[devel-5.10] anolis: x86/perf/zhaoxin: Add uncore performance monitoring support · Pull Request !6252 · anolis/cloud-kernel

bugzilla: https://bugzilla.openanolis.cn/show_bug.cgi?id=28374

This patch adds uncore performance monitoring support for Zhaoxin processors. The implementation provides performance counter access for various uncore components across different Zhaoxin processor models.

Key features:
- Support for multiple Zhaoxin processor families: KX5000/KX6000, KH40000 (Yongfeng)
- Monitoring capabilities for uncore components including LLC, MESH, HOMESTOP, CCDie ZDI_PL, cIODie ZDI_PL, Memory Controller, and ZDI_DL_MMIO
- Topology detection for packages, dies, subnodes, and clusters
- MSR-based counter reading and configuration
- Support for both fixed and configurable performance counters
- Per-CPU topology information tracking
- Event constraint handling and proper CPU model-specific configuration

Files added:
- arch/x86/events/zhaoxin/uncore.c: Main uncore PMU implementation
- arch/x86/events/zhaoxin/uncore.h: Header definitions for uncore support

Files modified:
- arch/x86/events/zhaoxin/Makefile: Added uncore.o build target
- arch/x86/events/zhaoxin/core.c: Updated core PMU support with host/guest masking

The implementation follows the Linux perf framework's uncore PMU model, providing a consistent interface for performance monitoring tools to access uncore counters.

类型	指派人员	状态
审查	王鹏 xunlei 半叶枫尘 Artie Ding xueshuai 冯光辉 Guixin Liu kun-llfl Xuchun Shang	已完成 (0/0人)
测试	小龙	进行中 (0/1人)

GVPanolis/cloud-kernel

搜索帮助

GVP anolis/cloud-kernel