2 * Copyright 2015 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.
23 #include <linux/types.h>
24 #include <linux/kernel.h>
25 #include <linux/gfp.h>
26 #include <linux/slab.h>
27 #include "amd_shared.h"
28 #include "amd_powerplay.h"
29 #include "pp_instance.h"
30 #include "power_state.h"
31 #include "eventmanager.h"
33 #define PP_CHECK(handle) \
35 if ((handle) == NULL || (handle)->pp_valid != PP_VALID) \
39 static int pp_early_init(void *handle)
44 static int pp_sw_init(void *handle)
46 struct pp_instance *pp_handle;
47 struct pp_hwmgr *hwmgr;
53 pp_handle = (struct pp_instance *)handle;
54 hwmgr = pp_handle->hwmgr;
56 if (hwmgr == NULL || hwmgr->pptable_func == NULL ||
57 hwmgr->hwmgr_func == NULL ||
58 hwmgr->pptable_func->pptable_init == NULL ||
59 hwmgr->hwmgr_func->backend_init == NULL)
62 ret = hwmgr->pptable_func->pptable_init(hwmgr);
65 ret = hwmgr->hwmgr_func->backend_init(hwmgr);
70 static int pp_sw_fini(void *handle)
72 struct pp_instance *pp_handle;
73 struct pp_hwmgr *hwmgr;
79 pp_handle = (struct pp_instance *)handle;
80 hwmgr = pp_handle->hwmgr;
82 if (hwmgr != NULL || hwmgr->hwmgr_func != NULL ||
83 hwmgr->hwmgr_func->backend_fini != NULL)
84 ret = hwmgr->hwmgr_func->backend_fini(hwmgr);
89 static int pp_hw_init(void *handle)
91 struct pp_instance *pp_handle;
92 struct pp_smumgr *smumgr;
93 struct pp_eventmgr *eventmgr;
99 pp_handle = (struct pp_instance *)handle;
100 smumgr = pp_handle->smu_mgr;
102 if (smumgr == NULL || smumgr->smumgr_funcs == NULL ||
103 smumgr->smumgr_funcs->smu_init == NULL ||
104 smumgr->smumgr_funcs->start_smu == NULL)
107 ret = smumgr->smumgr_funcs->smu_init(smumgr);
109 printk(KERN_ERR "[ powerplay ] smc initialization failed\n");
113 ret = smumgr->smumgr_funcs->start_smu(smumgr);
115 printk(KERN_ERR "[ powerplay ] smc start failed\n");
116 smumgr->smumgr_funcs->smu_fini(smumgr);
120 hw_init_power_state_table(pp_handle->hwmgr);
121 eventmgr = pp_handle->eventmgr;
123 if (eventmgr == NULL || eventmgr->pp_eventmgr_init == NULL)
126 ret = eventmgr->pp_eventmgr_init(eventmgr);
130 static int pp_hw_fini(void *handle)
132 struct pp_instance *pp_handle;
133 struct pp_smumgr *smumgr;
134 struct pp_eventmgr *eventmgr;
139 pp_handle = (struct pp_instance *)handle;
140 eventmgr = pp_handle->eventmgr;
142 if (eventmgr != NULL || eventmgr->pp_eventmgr_fini != NULL)
143 eventmgr->pp_eventmgr_fini(eventmgr);
145 smumgr = pp_handle->smu_mgr;
147 if (smumgr != NULL || smumgr->smumgr_funcs != NULL ||
148 smumgr->smumgr_funcs->smu_fini != NULL)
149 smumgr->smumgr_funcs->smu_fini(smumgr);
154 static bool pp_is_idle(void *handle)
159 static int pp_wait_for_idle(void *handle)
164 static int pp_sw_reset(void *handle)
169 static void pp_print_status(void *handle)
174 static int pp_set_clockgating_state(void *handle,
175 enum amd_clockgating_state state)
180 static int pp_set_powergating_state(void *handle,
181 enum amd_powergating_state state)
186 static int pp_suspend(void *handle)
188 struct pp_instance *pp_handle;
189 struct pp_eventmgr *eventmgr;
