forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 23
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
perf/x86/intel/uncore: Enable IIO stacks to PMON mapping for multi-se…
…gment SKX IIO stacks to PMON mapping on Skylake servers is exposed through introduced early attributes /sys/devices/uncore_iio_<pmu_idx>/dieX, where dieX is a file which holds "Segment:Root Bus" for PCIe root port which can be monitored by that IIO PMON block. These sysfs attributes are disabled for multiple segment topologies except VMD domains which start at 0x10000. This patch removes the limitation and enables IIO stacks to PMON mapping for multi-segment Skylake servers by introducing segment-aware intel_uncore_topology structure and attributing the topology configuration to the segment in skx_iio_get_topology() function. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Alexander Antonov <alexander.antonov@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Tested-by: Kyle Meyer <kyle.meyer@hpe.com> Link: https://lkml.kernel.org/r/20210323150507.2013-1-alexander.antonov@linux.intel.com
- Loading branch information
Alexander Antonov
authored and
Peter Zijlstra
committed
Apr 2, 2021
1 parent
c4c55e3
commit cface03
Showing
3 changed files
with
47 additions
and
34 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters