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;
96 struct bin_attribute badpages_attr;
98 struct ras_manager *objs;
101 struct work_struct recovery_work;
102 atomic_t in_recovery;
103 struct amdgpu_device *adev;
104 /* error handler data */
105 struct ras_err_handler_data *eh_data;
106 struct mutex recovery_lock;
112 /* interrupt bottom half */
113 struct work_struct ih_work;
117 /* full of entries */
119 unsigned int ring_size;
120 unsigned int element_size;
121 unsigned int aligned_element_size;
128 char debugfs_name[32];
131 struct ras_err_data {
132 unsigned long ue_count;
133 unsigned long ce_count;
134 unsigned long err_addr_cnt;
138 struct ras_err_handler_data {
139 /* point to bad pages array */
142 struct amdgpu_bo *bo;
144 /* the count of entries */
146 /* the space can place new entries */
148 /* last reserved entry's index + 1 */
153 struct ras_common_if head;
154 /* reference count */
157 struct list_head node;
159 struct amdgpu_device *adev;
163 struct device_attribute sysfs_attr;
167 struct ras_fs_data fs_data;
170 struct ras_ih_data ih_data;
172 struct ras_err_data err_data;
181 /* interfaces for IP */
183 struct ras_common_if head;
185 char debugfs_name[32];
188 struct ras_query_if {
189 struct ras_common_if head;
190 unsigned long ue_count;
191 unsigned long ce_count;
194 struct ras_inject_if {
195 struct ras_common_if head;
201 struct ras_common_if head;
206 struct ras_common_if head;
210 struct ras_dispatch_if {
211 struct ras_common_if head;
212 struct amdgpu_iv_entry *entry;
215 struct ras_debug_if {
217 struct ras_common_if head;
218 struct ras_inject_if inject;
224 * 1: ras feature enable (enabled by default)
226 * 2: ras framework init (in ip_init)
229 * 4: debugfs/sysfs create
231 * 6: debugfs/sysfs remove
236 #define amdgpu_ras_get_context(adev) ((adev)->psp.ras.ras)
237 #define amdgpu_ras_set_context(adev, ras_con) ((adev)->psp.ras.ras = (ras_con))
239 /* check if ras is supported on block, say, sdma, gfx */
240 static inline int amdgpu_ras_is_supported(struct amdgpu_device *adev,
243 struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
245 if (block >= AMDGPU_RAS_BLOCK_COUNT)
247 return ras && (ras->supported & (1 << block));
250 int amdgpu_ras_request_reset_on_boot(struct amdgpu_device *adev,
253 void amdgpu_ras_resume(struct amdgpu_device *adev);
254 void amdgpu_ras_suspend(struct amdgpu_device *adev);
256 int amdgpu_ras_query_error_count(struct amdgpu_device *adev,
259 /* error handling functions */
260 int amdgpu_ras_add_bad_pages(struct amdgpu_device *adev,
261 unsigned long *bps, int pages);
263 int amdgpu_ras_reserve_bad_pages(struct amdgpu_device *adev);
265 static inline int amdgpu_ras_reset_gpu(struct amdgpu_device *adev,
268 struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
270 if (atomic_cmpxchg(&ras->in_recovery, 0, 1) == 0)
271 schedule_work(&ras->recovery_work);
275 static inline enum ta_ras_block