190 struct pem_event_data event_data = { {0} };
195 pp_handle = (struct pp_instance *)handle;
196 eventmgr = pp_handle->eventmgr;
197 pem_handle_event(eventmgr, AMD_PP_EVENT_SUSPEND, &event_data);
201 static int pp_resume(void *handle)
203 struct pp_instance *pp_handle;
204 struct pp_eventmgr *eventmgr;
205 struct pem_event_data event_data = { {0} };
206 struct pp_smumgr *smumgr;
212 pp_handle = (struct pp_instance *)handle;
213 smumgr = pp_handle->smu_mgr;
215 if (smumgr == NULL || smumgr->smumgr_funcs == NULL ||
216 smumgr->smumgr_funcs->start_smu == NULL)
219 ret = smumgr->smumgr_funcs->start_smu(smumgr);
221 printk(KERN_ERR "[ powerplay ] smc start failed\n");
222 smumgr->smumgr_funcs->smu_fini(smumgr);
226 eventmgr = pp_handle->eventmgr;
227 pem_handle_event(eventmgr, AMD_PP_EVENT_RESUME, &event_data);
232 const struct amd_ip_funcs pp_ip_funcs = {
233 .early_init = pp_early_init,
235 .sw_init = pp_sw_init,
236 .sw_fini = pp_sw_fini,
237 .hw_init = pp_hw_init,
238 .hw_fini = pp_hw_fini,
239 .suspend = pp_suspend,
241 .is_idle = pp_is_idle,
242 .wait_for_idle = pp_wait_for_idle,
243 .soft_reset = pp_sw_reset,
244 .print_status = pp_print_status,
245 .set_clockgating_state = pp_set_clockgating_state,
246 .set_powergating_state = pp_set_powergating_state,
249 static int pp_dpm_load_fw(void *handle)
254 static int pp_dpm_fw_loading_complete(void *handle)
259 static int pp_dpm_force_performance_level(void *handle,
260 enum amd_dpm_forced_level level)
262 struct pp_instance *pp_handle;
263 struct pp_hwmgr *hwmgr;
268 pp_handle = (struct pp_instance *)handle;
270 hwmgr = pp_handle->hwmgr;
272 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
273 hwmgr->hwmgr_func->force_dpm_level == NULL)
276 hwmgr->hwmgr_func->force_dpm_level(hwmgr, level);
281 static enum amd_dpm_forced_level pp_dpm_get_performance_level(
284 struct pp_hwmgr *hwmgr;
289 hwmgr = ((struct pp_instance *)handle)->hwmgr;
294 return (((struct pp_instance *)handle)->hwmgr->dpm_level);
297 static int pp_dpm_get_sclk(void *handle, bool low)
299 struct pp_hwmgr *hwmgr;
304 hwmgr = ((struct pp_instance *)handle)->hwmgr;
306 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
307 hwmgr->hwmgr_func->get_sclk == NULL)
310 return hwmgr->hwmgr_func->get_sclk(hwmgr, low);
313 static int pp_dpm_get_mclk(void *handle, bool low)
315 struct pp_hwmgr *hwmgr;
320 hwmgr = ((struct pp_instance *)handle)->hwmgr;
322 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
323 hwmgr->hwmgr_func->get_mclk == NULL)
326 return hwmgr->hwmgr_func->get_mclk(hwmgr, low);
329 static int pp_dpm_powergate_vce(void *handle, bool gate)
331 struct pp_hwmgr *hwmgr;
336 hwmgr = ((struct pp_instance *)handle)->hwmgr;
338 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
339 hwmgr->hwmgr_func->powergate_vce == NULL)
342 return hwmgr->hwmgr_func->powergate_vce(hwmgr, gate);
345 static int pp_dpm_powergate_uvd(void *handle, bool gate)
347 struct pp_hwmgr *hwmgr;
352 hwmgr = ((struct pp_instance *)handle)->hwmgr;
354 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
