On Thu, 2 Apr 2020 11:44:41 -0400
Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote:
> Two minimal tests:
> - our own CPU should be running when we check ourselves
> - a CPU should at least have some times with a not running
> indication. To speed things up we stop CPU1
>
> Also rename smp_cpu_running to smp_sense_running_status.
>
> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
> ---
> lib/s390x/smp.c | 2 +-
> lib/s390x/smp.h | 2 +-
> s390x/smp.c | 15 +++++++++++++++
> 3 files changed, 17 insertions(+), 2 deletions(-)
>
(...)
> diff --git a/s390x/smp.c b/s390x/smp.c
> index 79cdc1f..4450aff 100644
> --- a/s390x/smp.c
> +++ b/s390x/smp.c
> @@ -210,6 +210,20 @@ static void test_emcall(void)
> report_prefix_pop();
> }
>
> +static void test_sense_running(void)
> +{
> + report_prefix_push("sense_running");
> + /* we are running */
Maybe /* we (CPU0) are running */ ?
> + report(smp_sense_running_status(0), "CPU0 sense claims running");
> + /* make sure CPU is stopped to speed up the not running case */
"the target CPU" ?
> + smp_cpu_stop(1);
> + /* Make sure to have at least one time with a not running indication */
> + while(smp_sense_running_status(1));
> + report(true, "CPU1 sense claims not running");
> + report_prefix_pop();
> +}
> +
> +
> /* Used to dirty registers of cpu #1 before it is reset */
> static void test_func_initial(void)
> {
(...)
Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
