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// SPDX-License-Identifier: GPL-2.0+
#include <kunit/test.h>
#include "../vkms_config.h"
MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
static size_t vkms_config_get_num_planes(struct vkms_config *config)
{
struct vkms_config_plane *plane_cfg;
size_t count = 0;
vkms_config_for_each_plane(config, plane_cfg)
count++;
return count;
}
static struct vkms_config_plane *get_first_plane(struct vkms_config *config)
{
struct vkms_config_plane *plane_cfg;
vkms_config_for_each_plane(config, plane_cfg)
return plane_cfg;
return NULL;
}
static struct vkms_config_crtc *get_first_crtc(struct vkms_config *config)
{
struct vkms_config_crtc *crtc_cfg;
vkms_config_for_each_crtc(config, crtc_cfg)
return crtc_cfg;
return NULL;
}
struct default_config_case {
bool enable_cursor;
bool enable_writeback;
bool enable_overlay;
};
static void vkms_config_test_empty_config(struct kunit *test)
{
struct vkms_config *config;
const char *dev_name = "test";
config = vkms_config_create(dev_name);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config);
/* The dev_name string and the config have different lifetimes */
dev_name = NULL;
KUNIT_EXPECT_STREQ(test, vkms_config_get_device_name(config), "test");
KUNIT_EXPECT_EQ(test, vkms_config_get_num_planes(config), 0);
KUNIT_EXPECT_EQ(test, vkms_config_get_num_crtcs(config), 0);
KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config));
vkms_config_destroy(config);
}
static struct default_config_case default_config_cases[] = {
{ false, false, false },
{ true, false, false },
{ true, true, false },
{ true, false, true },
{ false, true, false },
{ false, true, true },
{ false, false, true },
{ true, true, true },
};
KUNIT_ARRAY_PARAM(default_config, default_config_cases, NULL);
static void vkms_config_test_default_config(struct kunit *test)
{
const struct default_config_case *params = test->param_value;
struct vkms_config *config;
struct vkms_config_plane *plane_cfg;
struct vkms_config_crtc *crtc_cfg;
int n_primaries = 0;
int n_cursors = 0;
int n_overlays = 0;
config = vkms_config_default_create(params->enable_cursor,
params->enable_writeback,
params->enable_overlay);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config);
/* Planes */
vkms_config_for_each_plane(config, plane_cfg) {
switch (vkms_config_plane_get_type(plane_cfg)) {
case DRM_PLANE_TYPE_PRIMARY:
n_primaries++;
break;
case DRM_PLANE_TYPE_CURSOR:
n_cursors++;
break;
case DRM_PLANE_TYPE_OVERLAY:
n_overlays++;
break;
default:
KUNIT_FAIL_AND_ABORT(test, "Unknown plane type");
}
}
KUNIT_EXPECT_EQ(test, n_primaries, 1);
KUNIT_EXPECT_EQ(test, n_cursors, params->enable_cursor ? 1 : 0);
KUNIT_EXPECT_EQ(test, n_overlays, params->enable_overlay ? 8 : 0);
/* CRTCs */
KUNIT_EXPECT_EQ(test, vkms_config_get_num_crtcs(config), 1);
crtc_cfg = get_first_crtc(config);
KUNIT_EXPECT_EQ(test, vkms_config_crtc_get_writeback(crtc_cfg),
params->enable_writeback);
KUNIT_EXPECT_TRUE(test, vkms_config_is_valid(config));
vkms_config_destroy(config);
}
static void vkms_config_test_get_planes(struct kunit *test)
{
struct vkms_config *config;
struct vkms_config_plane *plane_cfg;
struct vkms_config_plane *plane_cfg1, *plane_cfg2;
int n_planes = 0;
config = vkms_config_create("test");
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config);
vkms_config_for_each_plane(config, plane_cfg)
n_planes++;
KUNIT_ASSERT_EQ(test, n_planes, 0);
plane_cfg1 = vkms_config_create_plane(config);
vkms_config_for_each_plane(config, plane_cfg) {
n_planes++;
if (plane_cfg != plane_cfg1)
KUNIT_FAIL(test, "Unexpected plane");
}
KUNIT_ASSERT_EQ(test, n_planes, 1);
n_planes = 0;
plane_cfg2 = vkms_config_create_plane(config);
vkms_config_for_each_plane(config, plane_cfg) {
n_planes++;
if (plane_cfg != plane_cfg1 && plane_cfg != plane_cfg2)
KUNIT_FAIL(test, "Unexpected plane");
}
KUNIT_ASSERT_EQ(test, n_planes, 2);
n_planes = 0;
vkms_config_destroy_plane(plane_cfg1);
vkms_config_for_each_plane(config, plane_cfg) {
n_planes++;
if (plane_cfg != plane_cfg2)
KUNIT_FAIL(test, "Unexpected plane");
}
KUNIT_ASSERT_EQ(test, n_planes, 1);
vkms_config_destroy(config);
}
static void vkms_config_test_get_crtcs(struct kunit *test)
{
struct vkms_config *config;
struct vkms_config_crtc *crtc_cfg;
struct vkms_config_crtc *crtc_cfg1, *crtc_cfg2;
config = vkms_config_create("test");