355 hwmgr->hwmgr_func->powergate_uvd == NULL)
358 return hwmgr->hwmgr_func->powergate_uvd(hwmgr, gate);
361 static enum PP_StateUILabel power_state_convert(enum amd_pm_state_type state)
364 case POWER_STATE_TYPE_BATTERY:
365 return PP_StateUILabel_Battery;
366 case POWER_STATE_TYPE_BALANCED:
367 return PP_StateUILabel_Balanced;
368 case POWER_STATE_TYPE_PERFORMANCE:
369 return PP_StateUILabel_Performance;
371 return PP_StateUILabel_None;
375 int pp_dpm_dispatch_tasks(void *handle, enum amd_pp_event event_id, void *input, void *output)
378 struct pp_instance *pp_handle;
379 struct pem_event_data data = { {0} };
381 pp_handle = (struct pp_instance *)handle;
383 if (pp_handle == NULL)
387 case AMD_PP_EVENT_DISPLAY_CONFIG_CHANGE:
388 ret = pem_handle_event(pp_handle->eventmgr, event_id, &data);
390 case AMD_PP_EVENT_ENABLE_USER_STATE:
392 enum amd_pm_state_type ps;
396 ps = *(unsigned long *)input;
398 data.requested_ui_label = power_state_convert(ps);
399 ret = pem_handle_event(pp_handle->eventmgr, event_id, &data);
408 enum amd_pm_state_type pp_dpm_get_current_power_state(void *handle)
410 struct pp_hwmgr *hwmgr;
411 struct pp_power_state *state;
416 hwmgr = ((struct pp_instance *)handle)->hwmgr;
418 if (hwmgr == NULL || hwmgr->current_ps == NULL)
421 state = hwmgr->current_ps;
423 switch (state->classification.ui_label) {
424 case PP_StateUILabel_Battery:
425 return POWER_STATE_TYPE_BATTERY;
426 case PP_StateUILabel_Balanced:
427 return POWER_STATE_TYPE_BALANCED;
428 case PP_StateUILabel_Performance:
429 return POWER_STATE_TYPE_PERFORMANCE;
431 return POWER_STATE_TYPE_DEFAULT;
436 pp_debugfs_print_current_performance_level(void *handle,
439 struct pp_hwmgr *hwmgr;
444 hwmgr = ((struct pp_instance *)handle)->hwmgr;
446 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
447 hwmgr->hwmgr_func->print_current_perforce_level == NULL)
450 hwmgr->hwmgr_func->print_current_perforce_level(hwmgr, m);
453 static int pp_dpm_set_fan_control_mode(void *handle, uint32_t mode)
455 struct pp_hwmgr *hwmgr;
460 hwmgr = ((struct pp_instance *)handle)->hwmgr;
462 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
463 hwmgr->hwmgr_func->set_fan_control_mode == NULL)
466 return hwmgr->hwmgr_func->set_fan_control_mode(hwmgr, mode);
469 static int pp_dpm_get_fan_control_mode(void *handle)
471 struct pp_hwmgr *hwmgr;
476 hwmgr = ((struct pp_instance *)handle)->hwmgr;
478 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
479 hwmgr->hwmgr_func->get_fan_control_mode == NULL)
482 return hwmgr->hwmgr_func->get_fan_control_mode(hwmgr);
485 static int pp_dpm_set_fan_speed_percent(void *handle, uint32_t percent)
487 struct pp_hwmgr *hwmgr;
492 hwmgr = ((struct pp_instance *)handle)->hwmgr;
494 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
495 hwmgr->hwmgr_func->set_fan_speed_percent == NULL)
498 return hwmgr->hwmgr_func->set_fan_speed_percent(hwmgr, percent);
501 static int pp_dpm_get_fan_speed_percent(void *handle, uint32_t *speed)
503 struct pp_hwmgr *hwmgr;
508 hwmgr = ((struct pp_instance *)handle)->hwmgr;
