On Mon, May 23, 2016 at 01:09:02PM +0100, Tvrtko Ursulin wrote:
> >@@ -426,6 +401,26 @@ int i915_gem_context_init(struct drm_device *dev)
> > return PTR_ERR(ctx);
> > }
> >
> >+ if (ctx->legacy_hw_ctx.rcs_state) {
> >+ int ret;
> >+
> >+ /* We may need to do things with the shrinker which
> >+ * require us to immediately switch back to the default
> >+ * context. This can cause a problem as pinning the
> >+ * default context also requires GTT space which may not
> >+ * be available. To avoid this we always pin the default
> >+ * context.
> >+ */
> >+ ret = i915_gem_obj_ggtt_pin(ctx->legacy_hw_ctx.rcs_state,
> >+ get_context_alignment(dev_priv), 0);
> >+ if (ret) {
> >+ DRM_ERROR("Failed to pinned default global context (error %d)\n",
> >+ ret);
>
> idr_remove here as well? Maybe we should split out the idr context
> API from the GEM context to make it explicit - create context,
> export it to userspace and back?
No, this one is not in an idr as file_priv is NULL for the kernel
context.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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