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7fdc9bb2ce
Preload set of configurations. This patch creates a small set of preloaded configurations and features that are available immediately after coresight has been initialised. The current set provides a strobing feature for ETMv4, that creates a periodic sampling of trace by switching trace generation on and off using counters in the ETM. A configuration called "autofdo" is also provided that uses the 'strobing' feature and provides a couple of preset values, selectable on the perf command line. Link: https://lore.kernel.org/r/20210723165444.1048-9-mike.leach@linaro.org Signed-off-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210818194022.379573-9-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
30 lines
765 B
C
30 lines
765 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2014-2020, The Linux Foundation. All rights reserved.
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*/
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#ifndef _CORESIGHT_ETM4X_CFG_H
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#define _CORESIGHT_ETM4X_CFG_H
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#include "coresight-config.h"
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#include "coresight-etm4x.h"
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/* ETMv4 specific config defines */
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/* resource IDs */
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#define ETM4_CFG_RES_CTR 0x001
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#define ETM4_CFG_RES_CMP 0x002
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#define ETM4_CFG_RES_CMP_PAIR0 0x003
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#define ETM4_CFG_RES_CMP_PAIR1 0x004
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#define ETM4_CFG_RES_SEL 0x005
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#define ETM4_CFG_RES_SEL_PAIR0 0x006
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#define ETM4_CFG_RES_SEL_PAIR1 0x007
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#define ETM4_CFG_RES_SEQ 0x008
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#define ETM4_CFG_RES_TS 0x009
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#define ETM4_CFG_RES_MASK 0x00F
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/* ETMv4 specific config functions */
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int etm4_cscfg_register(struct coresight_device *csdev);
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#endif /* CORESIGHT_ETM4X_CFG_H */
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