On Thu, Aug 4, 2016 at 5:11 PM, Neil Leeder <nleeder@xxxxxxxxxxxxxx> wrote: > Adds perf events support for L2 cache PMU. > > The L2 cache PMU driver is named 'l2cache_0' and can be used > with perf events to profile L2 events such as cache hits > and misses. > > Signed-off-by: Neil Leeder <nleeder@xxxxxxxxxxxxxx> > --- > drivers/soc/qcom/Kconfig | 10 + > drivers/soc/qcom/Makefile | 1 + > drivers/soc/qcom/perf_event_l2.c | 839 +++++++++++++++++++++++++++++++++ > include/linux/soc/qcom/perf_event_l2.h | 81 ++++ > 4 files changed, 931 insertions(+) > create mode 100644 drivers/soc/qcom/perf_event_l2.c > create mode 100644 include/linux/soc/qcom/perf_event_l2.h > > diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig > index 21ec616..0b5ddb9 100644 > --- a/drivers/soc/qcom/Kconfig > +++ b/drivers/soc/qcom/Kconfig > @@ -19,6 +19,16 @@ config QCOM_L2_ACCESSORS > Provides support for accessing registers in the L2 cache > for Qualcomm Technologies chips. > > +config QCOM_PERF_EVENTS_L2 > + bool "Qualcomm Technologies L2-cache perf events" Since this is a bool, you shouldn't need module.h in your driver or any MODULE_<xyz> tags (if there are any). Thanks, Paul. -- > + depends on ARCH_QCOM && HW_PERF_EVENTS && ACPI > + select QCOM_L2_ACCESSORS > + help > + Provides support for the L2 cache performance monitor unit (PMU) > + in Qualcomm Technologies processors. > + Adds the L2 cache PMU into the perf events subsystem for > + monitoring L2 cache events. > + > config QCOM_PM > bool "Qualcomm Power Management" > depends on ARCH_QCOM && !ARM64 > diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile > index 6ef29b9..c8e89ca9 100644 > --- a/drivers/soc/qcom/Makefile > +++ b/drivers/soc/qcom/Makefile > @@ -1,5 +1,6 @@ > obj-$(CONFIG_QCOM_GSBI) += qcom_gsbi.o > obj-$(CONFIG_QCOM_L2_ACCESSORS) += l2-accessors.o > +obj-$(CONFIG_QCOM_PERF_EVENTS_L2) += perf_event_l2.o > obj-$(CONFIG_QCOM_PM) += spm.o > obj-$(CONFIG_QCOM_SMD) += smd.o > obj-$(CONFIG_QCOM_SMD_RPM) += smd-rpm.o > diff --git a/drivers/soc/qcom/perf_event_l2.c b/drivers/soc/qcom/perf_event_l2.c > new file mode 100644 > index 0000000..54c6790 > --- /dev/null > +++ b/drivers/soc/qcom/perf_event_l2.c > @@ -0,0 +1,839 @@ > +/* Copyright (c) 2015,2016 The Linux Foundation. All rights reserved. > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 and > + * only version 2 as published by the Free Software Foundation. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > +#define pr_fmt(fmt) "l2 perfevents: " fmt > + > +#include <linux/module.h> > +#include <linux/bitops.h> > +#include <linux/interrupt.h> > +#include <linux/io.h> > +#include <linux/irq.h> > +#include <linux/list.h> > +#include <linux/acpi.h> > +#include <linux/perf_event.h> > +#include <linux/platform_device.h> > +#include <linux/soc/qcom/perf_event_l2.h> > +#include <linux/soc/qcom/l2-accessors.h> > +#include <linux/topology.h> -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
