From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Test that the engine info ioctl works.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
tests/Makefile.sources | 1 +
tests/gem_engine_info.c | 317 ++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 318 insertions(+)
create mode 100644 tests/gem_engine_info.c
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 5b98a5a371b8..010d9d796954 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -61,6 +61,7 @@ TESTS_progs = \
gem_ctx_thrash \
gem_double_irq_loop \
gem_eio \
+ gem_engine_info \
gem_evict_alignment \
gem_evict_everything \
gem_exec_alignment \
diff --git a/tests/gem_engine_info.c b/tests/gem_engine_info.c
new file mode 100644
index 000000000000..cd570de60ebd
--- /dev/null
+++ b/tests/gem_engine_info.c
@@ -0,0 +1,317 @@
+/*
+ * Copyright © 2017 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.
+ */
+
+#include "igt.h"
+
+IGT_TEST_DESCRIPTION("Testing the engine info uAPI.");
+
+#define LOCAL_DRM_I915_GEM_ENGINE_INFO 0x37
+
+#define LOCAL_DRM_IOCTL_I915_GEM_ENGINE_INFO \
+ DRM_IOWR(DRM_COMMAND_BASE + LOCAL_DRM_I915_GEM_ENGINE_INFO, \
+ struct local_drm_i915_gem_engine_info)
+
+enum local_drm_i915_gem_engine_class {
+ I915_ENGINE_CLASS_OTHER = 0,
+ I915_ENGINE_CLASS_RENDER = 1,
+ I915_ENGINE_CLASS_COPY = 2,
+ I915_ENGINE_CLASS_VIDEO = 3,
+ I915_ENGINE_CLASS_VIDEO_ENHANCE = 4,
+ I915_ENGINE_CLASS_MAX /* non-ABI */
+};
+
+struct local_drm_i915_engine_info {
+ /** Engine instance number. */
+ __u8 instance;
+
+ /** Engine specific info. */
+#define LOCAL_I915_VCS_HAS_HEVC BIT(0)
+ __u8 info;
+
+ __u8 rsvd[6];
+};
+
+struct local_drm_i915_gem_engine_info {
+ /** in/out: Protocol version requested/supported. */
+ __u32 version;
+
+ /** in: Engine class to probe (enum drm_i915_gem_engine_class). */
+ __u32 engine_class;
+
+ /**
+ * in/out: Number of struct drm_i915_engine_info entries in the provided
+ * @info_ptr array and actual number of supported hardware engines.
+ */
+ __u32 num_engines;
+ __u32 rsvd;
+
+ /** in/out: Pointer to array of struct i915_engine_info elements. */
+ __u64 info_ptr;
+
+};
+
+static int
+__get_engine_info(int fd, struct local_drm_i915_gem_engine_info *info)
+{
+ int ret;
+
+ ret = drmIoctl(fd, LOCAL_DRM_IOCTL_I915_GEM_ENGINE_INFO, info);
+ if (ret)
+ ret = -errno;
+
+ return ret;
+}
+
+static void test_version(int fd)
+{
+ struct local_drm_i915_gem_engine_info info = {};
+ int ret;
+
+ info.version = 0;
+ ret = __get_engine_info(fd, &info);
+ igt_assert_eq(ret, 0);
+ igt_assert_eq(info.version, 1);
+}
+
+static void test_garbage(int fd)
+{
+ struct local_drm_i915_gem_engine_info info = {};
+ int ret;
+
+ info.version = 1;
+ info.rsvd = 1;
+
+ ret = __get_engine_info(fd, &info);
+ igt_assert_eq(ret, -EINVAL);
+}
+
+static void test_enum_classes(int fd)
+{
+ struct local_drm_i915_gem_engine_info info;
+ enum local_drm_i915_gem_engine_class class;
+ int ret;
+
+ for (class = 0; class < 100 /* a large number */; class++) {
+ memset(&info, 0, sizeof(info));
+ info.version = 1;
+ info.engine_class = class;
+ ret = __get_engine_info(fd, &info);
+ if (class < I915_ENGINE_CLASS_MAX) {
+ igt_assert_eq(ret, 0);
+ } else {
+ igt_assert_eq(ret, -EINVAL);
+ break;
+ }
+ }
+}
+
+static void test_enum_other_class(int fd)
+{
+ struct local_drm_i915_gem_engine_info info = {};
+ int ret;
+
+ info.version = 1;
+ info.engine_class = I915_ENGINE_CLASS_OTHER;
+
+ ret = __get_engine_info(fd, &info);
+ igt_assert_eq(ret, 0);
+ igt_assert_eq(info.num_engines, 0);
+}
+
+static void test_enum_vcs_class(int fd)
+{
+ struct local_drm_i915_gem_engine_info info = {};
+ unsigned int num_vcs;
+ int ret;
+
+ num_vcs = gem_has_bsd(fd);
+ num_vcs += gem_has_bsd2(fd);
+
+ info.version = 1;
+ info.engine_class = I915_ENGINE_CLASS_VIDEO;
+
+ ret = __get_engine_info(fd, &info);
