2 * Copyright 2018 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
27 #include <linux/debugfs.h>
28 #include <linux/list.h>
30 #include "amdgpu_psp.h"
31 #include "ta_ras_if.h"
33 enum amdgpu_ras_block {
34 AMDGPU_RAS_BLOCK__UMC = 0,
35 AMDGPU_RAS_BLOCK__SDMA,
36 AMDGPU_RAS_BLOCK__GFX,
37 AMDGPU_RAS_BLOCK__MMHUB,
38 AMDGPU_RAS_BLOCK__ATHUB,
39 AMDGPU_RAS_BLOCK__PCIE_BIF,
40 AMDGPU_RAS_BLOCK__HDP,
41 AMDGPU_RAS_BLOCK__XGMI_WAFL,
43 AMDGPU_RAS_BLOCK__SMN,
44 AMDGPU_RAS_BLOCK__SEM,
45 AMDGPU_RAS_BLOCK__MP0,
46 AMDGPU_RAS_BLOCK__MP1,
47 AMDGPU_RAS_BLOCK__FUSE,
49 AMDGPU_RAS_BLOCK__LAST
52 #define AMDGPU_RAS_BLOCK_COUNT AMDGPU_RAS_BLOCK__LAST
53 #define AMDGPU_RAS_BLOCK_MASK ((1ULL << AMDGPU_RAS_BLOCK_COUNT) - 1)
55 enum amdgpu_ras_error_type {
56 AMDGPU_RAS_ERROR__NONE = 0,
57 AMDGPU_RAS_ERROR__PARITY = 1,
58 AMDGPU_RAS_ERROR__SINGLE_CORRECTABLE = 2,
59 AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE = 4,
60 AMDGPU_RAS_ERROR__POISON = 8,
64 AMDGPU_RAS_SUCCESS = 0,
71 struct ras_common_if {
72 enum amdgpu_ras_block block;
73 enum amdgpu_ras_error_type type;
74 uint32_t sub_block_index;
79 typedef int (*ras_ih_cb)(struct amdgpu_device *adev,
80 struct amdgpu_iv_entry *entry);
83 /* ras infrastructure */
85 uint32_t hw_supported;
86 /* for IP to check its ras ability. */
89 struct list_head head;
95 struct device_attribute features_attr;
97 struct ras_manager *objs;
100 struct work_struct recovery_work;
101 atomic_t in_recovery;
102 struct amdgpu_device *adev;
103 /* error handler data */
104 struct ras_err_handler_data *eh_data;
105 struct mutex recovery_lock;
110 /* interfaces for IP */
113 struct ras_common_if head;
115 char debugfs_name[32];
118 struct ras_query_if {
119 struct ras_common_if head;
120 unsigned long ue_count;
121 unsigned long ce_count;
124 struct ras_inject_if {
125 struct ras_common_if head;
131 struct ras_common_if head;
136 struct ras_common_if head;
140 struct ras_dispatch_if {
141 struct ras_common_if head;
142 struct amdgpu_iv_entry *entry;
145 struct ras_debug_if {
147 struct ras_common_if head;
148 struct ras_inject_if inject;
154 * 1: ras feature enable (enabled by default)
156 * 2: ras framework init (in ip_init)
159 * 4: debugfs/sysfs create
161 * 6: debugfs/sysfs remove
166 #define amdgpu_ras_get_context(adev) ((adev)->psp.ras.ras)
167 #define amdgpu_ras_set_context(adev, ras_con) ((adev)->psp.ras.ras = (ras_con))
169 /* check if ras is supported on block, say, sdma, gfx */
170 static inline int amdgpu_ras_is_supported(struct amdgpu_device *adev,
173 struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
175 return ras && (ras->supported & (1 << block));
178 int amdgpu_ras_query_error_count(struct amdgpu_device *adev,
181 /* error handling functions */
182 int amdgpu_ras_add_bad_pages(struct amdgpu_device *adev,
183 unsigned long *bps, int pages);
185 int amdgpu_ras_reserve_bad_pages(struct amdgpu_device *adev);
187 static inline int amdgpu_ras_reset_gpu(struct amdgpu_device *adev,
190 /* remove me when gpu reset works on vega20 A1. */
192 struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
