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4a488a7a OG |
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 | #include <linux/amd-iommu.h> | |
24 | #include <linux/bsearch.h> | |
25 | #include <linux/pci.h> | |
26 | #include <linux/slab.h> | |
27 | #include "kfd_priv.h" | |
28 | ||
29 | static const struct kfd_device_info kaveri_device_info = { | |
30 | .max_pasid_bits = 16, | |
31 | }; | |
32 | ||
33 | struct kfd_deviceid { | |
34 | unsigned short did; | |
35 | const struct kfd_device_info *device_info; | |
36 | }; | |
37 | ||
38 | /* Please keep this sorted by increasing device id. */ | |
39 | static const struct kfd_deviceid supported_devices[] = { | |
40 | { 0x1304, &kaveri_device_info }, /* Kaveri */ | |
41 | { 0x1305, &kaveri_device_info }, /* Kaveri */ | |
42 | { 0x1306, &kaveri_device_info }, /* Kaveri */ | |
43 | { 0x1307, &kaveri_device_info }, /* Kaveri */ | |
44 | { 0x1309, &kaveri_device_info }, /* Kaveri */ | |
45 | { 0x130A, &kaveri_device_info }, /* Kaveri */ | |
46 | { 0x130B, &kaveri_device_info }, /* Kaveri */ | |
47 | { 0x130C, &kaveri_device_info }, /* Kaveri */ | |
48 | { 0x130D, &kaveri_device_info }, /* Kaveri */ | |
49 | { 0x130E, &kaveri_device_info }, /* Kaveri */ | |
50 | { 0x130F, &kaveri_device_info }, /* Kaveri */ | |
51 | { 0x1310, &kaveri_device_info }, /* Kaveri */ | |
52 | { 0x1311, &kaveri_device_info }, /* Kaveri */ | |
53 | { 0x1312, &kaveri_device_info }, /* Kaveri */ | |
54 | { 0x1313, &kaveri_device_info }, /* Kaveri */ | |
55 | { 0x1315, &kaveri_device_info }, /* Kaveri */ | |
56 | { 0x1316, &kaveri_device_info }, /* Kaveri */ | |
57 | { 0x1317, &kaveri_device_info }, /* Kaveri */ | |
58 | { 0x1318, &kaveri_device_info }, /* Kaveri */ | |
59 | { 0x131B, &kaveri_device_info }, /* Kaveri */ | |
60 | { 0x131C, &kaveri_device_info }, /* Kaveri */ | |
61 | { 0x131D, &kaveri_device_info }, /* Kaveri */ | |
62 | }; | |
63 | ||
64 | static const struct kfd_device_info *lookup_device_info(unsigned short did) | |
65 | { | |
66 | size_t i; | |
67 | ||
68 | for (i = 0; i < ARRAY_SIZE(supported_devices); i++) { | |
69 | if (supported_devices[i].did == did) { | |
70 | BUG_ON(supported_devices[i].device_info == NULL); | |
71 | return supported_devices[i].device_info; | |
72 | } | |
73 | } | |
74 | ||
75 | return NULL; | |
76 | } | |
77 | ||
78 | struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev) | |
79 | { | |
80 | struct kfd_dev *kfd; | |
81 | ||
82 | const struct kfd_device_info *device_info = | |
83 | lookup_device_info(pdev->device); | |
84 | ||
85 | if (!device_info) | |
86 | return NULL; | |
87 | ||
88 | kfd = kzalloc(sizeof(*kfd), GFP_KERNEL); | |
89 | if (!kfd) | |
90 | return NULL; | |
91 | ||
92 | kfd->kgd = kgd; | |
93 | kfd->device_info = device_info; | |
94 | kfd->pdev = pdev; | |
95 | ||
96 | return kfd; | |
97 | } | |
98 | ||
99 | bool kgd2kfd_device_init(struct kfd_dev *kfd, | |
100 | const struct kgd2kfd_shared_resources *gpu_resources) | |
101 | { | |
102 | kfd->shared_resources = *gpu_resources; | |
103 | ||
5b5c4e40 EP |
104 | if (kfd_topology_add_device(kfd) != 0) |
105 | return false; | |
106 | ||
4a488a7a OG |
107 | kfd->init_complete = true; |
108 | dev_info(kfd_device, "added device (%x:%x)\n", kfd->pdev->vendor, | |
109 | kfd->pdev->device); | |
110 | ||
111 | return true; | |
112 | } | |
113 | ||
114 | void kgd2kfd_device_exit(struct kfd_dev *kfd) | |
115 | { | |
5b5c4e40 EP |
116 | int err = kfd_topology_remove_device(kfd); |
117 | ||
118 | BUG_ON(err != 0); | |
119 | ||
4a488a7a OG |
120 | kfree(kfd); |
121 | } | |
122 | ||
123 | void kgd2kfd_suspend(struct kfd_dev *kfd) | |
124 | { | |
125 | BUG_ON(kfd == NULL); | |
126 | } | |
127 | ||
128 | int kgd2kfd_resume(struct kfd_dev *kfd) | |
129 | { | |
130 | BUG_ON(kfd == NULL); | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | void kgd2kfd_interrupt(struct kfd_dev *dev, const void *ih_ring_entry) | |
136 | { | |
137 | } |