diff options
| author | Babu Moger <babu.moger@amd.com> | 2025-10-20 12:38:52 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-23 16:20:43 +0200 |
| commit | 12e3db99bc4ea4037cf03c23148f17fb572b5902 (patch) | |
| tree | 38a645b01fe51d3d924893f28b8339b1378e9f6c /include/net/aligned_data.h | |
| parent | 78a2d39e2eefff3dc37952cb280436e1b69f66d7 (diff) | |
x86/resctrl: Refactor resctrl_arch_rmid_read()
[ Upstream commit 7c9ac605e202c4668e441fc8146a993577131ca1 ]
resctrl_arch_rmid_read() adjusts the value obtained from MSR_IA32_QM_CTR to
account for the overflow for MBM events and apply counter scaling for all the
events. This logic is common to both reading an RMID and reading a hardware
counter directly.
Refactor the hardware value adjustment logic into get_corrected_val() to
prepare for support of reading a hardware counter.
Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/cover.1757108044.git.babu.moger@amd.com
Stable-dep-of: 15292f1b4c55 ("x86/resctrl: Fix miscount of bandwidth event when reactivating previously unavailable RMID")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions