d805456c - platform/x86: ISST: Enumerate TPMI SST and create framework

Wed, 08 Mar 2023 07:06:36 +0000

platform/x86: ISST: Enumerate TPMI SST and create frameworkEnumerate TPMI SST driver and create basic framework to add morefeatures.The basic user space interface is still same as the legacy using/dev/isst_interface. Users of "intel-speed-select" utility shouldbe able to use same commands as prior gens without being awareof new underlying hardware interface.TPMI SST driver enumerates on device "intel_vsec.tpmi-sst". Since therecan be multiple instances and there is one common SST core, splitimplementation into two parts: A common core part and an enumerationpart. The enumeration driver is loaded for each device instance andregister with the TPMI SST core driver.On very first enumeration the TPMI SST core driver register with SSTcore driver to get IOCTL callbacks. The api_version is incrementedfor IOCTL ISST_IF_GET_PLATFORM_INFO, so that user space can issuenew IOCTLs.Each TPMI package contains multiple power domains. Each power domainhas its own set of SST controls. For each domain map the MMIO memoryand update per domain struct tpmi_per_power_domain_info. This informationwill be used to implement other SST interfaces.Implement first IOCTL commands to get number of TPMI SST instancesand instance mask as some of the power domains may not have anySST controls.Signed-off-by: Srinivas Pandruvada Reviewed-by: Hans de Goede Reviewed-by: Zhang Rui Tested-by: Pragya Tanwar Link: https://lore.kernel.org/r/20230308070642.1727167-3-srinivas.pandruvada@linux.intel.comSigned-off-by: Hans de Goede List of files: /linux-6.15/drivers/platform/x86/intel/speed_select_if/Makefile

6b1e4828 - platform/x86: intel_speed_select_if: Move to intel sub-directory

Fri, 20 Aug 2021 11:04:51 +0000

platform/x86: intel_speed_select_if: Move to intel sub-directoryMove Intel Speed Select interface driver to intel sub-directory to improvereadability and rename it from intel_speed_select_if to speed_select_if.Signed-off-by: Kate Hsuan Reviewed-by: Hans de Goede Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210820110458.73018-14-andriy.shevchenko@linux.intel.comSigned-off-by: Hans de Goede List of files: /linux-6.15/drivers/platform/x86/intel/speed_select_if/Makefile

Changes in Makefile

d805456c - platform/x86: ISST: Enumerate TPMI SST and create framework

6b1e4828 - platform/x86: intel_speed_select_if: Move to intel sub-directory