1 files changed, 62 insertions, 0 deletions
diff --git a/include/drm/intel/i915_pxp_tee_interface.h b/include/drm/intel/i915_pxp_tee_interface.h
new file mode 100644
index 000000000000..a532d32f58f3
--- /dev/null
+++ b/include/drm/intel/i915_pxp_tee_interface.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef _I915_PXP_TEE_INTERFACE_H_
+#define _I915_PXP_TEE_INTERFACE_H_
+
+#include <linux/mutex.h>
+#include <linux/device.h>
+struct scatterlist;
+
+/**
+ * struct i915_pxp_component_ops - ops for PXP services.
+ */
+struct i915_pxp_component_ops {
+	/**
+	 * @owner: Module providing the ops.
+	 */
+	struct module *owner;
+
+	/**
+	 * @send: Send a PXP message.
+	 */
+	int (*send)(struct device *dev, const void *message, size_t size,
+		    unsigned long timeout_ms);
+	/**
+	 * @recv: Receive a PXP message.
+	 */
+	int (*recv)(struct device *dev, void *buffer, size_t size,
+		    unsigned long timeout_ms);
+	/**
+	 * @gsc_command: Send a GSC command.
+	 */
+	ssize_t (*gsc_command)(struct device *dev, u8 client_id, u32 fence_id,
+			       struct scatterlist *sg_in, size_t total_in_len,
+			       struct scatterlist *sg_out);
+
+};
+
+/**
+ * struct i915_pxp_component - Used for communication between i915 and TEE
+ * drivers for the PXP services
+ */
+struct i915_pxp_component {
+	/**
+	 * @tee_dev: device that provide the PXP service from TEE Bus.
+	 */
+	struct device *tee_dev;
+
+	/**
+	 * @ops: Ops implemented by TEE driver, used by i915 driver.
+	 */
+	const struct i915_pxp_component_ops *ops;
+
+	/**
+	 * @mutex: To protect the above members.
+	 */
+	struct mutex mutex;
+};
+
+#endif /* _I915_TEE_PXP_INTERFACE_H_ */