summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/ttm/tests/ttm_tt_test.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/ttm/tests/ttm_tt_test.c')
-rw-r--r--drivers/gpu/drm/ttm/tests/ttm_tt_test.c169
1 files changed, 138 insertions, 31 deletions
diff --git a/drivers/gpu/drm/ttm/tests/ttm_tt_test.c b/drivers/gpu/drm/ttm/tests/ttm_tt_test.c
index fd4502c18de6..61ec6f580b62 100644
--- a/drivers/gpu/drm/ttm/tests/ttm_tt_test.c
+++ b/drivers/gpu/drm/ttm/tests/ttm_tt_test.c
@@ -11,23 +11,10 @@
struct ttm_tt_test_case {
const char *description;
- uint32_t size;
- uint32_t extra_pages_num;
+ u32 size;
+ u32 extra_pages_num;
};
-static int ttm_tt_test_init(struct kunit *test)
-{
- struct ttm_test_devices *priv;
-
- priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
- KUNIT_ASSERT_NOT_NULL(test, priv);
-
- priv = ttm_test_devices_all(test);
- test->priv = priv;
-
- return 0;
-}
-
static const struct ttm_tt_test_case ttm_tt_init_basic_cases[] = {
{
.description = "Page-aligned size",
@@ -54,16 +41,16 @@ static void ttm_tt_init_basic(struct kunit *test)
const struct ttm_tt_test_case *params = test->param_value;
struct ttm_buffer_object *bo;
struct ttm_tt *tt;
- uint32_t page_flags = TTM_TT_FLAG_ZERO_ALLOC;
+ u32 page_flags = TTM_TT_FLAG_ZERO_ALLOC;
enum ttm_caching caching = ttm_cached;
- uint32_t extra_pages = params->extra_pages_num;
+ u32 extra_pages = params->extra_pages_num;
int num_pages = params->size >> PAGE_SHIFT;
int err;
tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
KUNIT_ASSERT_NOT_NULL(test, tt);
- bo = ttm_bo_kunit_init(test, test->priv, params->size);
+ bo = ttm_bo_kunit_init(test, test->priv, params->size, NULL);
err = ttm_tt_init(tt, bo, page_flags, caching, extra_pages);
KUNIT_ASSERT_EQ(test, err, 0);
@@ -82,14 +69,14 @@ static void ttm_tt_init_misaligned(struct kunit *test)
struct ttm_buffer_object *bo;
struct ttm_tt *tt;
enum ttm_caching caching = ttm_cached;
- uint32_t size = SZ_8K;
+ u32 size = SZ_8K;
int num_pages = (size + SZ_4K) >> PAGE_SHIFT;
int err;
tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
KUNIT_ASSERT_NOT_NULL(test, tt);
- bo = ttm_bo_kunit_init(test, test->priv, size);
+ bo = ttm_bo_kunit_init(test, test->priv, size, NULL);
/* Make the object size misaligned */
bo->base.size += 1;
@@ -110,7 +97,7 @@ static void ttm_tt_fini_basic(struct kunit *test)
tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
KUNIT_ASSERT_NOT_NULL(test, tt);
- bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
err = ttm_tt_init(tt, bo, 0, caching, 0);
KUNIT_ASSERT_EQ(test, err, 0);
@@ -130,7 +117,7 @@ static void ttm_tt_fini_sg(struct kunit *test)
tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
KUNIT_ASSERT_NOT_NULL(test, tt);
- bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
err = ttm_sg_tt_init(tt, bo, 0, caching);
KUNIT_ASSERT_EQ(test, err, 0);
@@ -151,7 +138,7 @@ static void ttm_tt_fini_shmem(struct kunit *test)
tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
KUNIT_ASSERT_NOT_NULL(test, tt);
- bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
err = ttm_tt_init(tt, bo, 0, caching, 0);
KUNIT_ASSERT_EQ(test, err, 0);
@@ -168,7 +155,7 @@ static void ttm_tt_create_basic(struct kunit *test)
struct ttm_buffer_object *bo;
int err;
- bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
bo->type = ttm_bo_type_device;
dma_resv_lock(bo->base.resv, NULL);
@@ -187,7 +174,7 @@ static void ttm_tt_create_invalid_bo_type(struct kunit *test)
struct ttm_buffer_object *bo;
int err;
- bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
bo->type = ttm_bo_type_sg + 1;
dma_resv_lock(bo->base.resv, NULL);
@@ -208,7 +195,7 @@ static void ttm_tt_create_ttm_exists(struct kunit *test)
tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
KUNIT_ASSERT_NOT_NULL(test, tt);
- bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
err = ttm_tt_init(tt, bo, 0, caching, 0);
KUNIT_ASSERT_EQ(test, err, 0);
@@ -224,7 +211,7 @@ static void ttm_tt_create_ttm_exists(struct kunit *test)
}
static struct ttm_tt *ttm_tt_null_create(struct ttm_buffer_object *bo,
- uint32_t page_flags)
+ u32 page_flags)
{
return NULL;
}
@@ -239,7 +226,7 @@ static void ttm_tt_create_failed(struct kunit *test)
struct ttm_buffer_object *bo;
int err;
- bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
/* Update ttm_device_funcs so we don't alloc ttm_tt */
devs->ttm_dev->funcs = &ttm_dev_empty_funcs;
@@ -257,7 +244,7 @@ static void ttm_tt_destroy_basic(struct kunit *test)
struct ttm_buffer_object *bo;
int err;
- bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
dma_resv_lock(bo->base.resv, NULL);
err = ttm_tt_create(bo, false);
@@ -269,6 +256,120 @@ static void ttm_tt_destroy_basic(struct kunit *test)
ttm_tt_destroy(devs->ttm_dev, bo->ttm);
}
+static void ttm_tt_populate_null_ttm(struct kunit *test)
+{
+ const struct ttm_test_devices *devs = test->priv;
+ struct ttm_operation_ctx ctx = { };
+ int err;
+
+ err = ttm_tt_populate(devs->ttm_dev, NULL, &ctx);
+ KUNIT_ASSERT_EQ(test, err, -EINVAL);
+}
+
+static void ttm_tt_populate_populated_ttm(struct kunit *test)
+{
+ const struct ttm_test_devices *devs = test->priv;
+ struct ttm_operation_ctx ctx = { };
+ struct ttm_buffer_object *bo;
+ struct ttm_tt *tt;
+ struct page *populated_page;
+ int err;
+
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
+
+ tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, tt);
+
+ err = ttm_tt_init(tt, bo, 0, ttm_cached, 0);
+ KUNIT_ASSERT_EQ(test, err, 0);
+
+ err = ttm_tt_populate(devs->ttm_dev, tt, &ctx);
+ KUNIT_ASSERT_EQ(test, err, 0);
+ populated_page = *tt->pages;
+
+ err = ttm_tt_populate(devs->ttm_dev, tt, &ctx);
+ KUNIT_ASSERT_PTR_EQ(test, populated_page, *tt->pages);
+}
+
+static void ttm_tt_unpopulate_basic(struct kunit *test)
+{
+ const struct ttm_test_devices *devs = test->priv;
+ struct ttm_operation_ctx ctx = { };
+ struct ttm_buffer_object *bo;
+ struct ttm_tt *tt;
+ int err;
+
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
+
+ tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, tt);
