xe_pt_zap_ptes_range(9)

💅 xe_pt_zap_ptes_range(9) — like, the whole vibe

okay so bestie, welcome to the Kernel API Manual ✨ this one lives in section 9 and it's all about zapping stuff (don't worry, it's a good kind of zapping, zeroing gpu ptes, very main character energy 💅)

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✨ NAME ✨

xe_pt_zap_ptes_range — zap (zero) gpu ptes of a SVM range 🧚

Like literally, it zeroes out gpu ptes across a whole SVM range. That's the whole job. Slay.

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🌸 SYNOPSIS 🌸

bool xe_pt_zap_ptes_range (struct xe_tile *tile , struct xe_vm *vm ,
struct xe_svm_range *range );

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🎀 ARGUMENTS 🎀

• tile — the tile we're zapping for, bestie. that's the one.
• vm — the VM we're zapping for. yes, also that one.
• range — the SVM range we're zapping for. it's giving very consistent, honestly 🫶

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🦋 DESCRIPTION 🦋

okay so here's the lore 👑 — SVM invalidation needs to be able to zap the gpu ptes of a given address range. like, it's non-negotiable, it's the whole plot. and to actually pull that off, this function needs access to the shared page-table entries, so it can either clear the leaf PTEs or clear the pointers to lower-level page-tables. those are the two moves it's got, and it ate with both 🔥

⚠️ but listen — the caller is required to hold the SVM notifier lock. that's not a suggestion, that's not a vibe, that's a hard requirement. don't come for this function without it, fr fr 😭

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⭐ RETURN ⭐

it returns whether ptes were actually updated and a TLB invalidation is required. so like, a bool that tells you "did I do something and do you need to go flush things now" 💀 useful.

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_pt.c
• xe_pt_create(9)
• xe_pt_populate_empty(9)
• xe_pt_shift(9)
• xe_pt_destroy(9)
• xe_pt_clear(9)
• Pagetable building(9)
• struct xe_pt_stage_bind_walk(9)
• xe_pt_stage_bind(9)
• xe_pt_nonshared_offsets(9)
• xe_pt_zap_ptes(9)
• xe_pt_stage_unbind(9)
• xe_pt_update_ops_prepare(9)
• xe_pt_update_ops_run(9)
• xe_pt_update_ops_fini(9)
• xe_pt_update_ops_abort(9)

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and that's the page, bestie 💖 go forth and zap responsibly ✨

this whole thing came to you from ./drivers/gpu/drm/xe, dated October 2026 — mwah, take care, iykyk 🍓💜