• Andrew Murray's avatar
    perf/core, arch/arm: Use PERF_PMU_CAP_NO_EXCLUDE conditionally · 1d899c0e
    Andrew Murray authored
    The ARM PMU driver can be used to represent a variety of ARM based
    PMUs. Some of these PMUs do not provide support for context
    exclusion, where this is the case we advertise the
    PERF_PMU_CAP_NO_EXCLUDE capability to ensure that perf prevents us
    from handling events where any exclusion flags are set.
    
    Where an ARM PMU driver has the set_event_filter function implemented,
    we rely on it to perform exclusion checks. At present some of these
    functions do not test for all of the available exclude flags.
    Signed-off-by: default avatarAndrew Murray <andrew.murray@arm.com>
    Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
    Acked-by: default avatarWill Deacon <will.deacon@arm.com>
    Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Matt Turner <mattst88@gmail.com>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Richard Henderson <rth@twiddle.net>
    Cc: Russell King <linux@armlinux.org.uk>
    Cc: Sascha Hauer <s.hauer@pengutronix.de>
    Cc: Shawn Guo <shawnguo@kernel.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: linux-arm-kernel@lists.infradead.org
    Cc: linuxppc-dev@lists.ozlabs.org
    Cc: robin.murphy@arm.com
    Cc: suzuki.poulose@arm.com
    Link: https://lkml.kernel.org/r/1547128414-50693-6-git-send-email-andrew.murray@arm.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
    1d899c0e
arm_pmu.c 20.8 KB