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1// SPDX-License-Identifier: MIT
2//
3// Copyright 2024 Advanced Micro Devices, Inc.
4
5#include "dc.h"
6#include "dc_dmub_srv.h"
7#include "dmub/dmub_srv.h"
8#include "core_types.h"
9#include "dmub_replay.h"
10
11#define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */
12
13#define MAX_PIPES 6
14
15#define GPINT_RETRY_NUM 20
16
17static const uint8_t DP_SINK_DEVICE_STR_ID_1[] = {7, 1, 8, 7, 3};
18static const uint8_t DP_SINK_DEVICE_STR_ID_2[] = {7, 1, 8, 7, 5};
19
20/*
21 * Get Replay state from firmware.
22 */
23static void dmub_replay_get_state(struct dmub_replay *dmub, enum replay_state *state, uint8_t panel_inst)
24{
25 uint32_t retry_count = 0;
26
27 do {
28 // Send gpint command and wait for ack
29 if (!dc_wake_and_execute_gpint(dmub->ctx, DMUB_GPINT__GET_REPLAY_STATE, panel_inst,
30 (uint32_t *)state, DM_DMUB_WAIT_TYPE_WAIT_WITH_REPLY)) {
31 // Return invalid state when GPINT times out
32 *state = REPLAY_STATE_INVALID;
33 }
34 } while (++retry_count <= 1000 && *state == REPLAY_STATE_INVALID);
35
36 // Assert if max retry hit
37 if (retry_count >= 1000 && *state == REPLAY_STATE_INVALID) {
38 ASSERT(0);
39 /* To-do: Add retry fail log */
40 }
41}
42
43/*
44 * Enable/Disable Replay.
45 */
46static void dmub_replay_enable(struct dmub_replay *dmub, bool enable, bool wait, uint8_t panel_inst)
47{
48 union dmub_rb_cmd cmd;
49 struct dc_context *dc = dmub->ctx;
50 uint32_t retry_count;
51 enum replay_state state = REPLAY_STATE_0;
52
53 memset(&cmd, 0, sizeof(cmd));
54 cmd.replay_enable.header.type = DMUB_CMD__REPLAY;
55 cmd.replay_enable.data.panel_inst = panel_inst;
56
57 cmd.replay_enable.header.sub_type = DMUB_CMD__REPLAY_ENABLE;
58 if (enable)
59 cmd.replay_enable.data.enable = REPLAY_ENABLE;
60 else
61 cmd.replay_enable.data.enable = REPLAY_DISABLE;
62
63 cmd.replay_enable.header.payload_bytes = sizeof(struct dmub_rb_cmd_replay_enable_data);
64
65 dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
66
67 /* Below loops 1000 x 500us = 500 ms.
68 * Exit REPLAY may need to wait 1-2 frames to power up. Timeout after at
69 * least a few frames. Should never hit the max retry assert below.
70 */
71 if (wait) {
72 for (retry_count = 0; retry_count <= 1000; retry_count++) {
73 dmub_replay_get_state(dmub, &state, panel_inst);
74
75 if (enable) {
76 if (state != REPLAY_STATE_0)
77 break;
78 } else {
79 if (state == REPLAY_STATE_0)
80 break;
81 }
82
83 /* must *not* be fsleep - this can be called from high irq levels */
84 udelay(500);
85 }
86
87 /* assert if max retry hit */
88 if (retry_count >= 1000)
89 ASSERT(0);
90 }
91}
92
93/*
94 * Set REPLAY power optimization flags.
95 */
96static void dmub_replay_set_power_opt(struct dmub_replay *dmub, unsigned int power_opt, uint8_t panel_inst)
97{
98 union dmub_rb_cmd cmd;
99 struct dc_context *dc = dmub->ctx;
100
101 memset(&cmd, 0, sizeof(cmd));
102 cmd.replay_set_power_opt.header.type = DMUB_CMD__REPLAY;
103 cmd.replay_set_power_opt.header.sub_type = DMUB_CMD__SET_REPLAY_POWER_OPT;
104 cmd.replay_set_power_opt.header.payload_bytes = sizeof(struct dmub_cmd_replay_set_power_opt_data);
105 cmd.replay_set_power_opt.replay_set_power_opt_data.power_opt = power_opt;
106 cmd.replay_set_power_opt.replay_set_power_opt_data.panel_inst = panel_inst;
107
108 dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
109}
110
111/*
112 * Setup Replay by programming phy registers and sending replay hw context values to firmware.
