xe_pxp_init(9)

💅 xe_pxp_init

okay so bestie, we're in the Kernel API Manual today and this one's about spinning up PXP support on your xe device. she's a little init function with big main character energy, let's get into it 🫶

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✨ NAME ✨

xe_pxp_init — initialize PXP support 💖

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🌸 SYNOPSIS 🌸

int xe_pxp_init (struct xe_device *xe );

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🎀 ARGUMENTS 🎀

• xe — the xe_device structure, aka the whole entire device babe, she's the star of the show 👑

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🦋 DESCRIPTION 🦋

So what she does is: initialize the HW state and allocate all the objects you need for PXP support. Literally setting up the whole vibe so PXP can exist. ✨

⚠️ but like, pay attention bestie: some of the requirements for PXP support (that's GSC proxy init and HuC auth) are performed asynchronously as part of the GSC init. so they're off doing their own thing in the background, living their lives.

Which means — and this is the important part, no cap — PXP can only be used after both this function and the async worker have completed. both. not one. both. periodt. 💅

Return value: returns 0 if PXP is not supported, or if PXP initialization is successful (iconic, we love a chill zero). Any other errno value means there was an error during the init 😭💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_pxp.c
• PXP(9)
• xe_pxp_get_readiness_status(9)
• xe_pxp_irq_handler(9)
• xe_pxp_exec_queue_set_type(9)
• xe_pxp_exec_queue_add(9)
• xe_pxp_exec_queue_remove(9)
• xe_pxp_key_assign(9)
• xe_pxp_bo_key_check(9)
• xe_pxp_obj_key_check(9)
• xe_pxp_pm_suspend(9)
• xe_pxp_pm_resume(9)

like a whole friend group of functions, go say hi to all of them 🧚💜

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anyway that's the page!! brought to you by the good people over at ./drivers/gpu/drm/xe, dated October 2026 — slay, see you in the next manpage bestie 🍓💖