/* * Copyright (C) 2013 Advanced Micro Devices, Inc. * * Author: Steven Kinney <Steven.Kinney@amd.com> * Author: Suravee Suthikulpanit <Suraveee.Suthikulpanit@amd.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef _PERF_EVENT_AMD_IOMMU_H_ #define _PERF_EVENT_AMD_IOMMU_H_ /* iommu pc mmio region register indexes */ #define IOMMU_PC_COUNTER_REG 0x00 #define IOMMU_PC_COUNTER_SRC_REG 0x08 #define IOMMU_PC_PASID_MATCH_REG 0x10 #define IOMMU_PC_DOMID_MATCH_REG 0x18 #define IOMMU_PC_DEVID_MATCH_REG 0x20 #define IOMMU_PC_COUNTER_REPORT_REG 0x28 /* maximun specified bank/counters */ #define PC_MAX_SPEC_BNKS 64 #define PC_MAX_SPEC_CNTRS 16 /* iommu pc reg masks*/ #define IOMMU_BASE_DEVID 0x0000 /* amd_iommu_init.c external support functions */ extern bool amd_iommu_pc_supported(void); extern u8 amd_iommu_pc_get_max_banks(u16 devid); extern u8 amd_iommu_pc_get_max_counters(u16 devid); extern int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn, u64 *value, bool is_write); #endif /*_PERF_EVENT_AMD_IOMMU_H_*/ |