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43 lines
1.2 KiB
43 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2013 Advanced Micro Devices, Inc. |
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* |
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* Author: Steven Kinney <[email protected]> |
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* Author: Suravee Suthikulpanit <[email protected]> |
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*/ |
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#ifndef _PERF_EVENT_AMD_IOMMU_H_ |
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#define _PERF_EVENT_AMD_IOMMU_H_ |
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/* iommu pc mmio region register indexes */ |
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#define IOMMU_PC_COUNTER_REG 0x00 |
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#define IOMMU_PC_COUNTER_SRC_REG 0x08 |
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#define IOMMU_PC_PASID_MATCH_REG 0x10 |
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#define IOMMU_PC_DOMID_MATCH_REG 0x18 |
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#define IOMMU_PC_DEVID_MATCH_REG 0x20 |
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#define IOMMU_PC_COUNTER_REPORT_REG 0x28 |
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/* maximun specified bank/counters */ |
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#define PC_MAX_SPEC_BNKS 64 |
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#define PC_MAX_SPEC_CNTRS 16 |
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struct amd_iommu; |
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/* amd_iommu_init.c external support functions */ |
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extern int amd_iommu_get_num_iommus(void); |
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extern bool amd_iommu_pc_supported(void); |
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extern u8 amd_iommu_pc_get_max_banks(unsigned int idx); |
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extern u8 amd_iommu_pc_get_max_counters(unsigned int idx); |
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extern int amd_iommu_pc_set_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, |
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u8 fxn, u64 *value); |
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extern int amd_iommu_pc_get_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, |
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u8 fxn, u64 *value); |
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extern struct amd_iommu *get_amd_iommu(int idx); |
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#endif /*_PERF_EVENT_AMD_IOMMU_H_*/
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