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 * Authors: AMD
23 *
24 */
25
26 #include "dc.h"
27 #include "dc_dmub_srv.h"
28 #include "../dmub/dmub_srv.h"
29 #include "dm_helpers.h"
30
31 #define CTX dc_dmub_srv->ctx
32 #define DC_LOGGER CTX->logger
33
dc_dmub_srv_construct(struct dc_dmub_srv * dc_srv,struct dc * dc,struct dmub_srv * dmub)34 static void dc_dmub_srv_construct(struct dc_dmub_srv *dc_srv, struct dc *dc,
35 struct dmub_srv *dmub)
36 {
37 dc_srv->dmub = dmub;
38 dc_srv->ctx = dc->ctx;
39 }
40
dc_dmub_srv_create(struct dc * dc,struct dmub_srv * dmub)41 struct dc_dmub_srv *dc_dmub_srv_create(struct dc *dc, struct dmub_srv *dmub)
42 {
43 struct dc_dmub_srv *dc_srv =
44 kzalloc(sizeof(struct dc_dmub_srv), GFP_KERNEL);
45
46 if (dc_srv == NULL) {
47 BREAK_TO_DEBUGGER();
48 return NULL;
49 }
50
51 dc_dmub_srv_construct(dc_srv, dc, dmub);
52
53 return dc_srv;
54 }
55
dc_dmub_srv_destroy(struct dc_dmub_srv ** dmub_srv)56 void dc_dmub_srv_destroy(struct dc_dmub_srv **dmub_srv)
57 {
58 if (*dmub_srv) {
59 kfree(*dmub_srv);
60 *dmub_srv = NULL;
61 }
62 }
63
dc_dmub_srv_cmd_queue(struct dc_dmub_srv * dc_dmub_srv,union dmub_rb_cmd * cmd)64 void dc_dmub_srv_cmd_queue(struct dc_dmub_srv *dc_dmub_srv,
65 union dmub_rb_cmd *cmd)
66 {
67 struct dmub_srv *dmub = dc_dmub_srv->dmub;
68 struct dc_context *dc_ctx = dc_dmub_srv->ctx;
69 enum dmub_status status;
70
71 status = dmub_srv_cmd_queue(dmub, cmd);
72 if (status == DMUB_STATUS_OK)
73 return;
74
75 if (status != DMUB_STATUS_QUEUE_FULL)
76 goto error;
77
78 /* Execute and wait for queue to become empty again. */
79 dc_dmub_srv_cmd_execute(dc_dmub_srv);
80 dc_dmub_srv_wait_idle(dc_dmub_srv);
81
82 /* Requeue the command. */
83 status = dmub_srv_cmd_queue(dmub, cmd);
84 if (status == DMUB_STATUS_OK)
85 return;
86
87 error:
88 DC_ERROR("Error queuing DMUB command: status=%d\n", status);
89 dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
90 }
91
dc_dmub_srv_cmd_execute(struct dc_dmub_srv * dc_dmub_srv)92 void dc_dmub_srv_cmd_execute(struct dc_dmub_srv *dc_dmub_srv)
93 {
94 struct dmub_srv *dmub = dc_dmub_srv->dmub;
95 struct dc_context *dc_ctx = dc_dmub_srv->ctx;
96 enum dmub_status status;
97
98 status = dmub_srv_cmd_execute(dmub);
99 if (status != DMUB_STATUS_OK) {
100 DC_ERROR("Error starting DMUB execution: status=%d\n", status);
101 dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
102 }
103 }
104
dc_dmub_srv_wait_idle(struct dc_dmub_srv * dc_dmub_srv)105 void dc_dmub_srv_wait_idle(struct dc_dmub_srv *dc_dmub_srv)
106 {
107 struct dmub_srv *dmub = dc_dmub_srv->dmub;
108 struct dc_context *dc_ctx = dc_dmub_srv->ctx;
109 enum dmub_status status;
110
111 status = dmub_srv_wait_for_idle(dmub, 100000);
112 if (status != DMUB_STATUS_OK) {
113 DC_ERROR("Error waiting for DMUB idle: status=%d\n", status);
114 dc_dmub_srv_log_diagnostic_data(dc_dmub_srv);
115 }
116 }
117
dc_dmub_srv_clear_inbox0_ack(struct dc_dmub_srv * dmub_srv)118 void dc_dmub_srv_clear_inbox0_ack(struct dc_dmub_srv *dmub_srv)
119 {
120 struct dmub_srv *dmub = dmub_srv->dmub;
121 struct dc_context *dc_ctx = dmub_srv->ctx;
122 enum dmub_status status = DMUB_STATUS_OK;
123
124 status = dmub_srv_clear_inbox0_ack(dmub);
125 if (status != DMUB_STATUS_OK) {
126 DC_ERROR("Error clearing INBOX0 ack: status=%d\n", status);
127 dc_dmub_srv_log_diagnostic_data(dmub_srv);
128 }
129 }
130
