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