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Diffstat (limited to 'drivers/gpu/drm/vc4/tests')
-rw-r--r--drivers/gpu/drm/vc4/tests/vc4_mock_output.c62
-rw-r--r--drivers/gpu/drm/vc4/tests/vc4_test_pv_muxing.c154
2 files changed, 189 insertions, 27 deletions
diff --git a/drivers/gpu/drm/vc4/tests/vc4_mock_output.c b/drivers/gpu/drm/vc4/tests/vc4_mock_output.c
index e70d7c3076ac..577d9a956369 100644
--- a/drivers/gpu/drm/vc4/tests/vc4_mock_output.c
+++ b/drivers/gpu/drm/vc4/tests/vc4_mock_output.c
@@ -61,6 +61,19 @@ static const struct drm_display_mode default_mode = {
DRM_SIMPLE_MODE(640, 480, 64, 48)
};
+/**
+ * vc4_mock_atomic_add_output() - Enables an output in a state
+ * @test: The test context object
+ * @state: Atomic state to enable the output in.
+ * @type: Type of the output encoder
+ *
+ * Adds an output CRTC and connector to a state, and enables them.
+ *
+ * Returns:
+ * 0 on success, a negative error code on failure. If the error is
+ * EDEADLK, the entire atomic sequence must be restarted. All other
+ * errors are fatal.
+ */
int vc4_mock_atomic_add_output(struct kunit *test,
struct drm_atomic_state *state,
enum vc4_encoder_type type)
@@ -75,30 +88,49 @@ int vc4_mock_atomic_add_output(struct kunit *test,
int ret;
encoder = vc4_find_encoder_by_type(drm, type);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, encoder);
+ if (!encoder)
+ return -ENODEV;
crtc = vc4_find_crtc_for_encoder(test, drm, encoder);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc);
+ if (!crtc)
+ return -ENODEV;
output = encoder_to_vc4_dummy_output(encoder);
conn = &output->connector;
conn_state = drm_atomic_get_connector_state(state, conn);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state);
+ if (IS_ERR(conn_state))
+ return PTR_ERR(conn_state);
ret = drm_atomic_set_crtc_for_connector(conn_state, crtc);
- KUNIT_EXPECT_EQ(test, ret, 0);
+ if (ret)
+ return ret;
crtc_state = drm_atomic_get_crtc_state(state, crtc);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
ret = drm_atomic_set_mode_for_crtc(crtc_state, &default_mode);
- KUNIT_EXPECT_EQ(test, ret, 0);
+ if (ret)
+ return ret;
crtc_state->active = true;
return 0;
}
+/**
+ * vc4_mock_atomic_del_output() - Disables an output in a state
+ * @test: The test context object
+ * @state: Atomic state to disable the output in.
+ * @type: Type of the output encoder
+ *
+ * Adds an output CRTC and connector to a state, and disables them.
+ *
+ * Returns:
+ * 0 on success, a negative error code on failure. If the error is
+ * EDEADLK, the entire atomic sequence must be restarted. All other
+ * errors are fatal.
+ */
int vc4_mock_atomic_del_output(struct kunit *test,
struct drm_atomic_state *state,
enum vc4_encoder_type type)
@@ -113,26 +145,32 @@ int vc4_mock_atomic_del_output(struct kunit *test,
int ret;
encoder = vc4_find_encoder_by_type(drm, type);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, encoder);
+ if (!encoder)
+ return -ENODEV;
crtc = vc4_find_crtc_for_encoder(test, drm, encoder);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc);
+ if (!crtc)
+ return -ENODEV;
crtc_state = drm_atomic_get_crtc_state(state, crtc);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
crtc_state->active = false;
ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
- KUNIT_ASSERT_EQ(test, ret, 0);
+ if (ret)
+ return ret;
output = encoder_to_vc4_dummy_output(encoder);
conn = &output->connector;
conn_state = drm_atomic_get_connector_state(state, conn);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state);
+ if (IS_ERR(conn_state))
+ return PTR_ERR(conn_state);
ret = drm_atomic_set_crtc_for_connector(conn_state, NULL);
- KUNIT_ASSERT_EQ(test, ret, 0);
+ if (ret)
+ return ret;
return 0;
}
diff --git a/drivers/gpu/drm/vc4/tests/vc4_test_pv_muxing.c b/drivers/gpu/drm/vc4/tests/vc4_test_pv_muxing.c
index 992e8f5c5c6e..d1f694029169 100644
--- a/drivers/gpu/drm/vc4/tests/vc4_test_pv_muxing.c
+++ b/drivers/gpu/drm/vc4/tests/vc4_test_pv_muxing.c
@@ -20,7 +20,6 @@
struct pv_muxing_priv {
struct vc4_dev *vc4;
- struct drm_atomic_state *state;
};
static bool check_fifo_conflict(struct kunit *test,
@@ -677,18 +676,41 @@ static void drm_vc4_test_pv_muxing(struct kunit *test)
{
const struct pv_muxing_param *params = test->param_value;
const struct pv_muxing_priv *priv = test->priv;
- struct drm_atomic_state *state = priv->state;
+ struct drm_modeset_acquire_ctx ctx;
+ struct drm_atomic_state *state;
+ struct drm_device *drm;
+ struct vc4_dev *vc4;
unsigned int i;
int ret;
+ drm_modeset_acquire_init(&ctx, 0);
+
+ vc4 = priv->vc4;
+ drm = &vc4->base;
+
+retry:
+ state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
for (i = 0; i < params->nencoders; i++) {
enum vc4_encoder_type enc_type = params->encoders[i];
ret = vc4_mock_atomic_add_output(test, state, enc_type);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
}
ret = drm_atomic_check_only(state);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry;
+ }
KUNIT_EXPECT_EQ(test, ret, 0);
KUNIT_EXPECT_TRUE(test,
@@ -700,33 +722,61 @@ static void drm_vc4_test_pv_muxing(struct kunit *test)
KUNIT_EXPECT_TRUE(test, check_channel_for_encoder(test, state, enc_type,
params->check_fn));
}
+
+ drm_modeset_drop_locks(&ctx);
+ drm_modeset_acquire_fini(&ctx);
