| Message ID | 20220514152032.758738-1-ulf.hansson@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/2] cpuidle: psci: Fix regression leading to no genpd governor | expand |
On Sat, May 14, 2022 at 8:50 PM Ulf Hansson <ulf.hansson@linaro.org> wrote: > > While factoring out the PM domain related code from PSCI domain driver into > a set of library functions, a regression when initializing the genpds got > introduced. More precisely, we fail to assign a genpd governor, so let's > fix this. > > Fixes: 9d976d6721df ("cpuidle: Factor-out power domain related code from PSCI domain driver") > Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Looks good to me. Reviewed-by: Anup Patel <anup@brainfault.org> Regards, Anup > --- > drivers/cpuidle/cpuidle-psci-domain.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c > index 755bbdfc5b82..3db4fca1172b 100644 > --- a/drivers/cpuidle/cpuidle-psci-domain.c > +++ b/drivers/cpuidle/cpuidle-psci-domain.c > @@ -52,7 +52,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi) > struct generic_pm_domain *pd; > struct psci_pd_provider *pd_provider; > struct dev_power_governor *pd_gov; > - int ret = -ENOMEM, state_count = 0; > + int ret = -ENOMEM; > > pd = dt_idle_pd_alloc(np, psci_dt_parse_state_node); > if (!pd) > @@ -71,7 +71,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi) > pd->flags |= GENPD_FLAG_ALWAYS_ON; > > /* Use governor for CPU PM domains if it has some states to manage. */ > - pd_gov = state_count > 0 ? &pm_domain_cpu_gov : NULL; > + pd_gov = pd->states ? &pm_domain_cpu_gov : NULL; > > ret = pm_genpd_init(pd, pd_gov, false); > if (ret) > -- > 2.25.1 >
On Sat, May 14, 2022 at 6:49 PM Anup Patel <anup@brainfault.org> wrote: > > On Sat, May 14, 2022 at 8:50 PM Ulf Hansson <ulf.hansson@linaro.org> wrote: > > > > While factoring out the PM domain related code from PSCI domain driver into > > a set of library functions, a regression when initializing the genpds got > > introduced. More precisely, we fail to assign a genpd governor, so let's > > fix this. > > > > Fixes: 9d976d6721df ("cpuidle: Factor-out power domain related code from PSCI domain driver") > > Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> > > Looks good to me. > > Reviewed-by: Anup Patel <anup@brainfault.org> > Ulf, do you want me to take this lot or is it going to be handled elsewhere? > > --- > > drivers/cpuidle/cpuidle-psci-domain.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c > > index 755bbdfc5b82..3db4fca1172b 100644 > > --- a/drivers/cpuidle/cpuidle-psci-domain.c > > +++ b/drivers/cpuidle/cpuidle-psci-domain.c > > @@ -52,7 +52,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi) > > struct generic_pm_domain *pd; > > struct psci_pd_provider *pd_provider; > > struct dev_power_governor *pd_gov; > > - int ret = -ENOMEM, state_count = 0; > > + int ret = -ENOMEM; > > > > pd = dt_idle_pd_alloc(np, psci_dt_parse_state_node); > > if (!pd) > > @@ -71,7 +71,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi) > > pd->flags |= GENPD_FLAG_ALWAYS_ON; > > > > /* Use governor for CPU PM domains if it has some states to manage. */ > > - pd_gov = state_count > 0 ? &pm_domain_cpu_gov : NULL; > > + pd_gov = pd->states ? &pm_domain_cpu_gov : NULL; > > > > ret = pm_genpd_init(pd, pd_gov, false); > > if (ret) > > -- > > 2.25.1 > >
