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#define IORT_SMMU_V3_PMCG_HISI_HIP09 0x00000002 /* HiSilicon HIP09 PMCG */ 25 26int iort_register_domain_token(int trans_id, phys_addr_t base, 27 struct fwnode_handle *fw_node); 28void iort_deregister_domain_token(int trans_id); 29struct fwnode_handle *iort_find_domain_token(int trans_id); 30int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id); 31 32#ifdef CONFIG_ACPI_IORT 33u32 iort_msi_map_id(struct device *dev, u32 id); 34struct irq_domain *iort_get_device_domain(struct device *dev, u32 id, 35 enum irq_domain_bus_token bus_token); 36void acpi_configure_pmsi_domain(struct device *dev); 37void iort_get_rmr_sids(struct fwnode_handle *iommu_fwnode, 38 struct list_head *head); 39void iort_put_rmr_sids(struct fwnode_handle *iommu_fwnode, 40 struct list_head *head); 41/* IOMMU interface */ 42int iort_dma_get_ranges(struct device *dev, u64 *size); 43int iort_iommu_configure_id(struct device *dev, const u32 *id_in); 44void iort_iommu_get_resv_regions(struct device *dev, struct list_head *head); 45phys_addr_t acpi_iort_dma_get_max_cpu_address(void); 46#else 47static inline u32 iort_msi_map_id(struct device *dev, u32 id) 48{ return id; } 49static inline struct irq_domain *iort_get_device_domain( 50 struct device *dev, u32 id, enum irq_domain_bus_token bus_token) 51{ return NULL; } 52static inline void acpi_configure_pmsi_domain(struct device *dev) { } 53static inline 54void iort_get_rmr_sids(struct fwnode_handle *iommu_fwnode, struct list_head *head) { } 55static inline 56void iort_put_rmr_sids(struct fwnode_handle *iommu_fwnode, struct list_head *head) { } 57/* IOMMU interface */ 58static inline int iort_dma_get_ranges(struct device *dev, u64 *size) 59{ return -ENODEV; } 60static inline int iort_iommu_configure_id(struct device *dev, const u32 *id_in) 61{ return -ENODEV; } 62static inline 63void iort_iommu_get_resv_regions(struct device *dev, struct list_head *head) 64{ } 65 66static inline phys_addr_t acpi_iort_dma_get_max_cpu_address(void) 67{ return PHYS_ADDR_MAX; } 68#endif 69 70#endif /* __ACPI_IORT_H__ */ 71