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_HUBP 6
32 
33 struct vmid_usage {
34 	int vmid_usage[2];
35 };
36 
37 struct vm_helper {
38 	unsigned int num_vmid;
39 	struct vmid_usage hubp_vmid_usage[MAX_HUBP];
40 };
41 
42 void vm_helper_mark_vmid_used(struct vm_helper *vm_helper, unsigned int pos, uint8_t hubp_idx);
43 
44 void vm_helper_init(
45 	struct vm_helper *vm_helper,
46 	unsigned int num_vmid);
47 
48 #endif /* DC_INC_VM_HELPER_H_ */
49