mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-24 17:44:17 +01:00
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2013 The FreeBSD Foundation
|
|
*
|
|
* This software was developed by Konstantin Belousov <kib@FreeBSD.org>
|
|
* under sponsorship from the FreeBSD Foundation.
|
|
*
|
|
* 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, 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
|
*/
|
|
|
|
#ifndef __X86_IOMMU_BUSDMA_DMAR_H
|
|
#define __X86_IOMMU_BUSDMA_DMAR_H
|
|
|
|
#include <dev/iommu/iommu.h>
|
|
#include <dev/iommu/iommu_gas.h>
|
|
|
|
struct bus_dma_tag_iommu {
|
|
struct bus_dma_tag_common common;
|
|
struct iommu_ctx *ctx;
|
|
device_t owner;
|
|
int map_count;
|
|
bus_dma_segment_t *segments;
|
|
};
|
|
|
|
struct bus_dmamap_iommu {
|
|
struct bus_dma_tag_iommu *tag;
|
|
struct memdesc mem;
|
|
bus_dmamap_callback_t *callback;
|
|
void *callback_arg;
|
|
struct mtx lock;
|
|
struct iommu_map_entries_tailq map_entries;
|
|
TAILQ_ENTRY(bus_dmamap_iommu) delay_link;
|
|
bool locked;
|
|
bool cansleep;
|
|
int flags;
|
|
#ifdef KMSAN
|
|
struct memdesc kmsan_mem;
|
|
#endif
|
|
};
|
|
|
|
#define IOMMU_DMAMAP_INIT(map) mtx_init(&(map)->lock, \
|
|
"iommu dmamap", NULL, MTX_DEF)
|
|
#define IOMMU_DMAMAP_DESTROY(map) mtx_destroy(&(map)->lock)
|
|
#define IOMMU_DMAMAP_LOCK(map) mtx_lock(&(map)->lock)
|
|
#define IOMMU_DMAMAP_UNLOCK(map) mtx_unlock(&(map)->lock)
|
|
|
|
#define BUS_DMAMAP_IOMMU_MALLOC 0x0001
|
|
#define BUS_DMAMAP_IOMMU_KMEM_ALLOC 0x0002
|
|
|
|
extern struct bus_dma_impl bus_dma_iommu_impl;
|
|
|
|
#endif
|