iort_dma_get_ranges(9)

🌈 iort_dma_get_ranges(9) — Kernel API Manual, but make it cute ✨

okay so bestie, this is iort_dma_get_ranges(9) from the Kernel API Manual, and it is literally here to look up the DMA addressing limit for the device. That's the whole main-character assignment. 💅

🌸 NAME 🌸

iort_dma_get_ranges — Look up DMA addressing limit for the device. Periodt. 🎀

🎀 SYNOPSIS 🎀

The signature is giving "short, iconic, don't touch the spacing":

int iort_dma_get_ranges (struct device *dev , u64 *limit );

🦋 ARGUMENTS 🦋

• dev — device to lookup. Like, the device you're looking up, bestie. 🔍
• limit — DMA limit result pointer. This is the pointer where the DMA limit result goes. 🫶

⭐ RETURN ⭐

Returns 0 on success, an error otherwise. No extra lore — that is the whole vibe check. 😌

👑 SEE ALSO 👑

Kernel file: ./drivers/acpi/arm64/iort.c — and the whole squad is right here, no cap:

• iort_set_fwnode(9)
• iort_get_fwnode(9)
• iort_delete_fwnode(9)
• iort_get_iort_node(9)
• iort_register_domain_token(9)
• iort_deregister_domain_token(9)
• iort_find_domain_token(9)
• iort_msi_map_id(9)
• iort_msi_xlate(9)
• iort_pmsi_get_msi_info(9)
• iort_dev_find_its_id(9)
• iort_get_device_domain(9)
• iort_get_platform_device_domain(9)
• iort_iommu_get_resv_regions(9)
• iort_get_rmr_sids(9)
• iort_put_rmr_sids(9)
• iort_iommu_configure_id(9)
• iort_add_platform_device(9)

xoxo, your fav kernel bestie 🫶 — source/version: ./drivers/acpi/arm64 · date: October 2026 · manual: iort_dma_get_ranges(9) 💖