Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/drivers/tee/tee_private.h b/drivers/tee/tee_private.h
new file mode 100644
index 000000000..e55204df3
--- /dev/null
+++ b/drivers/tee/tee_private.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2015-2016, Linaro Limited
+ */
+#ifndef TEE_PRIVATE_H
+#define TEE_PRIVATE_H
+
+#include <linux/cdev.h>
+#include <linux/completion.h>
+#include <linux/device.h>
+#include <linux/kref.h>
+#include <linux/mutex.h>
+#include <linux/types.h>
+
+/**
+ * struct tee_shm_pool - shared memory pool
+ * @private_mgr:	pool manager for shared memory only between kernel
+ *			and secure world
+ * @dma_buf_mgr:	pool manager for shared memory exported to user space
+ */
+struct tee_shm_pool {
+	struct tee_shm_pool_mgr *private_mgr;
+	struct tee_shm_pool_mgr *dma_buf_mgr;
+};
+
+#define TEE_DEVICE_FLAG_REGISTERED	0x1
+#define TEE_MAX_DEV_NAME_LEN		32
+
+/**
+ * struct tee_device - TEE Device representation
+ * @name:	name of device
+ * @desc:	description of device
+ * @id:		unique id of device
+ * @flags:	represented by TEE_DEVICE_FLAG_REGISTERED above
+ * @dev:	embedded basic device structure
+ * @cdev:	embedded cdev
+ * @num_users:	number of active users of this device
+ * @c_no_user:	completion used when unregistering the device
+ * @mutex:	mutex protecting @num_users and @idr
+ * @idr:	register of user space shared memory objects allocated or
+ *		registered on this device
+ * @pool:	shared memory pool
+ */
+struct tee_device {
+	char name[TEE_MAX_DEV_NAME_LEN];
+	const struct tee_desc *desc;
+	int id;
+	unsigned int flags;
+
+	struct device dev;
+	struct cdev cdev;
+
+	size_t num_users;
+	struct completion c_no_users;
+	struct mutex mutex;	/* protects num_users and idr */
+
+	struct idr idr;
+	struct tee_shm_pool *pool;
+};
+
+int tee_shm_init(void);
+
+int tee_shm_get_fd(struct tee_shm *shm);
+
+bool tee_device_get(struct tee_device *teedev);
+void tee_device_put(struct tee_device *teedev);
+
+void teedev_ctx_get(struct tee_context *ctx);
+void teedev_ctx_put(struct tee_context *ctx);
+
+#endif /*TEE_PRIVATE_H*/