194 if (atomic_cmpxchg(&ras->in_recovery, 0, 1) == 0)
195 schedule_work(&ras->recovery_work);
200 static inline enum ta_ras_block
201 amdgpu_ras_block_to_ta(enum amdgpu_ras_block block) {
203 case AMDGPU_RAS_BLOCK__UMC:
204 return TA_RAS_BLOCK__UMC;
205 case AMDGPU_RAS_BLOCK__SDMA:
206 return TA_RAS_BLOCK__SDMA;
207 case AMDGPU_RAS_BLOCK__GFX:
208 return TA_RAS_BLOCK__GFX;
209 case AMDGPU_RAS_BLOCK__MMHUB:
210 return TA_RAS_BLOCK__MMHUB;
211 case AMDGPU_RAS_BLOCK__ATHUB:
212 return TA_RAS_BLOCK__ATHUB;
213 case AMDGPU_RAS_BLOCK__PCIE_BIF:
214 return TA_RAS_BLOCK__PCIE_BIF;
215 case AMDGPU_RAS_BLOCK__HDP:
216 return TA_RAS_BLOCK__HDP;
217 case AMDGPU_RAS_BLOCK__XGMI_WAFL:
218 return TA_RAS_BLOCK__XGMI_WAFL;
219 case AMDGPU_RAS_BLOCK__DF:
220 return TA_RAS_BLOCK__DF;
221 case AMDGPU_RAS_BLOCK__SMN:
222 return TA_RAS_BLOCK__SMN;
223 case AMDGPU_RAS_BLOCK__SEM:
224 return TA_RAS_BLOCK__SEM;
225 case AMDGPU_RAS_BLOCK__MP0:
226 return TA_RAS_BLOCK__MP0;
227 case AMDGPU_RAS_BLOCK__MP1:
228 return TA_RAS_BLOCK__MP1;
229 case AMDGPU_RAS_BLOCK__FUSE:
230 return TA_RAS_BLOCK__FUSE;
232 WARN_ONCE(1, "RAS ERROR: unexpected block id %d\n", block);
233 return TA_RAS_BLOCK__UMC;
237 static inline enum ta_ras_error_type
238 amdgpu_ras_error_to_ta(enum amdgpu_ras_error_type error) {
240 case AMDGPU_RAS_ERROR__NONE:
241 return TA_RAS_ERROR__NONE;
242 case AMDGPU_RAS_ERROR__PARITY:
243 return TA_RAS_ERROR__PARITY;
244 case AMDGPU_RAS_ERROR__SINGLE_CORRECTABLE:
245 return TA_RAS_ERROR__SINGLE_CORRECTABLE;
246 case AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE:
247 return TA_RAS_ERROR__MULTI_UNCORRECTABLE;
248 case AMDGPU_RAS_ERROR__POISON:
249 return TA_RAS_ERROR__POISON;
251 WARN_ONCE(1, "RAS ERROR: unexpected error type %d\n", error);
252 return TA_RAS_ERROR__NONE;
256 /* called in ip_init and ip_fini */
257 int amdgpu_ras_init(struct amdgpu_device *adev);
258 void amdgpu_ras_post_init(struct amdgpu_device *adev);
259 int amdgpu_ras_fini(struct amdgpu_device *adev);
260 int amdgpu_ras_pre_fini(struct amdgpu_device *adev);
262 int amdgpu_ras_feature_enable(struct amdgpu_device *adev,
263 struct ras_common_if *head, bool enable);
265 int amdgpu_ras_feature_enable_on_boot(struct amdgpu_device *adev,
266 struct ras_common_if *head, bool enable);
268 int amdgpu_ras_sysfs_create(struct amdgpu_device *adev,
269 struct ras_fs_if *head);
271 int amdgpu_ras_sysfs_remove(struct amdgpu_device *adev,
272 struct ras_common_if *head);
274 int amdgpu_ras_debugfs_create(struct amdgpu_device *adev,
275 struct ras_fs_if *head);
277 int amdgpu_ras_debugfs_remove(struct amdgpu_device *adev,
278 struct ras_common_if *head);
280 int amdgpu_ras_error_query(struct amdgpu_device *adev,
281 struct ras_query_if *info);
283 int amdgpu_ras_error_inject(struct amdgpu_device *adev,
284 struct ras_inject_if *info);
286 int amdgpu_ras_interrupt_add_handler(struct amdgpu_device *adev,
287 struct ras_ih_if *info);
289 int amdgpu_ras_interrupt_remove_handler(struct amdgpu_device *adev,
290 struct ras_ih_if *info);
292 int amdgpu_ras_interrupt_dispatch(struct amdgpu_device *adev,
293 struct ras_dispatch_if *info);