510 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
511 hwmgr->hwmgr_func->get_fan_speed_percent == NULL)
514 return hwmgr->hwmgr_func->get_fan_speed_percent(hwmgr, speed);
517 static int pp_dpm_get_temperature(void *handle)
519 struct pp_hwmgr *hwmgr;
524 hwmgr = ((struct pp_instance *)handle)->hwmgr;
526 if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
527 hwmgr->hwmgr_func->get_temperature == NULL)
530 return hwmgr->hwmgr_func->get_temperature(hwmgr);
533 const struct amd_powerplay_funcs pp_dpm_funcs = {
534 .get_temperature = pp_dpm_get_temperature,
535 .load_firmware = pp_dpm_load_fw,
536 .wait_for_fw_loading_complete = pp_dpm_fw_loading_complete,
537 .force_performance_level = pp_dpm_force_performance_level,
538 .get_performance_level = pp_dpm_get_performance_level,
539 .get_current_power_state = pp_dpm_get_current_power_state,
540 .get_sclk = pp_dpm_get_sclk,
541 .get_mclk = pp_dpm_get_mclk,
542 .powergate_vce = pp_dpm_powergate_vce,
543 .powergate_uvd = pp_dpm_powergate_uvd,
544 .dispatch_tasks = pp_dpm_dispatch_tasks,
545 .print_current_performance_level = pp_debugfs_print_current_performance_level,
546 .set_fan_control_mode = pp_dpm_set_fan_control_mode,
547 .get_fan_control_mode = pp_dpm_get_fan_control_mode,
548 .set_fan_speed_percent = pp_dpm_set_fan_speed_percent,
549 .get_fan_speed_percent = pp_dpm_get_fan_speed_percent,
552 static int amd_pp_instance_init(struct amd_pp_init *pp_init,
553 struct amd_powerplay *amd_pp)
556 struct pp_instance *handle;
558 handle = kzalloc(sizeof(struct pp_instance), GFP_KERNEL);
562 handle->pp_valid = PP_VALID;
564 ret = smum_init(pp_init, handle);
568 ret = hwmgr_init(pp_init, handle);
572 ret = eventmgr_init(handle);
576 amd_pp->pp_handle = handle;
580 hwmgr_fini(handle->hwmgr);
582 smum_fini(handle->smu_mgr);
588 static int amd_pp_instance_fini(void *handle)
590 struct pp_instance *instance = (struct pp_instance *)handle;
592 if (instance == NULL)
595 eventmgr_fini(instance->eventmgr);
597 hwmgr_fini(instance->hwmgr);
599 smum_fini(instance->smu_mgr);
605 int amd_powerplay_init(struct amd_pp_init *pp_init,
606 struct amd_powerplay *amd_pp)
610 if (pp_init == NULL || amd_pp == NULL)
613 ret = amd_pp_instance_init(pp_init, amd_pp);
618 amd_pp->ip_funcs = &pp_ip_funcs;
619 amd_pp->pp_funcs = &pp_dpm_funcs;
624 int amd_powerplay_fini(void *handle)
626 amd_pp_instance_fini(handle);
631 /* export this function to DAL */
633 int amd_powerplay_display_configuration_change(void *handle, const void *input)
635 struct pp_hwmgr *hwmgr;
636 const struct amd_pp_display_configuration *display_config = input;
638 PP_CHECK((struct pp_instance *)handle);
640 hwmgr = ((struct pp_instance *)handle)->hwmgr;
642 phm_store_dal_configuration_data(hwmgr, display_config);
647 int amd_powerplay_get_display_power_level(void *handle,
648 struct amd_pp_dal_clock_info *output)
650 struct pp_hwmgr *hwmgr;
652 PP_CHECK((struct pp_instance *)handle);
657 hwmgr = ((struct pp_instance *)handle)->hwmgr;
659 return phm_get_dal_power_level(hwmgr, output);