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config);
KUNIT_ASSERT_EQ(test, vkms_config_get_num_crtcs(config), 0);
vkms_config_for_each_crtc(config, crtc_cfg)
KUNIT_FAIL(test, "Unexpected CRTC");
crtc_cfg1 = vkms_config_create_crtc(config);
KUNIT_ASSERT_EQ(test, vkms_config_get_num_crtcs(config), 1);
vkms_config_for_each_crtc(config, crtc_cfg) {
if (crtc_cfg != crtc_cfg1)
KUNIT_FAIL(test, "Unexpected CRTC");
}
crtc_cfg2 = vkms_config_create_crtc(config);
KUNIT_ASSERT_EQ(test, vkms_config_get_num_crtcs(config), 2);
vkms_config_for_each_crtc(config, crtc_cfg) {
if (crtc_cfg != crtc_cfg1 && crtc_cfg != crtc_cfg2)
KUNIT_FAIL(test, "Unexpected CRTC");
}
vkms_config_destroy_crtc(config, crtc_cfg2);
KUNIT_ASSERT_EQ(test, vkms_config_get_num_crtcs(config), 1);
vkms_config_for_each_crtc(config, crtc_cfg) {
if (crtc_cfg != crtc_cfg1)
KUNIT_FAIL(test, "Unexpected CRTC");
}
vkms_config_destroy(config);
}
static void vkms_config_test_invalid_plane_number(struct kunit *test)
{
struct vkms_config *config;
struct vkms_config_plane *plane_cfg;
int n;
config = vkms_config_default_create(false, false, false);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config);
/* Invalid: No planes */
plane_cfg = get_first_plane(config);
vkms_config_destroy_plane(plane_cfg);
KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config));
/* Invalid: Too many planes */
for (n = 0; n <= 32; n++)
vkms_config_create_plane(config);
KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config));
vkms_config_destroy(config);
}
static void vkms_config_test_valid_plane_type(struct kunit *test)
{
struct vkms_config *config;
struct vkms_config_plane *plane_cfg;
config = vkms_config_default_create(false, false, false);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config);
plane_cfg = get_first_plane(config);
vkms_config_destroy_plane(plane_cfg);
/* Invalid: No primary plane */
plane_cfg = vkms_config_create_plane(config);
vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_OVERLAY);
KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config));
/* Invalid: Multiple primary planes */
plane_cfg = vkms_config_create_plane(config);
vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_PRIMARY);
plane_cfg = vkms_config_create_plane(config);
vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_PRIMARY);
KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config));
/* Valid: One primary plane */
vkms_config_destroy_plane(plane_cfg);
KUNIT_EXPECT_TRUE(test, vkms_config_is_valid(config));
/* Invalid: Multiple cursor planes */
plane_cfg = vkms_config_create_plane(config);
vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_CURSOR);
plane_cfg = vkms_config_create_plane(config);
vkms_config_plane_set_type(plane_cfg, DRM_PLANE_TYPE_CURSOR);
KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config));
/* Valid: One primary and one cursor plane */
vkms_config_destroy_plane(plane_cfg);
KUNIT_EXPECT_TRUE(test, vkms_config_is_valid(config));
vkms_config_destroy(config);
}
static void vkms_config_test_invalid_crtc_number(struct kunit *test)
{
struct vkms_config *config;
struct vkms_config_crtc *crtc_cfg;
int n;
config = vkms_config_default_create(false, false, false);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, config);
/* Invalid: No CRTCs */
crtc_cfg = get_first_crtc(config);
vkms_config_destroy_crtc(config, crtc_cfg);
KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config));
/* Invalid: Too many CRTCs */
for (n = 0; n <= 32; n++)
vkms_config_create_crtc(config);
KUNIT_EXPECT_FALSE(test, vkms_config_is_valid(config));
vkms_config_destroy(config);
}
static struct kunit_case vkms_config_test_cases[] = {
KUNIT_CASE(vkms_config_test_empty_config),
KUNIT_CASE_PARAM(vkms_config_test_default_config,
default_config_gen_params),
KUNIT_CASE(vkms_config_test_get_planes),
KUNIT_CASE(vkms_config_test_get_crtcs),
KUNIT_CASE(vkms_config_test_invalid_plane_number),
KUNIT_CASE(vkms_config_test_valid_plane_type),
KUNIT_CASE(vkms_config_test_invalid_crtc_number),
{}
};
static struct kunit_suite vkms_config_test_suite = {
.name = "vkms-config",
.test_cases = vkms_config_test_cases,
};
kunit_test_suite(vkms_config_test_suite);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Kunit test for vkms config utility");
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