On 03/22/2016 03:33 PM, Moritz Fischer wrote:
Hi all,probably I'm doing this all wrong. I'm playing around with a bunch of accelerators and I need to share buffers between them. I have my heaps implemented as a platform device and from what I understand I'll need a reference to the struct ion_device in each of them. I couldn't find a way to get to that via devicetree, though. I'll admit that hacking up miscdevice is quite hacky, maybe I should add a foo_get_ion_device() to my heap implementing platform device? If someone can explain me how to correctly do that with what we currently have, even better. Cheers, Moritz Moritz Fischer (2): misc: Add of_get_misc get a reference from devicetree staging: android: ion: Add of_ion_device_get function drivers/char/misc.c | 38 ++++++++++++++++++++++++++++++++++++++ drivers/staging/android/ion/ion.c | 10 ++++++++++ include/linux/miscdevice.h | 3 +++ 3 files changed, 51 insertions(+)
In the past what drivers have done is a foo_ion_client_create which has the reference to the ion_device created from ion_device_create. Drivers then call the foo_ion_client_create function. Can you elaborate more on your sharing and allocation flow? This might suggest another idea. Thanks, Laura _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
