linux-stable/include/linux/mic_bus.h
Bart Van Assche 5299709d0a treewide: Constify most dma_map_ops structures
Most dma_map_ops structures are never modified. Constify these
structures such that these can be write-protected. This patch
has been generated as follows:

git grep -l 'struct dma_map_ops' |
  xargs -d\\n sed -i \
    -e 's/struct dma_map_ops/const struct dma_map_ops/g' \
    -e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \
    -e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \
    -e 's/const const struct dma_map_ops /const struct dma_map_ops /g';
sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \
  $(git grep -l 'struct dma_map_ops intel_dma_ops');
sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \
  $(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc);
sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \
       -e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \
       -e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \
    drivers/pci/host/*.c
sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c
sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c
sed -i -e 's/(const struct dma_map_ops \*)//' drivers/misc/mic/bus/vop_bus.c

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24 12:23:35 -05:00

111 lines
3.2 KiB
C

/*
* 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, const 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 */