ACK: [SRU][B][D][Patch 0/2] Enhanced CPU-MF hardware counters - kernel part (LP: 1836860)

[Connor Kuehl]

On 7/24/19 9:30 AM, frank.heimes at canonical.com wrote:
> Buglink: https://bugs.launchpad.net/bugs/1836860
> 
> SRU Justification:
> 
> [Impact]
> 
> * Enhanced CPU-MF hardware counters - fix lack of support of new hardware
> 
> [Fix]
> 
> * 46a984ffb86c8542fa510656fa8cb33befe8ee8f 46a984ff "s390/cpum_cf: Add support for CPU-MF SVN 6"
> 
> * 820bace734722715c643dcb5f74b502cb912d4eb 820bace "s390/cpumf: Add extended counter set definitions for model 8561 and 8562"
> 
> [Test Case]
> 
> * try CPU-Measurement Facility counter on z14 and next generation hardware - only IBM can do that now
> 
> [Regression Potential] 
> 
> * The regression potential can be considered as low since these changes are limited to arch/s390
> 
> * do only touch perf_* code
> 
> * and mainly add code (rather than modify or remove)
> 
> [Other Info]
> 
> * first commit is taken from 5.2, second from 5.3-rc1
> 
> Thomas Richter (2):
>   From: Thomas Richter <tmricht at linux.ibm.com>
>   From: Thomas Richter <tmricht at linux.ibm.com>
> 
>  arch/s390/kernel/perf_cpum_cf.c        |  15 +++--
>  arch/s390/kernel/perf_cpum_cf_events.c | 109 +++++++++++++++++++++++----------
>  2 files changed, 86 insertions(+), 38 deletions(-)
> 

Acked-by: Connor Kuehl <connor.kuehl at canonical.com>