drm/i915/selftests: Make headers self-contained

Include the types used by the headers to they can be compiled
standalone.

Signed-off-by: Chris Wilson <[e-mail]>
Reviewed-by: Matthew Auld <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/i915/Makefile

···
 # exclude some broken headers from the test coverage
 no-header-test := \
 	display/intel_vbt_defs.h \
-	gem/selftests/huge_gem_object.h \
-	gem/selftests/mock_gem_object.h \
 	gvt/execlist.h \
 	gvt/fb_decoder.h \
 	gvt/gtt.h \
···
 	gvt/interrupt.h \
 	gvt/mmio_context.h \
 	gvt/mpt.h \
-	gvt/scheduler.h \
-	selftests/i915_live_selftests.h \
-	selftests/i915_mock_selftests.h \
-	selftests/i915_perf_selftests.h \
-	selftests/igt_live_test.h
+	gvt/scheduler.h
 
 extra-$(CONFIG_DRM_I915_WERROR) += \
 	$(patsubst %.h,%.hdrtest, $(filter-out $(no-header-test), \

drivers/gpu/drm/i915/gem/selftests/huge_gem_object.h

···
 #ifndef __HUGE_GEM_OBJECT_H
 #define __HUGE_GEM_OBJECT_H
 
+#include <linux/types.h>
+
+#include "gem/i915_gem_object_types.h"
+
+struct drm_i915_private;
+
 struct drm_i915_gem_object *
 huge_gem_object(struct drm_i915_private *i915,
 		phys_addr_t phys_size,

drivers/gpu/drm/i915/gem/selftests/mock_gem_object.h

···
 #ifndef __MOCK_GEM_OBJECT_H__
 #define __MOCK_GEM_OBJECT_H__
 
+#include "gem/i915_gem_object_types.h"
+
 struct mock_object {
 	struct drm_i915_gem_object base;
 };

drivers/gpu/drm/i915/selftests/i915_live_selftests.h

···
 /* SPDX-License-Identifier: GPL-2.0 */
-/* List each unit test as selftest(name, function)
+
+#ifndef selftest
+#define selftest(x, y)
+#endif
+
+/*
+ * List each unit test as selftest(name, function)
  *
  * The name is used as both an enum and expanded as subtest__name to create
  * a module parameter. It must be unique and legal for a C identifier.

drivers/gpu/drm/i915/selftests/i915_mock_selftests.h

···
 /* SPDX-License-Identifier: GPL-2.0 */
-/* List each unit test as selftest(name, function)
+
+#ifndef selftest
+#define selftest(x, y)
+#endif
+
+/*
+ * List each unit test as selftest(name, function)
  *
  * The name is used as both an enum and expanded as subtest__name to create
  * a module parameter. It must be unique and legal for a C identifier.

drivers/gpu/drm/i915/selftests/i915_perf_selftests.h

···
 /* SPDX-License-Identifier: GPL-2.0 */
-/* List each unit test as selftest(name, function)
+
+#ifndef selftest
+#define selftest(x, y)
+#endif
+
+/*
+ * List each unit test as selftest(name, function)
  *
  * The name is used as both an enum and expanded as subtest__name to create
  * a module parameter. It must be unique and legal for a C identifier.

drivers/gpu/drm/i915/selftests/igt_live_test.h

···
 #ifndef IGT_LIVE_TEST_H
 #define IGT_LIVE_TEST_H
 
-#include "../i915_gem.h"
+#include "gt/intel_engine.h" /* for I915_NUM_ENGINES */
 
 struct drm_i915_private;