vmw_mob_assign_ppn(9)

💅 vmw_mob_assign_ppn 💅

okay so bestie, welcome to the Kernel API Manual — yes, the kernel really said "let me hand you a whole manual page" and honestly? iconic of it. this one's a tiny little function, but it's doing important page-table business and we're gonna stan it properly 🫶

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✨ NAME ✨

vmw_mob_assign_ppn — assign a value to a page table entry 💖

like, it literally just... puts a value in a page table entry. no cap, that's the whole job. and it slays at it.

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🌸 SYNOPSIS 🌸

void vmw_mob_assign_ppn (u32 **addr , dma_addr_t val );

look at her. short, sweet, returns nothing (void, my beloved), and takes exactly two things. lowkey perfect.

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🎀 ARGUMENTS 🎀

• addr — pointer to a pointer to a page table entry. yes, double pointer. it's giving inception but make it memory management 🌀. this is the address-of-the-address, and she moves (more on that in a sec, bestie).
• val — the page table entry itself. a dma_addr_t, i.e. the actual value that's getting written in. that's the payload, the main character of this operation 👑

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🦋 DESCRIPTION 🦋

so here's the vibe: vmw_mob_assign_ppn assigns a value to a page table entry pointed to by *addr, and then — plot twist — it increments *addr according to the page table entry size ✨

translation for the group chat: it writes val where *addr is pointing, then bumps *addr forward by exactly one page-table-entry's worth of bytes so the next call lands on the next entry. it's a little assembly-line situation and she's thriving 🏭💅 literally just write-then-advance, no thoughts head empty, obsessed.

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/vmwgfx/vmwgfx_mob.c — that's where she lives, go say hi 🏡

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that's the whole page, bestie, hope the vibe check passed 🌈✨ and one last cute little sign-off: this lovely thing comes to you from the source/version ./drivers/gpu/drm/vmwgfx, dated October 2026 — remember us when you're deep in vmwgfx_mob.c at 3am 😭💜🍓