+ igt_assert_eq(ret, 0);
+ igt_assert(info.num_engines >= num_vcs);
+}
+
+static void test_enum_other_classes(int fd)
+{
+ struct local_drm_i915_gem_engine_info info;
+ enum local_drm_i915_gem_engine_class class;
+ int ret;
+
+ for (class = 0; class < I915_ENGINE_CLASS_MAX; class++) {
+ if (class == I915_ENGINE_CLASS_VIDEO ||
+ class == I915_ENGINE_CLASS_OTHER)
+ continue;
+
+ memset(&info, 0, sizeof(info));
+ info.version = 1;
+ info.engine_class = class;
+ ret = __get_engine_info(fd, &info);
+ igt_assert_eq(ret, 0);
+ igt_assert_eq(info.num_engines, 1);
+ }
+}
+
+static void test_null_array(int fd)
+{
+ struct local_drm_i915_gem_engine_info info = {};
+ int ret;
+
+ info.version = 1;
+ info.engine_class = I915_ENGINE_CLASS_RENDER;
+ info.num_engines = 1;
+ info.info_ptr = 0;
+
+ ret = __get_engine_info(fd, &info);
+ igt_assert_eq(ret, -EFAULT);
+}
+
+static void test_short_array(int fd)
+{
+ struct local_drm_i915_gem_engine_info info = {};
+ struct local_drm_i915_engine_info engines[2];
+ unsigned int num_vcs;
+ int ret;
+
+ igt_require(gem_has_bsd2(fd));
+
+ num_vcs = gem_has_bsd(fd);
+ num_vcs += gem_has_bsd2(fd);
+
+ info.version = 1;
+ info.engine_class = I915_ENGINE_CLASS_VIDEO;
+ info.num_engines = 1;
+ info.info_ptr = to_user_pointer(&engines[0]);
+ memset(engines, 0, sizeof(engines));
+
+ ret = __get_engine_info(fd, &info);
+ igt_assert_eq(ret, 0);
+
+ igt_assert_eq(info.num_engines, num_vcs);
+ igt_assert_eq(engines[1].instance, 0);
+}
+
+static unsigned int legacy_count_engines(int fd)
+{
+ unsigned int total = 0;
+ const struct intel_execution_engine *e;
+
+ for (e = intel_execution_engines; e->name; e++) {
+ if (e->exec_id == 0)
+ continue;
+
+ if (!gem_has_ring(fd, e->exec_id | e->flags))
+ continue;
+
+ if (e->exec_id == I915_EXEC_BSD) {
+ int is_bsd2 = e->flags != 0;
+ if (gem_has_bsd2(fd) != is_bsd2)
+ continue;
+ }
+
+ total++;
+ }
+
+ return total;
+}
+
+static void test_query_classes(int fd)
+{
+ unsigned int legacy_num_engines = legacy_count_engines(fd);
+ unsigned int num_engines = 0;
+ enum local_drm_i915_gem_engine_class class;
+ struct local_drm_i915_gem_engine_info info;
+ struct local_drm_i915_engine_info engines[16]; /* a large number */
+ unsigned int i, j;
+ int ret;
+
+ for (class = 0; class < I915_ENGINE_CLASS_MAX; class++) {
+ memset(&info, 0, sizeof(info));
+ info.version = 1;
+ info.engine_class = class;
+ info.num_engines = ARRAY_SIZE(engines);
+ info.info_ptr = to_user_pointer(&engines[0]);
+ ret = __get_engine_info(fd, &info);
+ igt_assert_eq(ret, 0);
+ num_engines += info.num_engines;
+ for (i = 0; i < info.num_engines; i++) {
+ for (j = 0; j < ARRAY_SIZE(engines[0].rsvd); j++)
+ igt_assert_eq(engines[i].rsvd[j], 0);
+ }
+ }
+
+ igt_debug("num_engines=%u/%u\n", num_engines, legacy_num_engines);
+
+ igt_assert_eq(num_engines, legacy_num_engines);
+}
+
+igt_main
+{
+ int fd = -1;
+
+ igt_fixture {
+ struct local_drm_i915_gem_engine_info info = {};
+ int ret;
+
+ fd = drm_open_driver(DRIVER_INTEL);
+
+ info.version = 1;
+ ret = __get_engine_info(fd, &info);
+ igt_require(ret == 0);
+ igt_require(info.version == 1);
+ }
+
+ igt_subtest("basic-version")
+ test_version(fd);
+
+ igt_subtest("basic-garbage")
+ test_garbage(fd);
+
+ igt_subtest("basic-enum-classes")
+ test_enum_classes(fd);
+
+ igt_subtest("basic-enum-other-class")
+ test_enum_other_class(fd);
+
+ igt_subtest("basic-enum-vcs-class")
+ test_enum_vcs_class(fd);
+
+ igt_subtest("basic-enum-other-classes")
+ test_enum_other_classes(fd);
+
+ igt_subtest("basic-null-array")
+ test_null_array(fd);
+
+ igt_subtest("basic-short-array")
+ test_short_array(fd);
+
+ igt_subtest("basic-query-classes")
+ test_query_classes(fd);
+
+ igt_fixture {
+ close(fd);
+ }
+}
--
2.9.4
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