dm_test_set...disconnected(9)

💅 dm_test_set...disconnected(9) — like, the Kernel API Manual page, bestie 🎀

okay so this is a page straight out of the Kernel API Manual, and the function it's hyping up is dm_test_set_psr_caps_disconnected. no cap, the whole point is literally in the name.

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✨ NAME ✨

dm_test_set_psr_caps_disconnected — Disconnected links cannot enable PSR. periodt. if the link isn't connected, PSR is not happening, and this test is here to make sure of it 💅

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🌸 SYNOPSIS 🌸

void dm_test_set_psr_caps_disconnected (struct kunit *test );

that's it, that's the whole signature. a void function, takes one arg, no return value, iconic behaviour honestly 🫶

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🦋 ARGUMENTS 🦋

• test — the KUnit test context. it's giving "here's your whole world, go write a test in it" energy ✨

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👑 SEE ALSO 👑

🍓 Kernel file

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

🌈 the whole friend group (all of them, no skipping, i see you)

• dm_test_link_supports_psrsu_no_dmcub(9)
• dm_test_link_supports_psrsu_old_dcn(9)
• dm_test_link_supports_psrsu_panel_unsupported(9)
• dm_test_link_supports_psrsu_missing_alpm(9)
• dm_test_link_supports_psrsu_missing_y_coordinate(9)
• dm_test_link_supports_psrsu_missing_granularity(9)
• dm_test_link_supports_psrsu_debug_mask_disabled(9)
• dm_test_link_supports_psrsu_temporarily_disabled(9)
• dm_test_set_psr_caps_null_link(9)
• dm_test_set_psr_caps_null_connector(9)
• dm_test_set_psr_caps_no_dmub_psr(9)
• dm_test_set_psr_caps_non_edp(9)
• dm_test_set_psr_caps_no_dpcd_psr(9)
• dm_test_set_psr_caps_edp1_disabled(9)
• dm_test_set_psr_caps_success_psr1(9)
• dm_test_psr_set_event_get_event_fails(9)
• dm_test_psr_set_event_already_set(9)
• dm_test_psr_set_event_updates_event(9)
• dm_test_psr_is_active_allowed_no_streams(9)
• dm_test_psr_is_active_allowed_null_link(9)
• dm_test_psr_is_active_allowed_requires_enabled_and_allowed(9)
• dm_test_psr_is_active_allowed_any_stream(9)

like, the entire psr test family is here. it's a reunion. every single one of them, bestie 💖

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real talk: this is the disconnected one, so the vibe is "no link, no PSR caps, we don't enable it." don't go expecting PSR to light up here 🙈

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mwah, that's the page 💜 brought to you by the source <purple>./drivers/gpu/drm/amd/display/...</purple> and dated October 2026. go forth and test responsibly, bestie 🧚✨