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 26 int iort_register_domain_token(int trans_id, phys_addr_t base, 27 struct fwnode_handle *fw_node); 28 void iort_deregister_domain_token(int trans_id); 29 struct fwnode_handle *iort_find_domain_token(int trans_id); 30 struct fwnode_handle *iort_iwb_handle(u32 iwb_id); 31 32 #ifdef CONFIG_ACPI_IORT 33 u32 iort_msi_map_id(struct device *dev, u32 id); 34 u32 iort_msi_xlate(struct device *dev, u32 id, struct fwnode_handle **node); 35 int iort_its_translate_pa(struct fwnode_handle *node, phys_addr_t *base); 36 struct irq_domain *iort_get_device_domain(struct device *dev, u32 id, 37 enum irq_domain_bus_token bus_token); 38 int iort_pmsi_get_msi_info(struct device *dev, u32 *dev_id, phys_addr_t *pa); 39 void acpi_configure_pmsi_domain(struct device *dev); 40 void iort_get_rmr_sids(struct fwnode_handle *iommu_fwnode, 41 struct list_head *head); 42 void iort_put_rmr_sids(struct fwnode_handle *iommu_fwnode, 43 struct list_head *head); 44 /* IOMMU interface */ 45 int iort_dma_get_ranges(struct device *dev, u64 *limit); 46 int iort_iommu_configure_id(struct device *dev, const u32 *id_in); 47 void iort_iommu_get_resv_regions(struct device *dev, struct list_head *head); 48 phys_addr_t acpi_iort_dma_get_max_cpu_address(void); 49 #else 50 static inline u32 iort_msi_map_id(struct device *dev, u32 id) 51 { return id; } 52 static inline u32 iort_msi_xlate(struct device *dev, u32 id, struct fwnode_handle **node) 53 { return id; } 54 static inline int iort_its_translate_pa(struct fwnode_handle *node, phys_addr_t *base) 55 { return -ENODEV; } 56 static inline struct irq_domain *iort_get_device_domain( 57 struct device *dev, u32 id, enum irq_domain_bus_token bus_token) 58 { return NULL; } 59 static inline int iort_pmsi_get_msi_info(struct device *dev, u32 *dev_id, phys_addr_t *pa) 60 { return -ENODEV; } 61 static inline void acpi_configure_pmsi_domain(struct device *dev) { } 62 static inline 63 void iort_get_rmr_sids(struct fwnode_handle *iommu_fwnode, struct list_head *head) { } 64 static inline 65 void iort_put_rmr_sids(struct fwnode_handle *iommu_fwnode, struct list_head *head) { } 66 /* IOMMU interface */ 67 static inline int iort_dma_get_ranges(struct device *dev, u64 *limit) 68 { return -ENODEV; } 69 static inline int iort_iommu_configure_id(struct device *dev, const u32 *id_in) 70 { return -ENODEV; } 71 static inline 72 void iort_iommu_get_resv_regions(struct device *dev, struct list_head *head) 73 { } 74 75 static inline phys_addr_t acpi_iort_dma_get_max_cpu_address(void) 76 { return PHYS_ADDR_MAX; } 77 #endif 78 79 #endif /* __ACPI_IORT_H__ */ 80