iface_fw_to_cpu_addr(9)

💅 iface_fw_to_cpu_addr — kernel API manual, but make it cute 🎀

okay so bestie, welcome to the iface_fw_to_cpu_addr(9) page ✨ this is the kernel API manual energy, and we're about to translate an MCU address into a CPU address. literally just a glow-up for a pointer, iykyk 💫

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🌸 NAME 🌸

iface_fw_to_cpu_addr — turn an MCU address into a CPU address 🦋

like, it's giving translator. it's giving "bestie, that address is in the wrong coordinate system" 💅

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✨ SYNOPSIS ✨

void * iface_fw_to_cpu_addr (struct panthor_device *ptdev , u32 mcu_va ,
       size_t size );

not me obsessing over a three-arg function 🫶 she takes a device, an MCU address, and a size, and she hands you back a void *. iconic behavior only 👑

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🎀 ARGUMENTS 🎀

• ptdev — the device. your main character struct, the whole context of the operation 💖
• mcu_va — the MCU address. this is the address we're converting, bestie 🌈
• size — size of the object pointed to by mcu_va. yes, size matters, she needs to know how big the thing is 🔥

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⭐ RETURN ⭐

NULL if the object is not part of the shared section 🌧️ — and non-NULL otherwise ☀️

so like, NULL here isn't a fail-fail, it's a "nope, wrong section, not mine" vibe check. no cap 💀

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🦋 SEE ALSO 🦋

the whole panthor friend group, fr fr — all of these live in the kernel file ./drivers/gpu/drm/panthor/panthor_fw.c 📁:

• struct panthor_fw_binary_hdr(9)
• enum panthor_fw_binary_entry_type(9)
• struct panthor_fw_binary_section_entry_hdr(9)
• struct panthor_fw_binary_iter(9)
• struct panthor_fw_section(9)
• struct panthor_fw_iface(9)
• struct panthor_fw(9)
• panthor_fw_get_glb_iface(9)
• panthor_fw_get_csg_iface(9)
• panthor_fw_get_cs_iface(9)
• panthor_fw_conv_timeout(9)
• panthor_fw_alloc_queue_iface_mem(9)
• panthor_fw_alloc_suspend_buf_mem(9)
• panthor_fw_pre_reset(9)
• panthor_fw_post_reset(9)
• panthor_fw_unplug(9)
• panthor_fw_wait_acks(9)
• panthor_fw_glb_wait_acks(9)
• panthor_fw_csg_wait_acks(9)
• panthor_fw_ring_csg_doorbells(9)
• panthor_fw_init(9)

every single one of them, no skips, we don't do that here 💜

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and that's the page, bestie 🧚 this gem lives down in ./drivers/gpu/drm/panthor, dated October 2026 — and the manual name is iface_fw_to_cpu_addr(9) in case you forgot already 🙈 ok bye, drink water, slay your kernel builds 💖🎀✨