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Suravee Suthikulpanit7be62962013-06-05 16:11:49 -05001/*
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
Suravee Suthikulpanit1650dfd2017-02-24 02:48:19 -060027struct amd_iommu;
28
Suravee Suthikulpanit7be62962013-06-05 16:11:49 -050029/* amd_iommu_init.c external support functions */
Suravee Suthikulpanit6b9376e2017-02-24 02:48:17 -060030extern int amd_iommu_get_num_iommus(void);
31
Suravee Suthikulpanit7be62962013-06-05 16:11:49 -050032extern bool amd_iommu_pc_supported(void);
33
Suravee Suthikulpanitf5863a02017-02-24 02:48:18 -060034extern u8 amd_iommu_pc_get_max_banks(unsigned int idx);
Suravee Suthikulpanit7be62962013-06-05 16:11:49 -050035
Suravee Suthikulpanitf5863a02017-02-24 02:48:18 -060036extern u8 amd_iommu_pc_get_max_counters(unsigned int idx);
Suravee Suthikulpanit7be62962013-06-05 16:11:49 -050037
Suravee Suthikulpanit1650dfd2017-02-24 02:48:19 -060038extern int amd_iommu_pc_set_reg(struct amd_iommu *iommu, u8 bank, u8 cntr,
39 u8 fxn, u64 *value);
40
41extern int amd_iommu_pc_get_reg(struct amd_iommu *iommu, u8 bank, u8 cntr,
42 u8 fxn, u64 *value);
Suravee Suthikulpanit7be62962013-06-05 16:11:49 -050043
Suravee Suthikulpanitf5863a02017-02-24 02:48:18 -060044extern struct amd_iommu *get_amd_iommu(int idx);
45
Suravee Suthikulpanit7be62962013-06-05 16:11:49 -050046#endif /*_PERF_EVENT_AMD_IOMMU_H_*/