4 Commits

Author	SHA1	Message	Date
Alexander Shishkin	9f5336915b	ARM: 6293/1: coresight: cosmetic fixes ... Use BIT() macro whenever it is sensible to do so. Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>	2010-10-04 20:20:44 +01:00
Alexander Shishkin	8234eaef80	ARM: 6291/1: coresight: move struct tracectx inside etm driver ... This is done so as to be able to make use of the coresight components' registers in assembler code (like omap sleep code). Also, there shouldn't be any users of this structure outside the etm driver. Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>	2010-10-04 20:20:44 +01:00
Alexander Shishkin	9e354ea8e0	ARM: 6292/1: coresight: add ETM management registers ... Add notion of ETM OS lock, save and restore registers. Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>	2010-08-10 22:10:53 +01:00
Alexander Shishkin	c5d6c7708c	ARM: 5841/1: a driver for on-chip ETM and ETB ... This driver implements support for on-chip Embedded Tracing Macrocell and Embedded Trace Buffer. It allows to trigger tracing of kernel execution flow and exporting trace output to userspace via character device and a sysrq combo. Trace output can then be decoded by a fairly simple open source tool [1] which is already sufficient to get the idea of what the kernel is doing. [1]: http://github.com/virtuoso/etm2human Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>	2009-12-02 10:25:22 +00:00