dm_test_get_...ale_identity(9)

✨ NAME ✨

dm_test_get_plane_scale_identity — a whole KUnit test whose entire lil job is testing Get plane scale identity 💅 like yes bestie that's the whole vibe

This page lives in the Kernel API Manual, which is honestly the most main-character manual of all the manuals 🌈

---

🎀 SYNOPSIS 🎀

void dm_test_get_plane_scale_identity (struct kunit *test );

ok so it returns void, meaning it gives you nothing back and that is fully the point — it's a test, she's not here to return values, she's here to check things 🔥

---

💖 ARGUMENTS 💖

• test — the KUnit test context 🧚 that's it, that's the whole argument list. She needs her little test context to do her thing, and honestly? Relatable.

---

🦋 SEE ALSO 🦋

ok so there's a Kernel file involved and here's exactly where it lives, no cap:

• ./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_cursor_test.c

and then the whole friend group of sibling tests, all of them iconic, all of them (9) coded 👑:

• dm_test_should_update_native_cursor_without_crtc(9)
• dm_test_should_update_native_cursor_disable_native(9)
• dm_test_should_update_native_cursor_enable_overlay(9)
• dm_test_oriented_plane_size_rotate_0(9)
• dm_test_oriented_plane_size_rotate_90(9)
• dm_test_oriented_plane_size_rotate_180(9)
• dm_test_oriented_plane_size_rotate_270(9)
• dm_test_get_plane_scale_rotate_90_identity(9)
• dm_test_get_plane_scale_zero_src_width(9)

like literally the whole rotation family ate and left no crumbs 🌸

---

ngl bestie this one is short — it's a single test function, not a whole tool. But short and slay is still slay 💀✨

---

and that's the page fr fr 🫶 it ships from ./drivers/gpu/drm/amd/display/..., dropped in October 2026, and it's filed under dm_test_get_...ale_identity(9) — periodt 💜