From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e37.co.us.ibm.com (e37.co.us.ibm.com [32.97.110.158]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 6DF832C0091 for ; Fri, 17 Jan 2014 10:54:07 +1100 (EST) Received: from /spool/local by e37.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 16 Jan 2014 16:54:04 -0700 Received: from b03cxnp07029.gho.boulder.ibm.com (b03cxnp07029.gho.boulder.ibm.com [9.17.130.16]) by d03dlp02.boulder.ibm.com (Postfix) with ESMTP id 333073E4003F for ; Thu, 16 Jan 2014 16:54:01 -0700 (MST) Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by b03cxnp07029.gho.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s0GLpb2E4915506 for ; Thu, 16 Jan 2014 22:51:37 +0100 Received: from d03av03.boulder.ibm.com (localhost [127.0.0.1]) by d03av03.boulder.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s0GNs0sx029742 for ; Thu, 16 Jan 2014 16:54:01 -0700 From: Cody P Schafer To: Linux PPC Subject: [PATCH 0/8] Add support for PowerPC Hypervisor supplied performance counters Date: Thu, 16 Jan 2014 15:53:46 -0800 Message-Id: <1389916434-2288-1-git-send-email-cody@linux.vnet.ibm.com> Cc: Peter Zijlstra , LKML , Ingo Molnar , Paul Mackerras , Arnaldo Carvalho de Melo , Cody P Schafer List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , These patches add basic pmus for 2 powerpc hypervisor interfaces to obtain performance counters: gpci ("get performance counter info") and 24x7. The counters supplied by these interfaces are continually counting and never need to be (and cannot be) disabled or enabled. They additionally do not generate any interrupts. This makes them in some regards similar to software counters, and as a result their implimentation shares some common code (which an initial patch exposes) with the sw counters. There is ongoing work to support transactions for each of these pmus. Cody P Schafer (8): perf: add PMU_RANGE_ATTR() helper for use by sw-like pmus perf core: export swevent hrtimer helpers powerpc: add hvcalls for 24x7 and gpci (get performance counter info) powerpc: add hv_gpci interface header powerpc: add 24x7 interface header powerpc/perf: add support for the hv gpci (get performance counter info) interface powerpc/perf: add support for the hv 24x7 interface powerpc/perf: add kconfig option for hypervisor provided counters arch/powerpc/include/asm/hv_24x7.h | 239 ++++++++++++++++ arch/powerpc/include/asm/hv_gpci.h | 490 +++++++++++++++++++++++++++++++++ arch/powerpc/include/asm/hvcall.h | 6 +- arch/powerpc/perf/Makefile | 2 + arch/powerpc/perf/hv-24x7.c | 354 ++++++++++++++++++++++++ arch/powerpc/perf/hv-gpci.c | 235 ++++++++++++++++ arch/powerpc/platforms/Kconfig.cputype | 6 + include/linux/perf_event.h | 22 +- kernel/events/core.c | 8 +- 9 files changed, 1356 insertions(+), 6 deletions(-) create mode 100644 arch/powerpc/include/asm/hv_24x7.h create mode 100644 arch/powerpc/include/asm/hv_gpci.h create mode 100644 arch/powerpc/perf/hv-24x7.c create mode 100644 arch/powerpc/perf/hv-gpci.c -- 1.8.5.2