Files
linux_media/tools/perf/arch/x86/tests/arch-tests.c
Ravi Bangoria 78075d9475 perf test: Add selftest to test IBS invocation via core pmu events
IBS pmu can be invoked via fixed set of core pmu events with 'precise_ip'
set to 1. Add a simple event open test for all these events.

Without kernel fix:
  $ sudo ./perf test -vv 76
   76: AMD IBS via core pmu                                      :
  --- start ---
  test child forked, pid 6553
  Using CPUID AuthenticAMD-25-1-1
  type: 0x0, config: 0x0, fd: 3  -  Pass
  type: 0x0, config: 0x1, fd: -1  -  Pass
  type: 0x4, config: 0x76, fd: -1  -  Fail
  type: 0x4, config: 0xc1, fd: -1  -  Fail
  type: 0x4, config: 0x12, fd: -1  -  Pass
  test child finished with -1
  ---- end ----
  AMD IBS via core pmu: FAILED!

With kernel fix:
  $ sudo ./perf test -vv 76
   76: AMD IBS via core pmu                                      :
  --- start ---
  test child forked, pid 7526
  Using CPUID AuthenticAMD-25-1-1
  type: 0x0, config: 0x0, fd: 3  -  Pass
  type: 0x0, config: 0x1, fd: -1  -  Pass
  type: 0x4, config: 0x76, fd: 3  -  Pass
  type: 0x4, config: 0xc1, fd: 3  -  Pass
  type: 0x4, config: 0x12, fd: -1  -  Pass
  test child finished with 0
  ---- end ----
  AMD IBS via core pmu: Ok

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230504110003.2548-5-ravi.bangoria@amd.com
2023-05-08 10:58:31 +02:00

42 lines
993 B
C

// SPDX-License-Identifier: GPL-2.0
#include <string.h>
#include "tests/tests.h"
#include "arch-tests.h"
#ifdef HAVE_AUXTRACE_SUPPORT
DEFINE_SUITE("x86 instruction decoder - new instructions", insn_x86);
static struct test_case intel_pt_tests[] = {
TEST_CASE("Intel PT packet decoder", intel_pt_pkt_decoder),
TEST_CASE("Intel PT hybrid CPU compatibility", intel_pt_hybrid_compat),
{ .name = NULL, }
};
struct test_suite suite__intel_pt = {
.desc = "Intel PT",
.test_cases = intel_pt_tests,
};
#endif
#if defined(__x86_64__)
DEFINE_SUITE("x86 bp modify", bp_modify);
#endif
DEFINE_SUITE("x86 Sample parsing", x86_sample_parsing);
DEFINE_SUITE("AMD IBS via core pmu", amd_ibs_via_core_pmu);
struct test_suite *arch_tests[] = {
#ifdef HAVE_DWARF_UNWIND_SUPPORT
&suite__dwarf_unwind,
#endif
#ifdef HAVE_AUXTRACE_SUPPORT
&suite__insn_x86,
&suite__intel_pt,
#endif
#if defined(__x86_64__)
&suite__bp_modify,
#endif
&suite__x86_sample_parsing,
&suite__amd_ibs_via_core_pmu,
NULL,
};