linux-kernel - ARM Coresight: Enhance ETM tracing control

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Message-ID: <CANsc=4X_C53AHe5p5sRiHDGPA0+P4NgtGWrhOe0h27MZ9LwWbQ@mail.gmail.com>
Date:	Tue, 3 Dec 2013 23:37:58 -0500
From:	Adrien Vergé <adrienverge@...il.com>
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	Russell King <linux@....linux.org.uk>,
	Ben Dooks <ben.dooks@...ethink.co.uk>,
	Will Deacon <will.deacon@....com>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"zhangwei(Jovi)" <jovi.zhangwei@...wei.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Randy Dunlap <rdunlap@...radead.org>
Subject: 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 <adrienverge@...il.com>
Cc: Russell King <linux@....linux.org.uk>
Cc: Ben Dooks <ben.dooks@...ethink.co.uk>
Cc: Will Deacon <will.deacon@....com>
Cc: Dietmar Eggemann <dietmar.eggemann@....com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: "zhangwei(Jovi)" <jovi.zhangwei@...wei.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Randy Dunlap <rdunlap@...radead.org>
---
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(-)

-- 
1.8.3.1
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