dm_test_crt...et_crc_fails(9)

💅 dm_test_crt...et_crc_fails(9) — from the Kernel API Manual, bestie 🎀

okay so this page is literally called dm_test_crtc_handle_crc_irq_get_crc_fails and yes the header up top is truncated because man page names have a character limit and the kernel said "not my problem" 💀 anyway — it lives in the Kernel API Manual, so you know it's the real deal ✨

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🌸 NAME 🌸

dm_test_crtc_handle_crc_irq_get_crc_fails — the test for when a DC CRC read fails, and honestly it's giving "expecting the worst and being right" 🙈

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✨ SYNOPSIS ✨

void dm_test_crtc_handle_crc_irq_get_crc_fails (struct kunit *test );

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🦋 ARGUMENTS 🦋

• test — the KUnit test context 💖 that's it, that's the whole argument, she's low maintenance.

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💫 DESCRIPTION 💫

So here's the vibe check 👑: this test verifies that the IRQ handler exits after dc_stream_get_crc returns false — like, it bails before it even thinks about attempting to deliver a DRM CRC entry 🚪💨

no cap, it's a "does the early exit actually happen" test, and it slays at exactly that one job 🫶

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_crc_test.c — go read the source, it's iconic 💜
• 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_dcn36_poly(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_need_dp_aux(9)
• dm_test_crc_source_should_start_dprx(9)
• dm_test_crc_source_should_stop_dprx(9)

like, the whole friend group 🫂 — collection complete, periodt 💅

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bestie, everything here comes from ./drivers/gpu/drm/amd/display/... and the page is dated October 2026 ⭐ so yeah, that's the source, that's the date, we're done here 🎀 mwah 💖