276 amdgpu_ras_block_to_ta(enum amdgpu_ras_block block) {
278 case AMDGPU_RAS_BLOCK__UMC:
279 return TA_RAS_BLOCK__UMC;
280 case AMDGPU_RAS_BLOCK__SDMA:
281 return TA_RAS_BLOCK__SDMA;
282 case AMDGPU_RAS_BLOCK__GFX:
283 return TA_RAS_BLOCK__GFX;
284 case AMDGPU_RAS_BLOCK__MMHUB:
285 return TA_RAS_BLOCK__MMHUB;
286 case AMDGPU_RAS_BLOCK__ATHUB:
287 return TA_RAS_BLOCK__ATHUB;
288 case AMDGPU_RAS_BLOCK__PCIE_BIF:
289 return TA_RAS_BLOCK__PCIE_BIF;
290 case AMDGPU_RAS_BLOCK__HDP:
291 return TA_RAS_BLOCK__HDP;
292 case AMDGPU_RAS_BLOCK__XGMI_WAFL:
293 return TA_RAS_BLOCK__XGMI_WAFL;
294 case AMDGPU_RAS_BLOCK__DF:
295 return TA_RAS_BLOCK__DF;
296 case AMDGPU_RAS_BLOCK__SMN:
297 return TA_RAS_BLOCK__SMN;
298 case AMDGPU_RAS_BLOCK__SEM:
299 return TA_RAS_BLOCK__SEM;
300 case AMDGPU_RAS_BLOCK__MP0:
301 return TA_RAS_BLOCK__MP0;
302 case AMDGPU_RAS_BLOCK__MP1:
303 return TA_RAS_BLOCK__MP1;
304 case AMDGPU_RAS_BLOCK__FUSE:
305 return TA_RAS_BLOCK__FUSE;
307 WARN_ONCE(1, "RAS ERROR: unexpected block id %d\n", block);
308 return TA_RAS_BLOCK__UMC;
312 static inline enum ta_ras_error_type
313 amdgpu_ras_error_to_ta(enum amdgpu_ras_error_type error) {
315 case AMDGPU_RAS_ERROR__NONE:
316 return TA_RAS_ERROR__NONE;
317 case AMDGPU_RAS_ERROR__PARITY:
318 return TA_RAS_ERROR__PARITY;
319 case AMDGPU_RAS_ERROR__SINGLE_CORRECTABLE:
320 return TA_RAS_ERROR__SINGLE_CORRECTABLE;
321 case AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE:
322 return TA_RAS_ERROR__MULTI_UNCORRECTABLE;
323 case AMDGPU_RAS_ERROR__POISON:
324 return TA_RAS_ERROR__POISON;
326 WARN_ONCE(1, "RAS ERROR: unexpected error type %d\n", error);
327 return TA_RAS_ERROR__NONE;
331 /* called in ip_init and ip_fini */
332 int amdgpu_ras_init(struct amdgpu_device *adev);
333 int amdgpu_ras_fini(struct amdgpu_device *adev);
334 int amdgpu_ras_pre_fini(struct amdgpu_device *adev);
336 int amdgpu_ras_feature_enable(struct amdgpu_device *adev,
337 struct ras_common_if *head, bool enable);
339 int amdgpu_ras_feature_enable_on_boot(struct amdgpu_device *adev,
340 struct ras_common_if *head, bool enable);
342 int amdgpu_ras_sysfs_create(struct amdgpu_device *adev,
343 struct ras_fs_if *head);
345 int amdgpu_ras_sysfs_remove(struct amdgpu_device *adev,
346 struct ras_common_if *head);
348 void amdgpu_ras_debugfs_create(struct amdgpu_device *adev,
349 struct ras_fs_if *head);
351 void amdgpu_ras_debugfs_remove(struct amdgpu_device *adev,
352 struct ras_common_if *head);
354 int amdgpu_ras_error_query(struct amdgpu_device *adev,
355 struct ras_query_if *info);
357 int amdgpu_ras_error_inject(struct amdgpu_device *adev,
358 struct ras_inject_if *info);
360 int amdgpu_ras_interrupt_add_handler(struct amdgpu_device *adev,
361 struct ras_ih_if *info);
363 int amdgpu_ras_interrupt_remove_handler(struct amdgpu_device *adev,
364 struct ras_ih_if *info);
366 int amdgpu_ras_interrupt_dispatch(struct amdgpu_device *adev,
367 struct ras_dispatch_if *info);