Use the new fangled igt_interruptible() to limit the number of passes we
require when performing signal injection.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This patch adds ioctl-errors subtest to be used for exercising prime sync ioctl
errors.
The subtest constantly interrupts via signals a function doing concurrent blit
to stress out the right usage of prime_sync_*, making sure these ioctl errors
are handled accordingly. Important to note that in case of failure (e.g. in a
case where the ioctl wouldn't try again in a return error) this test does not
reliably catch the problem with 100% of accuracy.
v2: fix prime sync direction when reading mmap'ed file.
v3: change the upper bound using time rather than loops
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
[ickle: fix memleak, run for longer]
Allow read-only synchronisation on dmabuf mmaps, useful to allow
concurrent read-read testing between the CPU and GPU.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Different than kms_mmap_write_crc that captures the coherency issues within the
scanout mapped buffer, this one is meant for test dma-buf mmap on !llc
platforms mostly and provoke coherency bugs so we know where we need the sync
ioctls.
I tested this with !llc and llc platforms, BTY and IVY respectively.
Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
