[PATCH v5 0/9] drm/i915/flipq: Rough flip queue implementation

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Initial stab at implementing the PIPEDMC based flip queue.
Briefly smoke tested on LNL and PTL-A0, not much more.

Still has quite a few warts..

v2: cleaned up a few of the warts at least
    should work on PTL now
v3: Rebase due to DSB GOSUB stuff getting merged
    Try to fix PKG_C_LATENCY
    Ignore INT_VECTOR when opther PIPEDMC interrupt are present
v4: Fix up some DSB issues
    Limit DMC clock gating w/as
    Reload pipe C/D PIPEDMC MMIOs on PTL
    Disable PSR in order to get a bit more CI coverage
v5: DMC and DSB fixes already merged
    Drop the DMC halt w/a for PTL-B0+
    Add some docs

Ville Syrjälä (9):
  drm/i915: Set PKG_C_LATENCY.added_wake_time to 0
  drm/i915: Try to program PKG_C_LATENCY more correctly
  drm/i915/dmc: Define flip queue related PIPEDMC registers
  drm/i915/flipq: Provide the nuts and bolts code for flip queue
  drm/i915/flipq: Implement flip queue based commit path
  drm/i915/flipq: Implement Wa_18034343758
  drm/i915/flipq: Implement Wa_16018781658 for LNL-A0
  drm/i915/flipq: Add intel_flipq_dump()
  drm/i915/flipq: Enable flipq by default for testing

 Documentation/gpu/i915.rst                    |   6 +
 drivers/gpu/drm/i915/Makefile                 |   1 +
 drivers/gpu/drm/i915/display/intel_display.c  |  53 +-
 .../gpu/drm/i915/display/intel_display_core.h |   6 +
 .../drm/i915/display/intel_display_driver.c   |   3 +
 .../drm/i915/display/intel_display_params.c   |   3 +
 .../drm/i915/display/intel_display_params.h   |   1 +
 .../drm/i915/display/intel_display_types.h    |  20 +
 drivers/gpu/drm/i915/display/intel_dmc.c      |  94 +++-
 drivers/gpu/drm/i915/display/intel_dmc.h      |  11 +
 drivers/gpu/drm/i915/display/intel_dmc_regs.h | 190 +++++++
 drivers/gpu/drm/i915/display/intel_flipq.c    | 484 ++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_flipq.h    |  37 ++
 drivers/gpu/drm/i915/display/skl_watermark.c  | 109 ++--
 drivers/gpu/drm/xe/Makefile                   |   1 +
 15 files changed, 955 insertions(+), 64 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/display/intel_flipq.c
 create mode 100644 drivers/gpu/drm/i915/display/intel_flipq.h

-- 
2.49.0