On 24/04/2019 12:03, Chris Wilson wrote:
Quoting Chris Wilson (2019-04-24 11:00:03)
Quoting Tvrtko Ursulin (2019-04-16 15:50:27)
On 16/04/2019 10:12, Chris Wilson wrote:
+ rq = ERR_PTR(-ENODEV);
+ with_intel_runtime_pm(engine->i915, wakeref)
+ rq = i915_request_alloc(engine, ctx);
+ if (IS_ERR(rq))
+ goto err_unpin;
+
+ if (engine->emit_init_breadcrumb) { /* Be nice if we hang */
+ err = engine->emit_init_breadcrumb(rq);
+ if (err)
+ goto err_request;
+ }
+
+ err = engine->emit_bb_start(rq, batch->node.start, 0, 0);
Why is batch needed here when everything else is happy to run from the ring?
Because we are playing with HW registers, I want reset to work safely.
So long as we have init_breadcrumb, the payload scrubbing should work.
Ok.
No, I am an idiot. The batch is so that we emulate userspace with
unprivileged execution
Okay, keep the r-b. :)
Regards,
Tvrtko
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
