1 files changed, 131 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h
new file mode 100644
index 000000000000..fa628b05db13
--- /dev/null
+++ b/drivers/misc/habanalabs/habanalabs.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright 2016-2019 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ *
+ */
+
+#ifndef HABANALABSP_H_
+#define HABANALABSP_H_
+
+#define pr_fmt(fmt)			"habanalabs: " fmt
+
+#include <linux/cdev.h>
+
+#define HL_NAME				"habanalabs"
+
+struct hl_device;
+
+
+/*
+ * ASICs
+ */
+
+/**
+ * enum hl_asic_type - supported ASIC types.
+ * @ASIC_AUTO_DETECT: ASIC type will be automatically set.
+ * @ASIC_GOYA: Goya device.
+ * @ASIC_INVALID: Invalid ASIC type.
+ */
+enum hl_asic_type {
+	ASIC_AUTO_DETECT,
+	ASIC_GOYA,
+	ASIC_INVALID
+};
+
+
+/*
+ * FILE PRIVATE STRUCTURE
+ */
+
+/**
+ * struct hl_fpriv - process information stored in FD private data.
+ * @hdev: habanalabs device structure.
+ * @filp: pointer to the given file structure.
+ * @taskpid: current process ID.
+ * @refcount: number of related contexts.
+ */
+struct hl_fpriv {
+	struct hl_device	*hdev;
+	struct file		*filp;
+	struct pid		*taskpid;
+	struct kref		refcount;
+};
+
+
+/*
+ * DEVICES
+ */
+
+/* Theoretical limit only. A single host can only contain up to 4 or 8 PCIe
+ * x16 cards. In extereme cases, there are hosts that can accommodate 16 cards
+ */
+#define HL_MAX_MINORS	256
+
+/**
+ * struct hl_device - habanalabs device structure.
+ * @pdev: pointer to PCI device, can be NULL in case of simulator device.
+ * @cdev: related char device.
+ * @dev: realted kernel basic device structure.
+ * @asic_name: ASIC specific nmae.
+ * @asic_type: ASIC specific type.
+ * @major: habanalabs KMD major.
+ * @id: device minor.
+ * @disabled: is device disabled.
+ */
+struct hl_device {
+	struct pci_dev			*pdev;
+	struct cdev			cdev;
+	struct device			*dev;
+	char				asic_name[16];
+	enum hl_asic_type		asic_type;
+	u32				major;
+	u16				id;
+	u8				disabled;
+};
+
+
+/*
+ * IOCTLs
+ */
+
+/**
+ * typedef hl_ioctl_t - typedef for ioctl function in the driver
+ * @hpriv: pointer to the FD's private data, which contains state of
+ *		user process
+ * @data: pointer to the input/output arguments structure of the IOCTL
+ *
+ * Return: 0 for success, negative value for error
+ */
+typedef int hl_ioctl_t(struct hl_fpriv *hpriv, void *data);
+
+/**
+ * struct hl_ioctl_desc - describes an IOCTL entry of the driver.
+ * @cmd: the IOCTL code as created by the kernel macros.
+ * @func: pointer to the driver's function that should be called for this IOCTL.
+ */
+struct hl_ioctl_desc {
+	unsigned int cmd;
+	hl_ioctl_t *func;
+};
+
+
+/*
+ * Kernel module functions that can be accessed by entire module
+ */
+
+int hl_device_open(struct inode *inode, struct file *filp);
+int create_hdev(struct hl_device **dev, struct pci_dev *pdev,
+		enum hl_asic_type asic_type, int minor);
+void destroy_hdev(struct hl_device *hdev);
+int hl_poll_timeout_memory(struct hl_device *hdev, u64 addr, u32 timeout_us,
+				u32 *val);
+int hl_poll_timeout_device_memory(struct hl_device *hdev, void __iomem *addr,
+				u32 timeout_us, u32 *val);
+
+int hl_device_init(struct hl_device *hdev, struct class *hclass);
+void hl_device_fini(struct hl_device *hdev);
+int hl_device_suspend(struct hl_device *hdev);
+int hl_device_resume(struct hl_device *hdev);
+
+#endif /* HABANALABSP_H_ */