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authorMadhavan Srinivasan <maddy@linux.vnet.ibm.com>2018-12-09 12:18:15 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2018-12-20 12:53:11 +0300
commit17cfccc91545682513541924245abb876d296063 (patch)
treed942541766da64abd89a138e7b6089fa910ae9b1 /usr
parent374f3f5979f9b28bfb5b5799208d82d08ef518a7 (diff)
downloadlinux-17cfccc91545682513541924245abb876d296063.tar.xz
powerpc/perf: Fix thresholding counter data for unknown type
MMCRA[34:36] and MMCRA[38:44] expose the thresholding counter value. Thresholding counter can be used to count latency cycles such as load miss to reload. But threshold counter value is not relevant when the sampled instruction type is unknown or reserved. Patch to fix the thresholding counter value to zero when sampled instruction type is unknown or reserved. Fixes: 170a315f41c6('powerpc/perf: Support to export MMCRA[TEC*] field to userspace') Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'usr')
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