# \[PATCH v17 04/19\] perf, tools: Support CPU ID matching for Powerpc

- From: Sukadev Bhattiprolu \<hidden\>
- Date: 2015-09-29 00:57:58 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2015/09/4585360
- Thread: https://ratatoskr.run/linuxppc-dev/2015/09/4585356/t.md

```text
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 <redacted>
Acked-by: Jiri Olsa <redacted>
---

Changelog[v14]
	- [Jiri Olsa] Move this independent code off into a separate patch.
---
 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 6c1b8a7..65f9391 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;
+}
-- 
2.5.3
```