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usr / src / sys / compat / linuxkpi / common / include / linux /

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📄 acpi.h(1.72 KB)
📄 atomic.h(1.5 KB)
📄 backlight.h(2.88 KB)
📄 bitfield.h(3.2 KB)
📄 bitmap.h(8.2 KB)
📄 bitops.h(9.41 KB)
📄 bottom_half.h(1.49 KB)
📄 cache.h(1.61 KB)
📄 cdev.h(3.77 KB)
📄 clocksource.h(1.63 KB)
📄 compat.h(2.07 KB)
📄 compiler.h(3.56 KB)
📄 completion.h(2.68 KB)
📄 dcache.h(1.64 KB)
📄 debugfs.h(1.96 KB)
📄 delay.h(2.25 KB)
📄 device.h(15.33 KB)
📄 dma-attrs.h(2.12 KB)
📄 dma-mapping.h(8.88 KB)
📄 dmapool.h(2.77 KB)
📄 dmi.h(2 KB)
📄 err.h(2.23 KB)
📄 errno.h(2.18 KB)
📄 etherdevice.h(2.91 KB)
📄 export.h(1.44 KB)
📄 file.h(4.46 KB)
📄 firmware.h(3.27 KB)
📄 fs.h(8.19 KB)
📄 gcd.h(1.7 KB)
📄 gfp.h(4.7 KB)
📄 hardirq.h(1.7 KB)
📄 hrtimer.h(3.04 KB)
📄 idr.h(4.61 KB)
📄 if_arp.h(1.62 KB)
📄 if_ether.h(2.12 KB)
📄 if_vlan.h(1.96 KB)
📄 in.h(1.87 KB)
📄 in6.h(1.54 KB)
📄 inetdevice.h(2.79 KB)
📄 interrupt.h(5.63 KB)
📄 io-mapping.h(3.05 KB)
📄 io.h(10.36 KB)
📄 ioctl.h(1.59 KB)
📄 irq_work.h(2.21 KB)
📄 irqreturn.h(1.56 KB)
📄 jhash.h(3.2 KB)
📄 jiffies.h(4.36 KB)
📄 kdev_t.h(1.76 KB)
📄 kernel.h(16.91 KB)
📄 kmod.h(1.89 KB)
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📄 kthread.h(2.84 KB)
📄 ktime.h(5.12 KB)
📄 list.h(12.2 KB)
📄 llist.h(2.25 KB)
📄 lockdep.h(2.99 KB)
📄 log2.h(3.96 KB)
📄 math64.h(2.7 KB)
📄 miscdevice.h(2.42 KB)
📄 mm.h(6.73 KB)
📄 mm_types.h(2.33 KB)
📄 mod_devicetable.h(2.25 KB)
📄 module.h(3.22 KB)
📄 moduleparam.h(5.26 KB)
📄 mutex.h(4.6 KB)
📄 net.h(2.42 KB)
📄 net_dim.h(9.87 KB)
📄 netdevice.h(3.85 KB)
📄 notifier.h(1.97 KB)
📄 numa.h(1.52 KB)
📄 overflow.h(2.13 KB)
📄 page.h(3.28 KB)
📄 pagemap.h(1.63 KB)
📄 pci.h(29.63 KB)
📄 pfn.h(1.75 KB)
📄 pfn_t.h(1.9 KB)
📄 pid.h(2.17 KB)
📄 pm.h(2.01 KB)
📄 poll.h(1.86 KB)
📄 power_supply.h(1.66 KB)
📄 preempt.h(1.69 KB)
📄 prefetch.h(1.55 KB)
📄 printk.h(4.08 KB)
📄 radix-tree.h(3.13 KB)
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📄 rculist.h(4.11 KB)
📄 rcupdate.h(3.66 KB)
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📄 rwlock.h(2.55 KB)
📄 rwsem.h(3.06 KB)
📄 scatterlist.h(12.58 KB)
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📄 semaphore.h(2.36 KB)
📄 seq_file.h(3.03 KB)
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📄 shrinker.h(2.04 KB)
📄 sizes.h(1.92 KB)
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📄 srcu.h(2.02 KB)
📄 string.h(3.83 KB)
📄 swap.h(1.68 KB)
📄 sysfs.h(7.54 KB)
📄 time.h(3.17 KB)
📄 timer.h(3.21 KB)
📄 types.h(2.82 KB)
📄 uaccess.h(3.26 KB)
📄 usb.h(11.33 KB)
📄 vmalloc.h(1.72 KB)
📄 wait.h(9.41 KB)
📄 wait_bit.h(2.03 KB)
📄 workqueue.h(7.58 KB)
📄 ww_mutex.h(3.74 KB)
📄 xarray.h(3.33 KB)

