[PATCH v2 00/10] Engine initialization cleanup

[Matt Roper <matthew.d.roper@intel.com>]

A lot of our engine initialization code was inherited from i915 and
hasn't received too much cleanup since that time.  There's also some
inconsistencies between the main initialization path used on all
platforms, and the vestigial execlist code which isn't actually used but
still remains in the driver as dead code for now.  Let's clean things up
a bit and, where possible, move the required engine programming into the
RTP infrastructure so that it will be applied on both initialization
paths, and be dumpable/checkable via debugfs.

There's some more restructuring that should happen to more clearly
distinguish software state initialization from hardware initialization
(and re-initialization on various resets & suspend/resume), but I'll
leave that to a follow-up series to prevent this one from getting too
complicated.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
Changes in v2:
- Restrict CCS enablement to Xe_HP and later.  The CCS engine has never
  been enabled on Xe_LP.
- Fix rules on MSI-X enablement to actually use the
  xe_rtp_match_has_msix function added.  (Shuicheng)
- Drop xe_hw_engine_mmio_write32() prototype from header.  (Shuicheng)
- Link to v1: https://lore.kernel.org/r/20260423-engine-setup-v1-0-baa94014e3e5@intel.com

---
Matt Roper (10):
      drm/xe: Move CCS enablement to engine setup RTP
      drm/xe/rtp: Add "always true" match function
      drm/xe: Stop programming BLIT_CCTL on Xe2 and later platforms
      drm/xe: Move HWSTAM programming to RTP
      drm/xe: Fix name and definition of GFX_MODE register
      drm/xe: Const-ify parameters to xe_device_has_* functions
      drm/xe: Move GFX_MODE programming to RTP
      drm/xe: Drop unnecessary STOP_RING clearing
      drm/xe: Drop xe_hw_engine_mmio_write32()
      drm/xe: Mark BCS engines as belonging to the GT forcewake domain

 drivers/gpu/drm/xe/regs/xe_engine_regs.h |  5 +-
 drivers/gpu/drm/xe/xe_device.h           | 14 +++---
 drivers/gpu/drm/xe/xe_execlist.c         |  9 ----
 drivers/gpu/drm/xe/xe_guc_ads.c          |  2 -
 drivers/gpu/drm/xe/xe_guc_capture.c      |  2 +-
 drivers/gpu/drm/xe/xe_hw_engine.c        | 83 +++++++++++++-------------------
 drivers/gpu/drm/xe/xe_hw_engine.h        |  1 -
 drivers/gpu/drm/xe/xe_lrc.c              | 20 --------
 drivers/gpu/drm/xe/xe_rtp.c              | 15 ++++++
 drivers/gpu/drm/xe/xe_rtp.h              | 24 +++++++++
 10 files changed, 82 insertions(+), 93 deletions(-)
---
base-commit: 6784fa94a98ae6fceef9c2c171c3e9fb8be6585f
change-id: 20260402-engine-setup-e66851295e18

Best regards,
-- 
Matt Roper
Graphics Software Engineer
Linux GPU Platform Enablement
Intel Corporation