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3c728e079d
linux/drivers/hwtracing/coresight
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Tamas Zsoldos 3c728e079d coresight: etm4x: add CPU hotplug support for probing 
etm4x devices cannot be successfully probed when their CPU is offline.
For example, when booting with maxcpus=n, ETM probing will fail on
CPUs >n, and the probing won't be reattempted once the CPUs come
online. This will leave those CPUs unable to make use of ETM.

This change adds a mechanism to delay the probing if the corresponding
CPU is offline, and to try it again when the CPU comes online.

Signed-off-by: Tamas Zsoldos <tamas.zsoldos@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20220705145935.24679-1-tamas.zsoldos@arm.com
2022-10-31 10:32:46 +00:00
..
coresight-catu.c coresight: Re-use same function for similar sysfs register accessors 2022-08-31 10:55:28 -06:00
coresight-catu.h coresight: Make new csdev_access offsets unsigned 2022-08-31 10:56:36 -06:00
coresight-cfg-afdo.c coresight: config: Add preloaded configurations 2021-08-18 22:33:28 +02:00
coresight-cfg-preload.c coresight: configuration: Update API to introduce load owner concept 2021-11-26 11:27:21 -07:00
coresight-cfg-preload.h coresight: config: Add preloaded configurations 2021-08-18 22:33:28 +02:00
coresight-config.c coresight: config: Add configuration and feature generic functions 2021-08-18 22:33:27 +02:00
coresight-config.h coresight: syscfg: Update load and unload operations 2022-06-29 09:35:58 -06:00
coresight-core.c coresight: Fix possible deadlock with lock dependency 2022-10-20 22:32:02 +01:00
coresight-cpu-debug.c coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier 2022-05-09 16:03:24 +01:00
coresight-cti-core.c coresight: cti: Fix hang in cti_disable_hw() 2022-10-25 19:08:07 +02:00
coresight-cti-platform.c coresight: cti: Reduce scope for the variable 'cs_fwnode' in cti_plat_create_connection() 2021-02-04 17:00:32 +01:00
coresight-cti-sysfs.c coresight: cti-sysfs: Mark coresight_cti_reg_store() as __maybe_unused 2022-09-06 14:14:33 -06:00
coresight-cti.h coresight: Include required headers in C files 2020-05-19 16:31:18 +02:00
coresight-etb10.c coresight: Re-use same function for similar sysfs register accessors 2022-08-31 10:55:28 -06:00
coresight-etm3x-core.c coresight: etm3x: Cleanup ETMTECR1 register accesses 2022-04-13 11:05:17 -06:00
coresight-etm3x-sysfs.c coresight: Re-use same function for similar sysfs register accessors 2022-08-31 10:55:28 -06:00
coresight-etm4x-cfg.c coresight: etm4x: Add complex configuration handlers to etmv4 2021-08-18 22:33:28 +02:00
coresight-etm4x-cfg.h coresight: config: Add preloaded configurations 2021-08-18 22:33:28 +02:00
coresight-etm4x-core.c coresight: etm4x: add CPU hotplug support for probing 2022-10-31 10:32:46 +00:00
coresight-etm4x-sysfs.c coresight: etm4x: Expose default timestamp source in sysfs 2022-08-26 13:37:52 -06:00
coresight-etm4x.h asm-generic: updates for 6.0 2022-08-05 10:07:23 -07:00
coresight-etm-cp14.c coresight: Moving framework and drivers to SPDX identifier 2018-05-14 16:19:59 +02:00
coresight-etm-perf.c coresight: Add config flag to enable branch broadcast 2022-07-06 16:32:08 +01:00
coresight-etm-perf.h coresight: etm-perf: Update to activate selected configuration 2021-08-18 22:33:28 +02:00
coresight-etm.h coresight: etm: Clean up device specific data 2019-06-19 20:29:14 +02:00
coresight-funnel.c Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next 2021-02-05 11:15:43 +01:00
coresight-platform.c hwtracing: coresight: Replace acpi_bus_get_device() 2022-03-11 10:07:34 +00:00
coresight-priv.h coresight: Make new csdev_access offsets unsigned 2022-08-31 10:56:36 -06:00
coresight-replicator.c coresight: Re-use same function for similar sysfs register accessors 2022-08-31 10:55:28 -06:00
coresight-self-hosted-trace.h coresight: trbe: Prohibit trace before disabling TRBE 2021-10-27 11:45:33 -06:00
coresight-stm.c coresight: Re-use same function for similar sysfs register accessors 2022-08-31 10:55:28 -06:00
coresight-syscfg-configfs.c coresight: configfs: Allow configfs to activate configuration 2021-11-26 11:34:27 -07:00
coresight-syscfg-configfs.h coresight: configfs: Allow configfs to activate configuration 2021-11-26 11:34:27 -07:00
coresight-syscfg.c coresight: syscfg: Update load and unload operations 2022-06-29 09:35:58 -06:00
coresight-syscfg.h coresight: syscfg: Update load and unload operations 2022-06-29 09:35:58 -06:00
coresight-sysfs.c coresight: Export global symbols 2020-09-28 19:47:40 +02:00
coresight-tmc-core.c coresight: Re-use same function for similar sysfs register accessors 2022-08-31 10:55:28 -06:00
coresight-tmc-etf.c coresight: Update comments for removing cs_etm_find_snapshot() 2021-10-27 11:44:50 -06:00
coresight-tmc-etr.c coresight: tmc-etr: Speed up for bounce buffer in flat mode 2021-10-27 11:44:52 -06:00
coresight-tmc.h coresight: Make new csdev_access offsets unsigned 2022-08-31 10:56:36 -06:00
coresight-tpiu.c Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into char-misc-next 2021-02-05 11:15:43 +01:00
coresight-trbe.c coresight: trbe: Move check for kernel page table isolation from EL0 to probe 2022-03-11 10:07:43 +00:00
coresight-trbe.h arm64/sysreg: Fix a few missed conversions 2022-09-21 09:24:29 +01:00
Kconfig coresight: trbe: fix Kconfig "its" grammar 2022-08-22 09:56:30 -06:00
Makefile coresight: syscfg: Add initial configfs support 2021-08-18 22:33:28 +02:00