On Thu, 20 Dec 2018 at 23:04, Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote:
>
> On Thu, 20 Dec 2018 at 15:17, Vincent Guittot
> <vincent.guittot@xxxxxxxxxx> wrote:
> >
> > Use the new pm runtime interface to get the accounted suspended time:
> > pm_runtime_accounted_time_get()
>
> pm_runtime_suspended_time()
>
> This change also makes quite some nice cleanups to the code, which is
> mostly because of converting to the new runtime PM API. I think the
> changelog deserves to state that, in some simple way.
ok
>
> >
> > Signed-off-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
>
> Other than the minor things above:
>
> Reviewed-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
>
> Kind regards
> Uffe
>
>
> > ---
> > drivers/gpu/drm/i915/i915_pmu.c | 16 ++++++----------
> > drivers/gpu/drm/i915/i915_pmu.h | 4 ++--
> > 2 files changed, 8 insertions(+), 12 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c
> > index d6c8f8f..3f76f60 100644
> > --- a/drivers/gpu/drm/i915/i915_pmu.c
> > +++ b/drivers/gpu/drm/i915/i915_pmu.c
> > @@ -5,6 +5,7 @@
> > */
> >
> > #include <linux/irq.h>
> > +#include <linux/pm_runtime.h>
> > #include "i915_pmu.h"
> > #include "intel_ringbuffer.h"
> > #include "i915_drv.h"
> > @@ -478,7 +479,6 @@ static u64 get_rc6(struct drm_i915_private *i915)
> > * counter value.
> > */
> > spin_lock_irqsave(&i915->pmu.lock, flags);
> > - spin_lock(&kdev->power.lock);
> >
> > /*
> > * After the above branch intel_runtime_pm_get_if_in_use failed
> > @@ -491,16 +491,13 @@ static u64 get_rc6(struct drm_i915_private *i915)
> > * suspended and if not we cannot do better than report the last
> > * known RC6 value.
> > */
> > - if (kdev->power.runtime_status == RPM_SUSPENDED) {
> > - if (!i915->pmu.sample[__I915_SAMPLE_RC6_ESTIMATED].cur)
> > - i915->pmu.suspended_jiffies_last =
> > - kdev->power.suspended_jiffies;
> > + if (pm_runtime_status_suspended(kdev)) {
> > + val = pm_runtime_suspended_time(kdev);
> >
> > - val = kdev->power.suspended_jiffies -
> > - i915->pmu.suspended_jiffies_last;
> > - val += jiffies - kdev->power.accounting_timestamp;
> > + if (!i915->pmu.sample[__I915_SAMPLE_RC6_ESTIMATED].cur)
> > + i915->pmu.suspended_time_last = val;
> >
> > - val = jiffies_to_nsecs(val);
> > + val -= i915->pmu.suspended_time_last;
> > val += i915->pmu.sample[__I915_SAMPLE_RC6].cur;
> >
> > i915->pmu.sample[__I915_SAMPLE_RC6_ESTIMATED].cur = val;
> > @@ -510,7 +507,6 @@ static u64 get_rc6(struct drm_i915_private *i915)
> > val = i915->pmu.sample[__I915_SAMPLE_RC6].cur;
> > }
> >
> > - spin_unlock(&kdev->power.lock);
> > spin_unlock_irqrestore(&i915->pmu.lock, flags);
> > }
> >
> > diff --git a/drivers/gpu/drm/i915/i915_pmu.h b/drivers/gpu/drm/i915/i915_pmu.h
> > index 7f164ca..3dc2a30 100644
> > --- a/drivers/gpu/drm/i915/i915_pmu.h
> > +++ b/drivers/gpu/drm/i915/i915_pmu.h
> > @@ -95,9 +95,9 @@ struct i915_pmu {
> > */
> > struct i915_pmu_sample sample[__I915_NUM_PMU_SAMPLERS];
> > /**
> > - * @suspended_jiffies_last: Cached suspend time from PM core.
> > + * @suspended_time_last: Cached suspend time from PM core.
> > */
> > - unsigned long suspended_jiffies_last;
> > + u64 suspended_time_last;
> > /**
> > * @i915_attr: Memory block holding device attributes.
> > */
> > --
> > 2.7.4
> >
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