Commit e3c7a1c5 authored by Chris Wilson's avatar Chris Wilson

drm/i915: Test creation of VMA

Simple test to exercise creation and lookup of VMA within an object.
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-34-chris@chris-wilson.co.uk
parent aae4a3d8
...@@ -690,3 +690,6 @@ int i915_vma_unbind(struct i915_vma *vma) ...@@ -690,3 +690,6 @@ int i915_vma_unbind(struct i915_vma *vma)
return 0; return 0;
} }
#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
#include "selftests/i915_vma.c"
#endif
...@@ -15,3 +15,4 @@ selftest(breadcrumbs, intel_breadcrumbs_mock_selftests) ...@@ -15,3 +15,4 @@ selftest(breadcrumbs, intel_breadcrumbs_mock_selftests)
selftest(requests, i915_gem_request_mock_selftests) selftest(requests, i915_gem_request_mock_selftests)
selftest(objects, i915_gem_object_mock_selftests) selftest(objects, i915_gem_object_mock_selftests)
selftest(dmabuf, i915_gem_dmabuf_mock_selftests) selftest(dmabuf, i915_gem_dmabuf_mock_selftests)
selftest(vma, i915_vma_mock_selftests)
/*
* 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)
{
bool ok = true;
if (vma->vm != &ctx->ppgtt->base) {
pr_err("VMA created with wrong VM\n");
ok = false;
}
if (vma->size != obj->base.size) {
pr_err("VMA created with wrong size, found %llu, expected %zu\n",
vma->size, obj->base.size);
ok = false;
}
if (vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL) {
pr_err("VMA created with wrong type [%d]\n",
vma->ggtt_view.type);
ok = false;
}
return ok;
}
static struct i915_vma *
checked_vma_instance(struct drm_i915_gem_object *obj,
struct i915_address_space *vm,
struct i915_ggtt_view *view)
{
struct i915_vma *vma;
bool ok = true;
vma = i915_vma_instance(obj, vm, view);
if (IS_ERR(vma))
return vma;
/* Manual checks, will be reinforced by i915_vma_compare! */
if (vma->vm != vm) {
pr_err("VMA's vm [%p] does not match request [%p]\n",
vma->vm, vm);
ok = false;
}
if (i915_is_ggtt(vm) != i915_vma_is_ggtt(vma)) {
pr_err("VMA ggtt status [%d] does not match parent [%d]\n",
i915_vma_is_ggtt(vma), i915_is_ggtt(vm));
ok = false;
}
if (i915_vma_compare(vma, vm, view)) {
pr_err("i915_vma_compare failed with create parmaters!\n");
return ERR_PTR(-EINVAL);
}
if (i915_vma_compare(vma, vma->vm,
i915_vma_is_ggtt(vma) ? &vma->ggtt_view : NULL)) {
pr_err("i915_vma_compare failed with itself\n");
return ERR_PTR(-EINVAL);
}
if (!ok) {
pr_err("i915_vma_compare failed to detect the difference!\n");
return ERR_PTR(-EINVAL);
}
return vma;
}
static int create_vmas(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, st_link) {
for (pinned = 0; pinned <= 1; pinned++) {
list_for_each_entry(ctx, contexts, link) {
struct i915_address_space *vm =
&ctx->ppgtt->base;
struct i915_vma *vma;
int err;
vma = checked_vma_instance(obj, vm, 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)
{
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;
IGT_TIMEOUT(end_time);
LIST_HEAD(contexts);
LIST_HEAD(objects);
int err;
/* Exercise creating many vma amonst many objections, checking the
* vma creation and lookup routines.
*/
no = 0;
for_each_prime_number(num_obj, ULONG_MAX - 1) {
for (; no < num_obj; no++) {
obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
if (IS_ERR(obj))
goto out;
list_add(&obj->st_link, &objects);
}
nc = 0;
for_each_prime_number(num_ctx, MAX_CONTEXT_HW_ID) {
for (; nc < num_ctx; nc++) {
ctx = mock_context(i915, "mock");
if (!ctx)
goto out;
list_move(&ctx->link, &contexts);
}
err = create_vmas(i915, &objects, &contexts);
if (err)
goto out;
if (igt_timeout(end_time,
"%s timed out: after %lu objects in %lu contexts\n",
__func__, no, nc))
goto end;
}
list_for_each_entry_safe(ctx, cn, &contexts, link)
mock_context_close(ctx);
}
end:
/* Final pass to lookup all created contexts */
err = create_vmas(i915, &objects, &contexts);
out:
list_for_each_entry_safe(ctx, cn, &contexts, link)
mock_context_close(ctx);
list_for_each_entry_safe(obj, on, &objects, st_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);
drm_dev_unref(&i915->drm);
return err;
}
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