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drm/i915: Assert that we don't submit to execlists whilst a preempt is pending 

To complement the check in execlists_elsp_ready(), also assert that we
don't submit the same context while it has a lite restore still pending.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170124110009.28947-1-chris@chris-wilson.co.uk
hifive-unleashed-5.1
Chris Wilson 2017-01-24 11:00:02 +00:00
parent 5ec63bbdf5
commit c816e605ff
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/i915/intel_lrc.c
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@ -375,6 +375,7 @@ static void execlists_submit_ports(struct intel_engine_cs *engine)
dev_priv->regs + i915_mmio_reg_offset(RING_ELSP(engine));
u64 desc[2];
GEM_BUG_ON(port[0].count > 1);
if (!port[0].count)
execlists_context_status_change(port[0].request,
INTEL_CONTEXT_SCHEDULE_IN);