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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-23 07:44:17 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-23 14:50:07 +0000 |
| commit | d6a2289d9d6b3ea47514cf29fed56340fb8fec7e (patch) | |
| tree | cfbbc5021a78707e87dcd13add7ddb92b64f3cdb /drivers/gpu/drm/i915/intel_breadcrumbs.c | |
| parent | drm/i915: Allow a request to be cancelled (diff) | |
| download | linux-dev-d6a2289d9d6b3ea47514cf29fed56340fb8fec7e.tar.xz linux-dev-d6a2289d9d6b3ea47514cf29fed56340fb8fec7e.zip | |
drm/i915: Remove the preempted request from the execution queue
After the request is cancelled, we then need to remove it from the
global execution timeline and return it to the context timeline, the
inverse of submit_request().
v2: Move manipulation of struct intel_wait to helpers
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170223074422.4125-12-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_breadcrumbs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_breadcrumbs.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c b/drivers/gpu/drm/i915/intel_breadcrumbs.c index dd39e4f7a560..027c93e34c97 100644 --- a/drivers/gpu/drm/i915/intel_breadcrumbs.c +++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c @@ -453,7 +453,12 @@ void intel_engine_remove_wait(struct intel_engine_cs *engine, spin_unlock_irq(&b->lock); } -static bool signal_complete(struct drm_i915_gem_request *request) +static bool signal_valid(const struct drm_i915_gem_request *request) +{ + return intel_wait_check_request(&request->signaling.wait, request); +} + +static bool signal_complete(const struct drm_i915_gem_request *request) { if (!request) return false; @@ -462,7 +467,7 @@ static bool signal_complete(struct drm_i915_gem_request *request) * signalled that this wait is already completed. */ if (intel_wait_complete(&request->signaling.wait)) - return true; + return signal_valid(request); /* Carefully check if the request is complete, giving time for the * seqno to be visible or if the GPU hung. @@ -542,13 +547,21 @@ static int intel_breadcrumbs_signaler(void *arg) i915_gem_request_put(request); } else { + DEFINE_WAIT(exec); + if (kthread_should_stop()) { GEM_BUG_ON(request); break; } + if (request) + add_wait_queue(&request->execute, &exec); + schedule(); + if (request) + remove_wait_queue(&request->execute, &exec); + if (kthread_should_park()) kthread_parkme(); } |