}
static void drm_vc4_test_pv_muxing_invalid(struct kunit *test)
{
const struct pv_muxing_param *params = test->param_value;
const struct pv_muxing_priv *priv = test->priv;
- struct drm_atomic_state *state = priv->state;
+ struct drm_modeset_acquire_ctx ctx;
+ struct drm_atomic_state *state;
+ struct drm_device *drm;
+ struct vc4_dev *vc4;
unsigned int i;
int ret;
+ drm_modeset_acquire_init(&ctx, 0);
+
+ vc4 = priv->vc4;
+ drm = &vc4->base;
+
+retry:
+ state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
+
for (i = 0; i < params->nencoders; i++) {
enum vc4_encoder_type enc_type = params->encoders[i];
ret = vc4_mock_atomic_add_output(test, state, enc_type);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
}
ret = drm_atomic_check_only(state);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry;
+ }
KUNIT_EXPECT_LT(test, ret, 0);
+
+ drm_modeset_drop_locks(&ctx);
+ drm_modeset_acquire_fini(&ctx);
}
static int vc4_pv_muxing_test_init(struct kunit *test)
{
const struct pv_muxing_param *params = test->param_value;
- struct drm_modeset_acquire_ctx ctx;
struct pv_muxing_priv *priv;
- struct drm_device *drm;
struct vc4_dev *vc4;
priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
@@ -737,15 +787,6 @@ static int vc4_pv_muxing_test_init(struct kunit *test)
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vc4);
priv->vc4 = vc4;
- drm_modeset_acquire_init(&ctx, 0);
-
- drm = &vc4->base;
- priv->state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->state);
-
- drm_modeset_drop_locks(&ctx);
- drm_modeset_acquire_fini(&ctx);
-
return 0;
}
@@ -800,13 +841,26 @@ static void drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable(struct kunit *tes
drm_modeset_acquire_init(&ctx, 0);
drm = &vc4->base;
+retry_first:
state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI0);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_first;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
ret = drm_atomic_check_only(state);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_first;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
new_hvs_state = vc4_hvs_get_new_global_state(state);
@@ -823,13 +877,26 @@ static void drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable(struct kunit *tes
ret = drm_atomic_helper_swap_state(state, false);
KUNIT_ASSERT_EQ(test, ret, 0);
+retry_second:
state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI1);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_second;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
ret = drm_atomic_check_only(state);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_second;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
new_hvs_state = vc4_hvs_get_new_global_state(state);
@@ -874,16 +941,35 @@ static void drm_test_vc5_pv_muxing_bugs_stable_fifo(struct kunit *test)
drm_modeset_acquire_init(&ctx, 0);
drm = &vc4->base;
+retry_first:
state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI0);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_first;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI1);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_first;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
ret = drm_atomic_check_only(state);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_first;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
new_hvs_state = vc4_hvs_get_new_global_state(state);
@@ -908,13 +994,26 @@ static void drm_test_vc5_pv_muxing_bugs_stable_fifo(struct kunit *test)
ret = drm_atomic_helper_swap_state(state, false);
KUNIT_ASSERT_EQ(test, ret, 0);
+retry_second:
state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
ret = vc4_mock_atomic_del_output(test, state, VC4_ENCODER_TYPE_HDMI0);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_second;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
ret = drm_atomic_check_only(state);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_second;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
new_hvs_state = vc4_hvs_get_new_global_state(state);
@@ -968,25 +1067,50 @@ drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable_too_many_crtc_state(struct ku
drm_modeset_acquire_init(&ctx, 0);
drm = &vc4->base;
+retry_first:
state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI0);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_first;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
ret = drm_atomic_check_only(state);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_first;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
-
ret = drm_atomic_helper_swap_state(state, false);
KUNIT_ASSERT_EQ(test, ret, 0);
+retry_second:
state = drm_kunit_helper_atomic_state_alloc(test, drm, &ctx);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state);
ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI1);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_second;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
ret = drm_atomic_check_only(state);
+ if (ret == -EDEADLK) {
+ drm_atomic_state_clear(state);
+ ret = drm_modeset_backoff(&ctx);
+ if (!ret)
+ goto retry_second;
+ }
KUNIT_ASSERT_EQ(test, ret, 0);
new_vc4_crtc_state = get_vc4_crtc_state_for_encoder(test, state,
generated by cgit v1.2.3 (git 2.39.0) at 2025-06-01 21:32:23 +0300