1 /* $NetBSD: amdgpu_mmhub.c,v 1.2 2021/12/18 23:44:58 riastradh Exp $ */
2
3 /*
4 * Copyright 2019 Advanced Micro Devices, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 */
25
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: amdgpu_mmhub.c,v 1.2 2021/12/18 23:44:58 riastradh Exp $");
28
29 #include "amdgpu.h"
30 #include "amdgpu_ras.h"
31
amdgpu_mmhub_ras_late_init(struct amdgpu_device * adev)32 int amdgpu_mmhub_ras_late_init(struct amdgpu_device *adev)
33 {
34 int r;
35 struct ras_ih_if ih_info = {
36 .cb = NULL,
37 };
38 struct ras_fs_if fs_info = {
39 .sysfs_name = "mmhub_err_count",
40 .debugfs_name = "mmhub_err_inject",
41 };
42
43 if (!adev->mmhub.ras_if) {
44 adev->mmhub.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
45 if (!adev->mmhub.ras_if)
46 return -ENOMEM;
47 adev->mmhub.ras_if->block = AMDGPU_RAS_BLOCK__MMHUB;
48 adev->mmhub.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
49 adev->mmhub.ras_if->sub_block_index = 0;
50 strcpy(adev->mmhub.ras_if->name, "mmhub");
51 }
52 ih_info.head = fs_info.head = *adev->mmhub.ras_if;
53 r = amdgpu_ras_late_init(adev, adev->mmhub.ras_if,
54 &fs_info, &ih_info);
55 if (r || !amdgpu_ras_is_supported(adev, adev->mmhub.ras_if->block)) {
56 kfree(adev->mmhub.ras_if);
57 adev->mmhub.ras_if = NULL;
58 }
59
60 return r;
61 }
62
amdgpu_mmhub_ras_fini(struct amdgpu_device * adev)63 void amdgpu_mmhub_ras_fini(struct amdgpu_device *adev)
64 {
65 if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__MMHUB) &&
66 adev->mmhub.ras_if) {
67 struct ras_common_if *ras_if = adev->mmhub.ras_if;
68 struct ras_ih_if ih_info = {
69 .cb = NULL,
70 };
71
72 amdgpu_ras_late_fini(adev, ras_if, &ih_info);
73 kfree(ras_if);
74 }
75 }
76