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dw_dmac: introduce total_len field in struct dw_desc
By this new field we distinguish a total length of the chain and the individual length of each descriptor in the chain. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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@ -333,18 +333,18 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc,
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if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
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if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE)
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dma_unmap_single(parent, desc->lli.dar,
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desc->len, DMA_FROM_DEVICE);
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desc->total_len, DMA_FROM_DEVICE);
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else
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dma_unmap_page(parent, desc->lli.dar,
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desc->len, DMA_FROM_DEVICE);
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desc->total_len, DMA_FROM_DEVICE);
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}
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if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
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if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE)
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dma_unmap_single(parent, desc->lli.sar,
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desc->len, DMA_TO_DEVICE);
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desc->total_len, DMA_TO_DEVICE);
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else
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dma_unmap_page(parent, desc->lli.sar,
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desc->len, DMA_TO_DEVICE);
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desc->total_len, DMA_TO_DEVICE);
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}
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}
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@ -774,7 +774,7 @@ dwc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
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prev->lli.llp = 0;
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first->txd.flags = flags;
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first->len = len;
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first->total_len = len;
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return &first->txd;
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@ -937,7 +937,7 @@ slave_sg_fromdev_fill_desc:
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prev->lli.ctllo |= DWC_CTLL_INT_EN;
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prev->lli.llp = 0;
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first->len = total_len;
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first->total_len = total_len;
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return &first->txd;
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@ -296,6 +296,7 @@ struct dw_desc {
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struct list_head tx_list;
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struct dma_async_tx_descriptor txd;
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size_t len;
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size_t total_len;
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};
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#define to_dw_desc(h) list_entry(h, struct dw_desc, desc_node)
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