linux-toradex.git/arch/s390/kernel/perf_event.c, branch v4.3.1

s390/perf: make print_debug_cf() static

2014-03-14T11:59:32+00:00

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/cpum_sf: fix printk format warnings

2014-01-16T15:40:16+00:00

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Martin Schwidefsky

s390: use IS_ENABLED to check if a CONFIG is set to y or m

2013-12-16T13:38:04+00:00

This is shorter and should be used instead of the longer form
which checks for both possible config options.

Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390/cpum_sf: Add raw data sampling to support the diagnostic-sampling function

2013-12-16T13:38:00+00:00

Also support the diagnostic-sampling function in addition to the basic-sampling
function.  Diagnostic-sampling data entries contain hardware model specific
sampling data and additional programs are required to analyze the data.

To deliver diagnostic-sampling, as well, as basis-sampling data entries to user
space, introduce support for sampling "raw data".  If this particular perf
sampling type (PERF_SAMPLE_RAW) is used, sampling data entries are copied
to user space.  External programs can then analyze these data.

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Martin Schwidefsky

s390/cpum_sf: Detect KVM guest samples

2013-12-16T13:37:59+00:00

The host-program-parameter (hpp) value of basic sample-data-entries designates
a SIE control block that is set by the LPP instruction in sie64a().
Non-zero values indicate guest samples, a value of zero indicates a host sample.

For perf samples, host and guest samples are distinguished using particular
PERF_MISC_* flags.  The perf layer calls perf_misc_flags() to set the flags
based on the pt_regs content.  For each sample-data-entry, the cpum_sf PMU
creates a pt_regs structure with the sample-data information.  An additional
flag structure is added to easily distinguish between host and guest samples.

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Martin Schwidefsky

s390/perf: Add service level information for CPU-Measurement Facilities

2013-12-16T13:37:53+00:00

Register a service level handler to report information about available
CPU-Measurement facilities.

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Martin Schwidefsky

s390/perf,oprofile: Share sampling facility

2013-12-16T13:37:52+00:00

Introduce reserve/release functions to share the sampling facility
between perf and oprofile.
Also improve error handling for the sampling facility support in perf.

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Martin Schwidefsky

s390/perf: add support for the CPU-Measurement Sampling Facility

2013-12-16T13:37:51+00:00

Introduce a perf PMU, "cpum_sf", to support the CPU-Measurement
Sampling Facility.  You can control the sampling facility through
this perf PMU interfaces.  Perf sampling events are created for
hardware samples.

For details about the CPU-Measurement Sampling Facility, see
"The Load-Program-Parameter and the CPU-Measurement Facilities" (SA23-2260).

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Martin Schwidefsky

s390/cpum_cf: Export event names in sysfs

2013-12-16T13:37:50+00:00

Provide PMU event attributes for supported counters and export their symbolic
names to the sysfs "events" directory.

See the /sys/devices/cpum_cf/events/ directory for a list of available counters.
Note that you might require counter set authorizations for the LPAR to use them.

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Martin Schwidefsky

s390/perf: Remove print_hex_dump_bytes() debug output

2013-09-04T15:19:04+00:00

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Heiko Carstens