[igt-dev] [PATCH i-g-t v2 2/2] tests: add i915 query tests
Lionel Landwerlin
lionel.g.landwerlin at intel.com
Wed Jan 17 15:41:53 UTC 2018
v2: Complete invalid cases (Chris)
Some styling (to_user_pointer, etc...) (Chris)
New error check, through item.length (Chris)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
---
tests/Makefile.sources | 1 +
tests/meson.build | 1 +
tests/query.c | 284 +++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 286 insertions(+)
create mode 100644 tests/query.c
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index e4e06d01..390cc82b 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -227,6 +227,7 @@ TESTS_progs = \
prime_self_import \
prime_udl \
prime_vgem \
+ query \
sw_sync \
syncobj_basic \
syncobj_wait \
diff --git a/tests/meson.build b/tests/meson.build
index 2322217d..77a1f199 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -204,6 +204,7 @@ test_progs = [
'prime_self_import',
'prime_udl',
'prime_vgem',
+ 'query',
'sw_sync',
'syncobj_basic',
'syncobj_wait',
diff --git a/tests/query.c b/tests/query.c
new file mode 100644
index 00000000..020bf484
--- /dev/null
+++ b/tests/query.c
@@ -0,0 +1,284 @@
+/*
+ * 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"
+
+#include <limits.h>
+
+IGT_TEST_DESCRIPTION("Testing the query uAPI.");
+
+static int
+__i915_query(int fd, struct drm_i915_query *q)
+{
+ return igt_ioctl(fd, DRM_IOCTL_I915_QUERY, q);
+}
+
+static int
+__i915_query_item(int fd, struct drm_i915_query_item *items, uint32_t n_items)
+{
+ struct drm_i915_query q = {
+ .num_items = n_items,
+ .items_ptr = to_user_pointer(items),
+ };
+ return __i915_query(fd, &q);
+}
+
+#define i915_query_item(fd, items, n_items) do { \
+ igt_assert_eq(__i915_query_item(fd, items, n_items), 0); \
+ errno = 0; \
+ } while (0)
+#define i915_query_item_err(fd, items, n_items, err) do { \
+ igt_assert_eq(__i915_query_item(fd, items, n_items), 0); \
+ igt_assert_eq(errno, err); \
+ } while (0)
+
+static bool has_query_supports(int fd)
+{
+ struct drm_i915_query query = {};
+
+ return __i915_query(fd, &query);
+}
+
+static void test_query_garbage(int fd)
+{
+ struct drm_i915_query_item items[2];
+ struct drm_i915_query_item *items_ptr;
+ int i, len;
+
+ i915_query_item_err(fd, (void *) ULONG_MAX, 1, EFAULT);
+
+ i915_query_item_err(fd, (void *) 0, 1, EFAULT);
+
+ memset(items, 0, sizeof(items));
+ items[0].query_id = ULONG_MAX;
+ i915_query_item(fd, items, 2);
+ igt_assert_eq(items[0].length, -EINVAL);
+
+ memset(items, 0, sizeof(items));
+ i915_query_item(fd, items, 2);
+ igt_assert_eq(items[0].length, -EINVAL);
+ igt_assert_eq(items[1].length, -EINVAL);
+
+ memset(items, 0, sizeof(items));
+ items[0].query_id = DRM_I915_QUERY_SLICE_INFO;
+ items[1].query_id = DRM_I915_QUERY_SUBSLICE_INFO;
+ items[1].length = sizeof(struct drm_i915_query_subslice_info) - 1;
+ i915_query_item(fd, items, 2);
+ igt_assert_eq(items[0].length, 0);
+ igt_assert_eq(items[1].length, -EINVAL);
+
+ items_ptr = mmap(0, 4096, PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+ items_ptr[0].query_id = DRM_I915_QUERY_SLICE_INFO;
+ i915_query_item(fd, items_ptr, 1);
+ igt_assert(items_ptr[0].length >= sizeof(struct drm_i915_query_slice_info));
+ munmap(items_ptr, 4096);
+ i915_query_item_err(fd, items_ptr, 1, EFAULT);
+
+ len = sizeof(struct drm_i915_query_item) * 10;
+ items_ptr = mmap(0, len, PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+ for (i = 0; i < 10; i++)
+ items_ptr[i].query_id = DRM_I915_QUERY_SLICE_INFO;
+ igt_assert_eq(__i915_query_item(fd, items_ptr,
+ INT_MAX / sizeof(struct drm_i915_query_item) + 1), -1);
+ igt_assert(errno == EFAULT || errno == EINVAL);
+ munmap(items_ptr, len);
+}
+
+static bool query_topology_supported(int fd)
+{
+ struct drm_i915_query_item item = {
+ .query_id = DRM_I915_QUERY_SLICE_INFO,
+ };
+
+ return __i915_query_item(fd, &item, 1) == 0;
+}
+
+static void test_query_topology_pre_gen8(int fd)
+{
+ struct drm_i915_query_item item = {
+ .query_id = DRM_I915_QUERY_SLICE_INFO,
+ };
+
+ i915_query_item(fd, &item, 1);
+ igt_assert_eq(item.length, -ENODEV);
+}
+
+static void
+test_query_topology_coherent_slice_mask(int fd)
+{
+ struct drm_i915_query_item item;
+ struct drm_i915_query_slice_info *slices_info;
