STRUCT XE_GUC_PC(9)

✨ NAME ✨

struct xe_guc_pc — GuC Power Conservation (PC), bestie 💅

🌸 SYNOPSIS 🌸

okay so here's the whole vibe, literally the entire struct, no cap:

struct xe_guc_pc {
    struct xe_bo *bo;
    atomic_t flush_freq_limit;
    u32 rp0_freq;
    u32 rpn_freq;
    u32 user_requested_min;
    u32 user_requested_max;
    u32 stashed_min_freq;
    u32 stashed_max_freq;
    struct mutex freq_lock;
    bool freq_ready;
    u32 power_profile;
 };

🎀 Members 🎀

this is the part where we meet the whole squad, one member at a time 🫶

• bo — the GGTT buffer object that's shared with GuC PC. it's giving "we literally share this, it's ours" energy 💖
• flush_freq_limit — it's 1 when max freq changes are limited by the driver. so like, 1 = the driver's got the freq changes on a leash 🦋
• rp0_freq — HW RP0 frequency — the Maximum one. the main character of frequencies 👑
• rpn_freq — HW RPN frequency — the Minimum one. the humble icon holding it down at the bottom 🌸
• user_requested_min — stashes the minimum requested freq by the user. we remember what you asked for, always 🙈
• user_requested_max — stashes the maximum requested freq by the user. same deal, we're keeping receipts 📝
• stashed_min_freq — stashes the current minimum freq. it's stashed. it's current. it's minimum 💜
• stashed_max_freq — stashes the current maximum freq. the max one, safely stashed away 🎀
• freq_lock — "Let's protect the frequencies." that's literally the whole description and honestly? iconic. a struct mutex doing its bodyguard thing 🔥
• freq_ready — only handle freq changes if they're really ready. no pushing things through before they're ready, we don't do that here ✨
• power_profile — Base or power_saving profile. pick your vibe, bestie ⭐

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_guc_pc_types.h — go read it, iykyk 💅

okay that's the whole page, you ate that fr fr 🍓 this was ./drivers/gpu/drm/xe, October 2026, and it's literally titled struct xe_guc_pc(9) — go off, bestie 🧚💜