Release 4.12 drivers/gpu/drm/i915/selftests/i915_gem_evict.c
/*
* 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 "../i915_selftest.h"
#include "mock_gem_device.h"
static int populate_ggtt(struct drm_i915_private *i915)
{
struct drm_i915_gem_object *obj;
u64 size;
for (size = 0;
size + I915_GTT_PAGE_SIZE <= i915->ggtt.base.total;
size += I915_GTT_PAGE_SIZE) {
struct i915_vma *vma;
obj = i915_gem_object_create_internal(i915, I915_GTT_PAGE_SIZE);
if (IS_ERR(obj))
return PTR_ERR(obj);
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0, 0);
if (IS_ERR(vma))
return PTR_ERR(vma);
}
if (!list_empty(&i915->mm.unbound_list)) {
size = 0;
list_for_each_entry(obj, &i915->mm.unbound_list, global_link)
size++;
pr_err("Found %lld objects unbound!\n", size);
return -EINVAL;
}
if (list_empty(&i915->ggtt.base.inactive_list)) {
pr_err("No objects on the GGTT inactive list!\n");
return -EINVAL;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 167 | 100.00% | 1 | 100.00% |
| Total | 167 | 100.00% | 1 | 100.00% |
static void unpin_ggtt(struct drm_i915_private *i915)
{
struct i915_vma *vma;
list_for_each_entry(vma, &i915->ggtt.base.inactive_list, vm_link)
i915_vma_unpin(vma);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static void cleanup_objects(struct drm_i915_private *i915)
{
struct drm_i915_gem_object *obj, *on;
list_for_each_entry_safe(obj, on, &i915->mm.unbound_list, global_link)
i915_gem_object_put(obj);
list_for_each_entry_safe(obj, on, &i915->mm.bound_list, global_link)
i915_gem_object_put(obj);
mutex_unlock(&i915->drm.struct_mutex);
i915_gem_drain_freed_objects(i915);
mutex_lock(&i915->drm.struct_mutex);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 74 | 100.00% | 1 | 100.00% |
| Total | 74 | 100.00% | 1 | 100.00% |
static int igt_evict_something(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_ggtt *ggtt = &i915->ggtt;
int err;
/* Fill the GGTT with pinned objects and try to evict one. */
err = populate_ggtt(i915);
if (err)
goto cleanup;
/* Everything is pinned, nothing should happen */
err = i915_gem_evict_something(&ggtt->base,
I915_GTT_PAGE_SIZE, 0, 0,
0, U64_MAX,
0);
if (err != -ENOSPC) {
pr_err("i915_gem_evict_something failed on a full GGTT with err=%d\n",
err);
goto cleanup;
}
unpin_ggtt(i915);
/* Everything is unpinned, we should be able to evict something */
err = i915_gem_evict_something(&ggtt->base,
I915_GTT_PAGE_SIZE, 0, 0,
0, U64_MAX,
0);
if (err) {
pr_err("i915_gem_evict_something failed on a full GGTT with err=%d\n",
err);
goto cleanup;
}
cleanup:
cleanup_objects(i915);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 141 | 100.00% | 1 | 100.00% |
| Total | 141 | 100.00% | 1 | 100.00% |
static int igt_overcommit(void *arg)
{
struct drm_i915_private *i915 = arg;
struct drm_i915_gem_object *obj;
struct i915_vma *vma;
int err;
/* Fill the GGTT with pinned objects and then try to pin one more.
* We expect it to fail.
*/
err = populate_ggtt(i915);
if (err)
goto cleanup;
obj = i915_gem_object_create_internal(i915, I915_GTT_PAGE_SIZE);
if (IS_ERR(obj)) {
err = PTR_ERR(obj);
goto cleanup;
}
list_move(&obj->global_link, &i915->mm.unbound_list);
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0, 0);
if (!IS_ERR(vma) || PTR_ERR(vma) != -ENOSPC) {
pr_err("Failed to evict+insert, i915_gem_object_ggtt_pin returned err=%d\n", (int)PTR_ERR(vma));
err = -EINVAL;
goto cleanup;
}
cleanup:
cleanup_objects(i915);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 152 | 100.00% | 1 | 100.00% |
| Total | 152 | 100.00% | 1 | 100.00% |
static int igt_evict_for_vma(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_ggtt *ggtt = &i915->ggtt;
struct drm_mm_node target = {
.start = 0,
.size = 4096,
};
int err;
/* Fill the GGTT with pinned objects and try to evict a range. */
err = populate_ggtt(i915);
if (err)
goto cleanup;
/* Everything is pinned, nothing should happen */
err = i915_gem_evict_for_node(&ggtt->base, &target, 0);
if (err != -ENOSPC) {
pr_err("i915_gem_evict_for_node on a full GGTT returned err=%d\n",
err);
goto cleanup;
}
unpin_ggtt(i915);
/* Everything is unpinned, we should be able to evict the node */
err = i915_gem_evict_for_node(&ggtt->base, &target, 0);
if (err) {
pr_err("i915_gem_evict_for_node returned err=%d\n",
err);
goto cleanup;
}
cleanup:
cleanup_objects(i915);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 143 | 100.00% | 1 | 100.00% |
| Total | 143 | 100.00% | 1 | 100.00% |
static void mock_color_adjust(const struct drm_mm_node *node,
unsigned long color,
u64 *start,
u64 *end)
{
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Matthew Auld | 23 | 100.00% | 1 | 100.00% |
| Total | 23 | 100.00% | 1 | 100.00% |
static int igt_evict_for_cache_color(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_ggtt *ggtt = &i915->ggtt;
const unsigned long flags = PIN_OFFSET_FIXED;
struct drm_mm_node target = {
.start = I915_GTT_PAGE_SIZE * 2,
.size = I915_GTT_PAGE_SIZE,
.color = I915_CACHE_LLC,
};
struct drm_i915_gem_object *obj;
struct i915_vma *vma;
int err;
/* Currently the use of color_adjust is limited to cache domains within
* the ggtt, and so the presence of mm.color_adjust is assumed to be
* i915_gtt_color_adjust throughout our driver, so using a mock color
* adjust will work just fine for our purposes.
