mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
111 lines
3.2 KiB
111 lines
3.2 KiB
/* |
|
* Intel MIC Platform Software Stack (MPSS) |
|
* |
|
* Copyright(c) 2014 Intel Corporation. |
|
* |
|
* This program is free software; you can redistribute it and/or modify |
|
* it under the terms of the GNU General Public License, version 2, as |
|
* published by the Free Software Foundation. |
|
* |
|
* This program is distributed in the hope that it will be useful, but |
|
* WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* General Public License for more details. |
|
* |
|
* The full GNU General Public License is included in this distribution in |
|
* the file called "COPYING". |
|
* |
|
* Intel MIC Bus driver. |
|
* |
|
* This implementation is very similar to the the virtio bus driver |
|
* implementation @ include/linux/virtio.h. |
|
*/ |
|
#ifndef _MIC_BUS_H_ |
|
#define _MIC_BUS_H_ |
|
/* |
|
* Everything a mbus driver needs to work with any particular mbus |
|
* implementation. |
|
*/ |
|
#include <linux/interrupt.h> |
|
#include <linux/dma-mapping.h> |
|
|
|
struct mbus_device_id { |
|
__u32 device; |
|
__u32 vendor; |
|
}; |
|
|
|
#define MBUS_DEV_DMA_HOST 2 |
|
#define MBUS_DEV_DMA_MIC 3 |
|
#define MBUS_DEV_ANY_ID 0xffffffff |
|
|
|
/** |
|
* mbus_device - representation of a device using mbus |
|
* @mmio_va: virtual address of mmio space |
|
* @hw_ops: the hardware ops supported by this device. |
|
* @id: the device type identification (used to match it with a driver). |
|
* @dev: underlying device. |
|
* be used to communicate with. |
|
* @index: unique position on the mbus bus |
|
*/ |
|
struct mbus_device { |
|
void __iomem *mmio_va; |
|
struct mbus_hw_ops *hw_ops; |
|
struct mbus_device_id id; |
|
struct device dev; |
|
int index; |
|
}; |
|
|
|
/** |
|
* mbus_driver - operations for a mbus I/O driver |
|
* @driver: underlying device driver (populate name and owner). |
|
* @id_table: the ids serviced by this driver. |
|
* @probe: the function to call when a device is found. Returns 0 or -errno. |
|
* @remove: the function to call when a device is removed. |
|
*/ |
|
struct mbus_driver { |
|
struct device_driver driver; |
|
const struct mbus_device_id *id_table; |
|
int (*probe)(struct mbus_device *dev); |
|
void (*scan)(struct mbus_device *dev); |
|
void (*remove)(struct mbus_device *dev); |
|
}; |
|
|
|
/** |
|
* struct mic_irq - opaque pointer used as cookie |
|
*/ |
|
struct mic_irq; |
|
|
|
/** |
|
* mbus_hw_ops - Hardware operations for accessing a MIC device on the MIC bus. |
|
*/ |
|
struct mbus_hw_ops { |
|
struct mic_irq* (*request_threaded_irq)(struct mbus_device *mbdev, |
|
irq_handler_t handler, |
|
irq_handler_t thread_fn, |
|
const char *name, void *data, |
|
int intr_src); |
|
void (*free_irq)(struct mbus_device *mbdev, |
|
struct mic_irq *cookie, void *data); |
|
void (*ack_interrupt)(struct mbus_device *mbdev, int num); |
|
}; |
|
|
|
struct mbus_device * |
|
mbus_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops, |
|
struct mbus_hw_ops *hw_ops, int index, |
|
void __iomem *mmio_va); |
|
void mbus_unregister_device(struct mbus_device *mbdev); |
|
|
|
int mbus_register_driver(struct mbus_driver *drv); |
|
void mbus_unregister_driver(struct mbus_driver *drv); |
|
|
|
static inline struct mbus_device *dev_to_mbus(struct device *_dev) |
|
{ |
|
return container_of(_dev, struct mbus_device, dev); |
|
} |
|
|
|
static inline struct mbus_driver *drv_to_mbus(struct device_driver *drv) |
|
{ |
|
return container_of(drv, struct mbus_driver, driver); |
|
} |
|
|
|
#endif /* _MIC_BUS_H */
|
|
|