[Intel-gfx] [PATCH 10/11] drm/i915: Call intel_uncore_early_sanitize() during resume

Paulo Zanoni przanoni at gmail.com
Fri Sep 20 00:18:54 CEST 2013


2013/9/16  <ville.syrjala at linux.intel.com>:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> Call intel_uncore_early_sanitize() first thing during resume to prevent
> stale BIOS leftovers from being reported as unclaimed register access.

Just out of curiosity: do you actually need this patch to avoid error
messages? The change makes sense, but since we didn't need it so far,
I wonder if maybe it's something we're doing wrong that's causing the
need to sanitize.


>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index fdf3eef..3d25731 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -670,6 +670,8 @@ int i915_resume(struct drm_device *dev)
>
>         pci_set_master(dev->pdev);
>
> +       intel_uncore_early_sanitize(dev);
> +
>         intel_uncore_sanitize(dev);
>
>         /*
> --
> 1.8.1.5
>
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-- 
Paulo Zanoni



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