[igt-dev] [RFC PATCH v6 4/4] tests: gem_exec_basic: add "exec-ctx" buffer execution demo test

[Andi Shyti <andi.shyti@intel.com>]

The "exec-ctx" is a demo subtest inserted in the gem_exec_basic
test. The main goal of the test is to get to the engines by using
the new API as implemented in in commit 87079e04 ("lib: implement
new engine discovery interface").

The "exec-ctx" subtest simply gets the list of engines, binds
them to a context and executes a buffer. This is done through a
new "for_each_engine_ctx" loop which iterates through the
engines.

Signed-off-by: Andi Shyti <andi.shyti@intel.com>
---
 tests/i915/gem_exec_basic.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tests/i915/gem_exec_basic.c b/tests/i915/gem_exec_basic.c
index dcb83864b1c1..b68829f664db 100644
--- a/tests/i915/gem_exec_basic.c
+++ b/tests/i915/gem_exec_basic.c
@@ -135,6 +135,20 @@ igt_main
 			gtt(fd, e->exec_id | e->flags);
 	}
 
+	igt_subtest("exec-ctx") {
+		uint32_t ctx_id;
+		struct intel_execution_engine2 *e2;
+		int index_map = 0;
+
+		ctx_id = gem_context_create(fd);
+
+		for_each_engine_ctx(fd, ctx_id, e2)
+			igt_assert(gem_has_ring_by_idx(fd, ++index_map,
+						       ctx_id));
+
+		gem_context_destroy(fd, ctx_id);
+	}
+
 	igt_fixture {
 		igt_stop_hang_detector();
 		close(fd);
-- 
2.20.1

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