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_umc_ras_late_init(struct amdgpu_device *adev, void *ras_ih_info)
28 {
29 	int r;
30 	struct ras_ih_if *ih_info = (struct ras_ih_if *)ras_ih_info;
31 	struct ras_fs_if fs_info = {
32 		.sysfs_name = "umc_err_count",
33 		.debugfs_name = "umc_err_inject",
34 	};
35 
36 	if (!ih_info)
37 		return -EINVAL;
38 
39 	if (!adev->gmc.umc_ras_if) {
40 		adev->gmc.umc_ras_if =
41 			kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
42 		if (!adev->gmc.umc_ras_if)
43 			return -ENOMEM;
44 		adev->gmc.umc_ras_if->block = AMDGPU_RAS_BLOCK__UMC;
45 		adev->gmc.umc_ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
46 		adev->gmc.umc_ras_if->sub_block_index = 0;
47 		strcpy(adev->gmc.umc_ras_if->name, "umc");
48 	}
49 	ih_info->head = fs_info.head = *adev->gmc.umc_ras_if;
50 
51 	r = amdgpu_ras_late_init(adev, adev->gmc.umc_ras_if,
52 				 &fs_info, ih_info);
53 	if (r)
54 		goto free;
55 
56 	if (amdgpu_ras_is_supported(adev, adev->gmc.umc_ras_if->block)) {
57 		r = amdgpu_irq_get(adev, &adev->gmc.ecc_irq, 0);
58 		if (r)
59 			goto late_fini;
60 	} else {
61 		r = 0;
62 		goto free;
63 	}
64 
65 	/* ras init of specific umc version */
66 	if (adev->umc.funcs && adev->umc.funcs->err_cnt_init)
67 		adev->umc.funcs->err_cnt_init(adev);
68 
69 	return 0;
70 
71 late_fini:
72 	amdgpu_ras_late_fini(adev, adev->gmc.umc_ras_if, ih_info);
73 free:
74 	kfree(adev->gmc.umc_ras_if);
75 	adev->gmc.umc_ras_if = NULL;
76 	return r;
77 }
78