[PATCH v2 0/6] Fix ctx workarounds for non-masked regs

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v2 of https://patchwork.freedesktop.org/series/119766/

Main change from v1 is the preparatory patch to handle GEN12_FF_MODE2.
This is a register that can't be read back since it's affected by
another workaround.

Also add some other cleanups/fixes nearby. Tested on DG2 with intel_reg
reading 0xb158 with a busy render engine. Now it's not losing the upper
bit anymore.

Also removed the Cc to stable. This will be handled separately once the
patch is merged. With graphics version 12 not being affected, this needs
to be backported only to kernel versions after DG2/MTL started to be
supported. But in that case the preparatory patch would also need to be
backported so it doesn't branch graphics version 12.

Lucas De Marchi (6):
  drm/i915/gt: Move wal_get_fw_for_rmw()
  drm/i915/gt: Clear all bits from GEN12_FF_MODE2
  drm/i915/gt: Fix context workarounds with non-masked regs
  drm/i915/gt: Drop read from GEN8_L3CNTLREG in ICL workaround
  drm/i915/gt: Enable read back on XEHP_FF_MODE2
  drm/i915/gt: Remove bogus comment on IVB_FBC_RT_BASE_UPPER

 drivers/gpu/drm/i915/gt/intel_workarounds.c | 124 ++++++++++----------
 1 file changed, 63 insertions(+), 61 deletions(-)

-- 
2.40.1




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