dm_test_crt...c_dcn36_poly(9)

💅 NAME 💅

okay so bestie, welcome to dm_test_crt...c_dcn36_poly(9) — literally a page straight out of the Kernel API Manual ✨ and the whole entire vibe of it is:

dm_test_crtc_configure_crc_source_crtc_dcn36_poly — Test CRC poly select. 🎀

that's it. that's the name. she's long, she's iconic, she ate. 🫶

---

✨ SYNOPSIS ✨

void dm_test_crtc_configure_crc_source_crtc_dcn36_poly (struct kunit
test );

no cap, that's the whole signature. she takes one thing and returns nothing (void nation represent 💀).

---

🌸 ARGUMENTS 🌸

• test — the KUnit test context. that's the little vibe-holder that carries the test's state around. you hand it over and she does her thing with it. 🦋

---

🔥 DESCRIPTION 🔥

okay so here's the tea: this test verifies that DCN3.6+ configurations use the CRTC-selected CRC polynomial. 👑

like, if you're on DCN3.6 or newer, the CRC polynomial better be the one the CRTC picked, and this test is the one checking that. she's a vibe check for your polynomial selection, fr fr. ⭐

---

🌈 SEE ALSO 🌈

the kernel file lives at ./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_crc_test.c — go read it, iykyk 📖💖

and here's the whole friend group, all of them (9) pages, all of them slaying in their own lane:

• dm_test_crtc_get_crc_sources(9)
• dm_test_crtc_verify_crc_source_valid(9)
• dm_test_crtc_verify_crc_source_invalid(9)
• dm_test_crtc_configure_crc_source_no_stream(9)
• dm_test_crtc_configure_crc_source_dprx(9)
• dm_test_crtc_configure_crc_source_dprx_dither(9)
• dm_test_crtc_configure_crc_source_crtc(9)
• dm_test_crtc_configure_crc_source_crtc_configure_fails(9)
• dm_test_crtc_configure_crc_source_none(9)
• dm_test_crtc_set_crc_source_invalid(9)
• dm_test_crtc_set_crc_source_none_no_stream(9)
• dm_test_crtc_set_crc_source_none_commit(9)
• dm_test_crtc_set_crc_source_dprx_no_connector(9)
• dm_test_crtc_handle_crc_irq_early_returns(9)
• dm_test_crtc_handle_crc_irq_disabled_source(9)
• dm_test_crtc_handle_crc_irq_skips_initial_frames(9)
• dm_test_crtc_handle_crc_irq_dprx_after_skip(9)
• dm_test_crtc_handle_crc_irq_get_crc_fails(9)
• dm_test_need_dp_aux(9)
• dm_test_crc_source_should_start_dprx(9)
• dm_test_crc_source_should_stop_dprx(9)

go read all of them, don't skip a single one, they all deserve your attention 💅💜

---

ngl the source line got cuter than my attention span: it's from ./drivers/gpu/drm/amd/display/... and it's dated October 2026. so mark your calendars bestie 🗓️✨

---

and that's the page!! thank you for coming to my ted talk, mwah 💋 — she's short, she's sweet, she tests polynomials, she's a main character. 🧚‍♀️🎀🦋