On 3/6/19 9:01 AM, John Stultz wrote:
On Wed, Mar 6, 2019 at 8:14 AM Benjamin Gaignard
<benjamin.gaign...@linaro.org> wrote:
Le mar. 5 mars 2019 à 21:54, John Stultz <john.stu...@linaro.org> a écrit :
+
+ printf("Allocating 1 MEG\n");
+ ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0, &dmabuf_fd);
+ if (ret)
+ goto out;
+
+ /* DO SOMETHING WITH THE DMABUF HERE? */
You can do a call to mmap and write a pattern in the buffer.
Yea. I can also do some invalid allocations to make sure things fail properly.
But I was talking a bit w/ Sumit about the lack of any general dmabuf
tests, and am curious if we need to have a importer device driver that
can validate its a real dmabuf and exercise more of the dmabuf ops.
thanks
-john
There's the vgem driver in drm. I did some work to clean that
up so it could take an import af33a9190d02 ("drm/vgem: Enable dmabuf import
interfaces") . I mostly used it for private tests and never ended
up upstreaming any of the tests.
Thanks,
Laura
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