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84cc4e66d9
The testcase uses "instructions" event to generate the samples and fetch Monitor Mode Control Register A (MMCRA) when overflow. Branch History Rolling Buffer(bhrb) disable bit is part of MMCRA which need to be verified by perf interface. Testcase checks if the bhrb disable bit of MMCRA register is programmed correctly via perf interface for ISA v3.1 platform Also make get_mmcra_ifm return type as u64. Signed-off-by: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220610134113.62991-9-atrajeev@linux.vnet.ibm.com