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android / kernel / common / 3b20eb23724d493eca79f02b1e062bd5432e29d0 / . / include / linux / acpi_iort.h
blob: 8e7e2ec37f1b295f2615b92ea253f6f9f1f09025 [file] [log] [blame]
Thomas Gleixner3b20eb22019-05-29 16:57:35 -0700[diff] [blame^]1/* SPDX-License-Identifier: GPL-2.0-only */
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]2/*
3 * Copyright (C) 2016, Semihalf
4 * Author: Tomasz Nowicki <[email protected]>
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]5 */
6
7#ifndef __ACPI_IORT_H__
8#define __ACPI_IORT_H__
9
10#include <linux/acpi.h>
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]11#include <linux/fwnode.h>
12#include <linux/irqdomain.h>
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]13
Lorenzo Pieralisid6fcd3b2016-11-21 10:01:45 +0000[diff] [blame]14#define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL)
15#define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL)
16
Neil Leeder24e51602019-03-26 15:17:50 +0000[diff] [blame]17/*
18 * PMCG model identifiers for use in smmu pmu driver. Please note
19 * that this is purely for the use of software and has nothing to
20 * do with hardware or with IORT specification.
21 */
22#define IORT_SMMU_V3_PMCG_GENERIC 0x00000000 /* Generic SMMUv3 PMCG */
Shameer Kolothum24062fe2019-03-26 15:17:53 +0000[diff] [blame]23#define IORT_SMMU_V3_PMCG_HISI_HIP08 0x00000001 /* HiSilicon HIP08 PMCG */
Neil Leeder24e51602019-03-26 15:17:50 +0000[diff] [blame]24
Shameer Kolothum8b4282e2018-02-13 15:20:50 +0000[diff] [blame]25int iort_register_domain_token(int trans_id, phys_addr_t base,
26 struct fwnode_handle *fw_node);
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]27void iort_deregister_domain_token(int trans_id);
28struct fwnode_handle *iort_find_domain_token(int trans_id);
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]29#ifdef CONFIG_ACPI_IORT
30void acpi_iort_init(void);
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]31u32 iort_msi_map_rid(struct device *dev, u32 req_id);
32struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id);
Hanjun Guod4f54a12017-03-07 20:40:06 +0800[diff] [blame]33void acpi_configure_pmsi_domain(struct device *dev);
Hanjun Guoae7c1832017-03-07 20:40:05 +0800[diff] [blame]34int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id);
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]35/* IOMMU interface */
Lorenzo Pieralisi7ad42632017-08-07 11:29:49 +0100[diff] [blame]36void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size);
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]37const struct iommu_ops *iort_iommu_configure(struct device *dev);
Shameer Kolothum8b4282e2018-02-13 15:20:50 +0000[diff] [blame]38int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head);
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]39#else
40static inline void acpi_iort_init(void) { }
Tomasz Nowicki4bf2efd2016-09-12 20:32:21 +0200[diff] [blame]41static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id)
42{ return req_id; }
43static inline struct irq_domain *iort_get_device_domain(struct device *dev,
44 u32 req_id)
45{ return NULL; }
Hanjun Guod4f54a12017-03-07 20:40:06 +0800[diff] [blame]46static inline void acpi_configure_pmsi_domain(struct device *dev) { }
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]47/* IOMMU interface */
Lorenzo Pieralisi7ad42632017-08-07 11:29:49 +0100[diff] [blame]48static inline void iort_dma_setup(struct device *dev, u64 *dma_addr,
49 u64 *size) { }
Lorenzo Pieralisie3d49392017-09-28 14:03:33 +0100[diff] [blame]50static inline const struct iommu_ops *iort_iommu_configure(
51 struct device *dev)
Lorenzo Pieralisi643b8e42016-11-21 10:01:48 +0000[diff] [blame]52{ return NULL; }
Shameer Kolothum8b4282e2018-02-13 15:20:50 +0000[diff] [blame]53static inline
54int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
55{ return 0; }
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]56#endif
57
Tomasz Nowicki88ef16d2016-09-12 20:54:20 +0200[diff] [blame]58#endif /* __ACPI_IORT_H__ */