Editing: dma-mapping.h

/*-
 * Copyright (c) 2010 Isilon Systems, Inc.
 * Copyright (c) 2010 iX Systems, Inc.
 * Copyright (c) 2010 Panasas, Inc.
 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $FreeBSD$
 */
#ifndef	_LINUX_DMA_MAPPING_H_
#define _LINUX_DMA_MAPPING_H_

#include <linux/types.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/dma-attrs.h>
#include <linux/scatterlist.h>
#include <linux/mm.h>
#include <linux/page.h>
#include <linux/sizes.h>

#include <sys/systm.h>
#include <sys/malloc.h>

#include <vm/vm.h>
#include <vm/vm_page.h>
#include <vm/pmap.h>

#include <machine/bus.h>

enum dma_data_direction {
	DMA_BIDIRECTIONAL = 0,
	DMA_TO_DEVICE = 1,
	DMA_FROM_DEVICE = 2,
	DMA_NONE = 3,
};

struct dma_map_ops {
	void* (*alloc_coherent)(struct device *dev, size_t size,
	    dma_addr_t *dma_handle, gfp_t gfp);
	void (*free_coherent)(struct device *dev, size_t size,
	    void *vaddr, dma_addr_t dma_handle);
	dma_addr_t (*map_page)(struct device *dev, struct page *page,
	    unsigned long offset, size_t size, enum dma_data_direction dir,
	    struct dma_attrs *attrs);
	void (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
	    size_t size, enum dma_data_direction dir, struct dma_attrs *attrs);
	int (*map_sg)(struct device *dev, struct scatterlist *sg,
	    int nents, enum dma_data_direction dir, struct dma_attrs *attrs);
	void (*unmap_sg)(struct device *dev, struct scatterlist *sg, int nents,
	    enum dma_data_direction dir, struct dma_attrs *attrs);
	void (*sync_single_for_cpu)(struct device *dev, dma_addr_t dma_handle,
	    size_t size, enum dma_data_direction dir);
	void (*sync_single_for_device)(struct device *dev,
	    dma_addr_t dma_handle, size_t size, enum dma_data_direction dir);
	void (*sync_single_range_for_cpu)(struct device *dev,
	    dma_addr_t dma_handle, unsigned long offset, size_t size,
	    enum dma_data_direction dir);
	void (*sync_single_range_for_device)(struct device *dev,
	    dma_addr_t dma_handle, unsigned long offset, size_t size,
	    enum dma_data_direction dir);
	void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg,
	    int nents, enum dma_data_direction dir);
	void (*sync_sg_for_device)(struct device *dev, struct scatterlist *sg,
	    int nents, enum dma_data_direction dir);
	int (*mapping_error)(struct device *dev, dma_addr_t dma_addr);
	int (*dma_supported)(struct device *dev, u64 mask);
	int is_phys;
};

#define	DMA_BIT_MASK(n)	((2ULL << ((n) - 1)) - 1ULL)

int linux_dma_tag_init(struct device *dev, u64 mask);
void *linux_dma_alloc_coherent(struct device *dev, size_t size,
    dma_addr_t *dma_handle, gfp_t flag);
dma_addr_t linux_dma_map_phys(struct device *dev, vm_paddr_t phys, size_t len);
void linux_dma_unmap(struct device *dev, dma_addr_t dma_addr, size_t size);
int linux_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
    int nents, enum dma_data_direction dir, struct dma_attrs *attrs);
void linux_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg,
    int nents, enum dma_data_direction dir, struct dma_attrs *attrs);

