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drm/i915: Consolidate get_fence with pin_fence

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Following the pattern now used for obj->mm.pages, use just pin_fence and
unpin_fence to control access to the fence registers. I.e. instead of
calling get_fence(); pin_fence(), we now just need to call pin_fence().
This will make it easier to reduce the locking requirements around
fence registers.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171009084401.29090-2-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Chris Wilson
2017-10-09 09:43:56 +01:00
parent b4563f595e
commit 3bd4073524
7 changed files with 45 additions and 30 deletions
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4
drivers/gpu/drm/i915/i915_vma.c
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@@ -309,12 +309,10 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma)
__i915_vma_pin(vma);
err = i915_vma_get_fence(vma);
err = i915_vma_pin_fence(vma);
if (err)
goto err_unpin;
i915_vma_pin_fence(vma);
return ptr;
err_unpin: