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1/*
2 * Copyright 2023 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#include "kfd_events.h"
24#include "kfd_debug.h"
25#include "soc15_int.h"
26#include "kfd_device_queue_manager.h"
27
28/*
29 * GFX10 SQ Interrupts
30 *
31 * There are 3 encoding types of interrupts sourced from SQ sent as a 44-bit
32 * packet to the Interrupt Handler:
33 * Auto - Generated by the SQG (various cmd overflows, timestamps etc)
34 * Wave - Generated by S_SENDMSG through a shader program
35 * Error - HW generated errors (Illegal instructions, Memviols, EDC etc)
36 *
37 * The 44-bit packet is mapped as {context_id1[7:0],context_id0[31:0]} plus
38 * 4-bits for VMID (SOC15_VMID_FROM_IH_ENTRY) as such:
39 *
40 * - context_id1[7:6]
41 * Encoding type (0 = Auto, 1 = Wave, 2 = Error)
42 *
43 * - context_id0[24]
44 * PRIV bit indicates that Wave S_SEND or error occurred within trap
45 *
46 * - context_id0[22:0]
47 * 23-bit data with the following layout per encoding type:
48 * Auto - only context_id0[8:0] is used, which reports various interrupts
49 * generated by SQG. The rest is 0.
50 * Wave - user data sent from m0 via S_SENDMSG
51 * Error - Error type (context_id0[22:19]), Error Details (rest of bits)
52 *
53 * The other context_id bits show coordinates (SE/SH/CU/SIMD/WGP) for wave
54 * S_SENDMSG and Errors. These are 0 for Auto.
55 */
56
57enum SQ_INTERRUPT_WORD_ENCODING {
58 SQ_INTERRUPT_WORD_ENCODING_AUTO = 0x0,
59 SQ_INTERRUPT_WORD_ENCODING_INST,
60 SQ_INTERRUPT_WORD_ENCODING_ERROR,
61};
62
63enum SQ_INTERRUPT_ERROR_TYPE {
64 SQ_INTERRUPT_ERROR_TYPE_EDC_FUE = 0x0,
65 SQ_INTERRUPT_ERROR_TYPE_ILLEGAL_INST,
66 SQ_INTERRUPT_ERROR_TYPE_MEMVIOL,
67 SQ_INTERRUPT_ERROR_TYPE_EDC_FED,
68};
69
70/* SQ_INTERRUPT_WORD_AUTO_CTXID */
71#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE__SHIFT 0
72#define SQ_INTERRUPT_WORD_AUTO_CTXID0__WLT__SHIFT 1
73#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_BUF0_FULL__SHIFT 2
74#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_BUF1_FULL__SHIFT 3
75#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_UTC_ERROR__SHIFT 7
76#define SQ_INTERRUPT_WORD_AUTO_CTXID1__SE_ID__SHIFT 4
77#define SQ_INTERRUPT_WORD_AUTO_CTXID1__ENCODING__SHIFT 6
78
79#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_MASK 0x00000001
80#define SQ_INTERRUPT_WORD_AUTO_CTXID0__WLT_MASK 0x00000002
81#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_BUF0_FULL_MASK 0x00000004
82#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_BUF1_FULL_MASK 0x00000008
83#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_UTC_ERROR_MASK 0x00000080
84#define SQ_INTERRUPT_WORD_AUTO_CTXID1__SE_ID_MASK 0x030
85#define SQ_INTERRUPT_WORD_AUTO_CTXID1__ENCODING_MASK 0x0c0
86
87/* SQ_INTERRUPT_WORD_WAVE_CTXID */
