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- /*
- * Copyright (C) 2013 Advanced Micro Devices, Inc.
- *
- * Author: Steven Kinney <Steven.Kinney@amd.com>
- * Author: Suravee Suthikulpanit <Suraveee.Suthikulpanit@amd.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
- #ifndef _PERF_EVENT_AMD_IOMMU_H_
- #define _PERF_EVENT_AMD_IOMMU_H_
- /* iommu pc mmio region register indexes */
- #define IOMMU_PC_COUNTER_REG 0x00
- #define IOMMU_PC_COUNTER_SRC_REG 0x08
- #define IOMMU_PC_PASID_MATCH_REG 0x10
- #define IOMMU_PC_DOMID_MATCH_REG 0x18
- #define IOMMU_PC_DEVID_MATCH_REG 0x20
- #define IOMMU_PC_COUNTER_REPORT_REG 0x28
- /* maximun specified bank/counters */
- #define PC_MAX_SPEC_BNKS 64
- #define PC_MAX_SPEC_CNTRS 16
- /* iommu pc reg masks*/
- #define IOMMU_BASE_DEVID 0x0000
- /* amd_iommu_init.c external support functions */
- extern bool amd_iommu_pc_supported(void);
- extern u8 amd_iommu_pc_get_max_banks(u16 devid);
- extern u8 amd_iommu_pc_get_max_counters(u16 devid);
- extern int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr,
- u8 fxn, u64 *value, bool is_write);
- #endif /*_PERF_EVENT_AMD_IOMMU_H_*/
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