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75bcb8776d
kernel_optimize_test/tools/perf/arch
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Adrian Hunter 75bcb8776d perf intel-pt: Fix recording PEBS-via-PT with registers 
When recording PEBS-via-PT, the kernel will not accept the intel_pt
event with register sampling e.g.

 # perf record --kcore -c 10000 -e '{intel_pt/branch=0/,branch-loads/aux-output/ppp}' -I -- ls -l
 Error:
 intel_pt/branch=0/: PMU Hardware doesn't support sampling/overflow-interrupts. Try 'perf stat'

Fix by suppressing register sampling on the intel_pt evsel.

Committer notes:

Adrian informed that this is only available from Tremont onwards, so on
older processors the error continues the same as before.

Fixes: 9e64cefe43 ("perf intel-pt: Process options for PEBS event synthesis")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Luwei Kang <luwei.kang@intel.com>
Link: http://lore.kernel.org/lkml/20200630133935.11150-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-07-06 09:03:39 -03:00
..
alpha
arc/annotate
arm perf record: Respect --no-switch-events 2020-05-28 11:33:36 -03:00
arm64 perf libdw: Fix off-by 1 relative directory includes 2020-06-01 12:24:23 -03:00
csky perf tools: Avoid 'sample_reg_masks' being const + weak 2019-10-10 09:29:33 -03:00
mips
nds32 perf tools: Rename build libperf to perf 2019-02-14 15:18:08 -03:00
parisc
powerpc perf libdw: Fix off-by 1 relative directory includes 2020-06-01 12:24:23 -03:00
riscv perf tools: Avoid 'sample_reg_masks' being const + weak 2019-10-10 09:29:33 -03:00
s390 perf evsel: Rename perf_evsel__{str,int}val() and other tracepoint field metehods to to evsel__*() 2020-05-05 16:35:30 -03:00
sh treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
sparc treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
x86 perf intel-pt: Fix recording PEBS-via-PT with registers 2020-07-06 09:03:39 -03:00
xtensa treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
Build perf tools: Rename build libperf to perf 2019-02-14 15:18:08 -03:00
common.c perf debug: Remove needless include directives from debug.h 2019-08-31 19:10:19 -03:00
common.h perf env: Remove env.h from other headers where just a fwd decl is needed 2019-08-31 19:10:40 -03:00