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| author | James Morse <james.morse@arm.com> | 2025-03-11 21:36:59 +0300 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-03-12 14:23:10 +0300 |
| commit | 9be68b144a5b539c8503f2944888f7a30e669291 (patch) | |
| tree | 4cc9a44058599441e13b6079121fa7216a305d36 /include/linux/resctrl.h | |
| parent | f16adbaf9272ea7ed5d7bf8b261be8a9be949c31 (diff) | |
| download | linux-9be68b144a5b539c8503f2944888f7a30e669291.tar.xz | |
x86/resctrl: Add an arch helper to reset one resource
On umount(), resctrl resets each resource back to its default configuration.
It only ever does this for all resources in one go.
reset_all_ctrls() is architecture specific as it works with struct
rdt_hw_resource.
Make reset_all_ctrls() an arch helper that resets one resource.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghuay@nvidia.com>
Reviewed-by: Babu Moger <babu.moger@amd.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Tested-by: Peter Newman <peternewman@google.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Tested-by: Amit Singh Tomar <amitsinght@marvell.com> # arm64
Tested-by: Shanker Donthineni <sdonthineni@nvidia.com> # arm64
Tested-by: Babu Moger <babu.moger@amd.com>
Link: https://lore.kernel.org/r/20250311183715.16445-15-james.morse@arm.com
Diffstat (limited to 'include/linux/resctrl.h')
| -rw-r--r-- | include/linux/resctrl.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h index 326f7ba220e7..487b9657a7b5 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -394,6 +394,15 @@ void resctrl_arch_reset_rmid(struct rdt_resource *r, struct rdt_mon_domain *d, */ void resctrl_arch_reset_rmid_all(struct rdt_resource *r, struct rdt_mon_domain *d); +/** + * resctrl_arch_reset_all_ctrls() - Reset the control for each CLOSID to its + * default. + * @r: The resctrl resource to reset. + * + * This can be called from any CPU. + */ +void resctrl_arch_reset_all_ctrls(struct rdt_resource *r); + extern unsigned int resctrl_rmid_realloc_threshold; extern unsigned int resctrl_rmid_realloc_limit; |