iort_pmsi_get_msi_info(9)

💖 iort_pmsi_get_msi_info(9) 💖

okay so bestie, welcome to the Kernel API Manual — this page is all about iort_pmsi_get_msi_info(9), and it is literally here to get the device id and translate frame PA for a device. no cap 🫶✨

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✨ NAME ✨

iort_pmsi_get_msi_info — Get the device id and translate frame PA for a device. periodt 💅

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🌸 SYNOPSIS 🌸

int iort_pmsi_get_msi_info (struct device *dev , u32 *dev_id ,
       phys_addr_t *pa );

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🎀 ARGUMENTS 🎀

• dev — the device we're doing the mapping for, bestie 💖
• dev_id — the device ID found 👑
• pa — optional pointer to store translate frame address 🦋

yes, pa is optional — it said what it said 🙈

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💅 RETURN 💅

0 for successful devid and pa retrieval, -ENODEV on error 😭

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🦋 SEE ALSO 🦋

Kernel file ./drivers/acpi/arm64/iort.c — go vibe with these other pages too:

• 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_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_dma_get_ranges(9)
• iort_add_platform_device(9)

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okay that's the whole page, bestie — cute sign-off time: this one comes from source/version ./drivers/acpi/arm64, dated October 2026, and it's the iort_pmsi_get_msi_info(9) manual page. bye 💅✨🎀