+
+ err = ttm_tt_init(tt, bo, 0, ttm_cached, 0);
+ KUNIT_ASSERT_EQ(test, err, 0);
+
+ err = ttm_tt_populate(devs->ttm_dev, tt, &ctx);
+ KUNIT_ASSERT_EQ(test, err, 0);
+ KUNIT_ASSERT_TRUE(test, ttm_tt_is_populated(tt));
+
+ ttm_tt_unpopulate(devs->ttm_dev, tt);
+ KUNIT_ASSERT_FALSE(test, ttm_tt_is_populated(tt));
+}
+
+static void ttm_tt_unpopulate_empty_ttm(struct kunit *test)
+{
+ const struct ttm_test_devices *devs = test->priv;
+ struct ttm_buffer_object *bo;
+ struct ttm_tt *tt;
+ int err;
+
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
+
+ tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, tt);
+
+ err = ttm_tt_init(tt, bo, 0, ttm_cached, 0);
+ KUNIT_ASSERT_EQ(test, err, 0);
+
+ ttm_tt_unpopulate(devs->ttm_dev, tt);
+ /* Expect graceful handling of unpopulated TTs */
+}
+
+static void ttm_tt_swapin_basic(struct kunit *test)
+{
+ const struct ttm_test_devices *devs = test->priv;
+ int expected_num_pages = BO_SIZE >> PAGE_SHIFT;
+ struct ttm_operation_ctx ctx = { };
+ struct ttm_buffer_object *bo;
+ struct ttm_tt *tt;
+ int err, num_pages;
+
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE, NULL);
+
+ tt = kunit_kzalloc(test, sizeof(*tt), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, tt);
+
+ err = ttm_tt_init(tt, bo, 0, ttm_cached, 0);
+ KUNIT_ASSERT_EQ(test, err, 0);
+
+ err = ttm_tt_populate(devs->ttm_dev, tt, &ctx);
+ KUNIT_ASSERT_EQ(test, err, 0);
+ KUNIT_ASSERT_TRUE(test, ttm_tt_is_populated(tt));
+
+ num_pages = ttm_tt_swapout(devs->ttm_dev, tt, GFP_KERNEL);
+ KUNIT_ASSERT_EQ(test, num_pages, expected_num_pages);
+ KUNIT_ASSERT_NOT_NULL(test, tt->swap_storage);
+ KUNIT_ASSERT_TRUE(test, tt->page_flags & TTM_TT_FLAG_SWAPPED);
+
+ /* Swapout depopulates TT, allocate pages and then swap them in */
+ err = ttm_pool_alloc(&devs->ttm_dev->pool, tt, &ctx);
+ KUNIT_ASSERT_EQ(test, err, 0);
+
+ err = ttm_tt_swapin(tt);
+ KUNIT_ASSERT_EQ(test, err, 0);
+ KUNIT_ASSERT_NULL(test, tt->swap_storage);
+ KUNIT_ASSERT_FALSE(test, tt->page_flags & TTM_TT_FLAG_SWAPPED);
+}
+
static struct kunit_case ttm_tt_test_cases[] = {
KUNIT_CASE_PARAM(ttm_tt_init_basic, ttm_tt_init_basic_gen_params),
KUNIT_CASE(ttm_tt_init_misaligned),
@@ -280,16 +381,22 @@ static struct kunit_case ttm_tt_test_cases[] = {
KUNIT_CASE(ttm_tt_create_ttm_exists),
KUNIT_CASE(ttm_tt_create_failed),
KUNIT_CASE(ttm_tt_destroy_basic),
+ KUNIT_CASE(ttm_tt_populate_null_ttm),
+ KUNIT_CASE(ttm_tt_populate_populated_ttm),
+ KUNIT_CASE(ttm_tt_unpopulate_basic),
+ KUNIT_CASE(ttm_tt_unpopulate_empty_ttm),
+ KUNIT_CASE(ttm_tt_swapin_basic),
{}
};
static struct kunit_suite ttm_tt_test_suite = {
.name = "ttm_tt",
- .init = ttm_tt_test_init,
+ .init = ttm_test_devices_all_init,
.exit = ttm_test_devices_fini,
.test_cases = ttm_tt_test_cases,
};
kunit_test_suites(&ttm_tt_test_suite);
-MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("KUnit tests for ttm_tt APIs");
+MODULE_LICENSE("GPL and additional rights");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 23:04:17 +0000