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drm/i915: Skip unused contexts for context_barrier_task()
If the context has not been used yet, it needs no barrier, and in the process fix up the selftest in mock_contexts. Testcase: igt/gem_ctx_clone/vm Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190429090735.326-1-chris@chris-wilson.co.uk
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2 changed files with 4 additions and 4 deletions
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@ -924,15 +924,15 @@ static int context_barrier_task(struct i915_gem_context *ctx,
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for_each_gem_engine(ce, i915_gem_context_lock_engines(ctx), it) {
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struct i915_request *rq;
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if (!(ce->engine->mask & engines))
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continue;
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if (I915_SELFTEST_ONLY(context_barrier_inject_fault &
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ce->engine->mask)) {
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err = -ENXIO;
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break;
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}
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if (!(ce->engine->mask & engines) || !ce->state)
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continue;
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rq = intel_context_create_request(ce);
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if (IS_ERR(rq)) {
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err = PTR_ERR(rq);
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@ -1665,7 +1665,7 @@ static int mock_context_barrier(void *arg)
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goto out;
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}
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if (counter == 0) {
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pr_err("Did not retire immediately for all inactive engines\n");
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pr_err("Did not retire immediately for all unused engines\n");
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err = -EINVAL;
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goto out;
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}
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