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drm/i915: Skip unused contexts for context_barrier_task()

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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
This commit is contained in:
Chris Wilson 2019-04-29 10:07:35 +01:00
parent 46472b3efb
commit 62c8e42345
2 changed files with 4 additions and 4 deletions
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6
drivers/gpu/drm/i915/i915_gem_context.c
View file

@ -924,15 +924,15 @@ static int context_barrier_task(struct i915_gem_context *ctx,
for_each_gem_engine(ce, i915_gem_context_lock_engines(ctx), it) {
struct i915_request *rq;
if (!(ce->engine->mask & engines))
continue;
if (I915_SELFTEST_ONLY(context_barrier_inject_fault &
ce->engine->mask)) {
err = -ENXIO;
break;
}
if (!(ce->engine->mask & engines) || !ce->state)
continue;
rq = intel_context_create_request(ce);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);

2
drivers/gpu/drm/i915/selftests/i915_gem_context.c
View file

@ -1665,7 +1665,7 @@ static int mock_context_barrier(void *arg)
goto out;
}
if (counter == 0) {
pr_err("Did not retire immediately for all inactive engines\n");
pr_err("Did not retire immediately for all unused engines\n");
err = -EINVAL;
goto out;
}