Merge tag 'iio-fixes-for-5.5a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23...
[linux-2.6-microblaze.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_nbio.c
1 /*
2  * Copyright (C) 2019  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
12  * in all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15  * OR 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) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20  */
21
22 #include "amdgpu.h"
23 #include "amdgpu_ras.h"
24
25 int amdgpu_nbio_ras_late_init(struct amdgpu_device *adev)
26 {
27         int r;
28         struct ras_ih_if ih_info = {
29                 .cb = NULL,
30         };
31         struct ras_fs_if fs_info = {
32                 .sysfs_name = "pcie_bif_err_count",
33                 .debugfs_name = "pcie_bif_err_inject",
34         };
35
36         if (!adev->nbio.ras_if) {
37                 adev->nbio.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
38                 if (!adev->nbio.ras_if)
39                         return -ENOMEM;
40                 adev->nbio.ras_if->block = AMDGPU_RAS_BLOCK__PCIE_BIF;
41                 adev->nbio.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
42                 adev->nbio.ras_if->sub_block_index = 0;
43                 strcpy(adev->nbio.ras_if->name, "pcie_bif");
44         }
45         ih_info.head = fs_info.head = *adev->nbio.ras_if;
46         r = amdgpu_ras_late_init(adev, adev->nbio.ras_if,
47                                  &fs_info, &ih_info);
48         if (r)
49                 goto free;
50
51         if (amdgpu_ras_is_supported(adev, adev->nbio.ras_if->block)) {
52                 r = amdgpu_irq_get(adev, &adev->nbio.ras_controller_irq, 0);
53                 if (r)
54                         goto late_fini;
55                 r = amdgpu_irq_get(adev, &adev->nbio.ras_err_event_athub_irq, 0);
56                 if (r)
57                         goto late_fini;
58         } else {
59                 r = 0;
60                 goto free;
61         }
62
63         return 0;
64 late_fini:
65         amdgpu_ras_late_fini(adev, adev->nbio.ras_if, &ih_info);
66 free:
67         kfree(adev->nbio.ras_if);
68         adev->nbio.ras_if = NULL;
69         return r;
70 }
71
72 void amdgpu_nbio_ras_fini(struct amdgpu_device *adev)
73 {
74         if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__PCIE_BIF) &&
75                         adev->nbio.ras_if) {
76                 struct ras_common_if *ras_if = adev->nbio.ras_if;
77                 struct ras_ih_if ih_info = {
78                         .cb = NULL,
79                 };
80
81                 amdgpu_ras_late_fini(adev, ras_if, &ih_info);
82                 kfree(ras_if);
83         }
84 }