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drm/i915: Change i915_vma_unbind() to report -EAGAIN on activity

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If someone else acquires the i915_vma before we complete our wait and
unbind it, we currently error out with -EBUSY. Use -EAGAIN instead so
that if necessary the caller is prepared to try again.

Closes: https://gitlab.freedesktop.org/drm/intel/issues/683
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191208161252.3015727-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-12-08 16:12:52 +00:00
parent 16c46fd505
commit d3e483526c
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_vma.c
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@ -1181,7 +1181,7 @@ int __i915_vma_unbind(struct i915_vma *vma)
GEM_BUG_ON(i915_vma_is_active(vma));
if (i915_vma_is_pinned(vma)) {
vma_print_allocator(vma, "is pinned");
return -EBUSY;
return -EAGAIN;
}
GEM_BUG_ON(i915_vma_is_active(vma));