*/
ggtt->base.mm.color_adjust = mock_color_adjust;
obj = i915_gem_object_create_internal(i915, I915_GTT_PAGE_SIZE);
if (IS_ERR(obj)) {
err = PTR_ERR(obj);
goto cleanup;
}
i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0,
I915_GTT_PAGE_SIZE | flags);
if (IS_ERR(vma)) {
pr_err("[0]i915_gem_object_ggtt_pin failed\n");
err = PTR_ERR(vma);
goto cleanup;
}
obj = i915_gem_object_create_internal(i915, I915_GTT_PAGE_SIZE);
if (IS_ERR(obj)) {
err = PTR_ERR(obj);
goto cleanup;
}
i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
/* Neighbouring; same colour - should fit */
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0,
(I915_GTT_PAGE_SIZE * 2) | flags);
if (IS_ERR(vma)) {
pr_err("[1]i915_gem_object_ggtt_pin failed\n");
err = PTR_ERR(vma);
goto cleanup;
}
i915_vma_unpin(vma);
/* Remove just the second vma */
err = i915_gem_evict_for_node(&ggtt->base, &target, 0);
if (err) {
pr_err("[0]i915_gem_evict_for_node returned err=%d\n", err);
goto cleanup;
}
/* Attempt to remove the first *pinned* vma, by removing the (empty)
* neighbour -- this should fail.
*/
target.color = I915_CACHE_L3_LLC;
err = i915_gem_evict_for_node(&ggtt->base, &target, 0);
if (!err) {
pr_err("[1]i915_gem_evict_for_node returned err=%d\n", err);
err = -EINVAL;
goto cleanup;
}
err = 0;
cleanup:
unpin_ggtt(i915);
cleanup_objects(i915);
ggtt->base.mm.color_adjust = NULL;
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Matthew Auld | 348 | 100.00% | 1 | 100.00% |
| Total | 348 | 100.00% | 1 | 100.00% |
static int igt_evict_vm(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_ggtt *ggtt = &i915->ggtt;
int err;
/* Fill the GGTT with pinned objects and try to evict everything. */
err = populate_ggtt(i915);
if (err)
goto cleanup;
/* Everything is pinned, nothing should happen */
err = i915_gem_evict_vm(&ggtt->base, false);
if (err) {
pr_err("i915_gem_evict_vm on a full GGTT returned err=%d]\n",
err);
goto cleanup;
}
unpin_ggtt(i915);
err = i915_gem_evict_vm(&ggtt->base, false);
if (err) {
pr_err("i915_gem_evict_vm on a full GGTT returned err=%d]\n",
err);
goto cleanup;
}
cleanup:
cleanup_objects(i915);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 117 | 100.00% | 1 | 100.00% |
| Total | 117 | 100.00% | 1 | 100.00% |
int i915_gem_evict_mock_selftests(void)
{
static const struct i915_subtest tests[] = {
SUBTEST(igt_evict_something),
SUBTEST(igt_evict_for_vma),
SUBTEST(igt_evict_for_cache_color),
SUBTEST(igt_evict_vm),
SUBTEST(igt_overcommit),
};
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 98 | 95.15% | 1 | 50.00% |
| Matthew Auld | 5 | 4.85% | 1 | 50.00% |
| Total | 103 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chris Wilson | 928 | 71.17% | 1 | 50.00% |
| Matthew Auld | 376 | 28.83% | 1 | 50.00% |
| Total | 1304 | 100.00% | 2 | 100.00% |
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