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[v3,0/3] Enable Wa_14019159160 and Wa_16019325821 for MTL

Message ID 20240104180541.2966374-1-John.C.Harrison@Intel.com (mailing list archive)
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Series Enable Wa_14019159160 and Wa_16019325821 for MTL | expand

Message

John Harrison Jan. 4, 2024, 6:05 p.m. UTC 
From: John Harrison <John.C.Harrison@Intel.com>

Enable Wa_14019159160 and  Wa_16019325821 for MTL

RCS/CCS workarounds for MTL.

v2: Fix bug in WA KLV implementation (offset not being reset to start
of list). Add better comment to prep patch about how KLVs can be added.
Add a module parameter override and disable the w/a by default as it
causes performance regressions and is only required by very specific
workloads.
v3: Rebase to latest tree. Drop module parameter as performance
regression is apparently not detectable after all and a bunch of more
common workloads have been seen to hit the issue.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>


John Harrison (3):
  drm/i915: Enable Wa_16019325821
  drm/i915/guc: Add support for w/a KLVs
  drm/i915/guc: Enable Wa_14019159160

 drivers/gpu/drm/i915/gt/gen8_engine_cs.c      | 22 +++--
 drivers/gpu/drm/i915/gt/intel_engine_types.h  |  8 +-
 .../gpu/drm/i915/gt/uc/abi/guc_errors_abi.h   |  1 +
 drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h |  7 ++
 drivers/gpu/drm/i915/gt/uc/intel_guc.c        |  5 ++
 drivers/gpu/drm/i915/gt/uc/intel_guc.h        |  2 +
 drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c    | 89 ++++++++++++++++++-
 drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c     |  6 ++
 drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   |  8 +-
 .../gpu/drm/i915/gt/uc/intel_guc_submission.c |  8 +-
 10 files changed, 141 insertions(+), 15 deletions(-)