From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754488AbcJ2Lzz (ORCPT ); Sat, 29 Oct 2016 07:55:55 -0400 Received: from mail-wm0-f66.google.com ([74.125.82.66]:36687 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752124AbcJ2Lzx (ORCPT ); Sat, 29 Oct 2016 07:55:53 -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 v4 0/5] Cavium ThunderX uncore PMU support Date: Sat, 29 Oct 2016 13:55:28 +0200 Message-Id: X-Mailer: git-send-email 2.9.0.rc0.21.g7777322 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As discussed, changed perf_sw_context -> perf_invalid_context. 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. Patches are against 4.9.0-rc2. Changes to v3: - use perf_invalid_context 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 -- 2.9.0.rc0.21.g7777322 From mboxrd@z Thu Jan 1 00:00:00 1970 From: jglauber@cavium.com (Jan Glauber) Date: Sat, 29 Oct 2016 13:55:28 +0200 Subject: [PATCH v4 0/5] Cavium ThunderX uncore PMU support Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org As discussed, changed perf_sw_context -> perf_invalid_context. 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. Patches are against 4.9.0-rc2. Changes to v3: - use perf_invalid_context 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 -- 2.9.0.rc0.21.g7777322