[Intel-gfx] [PATCH i-g-t v2] tests/gem_reset_stats: Fix retrieval of hangcheck stats expectation

[Antonio Argenziano]

The test expected IOCTL 'I915_GET_RESET_STATS' would return an error
when not root. That is no longer true in the driver since commit
4c9c0d09741d ("drm/i915: Fix retrieval of hangcheck stats") and therefore
the test was incorrectly failing.

v2:
	- Add the commit that changed the behaviour in the Driver to the
	  commit message (Michel)

Cc: Michel Thierry <michel.thierry at intel.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Antonio Argenziano <antonio.argenziano at intel.com>
---
 tests/gem_reset_stats.c | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/tests/gem_reset_stats.c b/tests/gem_reset_stats.c
index edc40767..0c36a7eb 100644
--- a/tests/gem_reset_stats.c
+++ b/tests/gem_reset_stats.c
@@ -605,10 +605,7 @@ static void test_reset_count(const struct intel_execution_engine *e,
 
 		c2 = get_reset_count(fd, ctx);
 
-		if (ctx == 0)
-			igt_assert(c2 == -EPERM);
-		else
-			igt_assert(c2 == 0);
+		igt_assert(c2 == 0);
 	}
 
 	igt_waitchildren();
@@ -619,6 +616,11 @@ static void test_reset_count(const struct intel_execution_engine *e,
 	close(fd);
 }
 
+static int __get_reset_stats(int fd, struct local_drm_i915_reset_stats *rs)
+{
+	return drmIoctl(fd, GET_RESET_STATS_IOCTL, &rs);
+}
+
 static int _test_params(int fd, int ctx, uint32_t flags, uint32_t pad)
 {
 	struct local_drm_i915_reset_stats rs;
@@ -644,10 +646,17 @@ static void _check_param_ctx(const int fd, const int ctx, const cap_t cap)
 	const uint32_t bad = rand() + 1;
 
 	if (ctx == 0) {
-		if (cap == root)
-			igt_assert_eq(_test_params(fd, ctx, 0, 0), 0);
-		else
-			igt_assert_eq(_test_params(fd, ctx, 0, 0), -EPERM);
+		igt_assert_eq(_test_params(fd, ctx, 0, 0), 0);
+
+		if (cap != root) {
+			struct local_drm_i915_reset_stats rs;
+			rs.ctx_id = ctx;
+			rs.reset_count = rand();
+			rs.batch_active = rand();
+			rs.batch_pending = rand();
+			igt_assert(__get_reset_stats(fd, &rs));
+			igt_assert(rs.reset_count != 0);
+		}
 	}
 
 	igt_assert_eq(_test_params(fd, ctx, 0, bad), -EINVAL);
-- 
2.14.2