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>
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@ -11,5 +11,7 @@ obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o
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obj-$(CONFIG_FSL_EMB_PERF_EVENT) += core-fsl-emb.o
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obj-$(CONFIG_FSL_EMB_PERF_EVENT_E500) += e500-pmu.o e6500-pmu.o
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obj-$(CONFIG_HV_PERF_CTRS) += hv-24x7.o hv-gpci.o hv-common.o
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obj-$(CONFIG_PPC64) += $(obj64-y)
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obj-$(CONFIG_PPC32) += $(obj32-y)
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@ -111,6 +111,18 @@ config CMM
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will be reused for other LPARs. The interface allows firmware to
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balance memory across many LPARs.
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config HV_PERF_CTRS
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bool "Hypervisor supplied PMU events (24x7 & GPCI)"
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default y
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depends on PERF_EVENTS && PPC_PSERIES
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help
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Enable access to hypervisor supplied counters in perf. Currently,
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this enables code that uses the hcall GetPerfCounterInfo and 24x7
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interfaces to retrieve counters. GPCI exists on Power 6 and later
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systems. 24x7 is available on Power 8 systems.
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If unsure, select Y.
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config DTL
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bool "Dispatch Trace Log"
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depends on PPC_SPLPAR && DEBUG_FS
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