113 */
114static bool dmub_replay_copy_settings(struct dmub_replay *dmub,
115 struct dc_link *link,
116 struct replay_context *replay_context,
117 uint8_t panel_inst)
118{
119 union dmub_rb_cmd cmd;
120 struct dc_context *dc = dmub->ctx;
121 struct dmub_cmd_replay_copy_settings_data *copy_settings_data
122 = &cmd.replay_copy_settings.replay_copy_settings_data;
123 struct pipe_ctx *pipe_ctx = NULL;
124 struct resource_context *res_ctx = &link->ctx->dc->current_state->res_ctx;
125 int i = 0;
126
127 for (i = 0; i < MAX_PIPES; i++) {
128 if (res_ctx &&
129 res_ctx->pipe_ctx[i].stream &&
130 res_ctx->pipe_ctx[i].stream->link &&
131 res_ctx->pipe_ctx[i].stream->link == link &&
132 res_ctx->pipe_ctx[i].stream->link->connector_signal == SIGNAL_TYPE_EDP) {
133 pipe_ctx = &res_ctx->pipe_ctx[i];
134 //TODO: refactor for multi edp support
135 break;
136 }
137 }
138
139 if (!pipe_ctx)
140 return false;
141
142 memset(&cmd, 0, sizeof(cmd));
143 cmd.replay_copy_settings.header.type = DMUB_CMD__REPLAY;
144 cmd.replay_copy_settings.header.sub_type = DMUB_CMD__REPLAY_COPY_SETTINGS;
145 cmd.replay_copy_settings.header.payload_bytes = sizeof(struct dmub_cmd_replay_copy_settings_data);
146
147 // HW insts
148 copy_settings_data->aux_inst = replay_context->aux_inst;
149 copy_settings_data->digbe_inst = replay_context->digbe_inst;
150 copy_settings_data->digfe_inst = replay_context->digfe_inst;
151
152 if (pipe_ctx->plane_res.dpp)
153 copy_settings_data->dpp_inst = pipe_ctx->plane_res.dpp->inst;
154 else
155 copy_settings_data->dpp_inst = 0;
156 if (pipe_ctx->stream_res.tg)
157 copy_settings_data->otg_inst = pipe_ctx->stream_res.tg->inst;
158 else
159 copy_settings_data->otg_inst = 0;
160
161 copy_settings_data->dpphy_inst = link->link_enc->transmitter;
162
163 // Misc
164 copy_settings_data->line_time_in_ns = replay_context->line_time_in_ns;
165 copy_settings_data->panel_inst = panel_inst;
166 copy_settings_data->debug.u32All = link->replay_settings.config.debug_flags;
167 copy_settings_data->pixel_deviation_per_line = link->dpcd_caps.pr_info.pixel_deviation_per_line;
168 copy_settings_data->max_deviation_line = link->dpcd_caps.pr_info.max_deviation_line;
169 copy_settings_data->smu_optimizations_en = link->replay_settings.replay_smu_opt_enable;
170 copy_settings_data->replay_timing_sync_supported = link->replay_settings.config.replay_timing_sync_supported;
171
172 copy_settings_data->debug.bitfields.enable_ips_visual_confirm = dc->dc->debug.enable_ips_visual_confirm;
173
174 copy_settings_data->flags.u32All = 0;
175 copy_settings_data->flags.bitfields.fec_enable_status = (link->fec_state == dc_link_fec_enabled);
176 copy_settings_data->flags.bitfields.dsc_enable_status = (pipe_ctx->stream->timing.flags.DSC == 1);
177 // WA for PSRSU+DSC on specific TCON, if DSC is enabled, force PSRSU as ffu mode(full frame update)
178 if (((link->dpcd_caps.fec_cap.bits.FEC_CAPABLE &&
179 !link->dc->debug.disable_fec) &&
180 (link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_SUPPORT &&
181 !link->panel_config.dsc.disable_dsc_edp &&
182 link->dc->caps.edp_dsc_support)) &&
183 link->dpcd_caps.sink_dev_id == DP_DEVICE_ID_38EC11 &&
184 (!memcmp(link->dpcd_caps.sink_dev_id_str, DP_SINK_DEVICE_STR_ID_1,
185 sizeof(DP_SINK_DEVICE_STR_ID_1)) ||
186 !memcmp(link->dpcd_caps.sink_dev_id_str, DP_SINK_DEVICE_STR_ID_2,
187 sizeof(DP_SINK_DEVICE_STR_ID_2))))
188 copy_settings_data->flags.bitfields.force_wakeup_by_tps3 = 1;
189 else
190 copy_settings_data->flags.bitfields.force_wakeup_by_tps3 = 0;
191
192 dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
193
194 return true;
195}
196
197/*
198 * Set coasting vtotal.
