On to, 2016-10-06 at 08:41 +0100, Chris Wilson wrote:
> If we run out of enough aperture space to fit the entire object, we
> fallback to trying to insert a single page. However, if that also fails,
> we currently fail to userspace with an unexpected ENOSPC. (ENOSPC means
> to userspace that their batch could not be fitted within the GTT.) Prior
> to commit e8cb909ac3ab ("drm/i915: Fallback to single page GTT
> mmappings for relocations") the approach is to fallback to using the
> slow CPU relocation path in case of iomapping failure, and that is the
> behaviour we need to restore.
>
> Fixes: e8cb909ac3ab ("drm/i915: Fallback to single page GTT mmappings...")
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98101
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Regards, Joonas
--
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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