From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/include/linux/mic_bus.h | 110 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 kernel/include/linux/mic_bus.h (limited to 'kernel/include/linux/mic_bus.h') diff --git a/kernel/include/linux/mic_bus.h b/kernel/include/linux/mic_bus.h new file mode 100644 index 000000000..d5b5f76d5 --- /dev/null +++ b/kernel/include/linux/mic_bus.h @@ -0,0 +1,110 @@ +/* + * 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 +#include + +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, 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 */ -- cgit 1.2.3-korg