199 */
200static void dmub_replay_set_coasting_vtotal(struct dmub_replay *dmub,
201 uint32_t coasting_vtotal,
202 uint8_t panel_inst)
203{
204 union dmub_rb_cmd cmd;
205 struct dc_context *dc = dmub->ctx;
206 struct dmub_rb_cmd_replay_set_coasting_vtotal *pCmd = NULL;
207
208 pCmd = &(cmd.replay_set_coasting_vtotal);
209
210 memset(&cmd, 0, sizeof(cmd));
211 pCmd->header.type = DMUB_CMD__REPLAY;
212 pCmd->header.sub_type = DMUB_CMD__REPLAY_SET_COASTING_VTOTAL;
213 pCmd->header.payload_bytes = sizeof(struct dmub_cmd_replay_set_coasting_vtotal_data);
214 pCmd->replay_set_coasting_vtotal_data.coasting_vtotal = (coasting_vtotal & 0xFFFF);
215 pCmd->replay_set_coasting_vtotal_data.coasting_vtotal_high = (coasting_vtotal & 0xFFFF0000) >> 16;
216
217 dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
218}
219
220/*
221 * Get Replay residency from firmware.
222 */
223static void dmub_replay_residency(struct dmub_replay *dmub, uint8_t panel_inst,
224 uint32_t *residency, const bool is_start, enum pr_residency_mode mode)
225{
226 uint16_t param = (uint16_t)(panel_inst << 8);
227 uint32_t i = 0;
228
229 switch (mode) {
230 case PR_RESIDENCY_MODE_PHY:
231 param |= REPLAY_RESIDENCY_FIELD_MODE_PHY;
232 break;
233 case PR_RESIDENCY_MODE_ALPM:
234 param |= REPLAY_RESIDENCY_FIELD_MODE_ALPM;
235 break;
236 case PR_RESIDENCY_MODE_IPS2:
237 param |= REPLAY_RESIDENCY_REVISION_1;
238 param |= REPLAY_RESIDENCY_FIELD_MODE2_IPS;
239 break;
240 case PR_RESIDENCY_MODE_FRAME_CNT:
241 param |= REPLAY_RESIDENCY_REVISION_1;
242 param |= REPLAY_RESIDENCY_FIELD_MODE2_FRAME_CNT;
243 break;
244 case PR_RESIDENCY_MODE_ENABLEMENT_PERIOD:
245 param |= REPLAY_RESIDENCY_REVISION_1;
246 param |= REPLAY_RESIDENCY_FIELD_MODE2_EN_PERIOD;
247 break;
248 default:
249 break;
250 }
251
252 if (is_start)
253 param |= REPLAY_RESIDENCY_ENABLE;
254
255 for (i = 0; i < GPINT_RETRY_NUM; i++) {
256 // Send gpint command and wait for ack
257 if (dc_wake_and_execute_gpint(dmub->ctx, DMUB_GPINT__REPLAY_RESIDENCY, param,
258 residency, DM_DMUB_WAIT_TYPE_WAIT_WITH_REPLY))
259 return;
260
261 udelay(100);
262 }
263
264 // it means gpint retry many times
265 *residency = 0;
266}
267
268/*
269 * Set REPLAY power optimization flags and coasting vtotal.
