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 int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node);
27 void iort_deregister_domain_token(int trans_id);
28 struct fwnode_handle *iort_find_domain_token(int trans_id);
29 #ifdef CONFIG_ACPI_IORT
30 void acpi_iort_init(void);
31 u32 iort_msi_map_rid(struct device *dev, u32 req_id);
32 struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id);
33 #else
acpi_iort_init(void)34 static inline void acpi_iort_init(void) { }
iort_msi_map_rid(struct device * dev,u32 req_id)35 static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id)
36 { return req_id; }
iort_get_device_domain(struct device * dev,u32 req_id)37 static inline struct irq_domain *iort_get_device_domain(struct device *dev,
38 u32 req_id)
39 { return NULL; }
40 #endif
41
42 #endif /* __ACPI_IORT_H__ */
43