diff options
| author | Tony Luck <tony.luck@intel.com> | 2025-12-17 09:21:01 -0800 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2026-01-09 16:37:07 +0100 |
| commit | 2e53ad66686a46b141c3395719afeee3057ffe2f (patch) | |
| tree | 6ef0ba37b9639688e3ce0a7392106b73e20e0dba /include/linux/resctrl.h | |
| parent | 39208e73a40e0e81a5b12ddc11157c0a414df307 (diff) | |
x86,fs/resctrl: Add and initialize a resource for package scope monitoring
Add a new PERF_PKG resource and introduce package level scope for monitoring
telemetry events so that CPU hotplug notifiers can build domains at the
package granularity.
Use the physical package ID available via topology_physical_package_id()
to identify the monitoring domains with package level scope. This enables
user space to use:
/sys/devices/system/cpu/cpuX/topology/physical_package_id
to identify the monitoring domain a CPU is associated with.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/20251217172121.12030-1-tony.luck@intel.com
Diffstat (limited to 'include/linux/resctrl.h')
| -rw-r--r-- | include/linux/resctrl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h index 2f938a5a16f8..861e63e868a1 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -53,6 +53,7 @@ enum resctrl_res_level { RDT_RESOURCE_L2, RDT_RESOURCE_MBA, RDT_RESOURCE_SMBA, + RDT_RESOURCE_PERF_PKG, /* Must be the last */ RDT_NUM_RESOURCES, @@ -270,6 +271,7 @@ enum resctrl_scope { RESCTRL_L2_CACHE = 2, RESCTRL_L3_CACHE = 3, RESCTRL_L3_NODE, + RESCTRL_PACKAGE, }; /** |