+ itrace_mmap_munmap(&evlist->race_mmap) If (evlist->mmap.base != NULL) -731,6 +759,7 static void _perf_evlist_munmap(struct perf_evlist *evlist, int idx) Static void _perf_evlist_munmap(struct perf_evlist *evlist, int idx) + struct perf_evlist *evlist _maybe_unused, + unsigned int itrace_pages _maybe_unused, +void _weak itrace_mmap_munmap(struct itrace_mmap *mm _maybe_unused) + struct itrace_mmap_params *mp _maybe_unused, +int _weak itrace_mmap_mmap(struct itrace_mmap *mm _maybe_unused, +++ -724,6 +724,34 void perf_evlist_mmap_consume(struct perf_evlist *evlist, int idx) LIB_H += -399,6 +400,7 LIB_OBJS += $(OUTPUT)util/data.oĭiff -git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c It will be until further support is added, then If the requested itrace buffer size is zero, which One itrace buffer is mmapped per perf-events buffer. The first implementation will support Intel BTS and Instruction Tracing, hence the name "itrace". To contain hardware-produced trace information for
The expectation is that this buffer can be configured Of an "aux" buffer that can be mmapped separately
ITRACE FOUNDATION ADDRESS PATCH
This patch anticipates the addition to the kernel In reply to: Adrian Hunter: " perf tools: Add support for Instruction Trace recording".Previous message: Adrian Hunter: " perf tools: Add support for Instruction Trace recording".Next message: Jaewon Kim: " Add regulator-haptic driver".Linux-Kernel Archive: perf evlist: Add initial support for mmapping an Instruction Trace buffer perf evlist: Add initial support for mmapping an Instruction Trace buffer From: Adrian Hunter
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