diff options
Diffstat (limited to 'drivers/gpu/drm/vc4/tests/vc4_test_pv_muxing.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/tests/vc4_test_pv_muxing.c | 115 |
1 files changed, 42 insertions, 73 deletions
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 ae0bd0f81698..61622e951031 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_modeset_acquire_ctx ctx; struct drm_atomic_state *state; }; @@ -725,7 +724,7 @@ static void drm_vc4_test_pv_muxing_invalid(struct kunit *test) static int vc4_pv_muxing_test_init(struct kunit *test) { const struct pv_muxing_param *params = test->param_value; - struct drm_atomic_state *state; + struct drm_modeset_acquire_ctx *ctx; struct pv_muxing_priv *priv; struct drm_device *drm; struct vc4_dev *vc4; @@ -738,33 +737,16 @@ 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(&priv->ctx, 0); + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); drm = &vc4->base; - state = drm_atomic_state_alloc(drm); - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); - - state->acquire_ctx = &priv->ctx; - - priv->state = state; + priv->state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->state); return 0; } -static void vc4_pv_muxing_test_exit(struct kunit *test) -{ - struct pv_muxing_priv *priv = test->priv; - struct vc4_dev *vc4 = priv->vc4; - struct drm_device *drm = &vc4->base; - struct drm_atomic_state *state = priv->state; - - drm_atomic_state_put(state); - drm_modeset_drop_locks(&priv->ctx); - drm_modeset_acquire_fini(&priv->ctx); - drm_dev_unregister(drm); - drm_kunit_helper_free_device(test, vc4->dev); -} - static struct kunit_case vc4_pv_muxing_tests[] = { KUNIT_CASE_PARAM(drm_vc4_test_pv_muxing, vc4_test_pv_muxing_gen_params), @@ -776,7 +758,6 @@ static struct kunit_case vc4_pv_muxing_tests[] = { static struct kunit_suite vc4_pv_muxing_test_suite = { .name = "vc4-pv-muxing-combinations", .init = vc4_pv_muxing_test_init, - .exit = vc4_pv_muxing_test_exit, .test_cases = vc4_pv_muxing_tests, }; @@ -791,7 +772,6 @@ static struct kunit_case vc5_pv_muxing_tests[] = { static struct kunit_suite vc5_pv_muxing_test_suite = { .name = "vc5-pv-muxing-combinations", .init = vc4_pv_muxing_test_init, - .exit = vc4_pv_muxing_test_exit, .test_cases = vc5_pv_muxing_tests, }; @@ -802,7 +782,7 @@ static struct kunit_suite vc5_pv_muxing_test_suite = { */ static void drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable(struct kunit *test) { - struct drm_modeset_acquire_ctx ctx; + struct drm_modeset_acquire_ctx *ctx; struct drm_atomic_state *state; struct vc4_crtc_state *new_vc4_crtc_state; struct vc4_hvs_state *new_hvs_state; @@ -815,14 +795,13 @@ static void drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable(struct kunit *tes vc4 = vc5_mock_device(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vc4); - drm_modeset_acquire_init(&ctx, 0); + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); drm = &vc4->base; - state = drm_atomic_state_alloc(drm); + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); - state->acquire_ctx = &ctx; - ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI0); KUNIT_ASSERT_EQ(test, ret, 0); @@ -843,13 +822,9 @@ 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); - drm_atomic_state_put(state); - - state = drm_atomic_state_alloc(drm); + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); - state->acquire_ctx = &ctx; - ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI1); KUNIT_ASSERT_EQ(test, ret, 0); @@ -868,17 +843,18 @@ static void drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable(struct kunit *tes KUNIT_ASSERT_TRUE(test, new_hvs_state->fifo_state[hdmi1_channel].in_use); KUNIT_EXPECT_NE(test, hdmi0_channel, hdmi1_channel); - - drm_atomic_state_put(state); - drm_modeset_drop_locks(&ctx); - drm_modeset_acquire_fini(&ctx); - drm_dev_unregister(drm); - drm_kunit_helper_free_device(test, vc4->dev); } +/* + * This test makes sure that we never change the FIFO of an active HVS + * channel if we disable a FIFO with a lower index. + * + * Doing