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| author | Kan Liang <kan.liang@linux.intel.com> | 2019-05-14 13:19:33 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-05-16 14:17:12 -0300 |
| commit | af785e75bf616704cab031e66403b6adcf5b700a (patch) | |
| tree | 81ed2903ef6d25c9195a6f50f6665da321c9a5ac /tools/perf/util/perf_regs.c | |
| parent | aeea9062d949584ac1f2f9a20f0e5ed306539a3e (diff) | |
| download | lwn-af785e75bf616704cab031e66403b6adcf5b700a.tar.gz lwn-af785e75bf616704cab031e66403b6adcf5b700a.zip | |
perf parse-regs: Add generic support for arch__intr/user_reg_mask()
There may be different register mask for use with intr or user on some
platforms, e.g. Icelake.
Add weak functions arch__intr_reg_mask() and arch__user_reg_mask() to
return intr and user register mask respectively.
Check mask before printing or comparing the register name.
Generic code always return PERF_REGS_MASK. No functional change.
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1557865174-56264-2-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/perf_regs.c')
| -rw-r--r-- | tools/perf/util/perf_regs.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/util/perf_regs.c b/tools/perf/util/perf_regs.c index 2acfcc527cac..2774cec1f15f 100644 --- a/tools/perf/util/perf_regs.c +++ b/tools/perf/util/perf_regs.c @@ -13,6 +13,16 @@ int __weak arch_sdt_arg_parse_op(char *old_op __maybe_unused, return SDT_ARG_SKIP; } +uint64_t __weak arch__intr_reg_mask(void) +{ + return PERF_REGS_MASK; +} + +uint64_t __weak arch__user_reg_mask(void) +{ + return PERF_REGS_MASK; +} + #ifdef HAVE_PERF_REGS_SUPPORT int perf_reg_value(u64 *valp, struct regs_dump *regs, int id) { |