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Subject[PATCH 0/3] ARM Coresight: Enhance ETM tracing control
Usage of ETM tracing facility is currently very limited: user can
only start/stop tracing. This set of patches enables management of
address combinations and PIDs that trigger tracing.

ETM management was done via sysfs entries (trace_info,
trace_running...), this code adds trace_addrrange and trace_pid to
let the user read/write custom values.

This series of patches apply to v3.13-rc2.

Signed-off-by: Adrien Vergé <>
Cc: Russell King <>
Cc: Ben Dooks <>
Cc: Will Deacon <>
Cc: Dietmar Eggemann <>
Cc: Andrew Morton <>
Cc: "zhangwei(Jovi)" <>
Cc: Greg Kroah-Hartman <>
Cc: Randy Dunlap <>
Adrien Vergé (3):
ARM Coresight: Rename 'comparator' to 'address comparator' in ETM
ARM Coresight: Add address control support for ETM tracing
ARM Coresight: Add PID control support for ETM tracing

arch/arm/Kconfig.debug | 1 +
arch/arm/include/asm/hardware/coresight.h | 7 +-
arch/arm/kernel/etm.c | 139 ++++++++++++++++++++++++++----
3 files changed, 129 insertions(+), 18 deletions(-)

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