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drm/i915: Remove redundant list_empty(eb->vmas) tests in execbuffer

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Part of the pre-validation for an execbuffer call is that there is at
least one object in the execlist. As we bail if we fail to lookup any
object, we can be sure that after the eb_lookup_vma() there is at least
one object in the vma list and so we do not need to assert.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2014-08-10 06:29:10 +01:00 committed by Daniel Vetter
parent ad19f10bc2
commit 060e82c6f4
1 changed files with 0 additions and 6 deletions
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6
drivers/gpu/drm/i915/i915_gem_execbuffer.c
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@ -622,9 +622,6 @@ i915_gem_execbuffer_reserve(struct intel_engine_cs *ring,
bool has_fenced_gpu_access = INTEL_INFO(ring->dev)->gen < 4; bool has_fenced_gpu_access = INTEL_INFO(ring->dev)->gen < 4;
int retry; int retry;
if (list_empty(vmas))
return 0;
i915_gem_retire_requests_ring(ring); i915_gem_retire_requests_ring(ring);
vm = list_first_entry(vmas, struct i915_vma, exec_list)->vm; vm = list_first_entry(vmas, struct i915_vma, exec_list)->vm;
@ -725,9 +722,6 @@ i915_gem_execbuffer_relocate_slow(struct drm_device *dev,
int i, total, ret; int i, total, ret;
unsigned count = args->buffer_count; unsigned count = args->buffer_count;
if (WARN_ON(list_empty(&eb->vmas)))
return 0;
vm = list_first_entry(&eb->vmas, struct i915_vma, exec_list)->vm; vm = list_first_entry(&eb->vmas, struct i915_vma, exec_list)->vm;
/* We may process another execbuffer during the unlock... */ /* We may process another execbuffer during the unlock... */