Move ctr_in_list() from cpumf/lspai.c to a shared location to enable
reuse in other binaries that require counter list filtering.
Reviewed-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Relocated the perf_event_open logic into a shared helper to eliminate
redundant implementations across multiple files. Enhances consistency,
reduces maintenance overhead, and lowers structural complexity.
Acked-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Use util_path_sysfs() to form a fully qualified sysfs file name
for files S390_CPUMF_CF, S390_CPUMF_CFDIAG, S390_CPUMF_SF,
S390_SYSFS_PAI_CRYPTO and S390_SYSFS_PAI_EXT.
No functional change.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Add a check to detect Processor Activity Instrumentation (PAI)
Extension 1 facility unit.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Add a check to detect Processor Activity Instrumentation (PAI)
Extension 1 facility unit. This covers the counter set for
Neural Network Processing Assist (NNPA) counters.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Add a function to detect the existence of the CPU Measurement Sampling
Facility on a system.
Add a function which extracts the CPU Measurement Sampling Facility
characteristics on a system, such as
- minimum sample speed
- maximum sample speed
- current CPU speed
- basic sample size in bytes
- diagnostic sample size in bytes
Add a function to detect the existence of the CPU Measurement Sampling
Facility on a system and return the current sampling buffer management
characteristics, such as:
- minimum supported sampling buffer size
- maximum supported sampling buffer size
Add a function to detect the existence of the CPU Measurement Counting
Facility on a system.
Add a function which extracts the CPU Measurement Counting Facility
characteristics on a system, such as
- counter first version number
- counter second version number
- counter set authorization level
Add a function the returm the PMU type number of a CPU Measurement
Facility device driver. These numbers may vary between boots.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
