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gerrit-public.fairphone.software / kernel / msm-4.19 / e4880bc5dfb1f02b152e62a894b5c6f3e995b3cf / . / include / linux / acpi_iort.h
blob: 8d3f0bf80379a1ee3fcb84d56c8dffaea62b4811 [file] [log] [blame]
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]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>
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]23#include <linux/fwnode.h>
24#include <linux/irqdomain.h>
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]25
Lorenzo Pieralisid6fcd3b2016-11-21 10:01:45 +0000[diff] [blame]26#define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL)
27#define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL)
28
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]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);
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]32#ifdef CONFIG_ACPI_IORT
33void acpi_iort_init(void);
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]34u32 iort_msi_map_rid(struct device *dev, u32 req_id);
35struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id);
Hanjun Guod4f54a12017-03-07 20:40:06 +0800[diff] [blame]36void acpi_configure_pmsi_domain(struct device *dev);
Hanjun Guoae7c1832017-03-07 20:40:05 +0800[diff] [blame]37int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id);
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]38/* IOMMU interface */
Lorenzo Pieralisi7ad42632017-08-07 11:29:49 +0100[diff] [blame]39void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size);
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]40const struct iommu_ops *iort_iommu_configure(struct device *dev);
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]41#else
42static inline void acpi_iort_init(void) { }
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]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; }
Hanjun Guod4f54a12017-03-07 20:40:06 +0800[diff] [blame]48static inline void acpi_configure_pmsi_domain(struct device *dev) { }
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]49/* IOMMU interface */
Lorenzo Pieralisi7ad42632017-08-07 11:29:49 +0100[diff] [blame]50static inline void iort_dma_setup(struct device *dev, u64 *dma_addr,
51 u64 *size) { }
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]52static inline
53const struct iommu_ops *iort_iommu_configure(struct device *dev)
54{ return NULL; }
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]55#endif
56
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]57#endif /* __ACPI_IORT_H__ */