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5d05b9d462
pmccntr_read and pmccntr_write contained duplicate code that was already being handled by pmccntr_sync. Consolidate the duplicated code into two functions: pmccntr_op_start and pmccntr_op_finish. Add a companion to c15_ccnt in CPUARMState so that we can simultaneously save both the architectural register value and the last underlying cycle count - this ensures time isn't lost and will also allow us to access the 'old' architectural register value in order to detect overflows in later patches. Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org> Signed-off-by: Aaron Lindsay <aclindsa@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20181211151945.29137-3-aaron@os.amperecomputing.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
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