| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2016, Semihalf |
| * Author: Tomasz Nowicki <tn@semihalf.com> |
| */ |
| |
| #ifndef __ACPI_IORT_H__ |
| #define __ACPI_IORT_H__ |
| |
| #include <linux/acpi.h> |
| #include <linux/fwnode.h> |
| #include <linux/irqdomain.h> |
| |
| #define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL) |
| #define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL) |
| |
| /* |
| * PMCG model identifiers for use in smmu pmu driver. Please note |
| * that this is purely for the use of software and has nothing to |
| * do with hardware or with IORT specification. |
| */ |
| #define IORT_SMMU_V3_PMCG_GENERIC 0x00000000 /* Generic SMMUv3 PMCG */ |
| #define IORT_SMMU_V3_PMCG_HISI_HIP08 0x00000001 /* HiSilicon HIP08 PMCG */ |
| |
| int iort_register_domain_token(int trans_id, phys_addr_t base, |
| struct fwnode_handle *fw_node); |
| void iort_deregister_domain_token(int trans_id); |
| struct fwnode_handle *iort_find_domain_token(int trans_id); |
| #ifdef CONFIG_ACPI_IORT |
| void acpi_iort_init(void); |
| u32 iort_msi_map_id(struct device *dev, u32 id); |
| struct irq_domain *iort_get_device_domain(struct device *dev, u32 id, |
| enum irq_domain_bus_token bus_token); |
| void acpi_configure_pmsi_domain(struct device *dev); |
| int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id); |
| /* IOMMU interface */ |
| void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size); |
| const struct iommu_ops *iort_iommu_configure_id(struct device *dev, |
| const u32 *id_in); |
| int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head); |
| phys_addr_t acpi_iort_dma_get_max_cpu_address(void); |
| #else |
| static inline void acpi_iort_init(void) { } |
| static inline u32 iort_msi_map_id(struct device *dev, u32 id) |
| { return id; } |
| static inline struct irq_domain *iort_get_device_domain( |
| struct device *dev, u32 id, enum irq_domain_bus_token bus_token) |
| { return NULL; } |
| static inline void acpi_configure_pmsi_domain(struct device *dev) { } |
| /* IOMMU interface */ |
| static inline void iort_dma_setup(struct device *dev, u64 *dma_addr, |
| u64 *size) { } |
| static inline const struct iommu_ops *iort_iommu_configure_id( |
| struct device *dev, const u32 *id_in) |
| { return NULL; } |
| static inline |
| int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) |
| { return 0; } |
| |
| static inline phys_addr_t acpi_iort_dma_get_max_cpu_address(void) |
| { return PHYS_ADDR_MAX; } |
| #endif |
| |
| #endif /* __ACPI_IORT_H__ */ |