On Mon, Nov 09, 2015 at 08:20:08PM +0200, Imre Deak wrote:
> We should use the same assert in more places, so export it. Move it to
> intel_runtime_pm.c at the same time, since that's a more logical place
> for it.
>
> Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_drv.h | 2 ++
> drivers/gpu/drm/i915/intel_runtime_pm.c | 6 ++++++
> drivers/gpu/drm/i915/intel_uncore.c | 7 -------
> 3 files changed, 8 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index f9089df..373cc07 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1415,6 +1415,8 @@ void intel_display_power_get(struct drm_i915_private *dev_priv,
> enum intel_display_power_domain domain);
> void intel_display_power_put(struct drm_i915_private *dev_priv,
> enum intel_display_power_domain domain);
> +
> +void assert_device_not_suspended(struct drm_i915_private *dev_priv);
> void intel_runtime_pm_get(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);
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index b42506b..0d4a03b 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -2120,6 +2120,12 @@ void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume)
> power_domains->initializing = false;
> }
>
> +void assert_device_not_suspended(struct drm_i915_private *dev_priv)
> +{
> + WARN_ONCE(HAS_RUNTIME_PM(dev_priv->dev) && dev_priv->pm.suspended,
Can just be HAS_RUNTIME_PM(dev_priv).
Can we fix HAS_RUNTIME_PM not to be an ever-growing list but a nice
little feature flag?
{
if (!HAS_RUNTIME_PM(dev_priv))
return;
WARN_ONCE(dev_priv->pm.suspended, "Device suspended during HW access");
}
The little extra information would be nice in the error message, but not
convinced the extra whitespace is that helpful.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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