This is intended to test the scheduler behaviour is correct.
The subtests are
-basic
Tests that batch buffers of the same priority submitted to a ring
execute in the order they are submitted.
-read
Submits a batch buffer with a read dependency to a buffer object to
a ring which is held in the scheduler queue by a long running batch
buffer. Submit batch buffers to other rings that have a read dependency
to the same buffer object. Ensure they execute before the batch buffer
being held up behind the long running batch buffer.
-write
Submits a batch buffer with a write dependency to a buffer object to
a ring which is held in the scheduler queue by a long running batch
buffer. Submit batch buffers to other rings that have a write dependency
to the same buffer object. Submit batch buffers with no interdependencies
to all rings. Ensure the batch buffers that have write dependencies are
executed in submission order but the batch buffers without interdependencies
do not get held up.
v2: Addressed review comments from Daniele Ceraolo Spurio
Signed-off-by: Derek Morton
---
tests/Makefile.sources | 1 +
tests/gem_scheduler.c | 451 +
2 files changed, 452 insertions(+)
create mode 100644 tests/gem_scheduler.c
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index f8b18b0..c88e045 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -66,6 +66,7 @@ TESTS_progs_M = \
gem_request_retire \
gem_reset_stats \
gem_ringfill \
+ gem_scheduler \
gem_set_tiling_vs_blt \
gem_softpin \
gem_stolen \
diff --git a/tests/gem_scheduler.c b/tests/gem_scheduler.c
new file mode 100644
index 000..762b69f
--- /dev/null
+++ b/tests/gem_scheduler.c
@@ -0,0 +1,451 @@
+/*
+ * Copyright © 2016 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *Derek Morton
+ *
+ */
+
+#include "igt.h"
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+IGT_TEST_DESCRIPTION("Check scheduler behaviour. Basic tests ensure
independant "
+ "batch buffers of the same priority are executed in "
+ "submission order. Read-read tests ensure "
+ "batch buffers with a read dependency to the same buffer "
+ "object do not block each other. Write-write dependency "
+ "tests ensure batch buffers with a write dependency to a "
+ "buffer object will be executed in submission order but "
+ "will not block execution of other independant batch "
+ "buffers.");
+
+#define SEC_TO_NSEC (1000 * 1000 * 1000)
+
+static struct ring {
+ const char *name;
+ int id;
+ bool exists;
+} rings[] = {
+ { "render", I915_EXEC_RENDER, false },
+ { "bsd1",I915_EXEC_BSD | 1<<13, false },
+ { "bsd2",I915_EXEC_BSD | 2<<13, false },
+ { "blt",I915_EXEC_BLT, false },
+ { "vebox", I915_EXEC_VEBOX, false },
+};
+
+#define NBR_RINGS (sizeof(rings)/sizeof(struct ring))
+
+static void check_rings(int fd) {
+ int loop;
+ for(loop=0; loop < NBR_RINGS; loop++) {
+ if(gem_has_ring(fd, rings[loop].id)) {
+ if(rings[loop].id == (I915_EXEC_BSD | 2<<13))
+ rings[loop].exists = gem_has_bsd2(fd);
+ else
+ rings[loop].exists = true;
+ }
+ }
+}
+
+static drm_intel_bo *create_and_check_bo(drm_intel_bufmgr *bufmgr, const char
*desc)
+{
+ drm_intel_bo *bo = drm_intel_bo_alloc(bufmgr, desc, BATCH_SZ, BATCH_SZ);
+ igt_assert_f(bo, "Failed allocating %s\n", desc);
+ return bo;
+}
+
+static struct intel_batchbuffer *create_delay_bb(int fd, drm_intel_