88#define SQ_INTERRUPT_WORD_WAVE_CTXID0__DATA__SHIFT 0
89#define SQ_INTERRUPT_WORD_WAVE_CTXID0__SA_ID__SHIFT 23
90#define SQ_INTERRUPT_WORD_WAVE_CTXID0__PRIV__SHIFT 24
91#define SQ_INTERRUPT_WORD_WAVE_CTXID0__WAVE_ID__SHIFT 25
92#define SQ_INTERRUPT_WORD_WAVE_CTXID0__SIMD_ID__SHIFT 30
93#define SQ_INTERRUPT_WORD_WAVE_CTXID1__WGP_ID__SHIFT 0
94#define SQ_INTERRUPT_WORD_WAVE_CTXID1__SE_ID__SHIFT 4
95#define SQ_INTERRUPT_WORD_WAVE_CTXID1__ENCODING__SHIFT 6
96
97#define SQ_INTERRUPT_WORD_WAVE_CTXID0__DATA_MASK 0x000007fffff
98#define SQ_INTERRUPT_WORD_WAVE_CTXID0__SA_ID_MASK 0x0000800000
99#define SQ_INTERRUPT_WORD_WAVE_CTXID0__PRIV_MASK 0x00001000000
100#define SQ_INTERRUPT_WORD_WAVE_CTXID0__WAVE_ID_MASK 0x0003e000000
101#define SQ_INTERRUPT_WORD_WAVE_CTXID0__SIMD_ID_MASK 0x000c0000000
102#define SQ_INTERRUPT_WORD_WAVE_CTXID1__WGP_ID_MASK 0x00f
103#define SQ_INTERRUPT_WORD_WAVE_CTXID1__SE_ID_MASK 0x030
104#define SQ_INTERRUPT_WORD_WAVE_CTXID1__ENCODING_MASK 0x0c0
105
106#define KFD_CTXID0__ERR_TYPE_MASK 0x780000
107#define KFD_CTXID0__ERR_TYPE__SHIFT 19
108
109/* GFX10 SQ interrupt ENC type bit (context_id1[7:6]) for wave s_sendmsg */
110#define KFD_CONTEXT_ID1_ENC_TYPE_WAVE_MASK 0x40
111/* GFX10 SQ interrupt PRIV bit (context_id0[24]) for s_sendmsg inside trap */
112#define KFD_CONTEXT_ID0_PRIV_MASK 0x1000000
113/*
114 * The debugger will send user data(m0) with PRIV=1 to indicate it requires
115 * notification from the KFD with the following queue id (DOORBELL_ID) and
116 * trap code (TRAP_CODE).
117 */
118#define KFD_CONTEXT_ID0_DEBUG_DOORBELL_MASK 0x0003ff
119#define KFD_CONTEXT_ID0_DEBUG_TRAP_CODE_SHIFT 10
120#define KFD_CONTEXT_ID0_DEBUG_TRAP_CODE_MASK 0x07fc00
121#define KFD_DEBUG_DOORBELL_ID(ctxid0) ((ctxid0) & \
122 KFD_CONTEXT_ID0_DEBUG_DOORBELL_MASK)
123#define KFD_DEBUG_TRAP_CODE(ctxid0) (((ctxid0) & \
124 KFD_CONTEXT_ID0_DEBUG_TRAP_CODE_MASK) \
125 >> KFD_CONTEXT_ID0_DEBUG_TRAP_CODE_SHIFT)
126#define KFD_DEBUG_CP_BAD_OP_ECODE_MASK 0x3fffc00
127#define KFD_DEBUG_CP_BAD_OP_ECODE_SHIFT 10
128#define KFD_DEBUG_CP_BAD_OP_ECODE(ctxid0) (((ctxid0) & \
129 KFD_DEBUG_CP_BAD_OP_ECODE_MASK) \
130 >> KFD_DEBUG_CP_BAD_OP_ECODE_SHIFT)
131
132static void event_interrupt_poison_consumption(struct kfd_node *dev,
133 uint16_t pasid, uint16_t client_id)
134{
135 int old_poison, ret = -EINVAL;
136 struct kfd_process *p = kfd_lookup_process_by_pasid(pasid);
137
138 if (!p)
139 return;
140
141 /* all queues of a process will be unmapped in one time */
142 old_poison = atomic_cmpxchg(&p->poison, 0, 1);
143 kfd_unref_process(p);
144 if (old_poison)
145 return;
146
147 switch (client_id) {
148 case SOC15_IH_CLIENTID_SE0SH:
149 case SOC15_IH_CLIENTID_SE1SH:
150 case SOC15_IH_CLIENTID_SE2SH:
151 case SOC15_IH_CLIENTID_SE3SH:
152 case SOC15_IH_CLIENTID_UTCL2:
153 ret = kfd_dqm_evict_pasid(dev->dqm, pasid);
154 break;
