On Thu, Sep 28, 2017 at 11:41 PM, Pintu Kumar <pintu.p...@gmail.com> wrote: > On Wed, Sep 27, 2017 at 7:54 PM, Pintu Kumar <pintu.p...@gmail.com> wrote: >> On Wed, Sep 27, 2017 at 12:52 AM, Laura Abbott <labb...@redhat.com> wrote: >>> On 09/26/2017 11:08 AM, Pintu Agarwal wrote: >>>> >>>> This is a test utility to verify ION buffer sharing in user space >>>> between 2 independent processes. >>>> It uses unix domain socket as IPC to transfer an FD to another process >>>> and install it. >>>> >>>> This utility demonstrates how ION buffer sharing can be implemented >>>> between >>>> two user space processes, using various heap ids. >>>> >>>> This utility is verified on Ubuntu 32-bit machine using 2 independent >>>> process such as: ionapp_export (server) and ionapp_import (client). >>>> First the server needs to be run to export FD to the client. >>>> This utility works only if /dev/ion interface is present. >>>> >>>> Here is a sample demo example: >>>> >>>> linux-stable/tools/android/ion$ sudo ./ionapp_export.out -i 1 -s 10 >>>> heap_type: 2, heap_size: 10 >>>> Fill buffer content: >>>> 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd >>>> Sharing fd: 6, Client fd: 5 >>>> <ion_close_buffer_fd>: buffer release successfully.... >>>> >>>> linux-stable/tools/android/ion$ sudo ./ionapp_import.out >>>> Received buffer fd: 4 >>>> Read buffer content: >>>> 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd >>>> Fill buffer content: >>>> 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd >>>> 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd >>>> 0xfd 0xfd 0xfd 0xfd >>>> <ion_close_buffer_fd>: buffer release successfully.... >>>> >>>> Signed-off-by: Pintu Agarwal<pintu.p...@gmail.com> >>> >>> >>> This is a good start on a test app for Ion but it needs to be >>> updated to use the new ABI. >> >> Thanks Laura for your feedback. >> Can you point out what changes are required? >> > Ok I got it what you mean. > In the latest mainline kernel I observed that there are several > changes to uapi/ion.h header file. > Like this one: > staging: android: ion: Break the ABI in the name of forward progress > > I can quickly make those changes. > In fact I actually started with linux-next tree itself. > But there is one problem that I am facing using linux-next or latest > mainline kernel. > Right now, I am running Ubuntu on Oracle virtual box 5.1 (I don't have > the real Ubuntu PC as of now). > This virtual box supports only 4.10 LTS kernel version. > If I try to build and flash for higher kernel version, the system does > not boot and goes to kernel panic during boot (even without my > changes). > So, I ended up using the same LTS kernel version. > > Now I need to figure out how to use the linux-next tree. > If you have any suggestions please let me know. > Ok, one option is, I can pull all those recent patches and apply on my LTS branch then verify it and submit on latest release. But, is there any other option to verify linux-next tree?
> > Thanks, > Pintu > >>> >>> Thanks, >>> Laura
