dm_test_rep...dy_supported(9)

💅 dm_test_rep...dy_supported(9) — the gen-z field guide 🎀

okay bestie, we're in the Kernel API Manual today, and this one is a tiny little KUnit test page from the AMD display driver tree. it's short, it's sweet, it's giving "one job and she does it." let's go ✨

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🌸 NAME 🌸

dm_test_replay_set_caps_already_supported — literally just verifying that cached Replay support gets respected, no cap 💖

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🦋 SYNOPSIS 🦋

void dm_test_replay_set_caps_already_supported (struct kunit *test );

that's it. that's the whole signature. she's compact 👑

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🎀 ARGUMENTS 🎀

• test — the KUnit test context 🧪. this is the little bundle of test-runner state that kunit hands you so your test can, like, exist and report stuff. main character energy fr.

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✨ DESCRIPTION ✨

so here's the vibe check 🔍: when replay_supported is already set, then amdgpu_dm_set_replay_caps should return true without revalidating the link capabilities — like, girl, we already checked, we're not doing it again 💅 periodt.

that's the whole test. no extra steps, no sneaky side quests. obsessed 🫶

ngl this is one of those tests that exists purely to make sure the early-out actually early-outs. no revalidation, no drama 🔥

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💜 SEE ALSO 💜

Kernel file

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

and here's the whole friend group, all seventeen of them, in order, because we do not leave a bestie behind 😭:

• dm_test_replay_set_caps_non_embedded_signal(9)
• dm_test_replay_set_caps_disallowed_by_panel(9)
• dm_test_replay_set_caps_link_not_supported(9)
• dm_test_replay_set_caps_missing_dmub_srv(9)
• dm_test_replay_set_caps_success(9)
• dm_test_replay_link_setup_null_stream(9)
• dm_test_replay_link_setup_null_link(9)
• dm_test_replay_link_setup_null_vrr_params(9)
• dm_test_replay_link_setup_not_supported(9)
• dm_test_replay_link_setup_already_enabled(9)
• dm_test_replay_link_setup_success(9)
• dm_test_replay_set_event_null_stream(9)
• dm_test_replay_set_event_null_link(9)
• dm_test_replay_set_event_feature_disabled(9)
• dm_test_replay_set_event_missing_power_module(9)
• dm_test_replay_set_event_already_set(9)
• dm_test_replay_set_event_already_clear(9)

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and that's the whole page, bestie 🌈

cute little sign-off time: this one comes from the source path ./drivers/gpu/drm/amd/display/... and it's dated October 2026 🗓️ (yes, the future, we're iconic like that). stay hydrated, read your manpages, and remember: if the caps are already supported, don't revalidate the link. mwah 💋🧚‍♀️