i915_set_dma_info(9)

💖 i915_set_dma_info(9) — Kernel API Manual 💖

okay so bestie, welcome to the i915_set_dma_info(9) page from the Kernel API Manual. It’s giving “one function, but make it infrastructure” ✨

💅 NAME 💅

i915_set_dma_info — set all relevant PCI dma info as configured for the platform. periodt.

✨ SYNOPSIS ✨

int i915_set_dma_info (struct drm_i915_private *i915 );

🎀 ARGUMENTS 🎀

• i915 — a valid i915 instance. That’s the vibe check, bestie 🫶

🌸 DESCRIPTION 🌸

Okay so this function sets the dma max segment size, plus the device and coherent masks. That’s the little trio it’s handling 💅

⚠️ order tea, and it matters: the dma mask set needs to occur before i915_ggtt_probe_hw. Do not be fashionably late to this one 😭

A couple of platforms have special needs, and yes — this function addresses them as well. Inclusivity icon behavior 🌈

🦋 SEE ALSO 🦋

Kernel file: ./drivers/gpu/drm/i915/i915_driver.c

• i915_driver_early_probe(9)
• i915_driver_late_release(9)
• i915_driver_mmio_probe(9)
• i915_driver_mmio_release(9)
• i915_driver_hw_probe(9)
• i915_driver_hw_remove(9)
• i915_driver_register(9)
• i915_driver_unregister(9)
• i915_driver_probe(9)

mwah 💋 — source/version: ./drivers/gpu/drm/i915 · date: October 2026 · page: i915_set_dma_info(9). slay and goodbye 🎀