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| author | Hendrik Brueckner <brueckner@linux.vnet.ibm.com> | 2013-12-13 14:42:44 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-12-16 17:38:00 +0400 |
| commit | 7e75fc3ff4cffd90684816d69838f8730ac3e072 (patch) | |
| tree | b78e522d5eb48f898972e0b1ea5710c0c1bfc2c4 /arch/s390/kernel/perf_event.c | |
| parent | dd127b3b977b81eab58d1d7ee037195cf0bbeba7 (diff) | |
| download | linux-7e75fc3ff4cffd90684816d69838f8730ac3e072.tar.xz | |
s390/cpum_sf: Add raw data sampling to support the diagnostic-sampling function
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 <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/perf_event.c')
| -rw-r--r-- | arch/s390/kernel/perf_event.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/arch/s390/kernel/perf_event.c b/arch/s390/kernel/perf_event.c index 60a68261d091..91aa215f947f 100644 --- a/arch/s390/kernel/perf_event.c +++ b/arch/s390/kernel/perf_event.c @@ -139,16 +139,21 @@ static void print_debug_sf(void) int cpu = smp_processor_id(); memset(&si, 0, sizeof(si)); - if (qsi(&si)) { - pr_err("CPU[%i]: CPM_SF: qsi failed\n"); + if (qsi(&si)) return; - } - pr_info("CPU[%i]: CPM_SF: as=%i es=%i cs=%i bsdes=%i dsdes=%i" - " min=%i max=%i cpu_speed=%i tear=%p dear=%p\n", - cpu, si.as, si.es, si.cs, si.bsdes, si.dsdes, - si.min_sampl_rate, si.max_sampl_rate, si.cpu_speed, - si.tear, si.dear); + pr_info("CPU[%i] CPUM_SF: basic=%i diag=%i min=%i max=%i cpu_speed=%i\n", + cpu, si.as, si.ad, si.min_sampl_rate, si.max_sampl_rate, + si.cpu_speed); + + if (si.as) + pr_info("CPU[%i] CPUM_SF: Basic-sampling: a=%i e=%i c=%i" + " bsdes=%i tear=%p dear=%p\n", cpu, + si.as, si.es, si.cs, si.bsdes, si.tear, si.dear); + if (si.ad) + pr_info("CPU[%i] CPUM_SF: Diagnostic-sampling: a=%i e=%i c=%i" + " dsdes=%i tear=%p dear=%p\n", cpu, + si.ad, si.ed, si.cd, si.dsdes, si.tear, si.dear); } void perf_event_print_debug(void) |