dmaengine: add DMA_COMPL_SKIP_{SRC,DEST}_UNMAP flags to control dma unmap

[linux-2.6-omap-h63xx.git] / include / linux / dmaengine.h

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index ba89b0f5056e260004a41a72a12d9b22bd94bf06..b058d6360383f368925daf965adb191a1316c12d 100644 (file)
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -102,10 +102,14 @@ enum dma_transaction_type {
  * @DMA_CTRL_ACK - the descriptor cannot be reused until the client
  *     acknowledges receipt, i.e. has has a chance to establish any
  *     dependency chains
+ * @DMA_COMPL_SKIP_SRC_UNMAP - set to disable dma-unmapping the source buffer(s)
+ * @DMA_COMPL_SKIP_DEST_UNMAP - set to disable dma-unmapping the destination(s)
  */
 enum dma_ctrl_flags {
        DMA_PREP_INTERRUPT = (1 << 0),
        DMA_CTRL_ACK = (1 << 1),
+       DMA_COMPL_SKIP_SRC_UNMAP = (1 << 2),
+       DMA_COMPL_SKIP_DEST_UNMAP = (1 << 3),
 };
 
 /**