MONDAY, JULY 6, 2026
s390 — Committed
s390: Add store CPU counter multiple instruction
Jens Remus confirms the "store CPU counter multiple" instruction has been committed.
Jens Remus confirms that a patch adding the “store CPU counter multiple” instruction for the IBM z13 processor has been committed to mainline. The patch also adds comments to the s390 opcode table for existing CPUMF instructions and includes a test case.
In the Thread
- proposer
Confirms the patch adding the 'store CPU counter multiple' instruction has been committed.
“Thank you for the review! Committed to mainline.”
In Details
This patch adds support for the stcctm instruction on s390, part of the CPU-Measurement Facilities (CPUMF) for the IBM z13. Support includes the opcode table entry, documentation, and a gas test suite.
For Context
- store CPU counter multiple
- An instruction that reads multiple CPU performance counters, introduced with the Store-CPU-Counter-Multiple Facility on IBM z13.
- CPU-Measurement Facilities (CPUMF)
- A set of features on IBM mainframes that allow for the measurement of CPU performance and activity.
- gas
- The GNU Assembler, part of the GNU Binutils package. It translates assembly language code into machine code.