drm/i915: Remove misleading comment around bind_to_vm

It's true that we might need to context switch, but both the signalling
and implementation of the same are a few source files away. Remove it.

Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 8698cff03fc1df7d7970baa08c37ce2212aea83c..b86da6fceb7680d5dc610ca77d4e0220d8a033dc 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4197,10 +4197,6 @@ i915_gem_object_do_pin(struct drm_i915_gem_object *obj,
 
        bound = vma ? vma->bound : 0;
        if (vma == NULL || !drm_mm_node_allocated(&vma->node)) {
-               /* In true PPGTT, bind has possibly changed PDEs, which
-                * means we must do a context switch before the GPU can
-                * accurately read some of the VMAs.
-                */
                vma = i915_gem_object_bind_to_vm(obj, vm, ggtt_view, alignment,
                                                 flags);
                if (IS_ERR(vma))