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drm/i915: Use 0 for the unordered context

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Since commit 078dec3326 ("dma-buf: add dma_fence_get_stub") the 0
fence context became an impossible match as it is used for an always
signaled fence. We can simplify our timeline tracking by knowing that 0
always means no match.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190819184404.24200-1-chris@chris-wilson.co.uk
Link: https://patchwork.freedesktop.org/patch/msgid/20190819175109.5241-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2019-08-19 19:44:03 +01:00
parent e1d7b66b81
commit cc3375607d
6 changed files with 5 additions and 16 deletions
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2
drivers/gpu/drm/i915/i915_gem.c
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@@ -1411,8 +1411,6 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
mkwrite_device_info(dev_priv)->page_sizes =
I915_GTT_PAGE_SIZE_4K;
dev_priv->mm.unordered_timeline = dma_fence_context_alloc(1);
intel_timelines_init(dev_priv);
ret = i915_gem_init_userptr(dev_priv);