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