From patchwork Wed Nov 29 22:21:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "David E. 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Box" To: linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org, ilpo.jarvinen@linux.intel.com, rajvi.jingar@linux.intel.com Subject: [PATCH V6 00/20] intel_pmc: Add telemetry API to read counters Date: Wed, 29 Nov 2023 14:21:12 -0800 Message-Id: <20231129222132.2331261-1-david.e.box@linux.intel.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On newer Intel silicon, more IP counters are being added in Intel Platform Monitoring Technology (PMT) telemetry spaces hosted in MMIO. There is a need for the intel_pmc_core driver and other drivers to access PMT hosted telemetry in the kernel using an API. This patchset adds driver APIs to allow registering and reading telemetry entries. It makes changes to the intel_pmc_core driver to use these interfaces to access the low power mode counters that are now exclusively available from PMT. David E. Box (15): platform/x86/intel/vsec: Fix xa_alloc memory leak platform/x86/intel/vsec: Remove unnecessary return platform/x86/intel/vsec: Move structures to header platform/x86/intel/vsec: remove platform_info from vsec device structure platform/x86/intel/vsec: Use cleanup.h platform/x86/intel/vsec: Assign auxdev parent by argument platform/x86/intel/vsec: Add base address field platform/x86/intel/pmt: Add header to struct intel_pmt_entry platform/x86/intel/pmt: telemetry: Export API to read telemetry platform/x86/intel/pmc: Allow pmc_core_ssram_init to fail platform/x86/intel/pmc: Cleanup SSRAM discovery platform/x86/intel/pmc/mtl: Use return value from pmc_core_ssram_init() platform/x86/intel/pmc: Find and register PMC telemetry entries platform/x86/intel/pmc: Add debug attribute for Die C6 counter platform/x86/intel/pmc: Show Die C6 counter on Meteor Lake Gayatri Kammela (1): platform/x86/intel/vsec: Add intel_vsec_register Rajvi Jingar (1): platform/x86/intel/pmc: Display LPM requirements for multiple PMCs Xi Pardee (3): platform/x86:intel/pmc: Call pmc_get_low_power_modes from platform init platform/x86/intel/pmc: Retrieve LPM information using Intel PMT platform/x86/intel/pmc: Read low power mode requirements for MTL-M and MTL-P drivers/platform/x86/intel/pmc/Kconfig | 1 + drivers/platform/x86/intel/pmc/adl.c | 2 + drivers/platform/x86/intel/pmc/cnp.c | 2 + drivers/platform/x86/intel/pmc/core.c | 185 +++++++++----- drivers/platform/x86/intel/pmc/core.h | 10 +- drivers/platform/x86/intel/pmc/core_ssram.c | 265 +++++++++++++++++--- drivers/platform/x86/intel/pmc/icl.c | 10 +- drivers/platform/x86/intel/pmc/mtl.c | 87 ++++++- drivers/platform/x86/intel/pmc/spt.c | 10 +- drivers/platform/x86/intel/pmc/tgl.c | 1 + drivers/platform/x86/intel/pmt/class.c | 43 +++- drivers/platform/x86/intel/pmt/class.h | 30 ++- drivers/platform/x86/intel/pmt/crashlog.c | 2 +- drivers/platform/x86/intel/pmt/telemetry.c | 193 +++++++++++++- drivers/platform/x86/intel/pmt/telemetry.h | 126 ++++++++++ drivers/platform/x86/intel/vsec.c | 131 +++++----- drivers/platform/x86/intel/vsec.h | 45 +++- 17 files changed, 939 insertions(+), 204 deletions(-) create mode 100644 drivers/platform/x86/intel/pmt/telemetry.h base-commit: b85ea95d086471afb4ad062012a4d73cd328fa86