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Wed, 13 Sep 2023 16:41:11 -0700 (PDT) X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776979449145700761 X-GMAIL-MSGID: 1776979449145700761 Changes since v6: * Rebased on top of Besar's updated patch [PATCH v6] perf: arm_cspmu: Separate Arm and vendor module https://lore.kernel.org/all/20230821231608.50911-1-bwicaksono@nvidia.com/ * Changed Ampere specific module to use ida/ida_alloc() instead of idr/idr_alloc() Changes since v5: * Implemented the needed parts for vendor registration API * Rebased on top of Besar's patch [PATCH v5] perf: arm_cspmu: Separate Arm and vendor module https://lore.kernel.org/all/20230705104745.52255-1-bwicaksono@nvidia.com/ * v5: https://lore.kernel.org/all/20230714010141.824226-1-ilkka@os.amperecomputing.com/ Changes since v4: * "Support implementation specific filters" patch: - Added comment about filter and impdef registers and reference to the Coresight PMU specification to the commit message * "Add support for Ampere SoC PMU" patch: - Fixed the documentation and added more comments - Changed the incrementing PMU index number to idr_alloc() (Needs a impdef release hook patch to release unused index) - Fixed style in init_ops() to more reasonable - Moved bank parameter to config1 Changes since v3: * use_64b_counter_reg => has_atomic_dword (patch 1/4) * Removed the unnecessary hook for group validation (patch 3/4) * Added group config validation to ampere_cspmu_validate_event() (patch 4/4) * Rebased the patchset Changes since v2: * Changed to use supports_64bits_atomics() and replaced the split writes with lo_hi_writeq() * Added implementation specific group validation to patch 3 * Dropped shared interrupt patch * Removed unnecessary filter_enable parameter from ampere module * Added group validation to ampere module Changes since v1: * Rather than creating a completely new driver, implemented as a submodule of Arm CoreSight PMU driver * Fixed shared filter handling Ilkka Koskinen (4): perf: arm_cspmu: Split 64-bit write to 32-bit writes perf: arm_cspmu: Support implementation specific filters perf: arm_cspmu: Support implementation specific validation perf: arm_cspmu: ampere_cspmu: Add support for Ampere SoC PMU .../admin-guide/perf/ampere_cspmu.rst | 29 ++ drivers/perf/arm_cspmu/Kconfig | 10 + drivers/perf/arm_cspmu/Makefile | 2 + drivers/perf/arm_cspmu/ampere_cspmu.c | 271 ++++++++++++++++++ drivers/perf/arm_cspmu/arm_cspmu.c | 33 ++- drivers/perf/arm_cspmu/arm_cspmu.h | 7 + 6 files changed, 346 insertions(+), 6 deletions(-) create mode 100644 Documentation/admin-guide/perf/ampere_cspmu.rst create mode 100644 drivers/perf/arm_cspmu/ampere_cspmu.c