[SRU,B,D,0/2] Enhanced CPU-MF hardware counters - kernel part (LP: 1836860)
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  • Enhanced CPU-MF hardware counters - kernel part (LP: 1836860)
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Frank Heimes July 24, 2019, 4:30 p.m. UTC
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@linux.ibm.com>
  From: Thomas Richter <tmricht@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(-)

Comments

Connor Kuehl Aug. 8, 2019, 6:18 p.m. UTC | #1
On 7/24/19 9:30 AM, frank.heimes@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@linux.ibm.com>
>   From: Thomas Richter <tmricht@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@canonical.com>
Stefan Bader Aug. 12, 2019, 1:57 p.m. UTC | #2
On 24.07.19 18:30, frank.heimes@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@linux.ibm.com>
>   From: Thomas Richter <tmricht@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(-)
> 
The series you request, nominate for you should.

Acked-by: Stefan Bader <stefan.bader@canonical.com>
Khaled Elmously Aug. 13, 2019, 5:37 a.m. UTC | #3
On 2019-07-24 18:30:33 , frank.heimes@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@linux.ibm.com>
>   From: Thomas Richter <tmricht@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(-)
> 
> -- 
> 2.7.4
> 
> 
> -- 
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