270 */
271static void dmub_replay_set_power_opt_and_coasting_vtotal(struct dmub_replay *dmub,
272 unsigned int power_opt, uint8_t panel_inst, uint32_t coasting_vtotal)
273{
274 union dmub_rb_cmd cmd;
275 struct dc_context *dc = dmub->ctx;
276 struct dmub_rb_cmd_replay_set_power_opt_and_coasting_vtotal *pCmd = NULL;
277
278 pCmd = &(cmd.replay_set_power_opt_and_coasting_vtotal);
279
280 memset(&cmd, 0, sizeof(cmd));
281 pCmd->header.type = DMUB_CMD__REPLAY;
282 pCmd->header.sub_type = DMUB_CMD__REPLAY_SET_POWER_OPT_AND_COASTING_VTOTAL;
283 pCmd->header.payload_bytes = sizeof(struct dmub_rb_cmd_replay_set_power_opt_and_coasting_vtotal);
284 pCmd->replay_set_power_opt_data.power_opt = power_opt;
285 pCmd->replay_set_power_opt_data.panel_inst = panel_inst;
286 pCmd->replay_set_coasting_vtotal_data.coasting_vtotal = (coasting_vtotal & 0xFFFF);
287 pCmd->replay_set_coasting_vtotal_data.coasting_vtotal_high = (coasting_vtotal & 0xFFFF0000) >> 16;
288
289 dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
290}
291
292/*
293 * send Replay general cmd to DMUB.
294 */
295static void dmub_replay_send_cmd(struct dmub_replay *dmub,
296 enum replay_FW_Message_type msg, union dmub_replay_cmd_set *cmd_element)
297{
298 union dmub_rb_cmd cmd;
299 struct dc_context *ctx = NULL;
300
301 if (dmub == NULL || cmd_element == NULL)
302 return;
303
304 ctx = dmub->ctx;
305 if (ctx != NULL) {
306
307 if (msg != Replay_Msg_Not_Support) {
308 memset(&cmd, 0, sizeof(cmd));
309 //Header
310 cmd.replay_set_timing_sync.header.type = DMUB_CMD__REPLAY;
311 } else
312 return;
313 } else
314 return;
315
316 switch (msg) {
317 case Replay_Set_Timing_Sync_Supported:
318 //Header
319 cmd.replay_set_timing_sync.header.sub_type =
320 DMUB_CMD__REPLAY_SET_TIMING_SYNC_SUPPORTED;
321 cmd.replay_set_timing_sync.header.payload_bytes =
322 sizeof(struct dmub_rb_cmd_replay_set_timing_sync);
323 //Cmd Body
324 cmd.replay_set_timing_sync.replay_set_timing_sync_data.panel_inst =
325 cmd_element->sync_data.panel_inst;
326 cmd.replay_set_timing_sync.replay_set_timing_sync_data.timing_sync_supported =
327 cmd_element->sync_data.timing_sync_supported;
328 break;
329 case Replay_Set_Residency_Frameupdate_Timer:
330 //Header
331 cmd.replay_set_frameupdate_timer.header.sub_type =
332 DMUB_CMD__REPLAY_SET_RESIDENCY_FRAMEUPDATE_TIMER;
333 cmd.replay_set_frameupdate_timer.header.payload_bytes =
334 sizeof(struct dmub_rb_cmd_replay_set_frameupdate_timer);
335 //Cmd Body
336 cmd.replay_set_frameupdate_timer.data.panel_inst =
337 cmd_element->panel_inst;
338 cmd.replay_set_frameupdate_timer.data.enable =
339 cmd_element->timer_data.enable;
340 cmd.replay_set_frameupdate_timer.data.frameupdate_count =
341 cmd_element->timer_data.frameupdate_count;
342 break;
343 case Replay_Set_Pseudo_VTotal:
344 //Header
345 cmd.replay_set_pseudo_vtotal.header.sub_type =
346 DMUB_CMD__REPLAY_SET_PSEUDO_VTOTAL;
347 cmd.replay_set_pseudo_vtotal.header.payload_bytes =
