From: Cody P Schafer Date: Fri, 14 Mar 2014 05:00:43 +0000 (+1100) Subject: powerpc/perf: Add kconfig option for hypervisor provided counters X-Git-Tag: v4.14-rc1~7796^2~10 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=30daeb6c8f54841274d1845b85c41f44165b3755;p=platform%2Fkernel%2Flinux-rpi.git powerpc/perf: Add kconfig option for hypervisor provided counters The commit adds a Kconfig option which allows the hv_gpci and hv_24x7 PMUs, added in the preceeding commits, to be built. Signed-off-by: Cody P Schafer Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile index 60d71ee..f9c083a 100644 --- a/arch/powerpc/perf/Makefile +++ b/arch/powerpc/perf/Makefile @@ -11,5 +11,7 @@ obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o obj-$(CONFIG_FSL_EMB_PERF_EVENT) += core-fsl-emb.o obj-$(CONFIG_FSL_EMB_PERF_EVENT_E500) += e500-pmu.o e6500-pmu.o +obj-$(CONFIG_HV_PERF_CTRS) += hv-24x7.o hv-gpci.o hv-common.o + obj-$(CONFIG_PPC64) += $(obj64-y) obj-$(CONFIG_PPC32) += $(obj32-y) diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 80b1d57..2cb8b77 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -111,6 +111,18 @@ config CMM will be reused for other LPARs. The interface allows firmware to balance memory across many LPARs. +config HV_PERF_CTRS + bool "Hypervisor supplied PMU events (24x7 & GPCI)" + default y + depends on PERF_EVENTS && PPC_PSERIES + help + Enable access to hypervisor supplied counters in perf. Currently, + this enables code that uses the hcall GetPerfCounterInfo and 24x7 + interfaces to retrieve counters. GPCI exists on Power 6 and later + systems. 24x7 is available on Power 8 systems. + + If unsure, select Y. + config DTL bool "Dispatch Trace Log" depends on PPC_SPLPAR && DEBUG_FS