155 case SOC15_IH_CLIENTID_SDMA0:
156 case SOC15_IH_CLIENTID_SDMA1:
157 case SOC15_IH_CLIENTID_SDMA2:
158 case SOC15_IH_CLIENTID_SDMA3:
159 case SOC15_IH_CLIENTID_SDMA4:
160 break;
161 default:
162 break;
163 }
164
165 kfd_signal_poison_consumed_event(dev, pasid);
166
167 /* resetting queue passes, do page retirement without gpu reset
168 * resetting queue fails, fallback to gpu reset solution
169 */
170 if (!ret) {
171 dev_warn(dev->adev->dev,
172 "RAS poison consumption, unmap queue flow succeeded: client id %d\n",
173 client_id);
174 amdgpu_amdkfd_ras_poison_consumption_handler(dev->adev, false);
175 } else {
176 dev_warn(dev->adev->dev,
177 "RAS poison consumption, fall back to gpu reset flow: client id %d\n",
178 client_id);
179 amdgpu_amdkfd_ras_poison_consumption_handler(dev->adev, true);
180 }
181}
182
183static bool event_interrupt_isr_v10(struct kfd_node *dev,
184 const uint32_t *ih_ring_entry,
185 uint32_t *patched_ihre,
186 bool *patched_flag)
187{
188 uint16_t source_id, client_id, pasid, vmid;
189 const uint32_t *data = ih_ring_entry;
190
191 source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
192 client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
193
194 /* Only handle interrupts from KFD VMIDs */
195 vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
196 if (!KFD_IRQ_IS_FENCE(client_id, source_id) &&
197 (vmid < dev->vm_info.first_vmid_kfd ||
198 vmid > dev->vm_info.last_vmid_kfd))
199 return false;
200
201 pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
202
203 /* Only handle clients we care about */
204 if (client_id != SOC15_IH_CLIENTID_GRBM_CP &&
205 client_id != SOC15_IH_CLIENTID_SDMA0 &&
206 client_id != SOC15_IH_CLIENTID_SDMA1 &&
207 client_id != SOC15_IH_CLIENTID_SDMA2 &&
208 client_id != SOC15_IH_CLIENTID_SDMA3 &&
209 client_id != SOC15_IH_CLIENTID_SDMA4 &&
210 client_id != SOC15_IH_CLIENTID_SDMA5 &&
211 client_id != SOC15_IH_CLIENTID_SDMA6 &&
212 client_id != SOC15_IH_CLIENTID_SDMA7 &&
213 client_id != SOC15_IH_CLIENTID_VMC &&
214 client_id != SOC15_IH_CLIENTID_VMC1 &&
215 client_id != SOC15_IH_CLIENTID_UTCL2 &&
216 client_id != SOC15_IH_CLIENTID_SE0SH &&
217 client_id != SOC15_IH_CLIENTID_SE1SH &&
218 client_id != SOC15_IH_CLIENTID_SE2SH &&
219 client_id != SOC15_IH_CLIENTID_SE3SH)
220 return false;
221
222 pr_debug("client id 0x%x, source id %d, vmid %d, pasid 0x%x. raw data:\n",
223 client_id, source_id, vmid, pasid);
224 pr_debug("%8X, %8X, %8X, %8X, %8X, %8X, %8X, %8X.\n",
225 data[0], data[1], data[2], data[3],
226 data[4], data[5], data[6], data[7]);
227
228 /* If there is no valid PASID, it's likely a bug */
229 if (WARN_ONCE(pasid == 0, "Bug: No PASID in KFD interrupt"))
230 return 0;
231
232 /* Interrupt types we care about: various signals and faults.
233 * They will be forwarded to a work queue (see below).
