From 9d6df3fdfc470c313b7ea13dbe8a63fb21ab7365 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Thu, 25 Feb 2010 18:04:33 -0600 Subject: powerpc/perf: Build callchain code regardless of hardware event support. It's also useful for software events, as well as future support for other types of hardware counters. Signed-off-by: Scott Wood Acked-by: Paul Mackerras Signed-off-by: Kumar Gala --- arch/powerpc/kernel/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/kernel/Makefile') diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index c002b04..93fd162 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -98,7 +98,8 @@ obj64-$(CONFIG_AUDIT) += compat_audit.o obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o -obj-$(CONFIG_PPC_PERF_CTRS) += perf_event.o perf_callchain.o +obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o +obj-$(CONFIG_PPC_PERF_CTRS) += perf_event.o obj64-$(CONFIG_PPC_PERF_CTRS) += power4-pmu.o ppc970-pmu.o power5-pmu.o \ power5+-pmu.o power6-pmu.o power7-pmu.o obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o -- cgit v1.1 From a11106544f33c104706ae42d27219a409b67478e Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Thu, 25 Feb 2010 18:09:45 -0600 Subject: powerpc/perf: e500 support This implements perf_event support for the Freescale embedded performance monitor, based on the existing perf_event.c that supports server/classic chips. Some limitations: - Performance monitor interrupts are regular EE interrupts, and thus you can't profile places with interrupts disabled. We may want to implement soft IRQ-disabling, with perfmon interrupts exempted and treated as NMIs. - When trying to schedule multiple event groups at once, and using restricted events, situations could arise where scheduling fails even though it would be possible. Consider three groups, each with two events. One group has restricted events, the others don't. The two non-restricted groups are scheduled, then one is removed, which happens to occupy the two counters that can't do restricted events. The remaining non-restricted group will not be moved to the non-restricted-capable counters to make room if the restricted group tries to be scheduled. Signed-off-by: Scott Wood Acked-by: Paul Mackerras Signed-off-by: Kumar Gala --- arch/powerpc/kernel/Makefile | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/powerpc/kernel/Makefile') diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 93fd162..8773263 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -99,11 +99,15 @@ obj64-$(CONFIG_AUDIT) += compat_audit.o obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o + obj-$(CONFIG_PPC_PERF_CTRS) += perf_event.o obj64-$(CONFIG_PPC_PERF_CTRS) += power4-pmu.o ppc970-pmu.o power5-pmu.o \ power5+-pmu.o power6-pmu.o power7-pmu.o obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o +obj-$(CONFIG_FSL_EMB_PERF_EVENT) += perf_event_fsl_emb.o +obj-$(CONFIG_FSL_EMB_PERF_EVENT_E500) += e500-pmu.o + obj-$(CONFIG_8XX_MINIMAL_FPEMU) += softemu8xx.o ifneq ($(CONFIG_PPC_INDIRECT_IO),y) -- cgit v1.1