From f8d9ccde2be4c24bfb8787af36a59a981b00a02d Mon Sep 17 00:00:00 2001 From: Alexander Yarygin Date: Thu, 3 Jul 2014 18:08:22 +0400 Subject: [PATCH] perf tools: Allow to use cpuinfo on s390 This patch defines CPUINFO_PROC for s390 and implements get_cpuid(). Reviewed-by: Cornelia Huck Reviewed-by: David Ahern Signed-off-by: Alexander Yarygin Acked-by: Christian Borntraeger Cc: Christian Borntraeger Cc: Cornelia Huck Cc: David Ahern Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/87ioneo7qh.wl%yarygin@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/s390/Makefile | 1 + tools/perf/arch/s390/util/header.c | 28 ++++++++++++++++++++++++++++ tools/perf/perf-sys.h | 1 + 3 files changed, 30 insertions(+) create mode 100644 tools/perf/arch/s390/util/header.c diff --git a/tools/perf/arch/s390/Makefile b/tools/perf/arch/s390/Makefile index 15130b50dfe3..744e629797be 100644 --- a/tools/perf/arch/s390/Makefile +++ b/tools/perf/arch/s390/Makefile @@ -2,3 +2,4 @@ ifndef NO_DWARF PERF_HAVE_DWARF_REGS := 1 LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o endif +LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o diff --git a/tools/perf/arch/s390/util/header.c b/tools/perf/arch/s390/util/header.c new file mode 100644 index 000000000000..9fa6c3e5782c --- /dev/null +++ b/tools/perf/arch/s390/util/header.c @@ -0,0 +1,28 @@ +/* + * Implementation of get_cpuid(). + * + * Copyright 2014 IBM Corp. + * Author(s): Alexander Yarygin + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2 only) + * as published by the Free Software Foundation. + */ + +#include +#include +#include +#include + +#include "../../util/header.h" + +int get_cpuid(char *buffer, size_t sz) +{ + const char *cpuid = "IBM/S390"; + + if (strlen(cpuid) + 1 > sz) + return -1; + + strcpy(buffer, cpuid); + return 0; +} diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h index 5268a1481d23..937e4324ad94 100644 --- a/tools/perf/perf-sys.h +++ b/tools/perf/perf-sys.h @@ -54,6 +54,7 @@ #define mb() asm volatile("bcr 15,0" ::: "memory") #define wmb() asm volatile("bcr 15,0" ::: "memory") #define rmb() asm volatile("bcr 15,0" ::: "memory") +#define CPUINFO_PROC "vendor_id" #endif #ifdef __sh__ -- 2.39.5