dm_test_set...success_psr1(9)

💅 dm_test_set...success_psr1(9) — like, the Kernel API Manual page, bestie 🎀

okay so real quick before we dive in: this whole thing lives in the Kernel API Manual, and the page is dm_test_set...success_psr1(9). That's the vibe. Let's go ✨

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🌸 NAME 🌸

dm_test_set_psr_caps_success_psr1 — honestly? She just checks that a valid eDP link turns on the PSR1 caps. That's it. That's the whole personality 🦋

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✨ SYNOPSIS ✨

void dm_test_set_psr_caps_success_psr1 (struct kunit *test );

like, yes, she takes exactly one thing and returns nothing. lowkey iconic of her 💅

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🫶 ARGUMENTS 🫶

• test — the KUnit test context. that's the little world this test runs inside, bestie, and she needs it to do her thing 💖

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👑 SEE ALSO 👑

Kernel file — the actual source lives here, go look, it's giving main character energy:

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

and here's the whole friend group, the entire PSR test squad, no one left out:

• 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_disconnected(9)
• dm_test_set_psr_caps_no_dpcd_psr(9)
• dm_test_set_psr_caps_edp1_disabled(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)

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ngl bestie, if you're poking at PSR1 caps in the AMD display driver, you're in exactly the right friend group 💯

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and that's a wrap, mwah 🍓 — this cutie came from the kernel docs at ./drivers/gpu/drm/amd/display/..., dated October 2026, and she slayed every single line of it 💜🌈