> Getting back to your patch - in your approach cpu cache handling is > missing. I suspect that it worked fine only because it has been > tested on some simple platform without any cpu caches (or with very > small ones). Is missing from the memory allocator because I do it on the device driver. The current operations don't allow me to do that in the memory allocator. > Please check the following thread: > http://www.spinics.net/lists/linux-media/msg51768.html where Tomasz > has posted his ongoing effort on updating and extending videobuf2 and > dma-contig allocator. Especially the patch > http://www.spinics.net/lists/linux-media/msg51776.html will be > interesting for you, because cpu cache synchronization > (dma_sync_single_for_device / dma_sync_single_for_cpu) should be > called from prepare/finish callbacks. You are right, it is interesting because avoid me to use cache sync in my driver. Can I work on these patches? >From this page I understand that these patches are not approved yet https://patchwork.kernel.org/project/linux-media/list/?page=2 -- Federico Vaga -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
