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| author |   Cody P Schafer <cody@linux.vnet.ibm.com> | 2014-03-14 16:00:43 +1100 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-03-24 09:48:32 +1100 |
| commit | 30daeb6c8f54841274d1845b85c41f44165b3755 (patch) | |
| tree | 4c45450d140a551994af7e4a013b08605aa5a694 /arch/powerpc | |
| parent | powerpc/perf: Add support for the hv 24x7 interface (diff) | |
| download | linux-dev-30daeb6c8f54841274d1845b85c41f44165b3755.tar.xz linux-dev-30daeb6c8f54841274d1845b85c41f44165b3755.zip | |
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 <cody@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/perf/Makefile | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/Kconfig | 12 |
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile index 60d71eea919c..f9c083a5652a 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 80b1d57c306a..2cb8b776c84a 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 |