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authorAndrew Murray <[email protected]>2019-01-10 13:53:30 +0000
committerIngo Molnar <[email protected]>2019-01-21 11:01:25 +0100
commita66b0010f89e50ca0dd8bb3dc5187cd21e1da891 (patch)
tree6e7af291b8f009d2d440c4f9314eea101f2cf6cb /tools/perf/scripts/python/export-to-postgresql.py
parent306563985819ed2af9df0a26ae368ed12cf28f41 (diff)
perf/drivers: Strengthen exclusion checks with PERF_PMU_CAP_NO_EXCLUDE
For drivers that do not support context exclusion let's advertise the PERF_PMU_CAP_NO_EXCLUDE capability. This ensures that perf will prevent us from handling events where any exclusion flags are set. Let's also remove the now unnecessary check for exclusion flags. This change means that qcom_{l2|l3}_pmu will now also indicate that they do not support exclude_{host|guest} and that xgene_pmu does not also support exclude_idle and exclude_hv. Note that for qcom_l2_pmu we now implictly return -EINVAL instead of -EOPNOTSUPP. This change will result in the perf userspace utility retrying the perf_event_open system call with fallback event attributes that do not fail. Signed-off-by: Andrew Murray <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Acked-by: Will Deacon <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Matt Turner <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Russell King <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Shawn Guo <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
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