From: Frank Li <[email protected]> Reusing ll_region.sz as the transfer size is misleading because ll_region.sz represents the memory size of the EDMA link list, not the amount of data to be transferred.
Add a new xfer_sz field to explicitly indicate the total transfer size of a chunk. Signed-off-by: Frank Li <[email protected]> --- drivers/dma/dw-edma/dw-edma-core.c | 4 ++-- drivers/dma/dw-edma/dw-edma-core.h | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c index 1fec1b52e3d47..53469c8c8b82e 100644 --- a/drivers/dma/dw-edma/dw-edma-core.c +++ b/drivers/dma/dw-edma/dw-edma-core.c @@ -192,7 +192,7 @@ static int dw_edma_start_transfer(struct dw_edma_chan *chan) return 0; dw_edma_core_start(dw, child, !desc->xfer_sz); - desc->xfer_sz += child->ll_region.sz; + desc->xfer_sz += child->xfer_sz; dw_edma_free_burst(child); list_del(&child->list); kfree(child); @@ -527,7 +527,7 @@ dw_edma_device_transfer(struct dw_edma_transfer *xfer, else if (xfer->type == EDMA_XFER_INTERLEAVED) burst->sz = xfer->xfer.il->sgl[i % fsz].size; - chunk->ll_region.sz += burst->sz; + chunk->xfer_sz += burst->sz; desc->alloc_sz += burst->sz; if (dir == DMA_DEV_TO_MEM) { diff --git a/drivers/dma/dw-edma/dw-edma-core.h b/drivers/dma/dw-edma/dw-edma-core.h index 6474cacf71953..db5f45bf048c3 100644 --- a/drivers/dma/dw-edma/dw-edma-core.h +++ b/drivers/dma/dw-edma/dw-edma-core.h @@ -57,6 +57,7 @@ struct dw_edma_chunk { u32 bursts_alloc; u8 cb; + u32 xfer_sz; struct dw_edma_region ll_region; /* Linked list */ }; -- 2.43.0
