swh:1:snp:c3bf2749e3476071fa748f67b0ffa2fdc5fe49d9
Tip revision: 48778464bb7d346b47157d21ffde2af6b2d39110 authored by Linus Torvalds on 21 June 2020, 22:45:29 UTC
Linux 5.8-rc2
Linux 5.8-rc2
Tip revision: 4877846
acpi_iort.h
/* 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_rid(struct device *dev, u32 req_id);
struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id);
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(struct device *dev);
int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head);
#else
static inline void acpi_iort_init(void) { }
static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id)
{ return req_id; }
static inline struct irq_domain *iort_get_device_domain(struct device *dev,
u32 req_id)
{ 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(
struct device *dev)
{ return NULL; }
static inline
int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
{ return 0; }
#endif
#endif /* __ACPI_IORT_H__ */