add_tce_mem_ranges(9)

💅 add_tce_mem_ranges(9) — Kernel API Manual

okay so bestie, welcome to add_tce_mem_ranges, a little kernel API page from Kernel API Manual section 9 that is genuinely so specific and so iconic. it does exactly one thing and it does it well. let's get into it 🎀

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✨ NAME ✨

add_tce_mem_ranges — adds tce-table range to the given memory ranges list.

like, that's the whole gig. it takes the tce-table range and puts it in the list. slay 💅

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✨ SYNOPSIS ✨

int add_tce_mem_ranges (struct crash_mem **mem_ranges );

the signature is literally right there, copy it exactly bestie, struct crash_mem **mem_ranges — double pointer, no cap 🔥

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✨ ARGUMENTS ✨

• mem_ranges — the range list you're adding the memory range(s) to. that's it. that's the vibe check. it's the list, you're adding to it, go off 🦋

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✨ DESCRIPTION ✨

so what happens? returns 0 on success, and a negative errno on error. periodt. that's the whole description, bestie, the manpage is refreshingly short and we respect it for that 🌸

ngl if you get a negative errno back you're in error territory — check it, don't sleep on it 😭

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✨ SEE ALSO ✨

the friend group 💖 — all of these live in the kernel file ./arch/powerpc/kexec/ranges.c:

• get_max_nr_ranges(9)
• get_mem_rngs_size(9)
• __add_mem_range(9)
• __merge_memory_ranges(9)
• sort_memory_ranges(9)
• realloc_mem_ranges(9)
• add_mem_range(9)
• add_initrd_mem_range(9)
• add_htab_mem_range(9)
• add_kernel_mem_range(9)
• add_rtas_mem_range(9)
• add_opal_mem_range(9)
• add_reserved_mem_ranges(9)
• get_reserved_memory_ranges(9)
• get_exclude_memory_ranges(9)
• get_usable_memory_ranges(9)
• get_crash_memory_ranges(9)

like, the whole range-adjacent squad is right there. iykyk 👑

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and that's the page!! thank you for coming to my ted talk 🫶 this one's from ./arch/powerpc/kexec, dated October 2026 — mwah, bye bestie!! 💜🎀✨