From 0fab1ba6ad6ba1f76380f92ead95c6e861ef8116 Mon Sep 17 00:00:00 2001 From: Kajol Jain Date: Fri, 25 Feb 2022 20:00:22 +0530 Subject: drivers/nvdimm: Add perf interface to expose nvdimm performance stats A common interface is added to get performance stats reporting support for nvdimm devices. Added interface defines supported event list, config fields for the event attributes and their corresponding bit values which are exported via sysfs. Interface also added support for pmu register/unregister functions, cpu hotplug feature along with macros for handling events addition via sysfs. It adds attribute groups for format, cpumask and events to the pmu structure. User could use the standard perf tool to access perf events exposed via nvdimm pmu. [Declare pmu functions in nd.h file to resolve implicit-function-declaration warning and make hotplug function static as reported by kernel test robot] Acked-by: Peter Zijlstra (Intel) Tested-by: Nageswara R Sastry Signed-off-by: Kajol Jain Link: https://lore.kernel.org/all/202202241242.zqzGkguy-lkp@intel.com/ Reported-by: kernel test robot Reviewed-by: Madhavan Srinivasan Link: https://lore.kernel.org/r/20220225143024.47947-3-kjain@linux.ibm.com Signed-off-by: Dan Williams --- drivers/nvdimm/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/nvdimm/Makefile') diff --git a/drivers/nvdimm/Makefile b/drivers/nvdimm/Makefile index 29203f3d3069..25dba6095612 100644 --- a/drivers/nvdimm/Makefile +++ b/drivers/nvdimm/Makefile @@ -18,6 +18,7 @@ nd_e820-y := e820.o libnvdimm-y := core.o libnvdimm-y += bus.o libnvdimm-y += dimm_devs.o +libnvdimm-y += nd_perf.o libnvdimm-y += dimm.o libnvdimm-y += region_devs.o libnvdimm-y += region.o -- cgit v1.2.3