trace_s390_cio_tpi(9)

💫 trace_s390_cio_tpi — from the Kernel API Manual, bestie 💫

okay so picture this: it's a manpage, it's in the Kernel API Manual, and it's literally called trace_s390_cio_tpi. Say that five times fast. no cap, this one's short and sweet — a whole little tracepoint moment for when the Test Pending Interruption instruction (TPI) was performed. slay. 🎀

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✨ NAME ✨

trace_s390_cio_tpi — the tracepoint that fires when the Test Pending Interruption instruction (TPI) was performed. that's it, that's the whole vibe. 💅

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🌸 SYNOPSIS 🌸

void trace_s390_cio_tpi (struct tpi_info *addr , int cc );

look at her. gorgeous. two args, no notes. 🫶

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🦋 ARGUMENTS 🦋

• addr — this is the Address of the I/O interruption code, or NULL if there isn't one. yes bestie, NULL is a valid look here. 👑
• cc — the Condition code. just the cc, living her life. ⭐

ngl there are only two arguments and neither of them is complicated, so if you were bracing for a wall of options… not today, bestie. 💖

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🔥 SEE ALSO 🔥

the Kernel file ./drivers/s390/cio/trace.h is the home base, and here's the whole friend group — all the tracepoint besties in the same s390 cio clique:

• trace_s390_cio_stsch(9)
• trace_s390_cio_msch(9)
• trace_s390_cio_tsch(9)
• trace_s390_cio_ssch(9)
• trace_s390_cio_csch(9)
• trace_s390_cio_hsch(9)
• trace_s390_cio_xsch(9)
• trace_s390_cio_rsch(9)
• trace_s390_cio_chsc(9)
• trace_s390_cio_interrupt(9)
• trace_s390_cio_adapter_int(9)
• trace_s390_cio_stcrw(9)

like, the way they all end in sch(9) except for the last three? iykyk. it's giving "one big happy channel-subsystem family." 🌈

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and that's the page, bestie!! 💜 this little icon dropped from ./drivers/s390/cio, dated October 2026, and it'll always be trace_s390_cio_tpi(9) to us. go read the whole s390 cio trace crew, mwah. 🍓✨🧚