1 // SPDX-License-Identifier: GPL-2.0
3 * Intel Speed Select -- Enumerate and control features
4 * Copyright (c) 2019 Intel Corporation.
9 static struct isst_platform_ops *isst_ops;
11 #define CHECK_CB(_name) \
13 if (!isst_ops || !isst_ops->_name) { \
14 fprintf(stderr, "Invalid ops\n"); \
19 int isst_set_platform_ops(int api_version)
21 switch (api_version) {
23 isst_ops = mbox_get_platform_ops();
27 isst_ops = tpmi_get_platform_ops();
39 void isst_update_platform_param(enum isst_platform_param param, int value)
41 CHECK_CB(update_platform_param);
43 isst_ops->update_platform_param(param, value);
46 int isst_get_disp_freq_multiplier(void)
48 CHECK_CB(get_disp_freq_multiplier);
49 return isst_ops->get_disp_freq_multiplier();
52 int isst_get_trl_max_levels(void)
54 CHECK_CB(get_trl_max_levels);
55 return isst_ops->get_trl_max_levels();
58 char *isst_get_trl_level_name(int level)
60 CHECK_CB(get_trl_level_name);
61 return isst_ops->get_trl_level_name(level);
64 int isst_is_punit_valid(struct isst_id *id)
66 CHECK_CB(is_punit_valid);
67 return isst_ops->is_punit_valid(id);
70 int isst_send_msr_command(unsigned int cpu, unsigned int msr, int write,
71 unsigned long long *req_resp)
73 struct isst_if_msr_cmds msr_cmds;
74 const char *pathname = "/dev/isst_interface";
75 FILE *outf = get_output_file();
78 fd = open(pathname, O_RDWR);
80 err(-1, "%s open failed", pathname);
82 msr_cmds.cmd_count = 1;
83 msr_cmds.msr_cmd[0].logical_cpu = cpu;
84 msr_cmds.msr_cmd[0].msr = msr;
85 msr_cmds.msr_cmd[0].read_write = write;
87 msr_cmds.msr_cmd[0].data = *req_resp;
89 if (ioctl(fd, ISST_IF_MSR_COMMAND, &msr_cmds) == -1) {
90 perror("ISST_IF_MSR_COMMAND");
91 fprintf(outf, "Error: msr_cmd cpu:%d msr:%x read_write:%d\n",
95 *req_resp = msr_cmds.msr_cmd[0].data;
98 "msr_cmd response: cpu:%d msr:%x rd_write:%x resp:%llx %llx\n",
99 cpu, msr, write, *req_resp, msr_cmds.msr_cmd[0].data);
107 int isst_read_pm_config(struct isst_id *id, int *cp_state, int *cp_cap)
109 CHECK_CB(read_pm_config);
110 return isst_ops->read_pm_config(id, cp_state, cp_cap);
113 int isst_get_ctdp_levels(struct isst_id *id, struct isst_pkg_ctdp *pkg_dev)
115 CHECK_CB(get_config_levels);
116 return isst_ops->get_config_levels(id, pkg_dev);
119 int isst_get_ctdp_control(struct isst_id *id, int config_index,
120 struct isst_pkg_ctdp_level_info *ctdp_level)
122 CHECK_CB(get_ctdp_control);
123 return isst_ops->get_ctdp_control(id, config_index, ctdp_level);
126 int isst_get_tdp_info(struct isst_id *id, int config_index,
127 struct isst_pkg_ctdp_level_info *ctdp_level)
129 CHECK_CB(get_tdp_info);
130 return isst_ops->get_tdp_info(id, config_index, ctdp_level);
133 int isst_get_pwr_info(struct isst_id *id, int config_index,
134 struct isst_pkg_ctdp_level_info *ctdp_level)
136 CHECK_CB(get_pwr_info);
137 return isst_ops->get_pwr_info(id, config_index, ctdp_level);
140 int isst_get_coremask_info(struct isst_id *id, int config_index,
141 struct isst_pkg_ctdp_level_info *ctdp_level)
143 CHECK_CB(get_coremask_info);
144 return isst_ops->get_coremask_info(id, config_index, ctdp_level);
147 int isst_get_get_trl_from_msr(struct isst_id *id, int *trl)
149 unsigned long long msr_trl;
152 ret = isst_send_msr_command(id->cpu, 0x1AD, 0, &msr_trl);
156 trl[0] = msr_trl & GENMASK(7, 0);
157 trl[1] = (msr_trl & GENMASK(15, 8)) >> 8;
158 trl[2] = (msr_trl & GENMASK(23, 16)) >> 16;
159 trl[3] = (msr_trl & GENMASK(31, 24)) >> 24;
160 trl[4] = (msr_trl & GENMASK(39, 32)) >> 32;
161 trl[5] = (msr_trl & GENMASK(47, 40)) >> 40;
162 trl[6] = (msr_trl & GENMASK(55, 48)) >> 48;
