1 /* 2 * Copyright 2018 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 26 #ifndef DC_INC_VM_HELPER_H_ 27 #define DC_INC_VM_HELPER_H_ 28 29 #include "dc_types.h" 30 31 #define MAX_VMID 16 32 #define MAX_HUBP 6 33 34 struct vmid_usage { 35 uint16_t vmid_usage[2]; 36 }; 37 38 struct vm_helper { 39 unsigned int num_vmid; 40 unsigned int num_hubp; 41 unsigned int num_vmids_available; 42 uint64_t ptb_assigned_to_vmid[MAX_VMID]; 43 struct vmid_usage hubp_vmid_usage[MAX_HUBP]; 44 }; 45 46 uint8_t get_vmid_for_ptb( 47 struct vm_helper *vm_helper, 48 int64_t ptb, 49 uint8_t pipe_idx); 50 51 void init_vm_helper( 52 struct vm_helper *vm_helper, 53 unsigned int num_vmid, 54 unsigned int num_hubp); 55 56 #endif /* DC_INC_VM_HELPER_H_ */ 57