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| author | James Morse <james.morse@arm.com> | 2022-09-02 15:48:25 +0000 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-09-23 14:22:20 +0200 |
| commit | 1d81d15db39c2b517bc58f63008c6255dd08aafe (patch) | |
| tree | 06e8685cb81b941dc338d71c714b2b6f60ce109f /arch/x86/kernel/tls.c | |
| parent | 8286618aca331bf17323ff3023ca831ac6e4b86f (diff) | |
| download | linux-1d81d15db39c2b517bc58f63008c6255dd08aafe.tar.bz2 | |
x86/resctrl: Move mbm_overflow_count() into resctrl_arch_rmid_read()
resctrl_arch_rmid_read() is intended as the function that an
architecture agnostic resctrl filesystem driver can use to
read a value in bytes from a counter. Currently the function returns
the MBM values in chunks directly from hardware. When reading a bandwidth
counter, mbm_overflow_count() must be used to correct for any possible
overflow.
mbm_overflow_count() is architecture specific, its behaviour should
be part of resctrl_arch_rmid_read().
Move the mbm_overflow_count() calls into resctrl_arch_rmid_read().
This allows the resctrl filesystems's prev_msr to be removed in
favour of the architecture private version.
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/20220902154829.30399-18-james.morse@arm.com
Diffstat (limited to 'arch/x86/kernel/tls.c')
0 files changed, 0 insertions, 0 deletions