Messages in this thread Patch in this message |  | | From | Alexander Shishkin <> | Subject | [PATCH v0 32/71] perf tools: Allow TSC conversion on any arch | Date | Wed, 11 Dec 2013 14:36:44 +0200 |
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From: Adrian Hunter <adrian.hunter@intel.com>
It is possible to record a perf.data file on one architecture and process it on another. Consequently, TSC conversion functions need to be moved out of the arch directory.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> --- tools/perf/Makefile.perf | 2 ++ tools/perf/arch/x86/util/tsc.c | 22 +--------------------- tools/perf/arch/x86/util/tsc.h | 3 --- tools/perf/tests/perf-time-to-tsc.c | 3 +-- tools/perf/util/tsc.c | 25 +++++++++++++++++++++++++ tools/perf/util/tsc.h | 11 +++++++++++ 6 files changed, 40 insertions(+), 26 deletions(-) create mode 100644 tools/perf/util/tsc.c create mode 100644 tools/perf/util/tsc.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 9a8cf37..c1f9a54 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -292,6 +292,7 @@ LIB_H += util/intlist.h LIB_H += util/perf_regs.h LIB_H += util/unwind.h LIB_H += util/vdso.h +LIB_H += util/tsc.h LIB_H += ui/helpline.h LIB_H += ui/progress.h LIB_H += ui/util.h @@ -370,6 +371,7 @@ LIB_OBJS += $(OUTPUT)util/stat.o LIB_OBJS += $(OUTPUT)util/record.o LIB_OBJS += $(OUTPUT)util/srcline.o LIB_OBJS += $(OUTPUT)util/data.o +LIB_OBJS += $(OUTPUT)util/tsc.o LIB_OBJS += $(OUTPUT)ui/setup.o LIB_OBJS += $(OUTPUT)ui/helpline.o diff --git a/tools/perf/arch/x86/util/tsc.c b/tools/perf/arch/x86/util/tsc.c index b2519e4..831b6ed 100644 --- a/tools/perf/arch/x86/util/tsc.c +++ b/tools/perf/arch/x86/util/tsc.c @@ -6,29 +6,9 @@ #include "../../perf.h" #include "../../util/types.h" #include "../../util/debug.h" +#include "../../util/tsc.h" #include "tsc.h" -u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc) -{ - u64 t, quot, rem; - - t = ns - tc->time_zero; - quot = t / tc->time_mult; - rem = t % tc->time_mult; - return (quot << tc->time_shift) + - (rem << tc->time_shift) / tc->time_mult; -} - -u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc) -{ - u64 quot, rem; - - quot = cyc >> tc->time_shift; - rem = cyc & ((1 << tc->time_shift) - 1); - return tc->time_zero + quot * tc->time_mult + - ((rem * tc->time_mult) >> tc->time_shift); -} - int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc, struct perf_tsc_conversion *tc) { diff --git a/tools/perf/arch/x86/util/tsc.h b/tools/perf/arch/x86/util/tsc.h index a24dec8..18fb762 100644 --- a/tools/perf/arch/x86/util/tsc.h +++ b/tools/perf/arch/x86/util/tsc.h @@ -14,7 +14,4 @@ struct perf_event_mmap_page; int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc, struct perf_tsc_conversion *tc); -u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc); -u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc); - #endif /* TOOLS_PERF_ARCH_X86_UTIL_TSC_H__ */ diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-time-to-tsc.c index 4ca1b93..9ba7d38 100644 --- a/tools/perf/tests/perf-time-to-tsc.c +++ b/tools/perf/tests/perf-time-to-tsc.c @@ -9,10 +9,9 @@ #include "evsel.h" #include "thread_map.h" #include "cpumap.h" +#include "tsc.h" #include "tests.h" -#include "../arch/x86/util/tsc.h" - #define CHECK__(x) { \ while ((x) < 0) { \ pr_debug(#x " failed!\n"); \ diff --git a/tools/perf/util/tsc.c b/tools/perf/util/tsc.c new file mode 100644 index 0000000..bc69d86 --- /dev/null +++ b/tools/perf/util/tsc.c @@ -0,0 +1,25 @@ +#include <linux/compiler.h> + +#include "types.h" +#include "tsc.h" + +u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc) +{ + u64 t, quot, rem; + + t = ns - tc->time_zero; + quot = t / tc->time_mult; + rem = t % tc->time_mult; + return (quot << tc->time_shift) + + (rem << tc->time_shift) / tc->time_mult; +} + +u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc) +{ + u64 quot, rem; + + quot = cyc >> tc->time_shift; + rem = cyc & ((1 << tc->time_shift) - 1); + return tc->time_zero + quot * tc->time_mult + + ((rem * tc->time_mult) >> tc->time_shift); +} diff --git a/tools/perf/util/tsc.h b/tools/perf/util/tsc.h new file mode 100644 index 0000000..5083766 --- /dev/null +++ b/tools/perf/util/tsc.h @@ -0,0 +1,11 @@ +#ifndef __PERF_TSC_H +#define __PERF_TSC_H + +#include "types.h" + +#include "../arch/x86/util/tsc.h" + +u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc); +u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc); + +#endif -- 1.8.5.1
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