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android / kernel / common / 24e516049360eda85cf3fe9903221d43886c2689 / . / include / linux / acpi_iort.h
blob: 052ef7b9f985a54eb6293b25f343bc952b564c49 [file] [log] [blame]
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]1/*
2 * Copyright (C) 2016, Semihalf
3 * Author: Tomasz Nowicki <[email protected]>
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
Neil Leeder24e51602019-03-26 15:17:50 +0000[diff] [blame^]29/*
30 * PMCG model identifiers for use in smmu pmu driver. Please note
31 * that this is purely for the use of software and has nothing to
32 * do with hardware or with IORT specification.
33 */
34#define IORT_SMMU_V3_PMCG_GENERIC 0x00000000 /* Generic SMMUv3 PMCG */
35
Shameer Kolothum8b4282e2018-02-13 15:20:50 +0000[diff] [blame]36int iort_register_domain_token(int trans_id, phys_addr_t base,
37 struct fwnode_handle *fw_node);
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]38void iort_deregister_domain_token(int trans_id);
39struct fwnode_handle *iort_find_domain_token(int trans_id);
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]40#ifdef CONFIG_ACPI_IORT
41void acpi_iort_init(void);
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]42u32 iort_msi_map_rid(struct device *dev, u32 req_id);
43struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id);
Hanjun Guod4f54a12017-03-07 20:40:06 +0800[diff] [blame]44void acpi_configure_pmsi_domain(struct device *dev);
Hanjun Guoae7c1832017-03-07 20:40:05 +0800[diff] [blame]45int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id);
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]46/* IOMMU interface */
Lorenzo Pieralisi7ad42632017-08-07 11:29:49 +0100[diff] [blame]47void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size);
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]48const struct iommu_ops *iort_iommu_configure(struct device *dev);
Shameer Kolothum8b4282e2018-02-13 15:20:50 +0000[diff] [blame]49int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head);
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]50#else
51static inline void acpi_iort_init(void) { }
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]52static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id)
53{ return req_id; }
54static inline struct irq_domain *iort_get_device_domain(struct device *dev,
55 u32 req_id)
56{ return NULL; }
Hanjun Guod4f54a12017-03-07 20:40:06 +0800[diff] [blame]57static inline void acpi_configure_pmsi_domain(struct device *dev) { }
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]58/* IOMMU interface */
Lorenzo Pieralisi7ad42632017-08-07 11:29:49 +0100[diff] [blame]59static inline void iort_dma_setup(struct device *dev, u64 *dma_addr,
60 u64 *size) { }
Lorenzo Pieralisie3d49392017-09-28 14:03:33 +0100[diff] [blame]61static inline const struct iommu_ops *iort_iommu_configure(
62 struct device *dev)
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]63{ return NULL; }
Shameer Kolothum8b4282e2018-02-13 15:20:50 +0000[diff] [blame]64static inline
65int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
66{ return 0; }
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]67#endif
68
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]69#endif /* __ACPI_IORT_H__ */