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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright(C) 2023 Marvell.
* Based on coresight-cfg-afdo.c
*/
#include "coresight-config.h"
/* ETMv4 includes and features */
#if IS_ENABLED(CONFIG_CORESIGHT_SOURCE_ETM4X)
#include "coresight-etm4x-cfg.h"
/* preload configurations and features */
/* preload in features for ETMv4 */
/* panic_stop feature */
static struct cscfg_parameter_desc gen_etrig_params[] = {
{
.name = "address",
.value = (u64)panic,
},
};
static struct cscfg_regval_desc gen_etrig_regs[] = {
/* resource selector */
{
.type = CS_CFG_REG_TYPE_RESOURCE,
.offset = TRCRSCTLRn(2),
.hw_info = ETM4_CFG_RES_SEL,
.val32 = 0x40001,
},
/* single address comparator */
{
.type = CS_CFG_REG_TYPE_RESOURCE | CS_CFG_REG_TYPE_VAL_64BIT |
CS_CFG_REG_TYPE_VAL_PARAM,
.offset = TRCACVRn(0),
.val32 = 0x0,
},
{
.type = CS_CFG_REG_TYPE_RESOURCE,
.offset = TRCACATRn(0),
.val64 = 0xf00,
},
/* Driver external output[0] with comparator out */
{
.type = CS_CFG_REG_TYPE_RESOURCE,
.offset = TRCEVENTCTL0R,
.val32 = 0x2,
},
/* end of regs */
};
struct cscfg_feature_desc gen_etrig_etm4x = {
.name = "gen_etrig",
.description = "Generate external trigger on address match\n"
"parameter \'address\': address of kernel address\n",
.match_flags = CS_CFG_MATCH_CLASS_SRC_ETM4,
.nr_params = ARRAY_SIZE(gen_etrig_params),
.params_desc = gen_etrig_params,
.nr_regs = ARRAY_SIZE(gen_etrig_regs),
.regs_desc = gen_etrig_regs,
};
/* create a panic stop configuration */
/* the total number of parameters in used features */
#define PSTOP_NR_PARAMS ARRAY_SIZE(gen_etrig_params)
static const char *pstop_ref_names[] = {
"gen_etrig",
};
struct cscfg_config_desc pstop_etm4x = {
.name = "panicstop",
.description = "Stop ETM on kernel panic\n",
.nr_feat_refs = ARRAY_SIZE(pstop_ref_names),
.feat_ref_names = pstop_ref_names,
.nr_total_params = PSTOP_NR_PARAMS,
};
/* end of ETM4x configurations */
#endif /* IS_ENABLED(CONFIG_CORESIGHT_SOURCE_ETM4X) */
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