[PATCH 05/42] drm/i915/selftests: Track evict objects explicitly
Chris Wilson
chris at chris-wilson.co.uk
Mon Jan 21 20:57:25 UTC 2019
During review of commit 71fc448c1aaf ("drm/i915/selftests: Make evict
tolerant of foreign objects"), Matthew mentioned it would be better if
we explicitly tracked the objects we created. We have an obj->st_link
hook for this purpose, so add the corresponding list of objects and
reduce our loops to only consider our own list.
References: 71fc448c1aaf ("drm/i915/selftests: Make evict tolerant of foreign objects")
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
.../gpu/drm/i915/selftests/i915_gem_evict.c | 114 +++++++++---------
1 file changed, 55 insertions(+), 59 deletions(-)
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
index 543d618c152b..d0553bc69705 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
@@ -29,25 +29,21 @@
#include "mock_drm.h"
#include "mock_gem_device.h"
-static int populate_ggtt(struct drm_i915_private *i915)
+static void quirk_add(struct drm_i915_gem_object *obj,
+ struct list_head *objects)
+{
+ /* quirk is only for live tiled objects, use it to declare ownership */
+ GEM_BUG_ON(obj->mm.quirked);
+ obj->mm.quirked = true;
+ list_add(&obj->st_link, objects);
+}
+
+static int populate_ggtt(struct drm_i915_private *i915,
+ struct list_head *objects)
{
- struct drm_i915_gem_object *obj, *on;
- unsigned long expected_unbound, expected_bound;
unsigned long unbound, bound, count;
+ struct drm_i915_gem_object *obj;
u64 size;
- int err;
-
- expected_unbound = 0;
- list_for_each_entry(obj, &i915->mm.unbound_list, mm.link) {
- i915_gem_object_get(obj);
- expected_unbound++;
- }
-
- expected_bound = 0;
- list_for_each_entry(obj, &i915->mm.bound_list, mm.link) {
- i915_gem_object_get(obj);
- expected_bound++;
- }
count = 0;
for (size = 0;
@@ -56,38 +52,36 @@ static int populate_ggtt(struct drm_i915_private *i915)
struct i915_vma *vma;
obj = i915_gem_object_create_internal(i915, I915_GTT_PAGE_SIZE);
- if (IS_ERR(obj)) {
- err = PTR_ERR(obj);
- goto cleanup;
- }
+ if (IS_ERR(obj))
+ return PTR_ERR(obj);
+
+ quirk_add(obj, objects);
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0, 0);
- if (IS_ERR(vma)) {
- err = PTR_ERR(vma);
- goto cleanup;
- }
+ if (IS_ERR(vma))
+ return PTR_ERR(vma);
count++;
}
unbound = 0;
list_for_each_entry(obj, &i915->mm.unbound_list, mm.link)
- unbound++;
- if (unbound != expected_unbound) {
- pr_err("%s: Found %lu objects unbound, expected %lu!\n",
- __func__, unbound, expected_unbound);
- err = -EINVAL;
- goto cleanup;
+ if (obj->mm.quirked)
+ unbound++;
+ if (unbound) {
+ pr_err("%s: Found %lu objects unbound, expected %u!\n",
+ __func__, unbound, 0);
+ return -EINVAL;
}
bound = 0;
list_for_each_entry(obj, &i915->mm.bound_list, mm.link)
- bound++;
- if (bound != expected_bound + count) {
+ if (obj->mm.quirked)
+ bound++;
+ if (bound != count) {
pr_err("%s: Found %lu objects bound, expected %lu!\n",
- __func__, bound, expected_bound + count);
- err = -EINVAL;
- goto cleanup;
+ __func__, bound, count);
+ return -EINVAL;
}
if (list_empty(&i915->ggtt.vm.inactive_list)) {
@@ -96,15 +90,6 @@ static int populate_ggtt(struct drm_i915_private *i915)
}
return 0;
-
-cleanup:
- list_for_each_entry_safe(obj, on, &i915->mm.unbound_list, mm.link)
- i915_gem_object_put(obj);
-
- list_for_each_entry_safe(obj, on, &i915->mm.bound_list, mm.link)
- i915_gem_object_put(obj);
-
- return err;
}
static void unpin_ggtt(struct drm_i915_private *i915)
@@ -112,18 +97,20 @@ static void unpin_ggtt(struct drm_i915_private *i915)
struct i915_vma *vma;
list_for_each_entry(vma, &i915->ggtt.vm.inactive_list, vm_link)
