| Suravee Suthikulpanit | 7be6296 | 2013-06-05 16:11:49 -0500 | [diff] [blame] | 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 */ |
| 31 | extern bool amd_iommu_pc_supported(void); |
| 32 | |
| 33 | extern u8 amd_iommu_pc_get_max_banks(u16 devid); |
| 34 | |
| 35 | extern u8 amd_iommu_pc_get_max_counters(u16 devid); |
| 36 | |
| 37 | extern int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, |
| 38 | u8 fxn, u64 *value, bool is_write); |
| 39 | |
| 40 | #endif /*_PERF_EVENT_AMD_IOMMU_H_*/ |