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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 */ | |
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_*/ |