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_ras.h"
25
amdgpu_umc_ras_late_init(struct amdgpu_device * adev)26 int amdgpu_umc_ras_late_init(struct amdgpu_device *adev)
27 {
28 int r;
29 struct ras_fs_if fs_info = {
30 .sysfs_name = "umc_err_count",
31 };
32 struct ras_ih_if ih_info = {
33 .cb = amdgpu_umc_process_ras_data_cb,
34 };
35
36 if (!adev->umc.ras_if) {
37 adev->umc.ras_if =
38 kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
39 if (!adev->umc.ras_if)
40 return -ENOMEM;
41 adev->umc.ras_if->block = AMDGPU_RAS_BLOCK__UMC;
42 adev->umc.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
43 adev->umc.ras_if->sub_block_index = 0;
44 strcpy(adev->umc.ras_if->name, "umc");
45 }
46 ih_info.head = fs_info.head = *adev->umc.ras_if;
47
48 r = amdgpu_ras_late_init(adev, adev->umc.ras_if,
49 &fs_info, &ih_info);
50 if (r)
51 goto free;
52
53 if (amdgpu_ras_is_supported(adev, adev->umc.ras_if->block)) {
54 r = amdgpu_irq_get(adev, &adev->gmc.ecc_irq, 0);
55 if (r)
56 goto late_fini;
57 } else {
58 r = 0;
59 goto free;
60 }
61
62 /* ras init of specific umc version */
63 if (adev->umc.funcs && adev->umc.funcs->err_cnt_init)
64 adev->umc.funcs->err_cnt_init(adev);
65
66 return 0;
67
68 late_fini:
69 amdgpu_ras_late_fini(adev, adev->umc.ras_if, &ih_info);
70 free:
71 kfree(adev->umc.ras_if);
72 adev->umc.ras_if = NULL;
73 return r;
74 }
75
amdgpu_umc_ras_fini(struct amdgpu_device * adev)76 void amdgpu_umc_ras_fini(struct amdgpu_device *adev)
77 {
78 if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__UMC) &&
79 adev->umc.ras_if) {
80 struct ras_common_if *ras_if = adev->umc.ras_if;
81 struct ras_ih_if ih_info = {
82 .head = *ras_if,
83 .cb = amdgpu_umc_process_ras_data_cb,
84 };
85
86 amdgpu_ras_late_fini(adev, ras_if, &ih_info);
87 kfree(ras_if);
88 }
89 }
90
amdgpu_umc_process_ras_data_cb(struct amdgpu_device * adev,void * ras_error_status,struct amdgpu_iv_entry * entry)91 int amdgpu_umc_process_ras_data_cb(struct amdgpu_device *adev,
92 void *ras_error_status,
93 struct amdgpu_iv_entry *entry)
94 {
95 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
96
97 kgd2kfd_set_sram_ecc_flag(adev->kfd.dev);
98 if (adev->umc.funcs &&
99 adev->umc.funcs->query_ras_error_count)
100 adev->umc.funcs->query_ras_error_count(adev, ras_error_status);
101
102 if (adev->umc.funcs &&
103 adev->umc.funcs->query_ras_error_address &&
104 adev->umc.max_ras_err_cnt_per_query) {
105 err_data->err_addr =
106 kcalloc(adev->umc.max_ras_err_cnt_per_query,
107 sizeof(struct eeprom_table_record), GFP_KERNEL);
108
109 /* still call query_ras_error_address to clear error status
110 * even NOMEM error is encountered
111 */
112 if(!err_data->err_addr)
113 dev_warn(adev->dev, "Failed to alloc memory for "
114 "umc error address record!\n");
115
116 /* umc query_ras_error_address is also responsible for clearing
117 * error status
118 */
119 adev->umc.funcs->query_ras_error_address(adev, ras_error_status);
120 }
121
122 /* only uncorrectable error needs gpu reset */
123 if (err_data->ue_count) {
124 dev_info(adev->dev, "%ld uncorrectable hardware errors "
125 "detected in UMC block\n",
126 err_data->ue_count);
127
128 if ((amdgpu_bad_page_threshold != 0) &&
129 err_data->err_addr_cnt &&
130 amdgpu_ras_add_bad_pages(adev, err_data->err_addr,
131 err_data->err_addr_cnt))
132 dev_warn(adev->dev, "Failed to add ras bad page!\n");
133
134 amdgpu_ras_reset_gpu(adev);
135 }
136
137 kfree(err_data->err_addr);
138 return AMDGPU_RAS_SUCCESS;
139 }
140
amdgpu_umc_process_ecc_irq(struct amdgpu_device * adev,struct amdgpu_irq_src * source,struct amdgpu_iv_entry * entry)141 int amdgpu_umc_process_ecc_irq(struct amdgpu_device *adev,
142 struct amdgpu_irq_src *source,
143 struct amdgpu_iv_entry *entry)
144 {
145 struct ras_common_if *ras_if = adev->umc.ras_if;
146 struct ras_dispatch_if ih_data = {
147 .entry = entry,
148 };
149
150 if (!ras_if)
151 return 0;
152
153 ih_data.head = *ras_if;
154
155 amdgpu_ras_interrupt_dispatch(adev, &ih_data);
156 return 0;
157 }
158