mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
5299709d0a
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>
111 lines
3.2 KiB
C
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 */
|