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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 bool event_interrupt_isr_v10(struct kfd_node *dev,
133 const uint32_t *ih_ring_entry,
134 uint32_t *patched_ihre,
135 bool *patched_flag)
136{
137 uint16_t source_id, client_id, pasid, vmid;
138 const uint32_t *data = ih_ring_entry;
139
140 source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
141 client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
142
143 /* Only handle interrupts from KFD VMIDs */
144 vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
145 if (!KFD_IRQ_IS_FENCE(client_id, source_id) &&
146 (vmid < dev->vm_info.first_vmid_kfd ||
147 vmid > dev->vm_info.last_vmid_kfd))
148 return false;
149
150 pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
151
152 /* Only handle clients we care about */
153 if (client_id != SOC15_IH_CLIENTID_GRBM_CP &&
154 client_id != SOC15_IH_CLIENTID_SDMA0 &&
155 client_id != SOC15_IH_CLIENTID_SDMA1 &&
156 client_id != SOC15_IH_CLIENTID_SDMA2 &&
157 client_id != SOC15_IH_CLIENTID_SDMA3 &&
158 client_id != SOC15_IH_CLIENTID_SDMA4 &&
159 client_id != SOC15_IH_CLIENTID_SDMA5 &&
160 client_id != SOC15_IH_CLIENTID_SDMA6 &&
161 client_id != SOC15_IH_CLIENTID_SDMA7 &&
162 client_id != SOC15_IH_CLIENTID_VMC &&
163 client_id != SOC15_IH_CLIENTID_VMC1 &&
164 client_id != SOC15_IH_CLIENTID_UTCL2 &&
165 client_id != SOC15_IH_CLIENTID_SE0SH &&
166 client_id != SOC15_IH_CLIENTID_SE1SH &&
167 client_id != SOC15_IH_CLIENTID_SE2SH &&
168 client_id != SOC15_IH_CLIENTID_SE3SH)
169 return false;
170
171 pr_debug("client id 0x%x, source id %d, vmid %d, pasid 0x%x. raw data:\n",
172 client_id, source_id, vmid, pasid);
173 pr_debug("%8X, %8X, %8X, %8X, %8X, %8X, %8X, %8X.\n",
174 data[0], data[1], data[2], data[3],
175 data[4], data[5], data[6], data[7]);
176
177 /* If there is no valid PASID, it's likely a bug */
178 if (WARN_ONCE(pasid == 0, "Bug: No PASID in KFD interrupt"))
179 return 0;
180
181 /* Interrupt types we care about: various signals and faults.
182 * They will be forwarded to a work queue (see below).
183 */
184 return source_id == SOC15_INTSRC_CP_END_OF_PIPE ||
185 source_id == SOC15_INTSRC_SDMA_TRAP ||
186 source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG ||
187 source_id == SOC15_INTSRC_CP_BAD_OPCODE ||
188 client_id == SOC15_IH_CLIENTID_VMC ||
189 client_id == SOC15_IH_CLIENTID_VMC1 ||
190 client_id == SOC15_IH_CLIENTID_UTCL2 ||
191 KFD_IRQ_IS_FENCE(client_id, source_id);
192}
193
194static void event_interrupt_wq_v10(struct kfd_node *dev,
195 const uint32_t *ih_ring_entry)
196{
197 uint16_t source_id, client_id, pasid, vmid;
198 uint32_t context_id0, context_id1;
199 uint32_t encoding, sq_intr_err_type;
200
201 source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
202 client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
203 pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
204 vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
205 context_id0 = SOC15_CONTEXT_ID0_FROM_IH_ENTRY(ih_ring_entry);
206 context_id1 = SOC15_CONTEXT_ID1_FROM_IH_ENTRY(ih_ring_entry);
207
208 if (client_id == SOC15_IH_CLIENTID_GRBM_CP ||
209 client_id == SOC15_IH_CLIENTID_SE0SH ||
210 client_id == SOC15_IH_CLIENTID_SE1SH ||
211 client_id == SOC15_IH_CLIENTID_SE2SH ||
212 client_id == SOC15_IH_CLIENTID_SE3SH) {
213 if (source_id == SOC15_INTSRC_CP_END_OF_PIPE)
214 kfd_signal_event_interrupt(pasid, context_id0, 32);
215 else if (source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG) {
216 encoding = REG_GET_FIELD(context_id1,
217 SQ_INTERRUPT_WORD_WAVE_CTXID1, ENCODING);
218 switch (encoding) {
219 case SQ_INTERRUPT_WORD_ENCODING_AUTO:
220 pr_debug_ratelimited(
221 "sq_intr: auto, se %d, ttrace %d, wlt %d, ttrac_buf0_full %d, ttrac_buf1_full %d, ttrace_utc_err %d\n",
222 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_AUTO_CTXID1,
223 SE_ID),
224 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
225 THREAD_TRACE),
226 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
227 WLT),
228 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
229 THREAD_TRACE_BUF0_FULL),
