_dpu_core_perf_calc_clk(9)

✨ _dpu_core_perf_calc_clk(9) ✨

okay so this is a page from the Kernel API Manual bestie, and it's all about _dpu_core_perf_calc_clk — the little function whose whole personality is calculating clock per crtc 🎀 no cap, that's literally the job.

---

💖 NAME 💖

_dpu_core_perf_calc_clk — to calculate clock per crtc 👑 clock math but make it per-crtc, that's the vibe.

---

🌸 SYNOPSIS 🌸

u64 _dpu_core_perf_calc_clk (const struct dpu_perf_cfg *perf_cfg ,
struct drm_crtc *crtc , struct drm_crtc_state *state );

like, it takes three things and hands you back a u64 🫶 that's it, that's the whole entrance.

---

🦋 ARGUMENTS 🦋

• perf_cfg — the performance configuration 💅 yes the performance config, she's the one holding the settings.
• crtc — a pointer to a crtc ✨ a whole pointer, to a crtc.
• state — a pointer to a crtc state 🌈 again with the pointer, this time to the state of that crtc.

---

⭐ RETURN ⭐

returns max clk for all planes in crtc 🔥 the maximum clock for every plane in the crtc, that's the answer it gives back. iconic behavior honestly.

---

💜 SEE ALSO 💜

Kernel file ./drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c 📁 (yes that whole path, she lives there) plus the whole friend group:

• enum dpu_perf_mode(9)
• dpu_core_perf_adjusted_mode_clk(9)
• _dpu_core_perf_calc_bw(9)
• dpu_core_perf_crtc_check(9)
• dpu_core_perf_crtc_release_bw(9)
• dpu_core_perf_crtc_update(9)
• dpu_core_perf_debugfs_init(9)
• dpu_core_perf_init(9)

---

ngl bestie, the whole squad is listed up there and they all take a (9) at the end — iykyk, that's just how the kernel section suffix goes 💀 don't come for me.

and that's the page!! 🌸 source/version lives at ./drivers/gpu/drm/msm/disp/dpu1 and it's dated October 2026 — so like, future-coded of them, we stan 🫶✨ bye bestie, go calculate some clocks 💖