omap_gem_fault(9)

💅 omap_gem_fault(9) 💅

okay so this is a page from the Kernel API Manual — yes, actual kernel docs, we're getting technical today bestie, stay with me 🫶

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✨ NAME ✨

omap_gem_fault — the pagefault handler for GEM objects 🦋

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🎀 SYNOPSIS 🎀

vm_fault_t omap_gem_fault (struct vm_fault *vmf );

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💖 ARGUMENTS 💖

• vmf — the fault detail. that's the whole thing. it's just the fault detail. that's the job. iconic minimalism honestly ✨

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🌸 DESCRIPTION 🌸

okay so picture this: a fault happens on an mmap of a GEM managed area, right? and that's when this bad boy gets invoked. it's the main character showing up exactly when needed 🔥

here's the tea though — GEM does most of the work for us. like, most most. it handles the actual map/unmap calls and everything. no cap. but the one thing we gotta handle ourselves? the actual page work. that's on us, bestie 💀

and the VMA? already taken care of — it was set up by GEM. and while GEM was doing that, it also made sure that vma->vm_private_data points to the GEM object that's backing this mapping. so like... the connection is already made for you. you literally just have to do the page work. slay 🎀

no cap, no hidden tricks here — GEM sets up the VMA and the pointer, you do the pages. periodt.

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/gpu/drm/omapdrm/omap_gem.c — the source, go read it, iykyk 🧚
• omap_gem_dumb_create(9)
• omap_gem_dumb_map_offset(9)
• omap_gem_pin(9)
• omap_gem_unpin_locked(9)
• omap_gem_unpin(9)

all the siblings in the omap_gem family, go say hi to them 🫶

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🌈 the sign-off 🌈

this little love letter lives in ./drivers/gpu/drm/omapdrm, and it was stamped October 2026 — so yeah, she's dated, she's documented, she's official. go forth and handle your page faults 💜✨👑