Commit Graph

3 Commits

Author SHA1 Message Date
Pawel Moll
bf87bb12bd bus: arm-ccn: Fix warning message
A message warning a user about wrong vc value was printing
out port instead.

Reported-by: Drew Richardson <drew.richardson@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-24 11:28:30 -07:00
Pawel Moll
3e528cb7ba bus: arm-ccn: Fix error handling at event allocation
The bitfield allocation function returns error condition
as a negative value, but in two cases its result
was assigned to an unsigned member of the hw_perf_event
structure, thus the error would not be ever detected.

Fixed by using an intermediate, signed variable.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-31 20:46:57 -07:00
Pawel Moll
a33b0daab7 bus: ARM CCN PMU driver
Driver providing perf backend for ARM Cache Coherent Network
interconnect. Supports counting all hardware events and crosspoint
watchpoints.

Currently works with CCN-504 only, although there should be
no changes required for CCN-508 (just impossible to test it now).

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-07-23 22:14:43 +02:00