Directly accessing kernel files is not allowed anymore. As such making file coresight-pmu.h accessible by the perf tools and complain if this copy strays from the one found in the main kernel tree.
Signed-off-by: Mathieu Poirier <mathieu.poir...@linaro.org> --- tools/include/linux/coresight-pmu.h | 39 +++++++++++++++++++++++++++++++++++++ tools/perf/MANIFEST | 1 + tools/perf/Makefile.perf | 3 +++ 3 files changed, 43 insertions(+) create mode 100644 tools/include/linux/coresight-pmu.h diff --git a/tools/include/linux/coresight-pmu.h b/tools/include/linux/coresight-pmu.h new file mode 100644 index 000000000000..7d410260661b --- /dev/null +++ b/tools/include/linux/coresight-pmu.h @@ -0,0 +1,39 @@ +/* + * Copyright(C) 2015 Linaro Limited. All rights reserved. + * Author: Mathieu Poirier <mathieu.poir...@linaro.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _LINUX_CORESIGHT_PMU_H +#define _LINUX_CORESIGHT_PMU_H + +#define CORESIGHT_ETM_PMU_NAME "cs_etm" +#define CORESIGHT_ETM_PMU_SEED 0x10 + +/* ETMv3.5/PTM's ETMCR config bit */ +#define ETM_OPT_CYCACC 12 +#define ETM_OPT_TS 28 + +static inline int coresight_get_trace_id(int cpu) +{ + /* + * A trace ID of value 0 is invalid, so let's start at some + * random value that fits in 7 bits and go from there. Since + * the common convention is to have data trace IDs be I(N) + 1, + * set instruction trace IDs as a function of the CPU number. + */ + return (CORESIGHT_ETM_PMU_SEED + (cpu * 2)); +} + +#endif diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST index 923eda2e7d52..475e6304db18 100644 --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -77,6 +77,7 @@ tools/include/linux/stringify.h tools/include/linux/types.h tools/include/linux/err.h tools/include/linux/bitmap.h +tools/include/linux/coresight-pmu.h include/asm-generic/bitops/arch_hweight.h include/asm-generic/bitops/const_hweight.h include/asm-generic/bitops/fls64.h diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index a129fbc1ed37..739af9493e14 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -411,6 +411,9 @@ $(PERF_IN): prepare FORCE @(test -f ../../arch/arm64/include/uapi/asm/kvm.h && ( \ (diff -B ../arch/arm64/include/uapi/asm/kvm.h ../../arch/arm64/include/uapi/asm/kvm.h >/dev/null) \ || echo "Warning: tools/arch/arm64/include/uapi/asm/kvm.h differs from kernel" >&2 )) || true + @(test -f ../../include/linux/coresight-pmu.h && ( \ + (diff -B ../include/linux/coresight-pmu.h ../../include/linux/coresight-pmu.h >/dev/null) \ + || echo "Warning: tools/include/linux/coresight-pmu.h differs from kernel" >&2 )) || true $(Q)$(MAKE) $(build)=perf $(OUTPUT)perf: $(PERFLIBS) $(PERF_IN) $(LIBTRACEEVENT_DYNAMIC_LIST) -- 2.7.4
