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perf: introduce new pmu and event to show package energy status in perf

RFC PATCH In review Zhang Rui 1 participant 1 message Aug 18, 2010

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Zhang Rui

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RFC PATCH 2/3 perf: introduce new pmu and event to show package energy status in perf

Introduce new pmu and event to show package energy status in perf.

Signed-off-by Zhang Rui <[email protected]>
---
 drivers/platform/x86/Kconfig      |    8 +
 drivers/platform/x86/Makefile     |    1 
 drivers/platform/x86/intel_rapl.c |  217 ++++++++++++++++++++++++++++++++++++++
 include/linux/perf_event.h        |    1 
 4 files changed, 227 insertions(+)
drivers/platform/x86/Kconfig +8 -0
Index: linux-2.6/drivers/platform/x86/Kconfig
===================================================================
@@ -541,4 +541,12 @@ config INTEL_SCU_IPC
 	  some embedded Intel x86 platforms. This is not needed for PC-type
 	  machines.
 
+config INTEL_RAPL
+	tristate "Intel RAPL Support"
+	depends on X86
+	default y
+	---help---
+	  RAPL, AKA, Running Average Power Limit provides mechanisms to enforce
+	  power consumption limit.
+
 endif # X86_PLATFORM_DEVICES
drivers/platform/x86/Makefile +1 -0
Index: linux-2.6/drivers/platform/x86/Makefile
===================================================================
@@ -26,3 +26,4 @@ obj-$(CONFIG_TOPSTAR_LAPTOP)	+= topstar-
 obj-$(CONFIG_ACPI_TOSHIBA)	+= toshiba_acpi.o
 obj-$(CONFIG_TOSHIBA_BT_RFKILL)	+= toshiba_bluetooth.o
 obj-$(CONFIG_INTEL_SCU_IPC)	+= intel_scu_ipc.o
+obj-$(CONFIG_INTEL_RAPL)	+= intel_rapl.o
include/linux/perf_event.h +1 -0
Index: linux-2.6/include/linux/perf_event.h
===================================================================
@@ -105,6 +105,7 @@ enum perf_sw_ids {
 	PERF_COUNT_SW_PAGE_FAULTS_MAJ		= 6,
 	PERF_COUNT_SW_ALIGNMENT_FAULTS		= 7,
 	PERF_COUNT_SW_EMULATION_FAULTS		= 8,
+	PERF_COUNT_SW_RAPL_ENERGY		= 9,
 
 	PERF_COUNT_SW_MAX,			/* non-ABI */
 };
drivers/platform/x86/intel_rapl.c new file +217 -0

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