Signed-off-by: Lionel Landwerlin <lionel.g.landwer...@intel.com>
---
 tests/Makefile.sources |   1 +
 tests/meson.build      |   1 +
 tests/query.c          | 268 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 270 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 4c4bee1d..70df38f3 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..cb5aedd4
--- /dev/null
+++ b/tests/query.c
@@ -0,0 +1,268 @@
+/*
+ * 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 query uAPI.");
+
+static bool has_query_supports(int fd)
+{
+       struct drm_i915_query query = {};
+
+       return igt_ioctl(fd, DRM_IOCTL_I915_QUERY, &query) == 0;
+}
+
+static void test_query_garbage(int fd)
+{
+       struct drm_i915_query query;
+       struct drm_i915_query_item items[2];
+
+       memset(&query, 0, sizeof(query));
+       query.num_items = 1;
+       query.items_ptr = 0xffffffff;
+       do_ioctl_err(fd, DRM_IOCTL_I915_QUERY, &query, EFAULT);
+
+       memset(&query, 0, sizeof(query));
+       query.num_items = 1;
+       query.items_ptr = 0;
+       do_ioctl_err(fd, DRM_IOCTL_I915_QUERY, &query, EFAULT);
+
+       memset(&query, 0, sizeof(query));
+       query.num_items = 2;
+       query.items_ptr = (uintptr_t) items;
+       memset(items, 0, sizeof(items));
+       items[0].query_id = 0xffffffff;
+       do_ioctl_err(fd, DRM_IOCTL_I915_QUERY, &query, EINVAL);
+
+       memset(&query, 0, sizeof(query));
+       query.num_items = 2;
+       query.items_ptr = (uintptr_t) items;
+       memset(items, 0, sizeof(items));
+       do_ioctl_err(fd, DRM_IOCTL_I915_QUERY, &query, EINVAL);
+
+       memset(&query, 0, sizeof(query));
+       query.num_items = 2;
+       query.items_ptr = (uintptr_t) items;
+       memset(items, 0, sizeof(items));
+       items[0].query_id = DRM_I915_QUERY_SLICE_INFO;
+       items[0].length = 0xffffffff;
+       items[1].query_id = DRM_I915_QUERY_SUBSLICE_INFO;
+       do_ioctl_err(fd, DRM_IOCTL_I915_QUERY, &query, EINVAL);
+}
+
+static bool query_topology_supported(int fd)
+{
+       struct drm_i915_query query;
+       struct drm_i915_query_item item;
+
+       memset(&query, 0, sizeof(query));
+       query.num_items = 1;
+       query.items_ptr = (uintptr_t) &item;
+
+       memset(&item, 0, sizeof(item));
+       item.query_id = DRM_I915_QUERY_SLICE_INFO;
+
+       return igt_ioctl(fd, DRM_IOCTL_I915_QUERY, &query) == 0;
+}
+
+static void test_query_topology_pre_gen8(int fd)
+{
+       struct drm_i915_query query;
+       struct drm_i915_query_item item;
+
+       memset(&query, 0, sizeof(query));
+       query.num_items = 1;
+       query.items_ptr = (uintptr_t) &item;
+
+       memset(&item, 0, sizeof(item));
+       item.query_id = DRM_I915_QUERY_SLICE_INFO;
+
+       do_ioctl_err(fd, DRM_IOCTL_I915_QUERY, &query, ENODEV);
+}
+
+static void
+test_query_topology_coherent_slice_mask(int fd)
+{
+       struct drm_i915_query query;
+       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(&query, 0, sizeof(query));
+       query.num_items = 1;
+       query.items_ptr = (uintptr_t) &item;
+       memset(&item, 0, sizeof(item));
+       item.query_id = DRM_I915_QUERY_SLICE_INFO;
+       do_ioctl(fd, DRM_IOCTL_I915_QUERY, &query);
+
+       slices_info = (struct drm_i915_query_slice_info *) calloc(1, 
item.length);
+
+       item.data_ptr = (uintptr_t) slices_info;
+       do_ioctl(fd, DRM_IOCTL_I915_QUERY, &query);
+
+       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(&query, 0, sizeof(query));
+       query.num_items = 1;
+       query.items_ptr = (uintptr_t) &item;
+       memset(&item, 0, sizeof(item));
+       item.query_id = DRM_I915_QUERY_SUBSLICE_INFO;
+       do_ioctl(fd, DRM_IOCTL_I915_QUERY, &query);
+
+       subslices_info = (struct drm_i915_query_subslice_info *) calloc(1, 
item.length);
+
+       item.data_ptr = (uintptr_t) subslices_info;
+       do_ioctl(fd, DRM_IOCTL_I915_QUERY, &query);
+
+       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 query;
+       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(&query, 0, sizeof(query));
+       query.num_items = 1;
+       query.items_ptr = (uintptr_t) &item;
+       memset(&item, 0, sizeof(item));
+       item.query_id = DRM_I915_QUERY_EU_INFO;
+       do_ioctl(fd, DRM_IOCTL_I915_QUERY, &query);
+
+       eus_info = (struct drm_i915_query_eu_info *) calloc(1, item.length);
+
+       item.data_ptr = (uintptr_t) eus_info;
+       do_ioctl(fd, DRM_IOCTL_I915_QUERY, &query);
+
+       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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