On Fri, 2014-03-07 at 20:08 -0300, Paulo Zanoni wrote: > From: Paulo Zanoni <[email protected]> > > The requirements_met variable was used to track two things: enabled > CRTCs and the power well. After the latest chagnes, we get a runtime > PM reference whenever we get any of the power domains, and we get > power domains when we enable CRTCs or the power well, so we should > already be covered, not needing this specific tracking. > > v2: - Rebase. > v3: - Rebase. > > Signed-off-by: Paulo Zanoni <[email protected]>
Reviewed-by: Imre Deak <[email protected]> > --- > drivers/gpu/drm/i915/i915_debugfs.c | 2 -- > drivers/gpu/drm/i915/i915_drv.h | 1 - > drivers/gpu/drm/i915/intel_display.c | 54 > ------------------------------------ > drivers/gpu/drm/i915/intel_pm.c | 5 ++-- > 4 files changed, 3 insertions(+), 59 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c > b/drivers/gpu/drm/i915/i915_debugfs.c > index 6ee529e..6f96b8f 100644 > --- a/drivers/gpu/drm/i915/i915_debugfs.c > +++ b/drivers/gpu/drm/i915/i915_debugfs.c > @@ -2013,8 +2013,6 @@ static int i915_pc8_status(struct seq_file *m, void > *unused) > } > > mutex_lock(&dev_priv->pc8.lock); > - seq_printf(m, "Requirements met: %s\n", > - yesno(dev_priv->pc8.requirements_met)); > seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->mm.busy)); > seq_printf(m, "Disable count: %d\n", dev_priv->pc8.disable_count); > seq_printf(m, "IRQs disabled: %s\n", > diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h > index a5f1780..75faa51 100644 > --- a/drivers/gpu/drm/i915/i915_drv.h > +++ b/drivers/gpu/drm/i915/i915_drv.h > @@ -1386,7 +1386,6 @@ struct ilk_wm_values { > * For more, read "Display Sequences for Package C8" on our documentation. > */ > struct i915_package_c8 { > - bool requirements_met; > bool irqs_disabled; > /* Only true after the delayed work task actually enables it. */ > bool enabled; > diff --git a/drivers/gpu/drm/i915/intel_display.c > b/drivers/gpu/drm/i915/intel_display.c > index ab02848..ea9165b 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -6885,63 +6885,9 @@ void hsw_disable_package_c8(struct drm_i915_private > *dev_priv) > mutex_unlock(&dev_priv->pc8.lock); > } > > -static bool hsw_can_enable_package_c8(struct drm_i915_private *dev_priv) > -{ > - struct drm_device *dev = dev_priv->dev; > - struct intel_crtc *crtc; > - uint32_t val; > - > - list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) > - if (crtc->base.enabled) > - return false; > - > - /* This case is still possible since we have the i915.disable_power_well > - * parameter and also the KVMr or something else might be requesting the > - * power well. */ > - val = I915_READ(HSW_PWR_WELL_DRIVER); > - if (val != 0) { > - DRM_DEBUG_KMS("Not enabling PC8: power well on\n"); > - return false; > - } > - > - return true; > -} > - > -/* Since we're called from modeset_global_resources there's no way to > - * symmetrically increase and decrease the refcount, so we use > - * dev_priv->pc8.requirements_met to track whether we already have the > refcount > - * or not. > - */ > -static void hsw_update_package_c8(struct drm_device *dev) > -{ > - struct drm_i915_private *dev_priv = dev->dev_private; > - bool allow; > - > - if (!HAS_PC8(dev_priv->dev)) > - return; > - > - mutex_lock(&dev_priv->pc8.lock); > - > - allow = hsw_can_enable_package_c8(dev_priv); > - > - if (allow == dev_priv->pc8.requirements_met) > - goto done; > - > - dev_priv->pc8.requirements_met = allow; > - > - if (allow) > - __hsw_enable_package_c8(dev_priv); > - else > - __hsw_disable_package_c8(dev_priv); > - > -done: > - mutex_unlock(&dev_priv->pc8.lock); > -} > - > static void haswell_modeset_global_resources(struct drm_device *dev) > { > modeset_update_crtc_power_domains(dev); > - hsw_update_package_c8(dev); > } > > static int haswell_crtc_mode_set(struct drm_crtc *crtc, > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index 53ac8d0..0c69ee2 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -5938,6 +5938,8 @@ void intel_init_runtime_pm(struct drm_i915_private > *dev_priv) > pm_runtime_set_autosuspend_delay(device, 10000); /* 10s */ > pm_runtime_mark_last_busy(device); > pm_runtime_use_autosuspend(device); > + > + pm_runtime_put_autosuspend(device); > } > > void intel_fini_runtime_pm(struct drm_i915_private *dev_priv) > @@ -6161,10 +6163,9 @@ void intel_pm_setup(struct drm_device *dev) > mutex_init(&dev_priv->rps.hw_lock); > > mutex_init(&dev_priv->pc8.lock); > - dev_priv->pc8.requirements_met = false; > dev_priv->pc8.irqs_disabled = false; > dev_priv->pc8.enabled = false; > - dev_priv->pc8.disable_count = 1; /* requirements_met */ > + dev_priv->pc8.disable_count = 0; > INIT_DELAYED_WORK(&dev_priv->rps.delayed_resume_work, > intel_gen6_powersave_work); > }
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