On 15/01/16 16:01, Chris Wilson wrote:
On Fri, Jan 15, 2016 at 03:10:29PM +0000, Tvrtko Ursulin wrote:
@@ -1118,15 +1126,22 @@ void intel_lr_context_unpin(struct drm_i915_gem_request 
*rq)
+       if (--rq->ctx->engine[ring->id].pin_count == 0) {
+               lrc_state_page = i915_gem_object_get_dirty_page(ctx_obj,
+                                                               LRC_STATE_PN);

Interesting choice. We called set_page_dirty() when we took the mapping.
Should that page flag be preserved whilst we hold the kmap - I think so,
i.e. the mm cannot flush the page whilst it has an elevated mapcount. So
calling set_page_dirty() again is redundant, right?

If you call mindless copy & paste interesting. :D

Any other concerns or I can respin with that only?

Regards,

Tvrtko
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