->clk); in k3_dma_suspend_dev()
819 struct k3_dma_dev *d = dev_get_drvdata(dev); in k3_dma_resume_dev() local
822 ret = clk_prepare_enable(d->clk); in k3_dma_resume_dev()
824 dev_err(d->slave.dev, "clk_prepare_enable failed: %d\n", ret); in k3_dma_resume_dev()
827 k3_dma_enable_dma(d, true); in k3_dma_resume_dev()