diff mbox series

[3/3] debug prints - DO NOT MERGE

Message ID 20241217160448.199310-6-cassel@kernel.org (mailing list archive)
State Not Applicable
Delegated to: Krzysztof Wilczyński
Headers show
Series [1/3] dmaengine: dw-edma: Add support for DMA_MEMCPY | expand

Commit Message

Niklas Cassel Dec. 17, 2024, 4:04 p.m. UTC 
Signed-off-by: Niklas Cassel <cassel@kernel.org>
---
 drivers/dma/dw-edma/dw-edma-core.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c
index 29cbd947df57..eb69a608d087 100644
--- a/drivers/dma/dw-edma/dw-edma-core.c
+++ b/drivers/dma/dw-edma/dw-edma-core.c
@@ -197,6 +197,7 @@  static int dw_edma_start_transfer(struct dw_edma_chan *chan)
 	if (!desc)
 		return 0;
 
+	trace_printk("start transfer for desc: %px\n", desc);
 	child = list_first_entry_or_null(&desc->chunk->list,
 					 struct dw_edma_chunk, list);
 	if (!child)
@@ -545,6 +546,9 @@  dw_edma_device_transfer(struct dw_edma_transfer *xfer)
 		}
 	}
 
+	if (xfer->type == EDMA_XFER_MEMCPY)
+		trace_printk("DMA_MEMCPY tx_prep desc: %px\n", desc);
+
 	return vchan_tx_prep(&chan->vc, &desc->vd, xfer->flags);
 
 err_alloc:
@@ -653,6 +657,7 @@  static void dw_edma_done_interrupt(struct dw_edma_chan *chan)
 		switch (chan->request) {
 		case EDMA_REQ_NONE:
 			desc = vd2dw_edma_desc(vd);
+			trace_printk("REQ_NONE desc: %px\n", desc);
 			if (!desc->chunks_alloc) {
 				list_del(&vd->node);
 				vchan_cookie_complete(vd);
@@ -664,6 +669,8 @@  static void dw_edma_done_interrupt(struct dw_edma_chan *chan)
 			break;
 
 		case EDMA_REQ_STOP:
+			desc = vd2dw_edma_desc(vd);
+			trace_printk("REQ_STOP desc: %px\n", desc);
 			list_del(&vd->node);
 			vchan_cookie_complete(vd);
 			chan->request = EDMA_REQ_NONE;