diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-11 21:09:26 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-13 16:35:27 +0000 |
| commit | 0325701a34f96ecc2502228d07f046d479b8d328 (patch) | |
| tree | b7d21c8699a0c446975e0ed0a9b425913ccf7c05 /drivers | |
| parent | 0c7eeda1af05693fbecd021eeab37477aa49c162 (diff) | |
drm/i915: Assert that we have allocated the drm_mm_node upon pinning
We currently check after the slow path that the vma is bound correctly,
but we don't currently check after the fast path. This is important in
case we accidentally take the fast path and leave the vma misplaced.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170111210937.29252-27-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_vma.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_vma.h | 5 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index b74eeb73ae41..379364b8fef9 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -476,6 +476,7 @@ int __i915_vma_do_pin(struct i915_vma *vma, if ((bound ^ vma->flags) & I915_VMA_GLOBAL_BIND) __i915_vma_set_map_and_fenceable(vma); + GEM_BUG_ON(!drm_mm_node_allocated(&vma->node)); GEM_BUG_ON(i915_vma_misplaced(vma, size, alignment, flags)); return 0; diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h index a969bbb65871..008cf115f38f 100644 --- a/drivers/gpu/drm/i915/i915_vma.h +++ b/drivers/gpu/drm/i915/i915_vma.h @@ -232,8 +232,11 @@ i915_vma_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags) /* Pin early to prevent the shrinker/eviction logic from destroying * our vma as we insert and bind. */ - if (likely(((++vma->flags ^ flags) & I915_VMA_BIND_MASK) == 0)) + if (likely(((++vma->flags ^ flags) & I915_VMA_BIND_MASK) == 0)) { + GEM_BUG_ON(!drm_mm_node_allocated(&vma->node)); + GEM_BUG_ON(i915_vma_misplaced(vma, size, alignment, flags)); return 0; + } return __i915_vma_do_pin(vma, size, alignment, flags); } |