[Intel-gfx] [PATCH 31/37] drm/i915: Test creation of VMA
Chris Wilson
chris at chris-wilson.co.uk
Wed Jan 11 21:09:31 UTC 2017
Simple test to exercise creation and lookup of VMA within an object.
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_vma.c | 3 +
.../gpu/drm/i915/selftests/i915_mock_selftests.h | 1 +
drivers/gpu/drm/i915/selftests/i915_vma.c | 176 +++++++++++++++++++++
3 files changed, 180 insertions(+)
create mode 100644 drivers/gpu/drm/i915/selftests/i915_vma.c
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 6424352a69b2..af8738a84a85 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -621,3 +621,6 @@ int i915_vma_unbind(struct i915_vma *vma)
return 0;
}
+#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
+#include "selftests/i915_vma.c"
+#endif
diff --git a/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h b/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
index 955a4d6ccdaf..b450eab7e6e1 100644
--- a/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
+++ b/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
@@ -15,3 +15,4 @@ selftest(breadcrumbs, intel_breadcrumbs_mock_selftests)
selftest(requests, i915_gem_request_mock_selftests)
selftest(objects, i915_gem_object_mock_selftests)
selftest(dmabuf, i915_gem_dmabuf_mock_selftests)
+selftest(vma, i915_vma_mock_selftests)
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
new file mode 100644
index 000000000000..ebd200245f88
--- /dev/null
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -0,0 +1,176 @@
+/*
+ * 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.
+ *
+ */
+
+#include <linux/prime_numbers.h>
+
+#include "i915_selftest.h"
+
+#include "mock_gem_device.h"
+#include "mock_context.h"
+
+static bool assert_vma(struct i915_vma *vma,
+ struct drm_i915_gem_object *obj,
+ struct i915_gem_context *ctx)
+{
+ if (vma->vm != &ctx->ppgtt->base) {
+ pr_err("VMA created with wrong VM\n");
+ return false;
+ }
+
+ if (vma->size != obj->base.size) {
+ pr_err("VMA created with wrong size, found %llu, expected %zu\n",
+ vma->size, obj->base.size);
+ return false;
+ }
+
+ if (vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL) {
+ pr_err("VMA created with wrong type [%d]\n",
+ vma->ggtt_view.type);
+ return false;
+ }
+
+ return true;
+}
+
+static int vma_create(struct drm_i915_private *i915,
+ struct list_head *objects,
+ struct list_head *contexts)
+{
+ struct drm_i915_gem_object *obj;
+ struct i915_gem_context *ctx;
+ int pinned;
+
+ list_for_each_entry(obj, objects, batch_pool_link) {
+ for (pinned = 0; pinned <= 1; pinned++) {
+ list_for_each_entry(ctx, contexts, link) {
+ struct i915_vma *vma;
+ int err;
+
+ vma = i915_gem_obj_lookup_or_create_vma(obj, &ctx->ppgtt->base, NULL);
+ if (IS_ERR(vma))
+ return PTR_ERR(vma);
+
+ if (!assert_vma(vma, obj, ctx)) {
+ pr_err("VMA lookup/create failed\n");
+ return -EINVAL;
+ }
+
+ if (!pinned) {
+ err = i915_vma_pin(vma, 0, 0, PIN_USER);
+ if (err) {
+ pr_err("Failed to pin VMA\n");
+ return err;
+ }
+ } else {
+ i915_vma_unpin(vma);
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int igt_vma_create(void *arg)
+{
+ I915_SELFTEST_TIMEOUT(end_time);
+ LIST_HEAD(objects);
+ LIST_HEAD(contexts);
+ struct drm_i915_private *i915 = arg;
+ struct drm_i915_gem_object *obj, *on;
+ struct i915_gem_context *ctx, *cn;
+ unsigned long num_obj, num_ctx;
+ unsigned long no, nc;
+ int err;
+
+ no = 0;
+ for_each_prime_number(num_obj, 8192) {
+ for (; no < num_obj; no++) {
+ obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
+ if (IS_ERR(obj))
+ goto err;
+
+ list_add(&obj->batch_pool_link, &objects);
+ }
+
+ list_for_each_entry_safe(ctx, cn, &contexts, link)
+ mock_context_close(ctx);
+
+ nc = 0;
+ for_each_prime_number(num_ctx, 8192) {
+ cond_resched();
+ if (signal_pending(current)) {
+ err = -EINTR;
+ goto err;
+ }
+
+ for (; nc < num_ctx; nc++) {
+ ctx = mock_context(i915, "mock");
+ if (!ctx)
+ goto err;
+
+ list_move(&ctx->link, &contexts);
+ }
+
+ err = vma_create(i915, &objects, &contexts);
+ if (err)
+ goto err;
+ }
+
+ if (time_after(jiffies, end_time)) {
+ pr_warn("%s timed out: after %lu objects\n", __func__, no);
+ break;
+ }
+ }
+
+ /* Final pass to lookup all created contexts */
+ err = vma_create(i915, &objects, &contexts);
+err:
+ list_for_each_entry_safe(ctx, cn, &contexts, link)
+ mock_context_close(ctx);
+
+ list_for_each_entry_safe(obj, on, &objects, batch_pool_link)
+ i915_gem_object_put(obj);
+ return err;
+}
+
+int i915_vma_mock_selftests(void)
+{
+ static const struct i915_subtest tests[] = {
+ SUBTEST(igt_vma_create),
+ };
+ struct drm_i915_private *i915;
+ int err;
+
+ i915 = mock_gem_device();
+ if (!i915)
+ return -ENOMEM;
+
+ mutex_lock(&i915->drm.struct_mutex);
+ err = i915_subtests(tests, i915);
+ mutex_unlock(&i915->drm.struct_mutex);
+
+ return err;
+}
+
--
2.11.0
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