static inline int
dma_supported(struct device *dev, u64 mask)
{

/* XXX busdma takes care of this elsewhere. */
	return (1);
}

static inline int
dma_set_mask(struct device *dev, u64 dma_mask)
{

if (!dev->dma_priv || !dma_supported(dev, dma_mask))
		return -EIO;

return (linux_dma_tag_init(dev, dma_mask));
}

static inline int
dma_set_coherent_mask(struct device *dev, u64 mask)
{

if (!dma_supported(dev, mask))
		return -EIO;
	/* XXX Currently we don't support a separate coherent mask. */
	return 0;
}

static inline int
dma_set_mask_and_coherent(struct device *dev, u64 mask)
{
	int r;

r = dma_set_mask(dev, mask);
	if (r == 0)
		dma_set_coherent_mask(dev, mask);
	return (r);
}

static inline void *
dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
    gfp_t flag)
{
	return (linux_dma_alloc_coherent(dev, size, dma_handle, flag));
}

static inline void *
dma_zalloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
    gfp_t flag)
{

return (dma_alloc_coherent(dev, size, dma_handle, flag | __GFP_ZERO));
}

static inline void
dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
    dma_addr_t dma_addr)
{

linux_dma_unmap(dev, dma_addr, size);
	kmem_free((vm_offset_t)cpu_addr, size);
}

static inline dma_addr_t
dma_map_single_attrs(struct device *dev, void *ptr, size_t size,
    enum dma_data_direction dir, struct dma_attrs *attrs)
{

return (linux_dma_map_phys(dev, vtophys(ptr), size));
}

static inline void
dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr, size_t size,
    enum dma_data_direction dir, struct dma_attrs *attrs)
{

linux_dma_unmap(dev, dma_addr, size);
}

static inline dma_addr_t
dma_map_page_attrs(struct device *dev, struct page *page, size_t offset,
    size_t size, enum dma_data_direction dir, unsigned long attrs)
{

return (linux_dma_map_phys(dev, VM_PAGE_TO_PHYS(page) + offset, size));
}

static inline int
dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl, int nents,
    enum dma_data_direction dir, struct dma_attrs *attrs)
{

return (linux_dma_map_sg_attrs(dev, sgl, nents, dir, attrs));
}

static inline void
dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg, int nents,
    enum dma_data_direction dir, struct dma_attrs *attrs)
{

linux_dma_unmap_sg_attrs(dev, sg, nents, dir, attrs);
}

static inline dma_addr_t
dma_map_page(struct device *dev, struct page *page,
    unsigned long offset, size_t size, enum dma_data_direction direction)
{

return (linux_dma_map_phys(dev, VM_PAGE_TO_PHYS(page) + offset, size));
}

static inline void
dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
    enum dma_data_direction direction)
{

linux_dma_unmap(dev, dma_address, size);
}

static inline void
dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
    enum dma_data_direction direction)
{
}

static inline void
dma_sync_single(struct device *dev, dma_addr_t addr, size_t size,
    enum dma_data_direction dir)
{
	dma_sync_single_for_cpu(dev, addr, size, dir);
}

static inline void
dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
    size_t size, enum dma_data_direction direction)
{
}

static inline void
dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
    enum dma_data_direction direction)
{
}

static inline void
dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
    enum dma_data_direction direction)
{
}

static inline void
dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
    unsigned long offset, size_t size, int direction)
{
}

static inline void
dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
    unsigned long offset, size_t size, int direction)
{
}

static inline int
dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{

return (dma_addr == 0);
}

static inline unsigned int dma_set_max_seg_size(struct device *dev,
    unsigned int size)
{
	return (0);
}

#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL)
#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL)

#define	DEFINE_DMA_UNMAP_ADDR(name)		dma_addr_t name
#define	DEFINE_DMA_UNMAP_LEN(name)		__u32 name
#define	dma_unmap_addr(p, name)			((p)->name)
#define	dma_unmap_addr_set(p, name, v)		(((p)->name) = (v))
#define	dma_unmap_len(p, name)			((p)->name)
#define	dma_unmap_len_set(p, name, v)		(((p)->name) = (v))

extern int uma_align_cache;
#define	dma_get_cache_alignment()	uma_align_cache

#endif	/* _LINUX_DMA_MAPPING_H_ */

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Editing: dma-mapping.h

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