dm_test_ism_...nvalid_event(9)

💅 dm_test_ism_commit_event_invalid_event — a kernel API manual moment 🎀

okay so bestie, welcome to the Kernel API Manual entry for dm_test_ism_commit_event_invalid_event(9) — yes the title got abbreviated up top, don't worry about it, the full name is right here and she is iconic ✨

---

🌸 NAME 🌸

dm_test_ism_commit_event_invalid_event — literally just proves that an invalid event leaves the FSM unchanged. no drama, no transition, nothing moves. periodt. 💅

---

🦋 SYNOPSIS 🦋

void dm_test_ism_commit_event_invalid_event (struct kunit *test );

---

🎀 ARGUMENTS 🎀

• test — the KUnit test context 🧪 she's the main character here, holding all the test-y vibes together.

---

✨ DESCRIPTION ✨

so here's the tea, bestie 🍓 — EXIT_IDLE_REQUESTED is not a valid event from FULL_POWER_RUNNING. like, at all. not even close. so when the FSM gets handed this event, she does not transition, and no power-state dispatch occurs. zero movement, zero dispatch, the state machine just sits there looking pretty 💀

it's giving "nothing happened and that's the whole point." 🫶

ngl this is exactly what the test is checking for — the absence of a transition is the win here, bestie. no cap. 🔥

---

👑 SEE ALSO 👑

the kernel file in question lives right here, go say hi 🦋:

./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_ism_test.c

and the whole friend group of sibling tests ✨:

• dm_test_ism_idle_delay_entry_count_exceeds_history_size(9)
• dm_test_ism_init_sets_initial_state(9)
• dm_test_ism_fini_after_init(9)
• dm_test_ism_set_last_idle_ts_updates_timestamp(9)
• dm_test_ism_insert_record_basic(9)
• dm_test_ism_insert_record_wraps_around(9)
• dm_test_ism_trigger_event_valid_transition(9)
• dm_test_ism_trigger_event_invalid_transition(9)
• dm_test_dispatch_next_event_hyst_wait_no_delay(9)
• dm_test_dispatch_next_event_hyst_wait_with_delay(9)
• dm_test_dispatch_next_event_opt_idle_no_sso_delay(9)
• dm_test_dispatch_next_event_opt_idle_with_sso_delay(9)
• dm_test_dispatch_next_event_timer_aborted(9)
• dm_test_dispatch_next_event_no_action_state(9)
• dm_test_ism_commit_event_no_state(9)
• dm_test_ism_commit_event_cursor_transition(9)
• dm_test_ism_force_full_power(9)
• dm_test_ism_disable_enable_cycle(9)
• dm_test_ism_dispatch_hysteresis_schedule_and_cancel(9)
• dm_test_ism_dispatch_optimized_idle_defers_sso(9)

---

and that's the whole page, bestie 💜 — brought to you by the path ./drivers/gpu/drm/amd/display/..., dated October 2026, signed off as dm_test_ism_...nvalid_event(9). slay, go read the source, ily 🫶🌈