1 /*
2  * Copyright 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 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 "amdgpu.h"
25 #include "amdgpu_ras.h"
26 
27 int amdgpu_mmhub_ras_late_init(struct amdgpu_device *adev)
28 {
29 	int r;
30 	struct ras_ih_if ih_info = {
31 		.cb = NULL,
32 	};
33 	struct ras_fs_if fs_info = {
34 		.sysfs_name = "mmhub_err_count",
35 	};
36 
37 	if (!adev->mmhub.ras_if) {
38 		adev->mmhub.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
39 		if (!adev->mmhub.ras_if)
40 			return -ENOMEM;
41 		adev->mmhub.ras_if->block = AMDGPU_RAS_BLOCK__MMHUB;
42 		adev->mmhub.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
43 		adev->mmhub.ras_if->sub_block_index = 0;
44 		strcpy(adev->mmhub.ras_if->name, "mmhub");
45 	}
46 	ih_info.head = fs_info.head = *adev->mmhub.ras_if;
47 	r = amdgpu_ras_late_init(adev, adev->mmhub.ras_if,
48 				 &fs_info, &ih_info);
49 	if (r || !amdgpu_ras_is_supported(adev, adev->mmhub.ras_if->block)) {
50 		kfree(adev->mmhub.ras_if);
51 		adev->mmhub.ras_if = NULL;
52 	}
53 
54 	return r;
55 }
56 
57 void amdgpu_mmhub_ras_fini(struct amdgpu_device *adev)
58 {
59 	if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__MMHUB) &&
60 			adev->mmhub.ras_if) {
61 		struct ras_common_if *ras_if = adev->mmhub.ras_if;
62 		struct ras_ih_if ih_info = {
63 			.cb = NULL,
64 		};
65 
66 		amdgpu_ras_late_fini(adev, ras_if, &ih_info);
67 		kfree(ras_if);
68 	}
69 }
70