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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2016, Semihalf
4 * Author: Tomasz Nowicki <tn@semihalf.com>
5 */
6
7#ifndef __ACPI_IORT_H__
8#define __ACPI_IORT_H__
9
10#include <linux/acpi.h>
11#include <linux/fwnode.h>
12#include <linux/irqdomain.h>
13
14#define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL)
15#define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL)
16
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 */
23#define IORT_SMMU_V3_PMCG_HISI_HIP08 0x00000001 /* HiSilicon HIP08 PMCG */
24
25int iort_register_domain_token(int trans_id, phys_addr_t base,
26 struct fwnode_handle *fw_node);
27void iort_deregister_domain_token(int trans_id);
28struct fwnode_handle *iort_find_domain_token(int trans_id);
29#ifdef CONFIG_ACPI_IORT
30void acpi_iort_init(void);
31u32 iort_msi_map_rid(struct device *dev, u32 req_id);
32struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id);
33void acpi_configure_pmsi_domain(struct device *dev);
34int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id);
35/* IOMMU interface */
36void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size);
37const struct iommu_ops *iort_iommu_configure(struct device *dev);
38int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head);
39#else
40static inline void acpi_iort_init(void) { }
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; }
46static inline void acpi_configure_pmsi_domain(struct device *dev) { }
47/* IOMMU interface */
48static inline void iort_dma_setup(struct device *dev, u64 *dma_addr,
49 u64 *size) { }
50static inline const struct iommu_ops *iort_iommu_configure(
51 struct device *dev)
52{ return NULL; }
53static inline
54int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
55{ return 0; }
56#endif
57
58#endif /* __ACPI_IORT_H__ */