STRUCT DPU_HW_GC_LUT(9)

💅 struct dpu_hw_gc_lut(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — today's main character is struct dpu_hw_gc_lut, which is literally the gc lut feature structure 🎀. yes that's its whole NAME, no notes, we move.

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✨ NAME ✨

struct dpu_hw_gc_lut — the gc lut feature structure, periodt 💖

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🦋 SYNOPSIS 🦋

ok so here's the whole vibe, copy it exactly, no cap:

struct dpu_hw_gc_lut {
    __u64 flags;
    __u32 c0[PGC_TBL_LEN];
    __u32 c1[PGC_TBL_LEN];
    __u32 c2[PGC_TBL_LEN];
 };

like… look at her. three luts and a flags field. iconic. 👑

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🌸 Members 🌸

so these are the members, and yes each one matters, we are not skipping 💅

• flags — the flags for the feature, and the values it can be are:
  • PGC_8B_ROUND

(that's the whole list fr fr, one value, she's lowkey exclusive 🎀)

• c0 — the color0 component lut 🍓
• c1 — the color1 component lut 🦋
• c2 — the color2 component lut 🌈

three luts, three vibes, all of them PGC_TBL_LEN long, that's just how she is 😌

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👀 SEE ALSO 👀

go look at the kernel file ./drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.h — that's where the lore lives 📖, and also these besties:

• struct dpu_hw_pcc_coeff(9)
• struct dpu_hw_pcc_cfg(9)
• struct dpu_hw_dspp_ops(9)
• struct dpu_hw_dspp(9)
• to_dpu_hw_dspp(9)

iykyk 💜

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ngl this page is short and sweet — but it's giving "read the header file next" energy, so like… do that 🫶

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and that's the whole page bestie, mwah 💋 — brought to you by ./drivers/gpu/drm/msm/disp/dpu1, dated October 2026, filed under struct dpu_hw_gc_lut(9) ⭐ slay, go touch some registers 🌸