On Mon, Oct 29, 2018 at 05:29:10PM +, Chris Wilson wrote:
> Quoting Rafael Antognolli (2018-10-29 17:19:53)
> > +void
> > +brw_enable_obj_preemption(struct brw_context *brw, bool enable)
> > +{
> > + const struct gen_device_info *devinfo = >screen->devinfo;
> > + assert(devinfo->gen >= 9);
> > +
> > + if (enable == brw->object_preemption)
> > + return;
> > +
> > + /* A fixed function pipe flush is required before modifying this field
> > */
> > + brw_emit_pipe_control_flush(brw, PIPE_CONTROL_FLUSH_ENABLE);
> > +
> > + bool replay_mode = enable ?
> > + GEN9_REPLAY_MODE_MIDOBJECT : GEN9_REPLAY_MODE_MIDBUFFER;
> > +
> > + /* enable object level preemption */
> > + brw_load_register_imm32(brw, CS_CHICKEN1,
> > + replay_mode | GEN9_REPLAY_MODE_MASK);
> > +
> > + brw->object_preemption = enable;
> > +}
> > +
> > static void
> > brw_upload_initial_gpu_state(struct brw_context *brw)
> > {
> > @@ -153,6 +175,9 @@ brw_upload_initial_gpu_state(struct brw_context *brw)
> > ADVANCE_BATCH();
> >}
> > }
> > +
> > + if (devinfo->gen >= 10)
>
> brw->object_preemption = false;
>
> > + brw_enable_obj_preemption(brw, true);
>
> To force the LRI despite what the context may believe. (To accommodate
> recreating a logical context following a GPU hang.)
> -Chris
Fixing it locally, thanks.
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