drm/i915/userptr: Make gup errors stickier

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Keep any error reported by the gup_worker until we are notified that the
arena has changed (via the mmu-notifier). This has the importance of
making two consecutive calls to i915_gem_object_get_pages() reporting
the same error, and curtailing a loop of detecting a fault and requeueing
a gup_worker.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-19-chris@chris-wilson.co.uk

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Chris Wilson 2016-08-18 17:16:58 +01:00

parent c58b735fc7

commit 364c8172ed

1 changed files with 7 additions and 10 deletions

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drivers/gpu/drm/i915/i915_gem_userptr.c

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