Message ID | 20200116120513.2244-3-frankja@linux.ibm.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | s390x: smp: Improve smp code and reset checks | expand |
On 16.01.20 13:05, Janosch Frank wrote: > Let's stop and start instead of using setup to run a function on a > cpu. > > Signed-off-by: Janosch Frank <frankja@linux.ibm.com> > Reviewed-by: Thomas Huth <thuth@redhat.com> > Reviewed-by: Cornelia Huck <cohuck@redhat.com> > --- > s390x/smp.c | 20 +++++++++++++------- > 1 file changed, 13 insertions(+), 7 deletions(-) > > diff --git a/s390x/smp.c b/s390x/smp.c > index 02204fd..d430638 100644 > --- a/s390x/smp.c > +++ b/s390x/smp.c > @@ -47,7 +47,7 @@ static void test_start(void) > psw.mask = extract_psw_mask(); > psw.addr = (unsigned long)test_func; > > - smp_cpu_setup(1, psw); > + smp_cpu_start(1, psw); > wait_for_flag(); > report(1, "start"); > } > @@ -132,9 +132,8 @@ static void test_ecall(void) > > report_prefix_push("ecall"); > testflag = 0; > - smp_cpu_destroy(1); > > - smp_cpu_setup(1, psw); > + smp_cpu_start(1, psw); > wait_for_flag(); > testflag = 0; > sigp(1, SIGP_EXTERNAL_CALL, 0, NULL); > @@ -167,9 +166,8 @@ static void test_emcall(void) > > report_prefix_push("emcall"); > testflag = 0; > - smp_cpu_destroy(1); > > - smp_cpu_setup(1, psw); > + smp_cpu_start(1, psw); > wait_for_flag(); > testflag = 0; > sigp(1, SIGP_EMERGENCY_SIGNAL, 0, NULL); > @@ -187,7 +185,7 @@ static void test_reset_initial(void) > psw.addr = (unsigned long)test_func; > > report_prefix_push("reset initial"); > - smp_cpu_setup(1, psw); > + smp_cpu_start(1, psw); > > sigp_retry(1, SIGP_INITIAL_CPU_RESET, 0, NULL); > sigp(1, SIGP_STORE_STATUS_AT_ADDRESS, (uintptr_t)status, NULL); > @@ -218,7 +216,7 @@ static void test_reset(void) > psw.addr = (unsigned long)test_func; > > report_prefix_push("cpu reset"); > - smp_cpu_setup(1, psw); > + smp_cpu_start(1, psw); > > sigp_retry(1, SIGP_CPU_RESET, 0, NULL); > report(smp_cpu_stopped(1), "cpu stopped"); > @@ -227,6 +225,7 @@ static void test_reset(void) > > int main(void) > { > + struct psw psw; > report_prefix_push("smp"); > > if (smp_query_num_cpus() == 1) { > @@ -234,6 +233,12 @@ int main(void) > goto done; > } > > + /* Setting up the cpu to give it a stack and lowcore */ > + psw.mask = extract_psw_mask(); > + psw.addr = (unsigned long)cpu_loop; > + smp_cpu_setup(1, psw); > + smp_cpu_stop(1); > + > test_start(); > test_stop(); > test_stop_store_status(); > @@ -242,6 +247,7 @@ int main(void) > test_emcall(); > test_reset(); > test_reset_initial(); > + smp_cpu_destroy(1); > > done: > report_prefix_pop(); > Acked-by: David Hildenbrand <david@redhat.com>
On 1/16/20 1:18 PM, David Hildenbrand wrote: > On 16.01.20 13:05, Janosch Frank wrote: >> Let's stop and start instead of using setup to run a function on a >> cpu. >> >> Signed-off-by: Janosch Frank <frankja@linux.ibm.com> >> Reviewed-by: Thomas Huth <thuth@redhat.com> >> Reviewed-by: Cornelia Huck <cohuck@redhat.com> >> --- >> s390x/smp.c | 20 +++++++++++++------- >> 1 file changed, 13 insertions(+), 7 deletions(-) >> >> diff --git a/s390x/smp.c b/s390x/smp.c >> index 02204fd..d430638 100644 >> --- a/s390x/smp.c >> +++ b/s390x/smp.c >> @@ -47,7 +47,7 @@ static void test_start(void) >> psw.mask = extract_psw_mask(); >> psw.addr = (unsigned long)test_func; >> >> - smp_cpu_setup(1, psw); >> + smp_cpu_start(1, psw); >> wait_for_flag(); >> report(1, "start"); >> } >> @@ -132,9 +132,8 @@ static void test_ecall(void) >> >> report_prefix_push("ecall"); >> testflag = 0; >> - smp_cpu_destroy(1); >> >> - smp_cpu_setup(1, psw); >> + smp_cpu_start(1, psw); >> wait_for_flag(); >> testflag = 0; >> sigp(1, SIGP_EXTERNAL_CALL, 0, NULL); >> @@ -167,9 +166,8 @@ static void test_emcall(void) >> >> report_prefix_push("emcall"); >> testflag = 0; >> - smp_cpu_destroy(1); >> >> - smp_cpu_setup(1, psw); >> + smp_cpu_start(1, psw); >> wait_for_flag(); >> testflag = 0; >> sigp(1, SIGP_EMERGENCY_SIGNAL, 0, NULL); >> @@ -187,7 +185,7 @@ static void test_reset_initial(void) >> psw.addr = (unsigned long)test_func; >> >> report_prefix_push("reset initial"); >> - smp_cpu_setup(1, psw); >> + smp_cpu_start(1, psw); >> >> sigp_retry(1, SIGP_INITIAL_CPU_RESET, 0, NULL); >> sigp(1, SIGP_STORE_STATUS_AT_ADDRESS, (uintptr_t)status, NULL); >> @@ -218,7 +216,7 @@ static void test_reset(void) >> psw.addr = (unsigned long)test_func; >> >> report_prefix_push("cpu reset"); >> - smp_cpu_setup(1, psw); >> + smp_cpu_start(1, psw); >> >> sigp_retry(1, SIGP_CPU_RESET, 0, NULL); >> report(smp_cpu_stopped(1), "cpu stopped"); >> @@ -227,6 +225,7 @@ static void test_reset(void) >> >> int main(void) >> { >> + struct psw psw; >> report_prefix_push("smp"); >> >> if (smp_query_num_cpus() == 1) { >> @@ -234,6 +233,12 @@ int main(void) >> goto done; >> } >> >> + /* Setting up the cpu to give it a stack and lowcore */ >> + psw.mask = extract_psw_mask(); >> + psw.addr = (unsigned long)cpu_loop; >> + smp_cpu_setup(1, psw); >> + smp_cpu_stop(1); >> + >> test_start(); >> test_stop(); >> test_stop_store_status(); >> @@ -242,6 +247,7 @@ int main(void) >> test_emcall(); >> test_reset(); >> test_reset_initial(); >> + smp_cpu_destroy(1); >> >> done: >> report_prefix_pop(); >> > > Acked-by: David Hildenbrand <david@redhat.com> Thanks!
diff --git a/s390x/smp.c b/s390x/smp.c index 02204fd..d430638 100644 --- a/s390x/smp.c +++ b/s390x/smp.c @@ -47,7 +47,7 @@ static void test_start(void) psw.mask = extract_psw_mask(); psw.addr = (unsigned long)test_func; - smp_cpu_setup(1, psw); + smp_cpu_start(1, psw); wait_for_flag(); report(1, "start"); } @@ -132,9 +132,8 @@ static void test_ecall(void) report_prefix_push("ecall"); testflag = 0; - smp_cpu_destroy(1); - smp_cpu_setup(1, psw); + smp_cpu_start(1, psw); wait_for_flag(); testflag = 0; sigp(1, SIGP_EXTERNAL_CALL, 0, NULL); @@ -167,9 +166,8 @@ static void test_emcall(void) report_prefix_push("emcall"); testflag = 0; - smp_cpu_destroy(1); - smp_cpu_setup(1, psw); + smp_cpu_start(1, psw); wait_for_flag(); testflag = 0; sigp(1, SIGP_EMERGENCY_SIGNAL, 0, NULL); @@ -187,7 +185,7 @@ static void test_reset_initial(void) psw.addr = (unsigned long)test_func; report_prefix_push("reset initial"); - smp_cpu_setup(1, psw); + smp_cpu_start(1, psw); sigp_retry(1, SIGP_INITIAL_CPU_RESET, 0, NULL); sigp(1, SIGP_STORE_STATUS_AT_ADDRESS, (uintptr_t)status, NULL); @@ -218,7 +216,7 @@ static void test_reset(void) psw.addr = (unsigned long)test_func; report_prefix_push("cpu reset"); - smp_cpu_setup(1, psw); + smp_cpu_start(1, psw); sigp_retry(1, SIGP_CPU_RESET, 0, NULL); report(smp_cpu_stopped(1), "cpu stopped"); @@ -227,6 +225,7 @@ static void test_reset(void) int main(void) { + struct psw psw; report_prefix_push("smp"); if (smp_query_num_cpus() == 1) { @@ -234,6 +233,12 @@ int main(void) goto done; } + /* Setting up the cpu to give it a stack and lowcore */ + psw.mask = extract_psw_mask(); + psw.addr = (unsigned long)cpu_loop; + smp_cpu_setup(1, psw); + smp_cpu_stop(1); + test_start(); test_stop(); test_stop_store_status(); @@ -242,6 +247,7 @@ int main(void) test_emcall(); test_reset(); test_reset_initial(); + smp_cpu_destroy(1); done: report_prefix_pop();