dc_dmub_srv_wait_for_inbox0_ack(struct dc_dmub_srv * dmub_srv)131 void dc_dmub_srv_wait_for_inbox0_ack(struct dc_dmub_srv *dmub_srv)
132 {
133 struct dmub_srv *dmub = dmub_srv->dmub;
134 struct dc_context *dc_ctx = dmub_srv->ctx;
135 enum dmub_status status = DMUB_STATUS_OK;
136
137 status = dmub_srv_wait_for_inbox0_ack(dmub, 100000);
138 if (status != DMUB_STATUS_OK) {
139 DC_ERROR("Error waiting for INBOX0 HW Lock Ack\n");
140 dc_dmub_srv_log_diagnostic_data(dmub_srv);
141 }
142 }
143
dc_dmub_srv_send_inbox0_cmd(struct dc_dmub_srv * dmub_srv,union dmub_inbox0_data_register data)144 void dc_dmub_srv_send_inbox0_cmd(struct dc_dmub_srv *dmub_srv,
145 union dmub_inbox0_data_register data)
146 {
147 struct dmub_srv *dmub = dmub_srv->dmub;
148 struct dc_context *dc_ctx = dmub_srv->ctx;
149 enum dmub_status status = DMUB_STATUS_OK;
150
151 status = dmub_srv_send_inbox0_cmd(dmub, data);
152 if (status != DMUB_STATUS_OK) {
153 DC_ERROR("Error sending INBOX0 cmd\n");
154 dc_dmub_srv_log_diagnostic_data(dmub_srv);
155 }
156 }
157
dc_dmub_srv_cmd_with_reply_data(struct dc_dmub_srv * dc_dmub_srv,union dmub_rb_cmd * cmd)158 bool dc_dmub_srv_cmd_with_reply_data(struct dc_dmub_srv *dc_dmub_srv, union dmub_rb_cmd *cmd)
159 {
160 struct dmub_srv *dmub;
161 enum dmub_status status;
162
163 if (!dc_dmub_srv || !dc_dmub_srv->dmub)
164 return false;
165
166 dmub = dc_dmub_srv->dmub;
167
168 status = dmub_srv_cmd_with_reply_data(dmub, cmd);
169 if (status != DMUB_STATUS_OK) {
170 DC_LOG_DEBUG("No reply for DMUB command: status=%d\n", status);
171 return false;
172 }
173
174 return true;
175 }
176
dc_dmub_srv_wait_phy_init(struct dc_dmub_srv * dc_dmub_srv)177 void dc_dmub_srv_wait_phy_init(struct dc_dmub_srv *dc_dmub_srv)
178 {
179 struct dmub_srv *dmub = dc_dmub_srv->dmub;
180 struct dc_context *dc_ctx = dc_dmub_srv->ctx;
181 enum dmub_status status;
182
183 for (;;) {
184 /* Wait up to a second for PHY init. */
185 status = dmub_srv_wait_for_phy_init(dmub, 1000000);
186 if (status == DMUB_STATUS_OK)
187 /* Initialization OK */
188 break;
189
190 DC_ERROR("DMCUB PHY init failed: status=%d\n", status);
191 ASSERT(0);
192
193 if (status != DMUB_STATUS_TIMEOUT)
194 /*
195 * Server likely initialized or we don't have
196 * DMCUB HW support - this won't end.
197 */
198 break;
199
200 /* Continue spinning so we don't hang the ASIC. */
201 }
202 }
203
dc_dmub_srv_notify_stream_mask(struct dc_dmub_srv * dc_dmub_srv,unsigned int stream_mask)204 bool dc_dmub_srv_notify_stream_mask(struct dc_dmub_srv *dc_dmub_srv,
205 unsigned int stream_mask)
206 {
207 struct dmub_srv *dmub;
208 const uint32_t timeout = 30;
209
210 if (!dc_dmub_srv || !dc_dmub_srv->dmub)
211 return false;
212
213 dmub = dc_dmub_srv->dmub;
214
215 return dmub_srv_send_gpint_command(
216 dmub, DMUB_GPINT__IDLE_OPT_NOTIFY_STREAM_MASK,
217 stream_mask, timeout) == DMUB_STATUS_OK;
218 }
219
dc_dmub_srv_is_restore_required(struct dc_dmub_srv * dc_dmub_srv)220 bool dc_dmub_srv_is_restore_required(struct dc_dmub_srv *dc_dmub_srv)
221 {
222 struct dmub_srv *dmub;
223 struct dc_context *dc_ctx;
224 union dmub_fw_boot_status boot_status;
225 enum dmub_status status;
226
227 if (!dc_dmub_srv || !dc_dmub_srv->dmub)
228 return false;
229
230 dmub = dc_dmub_srv->dmub;
231 dc_ctx = dc_dmub_srv->ctx;
232
233 status = dmub_srv_get_fw_boot_status(dmub, &boot_status);
234 if (status != DMUB_STATUS_OK) {
235 DC_ERROR("Error querying DMUB boot status: error=%d\n", status);
