On Thu, Apr 13, 2017 at 02:14:17PM +0100, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <[email protected]>
>
> Check that no-op execution speed is the same in headless mode
> and with the display active.
>
> Signed-off-by: Tvrtko Ursulin <[email protected]>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100572
> Cc: Imre Deak <[email protected]>
> ---
> tests/gem_exec_nop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 42 insertions(+)
>
> diff --git a/tests/gem_exec_nop.c b/tests/gem_exec_nop.c
> index 5d0d4957545e..e0e53a3108c6 100644
> --- a/tests/gem_exec_nop.c
> +++ b/tests/gem_exec_nop.c
> @@ -112,6 +112,45 @@ static void single(int fd, uint32_t handle,
> ring_name, count, time*1e6 / count);
> }
>
> +static void headless(int fd, uint32_t handle)
> +{
> + const struct intel_execution_engine *e = &intel_execution_engines[0];
> + unsigned int nr_connected = 0;
> + drmModeConnector *connector;
> + drmModeRes *res;
> + unsigned long n1, n2;
> + double delta;
> +
> + res = drmModeGetResources(fd);
> + igt_assert(res);
> +
> + /* require one connected connector for the test */
> + for (int i = 0; i < res->count_connectors; i++) {
> + connector = drmModeGetConnectorCurrent(fd, res->connectors[i]);
> + if (connector->connection == DRM_MODE_CONNECTED)
> + nr_connected++;
> + drmModeFreeConnector(connector);
> + }
> + igt_require(nr_connected == 1);
You could do an actual modeset in case fbcon is not configured.
Also need to call kmstest_set_vt_graphics_mode() to prevent blanking.
Otherwise the display part looks ok to me.
--Imre
> +
> + /* warmup */
> + nop_on_ring(fd, handle, e->exec_id | e->flags, 2, &n1);
> + /* benchmark nops */
> + nop_on_ring(fd, handle, e->exec_id | e->flags, 2, &n1);
> +
> + /* force the last connector off */
> + kmstest_unset_all_crtcs(fd, res);
> +
> + /* warmup */
> + nop_on_ring(fd, handle, e->exec_id | e->flags, 2, &n2);
> + /* benchmark nops again */
> + nop_on_ring(fd, handle, e->exec_id | e->flags, 2, &n2);
> +
> + /* check that the two execution speeds are roughly the same */
> + delta = abs((long)n2 - (long)n1);
> + igt_assert(delta < n1 * 0.1f);
> +}
> +
> static bool ignore_engine(int fd, unsigned engine)
> {
> if (engine == 0)
> @@ -494,6 +533,9 @@ igt_main
> igt_subtest("context-sequential")
> sequential(device, handle, FORKED | CONTEXT, 150);
>
> + igt_subtest("headless")
> + headless(device, handle);
> +
> igt_fixture {
> igt_stop_hang_detector();
> gem_close(device, handle);
> --
> 2.9.3
>
_______________________________________________
Intel-gfx mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
