[Intel-gfx] [PATCH v12 01/11] drm/i915: Create GEM runtime resume helper and handle GEM suspend/resume errors

[Joonas Lahtinen]

On Fri, 2017-09-29 at 12:49 +0100, Chris Wilson wrote:
> Quoting Joonas Lahtinen (2017-09-29 12:43:48)
> > On Thu, 2017-09-28 at 12:18 +0530, Sagar Arun Kamble wrote:
> > > These changes are preparation to handle GuC suspend/resume. Prepared
> > > helper i915_gem_runtime_resume to reinitialize suspended gem setup.
> > > Returning status from i915_gem_runtime_suspend and i915_gem_resume.
> > > This will be placeholder for handling any errors from uC suspend/resume
> > > in upcoming patches. Restructured the suspend/resume routines w.r.t setup
> > > creation and rollback order.
> > > This also fixes issue of ordering of i915_gem_runtime_resume with
> > > intel_runtime_pm_enable_interrupts.
> > > 
> > > v2: Fixed return from intel_runtime_resume. (Michał Winiarski)
> > > 
> > > v3: Not returning status from gem_runtime_resume. (Chris)
> > > 
> > > v4: Refined return from i915_gem_runtime_suspend. (Michal Wajdeczko)
> > > 
> > > Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
> > > Cc: Chris Wilson <chris at chris-wilson.co.uk>
> > > Cc: Imre Deak <imre.deak at intel.com>
> > > Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
> > > Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> > > Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
> > > Cc: Michał Winiarski <michal.winiarski at intel.com>
> > 
> > <SNIP>
> > 
> > > @@ -1666,7 +1667,9 @@ static int i915_drm_resume(struct drm_device *dev)
> > >  
> > >       intel_csr_ucode_resume(dev_priv);
> > >  
> > > -     i915_gem_resume(dev_priv);
> > > +     ret = i915_gem_resume(dev_priv);
> > > +     if (ret)
> > > +             dev_err(&pdev->dev, "GEM resume failed\n");
> > 
> > Not DRM_ERROR like other paths?
> 
> Bah, we really need to migrate to dev_err() like all the other cool
> drivers.
> 
> DRM_DEV_ERROR()

+1 on that.

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation