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 <[email protected]> Cc: Joonas Lahtinen <[email protected]> --- drivers/gpu/drm/i915/i915_vma.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index 341c3f82ec1f..0dc994b76924 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); -- 2.11.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