so would result in a FIFO stall and would disrupt an output + * supposed to be unaffected by the commit. + */ static void drm_test_vc5_pv_muxing_bugs_stable_fifo(struct kunit *test) { - struct drm_modeset_acquire_ctx ctx; + struct drm_modeset_acquire_ctx *ctx; struct drm_atomic_state *state; struct vc4_crtc_state *new_vc4_crtc_state; struct vc4_hvs_state *new_hvs_state; @@ -891,14 +867,13 @@ static void drm_test_vc5_pv_muxing_bugs_stable_fifo(struct kunit *test) vc4 = vc5_mock_device(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vc4); - drm_modeset_acquire_init(&ctx, 0); + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); drm = &vc4->base; - state = drm_atomic_state_alloc(drm); + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); - state->acquire_ctx = &ctx; - ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI0); KUNIT_ASSERT_EQ(test, ret, 0); @@ -930,13 +905,9 @@ 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); - drm_atomic_state_put(state); - - state = drm_atomic_state_alloc(drm); + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); - state->acquire_ctx = &ctx; - ret = vc4_mock_atomic_del_output(test, state, VC4_ENCODER_TYPE_HDMI0); KUNIT_ASSERT_EQ(test, ret, 0); @@ -958,18 +929,27 @@ static void drm_test_vc5_pv_muxing_bugs_stable_fifo(struct kunit *test) KUNIT_EXPECT_EQ(test, old_hdmi1_channel, hdmi1_channel); } - - drm_atomic_state_put(state); - drm_modeset_drop_locks(&ctx); - drm_modeset_acquire_fini(&ctx); - drm_dev_unregister(drm); - drm_kunit_helper_free_device(test, vc4->dev); } +/* + * Test that if we affect a single output, only the CRTC state of that + * output will be pulled in the global atomic state. + * + * This is relevant for two things: + * + * - If we don't have that state at all, we are unlikely to affect the + * FIFO muxing. This is somewhat redundant with + * drm_test_vc5_pv_muxing_bugs_stable_fifo() + * + * - KMS waits for page flips to occur on all the CRTC found in the + * CRTC state. Since the CRTC is unaffected, we would over-wait, but + * most importantly run into corner cases like waiting on an + * inactive CRTC that never completes. + */ static void drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable_too_many_crtc_state(struct kunit *test) { - struct drm_modeset_acquire_ctx ctx; + struct drm_modeset_acquire_ctx *ctx; struct drm_atomic_state *state; struct vc4_crtc_state *new_vc4_crtc_state; struct drm_device *drm; @@ -979,14 +959,13 @@ drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable_too_many_crtc_state(struct ku vc4 = vc5_mock_device(test); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vc4); - drm_modeset_acquire_init(&ctx, 0); + ctx = drm_kunit_helper_acquire_ctx_alloc(test); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx); drm = &vc4->base; - state = drm_atomic_state_alloc(drm); + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); - state->acquire_ctx = &ctx; - ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI0); KUNIT_ASSERT_EQ(test, ret, 0); @@ -996,13 +975,9 @@ drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable_too_many_crtc_state(struct ku ret = drm_atomic_helper_swap_state(state, false); KUNIT_ASSERT_EQ(test, ret, 0); - drm_atomic_state_put(state); - - state = drm_atomic_state_alloc(drm); + state = drm_kunit_helper_atomic_state_alloc(test, drm, ctx); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, state); - state->acquire_ctx = &ctx; - ret = vc4_mock_atomic_add_output(test, state, VC4_ENCODER_TYPE_HDMI1); KUNIT_ASSERT_EQ(test, ret, 0); @@ -1012,12 +987,6 @@ drm_test_vc5_pv_muxing_bugs_subsequent_crtc_enable_too_many_crtc_state(struct ku new_vc4_crtc_state = get_vc4_crtc_state_for_encoder(test, state, VC4_ENCODER_TYPE_HDMI0); KUNIT_EXPECT_NULL(test, new_vc4_crtc_state); - - drm_atomic_state_put(state); - drm_modeset_drop_locks(&ctx); - drm_modeset_acquire_fini(&ctx); - drm_dev_unregister(drm); - drm_kunit_helper_free_device(test, vc4->dev); } static struct kunit_case vc5_pv_muxing_bugs_tests[] = { |