From fe9ae7a3bfdb1d5933210f53e9efa7655768d238 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 23 Feb 2017 14:50:31 +0000 Subject: [PATCH] drm/i915/execlists: Detect an out-of-order context switch We require that the request is completed before the context is switched away. Signed-off-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/20170223145031.26210-1-chris@chris-wilson.co.uk Reviewed-by: Mika Kuoppala --- drivers/gpu/drm/i915/intel_lrc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 39329d40da46..1c6c71673bfa 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -591,6 +591,7 @@ static void intel_lrc_irq_handler(unsigned long data) GEM_BUG_ON(port[0].count == 0); if (--port[0].count == 0) { 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, INTEL_CONTEXT_SCHEDULE_OUT); -- 2.20.1