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3b20eb23 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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2 | /* |
3 | * Copyright (C) 2016, Semihalf | |
4 | * Author: Tomasz Nowicki <tn@semihalf.com> | |
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5 | */ |
6 | ||
7 | #ifndef __ACPI_IORT_H__ | |
8 | #define __ACPI_IORT_H__ | |
9 | ||
10 | #include <linux/acpi.h> | |
4bf2efd2 TN |
11 | #include <linux/fwnode.h> |
12 | #include <linux/irqdomain.h> | |
88ef16d8 | 13 | |
d6fcd3b1 LP |
14 | #define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL) |
15 | #define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL) | |
16 | ||
24e51604 NL |
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 */ | |
24062fe8 | 23 | #define IORT_SMMU_V3_PMCG_HISI_HIP08 0x00000001 /* HiSilicon HIP08 PMCG */ |
24e51604 | 24 | |
8b4282e6 SK |
25 | int iort_register_domain_token(int trans_id, phys_addr_t base, |
26 | struct fwnode_handle *fw_node); | |
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27 | void iort_deregister_domain_token(int trans_id); |
28 | struct fwnode_handle *iort_find_domain_token(int trans_id); | |
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29 | #ifdef CONFIG_ACPI_IORT |
30 | void acpi_iort_init(void); | |
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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); | |
d4f54a18 | 33 | void acpi_configure_pmsi_domain(struct device *dev); |
ae7c1838 | 34 | int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id); |
643b8e4d | 35 | /* IOMMU interface */ |
7ad42639 | 36 | void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size); |
643b8e4d | 37 | const struct iommu_ops *iort_iommu_configure(struct device *dev); |
8b4282e6 | 38 | int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head); |
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39 | #else |
40 | static inline void acpi_iort_init(void) { } | |
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41 | static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id) |
42 | { return req_id; } | |
43 | static inline struct irq_domain *iort_get_device_domain(struct device *dev, | |
44 | u32 req_id) | |
45 | { return NULL; } | |
d4f54a18 | 46 | static inline void acpi_configure_pmsi_domain(struct device *dev) { } |
643b8e4d | 47 | /* IOMMU interface */ |
7ad42639 LP |
48 | static inline void iort_dma_setup(struct device *dev, u64 *dma_addr, |
49 | u64 *size) { } | |
e3d49392 LP |
50 | static inline const struct iommu_ops *iort_iommu_configure( |
51 | struct device *dev) | |
643b8e4d | 52 | { return NULL; } |
8b4282e6 SK |
53 | static inline |
54 | int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) | |
55 | { return 0; } | |
88ef16d8 TN |
56 | #endif |
57 | ||
58 | #endif /* __ACPI_IORT_H__ */ |