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authorSuzuki K. Poulose <suzuki.poulose@arm.com>2015-05-26 10:53:12 +0100
committerArnd Bergmann <arnd@arndb.de>2015-05-29 16:43:49 +0200
commitab5b316d4b6d2f944ffcb4a742443207eda51cfb (patch)
tree56a32de739f28fc06c2fb5150aadbe0588afad95 /lib/lockref.c
parenta1a076d767f99209fe3ebd1fe394028620914ebe (diff)
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arm-cci: Abstract out the PMU counter details
Adds the PMU model specific counters to the PMU model abstraction to make it easier to add a new PMU. The patch cleans up the naming convention used all over the code. e.g, CCI_PMU_MAX_HW_EVENTS => maximum number of events that can be counted at any time, which is in fact the maximum number of counters available. Change all such namings to use 'counters' instead of events. This patch also abstracts the following: 1) Size of a PMU event counter area. 2) Maximum number of programmable counters supported by the PMU model 3) Number of counters which counts fixed events (e.g, cycle counter on CCI-400). Also changes some of the static allocation of the data structures to dynamic, to accommodate the number of events supported by a PMU. Gets rid ofthe CCI_PMU_* defines for the model. All such data should be accessed via the model abstraction. Limits the number of counters to the maximum supported by the 'model'. Cc: Punit Agrawal <punit.agrawal@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com> Acked-by: Punit Agrawal <punit.agrawal@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'lib/lockref.c')
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