/* * Copyright (C) 2016, Semihalf * Author: Tomasz Nowicki <tn@semihalf.com> * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., 59 Temple * Place - Suite 330, Boston, MA 02111-1307 USA. */ #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) int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node); void iort_deregister_domain_token(int trans_id); struct fwnode_handle *iort_find_domain_token(int trans_id); #ifdef [31mCONFIG_ACPI_IORT[0m void acpi_iort_init(void); bool iort_node_match(u8 type); u32 iort_msi_map_rid(struct device *dev, u32 req_id); struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id); /* IOMMU interface */ void iort_set_dma_mask(struct device *dev); const struct iommu_ops *iort_iommu_configure(struct device *dev); #else static inline void acpi_iort_init(void) { } static inline bool iort_node_match(u8 type) { return false; } 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; } /* IOMMU interface */ static inline void iort_set_dma_mask(struct device *dev) { } static inline const struct iommu_ops *iort_iommu_configure(struct device *dev) { return NULL; } #endif #define IORT_ACPI_DECLARE(name, table_id, fn) \ ACPI_DECLARE_PROBE_ENTRY(iort, name, table_id, 0, NULL, 0, fn) #endif /* __ACPI_IORT_H__ */ |