236 return false;
237 }
238
239 return boot_status.bits.restore_required;
240 }
241
dc_dmub_srv_get_dmub_outbox0_msg(const struct dc * dc,struct dmcub_trace_buf_entry * entry)242 bool dc_dmub_srv_get_dmub_outbox0_msg(const struct dc *dc, struct dmcub_trace_buf_entry *entry)
243 {
244 struct dmub_srv *dmub = dc->ctx->dmub_srv->dmub;
245 return dmub_srv_get_outbox0_msg(dmub, entry);
246 }
247
dc_dmub_trace_event_control(struct dc * dc,bool enable)248 void dc_dmub_trace_event_control(struct dc *dc, bool enable)
249 {
250 dm_helpers_dmub_outbox_interrupt_control(dc->ctx, enable);
251 }
252
dc_dmub_srv_get_diagnostic_data(struct dc_dmub_srv * dc_dmub_srv,struct dmub_diagnostic_data * diag_data)253 bool dc_dmub_srv_get_diagnostic_data(struct dc_dmub_srv *dc_dmub_srv, struct dmub_diagnostic_data *diag_data)
254 {
255 if (!dc_dmub_srv || !dc_dmub_srv->dmub || !diag_data)
256 return false;
257 return dmub_srv_get_diagnostic_data(dc_dmub_srv->dmub, diag_data);
258 }
259
dc_dmub_srv_log_diagnostic_data(struct dc_dmub_srv * dc_dmub_srv)260 void dc_dmub_srv_log_diagnostic_data(struct dc_dmub_srv *dc_dmub_srv)
261 {
262 struct dmub_diagnostic_data diag_data = {0};
263
264 if (!dc_dmub_srv || !dc_dmub_srv->dmub) {
265 DC_LOG_ERROR("%s: invalid parameters.", __func__);
266 return;
267 }
268
269 if (!dc_dmub_srv_get_diagnostic_data(dc_dmub_srv, &diag_data)) {
270 DC_LOG_ERROR("%s: dc_dmub_srv_get_diagnostic_data failed.", __func__);
271 return;
272 }
273
274 DC_LOG_DEBUG(
275 "DMCUB STATE\n"
276 " dmcub_version : %08x\n"
277 " scratch [0] : %08x\n"
278 " scratch [1] : %08x\n"
279 " scratch [2] : %08x\n"
280 " scratch [3] : %08x\n"
281 " scratch [4] : %08x\n"
282 " scratch [5] : %08x\n"
283 " scratch [6] : %08x\n"
284 " scratch [7] : %08x\n"
285 " scratch [8] : %08x\n"
286 " scratch [9] : %08x\n"
287 " scratch [10] : %08x\n"
288 " scratch [11] : %08x\n"
289 " scratch [12] : %08x\n"
290 " scratch [13] : %08x\n"
291 " scratch [14] : %08x\n"
292 " scratch [15] : %08x\n"
293 " pc : %08x\n"
294 " unk_fault_addr : %08x\n"
295 " inst_fault_addr : %08x\n"
296 " data_fault_addr : %08x\n"
297 " inbox1_rptr : %08x\n"
298 " inbox1_wptr : %08x\n"
299 " inbox1_size : %08x\n"
300 " inbox0_rptr : %08x\n"
301 " inbox0_wptr : %08x\n"
302 " inbox0_size : %08x\n"
303 " is_enabled : %d\n"
304 " is_soft_reset : %d\n"
305 " is_secure_reset : %d\n"
306 " is_traceport_en : %d\n"
307 " is_cw0_en : %d\n"
308 " is_cw6_en : %d\n",
309 diag_data.dmcub_version,
310 diag_data.scratch[0],
311 diag_data.scratch[1],
312 diag_data.scratch[2],
313 diag_data.scratch[3],
314 diag_data.scratch[4],
315 diag_data.scratch[5],
316 diag_data.scratch[6],
317 diag_data.scratch[7],
318 diag_data.scratch[8],
319 diag_data.scratch[9],
320 diag_data.scratch[10],
321 diag_data.scratch[11],
322 diag_data.scratch[12],
323 diag_data.scratch[13],
324 diag_data.scratch[14],
325 diag_data.scratch[15],
326 diag_data.pc,
327 diag_data.undefined_address_fault_addr,
328 diag_data.inst_fetch_fault_addr,
329 diag_data.data_write_fault_addr,
330 diag_data.inbox1_rptr,
331 diag_data.inbox1_wptr,
332 diag_data.inbox1_size,
333 diag_data.inbox0_rptr,
334 diag_data.inbox0_wptr,
335 diag_data.inbox0_size,
336 diag_data.is_dmcub_enabled,
337 diag_data.is_dmcub_soft_reset,
338 diag_data.is_dmcub_secure_reset,
339 diag_data.is_traceport_en,
340 diag_data.is_cw0_enabled,
341 diag_data.is_cw6_enabled);
342 }
343