/*
* 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.
*
* This file implements early detection/parsing of I/O mapping
* reported to OS through firmware via I/O Remapping Table (IORT)
* IORT document number: ARM DEN 0049A
*/
#define pr_fmt(fmt) "ACPI: IORT: " fmt
#include <linux/acpi_iort.h>
#include <linux/iommu.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#define IORT_TYPE_MASK(type) (1 << (type))
#define IORT_MSI_TYPE (1 << ACPI_IORT_NODE_ITS_GROUP)
#define IORT_IOMMU_TYPE ((1 << ACPI_IORT_NODE_SMMU) | \
(1 << ACPI_IORT_NODE_SMMU_V3))
struct iort_its_msi_chip {
struct list_head list;
struct fwnode_handle *fw_node;
phys_addr_t