Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * Copyright (C) 2016, Semihalf
3 * Author: Tomasz Nowicki <tn@semihalf.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16 * Place - Suite 330, Boston, MA 02111-1307 USA.
17 */
18
19#ifndef __ACPI_IORT_H__
20#define __ACPI_IORT_H__
21
22#include <linux/acpi.h>
23#include <linux/fwnode.h>
24#include <linux/irqdomain.h>
25
26#define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL)
27#define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL)
28
29int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node);
30void iort_deregister_domain_token(int trans_id);
31struct fwnode_handle *iort_find_domain_token(int trans_id);
32#ifdef CONFIG_ACPI_IORT
33void acpi_iort_init(void);
34u32 iort_msi_map_rid(struct device *dev, u32 req_id);
35struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id);
36void acpi_configure_pmsi_domain(struct device *dev);
37int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id);
38/* IOMMU interface */
39void iort_set_dma_mask(struct device *dev);
40const struct iommu_ops *iort_iommu_configure(struct device *dev);
41#else
42static inline void acpi_iort_init(void) { }
43static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id)
44{ return req_id; }
45static inline struct irq_domain *iort_get_device_domain(struct device *dev,
46 u32 req_id)
47{ return NULL; }
48static inline void acpi_configure_pmsi_domain(struct device *dev) { }
49/* IOMMU interface */
50static inline void iort_set_dma_mask(struct device *dev) { }
51static inline
52const struct iommu_ops *iort_iommu_configure(struct device *dev)
53{ return NULL; }
54#endif
55
56#endif /* __ACPI_IORT_H__ */