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    SubjectRe: [PATCH 04/10] perf, x86: Making hardware events translations available in sysfs
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    On Wed, 2012-07-04 at 00:00 +0200, Jiri Olsa wrote:
    > +#define PMU_EVENTS_ATTR_CONFIG(_name, _id) \
    > +static ssize_t \
    > +_name##_show(struct device *dev, \
    > + struct device_attribute *attr, \
    > + char *page) \
    > +{ \
    > + u64 val = x86_pmu.event_map(_id); \
    > + BUILD_BUG_ON(_id >= PERF_COUNT_HW_MAX); \
    > + return sprintf(page, "config=0x%llx\n", val); \
    > +} \

    How about something like:

    u64 config = x86_pmu.event_map(_id);
    u64 event = (config & ARCH_PERFMON_EVENTSEL_EVENT) |
    (config & AMD64_EVENTSEL_EVENT) >> 24;
    u64 umask = (config & ARCH_PERFMON_EVENTSEL_UMASK) >> 8;

    WARN_ON_ONCE(config & (ARCH_PERFMON_EVENTSEL_INV |
    ARCH_PERFMON_EVENTSEL_CMASK));

    sprintf("event=0x%02llx,umask=0x%02llx\n", event, umask);






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