diff options
| -rw-r--r-- | tests/gem_sync.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/tests/gem_sync.c b/tests/gem_sync.c index 2fcb9aa0..747412c5 100644 --- a/tests/gem_sync.c +++ b/tests/gem_sync.c @@ -178,6 +178,95 @@ idle_ring(int fd, unsigned ring, int timeout) } static void +wakeup_ring(int fd, unsigned ring, int timeout) +{ + unsigned engines[16]; + const char *names[16]; + int num_engines = 0; + + if (ring == ALL_ENGINES) { + for_each_physical_engine(fd, ring) { + if (!gem_can_store_dword(fd, ring)) + continue; + + names[num_engines] = e__->name; + engines[num_engines++] = ring; + if (num_engines == ARRAY_SIZE(engines)) + break; + } + igt_require(num_engines); + } else { + gem_require_ring(fd, ring); + igt_require(gem_can_store_dword(fd, ring)); + names[num_engines] = NULL; + engines[num_engines++] = ring; + } + + intel_detect_and_clear_missed_interrupts(fd); + igt_fork(child, num_engines) { + const uint32_t bbe = MI_BATCH_BUFFER_END; + struct drm_i915_gem_exec_object2 object; + struct drm_i915_gem_execbuffer2 execbuf; + double end, this, elapsed, now; + unsigned long cycles; + uint32_t cmd; + igt_spin_t *spin; + + memset(&object, 0, sizeof(object)); + object.handle = gem_create(fd, 4096); + gem_write(fd, object.handle, 0, &bbe, sizeof(bbe)); + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(&object); + execbuf.buffer_count = 1; + execbuf.flags = engines[child % num_engines]; + + spin = __igt_spin_batch_new(fd, + .engine = execbuf.flags, + .flags = (IGT_SPIN_POLL_RUN | + IGT_SPIN_FAST)); + igt_assert(spin->running); + cmd = *spin->batch; + + gem_execbuf(fd, &execbuf); + + igt_spin_batch_end(spin); + gem_sync(fd, object.handle); + + end = gettime() + timeout; + elapsed = 0; + cycles = 0; + do { + *spin->batch = cmd; + *spin->running = 0; + gem_execbuf(fd, &spin->execbuf); + while (!READ_ONCE(*spin->running)) + ; + + gem_execbuf(fd, &execbuf); + + this = gettime(); + igt_spin_batch_end(spin); + gem_sync(fd, object.handle); + now = gettime(); + + elapsed += now - this; + cycles++; + } while (now < end); + + igt_info("%s%sompleted %ld cycles: %.3f us\n", + names[child % num_engines] ?: "", + names[child % num_engines] ? " c" : "C", + cycles, elapsed*1e6/cycles); + + igt_spin_batch_free(fd, spin); + gem_close(fd, object.handle); + } + igt_waitchildren_timeout(timeout+10, NULL); + igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0); +} + +static void store_ring(int fd, unsigned ring, int num_children, int timeout) { const int gen = intel_gen(intel_get_drm_devid(fd)); @@ -761,6 +850,8 @@ igt_main sync_ring(fd, e->exec_id | e->flags, 1, 150); igt_subtest_f("idle-%s", e->name) idle_ring(fd, e->exec_id | e->flags, 150); + igt_subtest_f("wakeup-%s", e->name) + wakeup_ring(fd, e->exec_id | e->flags, 150); igt_subtest_f("store-%s", e->name) store_ring(fd, e->exec_id | e->flags, 1, 150); igt_subtest_f("many-%s", e->name) @@ -781,6 +872,8 @@ igt_main sync_ring(fd, ALL_ENGINES, ncpus, 150); igt_subtest("forked-store-each") store_ring(fd, ALL_ENGINES, ncpus, 150); + igt_subtest("wakeup-each") + wakeup_ring(fd, ALL_ENGINES, 150); igt_subtest("basic-all") sync_all(fd, 1, 5); |