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perf/arm-cmn: Remove spurious event aliases
As the name suggests, the "partial DAT flit" event is only counted for the DAT channel, and furthermore is only applicable to device ports, not mesh links (strictly it's only device ports with CHI-A requesters connected, but detecting that degree of detail is more bother than it's worth). Stop generating spurious event aliases for other combinations which aren't meaningful. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/b01a58e3ff05c322547fbfd015f6dbfedf555ed3.1688746690.git.robin.murphy@arm.com Signed-off-by: Will Deacon <will@kernel.org>
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1 changed files with 13 additions and 3 deletions
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@ -791,16 +791,22 @@ static umode_t arm_cmn_event_attr_is_visible(struct kobject *kobj,
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_CMN_EVENT_HNF(_model, _name##_read, _event, 5, SEL_CBUSY_SNTHROTTLE_SEL), \
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_CMN_EVENT_HNF(_model, _name##_write, _event, 6, SEL_CBUSY_SNTHROTTLE_SEL)
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#define _CMN_EVENT_XP(_name, _event) \
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#define _CMN_EVENT_XP_MESH(_name, _event) \
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__CMN_EVENT_XP(e_##_name, (_event) | (0 << 2)), \
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__CMN_EVENT_XP(w_##_name, (_event) | (1 << 2)), \
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__CMN_EVENT_XP(n_##_name, (_event) | (2 << 2)), \
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__CMN_EVENT_XP(s_##_name, (_event) | (3 << 2)), \
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__CMN_EVENT_XP(s_##_name, (_event) | (3 << 2))
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#define _CMN_EVENT_XP_PORT(_name, _event) \
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__CMN_EVENT_XP(p0_##_name, (_event) | (4 << 2)), \
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__CMN_EVENT_XP(p1_##_name, (_event) | (5 << 2)), \
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__CMN_EVENT_XP(p2_##_name, (_event) | (6 << 2)), \
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__CMN_EVENT_XP(p3_##_name, (_event) | (7 << 2))
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#define _CMN_EVENT_XP(_name, _event) \
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_CMN_EVENT_XP_MESH(_name, _event), \
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_CMN_EVENT_XP_PORT(_name, _event)
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/* Good thing there are only 3 fundamental XP events... */
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#define CMN_EVENT_XP(_name, _event) \
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_CMN_EVENT_XP(req_##_name, (_event) | (0 << 5)), \
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@ -813,6 +819,10 @@ static umode_t arm_cmn_event_attr_is_visible(struct kobject *kobj,
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_CMN_EVENT_XP(snp2_##_name, (_event) | (7 << 5)), \
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_CMN_EVENT_XP(req2_##_name, (_event) | (8 << 5))
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#define CMN_EVENT_XP_DAT(_name, _event) \
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_CMN_EVENT_XP_PORT(dat_##_name, (_event) | (3 << 5)), \
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_CMN_EVENT_XP_PORT(dat2_##_name, (_event) | (6 << 5))
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static struct attribute *arm_cmn_event_attrs[] = {
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CMN_EVENT_DTC(cycles),
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@ -943,7 +953,7 @@ static struct attribute *arm_cmn_event_attrs[] = {
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CMN_EVENT_XP(txflit_valid, 0x01),
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CMN_EVENT_XP(txflit_stall, 0x02),
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CMN_EVENT_XP(partial_dat_flit, 0x03),
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CMN_EVENT_XP_DAT(partial_dat_flit, 0x03),
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/* We treat watchpoints as a special made-up class of XP events */
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CMN_EVENT_ATTR(CMN_ANY, watchpoint_up, CMN_TYPE_WP, CMN_WP_UP),
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CMN_EVENT_ATTR(CMN_ANY, watchpoint_down, CMN_TYPE_WP, CMN_WP_DOWN),
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