[PATCH v3 0/3] x86,fs/resctrl,arm_mpam: Factor MBA parse-time conversion to be per-arch

[Ben Horgan <ben.horgan@arm.com>]

This is a new version of Dave Martin's patch [1] to delegate rounding of
bandwidth control user values to the arch code. As there is now more than one
architecture using resctrl, I split the original patch into two, a core resctrl
patch and an x86 patch, and added an MPAM patch. Please let me know if the patch
break down and ordering is sensible and whether the pattern should be followed
for any future similar changes.

This does have a user visible effect on MB schema when using MPAM hardware
with 'bandwidth_gran' greater than 1. I'm not sure if MPAM hardware with such
coarse controls exists in the wild but it is spec compliant and I've tested it
on a model.

[1] https://lore.kernel.org/lkml/20251031154225.14799-1-Dave.Martin@arm.com/

Ben Horgan (2):
  x86/resctrl: Add resctrl_arch_preconvert_bw()
  arm_mpam: resctrl: Add pass-through resctrl_arch_preconvert_bw()

Dave Martin (1):
  fs/resctrl: Factor MBA parse-time conversion to be per-arch

 Documentation/filesystems/resctrl.rst     | 17 +++++++++--------
 arch/x86/kernel/cpu/resctrl/ctrlmondata.c |  6 ++++++
 drivers/resctrl/mpam_resctrl.c            |  5 +++++
 fs/resctrl/ctrlmondata.c                  |  6 +++---
 include/linux/resctrl.h                   | 19 +++++++++++++++++++
 5 files changed, 42 insertions(+), 11 deletions(-)

-- 
2.43.0