[igt-dev] [PATCH v2 i-g-t 04/15] tests/i915/i915_hangman: Explicitly test per engine reset vs full GPU reset

[John.C.Harrison at Intel.com]

From: John Harrison <John.C.Harrison at Intel.com>

Although the hangman test was ensuring that *some* reset functionality
was enabled, it did not differentiate what kind. The infrastructure
required to choose between per engine reset or full GT reset was
recently added. So update this test to use it as well.

Signed-off-by: John Harrison <John.C.Harrison at Intel.com>
---
 tests/i915/i915_hangman.c | 76 +++++++++++++++++++++++++--------------
 1 file changed, 49 insertions(+), 27 deletions(-)

diff --git a/tests/i915/i915_hangman.c b/tests/i915/i915_hangman.c
index 280eac197..7b8390a6c 100644
--- a/tests/i915/i915_hangman.c
+++ b/tests/i915/i915_hangman.c
@@ -323,40 +323,26 @@ static void hangcheck_unterminated(const intel_ctx_t *ctx)
 	}
 }
 
-igt_main
+static void do_tests(const char *name, const char *prefix,
+		     const intel_ctx_t *ctx)
 {
 	const struct intel_execution_engine2 *e;
-	const intel_ctx_t *ctx;
-	igt_hang_t hang = {};
-
-	igt_fixture {
-		device = drm_open_driver(DRIVER_INTEL);
-		igt_require_gem(device);
-
-		ctx = intel_ctx_create_all_physical(device);
-
-		hang = igt_allow_hang(device, ctx->id, HANG_ALLOW_CAPTURE);
-
-		sysfs = igt_sysfs_open(device);
-		igt_assert(sysfs != -1);
-
-		igt_require(has_error_state(sysfs));
-	}
+	char buff[256];
 
-	igt_describe("Basic error capture");
-	igt_subtest("error-state-basic")
-		test_error_state_basic();
-
-	igt_describe("Per engine error capture");
-	igt_subtest_with_dynamic("error-state-capture") {
+	snprintf(buff, sizeof(buff), "Per engine error capture (%s reset)", name);
+	igt_describe(buff);
+	snprintf(buff, sizeof(buff), "%s-error-state-capture", prefix);
+	igt_subtest_with_dynamic(buff) {
 		for_each_ctx_engine(device, ctx, e) {
 			igt_dynamic_f("%s", e->name)
 				test_error_state_capture(ctx, e);
 		}
 	}
 
-	igt_describe("Per engine hang recovery (spin)");
-	igt_subtest_with_dynamic("engine-hang") {
+	snprintf(buff, sizeof(buff), "Per engine hang recovery (spin, %s reset)", name);
+	igt_describe(buff);
+	snprintf(buff, sizeof(buff), "%s-engine-hang", prefix);
+	igt_subtest_with_dynamic(buff) {
                 int has_gpu_reset = 0;
 		struct drm_i915_getparam gp = {
 			.param = I915_PARAM_HAS_GPU_RESET,
@@ -374,8 +360,10 @@ igt_main
 		}
 	}
 
-	igt_describe("Per engine hang recovery (invalid CS)");
-	igt_subtest_with_dynamic("engine-error") {
+	snprintf(buff, sizeof(buff), "Per engine hang recovery (invalid CS, %s reset)", name);
+	igt_describe(buff);
+	snprintf(buff, sizeof(buff), "%s-engine-error", prefix);
+	igt_subtest_with_dynamic(buff) {
 		int has_gpu_reset = 0;
 		struct drm_i915_getparam gp = {
 			.param = I915_PARAM_HAS_GPU_RESET,
@@ -391,11 +379,45 @@ igt_main
 				test_engine_hang(ctx, e, IGT_SPIN_INVALID_CS);
 		}
 	}
+}
+
+igt_main
+{
+	const intel_ctx_t *ctx;
+	igt_hang_t hang = {};
+
+	igt_fixture {
+		device = drm_open_driver(DRIVER_INTEL);
+		igt_require_gem(device);
+
+		ctx = intel_ctx_create_all_physical(device);
+
+		hang = igt_allow_hang(device, ctx->id, HANG_ALLOW_CAPTURE);
+
+		sysfs = igt_sysfs_open(device);
+		igt_assert(sysfs != -1);
+
+		igt_require(has_error_state(sysfs));
+	}
+
+	igt_describe("Basic error capture");
+	igt_subtest("error-state-basic")
+		test_error_state_basic();
 
 	igt_describe("Check that executing unintialised memory causes a hang");
 	igt_subtest("hangcheck-unterminated")
 		hangcheck_unterminated(ctx);
 
+	do_tests("GT", "gt", ctx);
+
+	igt_fixture {
+		igt_disallow_hang(device, hang);
+
+		hang = igt_allow_hang(device, ctx->id, HANG_ALLOW_CAPTURE | HANG_WANT_ENGINE_RESET);
+	}
+
+	do_tests("engine", "engine", ctx);
+
 	igt_fixture {
 		igt_disallow_hang(device, hang);
 		intel_ctx_destroy(device, ctx);
-- 
2.25.1