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// 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");
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