linux-kernel - [PATCH 08/22] perf powerpc: Support CPU ID matching for Powerpc

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Date:   Mon,  3 Oct 2016 23:37:07 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Linux Weekly News <lwn@....net>,
        Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
        Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        linuxppc-dev@...ts.ozlabs.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 08/22] perf powerpc: Support CPU ID matching for Powerpc

From: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>

Implement code that returns the generic CPU ID string for Powerpc.  This
will be used to identify the specific table of PMU events to
parse/compare user specified events against.

Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Acked-by: Ingo Molnar <mingo@...nel.org>
Acked-by: Jiri Olsa <jolsa@...hat.com>
Cc: Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: linuxppc-dev@...ts.ozlabs.org
Link: http://lkml.kernel.org/r/1473978296-20712-5-git-send-email-sukadev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/arch/powerpc/util/header.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c
index f8ccee132867..9aaa6f5a9347 100644
--- a/tools/perf/arch/powerpc/util/header.c
+++ b/tools/perf/arch/powerpc/util/header.c
@@ -32,3 +32,14 @@ get_cpuid(char *buffer, size_t sz)
 	}
 	return -1;
 }
+
+char *
+get_cpuid_str(void)
+{
+	char *bufp;
+
+	if (asprintf(&bufp, "%.8lx", mfspr(SPRN_PVR)) < 0)
+		bufp = NULL;
+
+	return bufp;
+}
-- 
2.7.4