163 trl[7] = (msr_trl & GENMASK(63, 56)) >> 56;
168 int isst_get_get_trl(struct isst_id *id, int level, int avx_level, int *trl)
170 CHECK_CB(get_get_trl);
171 return isst_ops->get_get_trl(id, level, avx_level, trl);
174 int isst_get_get_trls(struct isst_id *id, int level, struct isst_pkg_ctdp_level_info *ctdp_level)
176 CHECK_CB(get_get_trls);
177 return isst_ops->get_get_trls(id, level, ctdp_level);
180 int isst_get_trl_bucket_info(struct isst_id *id, int level, unsigned long long *buckets_info)
182 CHECK_CB(get_trl_bucket_info);
183 return isst_ops->get_trl_bucket_info(id, level, buckets_info);
186 int isst_set_tdp_level(struct isst_id *id, int tdp_level)
188 CHECK_CB(set_tdp_level);
189 return isst_ops->set_tdp_level(id, tdp_level);
192 int isst_get_pbf_info(struct isst_id *id, int level, struct isst_pbf_info *pbf_info)
194 struct isst_pkg_ctdp_level_info ctdp_level;
195 struct isst_pkg_ctdp pkg_dev;
198 ret = isst_get_ctdp_levels(id, &pkg_dev);
200 isst_display_error_info_message(1, "Failed to get number of levels", 0, 0);
204 if (level > pkg_dev.levels) {
205 isst_display_error_info_message(1, "Invalid level", 1, level);
209 ret = isst_get_ctdp_control(id, level, &ctdp_level);
213 if (!ctdp_level.pbf_support) {
214 isst_display_error_info_message(1, "base-freq feature is not present at this level", 1, level);
218 pbf_info->core_cpumask_size = alloc_cpu_set(&pbf_info->core_cpumask);
220 CHECK_CB(get_pbf_info);
221 return isst_ops->get_pbf_info(id, level, pbf_info);
224 int isst_set_pbf_fact_status(struct isst_id *id, int pbf, int enable)
226 CHECK_CB(set_pbf_fact_status);
227 return isst_ops->set_pbf_fact_status(id, pbf, enable);
232 int isst_get_fact_info(struct isst_id *id, int level, int fact_bucket, struct isst_fact_info *fact_info)
234 struct isst_pkg_ctdp_level_info ctdp_level;
235 struct isst_pkg_ctdp pkg_dev;
238 ret = isst_get_ctdp_levels(id, &pkg_dev);
240 isst_display_error_info_message(1, "Failed to get number of levels", 0, 0);
244 if (level > pkg_dev.levels) {
245 isst_display_error_info_message(1, "Invalid level", 1, level);
249 ret = isst_get_ctdp_control(id, level, &ctdp_level);
253 if (!ctdp_level.fact_support) {
254 isst_display_error_info_message(1, "turbo-freq feature is not present at this level", 1, level);
257 CHECK_CB(get_fact_info);
258 return isst_ops->get_fact_info(id, level, fact_bucket, fact_info);
261 int isst_get_trl(struct isst_id *id, unsigned long long *trl)
265 ret = isst_send_msr_command(id->cpu, 0x1AD, 0, trl);
272 int isst_set_trl(struct isst_id *id, unsigned long long trl)
277 trl = 0xFFFFFFFFFFFFFFFFULL;
279 ret = isst_send_msr_command(id->cpu, 0x1AD, 1, &trl);
286 #define MSR_TRL_FREQ_MULTIPLIER 100
288 int isst_set_trl_from_current_tdp(struct isst_id *id, unsigned long long trl)
290 unsigned long long msr_trl;
299 struct isst_pkg_ctdp pkg_dev;
303 ret = isst_get_ctdp_levels(id, &pkg_dev);
307 ret = isst_get_get_trl(id, pkg_dev.current_level, 0, trl);
312 for (i = 0; i < 8; ++i) {
313 unsigned long long _trl = trl[i];
315 /* MSR is always in 100 MHz unit */
316 if (isst_get_disp_freq_multiplier() == 1)
317 _trl /= MSR_TRL_FREQ_MULTIPLIER;
319 msr_trl |= (_trl << (i * 8));
322 ret = isst_send_msr_command(id->cpu, 0x1AD, 1, &msr_trl);
329 /* Return 1 if locked */
330 int isst_get_config_tdp_lock_status(struct isst_id *id)
332 unsigned long long tdp_control = 0;
335 ret = isst_send_msr_command(id->cpu, 0x64b, 0, &tdp_control);
339 ret = !!(tdp_control & BIT(31));
344 void isst_get_process_ctdp_complete(struct isst_id *id, struct isst_pkg_ctdp *pkg_dev)
348 if (!pkg_dev->processed)
