projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 7be6296f SS |
2 | /* |
| 3 | * Copyright (C) 2013 Advanced Micro Devices, Inc. | |
| 4 | * | |
| 5 | * Author: Steven Kinney <Steven.Kinney@amd.com> | |
| 6 | * Author: Suravee Suthikulpanit <Suraveee.Suthikulpanit@amd.com> | |
| 7be6296f SS |
7 | */ |
| 8 | ||
| 9 | #ifndef _PERF_EVENT_AMD_IOMMU_H_ | |
| 10 | #define _PERF_EVENT_AMD_IOMMU_H_ | |
| 11 | ||
| 12 | /* iommu pc mmio region register indexes */ | |
| 13 | #define IOMMU_PC_COUNTER_REG 0x00 | |
| 14 | #define IOMMU_PC_COUNTER_SRC_REG 0x08 | |
| 15 | #define IOMMU_PC_PASID_MATCH_REG 0x10 | |
| 16 | #define IOMMU_PC_DOMID_MATCH_REG 0x18 | |
| 17 | #define IOMMU_PC_DEVID_MATCH_REG 0x20 | |
| 18 | #define IOMMU_PC_COUNTER_REPORT_REG 0x28 | |
| 19 | ||
| 20 | /* maximun specified bank/counters */ | |
| 21 | #define PC_MAX_SPEC_BNKS 64 | |
| 22 | #define PC_MAX_SPEC_CNTRS 16 | |
| 23 | ||
| 1650dfd1 SS |
24 | struct amd_iommu; |
| 25 | ||
| 7be6296f | 26 | /* amd_iommu_init.c external support functions */ |
| 6b9376e3 SS |
27 | extern int amd_iommu_get_num_iommus(void); |
| 28 | ||
| 7be6296f SS |
29 | extern bool amd_iommu_pc_supported(void); |
| 30 | ||
| f5863a00 | 31 | extern u8 amd_iommu_pc_get_max_banks(unsigned int idx); |
| 7be6296f | 32 | |
| f5863a00 | 33 | extern u8 amd_iommu_pc_get_max_counters(unsigned int idx); |
| 7be6296f | 34 | |
| 1650dfd1 SS |
35 | extern int amd_iommu_pc_set_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, |
| 36 | u8 fxn, u64 *value); | |
| 37 | ||
| 38 | extern int amd_iommu_pc_get_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, | |
| 39 | u8 fxn, u64 *value); | |
| 7be6296f | 40 | |
| f5863a00 SS |
41 | extern struct amd_iommu *get_amd_iommu(int idx); |
| 42 | ||
| 7be6296f | 43 | #endif /*_PERF_EVENT_AMD_IOMMU_H_*/ |