// SPDX-License-Identifier: GPL-2.0 /* * Copyright(C) 2020 Linaro Limited. All rights reserved. * Author: Mike Leach <mike.leach@linaro.org> */ #include "coresight-config.h" #include "coresight-syscfg.h" /* create an alternate autofdo configuration */ /* we will provide 4 sets of preset parameter values */ #define AFDO2_NR_PRESETS 4 /* the total number of parameters in used features - strobing has 2 */ #define AFDO2_NR_PARAM_SUM 2 static const char *afdo2_ref_names[] = { "strobing", }; /* * set of presets leaves strobing window constant while varying period to allow * experimentation with mark / space ratios for various workloads */ static u64 afdo2_presets[AFDO2_NR_PRESETS][AFDO2_NR_PARAM_SUM] = { { 1000, 100 }, { 1000, 1000 }, { 1000, 5000 }, { 1000, 10000 }, }; struct cscfg_config_desc afdo2 = { .name = "autofdo2", .description = "Setup ETMs with strobing for autofdo\n" "Supplied presets allow experimentation with mark-space ratio for various loads\n", .nr_feat_refs = ARRAY_SIZE(afdo2_ref_names), .feat_ref_names = afdo2_ref_names, .nr_presets = AFDO2_NR_PRESETS, .nr_total_params = AFDO2_NR_PARAM_SUM, .presets = &afdo2_presets[0][0], }; static struct cscfg_feature_desc *sample_feats[] = { NULL }; static struct cscfg_config_desc *sample_cfgs[] = { &afdo2, NULL }; static struct cscfg_load_owner_info mod_owner = { .type = CSCFG_OWNER_MODULE, .owner_handle = THIS_MODULE, }; /* module init and exit - just load and unload configs */ static int __init cscfg_sample_init(void) { return cscfg_load_config_sets(sample_cfgs, sample_feats, &mod_owner); } static void __exit cscfg_sample_exit(void) { cscfg_unload_config_sets(&mod_owner); } module_init(cscfg_sample_init); module_exit(cscfg_sample_exit); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Mike Leach <mike.leach@linaro.org>"); MODULE_DESCRIPTION("CoreSight Syscfg Example");