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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-09 11:19:33 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-09 12:22:15 +0000 |
| commit | e1cc3db020c7ef864b7aa02d5e193a110f8f3450 (patch) | |
| tree | f7d73a21ccf83d20202b6f0eda813565d29a394b /drivers/gpu/drm/i915/i915_vma.c | |
| parent | 969bb72cbfd906d347cf76dc9b8c8dbaf83ba27a (diff) | |
| download | op-kernel-dev-e1cc3db020c7ef864b7aa02d5e193a110f8f3450.zip op-kernel-dev-e1cc3db020c7ef864b7aa02d5e193a110f8f3450.tar.gz | |
drm/i915: Assert that we never create a vma for the aliasing_ppgtt
The aliasing_ppgtt is just a container for the HW context that mirrors
the global gtt. It should never be used directly, so assert if we make
the mistake of trying to allocate a VMA for it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170209111933.12420-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_vma.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_vma.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index 155906e..e75494c 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -78,6 +78,9 @@ vma_create(struct drm_i915_gem_object *obj, struct rb_node *rb, **p; int i; + /* The aliasing_ppgtt should never be used directly! */ + GEM_BUG_ON(vm == &vm->i915->mm.aliasing_ppgtt->base); + vma = kmem_cache_zalloc(vm->i915->vmas, GFP_KERNEL); if (vma == NULL) return ERR_PTR(-ENOMEM); |
