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perf parse-regs: Add generic support for arch__intr/user_reg_mask()

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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>
This commit is contained in:
Kan Liang
2019-05-14 13:19:33 -07:00
committed by Arnaldo Carvalho de Melo
parent aeea9062d9
commit af785e75bf
3 changed files with 22 additions and 3 deletions
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10
tools/perf/util/perf_regs.c
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@@ -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)
{