1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/selftests/mock_context.c b/drivers/gpu/drm/i915/gem/selftests/mock_context.c
new file mode 100644
index 000000000000..be8974ccff24
--- /dev/null
+++ b/drivers/gpu/drm/i915/gem/selftests/mock_context.c
@@ -0,0 +1,111 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2016 Intel Corporation
+ */
+
+#include "mock_context.h"
+#include "selftests/mock_gtt.h"
+
+struct i915_gem_context *
+mock_context(struct drm_i915_private *i915,
+	     const char *name)
+{
+	struct i915_gem_context *ctx;
+	struct i915_gem_engines *e;
+	int ret;
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return NULL;
+
+	kref_init(&ctx->ref);
+	INIT_LIST_HEAD(&ctx->link);
+	ctx->i915 = i915;
+
+	mutex_init(&ctx->engines_mutex);
+	e = default_engines(ctx);
+	if (IS_ERR(e))
+		goto err_free;
+	RCU_INIT_POINTER(ctx->engines, e);
+
+	INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL);
+	INIT_LIST_HEAD(&ctx->hw_id_link);
+	mutex_init(&ctx->mutex);
+
+	ret = i915_gem_context_pin_hw_id(ctx);
+	if (ret < 0)
+		goto err_engines;
+
+	if (name) {
+		struct i915_ppgtt *ppgtt;
+
+		ctx->name = kstrdup(name, GFP_KERNEL);
+		if (!ctx->name)
+			goto err_put;
+
+		ppgtt = mock_ppgtt(i915, name);
+		if (!ppgtt)
+			goto err_put;
+
+		__set_ppgtt(ctx, &ppgtt->vm);
+		i915_vm_put(&ppgtt->vm);
+	}
+
+	return ctx;
+
+err_engines:
+	free_engines(rcu_access_pointer(ctx->engines));
+err_free:
+	kfree(ctx);
+	return NULL;
+
+err_put:
+	i915_gem_context_set_closed(ctx);
+	i915_gem_context_put(ctx);
+	return NULL;
+}
+
+void mock_context_close(struct i915_gem_context *ctx)
+{
+	context_close(ctx);
+}
+
+void mock_init_contexts(struct drm_i915_private *i915)
+{
+	init_contexts(i915);
+}
+
+struct i915_gem_context *
+live_context(struct drm_i915_private *i915, struct drm_file *file)
+{
+	struct i915_gem_context *ctx;
+	int err;
+
+	lockdep_assert_held(&i915->drm.struct_mutex);
+
+	ctx = i915_gem_create_context(i915, 0);
+	if (IS_ERR(ctx))
+		return ctx;
+
+	err = gem_context_register(ctx, file->driver_priv);
+	if (err < 0)
+		goto err_ctx;
+
+	return ctx;
+
+err_ctx:
+	context_close(ctx);
+	return ERR_PTR(err);
+}
+
+struct i915_gem_context *
+kernel_context(struct drm_i915_private *i915)
+{
+	return i915_gem_context_create_kernel(i915, I915_PRIORITY_NORMAL);
+}
+
+void kernel_context_close(struct i915_gem_context *ctx)
+{
+	context_close(ctx);
+}