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| author |   Imre Deak <imre.deak@intel.com> | 2018-08-16 15:37:57 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2018-08-16 17:12:15 +0300 |
| commit | 2cd9a689e97b460489348aee89d72a812c3c1066 (patch) | |
| tree | cba63f64cd80f15de034234f53d4e1a136239432 /drivers/gpu/drm/i915/intel_drv.h | |
| parent | drm/i915: Introduce intel_runtime_pm_disable to pair intel_runtime_pm_enable (diff) | |
| download | linux-dev-2cd9a689e97b460489348aee89d72a812c3c1066.tar.xz linux-dev-2cd9a689e97b460489348aee89d72a812c3c1066.zip | |
drm/i915: Refactor intel_display_set_init_power() logic
The device global init_power_on flag is somewhat arbitrary and makes
debugging power refcounting problems difficult. Instead arrange things
so that all display power domain get has a corresponding put call. After
this change we have the following sequences:
driver loading:
intel_power_domains_init_hw();
<other init steps>
intel_power_domains_enable();
driver unloading:
intel_power_domains_disable();
<other uninit steps>
intel_power_domains_fini_hw();
system suspend:
intel_power_domains_disable();
<other suspend steps>
intel_power_domains_suspend();
system resume:
intel_power_domains_resume();
<other resume steps>
intel_power_domains_enable();
at other times while the driver is loaded:
intel_display_power_get();
...
intel_display_power_put();
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180816123757.3286-2-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 364fc2504fa4..b2ce343b6027 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1954,7 +1954,18 @@ int intel_power_domains_init(struct drm_i915_private *); void intel_power_domains_cleanup(struct drm_i915_private *dev_priv); void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume); void intel_power_domains_fini_hw(struct drm_i915_private *dev_priv); -void intel_power_domains_suspend(struct drm_i915_private *dev_priv); +void intel_power_domains_enable(struct drm_i915_private *dev_priv); +void intel_power_domains_disable(struct drm_i915_private *dev_priv); + +enum i915_drm_suspend_mode { + I915_DRM_SUSPEND_IDLE, + I915_DRM_SUSPEND_MEM, + I915_DRM_SUSPEND_HIBERNATE, +}; + +void intel_power_domains_suspend(struct drm_i915_private *dev_priv, + enum i915_drm_suspend_mode); +void intel_power_domains_resume(struct drm_i915_private *dev_priv); void intel_power_domains_verify_state(struct drm_i915_private *dev_priv); void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume); void bxt_display_core_uninit(struct drm_i915_private *dev_priv); @@ -2037,8 +2048,6 @@ bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv); void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv); void intel_runtime_pm_put(struct drm_i915_private *dev_priv); -void intel_display_set_init_power(struct drm_i915_private *dev, bool enable); - void chv_phy_powergate_lanes(struct intel_encoder *encoder, bool override, unsigned int mask); bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy, |