From 2c03c4633b092d695d04bd38053da4d7dc59a9a5 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Wed, 25 Mar 2015 12:21:53 -0600 Subject: dm: core: Support allocating driver-private data for DMA Some driver want to put DMA buffers in their private data. Add a flag to tell driver model to align driver-private data to a cache boundary so that DMA will work correctly in this case. Signed-off-by: Simon Glass Reviewed-by: Marek Vasut --- include/dm/device.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/dm/device.h b/include/dm/device.h index 6980954..f27b34b 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -30,6 +30,9 @@ struct driver_info; /* DM is responsible for allocating and freeing parent_platdata */ #define DM_FLAG_ALLOC_PARENT_PDATA (1 << 3) +/* Allocate driver private data on a DMA boundary */ +#define DM_FLAG_ALLOC_PRIV_DMA (1 << 4) + /** * struct udevice - An instance of a driver * -- cgit v1.1