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 | #include "vm_helper.h" |
27 | #include "dc.h" |
28 | |
29 | void vm_helper_mark_vmid_used(struct vm_helper *vm_helper, unsigned int pos, uint8_t hubp_idx) |
30 | { |
31 | struct vmid_usage vmids = vm_helper->hubp_vmid_usage[hubp_idx]; |
32 | |
33 | vmids.vmid_usage[0] = vmids.vmid_usage[1]; |
34 | vmids.vmid_usage[1] = 1 << pos; |
35 | } |
36 | |
37 | int dc_setup_system_context(struct dc *dc, struct dc_phy_addr_space_config *pa_config) |
38 | { |
39 | int num_vmids = 0; |
40 | |
41 | /* Call HWSS to setup HUBBUB for address config */ |
42 | if (dc->hwss.init_sys_ctx) { |
43 | num_vmids = dc->hwss.init_sys_ctx(dc->hwseq, dc, pa_config); |
44 | |
45 | /* Pre-init system aperture start/end for all HUBP instances (if not gating?) |
46 | * or cache system aperture if using power gating |
47 | */ |
48 | memcpy(&dc->vm_pa_config, pa_config, sizeof(struct dc_phy_addr_space_config)); |
49 | dc->vm_pa_config.valid = true; |
50 | dc_z10_save_init(dc); |
51 | } |
52 | |
53 | return num_vmids; |
54 | } |
55 | |
56 | void dc_setup_vm_context(struct dc *dc, struct dc_virtual_addr_space_config *va_config, int vmid) |
57 | { |
58 | dc->hwss.init_vm_ctx(dc->hwseq, dc, va_config, vmid); |
59 | } |
60 | |
61 | int dc_get_vmid_use_vector(struct dc *dc) |
62 | { |
63 | int i; |
64 | int in_use = 0; |
65 | |
66 | for (i = 0; i < MAX_HUBP; i++) |
67 | in_use |= dc->vm_helper->hubp_vmid_usage[i].vmid_usage[0] |
68 | | dc->vm_helper->hubp_vmid_usage[i].vmid_usage[1]; |
69 | return in_use; |
70 | } |
71 | |
72 | void vm_helper_init(struct vm_helper *vm_helper, unsigned int num_vmid) |
73 | { |
74 | vm_helper->num_vmid = num_vmid; |
75 | |
76 | memset(vm_helper->hubp_vmid_usage, 0, sizeof(vm_helper->hubp_vmid_usage[0]) * MAX_HUBP); |
77 | } |
78 | |