dc/inc/vm_helper.h

0001 /*
0002  * Copyright 2018 Advanced Micro Devices, Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: AMD
0023  *
0024  */
0025
0026 #ifndef DC_INC_VM_HELPER_H_
0027 #define DC_INC_VM_HELPER_H_
0028
0029 #include "dc_types.h"
0030
0031 #define MAX_HUBP 6
0032
0033 struct vmid_usage {
0034     int vmid_usage[2];
0035 };
0036
0037 struct vm_helper {
0038     unsigned int num_vmid;
0039     struct vmid_usage hubp_vmid_usage[MAX_HUBP];
0040 };
0041
0042 void vm_helper_mark_vmid_used(struct vm_helper *vm_helper, unsigned int pos, uint8_t hubp_idx);
0043
0044 void vm_helper_init(
0045     struct vm_helper *vm_helper,
0046     unsigned int num_vmid);
0047
0048 #endif /* DC_INC_VM_HELPER_H_ */