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authorKan Liang <kan.liang@linux.intel.com>2019-05-14 13:19:33 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-05-16 14:17:12 -0300
commitaf785e75bf616704cab031e66403b6adcf5b700a (patch)
tree81ed2903ef6d25c9195a6f50f6665da321c9a5ac /tools/perf/util/perf_regs.h
parentaeea9062d949584ac1f2f9a20f0e5ed306539a3e (diff)
downloadlinux-af785e75bf616704cab031e66403b6adcf5b700a.tar.gz
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.h')
-rw-r--r--tools/perf/util/perf_regs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/perf_regs.h b/tools/perf/util/perf_regs.h
index 1a15a4bfc28d..cb9c246c8962 100644
--- a/tools/perf/util/perf_regs.h
+++ b/tools/perf/util/perf_regs.h
@@ -23,6 +23,8 @@ enum {
 };
 
 int arch_sdt_arg_parse_op(char *old_op, char **new_op);
+uint64_t arch__intr_reg_mask(void);
+uint64_t arch__user_reg_mask(void);
 
 #ifdef HAVE_PERF_REGS_SUPPORT
 #include <perf_regs.h>