From 2d1b21ad7d1574c7aaa5b9acdb3a02fd37a11c01 Mon Sep 17 00:00:00 2001 From: Cody P Schafer Date: Fri, 14 Mar 2014 16:00:39 +1100 Subject: powerpc/perf: Add a shared interface to get gpci version and capabilities This exposes a simple way to grab the firmware provided collect_priveliged, ga, expanded, and lab capability bits. All of these bits come in from the same gpci request, so we've exposed all of them. Only the collect_priveliged bit is really used by the hv-gpci/hv-24x7 code, the other bits are simply exposed in sysfs to inform the user. Signed-off-by: Cody P Schafer Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/perf/hv-common.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 arch/powerpc/perf/hv-common.h (limited to 'arch/powerpc/perf/hv-common.h') diff --git a/arch/powerpc/perf/hv-common.h b/arch/powerpc/perf/hv-common.h new file mode 100644 index 000000000000..7e615bd38bca --- /dev/null +++ b/arch/powerpc/perf/hv-common.h @@ -0,0 +1,17 @@ +#ifndef LINUX_POWERPC_PERF_HV_COMMON_H_ +#define LINUX_POWERPC_PERF_HV_COMMON_H_ + +#include + +struct hv_perf_caps { + u16 version; + u16 collect_privileged:1, + ga:1, + expanded:1, + lab:1, + unused:12; +}; + +unsigned long hv_perf_caps_get(struct hv_perf_caps *caps); + +#endif -- cgit