[PATCH v4 00/21] 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, 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

Ville Syrjälä (21):
  drm/i915/dsb: Use intel_dsb_ins_align() in intel_dsb_align_tail()
  drm/i915/dsb: Provide intel_dsb_head() and intel_dsb_size()
  drm/i915/dsb: Introduce intel_dsb_exec_time_us()
  drm/i915/dsb: Garbage collect the MMIO DEwake stuff
  drm/i915/dsb: Move the DSB_PMCTRL* reset out of intel_dsb_finish()
  drm/i915/dsb: Disable the GOSUB interrupt
  drm/i915/dmc: Limit PIPEDMC clock gating w/a to just ADL/DG2/MTL
  drm/i915/dmc: Parametrize MTL_PIPEDMC_GATING_DIS
  drm/i915: Set PKG_C_LATENCY.added_wake_time to 0
  drm/i915: Try to program PKG_C_LATENCY more correctly
  drm/i915/dmc: Shuffle code around
  drm/i915/dmc: Reload PIPEDMC MMIO registers for pipe C/D on PTL+
  drm/i915/dmc: Assert DMC is loaded harder
  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
  drm/i915/flipq: Disable PSR for extra flip queue coverage

 drivers/gpu/drm/i915/Makefile                 |   1 +
 drivers/gpu/drm/i915/display/intel_display.c  |  57 ++-
 .../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   |   3 +-
 .../i915/display/intel_display_power_well.c   |   4 +-
 .../drm/i915/display/intel_display_types.h    |  20 +
 drivers/gpu/drm/i915/display/intel_dmc.c      | 319 ++++++++----
 drivers/gpu/drm/i915/display/intel_dmc.h      |  13 +-
 drivers/gpu/drm/i915/display/intel_dmc_regs.h | 192 ++++++-
 drivers/gpu/drm/i915/display/intel_dsb.c      | 120 ++---
 drivers/gpu/drm/i915/display/intel_dsb.h      |   6 +-
 drivers/gpu/drm/i915/display/intel_flipq.c    | 473 ++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_flipq.h    |  37 ++
 drivers/gpu/drm/i915/display/skl_watermark.c  | 108 ++--
 drivers/gpu/drm/i915/i915_reg.h               |   3 +-
 drivers/gpu/drm/xe/Makefile                   |   1 +
 18 files changed, 1141 insertions(+), 228 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/display/intel_flipq.c
 create mode 100644 drivers/gpu/drm/i915/display/intel_flipq.h

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2.49.0