[igt-dev] [PATCH i-g-t v3] tests/i915: Add simple test for HuC

[Michal Wajdeczko <michal.wajdeczko@intel.com>]

Add simple test to check that HuC firmware is available.
Use existing I915_GETPARAM and debugfs entry.

v2: make it even simpler
v3: dump with IGT_LOG_INFO, decode status

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Martin Peres <martin.peres@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tony Ye <tony.ye@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> #v2
---
 tests/Makefile.sources |  3 +++
 tests/i915/i915_huc.c  | 53 ++++++++++++++++++++++++++++++++++++++++++
 tests/meson.build      |  1 +
 3 files changed, 57 insertions(+)
 create mode 100644 tests/i915/i915_huc.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 7f921f6c..dfa3fcd3 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -475,6 +475,9 @@ i915_getparams_basic_SOURCES = i915/i915_getparams_basic.c
 TESTS_progs += i915_hangman
 i915_hangman_SOURCES = i915/i915_hangman.c
 
+TESTS_progs += i915_huc
+i915_huc_SOURCES = i915/i915_huc.c
+
 TESTS_progs += i915_module_load
 i915_module_load_SOURCES = i915/i915_module_load.c
 
diff --git a/tests/i915/i915_huc.c b/tests/i915/i915_huc.c
new file mode 100644
index 00000000..2b4bc0d9
--- /dev/null
+++ b/tests/i915/i915_huc.c
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright (c) 2019 Intel Corporation
+ */
+
+#include "igt.h"
+#include <fcntl.h>
+#include <i915_drm.h>
+#include <sys/ioctl.h>
+
+IGT_TEST_DESCRIPTION("Test HuC firmware");
+
+static int get_huc_status(int fd)
+{
+	int status = 0;
+	drm_i915_getparam_t gp = {
+		.param = I915_PARAM_HUC_STATUS,
+		.value = &status,
+	};
+
+	if (igt_ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp))
+		return -errno;
+
+	errno = 0;
+	return status;
+}
+
+igt_main
+{
+	int fd;
+
+	igt_fixture {
+		int status;
+
+		fd = drm_open_driver(DRIVER_INTEL);
+		igt_require_intel(fd);
+		__igt_debugfs_dump(fd, "i915_huc_load_status", IGT_LOG_INFO);
+
+		status = get_huc_status(fd);
+		igt_skip_on_f(status == -ENODEV,
+			      "HuC is not available on this platform!\n");
+		igt_skip_on_f(status < 0, "HuC firmware error: %i, %s\n",
+			      -status, strerror(-status));
+		igt_skip_on_f(status == 0, "HuC firmware is not loaded!\n");
+	}
+
+	igt_subtest("basic")
+		igt_success();
+
+	igt_fixture {
+		close(fd);
+	}
+}
diff --git a/tests/meson.build b/tests/meson.build
index 351594fa..22ed165c 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -220,6 +220,7 @@ i915_progs = [
 	'i915_fb_tiling',
 	'i915_getparams_basic',
 	'i915_hangman',
+	'i915_huc',
 	'i915_module_load',
 	'i915_pm_backlight',
 	'i915_pm_lpsp',
-- 
2.19.2

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