1 /*
2 * Copyright 2014 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 */
23
24 #include "kfd_mqd_manager.h"
25
mqd_manager_init(enum KFD_MQD_TYPE type,struct kfd_dev * dev)26 struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type,
27 struct kfd_dev *dev)
28 {
29 switch (dev->device_info->asic_family) {
30 case CHIP_KAVERI:
31 return mqd_manager_init_cik(type, dev);
32 case CHIP_HAWAII:
33 return mqd_manager_init_cik_hawaii(type, dev);
34 case CHIP_CARRIZO:
35 return mqd_manager_init_vi(type, dev);
36 case CHIP_TONGA:
37 case CHIP_FIJI:
38 case CHIP_POLARIS10:
39 case CHIP_POLARIS11:
40 return mqd_manager_init_vi_tonga(type, dev);
41 case CHIP_VEGA10:
42 case CHIP_RAVEN:
43 return mqd_manager_init_v9(type, dev);
44 default:
45 WARN(1, "Unexpected ASIC family %u",
46 dev->device_info->asic_family);
47 }
48
49 return NULL;
50 }
51
mqd_symmetrically_map_cu_mask(struct mqd_manager * mm,const uint32_t * cu_mask,uint32_t cu_mask_count,uint32_t * se_mask)52 void mqd_symmetrically_map_cu_mask(struct mqd_manager *mm,
53 const uint32_t *cu_mask, uint32_t cu_mask_count,
54 uint32_t *se_mask)
55 {
56 struct kfd_cu_info cu_info;
57 uint32_t cu_per_sh[4] = {0};
58 int i, se, cu = 0;
59
60 mm->dev->kfd2kgd->get_cu_info(mm->dev->kgd, &cu_info);
61
62 if (cu_mask_count > cu_info.cu_active_number)
63 cu_mask_count = cu_info.cu_active_number;
64
65 for (se = 0; se < cu_info.num_shader_engines; se++)
66 for (i = 0; i < 4; i++)
67 cu_per_sh[se] += hweight32(cu_info.cu_bitmap[se][i]);
68
69 /* Symmetrically map cu_mask to all SEs:
70 * cu_mask[0] bit0 -> se_mask[0] bit0;
71 * cu_mask[0] bit1 -> se_mask[1] bit0;
72 * ... (if # SE is 4)
73 * cu_mask[0] bit4 -> se_mask[0] bit1;
74 * ...
75 */
76 se = 0;
77 for (i = 0; i < cu_mask_count; i++) {
78 if (cu_mask[i / 32] & (1 << (i % 32)))
79 se_mask[se] |= 1 << cu;
80
81 do {
82 se++;
83 if (se == cu_info.num_shader_engines) {
84 se = 0;
85 cu++;
86 }
87 } while (cu >= cu_per_sh[se] && cu < 32);
88 }
89 }
90
