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drm/i915/execlists: Detect an out-of-order context switch

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We require that the request is completed before the context is switched
away.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170223145031.26210-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
This commit is contained in:
Chris Wilson 2017-02-23 14:50:31 +00:00
parent ffe5111e28
commit fe9ae7a3bf
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/i915/intel_lrc.c
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@ -591,6 +591,7 @@ static void intel_lrc_irq_handler(unsigned long data)
GEM_BUG_ON(port[0].count == 0); GEM_BUG_ON(port[0].count == 0);
if (--port[0].count == 0) { if (--port[0].count == 0) {
GEM_BUG_ON(status & GEN8_CTX_STATUS_PREEMPTED); GEM_BUG_ON(status & GEN8_CTX_STATUS_PREEMPTED);
GEM_BUG_ON(!i915_gem_request_completed(port[0].request));
execlists_context_status_change(port[0].request, execlists_context_status_change(port[0].request,
INTEL_CONTEXT_SCHEDULE_OUT); INTEL_CONTEXT_SCHEDULE_OUT);