[PATCH 0/3] Add a few sysctrl refactors in preparation for

[Stuart Summers <stuart.summers@intel.com>]

I'm doing some debug right now that touches address translation
(ATS) configuration around the suspend/resume time. Right now,
we're re-enabling ATS through the resume path regardless of whether
we get the d3cold hint, but we only re-enable the system controller
when the d3cold.allowed is set. This means if I'm trying to touch
this through the firmware, I might not be able to do that easily
on the resume path.

In this series I'm adding a few refactors that allow this kind of
debug. The first patch moves from a dynamic allocation of some of the
sysctrl buffers to static allocation to avoid re-allocation in the
resume path. The second patch moves the workaround initialization
a little earlier in the driver for an easier hook here. And the third
patch moves the sysctrl initialization outside of that d3cold.allowed
hint in the resume path.

All of this was developed in collaboration with Claude Opus.

Stuart Summers (3):
  drm/xe/sysctrl: Use preallocated mailbox staging buffers
  drm/xe: Process device OOB workarounds during early info init
  drm/xe/sysctrl: Restore the SoC remapper on every runtime resume

 drivers/gpu/drm/xe/xe_device.c          |  3 --
 drivers/gpu/drm/xe/xe_pci.c             | 14 +++++++
 drivers/gpu/drm/xe/xe_pm.c              |  9 +++-
 drivers/gpu/drm/xe/xe_sysctrl.c         |  6 ++-
 drivers/gpu/drm/xe/xe_sysctrl_mailbox.c | 56 +++++++++----------------
 drivers/gpu/drm/xe/xe_sysctrl_types.h   | 11 +++++
 6 files changed, 56 insertions(+), 43 deletions(-)

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2.43.0