Hi folks, This RFC patchset achieves two main objectives:
1. Respects cache flags passed from the user space. As no driver nor videobuf2 has (ever?) implemented them, the two flags are replaced by a single one (V4L2_BUF_FLAG_NO_CACHE_SYNC) and the two old flags are deprecated. This is done since a single flag provides the driver with enough information on what to do. (See more info in patch 4.) 2. Allows a driver using videobuf2 dma-contig memory type to choose whether it prefers coherent or non-coherent CPU access to buffer memory for MMAP and USERPTR buffers. This could be later extended to be specified by the user, and per buffer if needed. Only dma-contig memory type is changed but the same could be done to dma-sg as well. I can add it to the set if people are happy with the changes to dma-contig. -- Kind regards, Sakari -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