- i915_vma_unpin(vma);
+ if (vma->obj->mm.quirked)
+ i915_vma_unpin(vma);
}
-static void cleanup_objects(struct drm_i915_private *i915)
+static void cleanup_objects(struct drm_i915_private *i915,
+ struct list_head *list)
{
struct drm_i915_gem_object *obj, *on;
- list_for_each_entry_safe(obj, on, &i915->mm.unbound_list, mm.link)
- i915_gem_object_put(obj);
-
- list_for_each_entry_safe(obj, on, &i915->mm.bound_list, mm.link)
+ list_for_each_entry_safe(obj, on, list, st_link) {
+ GEM_BUG_ON(!obj->mm.quirked);
+ obj->mm.quirked = false;
i915_gem_object_put(obj);
+ }
mutex_unlock(&i915->drm.struct_mutex);
@@ -136,11 +123,12 @@ static int igt_evict_something(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_ggtt *ggtt = &i915->ggtt;
+ LIST_HEAD(objects);
int err;
/* Fill the GGTT with pinned objects and try to evict one. */
- err = populate_ggtt(i915);
+ err = populate_ggtt(i915, &objects);
if (err)
goto cleanup;
@@ -169,7 +157,7 @@ static int igt_evict_something(void *arg)
}
cleanup:
- cleanup_objects(i915);
+ cleanup_objects(i915, &objects);
return err;
}
@@ -178,13 +166,14 @@ static int igt_overcommit(void *arg)
struct drm_i915_private *i915 = arg;
struct drm_i915_gem_object *obj;
struct i915_vma *vma;
+ LIST_HEAD(objects);
int err;
/* Fill the GGTT with pinned objects and then try to pin one more.
* We expect it to fail.
*/
- err = populate_ggtt(i915);
+ err = populate_ggtt(i915, &objects);
if (err)
goto cleanup;
@@ -194,6 +183,8 @@ static int igt_overcommit(void *arg)
goto cleanup;
}
+ quirk_add(obj, &objects);
+
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));
@@ -202,7 +193,7 @@ static int igt_overcommit(void *arg)
}
cleanup:
- cleanup_objects(i915);
+ cleanup_objects(i915, &objects);
return err;
}
@@ -214,11 +205,12 @@ static int igt_evict_for_vma(void *arg)
.start = 0,
.size = 4096,
};
+ LIST_HEAD(objects);
int err;
/* Fill the GGTT with pinned objects and try to evict a range. */
- err = populate_ggtt(i915);
+ err = populate_ggtt(i915, &objects);
if (err)
goto cleanup;
@@ -241,7 +233,7 @@ static int igt_evict_for_vma(void *arg)
}
cleanup:
- cleanup_objects(i915);
+ cleanup_objects(i915, &objects);
return err;
}
@@ -264,6 +256,7 @@ static int igt_evict_for_cache_color(void *arg)
};
struct drm_i915_gem_object *obj;
struct i915_vma *vma;
+ LIST_HEAD(objects);
int err;
/* Currently the use of color_adjust is limited to cache domains within
@@ -279,6 +272,7 @@ static int igt_evict_for_cache_color(void *arg)
goto cleanup;
}
i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
+ quirk_add(obj, &objects);
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0,
I915_GTT_PAGE_SIZE | flags);
@@ -294,6 +288,7 @@ static int igt_evict_for_cache_color(void *arg)
goto cleanup;
}
i915_gem_object_set_cache_level(obj, I915_CACHE_LLC);
+ quirk_add(obj, &objects);
/* Neighbouring; same colour - should fit */
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0,
@@ -329,7 +324,7 @@ static int igt_evict_for_cache_color(void *arg)
cleanup:
unpin_ggtt(i915);
- cleanup_objects(i915);
+ cleanup_objects(i915, &objects);
ggtt->vm.mm.color_adjust = NULL;
return err;
}
@@ -338,11 +333,12 @@ static int igt_evict_vm(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_ggtt *ggtt = &i915->ggtt;
+ LIST_HEAD(objects);
int err;
/* Fill the GGTT with pinned objects and try to evict everything. */
- err = populate_ggtt(i915);
+ err = populate_ggtt(i915, &objects);
if (err)
goto cleanup;
@@ -364,7 +360,7 @@ static int igt_evict_vm(void *arg)
}
cleanup:
- cleanup_objects(i915);
+ cleanup_objects(i915, &objects);
return err;
}
--
2.20.1
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