perf tools: Add missing 'node' alias to the hw_cache[] array
Add "node" as a simple alias for NODE cache events. The addition of NODE cache events broke the parse_alias function, so any mismatched event caused the segfault, like: # ./perf stat -e krava ls The hw_cache/hw_cache_op/hw_cache_result arrays needs to follow PERF_COUNT_HW_CACHE_*MAX enums. Adding those MAXs to be size of those arrays, so possible ommision in future wil not lead to segfault. Adding read/write/prefetch as allowed operations for node cache event. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: acme@redhat.com Link: http://lkml.kernel.org/r/20110713205818.GB7827@jolsa.brq.redhat.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -86,22 +86,24 @@ static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
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#define MAX_ALIASES 8
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static const char *hw_cache[][MAX_ALIASES] = {
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static const char *hw_cache[PERF_COUNT_HW_CACHE_MAX][MAX_ALIASES] = {
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{ "L1-dcache", "l1-d", "l1d", "L1-data", },
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{ "L1-icache", "l1-i", "l1i", "L1-instruction", },
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{ "LLC", "L2" },
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{ "LLC", "L2", },
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{ "dTLB", "d-tlb", "Data-TLB", },
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{ "iTLB", "i-tlb", "Instruction-TLB", },
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{ "branch", "branches", "bpu", "btb", "bpc", },
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{ "node", },
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};
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static const char *hw_cache_op[][MAX_ALIASES] = {
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static const char *hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][MAX_ALIASES] = {
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{ "load", "loads", "read", },
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{ "store", "stores", "write", },
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{ "prefetch", "prefetches", "speculative-read", "speculative-load", },
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};
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static const char *hw_cache_result[][MAX_ALIASES] = {
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static const char *hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
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[MAX_ALIASES] = {
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{ "refs", "Reference", "ops", "access", },
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{ "misses", "miss", },
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};
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@ -124,6 +126,7 @@ static unsigned long hw_cache_stat[C(MAX)] = {
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[C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
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[C(ITLB)] = (CACHE_READ),
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[C(BPU)] = (CACHE_READ),
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[C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
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};
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#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
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@ -393,7 +396,7 @@ parse_generic_hw_event(const char **str, struct perf_event_attr *attr)
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PERF_COUNT_HW_CACHE_OP_MAX);
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if (cache_op >= 0) {
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if (!is_cache_op_valid(cache_type, cache_op))
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return 0;
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return EVT_FAILED;
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continue;
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}
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}
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