Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758510AbcJTJbH (ORCPT ); Thu, 20 Oct 2016 05:31:07 -0400 Received: from mail-lf0-f67.google.com ([209.85.215.67]:33201 "EHLO mail-lf0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756413AbcJTJbA (ORCPT ); Thu, 20 Oct 2016 05:31:00 -0400 From: Jan Glauber To: Mark Rutland , Will Deacon Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Jan Glauber Subject: [PATCH v3 0/5] Cavium ThunderX uncore PMU support Date: Thu, 20 Oct 2016 11:30:36 +0200 Message-Id: <1476955841-27898-1-git-send-email-jglauber@cavium.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3183 Lines: 71 Sorry for the long time it took for re-cooking this patch set. The v3 should address all of Marks previous comments, things I didn't change are listed below. Not changed: - Stick to NUMA node ID to detect the socket a device belongs to but made uncore depend on CONFIG_NUMA. - Stick to initcall for uncore framework because it is easier to do the scanning for the same type of PCI devices, also I don't know if the PCI layer would allow for several drivers to register for the same device ID. Note: I'm using perf_sw_context in difference to perf_invalid_context (see WARN_ON in perf_pmu_register). Reason is that with perf_invalid_context add() is never called and the counter results are shown as "unsupported" by perf. With perf_sw_context everything works as expected. Patches are against 4.9.0-rc1 Changes to v2: - Embedded struct pmu and killed uncore->type - Simplified add functions - Unified functions where possible into a common implementation - Use arrays to translate non-contiguous counter addresses to event_id's visible to the user - Sorted includes - Got rid of division for previous counter values - Removed unneeded WARN_ONs - Use sizeof(*ptr) - Use bool for event_valid return - Fixed HES_STOPPED logic - Added some design notes and improved (hopefully) comments - Removed pass1 counter support for now - Merged EVENT_ATTR and EVENT_PTR defines into one (unreadable) thing - Use pmu_enable|disable to start|stop the OCX TLK counter set - Moved cpumask into thunder_uncore struct - Switched to new cpuhp stuff. I still don't care about the CPU location used to access an uncore device, it may cross the CCPI and we'll pay a performance penalty. We might optimize this later, for now I feel it is not worth the time optimizing it. ------------------------ Jan Glauber (5): arm64: perf: Basic uncore counter support for Cavium ThunderX SOC arm64: perf: Cavium ThunderX L2C TAD uncore support arm64: perf: Cavium ThunderX L2C CBC uncore support arm64: perf: Cavium ThunderX LMC uncore support arm64: perf: Cavium ThunderX OCX TLK uncore support drivers/perf/Kconfig | 13 + drivers/perf/Makefile | 1 + drivers/perf/uncore/Makefile | 5 + drivers/perf/uncore/uncore_cavium.c | 355 ++++++++++++++++++++++++++ drivers/perf/uncore/uncore_cavium.h | 75 ++++++ drivers/perf/uncore/uncore_cavium_l2c_cbc.c | 148 +++++++++++ drivers/perf/uncore/uncore_cavium_l2c_tad.c | 379 ++++++++++++++++++++++++++++ drivers/perf/uncore/uncore_cavium_lmc.c | 118 +++++++++ drivers/perf/uncore/uncore_cavium_ocx_tlk.c | 344 +++++++++++++++++++++++++ include/linux/cpuhotplug.h | 1 + 10 files changed, 1439 insertions(+) create mode 100644 drivers/perf/uncore/Makefile create mode 100644 drivers/perf/uncore/uncore_cavium.c create mode 100644 drivers/perf/uncore/uncore_cavium.h create mode 100644 drivers/perf/uncore/uncore_cavium_l2c_cbc.c create mode 100644 drivers/perf/uncore/uncore_cavium_l2c_tad.c create mode 100644 drivers/perf/uncore/uncore_cavium_lmc.c create mode 100644 drivers/perf/uncore/uncore_cavium_ocx_tlk.c -- 1.9.1