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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>
13 lines
398 B
C
13 lines
398 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright(C) 2020 Linaro Limited. All rights reserved.
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* Author: Mike Leach <mike.leach@linaro.org>
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*/
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/* declare preloaded configurations and features */
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/* from coresight-cfg-afdo.c - etm 4x features */
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#if IS_ENABLED(CONFIG_CORESIGHT_SOURCE_ETM4X)
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extern struct cscfg_feature_desc strobe_etm4x;
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extern struct cscfg_config_desc afdo_etm4x;
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#endif
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