[i-g-t 2/2] tests/gem_reset_stats: Add client ban test

[Antonio Argenziano <antonio.argenziano@xxxxxxxxx>]

When a client gets a fixed amount of its contexts banned, will be
blocked from creating any new contexts itself. This patch adds a test
for this feature.

Signed-off-by: Antonio Argenziano <antonio.argenziano@xxxxxxxxx>
Cc: Michel Thierry <michel.thierry@xxxxxxxxx>
---
 tests/gem_ctx_create.c  | 10 +++++-----
 tests/gem_reset_stats.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 5 deletions(-)

diff --git a/tests/gem_ctx_create.c b/tests/gem_ctx_create.c
index ae0825a1..abe9a32e 100644
--- a/tests/gem_ctx_create.c
+++ b/tests/gem_ctx_create.c
@@ -45,7 +45,7 @@ static unsigned all_nengine;
 static unsigned ppgtt_engines[16];
 static unsigned ppgtt_nengine;
 
-static int __gem_context_create(int fd, struct drm_i915_gem_context_create *arg)
+static int __gem_context_create_local(int fd, struct drm_i915_gem_context_create *arg)
 {
 	int ret = 0;
 	if (drmIoctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, arg))
@@ -255,7 +255,7 @@ static void maximum(int fd, int ncpus, unsigned mode)
 
 		err = -ENOMEM;
 		if (avail_mem > (count + 1) * ctx_size)
-			err = __gem_context_create(fd, &create);
+			err = __gem_context_create_local(fd, &create);
 		if (err) {
 			igt_info("Created %lu contexts, before failing with '%s' [%d]\n",
 				 count, strerror(-err), -err);
@@ -322,7 +322,7 @@ igt_main
 		igt_require_gem(fd);
 
 		memset(&create, 0, sizeof(create));
-		igt_require(__gem_context_create(fd, &create) == 0);
+		igt_require(__gem_context_create_local(fd, &create) == 0);
 		gem_context_destroy(fd, create.ctx_id);
 
 		for_each_engine(fd, engine) {
@@ -347,7 +347,7 @@ igt_main
 		memset(&create, 0, sizeof(create));
 		create.ctx_id = rand();
 		create.pad = 0;
-		igt_assert_eq(__gem_context_create(fd, &create), 0);
+		igt_assert_eq(__gem_context_create_local(fd, &create), 0);
 		igt_assert(create.ctx_id != 0);
 		gem_context_destroy(fd, create.ctx_id);
 	}
@@ -356,7 +356,7 @@ igt_main
 		memset(&create, 0, sizeof(create));
 		create.ctx_id = rand();
 		create.pad = 1;
-		igt_assert_eq(__gem_context_create(fd, &create), -EINVAL);
+		igt_assert_eq(__gem_context_create_local(fd, &create), -EINVAL);
 	}
 
 	igt_subtest("maximum-mem")
diff --git a/tests/gem_reset_stats.c b/tests/gem_reset_stats.c
index edc40767..f51475a9 100644
--- a/tests/gem_reset_stats.c
+++ b/tests/gem_reset_stats.c
@@ -438,6 +438,50 @@ static void test_ban_ctx(const struct intel_execution_engine *e)
 	close(fd);
 }
 
+#define CLIENT_BAN 4
+#define CTX_BAN 5
+static void test_client_ban(const struct intel_execution_engine *e)
+{
+	int fd_bad,fd_good;
+	struct local_drm_i915_reset_stats rs_bad, rs_good;
+	int ctx_bans;
+	uint32_t ctx_bad[CLIENT_BAN];
+	uint32_t test_ctx;
+
+	fd_bad = drm_open_driver(DRIVER_INTEL);
+	fd_good = drm_open_driver(DRIVER_INTEL);
+
+	assert_reset_status(fd_bad, fd_bad, 0, RS_NO_ERROR);
+	assert_reset_status(fd_good, fd_good, 0, RS_NO_ERROR);
+
+	for (int i = 0; i < CLIENT_BAN; i++) {
+		ctx_bad[i] = gem_context_create(fd_bad);
+		noop(fd_bad, ctx_bad[i], e);
+		assert_reset_status(fd_bad, fd_bad, ctx_bad[i], RS_NO_ERROR);
+
+		ctx_bans = CTX_BAN;
+		while (ctx_bans--)
+			inject_hang(fd_bad, ctx_bad[i], e, BAN);
+
+		igt_assert_eq(noop(fd_bad, ctx_bad[i], e), -EIO);
+
+		assert_reset_status(fd_bad, fd_bad, ctx_bad[i], RS_BATCH_ACTIVE);
+		igt_assert_eq(gem_reset_stats(fd_bad, ctx_bad[i], &rs_bad), 0);
+		igt_assert_eq(rs_bad.batch_active, CTX_BAN);
+	}
+
+	igt_assert_eq(__gem_context_create(fd_bad, &test_ctx), -EIO);
+	igt_info("Client banned after %d bad contexts\n", CLIENT_BAN);
+
+	igt_assert_lt(0, noop(fd_good, 0, e));
+	assert_reset_status(fd_good, fd_good, 0, RS_NO_ERROR);
+	igt_assert_eq(gem_reset_stats(fd_good, 0, &rs_good), 0);
+	igt_assert_eq(rs_good.batch_active, 0);
+
+	close(fd_bad);
+	close(fd_good);
+}
+
 static void test_unrelated_ctx(const struct intel_execution_engine *e)
 {
 	int fd1,fd2;
@@ -817,6 +861,9 @@ igt_main
 		igt_subtest_f("ban-ctx-%s", e->name)
 			RUN_CTX_TEST(test_ban_ctx(e));
 
+		igt_subtest_f("ban-client-%s", e->name)
+			RUN_CTX_TEST(test_client_ban(e));
+
 		igt_subtest_f("reset-count-%s", e->name)
 			RUN_TEST(test_reset_count(e, false));
 
-- 
2.14.1

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