| fa637bf0595ee1796d728a0d33b6b7fff12e1f3d |
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15-Sep-2014 |
Pawel Moll <pawel.moll@arm.com> |
bus: arm-ccn: Fix spurious warning message
Because CCN's cycle counter always runs, it will generate
an interrupt on overflow even if the relevant perf event
was not requested, causing a spurious warning message.
Fixed now by warning on only normal counter unwanted
overflows. Also cleaning the overflow mask at init now,
not to warn on event previously requested by firmware.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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| 8fb22264350d99793a12867f4e2a43e50150f778 |
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02-Sep-2014 |
Pawel Moll <mail@pawelmoll.com> |
bus: arm-ccn: Move event cleanup routine
The function cleaning up an initialized event
was called from the "event_del" handler, instead
of being used as the "destroy" callback. In case of
events group allocation this caused NULL pointer
dereference (as events are added and deleted
multiple times then). Fixed now.
Signed-off-by: Pawel Moll <mail@pawelmoll.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
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| bf87bb12bd7062bf577163f3f6d765debbae6200 |
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18-Aug-2014 |
Pawel Moll <pawel.moll@arm.com> |
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>
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| 3e528cb7bae00ba0d73def6645d0f2fa906ee3e8 |
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31-Jul-2014 |
Pawel Moll <pawel.moll@arm.com> |
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>
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| a33b0daab73a0e08cc04459dd44b0121a8e8f81b |
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22-Jul-2014 |
Pawel Moll <pawel.moll@arm.com> |
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>
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