xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

x86/cpu: Move resctrl CPUID code to resctrl/

Browse Source 
The function determining a platform's support and properties of cache
occupancy and memory bandwidth monitoring (properties of
X86_FEATURE_CQM_LLC) can be found among the common CPU code. After
the feature's properties is populated in the per-CPU data the resctrl
subsystem is the only consumer (via boot_cpu_data).

Move the function that obtains the CPU information used by resctrl to
the resctrl subsystem and rename it from init_cqm() to
resctrl_cpu_detect(). The function continues to be called from the
common CPU code. This move is done in preparation of the addition of some
vendor specific code.

No functional change.

Suggested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/38433b99f9d16c8f4ee796f8cc42b871531fa203.1588715690.git.reinette.chatre@intel.com
This commit is contained in:
Reinette Chatre
2020-05-05 15:36:13 -07:00
committed by Borislav Petkov
parent 8dd97c6518
commit 0118ad82c2
3 changed files with 29 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/x86/include/asm/resctrl.h
View File

@@ -84,9 +84,12 @@ static inline void resctrl_sched_in(void)
__resctrl_sched_in();
}
void resctrl_cpu_detect(struct cpuinfo_x86 *c);
#else
static inline void resctrl_sched_in(void) {}
static inline void resctrl_cpu_detect(struct cpuinfo_x86 *c) {}
#endif /* CONFIG_X86_CPU_RESCTRL */