230 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
231 THREAD_TRACE_BUF1_FULL),
232 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
233 THREAD_TRACE_UTC_ERROR));
234 break;
235 case SQ_INTERRUPT_WORD_ENCODING_INST:
236 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",
237 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
238 SE_ID),
239 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
240 DATA),
241 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
242 SA_ID),
243 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
244 PRIV),
245 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
246 WAVE_ID),
247 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
248 SIMD_ID),
249 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
250 WGP_ID));
251 if (context_id0 & SQ_INTERRUPT_WORD_WAVE_CTXID0__PRIV_MASK) {
252 if (kfd_set_dbg_ev_from_interrupt(dev, pasid,
253 KFD_DEBUG_DOORBELL_ID(context_id0),
254 KFD_DEBUG_TRAP_CODE(context_id0),
255 NULL, 0))
256 return;
257 }
258 break;
259 case SQ_INTERRUPT_WORD_ENCODING_ERROR:
260 sq_intr_err_type = REG_GET_FIELD(context_id0, KFD_CTXID0,
261 ERR_TYPE);
262 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",
263 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
264 SE_ID),
265 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
266 DATA),
267 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
268 SA_ID),
269 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
270 PRIV),
271 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
272 WAVE_ID),
273 REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
274 SIMD_ID),
275 REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
276 WGP_ID),
277 sq_intr_err_type);
278 break;
279 default:
280 break;
281 }
282 kfd_signal_event_interrupt(pasid, context_id0 & 0x7fffff, 23);
283 } else if (source_id == SOC15_INTSRC_CP_BAD_OPCODE &&
284 KFD_DBG_EC_TYPE_IS_PACKET(KFD_DEBUG_CP_BAD_OP_ECODE(context_id0))) {
285 kfd_set_dbg_ev_from_interrupt(dev, pasid,
286 KFD_DEBUG_DOORBELL_ID(context_id0),
287 KFD_EC_MASK(KFD_DEBUG_CP_BAD_OP_ECODE(context_id0)),
288 NULL,
289 0);
290 }
291 } else if (client_id == SOC15_IH_CLIENTID_SDMA0 ||
292 client_id == SOC15_IH_CLIENTID_SDMA1 ||
293 client_id == SOC15_IH_CLIENTID_SDMA2 ||
294 client_id == SOC15_IH_CLIENTID_SDMA3 ||
295 (client_id == SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid &&
296 KFD_GC_VERSION(dev) == IP_VERSION(10, 3, 0)) ||
297 client_id == SOC15_IH_CLIENTID_SDMA4 ||
298 client_id == SOC15_IH_CLIENTID_SDMA5 ||
299 client_id == SOC15_IH_CLIENTID_SDMA6 ||
300 client_id == SOC15_IH_CLIENTID_SDMA7) {
301 if (source_id == SOC15_INTSRC_SDMA_TRAP) {
302 kfd_signal_event_interrupt(pasid, context_id0 & 0xfffffff, 28);
303 }
304 } else if (client_id == SOC15_IH_CLIENTID_VMC ||
305 client_id == SOC15_IH_CLIENTID_VMC1 ||
306 client_id == SOC15_IH_CLIENTID_UTCL2) {
307 struct kfd_vm_fault_info info = {0};
308 uint16_t ring_id = SOC15_RING_ID_FROM_IH_ENTRY(ih_ring_entry);
309 struct kfd_hsa_memory_exception_data exception_data;
310
311 info.vmid = vmid;
312 info.mc_id = client_id;
313 info.page_addr = ih_ring_entry[4] |
314 (uint64_t)(ih_ring_entry[5] & 0xf) << 32;
315 info.prot_valid = ring_id & 0x08;
316 info.prot_read = ring_id & 0x10;
317 info.prot_write = ring_id & 0x20;
318
319 memset(&exception_data, 0, sizeof(exception_data));
320 exception_data.gpu_id = dev->id;
321 exception_data.va = (info.page_addr) << PAGE_SHIFT;
322 exception_data.failure.NotPresent = info.prot_valid ? 1 : 0;
323 exception_data.failure.NoExecute = info.prot_exec ? 1 : 0;
324 exception_data.failure.ReadOnly = info.prot_write ? 1 : 0;
325 exception_data.failure.imprecise = 0;
326
327 kfd_set_dbg_ev_from_interrupt(dev,
328 pasid,
329 -1,
330 KFD_EC_MASK(EC_DEVICE_MEMORY_VIOLATION),
331 &exception_data,
332 sizeof(exception_data));
333 } else if (KFD_IRQ_IS_FENCE(client_id, source_id)) {
334 kfd_process_close_interrupt_drain(pasid);
335 }
336}
337
338const struct kfd_event_interrupt_class event_interrupt_class_v10 = {
339 .interrupt_isr = event_interrupt_isr_v10,
340 .interrupt_wq = event_interrupt_wq_v10,
341};