+ struct drm_i915_query_subslice_info *subslices_info;
+ drm_i915_getparam_t gp;
+ int slice_mask, subslice_mask;
+ int i, topology_slices, topology_subslices_slice0;
+
+ gp.param = I915_PARAM_SLICE_MASK;
+ gp.value = &slice_mask;
+ do_ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
+
+ gp.param = I915_PARAM_SUBSLICE_MASK;
+ gp.value = &subslice_mask;
+ do_ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
+
+ igt_debug("slice_mask=0x%x subslice_mask=0x%x\n", slice_mask, subslice_mask);
+
+ /* Slices */
+ memset(&item, 0, sizeof(item));
+ item.query_id = DRM_I915_QUERY_SLICE_INFO;
+ i915_query_item(fd, &item, 1);
+ igt_assert(item.length > 0);
+
+ slices_info = (struct drm_i915_query_slice_info *) calloc(1, item.length);
+
+ item.data_ptr = to_user_pointer(slices_info);
+ i915_query_item(fd, &item, 1);
+ igt_assert(item.length > 0);
+
+ topology_slices = 0;
+ for (i = 0; i < slices_info->max_slices; i++) {
+ if (DRM_I915_QUERY_SLICE_AVAILABLE(slices_info, i))
+ topology_slices++;
+ }
+
+ /* These 2 should always match. */
+ igt_assert(__builtin_popcount(slice_mask) == topology_slices);
+
+ free(slices_info);
+
+ /* Subslices */
+ memset(&item, 0, sizeof(item));
+ item.query_id = DRM_I915_QUERY_SUBSLICE_INFO;
+ i915_query_item(fd, &item, 1);
+ igt_assert(item.length > 0);
+
+ subslices_info = (struct drm_i915_query_subslice_info *) calloc(1, item.length);
+
+ item.data_ptr = (uintptr_t) subslices_info;
+ i915_query_item(fd, &item, 1);
+ igt_assert(item.length > 0);
+
+ topology_subslices_slice0 = 0;
+ for (i = 0; i < subslices_info->max_subslices; i++) {
+ topology_subslices_slice0 +=
+ __builtin_popcount(
+ DRM_I915_QUERY_SUBSLICE_AVAILABLE(subslices_info, 0, i));
+ }
+
+ /* I915_PARAM_SUBSLICE_INFO returns the value for slice0, we
+ * should match the values for the first slice of the
+ * topology.
+ */
+ igt_assert(__builtin_popcount(subslice_mask) == topology_subslices_slice0);
+
+ free(subslices_info);
+}
+
+static void
+test_query_topology_matches_eu_total(int fd)
+{
+ struct drm_i915_query_item item;
+ struct drm_i915_query_eu_info *eus_info;
+ drm_i915_getparam_t gp;
+ int n_eus, n_eus_topology, s;
+
+ gp.param = I915_PARAM_EU_TOTAL;
+ gp.value = &n_eus;
+ do_ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
+ igt_debug("n_eus=%i\n", n_eus);
+
+ memset(&item, 0, sizeof(item));
+ item.query_id = DRM_I915_QUERY_EU_INFO;
+ i915_query_item(fd, &item, 1);
+
+ eus_info = (struct drm_i915_query_eu_info *) calloc(1, item.length);
+
+ item.data_ptr = to_user_pointer(eus_info);
+ i915_query_item(fd, &item, 1);
+
+ igt_debug("max_slices=%u max_subslices=%u max_eus_per_subslice=%u\n",
+ eus_info->max_slices, eus_info->max_subslices,
+ eus_info->max_eus_per_subslice);
+
+ n_eus_topology = 0;
+ for (s = 0; s < eus_info->max_slices; s++) {
+ int ss;
+
+ igt_debug("slice%i:\n", s);
+
+ for (ss = 0; ss < eus_info->max_subslices; ss++) {
+ int eu, n_subslice_eus = 0;
+
+ igt_debug("\tsubslice: %i\n", ss);
+
+ igt_debug("\t\teu_mask: 0b");
+ for (eu = 0; eu < eus_info->max_eus_per_subslice; eu++) {
+ uint8_t val = DRM_I915_QUERY_EU_AVAILABLE(eus_info, s, ss,
+ eus_info->max_eus_per_subslice - 1 - eu);
+ igt_debug("%hhi", val);
+ n_subslice_eus += __builtin_popcount(val);
+ n_eus_topology += __builtin_popcount(val);
+ }
+ igt_debug(" (%i)\n", n_subslice_eus);
+ }
+ }
+
+ igt_assert(n_eus_topology == n_eus);
+}
+
+igt_main
+{
+ int fd = -1;
+ int devid;
+
+ igt_fixture {
+ fd = drm_open_driver(DRIVER_INTEL);
+ igt_require(has_query_supports(fd));
+ devid = intel_get_drm_devid(fd);
+ }
+
+ igt_subtest("query-garbage")
+ test_query_garbage(fd);
+
+ igt_subtest("query-topology-pre-gen8") {
+ igt_require(intel_gen(devid) < 8);
+ igt_require(query_topology_supported(fd));
+ test_query_topology_pre_gen8(fd);
+ }
+
+ igt_subtest("query-topology-coherent-slice-mask") {
+ igt_require(AT_LEAST_GEN(devid, 8));
+ igt_require(query_topology_supported(fd));
+ test_query_topology_coherent_slice_mask(fd);
+ }
+
+ igt_subtest("query-topology-matches-eu-total") {
+ igt_require(AT_LEAST_GEN(devid, 8));
+ igt_require(query_topology_supported(fd));
+ test_query_topology_matches_eu_total(fd);
+ }
+
+ igt_fixture {
+ close(fd);
+ }
+}
--
2.15.1
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