projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 7be6296f SS |
1 | /* |
| 2 | * Copyright (C) 2013 Advanced Micro Devices, Inc. | |
| 3 | * | |
| 4 | * Author: Steven Kinney <Steven.Kinney@amd.com> | |
| 5 | * Author: Suravee Suthikulpanit <Suraveee.Suthikulpanit@amd.com> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License version 2 as | |
| 9 | * published by the Free Software Foundation. | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef _PERF_EVENT_AMD_IOMMU_H_ | |
| 13 | #define _PERF_EVENT_AMD_IOMMU_H_ | |
| 14 | ||
| 15 | /* iommu pc mmio region register indexes */ | |
| 16 | #define IOMMU_PC_COUNTER_REG 0x00 | |
| 17 | #define IOMMU_PC_COUNTER_SRC_REG 0x08 | |
| 18 | #define IOMMU_PC_PASID_MATCH_REG 0x10 | |
| 19 | #define IOMMU_PC_DOMID_MATCH_REG 0x18 | |
| 20 | #define IOMMU_PC_DEVID_MATCH_REG 0x20 | |
| 21 | #define IOMMU_PC_COUNTER_REPORT_REG 0x28 | |
| 22 | ||
| 23 | /* maximun specified bank/counters */ | |
| 24 | #define PC_MAX_SPEC_BNKS 64 | |
| 25 | #define PC_MAX_SPEC_CNTRS 16 | |
| 26 | ||
| 27 | /* iommu pc reg masks*/ | |
| 28 | #define IOMMU_BASE_DEVID 0x0000 | |
| 29 | ||
| 30 | /* amd_iommu_init.c external support functions */ | |
| 6b9376e3 SS |
31 | extern int amd_iommu_get_num_iommus(void); |
| 32 | ||
| 7be6296f SS |
33 | extern bool amd_iommu_pc_supported(void); |
| 34 | ||
| 35 | extern u8 amd_iommu_pc_get_max_banks(u16 devid); | |
| 36 | ||
| 37 | extern u8 amd_iommu_pc_get_max_counters(u16 devid); | |
| 38 | ||
| 39 | extern int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, | |
| 40 | u8 fxn, u64 *value, bool is_write); | |
| 41 | ||
| 42 | #endif /*_PERF_EVENT_AMD_IOMMU_H_*/ |