__drm_lut32_to_dc_gamma(9)

✨ __drm_lut32_to_dc_gamma (9) ✨

okay so bestie, welcome to the Kernel API Manual entry for __drm_lut32_to_dc_gamma — literally the glow-up artist that turns your drm_color_lut32 into a dc_gamma 💅 no cap, she's out here converting lookup tables so your colors pop correctly 🌈

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🎀 SYNOPSIS 🎀

void __drm_lut32_to_dc_gamma (const struct drm_color_lut32 *lut ,
                              struct dc_gamma *gamma );

like, she takes two things and gives you nothing back (void, periodt) — she just does the work and moves on, main character energy fr fr ✨

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🦋 ARGUMENTS 🦋

• lut — the DRM lookup table for color conversion 💖 this is the source of truth, the OG table, the one we're reading from.
• gamma — the DC gamma you're setting entries into 🎀 she's the destination, the one getting filled up with all that converted goodness.

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🌸 DESCRIPTION 🌸

so the way this works, right? The conversion depends on the size of the lut — specifically whether or not it's legacy 👀 that's the whole vibe check here. Different size, different legacy-ness, different path through the conversion. That's it, that's the tea 🍓

ngl this is one of those "the details live in the size" situations — don't assume one behavior fits all luts, because it doesn't 💀

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👑 SEE ALSO 👑

bestie you are NOT ready for this friend group, it's giving whole-file reunion 🫶 they all live around here:

• Kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
• overview(9)
• amdgpu_dm_init_color_mod(9)
• __extract_blob_lut(9)
• __extract_blob_lut32(9)
• __is_lut_linear(9)
• __drm_lut_to_dc_gamma(9)
• __drm_ctm_to_dc_matrix(9)
• __drm_ctm_3x4_to_dc_matrix(9)
• __set_legacy_tf(9)
• __set_output_tf(9)
• __set_output_tf_32(9)
• __set_input_tf(9)
• __set_input_tf_32(9)
• amdgpu_dm_verify_lut3d_size(9)
• amdgpu_dm_verify_lut_sizes(9)
• amdgpu_dm_check_crtc_color_mgmt(9)
• amdgpu_dm_update_crtc_color_mgmt(9)
• amdgpu_dm_update_plane_color_mgmt(9)

like, go read them, they're iconic, iykyk 💜

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and that's the whole page babes 🧚 source is ./drivers/gpu/drm/amd/display/... and this little beauty is dated October 2026 — __drm_lut32_to_dc_gamma(9), slay, bye 💖✨