| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2016, Semihalf |
| 4 | * Author: Tomasz Nowicki <tn@semihalf.com> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 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 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 25 | int iort_register_domain_token(int trans_id, phys_addr_t base, |
| 26 | struct fwnode_handle *fw_node); |
| 27 | void iort_deregister_domain_token(int trans_id); |
| 28 | struct fwnode_handle *iort_find_domain_token(int trans_id); |
| 29 | #ifdef CONFIG_ACPI_IORT |
| 30 | void acpi_iort_init(void); |
| 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); |
| 33 | void acpi_configure_pmsi_domain(struct device *dev); |
| 34 | int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id); |
| 35 | /* IOMMU interface */ |
| 36 | void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size); |
| 37 | const struct iommu_ops *iort_iommu_configure(struct device *dev); |
| 38 | int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head); |
| 39 | #else |
| 40 | static inline void acpi_iort_init(void) { } |
| 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; } |
| 46 | static inline void acpi_configure_pmsi_domain(struct device *dev) { } |
| 47 | /* IOMMU interface */ |
| 48 | static inline void iort_dma_setup(struct device *dev, u64 *dma_addr, |
| 49 | u64 *size) { } |
| 50 | static inline const struct iommu_ops *iort_iommu_configure( |
| 51 | struct device *dev) |
| 52 | { return NULL; } |
| 53 | static inline |
| 54 | int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head) |
| 55 | { return 0; } |
| 56 | #endif |
| 57 | |
| 58 | #endif /* __ACPI_IORT_H__ */ |