drm/i915: Test creation of VMA
Simple test to exercise creation and lookup of VMA within an object. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-34-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
parent
aae4a3d811
commit
e3c7a1c537
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@ -690,3 +690,6 @@ destroy:
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return 0;
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}
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#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
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#include "selftests/i915_vma.c"
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#endif
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@ -15,3 +15,4 @@ selftest(breadcrumbs, intel_breadcrumbs_mock_selftests)
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selftest(requests, i915_gem_request_mock_selftests)
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selftest(objects, i915_gem_object_mock_selftests)
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selftest(dmabuf, i915_gem_dmabuf_mock_selftests)
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selftest(vma, i915_vma_mock_selftests)
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@ -0,0 +1,224 @@
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/*
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* Copyright © 2016 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#include <linux/prime_numbers.h>
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#include "../i915_selftest.h"
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#include "mock_gem_device.h"
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#include "mock_context.h"
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static bool assert_vma(struct i915_vma *vma,
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struct drm_i915_gem_object *obj,
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struct i915_gem_context *ctx)
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{
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bool ok = true;
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if (vma->vm != &ctx->ppgtt->base) {
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pr_err("VMA created with wrong VM\n");
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ok = false;
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}
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if (vma->size != obj->base.size) {
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pr_err("VMA created with wrong size, found %llu, expected %zu\n",
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vma->size, obj->base.size);
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ok = false;
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}
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if (vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL) {
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pr_err("VMA created with wrong type [%d]\n",
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vma->ggtt_view.type);
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ok = false;
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}
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return ok;
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}
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static struct i915_vma *
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checked_vma_instance(struct drm_i915_gem_object *obj,
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struct i915_address_space *vm,
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struct i915_ggtt_view *view)
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{
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struct i915_vma *vma;
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bool ok = true;
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vma = i915_vma_instance(obj, vm, view);
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if (IS_ERR(vma))
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return vma;
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/* Manual checks, will be reinforced by i915_vma_compare! */
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if (vma->vm != vm) {
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pr_err("VMA's vm [%p] does not match request [%p]\n",
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vma->vm, vm);
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ok = false;
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}
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if (i915_is_ggtt(vm) != i915_vma_is_ggtt(vma)) {
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pr_err("VMA ggtt status [%d] does not match parent [%d]\n",
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i915_vma_is_ggtt(vma), i915_is_ggtt(vm));
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ok = false;
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}
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if (i915_vma_compare(vma, vm, view)) {
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pr_err("i915_vma_compare failed with create parmaters!\n");
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return ERR_PTR(-EINVAL);
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}
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if (i915_vma_compare(vma, vma->vm,
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i915_vma_is_ggtt(vma) ? &vma->ggtt_view : NULL)) {
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pr_err("i915_vma_compare failed with itself\n");
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return ERR_PTR(-EINVAL);
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}
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if (!ok) {
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pr_err("i915_vma_compare failed to detect the difference!\n");
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return ERR_PTR(-EINVAL);
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}
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return vma;
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}
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static int create_vmas(struct drm_i915_private *i915,
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struct list_head *objects,
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struct list_head *contexts)
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{
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struct drm_i915_gem_object *obj;
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struct i915_gem_context *ctx;
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int pinned;
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list_for_each_entry(obj, objects, st_link) {
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for (pinned = 0; pinned <= 1; pinned++) {
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list_for_each_entry(ctx, contexts, link) {
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struct i915_address_space *vm =
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&ctx->ppgtt->base;
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struct i915_vma *vma;
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int err;
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vma = checked_vma_instance(obj, vm, NULL);
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if (IS_ERR(vma))
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return PTR_ERR(vma);
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if (!assert_vma(vma, obj, ctx)) {
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pr_err("VMA lookup/create failed\n");
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return -EINVAL;
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}
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if (!pinned) {
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err = i915_vma_pin(vma, 0, 0, PIN_USER);
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if (err) {
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pr_err("Failed to pin VMA\n");
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return err;
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}
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} else {
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i915_vma_unpin(vma);
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}
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}
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}
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}
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return 0;
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}
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static int igt_vma_create(void *arg)
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{
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struct drm_i915_private *i915 = arg;
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struct drm_i915_gem_object *obj, *on;
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struct i915_gem_context *ctx, *cn;
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unsigned long num_obj, num_ctx;
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unsigned long no, nc;
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IGT_TIMEOUT(end_time);
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LIST_HEAD(contexts);
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LIST_HEAD(objects);
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int err;
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/* Exercise creating many vma amonst many objections, checking the
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* vma creation and lookup routines.
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*/
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no = 0;
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for_each_prime_number(num_obj, ULONG_MAX - 1) {
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for (; no < num_obj; no++) {
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obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
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if (IS_ERR(obj))
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goto out;
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list_add(&obj->st_link, &objects);
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}
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nc = 0;
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for_each_prime_number(num_ctx, MAX_CONTEXT_HW_ID) {
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for (; nc < num_ctx; nc++) {
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ctx = mock_context(i915, "mock");
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if (!ctx)
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goto out;
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list_move(&ctx->link, &contexts);
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}
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err = create_vmas(i915, &objects, &contexts);
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if (err)
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goto out;
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if (igt_timeout(end_time,
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"%s timed out: after %lu objects in %lu contexts\n",
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__func__, no, nc))
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goto end;
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}
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list_for_each_entry_safe(ctx, cn, &contexts, link)
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mock_context_close(ctx);
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}
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end:
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/* Final pass to lookup all created contexts */
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err = create_vmas(i915, &objects, &contexts);
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out:
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list_for_each_entry_safe(ctx, cn, &contexts, link)
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mock_context_close(ctx);
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list_for_each_entry_safe(obj, on, &objects, st_link)
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i915_gem_object_put(obj);
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return err;
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}
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int i915_vma_mock_selftests(void)
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{
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static const struct i915_subtest tests[] = {
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SUBTEST(igt_vma_create),
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};
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struct drm_i915_private *i915;
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int err;
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i915 = mock_gem_device();
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if (!i915)
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return -ENOMEM;
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mutex_lock(&i915->drm.struct_mutex);
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err = i915_subtests(tests, i915);
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mutex_unlock(&i915->drm.struct_mutex);
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drm_dev_unref(&i915->drm);
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return err;
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}
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