Event Based Branches currenly available on POWER8.
so we can skip them on other CPUs.
I've found that at least one test loops forever
on 970MP (cycles_with_freeze_test).
Signed-off-by: Denis Kirjanov <k...@linux-powerpc.org>
---
.../selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c | 2 ++
.../selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c | 2 ++
.../powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c | 2 ++
tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c | 2 ++
.../selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c | 2 ++
.../selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c | 2 ++
tools/testing/selftests/powerpc/pmu/ebb/ebb.c | 13 +++++++++++++
tools/testing/selftests/powerpc/pmu/ebb/ebb.h | 1 +
tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c | 2 ++
.../selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c | 2 ++
.../selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c | 2 ++
.../selftests/powerpc/pmu/ebb/event_attributes_test.c | 2 ++
tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c | 2 ++
.../selftests/powerpc/pmu/ebb/instruction_count_test.c | 2 ++
.../testing/selftests/powerpc/pmu/ebb/lost_exception_test.c | 2 ++
.../testing/selftests/powerpc/pmu/ebb/multi_counter_test.c | 2 ++
.../selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c | 2 ++
tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c | 2 ++
.../testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c | 2 ++
.../testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c | 2 ++
tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c | 2 ++
.../powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c | 2 ++
.../selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c | 2 ++
23 files changed, 56 insertions(+)
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c
index 66ea765..94110b1 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c
@@ -63,6 +63,8 @@ int back_to_back_ebbs(void)
{
struct event event;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&event, 0x1001e, "cycles");
event_leader_ebb_init(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c
index 0f0423d..ac18cf6 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c
@@ -20,6 +20,8 @@ int close_clears_pmcc(void)
{
struct event event;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&event, 0x1001e, "cycles");
event_leader_ebb_init(&event);
diff --git
a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c
index d3ed64d..f0632e7 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c
@@ -43,6 +43,8 @@ int cpu_event_pinned_vs_ebb(void)
int cpu, rc;
pid_t pid;
+ SKIP_IF(!ebb_is_supported());
+
cpu = pick_online_cpu();
FAIL_IF(cpu < 0);
FAIL_IF(bind_to_cpu(cpu));
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c
index 8590fc1..7c57a8d 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c
@@ -16,6 +16,8 @@ int cycles(void)
{
struct event event;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&event, 0x1001e, "cycles");
event_leader_ebb_init(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c
index 754b3f2..ecf5ee3 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c
@@ -56,6 +56,8 @@ int cycles_with_freeze(void)
uint64_t val;
bool fc_cleared;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&event, 0x1001e, "cycles");
event_leader_ebb_init(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c
index d43029b..c0faba5 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c
@@ -26,6 +26,8 @@ int cycles_with_mmcr2(void)
int i;
bool bad_mmcr2;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&event, 0x1001e, "cycles");
event_leader_ebb_init(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
b/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
index d7a72ce..a252637 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
@@ -319,6 +319,19 @@ void ebb_global_disable(void)
mb();
}
+#define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF)
+bool ebb_is_supported(void)
+{
+ unsigned long pvr;
+
+ __asm__ __volatile__("mfpvr %0" : "=b"(pvr));
+ /* EBB requires at least POWER8 */
+ if (PVR_VER(pvr) >= 0x004D)
+ return true;
+
+ return false;
+}
+
void event_ebb_init(struct event *e)
{
e->attr.config |= (1ull << 63);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
index e44eee5..f87e761 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
@@ -52,6 +52,7 @@ void standard_ebb_callee(void);
int ebb_event_enable(struct event *e);
void ebb_global_enable(void);
void ebb_global_disable(void);
+bool ebb_is_supported(void);
void ebb_freeze_pmcs(void);
void ebb_unfreeze_pmcs(void);
void event_ebb_init(struct event *e);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c
index c45f948..1e7b7fe 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c
@@ -47,6 +47,8 @@ int ebb_on_child(void)
struct event event;
pid_t pid;
+ SKIP_IF(!ebb_is_supported());
+
FAIL_IF(pipe(read_pipe.fds) == -1);
FAIL_IF(pipe(write_pipe.fds) == -1);
diff --git
a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c
index 11acf1d..a991d2e 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c
@@ -54,6 +54,8 @@ int ebb_on_willing_child(void)
struct event event;
pid_t pid;
+ SKIP_IF(!ebb_is_supported());
+
FAIL_IF(pipe(read_pipe.fds) == -1);
FAIL_IF(pipe(write_pipe.fds) == -1);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c
index be4dd5a..af20a2b 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c
@@ -41,6 +41,8 @@ int ebb_vs_cpu_event(void)
int cpu, rc;
pid_t pid;
+ SKIP_IF(!ebb_is_supported());
+
cpu = pick_online_cpu();
FAIL_IF(cpu < 0);
FAIL_IF(bind_to_cpu(cpu));
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c
index 7e78153..7762ab2 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c
@@ -16,6 +16,8 @@ int event_attributes(void)
{
struct event event, leader;
+ SKIP_IF(!ebb_is_supported());
+
event_init(&event, 0x1001e);
event_leader_ebb_init(&event);
/* Expected to succeed */
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c
index 9e7af6e..167135b 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c
@@ -44,6 +44,8 @@ int fork_cleanup(void)
{
pid_t pid;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&event, 0x1001e, "cycles");
event_leader_ebb_init(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c
index f8190fa..5da3551 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c
@@ -111,6 +111,8 @@ int instruction_count(void)
struct event event;
uint64_t overhead;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&event, 0x400FA, "PM_RUN_INST_CMPL");
event_leader_ebb_init(&event);
event.attr.exclude_kernel = 1;
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c
index 0c9dd9b..eb8acb7 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c
@@ -23,6 +23,8 @@ static int test_body(void)
int i, orig_period, max_period;
struct event event;
+ SKIP_IF(!ebb_is_supported());
+
/* We use PMC4 to make sure the kernel switches all counters correctly
*/
event_init_named(&event, 0x40002, "instructions");
event_leader_ebb_init(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c
index 67d78af..6ff8c8f 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c
@@ -18,6 +18,8 @@ int multi_counter(void)
struct event events[6];
int i, group_fd;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&events[0], 0x1001C, "PM_CMPLU_STALL_THRD");
event_init_named(&events[1], 0x2D016, "PM_CMPLU_STALL_FXU");
event_init_named(&events[2], 0x30006, "PM_CMPLU_STALL_OTHER_CMPL");
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c
index b8dc371..037cb61 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c
@@ -79,6 +79,8 @@ int multi_ebb_procs(void)
pid_t pids[NR_CHILDREN];
int cpu, rc, i;
+ SKIP_IF(!ebb_is_supported());
+
cpu = pick_online_cpu();
FAIL_IF(cpu < 0);
FAIL_IF(bind_to_cpu(cpu));
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c
index 2f9bf8e..8341d77 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c
@@ -19,6 +19,8 @@ static int no_handler_test(void)
u64 val;
int i;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&event, 0x1001e, "cycles");
event_leader_ebb_init(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c
index 986500f..c5fa647 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c
@@ -58,6 +58,8 @@ static int test_body(void)
{
struct event event;
+ SKIP_IF(!ebb_is_supported());
+
event_init_named(&event, 0x1001e, "cycles");
event_leader_ebb_init(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
index a503fa7..c22860a 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
@@ -49,6 +49,8 @@ int pmc56_overflow(void)
{
struct event event;
+ SKIP_IF(!ebb_is_supported());
+
/* Use PMC2 so we set PMCjCE, which enables PMC5/6 */
event_init(&event, 0x2001e);
event_leader_ebb_init(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c
index 0cae66f..5b1188f 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c
@@ -18,6 +18,8 @@ int reg_access(void)
{
uint64_t val, expected;
+ SKIP_IF(!ebb_is_supported());
+
expected = 0x8000000100000000ull;
mtspr(SPRN_BESCR, expected);
val = mfspr(SPRN_BESCR);
diff --git
a/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c
index d56607e..1846f4e 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c
@@ -42,6 +42,8 @@ int task_event_pinned_vs_ebb(void)
pid_t pid;
int rc;
+ SKIP_IF(!ebb_is_supported());
+
FAIL_IF(pipe(read_pipe.fds) == -1);
FAIL_IF(pipe(write_pipe.fds) == -1);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c
b/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c
index eba3219..e3bc6e9 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c
@@ -40,6 +40,8 @@ int task_event_vs_ebb(void)
pid_t pid;
int rc;
+ SKIP_IF(!ebb_is_supported());
+
FAIL_IF(pipe(read_pipe.fds) == -1);
FAIL_IF(pipe(write_pipe.fds) == -1);
--
2.4.0
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