348 sizeof(struct dmub_rb_cmd_replay_set_pseudo_vtotal);
349 //Cmd Body
350 cmd.replay_set_pseudo_vtotal.data.panel_inst =
351 cmd_element->pseudo_vtotal_data.panel_inst;
352 cmd.replay_set_pseudo_vtotal.data.vtotal =
353 cmd_element->pseudo_vtotal_data.vtotal;
354 break;
355 case Replay_Disabled_Adaptive_Sync_SDP:
356 //Header
357 cmd.replay_disabled_adaptive_sync_sdp.header.sub_type =
358 DMUB_CMD__REPLAY_DISABLED_ADAPTIVE_SYNC_SDP;
359 cmd.replay_disabled_adaptive_sync_sdp.header.payload_bytes =
360 sizeof(struct dmub_rb_cmd_replay_disabled_adaptive_sync_sdp);
361 //Cmd Body
362 cmd.replay_disabled_adaptive_sync_sdp.data.panel_inst =
363 cmd_element->disabled_adaptive_sync_sdp_data.panel_inst;
364 cmd.replay_disabled_adaptive_sync_sdp.data.force_disabled =
365 cmd_element->disabled_adaptive_sync_sdp_data.force_disabled;
366 break;
367 case Replay_Set_General_Cmd:
368 //Header
369 cmd.replay_set_general_cmd.header.sub_type =
370 DMUB_CMD__REPLAY_SET_GENERAL_CMD;
371 cmd.replay_set_general_cmd.header.payload_bytes =
372 sizeof(struct dmub_rb_cmd_replay_set_general_cmd);
373 //Cmd Body
374 cmd.replay_set_general_cmd.data.panel_inst =
375 cmd_element->set_general_cmd_data.panel_inst;
376 cmd.replay_set_general_cmd.data.subtype =
377 cmd_element->set_general_cmd_data.subtype;
378 cmd.replay_set_general_cmd.data.param1 =
379 cmd_element->set_general_cmd_data.param1;
380 cmd.replay_set_general_cmd.data.param2 =
381 cmd_element->set_general_cmd_data.param2;
382 break;
383 case Replay_Msg_Not_Support:
384 default:
385 return;
386 break;
387 }
388
389 dc_wake_and_execute_dmub_cmd(ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
390}
391
392static const struct dmub_replay_funcs replay_funcs = {
393 .replay_copy_settings = dmub_replay_copy_settings,
394 .replay_enable = dmub_replay_enable,
395 .replay_get_state = dmub_replay_get_state,
396 .replay_set_power_opt = dmub_replay_set_power_opt,
397 .replay_set_coasting_vtotal = dmub_replay_set_coasting_vtotal,
398 .replay_residency = dmub_replay_residency,
399 .replay_set_power_opt_and_coasting_vtotal = dmub_replay_set_power_opt_and_coasting_vtotal,
400 .replay_send_cmd = dmub_replay_send_cmd,
401};
402
403/*
404 * Construct Replay object.
405 */
406static void dmub_replay_construct(struct dmub_replay *replay, struct dc_context *ctx)
407{
408 replay->ctx = ctx;
409 replay->funcs = &replay_funcs;
410}
411
412/*
413 * Allocate and initialize Replay object.
414 */
415struct dmub_replay *dmub_replay_create(struct dc_context *ctx)
416{
417 struct dmub_replay *replay = kzalloc(sizeof(struct dmub_replay), GFP_KERNEL);
418
419 if (replay == NULL) {
420 BREAK_TO_DEBUGGER();
421 return NULL;
422 }
423
424 dmub_replay_construct(replay, ctx);
425
426 return replay;
427}
428
429/*
430 * Deallocate Replay object.
431 */
432void dmub_replay_destroy(struct dmub_replay **dmub)
433{
434 kfree(*dmub);
435 *dmub = NULL;
436}