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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/linux/acpi_iort.h
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@@ -1,19 +1,7 @@
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+/* 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 <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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@@ -26,37 +14,51 @@
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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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+
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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_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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+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(struct device *dev);
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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_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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+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(
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-				      struct device *dev)
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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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+
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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__ */