351 for (i = 0; i < pkg_dev->levels; ++i) {
352 struct isst_pkg_ctdp_level_info *ctdp_level;
354 ctdp_level = &pkg_dev->ctdp_level[i];
355 if (ctdp_level->pbf_support)
356 free_cpu_set(ctdp_level->pbf_info.core_cpumask);
357 free_cpu_set(ctdp_level->core_cpumask);
361 void isst_adjust_uncore_freq(struct isst_id *id, int config_index,
362 struct isst_pkg_ctdp_level_info *ctdp_level)
364 CHECK_CB(adjust_uncore_freq);
365 return isst_ops->adjust_uncore_freq(id, config_index, ctdp_level);
368 int isst_get_process_ctdp(struct isst_id *id, int tdp_level, struct isst_pkg_ctdp *pkg_dev)
370 int i, ret, valid = 0;
372 if (pkg_dev->processed)
375 ret = isst_get_ctdp_levels(id, pkg_dev);
379 debug_printf("cpu: %d ctdp enable:%d current level: %d levels:%d\n",
380 id->cpu, pkg_dev->enabled, pkg_dev->current_level,
383 if (tdp_level != 0xff && tdp_level > pkg_dev->levels) {
384 isst_display_error_info_message(1, "Invalid level", 0, 0);
388 if (!pkg_dev->enabled)
389 isst_display_error_info_message(0, "perf-profile feature is not supported, just base-config level 0 is valid", 0, 0);
391 for (i = 0; i <= pkg_dev->levels; ++i) {
392 struct isst_pkg_ctdp_level_info *ctdp_level;
394 if (tdp_level != 0xff && i != tdp_level)
397 debug_printf("cpu:%d Get Information for TDP level:%d\n", id->cpu,
399 ctdp_level = &pkg_dev->ctdp_level[i];
401 ctdp_level->level = i;
402 ctdp_level->control_cpu = id->cpu;
403 ctdp_level->pkg_id = id->pkg;
404 ctdp_level->die_id = id->die;
406 ret = isst_get_ctdp_control(id, i, ctdp_level);
411 pkg_dev->processed = 1;
412 ctdp_level->processed = 1;
414 if (ctdp_level->pbf_support) {
415 ret = isst_get_pbf_info(id, i, &ctdp_level->pbf_info);
417 ctdp_level->pbf_found = 1;
420 if (ctdp_level->fact_support) {
421 ret = isst_get_fact_info(id, i, 0xff,
422 &ctdp_level->fact_info);
427 if (!pkg_dev->enabled && is_skx_based_platform()) {
430 freq = get_cpufreq_base_freq(id->cpu);
432 ctdp_level->sse_p1 = freq / 100000;
433 ctdp_level->tdp_ratio = ctdp_level->sse_p1;
436 isst_get_get_trl_from_msr(id, ctdp_level->trl_ratios[0]);
437 isst_get_trl_bucket_info(id, i, &ctdp_level->trl_cores);
441 ret = isst_get_tdp_info(id, i, ctdp_level);
445 ret = isst_get_pwr_info(id, i, ctdp_level);
449 ctdp_level->core_cpumask_size =
450 alloc_cpu_set(&ctdp_level->core_cpumask);
451 ret = isst_get_coremask_info(id, i, ctdp_level);
455 ret = isst_get_trl_bucket_info(id, i, &ctdp_level->trl_cores);
459 ret = isst_get_get_trls(id, i, ctdp_level);
465 isst_display_error_info_message(0, "Invalid level, Can't get TDP control information at specified levels on cpu", 1, id->cpu);
470 int isst_clos_get_clos_information(struct isst_id *id, int *enable, int *type)
472 CHECK_CB(get_clos_information);
473 return isst_ops->get_clos_information(id, enable, type);
476 int isst_pm_qos_config(struct isst_id *id, int enable_clos, int priority_type)
478 CHECK_CB(pm_qos_config);
479 return isst_ops->pm_qos_config(id, enable_clos, priority_type);
482 int isst_pm_get_clos(struct isst_id *id, int clos, struct isst_clos_config *clos_config)
484 CHECK_CB(pm_get_clos);
485 return isst_ops->pm_get_clos(id, clos, clos_config);
488 int isst_set_clos(struct isst_id *id, int clos, struct isst_clos_config *clos_config)
491 return isst_ops->set_clos(id, clos, clos_config);
494 int isst_clos_get_assoc_status(struct isst_id *id, int *clos_id)
496 CHECK_CB(clos_get_assoc_status);
497 return isst_ops->clos_get_assoc_status(id, clos_id);
500 int isst_clos_associate(struct isst_id *id, int clos_id)
502 CHECK_CB(clos_associate);
503 return isst_ops->clos_associate(id, clos_id);