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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-02-10 18:24:56 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-02-10 18:24:56 -0800 |
| commit | dcb49710189d104d4edc07709615748dab61341b (patch) | |
| tree | 439d5829e126e2201ba0387fbd4784dca8c0ca5e /Documentation/admin-guide | |
| parent | 75b2a603671f9b649abe6b8e0d7662ea8c9f3c51 (diff) | |
| parent | a8848c4b43ad00c8a18db080206e3ffa53a08b91 (diff) | |
| download | linux-next-dcb49710189d104d4edc07709615748dab61341b.tar.gz linux-next-dcb49710189d104d4edc07709615748dab61341b.zip | |
Merge tag 'x86_cache_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 resource control updates from Borislav Petkov:
- Extend the resctrl machinery to support telemetry monitoring on
Intel (Tony Luck)
The practical usage of this is being able to tell how much energy or
how much work can be attributed to a group of tasks tracked under a
single idenitifier. Prepend this work with proper refactoring of
resctrl domains handling code.
* tag 'x86_cache_for_v7.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
x86,fs/resctrl: Update documentation for telemetry events
x86/resctrl: Enable RDT_RESOURCE_PERF_PKG
fs/resctrl: Move RMID initialization to first mount
x86,fs/resctrl: Compute number of RMIDs as minimum across resources
fs/resctrl: Move allocation/free of closid_num_dirty_rmid[]
x86/resctrl: Handle number of RMIDs supported by RDT_RESOURCE_PERF_PKG
x86/resctrl: Add energy/perf choices to rdt boot option
x86,fs/resctrl: Handle domain creation/deletion for RDT_RESOURCE_PERF_PKG
fs/resctrl: Refactor rmdir_mondata_subdir_allrdtgrp()
fs/resctrl: Refactor mkdir_mondata_subdir()
x86/resctrl: Read telemetry events
x86/resctrl: Find and enable usable telemetry events
x86,fs/resctrl: Add architectural event pointer
x86,fs/resctrl: Fill in details of events for performance and energy GUIDs
x86/resctrl: Discover hardware telemetry events
fs/resctrl: Emphasize that L3 monitoring resource is required for summing domains
x86,fs/resctrl: Add and initialize a resource for package scope monitoring
x86,fs/resctrl: Add an architectural hook called for first mount
x86,fs/resctrl: Support binary fixed point event counters
x86,fs/resctrl: Handle events that can be read from any CPU
...
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 37674ba5ce66..041fcc8834ee 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -6354,9 +6354,14 @@ Kernel parameters rdt= [HW,X86,RDT] Turn on/off individual RDT features. List is: cmt, mbmtotal, mbmlocal, l3cat, l3cdp, l2cat, l2cdp, - mba, smba, bmec, abmc, sdciae. + mba, smba, bmec, abmc, sdciae, energy[:guid], + perf[:guid]. E.g. to turn on cmt and turn off mba use: rdt=cmt,!mba + To turn off all energy telemetry monitoring and ensure that + perf telemetry monitoring associated with guid 0x12345 + is enabled use: + rdt=!energy,perf:0x12345 reboot= [KNL] Format (x86 or x86_64): |