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