STRUCT MEM_REGION(9)

💖 struct mem_region(9) 💖

okay bestie, welcome to the Kernel API Manual page for struct mem_region — literally the memory region structure, and yes she's iconic ✨

---

🎀 NAME 🎀

struct mem_region — memory region structure. that's it, that's the vibe. short, sweet, slays 💅

---

🌸 SYNOPSIS 🌸

okay so here's the whole struct, no cap, exactly as it is:

struct mem_region {
    u64 base;
    u64 size;
    unsigned long offset;
    int destroy;
 };

she's four fields and she knows it 🦋

---

✨ Members ✨

every field gets her moment, bestie:

• base — base address. the starting point, the origin story, the where it all begins 🫶
• size — size in bytes. how big she is. measurements matter 💜
• offset — difference between base and rm.size. yes, literally rm.size — that's what the page says, so that's what you get, iykyk 🙈
• destroy — flag if region should be destroyed upon shutdown. like, is this region getting yeeted at shutdown or not 💀

---

🔥 SEE ALSO 🔥

okay so there's a lot of friends in this friend group, so let's go — Kernel file ./arch/powerpc/platforms/ps3/mm.c struct map(9), then:

• ps3_mm_phys_to_lpar(9)
• ps3_mm_vas_create(9)
• ps3_mm_vas_destroy(9)
• ps3_mm_region_create(9)
• ps3_mm_region_destroy(9)
• dma_sb_lpar_to_bus(9)
• dma_sb_map_pages(9)
• dma_sb_region_create(9)
• dma_sb_map_area(9)
• dma_sb_unmap_area(9)
• dma_sb_region_create_linear(9)
• dma_sb_region_free_linear(9)
• dma_sb_map_area_linear(9)
• ps3_mm_init(9)
• ps3_mm_shutdown(9)

like, that's a whole group chat right there 😭 go read them, they're all main character energy 👑

---

reminder bestie: these are references to other manual pages — go actually read them before you go touching memory regions, fr fr 🍓

---

and that's the page!! this one came from ./arch/powerpc/platforms/ps3, dated October 2026, and it's the struct mem_region(9) manual page — mwah, tysm for reading, ily 🧚‍♀️💖⭐