STRUCT PANTHOR_GPU(9)

📦 version 7.3.1, in nixpkgs unstable

💅 struct panthor_gpu(9) — the Kernel API Manual, bestie edition 🎀

okay so this is a page from the Kernel API Manual, and it's all about struct panthor_gpu — literally the GPU block management data. yes that's the whole vibe: it's the little struct that holds all the bookkeeping for the GPU block. slay. ✨

🌸 NAME 🌸

struct panthor_gpu — GPU block management data. that's it, that's the name, and honestly? iconic. 💖

🦋 SYNOPSIS 🦋

here's the struct in all its glory, copy-pasted exactly because we do NOT mess with code, periodt:

struct panthor_gpu {
    void __iomem *iomem;
    struct panthor_irq irq;
    spinlock_t reqs_lock;
    u32 pending_reqs;
    wait_queue_head_t reqs_acked;
    struct mutex cache_flush_lock;
 };

look at her. six members. main character energy fr fr. 👑

✨ Members ✨

🌈 the members, one by one, no skips

  • iomem — the CPU mapping of the GPU_CONTROL iomem region. it's giving "here's where the GPU lives in memory" 💫
  • irq — the GPU irq. the interrupt. the little ping that says "hey bestie, something happened" 🔔
  • reqs_lock — a lock protecting access to pending_reqs. she's the bouncer at the club, nobody touches pending_reqs without her say-so 🫶
  • pending_reqs — pending GPU requests. the queue of stuff the GPU still owes us, lowkey 😭
  • reqs_acked — the GPU request wait queue. where you wait for the ack, patiently, like a good little thread 💅
  • cache_flush_lock — a lock to serialize cache flushes. so the flushes don't pile up on top of each other and cause chaos. one at a time, bestie, one at a time 🧚
ngl, two locks in one struct? that's a lot of responsibility. but she handles it. 💀

🔥 SEE ALSO 🔥

the kernel file where all the action lives:

  • ./drivers/gpu/drm/panthor/panthor_gpu.c

and the whole friend group — go read these next, iykyk:

and that's the whole page, bestie, you ate that 🍓 this came out of ./drivers/gpu/drm/panthor, dated October 2026, and it's filed under struct panthor_gpu(9) — mwah, go forth and manage those GPU blocks 💜✨

📦 where this page comes from