From: Suma Hegde <suma.hegde@xxxxxxx> AMD MI300A processor supports metrics table, a structure of data shared by the SMU to the CPU, Which provides a bunch of information in one go, this reduces the latency in telemetry and adds atomicity to the information. The following modifications and additions are needed to support reading the metrics table. 1. Create a separate platform structure for platform specific data (such as socket index and lock). 2. Create binary sysfs file for metrics table which can be read by userspace and decoded using hsmp_metric_table structure defined in uapi header. 2.a E-SMI library and esmi_tool [https://github.com/amd/esmi_ib_library] will be updated with API and option respectively. 3. A general patch to modify logs to specify failure reasons. Suma Hegde (3): platform/x86/amd/hsmp: create plat specific struct platform/x86/amd/hsmp: add support for metrics tbl platform/x86/amd/hsmp: change the print message arch/x86/include/uapi/asm/amd_hsmp.h | 109 ++++++++++++++ drivers/platform/x86/amd/hsmp.c | 206 +++++++++++++++++++++++---- 2 files changed, 291 insertions(+), 24 deletions(-) -- 2.25.1
