From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Check that no-op execution speed is the same in headless mode and with the display active. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100572 Cc: Imre Deak <imre.deak@xxxxxxxxx> --- 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); + + /* 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 Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