On Wed, 18 May 2022 at 20:50, Rafael J. Wysocki <rafael@kernel.org> wrote: > > On Sat, May 14, 2022 at 6:49 PM Anup Patel <anup@brainfault.org> wrote: > > > > On Sat, May 14, 2022 at 8:50 PM Ulf Hansson <ulf.hansson@linaro.org> wrote: > > > > > > While factoring out the PM domain related code from PSCI domain driver into > > > a set of library functions, a regression when initializing the genpds got > > > introduced. More precisely, we fail to assign a genpd governor, so let's > > > fix this. > > > > > > Fixes: 9d976d6721df ("cpuidle: Factor-out power domain related code from PSCI domain driver") > > > Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> > > > > Looks good to me. > > > > Reviewed-by: Anup Patel <anup@brainfault.org> > > > > Ulf, do you want me to take this lot or is it going to be handled elsewhere? I appreciate it if you can pick both this and the second patch. Kind regards Uffe > > > > --- > > > drivers/cpuidle/cpuidle-psci-domain.c | 4 ++-- > > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > > > diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c > > > index 755bbdfc5b82..3db4fca1172b 100644 > > > --- a/drivers/cpuidle/cpuidle-psci-domain.c > > > +++ b/drivers/cpuidle/cpuidle-psci-domain.c > > > @@ -52,7 +52,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi) > > > struct generic_pm_domain *pd; > > > struct psci_pd_provider *pd_provider; > > > struct dev_power_governor *pd_gov; > > > - int ret = -ENOMEM, state_count = 0; > > > + int ret = -ENOMEM; > > > > > > pd = dt_idle_pd_alloc(np, psci_dt_parse_state_node); > > > if (!pd) > > > @@ -71,7 +71,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi) > > > pd->flags |= GENPD_FLAG_ALWAYS_ON; > > > > > > /* Use governor for CPU PM domains if it has some states to manage. */ > > > - pd_gov = state_count > 0 ? &pm_domain_cpu_gov : NULL; > > > + pd_gov = pd->states ? &pm_domain_cpu_gov : NULL; > > > > > > ret = pm_genpd_init(pd, pd_gov, false); > > > if (ret) > > > -- > > > 2.25.1 > > >
On Thu, May 19, 2022 at 3:01 PM Ulf Hansson <ulf.hansson@linaro.org> wrote: > > On Wed, 18 May 2022 at 20:50, Rafael J. Wysocki <rafael@kernel.org> wrote: > > > > On Sat, May 14, 2022 at 6:49 PM Anup Patel <anup@brainfault.org> wrote: > > > > > > On Sat, May 14, 2022 at 8:50 PM Ulf Hansson <ulf.hansson@linaro.org> wrote: > > > > > > > > While factoring out the PM domain related code from PSCI domain driver into > > > > a set of library functions, a regression when initializing the genpds got > > > > introduced. More precisely, we fail to assign a genpd governor, so let's > > > > fix this. > > > > > > > > Fixes: 9d976d6721df ("cpuidle: Factor-out power domain related code from PSCI domain driver") > > > > Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> > > > > > > Looks good to me. > > > > > > Reviewed-by: Anup Patel <anup@brainfault.org> > > > > > > > Ulf, do you want me to take this lot or is it going to be handled elsewhere? > > I appreciate it if you can pick both this and the second patch. Both applied, thanks!
diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c index 755bbdfc5b82..3db4fca1172b 100644 --- a/drivers/cpuidle/cpuidle-psci-domain.c +++ b/drivers/cpuidle/cpuidle-psci-domain.c @@ -52,7 +52,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi) struct generic_pm_domain *pd; struct psci_pd_provider *pd_provider; struct dev_power_governor *pd_gov; - int ret = -ENOMEM, state_count = 0; + int ret = -ENOMEM; pd = dt_idle_pd_alloc(np, psci_dt_parse_state_node); if (!pd) @@ -71,7 +71,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi) pd->flags |= GENPD_FLAG_ALWAYS_ON; /* Use governor for CPU PM domains if it has some states to manage. */ - pd_gov = state_count > 0 ? &pm_domain_cpu_gov : NULL; + pd_gov = pd->states ? &pm_domain_cpu_gov : NULL; ret = pm_genpd_init(pd, pd_gov, false); if (ret)
While factoring out the PM domain related code from PSCI domain driver into a set of library functions, a regression when initializing the genpds got introduced. More precisely, we fail to assign a genpd governor, so let's fix this. Fixes: 9d976d6721df ("cpuidle: Factor-out power domain related code from PSCI domain driver") Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> --- drivers/cpuidle/cpuidle-psci-domain.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)