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powerpc/perf: Add kconfig option for hypervisor provided counters

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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>
This commit is contained in:
Cody P Schafer
2014-03-14 16:00:43 +11:00
committed by Benjamin Herrenschmidt
parent 0e93a6edd9
commit 30daeb6c8f
2 changed files with 14 additions and 0 deletions
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12
arch/powerpc/platforms/pseries/Kconfig
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@@ -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