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| author | James Morse <james.morse@arm.com> | 2022-09-02 18:48:28 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-09-23 15:24:16 +0300 |
| commit | d80975e264c8f01518890f3d91ab5bada8fa7f5e (patch) | |
| tree | ac727af5ee8384f3e88b6fc0252932233dc0e92b /include/linux/resctrl.h | |
| parent | ae2328b52962531c2d7c6b531022a3eb2d680f17 (diff) | |
| download | linux-d80975e264c8f01518890f3d91ab5bada8fa7f5e.tar.xz | |
x86/resctrl: Add resctrl_rmid_realloc_limit to abstract x86's boot_cpu_data
resctrl_rmid_realloc_threshold can be set by user-space. The maximum
value is specified by the architecture.
Currently max_threshold_occ_write() reads the maximum value from
boot_cpu_data.x86_cache_size, which is not portable to another
architecture.
Add resctrl_rmid_realloc_limit to describe the maximum size in bytes
that user-space can set the threshold to.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Jamie Iles <quic_jiles@quicinc.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Xin Hao <xhao@linux.alibaba.com>
Tested-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20220902154829.30399-21-james.morse@arm.com
Diffstat (limited to 'include/linux/resctrl.h')
| -rw-r--r-- | include/linux/resctrl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h index 9995d043650a..cb857f753322 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -251,5 +251,6 @@ void resctrl_arch_reset_rmid(struct rdt_resource *r, struct rdt_domain *d, u32 rmid, enum resctrl_event_id eventid); extern unsigned int resctrl_rmid_realloc_threshold; +extern unsigned int resctrl_rmid_realloc_limit; #endif /* _RESCTRL_H */ |