// 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");