Check that closing many contexts does not cause a ban.

Signed-off-by: Chris Wilson <[email protected]>
---
 tests/i915/gem_ctx_persistence.c | 48 ++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/tests/i915/gem_ctx_persistence.c b/tests/i915/gem_ctx_persistence.c
index 1b7d18525..b51a9fcc7 100644
--- a/tests/i915/gem_ctx_persistence.c
+++ b/tests/i915/gem_ctx_persistence.c
@@ -1065,6 +1065,51 @@ static void smoketest(int i915)
        gem_quiescent_gpu(i915);
 }
 
+static void many_contexts(int i915)
+{
+       const struct intel_execution_engine2 *e;
+       igt_spin_t *spin;
+
+       cleanup(i915);
+
+       /*
+        * Perform many peristent kills from the same client. These should not
+        * cause the client to be banned, which in turn prevents us from
+        * creating new contexts, and submitting new execbuf.
+        */
+
+       spin = igt_spin_new(i915, .flags = IGT_SPIN_NO_PREEMPTION);
+       igt_spin_end(spin);
+
+       igt_until_timeout(30) {
+               __for_each_physical_engine(i915, e) {
+                       int64_t timeout = NSEC_PER_SEC;
+                       uint32_t ctx;
+
+                       ctx = gem_context_clone_with_engines(i915, 0);
+                       gem_context_set_persistence(i915, ctx, false);
+
+                       igt_spin_reset(spin);
+                       spin->execbuf.rsvd1 = ctx;
+                       spin->execbuf.flags &= ~63;
+                       spin->execbuf.flags |= e->flags;
+                       gem_execbuf(i915, &spin->execbuf);
+                       gem_context_destroy(i915, ctx);
+
+                       igt_assert_eq(gem_wait(i915, spin->handle, &timeout), 
0);
+               }
+       }
+
+       /* And check we can still submit to the default context -- no bans! */
+       igt_spin_reset(spin);
+       spin->execbuf.rsvd1 = 0;
+       spin->execbuf.flags &= ~63;
+       gem_execbuf(i915, &spin->execbuf);
+
+       igt_spin_free(i915, spin);
+       gem_quiescent_gpu(i915);
+}
+
 static void replace_engines(int i915, const struct intel_execution_engine2 *e)
 {
        I915_DEFINE_CONTEXT_PARAM_ENGINES(engines, 1) = {
@@ -1398,6 +1443,9 @@ igt_main
                        }
                }
 
+               igt_subtest("many-contexts")
+                       many_contexts(i915);
+
                igt_subtest("smoketest")
                        smoketest(i915);
        }
-- 
2.30.0

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