234 */
235 return source_id == SOC15_INTSRC_CP_END_OF_PIPE ||
236 source_id == SOC15_INTSRC_SDMA_TRAP ||
237 source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG ||
238 source_id == SOC15_INTSRC_CP_BAD_OPCODE ||
239 client_id == SOC15_IH_CLIENTID_VMC ||
240 client_id == SOC15_IH_CLIENTID_VMC1 ||
241 client_id == SOC15_IH_CLIENTID_UTCL2 ||
242 KFD_IRQ_IS_FENCE(client_id, source_id);
243}
244
245static void event_interrupt_wq_v10(struct kfd_node *dev,
246 const uint32_t *ih_ring_entry)
247{
248 uint16_t source_id, client_id, pasid, vmid;
249 uint32_t context_id0, context_id1;
250 uint32_t encoding, sq_intr_err_type;
251
252 source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
253 client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
254 pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
255 vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
256 context_id0 = SOC15_CONTEXT_ID0_FROM_IH_ENTRY(ih_ring_entry);
257 context_id1 = SOC15_CONTEXT_ID1_FROM_IH_ENTRY(ih_ring_entry);
258
259 if (client_id == SOC15_IH_CLIENTID_GRBM_CP ||
260 client_id == SOC15_IH_CLIENTID_SE0SH ||
261 client_id == SOC15_IH_CLIENTID_SE1SH ||
262 client_id == SOC15_IH_CLIENTID_SE2SH ||
263 client_id == SOC15_IH_CLIENTID_SE3SH) {
264 if (source_id == SOC15_INTSRC_CP_END_OF_PIPE)
265 kfd_signal_event_interrupt(pasid, context_id0, 32);
266 else if (source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG) {
267 encoding = REG_GET_FIELD(context_id1,
268 SQ_INTERRUPT_WORD_WAVE_CTXID1, ENCODING);
269 switch (encoding) {
270 case SQ_INTERRUPT_WORD_ENCODING_AUTO:
271 pr_debug_ratelimited(
272 "sq_intr: auto, se %d, ttrace %d, wlt %d, ttrac_buf0_full %d, ttrac_buf1_full %d, ttrace_utc_err %d\n",
273 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_AUTO_CTXID1,
274 SE_ID),
275 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
276 THREAD_TRACE),
277 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
278 WLT),
279 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
280 THREAD_TRACE_BUF0_FULL),
281 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
282 THREAD_TRACE_BUF1_FULL),
283 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
284 THREAD_TRACE_UTC_ERROR));
285 break;
286 case SQ_INTERRUPT_WORD_ENCODING_INST:
287 pr_debug_ratelimited("sq_intr: inst, se %d, data 0x%x, sa %d, priv %d, wave_id %d, simd_id %d, wgp_id %d\n",
288 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
289 SE_ID),
290 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
291 DATA),
292 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
293 SA_ID),
294 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
295 PRIV),
296 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
297 WAVE_ID),
298 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
299 SIMD_ID),
300 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
301 WGP_ID));
302 if (context_id0 & SQ_INTERRUPT_WORD_WAVE_CTXID0__PRIV_MASK) {
303 if (kfd_set_dbg_ev_from_interrupt(dev, pasid,
304 KFD_DEBUG_DOORBELL_ID(context_id0),
305 KFD_DEBUG_TRAP_CODE(context_id0),
306 NULL, 0))
307 return;
308 }
309 break;
310 case SQ_INTERRUPT_WORD_ENCODING_ERROR:
311 sq_intr_err_type = REG_GET_FIELD(context_id0, KFD_CTXID0,
312 ERR_TYPE);
313 pr_warn_ratelimited("sq_intr: error, se %d, data 0x%x, sa %d, priv %d, wave_id %d, simd_id %d, wgp_id %d, err_type %d\n",
