| /* | |
| * 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 | |
| struct amd_iommu; | |
| /* amd_iommu_init.c external support functions */ | |
| extern int amd_iommu_get_num_iommus(void); | |
| extern bool amd_iommu_pc_supported(void); | |
| extern u8 amd_iommu_pc_get_max_banks(unsigned int idx); | |
| extern u8 amd_iommu_pc_get_max_counters(unsigned int idx); | |
| extern int amd_iommu_pc_set_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, | |
| u8 fxn, u64 *value); | |
| extern int amd_iommu_pc_get_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, | |
| u8 fxn, u64 *value); | |
| extern struct amd_iommu *get_amd_iommu(int idx); | |
| #endif /*_PERF_EVENT_AMD_IOMMU_H_*/ |