314 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
315 SE_ID),
316 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
317 DATA),
318 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
319 SA_ID),
320 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
321 PRIV),
322 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
323 WAVE_ID),
324 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
325 SIMD_ID),
326 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
327 WGP_ID),
328 sq_intr_err_type);
329 if (sq_intr_err_type != SQ_INTERRUPT_ERROR_TYPE_ILLEGAL_INST &&
330 sq_intr_err_type != SQ_INTERRUPT_ERROR_TYPE_MEMVIOL) {
331 event_interrupt_poison_consumption(dev, pasid, source_id);
332 return;
333 }
334 break;
335 default:
336 break;
337 }
338 kfd_signal_event_interrupt(pasid, context_id0 & 0x7fffff, 23);
339 } else if (source_id == SOC15_INTSRC_CP_BAD_OPCODE) {
340 kfd_set_dbg_ev_from_interrupt(dev, pasid,
341 KFD_DEBUG_DOORBELL_ID(context_id0),
342 KFD_EC_MASK(KFD_DEBUG_CP_BAD_OP_ECODE(context_id0)),
343 NULL,
344 0);
345 }
346 } else if (client_id == SOC15_IH_CLIENTID_SDMA0 ||
347 client_id == SOC15_IH_CLIENTID_SDMA1 ||
348 client_id == SOC15_IH_CLIENTID_SDMA2 ||
349 client_id == SOC15_IH_CLIENTID_SDMA3 ||
350 (client_id == SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid &&
351 KFD_GC_VERSION(dev) == IP_VERSION(10, 3, 0)) ||
352 client_id == SOC15_IH_CLIENTID_SDMA4 ||
353 client_id == SOC15_IH_CLIENTID_SDMA5 ||
354 client_id == SOC15_IH_CLIENTID_SDMA6 ||
355 client_id == SOC15_IH_CLIENTID_SDMA7) {
356 if (source_id == SOC15_INTSRC_SDMA_TRAP) {
357 kfd_signal_event_interrupt(pasid, context_id0 & 0xfffffff, 28);
358 } else if (source_id == SOC15_INTSRC_SDMA_ECC) {
359 event_interrupt_poison_consumption(dev, pasid, source_id);
360 return;
361 }
362 } else if (client_id == SOC15_IH_CLIENTID_VMC ||
363 client_id == SOC15_IH_CLIENTID_VMC1 ||
364 client_id == SOC15_IH_CLIENTID_UTCL2) {
365 struct kfd_vm_fault_info info = {0};
366 uint16_t ring_id = SOC15_RING_ID_FROM_IH_ENTRY(ih_ring_entry);
367 struct kfd_hsa_memory_exception_data exception_data;
368
369 if (client_id == SOC15_IH_CLIENTID_UTCL2 &&
370 amdgpu_amdkfd_ras_query_utcl2_poison_status(dev->adev)) {
371 event_interrupt_poison_consumption(dev, pasid, client_id);
372 return;
373 }
374
375 info.vmid = vmid;
376 info.mc_id = client_id;
377 info.page_addr = ih_ring_entry[4] |
378 (uint64_t)(ih_ring_entry[5] & 0xf) << 32;
379 info.prot_valid = ring_id & 0x08;
380 info.prot_read = ring_id & 0x10;
381 info.prot_write = ring_id & 0x20;
382
383 memset(&exception_data, 0, sizeof(exception_data));
384 exception_data.gpu_id = dev->id;
385 exception_data.va = (info.page_addr) << PAGE_SHIFT;
386 exception_data.failure.NotPresent = info.prot_valid ? 1 : 0;
387 exception_data.failure.NoExecute = info.prot_exec ? 1 : 0;
388 exception_data.failure.ReadOnly = info.prot_write ? 1 : 0;
389 exception_data.failure.imprecise = 0;
390
391 kfd_set_dbg_ev_from_interrupt(dev,
392 pasid,
393 -1,
394 KFD_EC_MASK(EC_DEVICE_MEMORY_VIOLATION),
395 &exception_data,
396 sizeof(exception_data));
397 } else if (KFD_IRQ_IS_FENCE(client_id, source_id)) {
398 kfd_process_close_interrupt_drain(pasid);
399 }
400}
401
402const struct kfd_event_interrupt_class event_interrupt_class_v10 = {
403 .interrupt_isr = event_interrupt_isr_v10,
404 .interrupt_wq = event_interrupt_wq_v10,
405};